diff options
author | tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-12-20 03:49:20 +0000 |
---|---|---|
committer | tromey <tromey@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-12-20 03:49:20 +0000 |
commit | 68b16280c97b4ebabda6e3f26d3f3462f557ab8f (patch) | |
tree | bc765c016644edf5697556965a00b30ff3ca18f5 /libjava/org/xml/sax/helpers | |
parent | 4ab16f021ddcaddcda46b79844c8e71a4e931856 (diff) | |
download | ppe42-gcc-68b16280c97b4ebabda6e3f26d3f3462f557ab8f.tar.gz ppe42-gcc-68b16280c97b4ebabda6e3f26d3f3462f557ab8f.zip |
2002-12-19 Anthony Green <green@redhat.com>
* Makefile.am (ordinary_java_source_files): Add
org/xml/sax/helpers/NewInstance.java.
* Makefile.in: Rebuilt.
* org/xml/sax/package.html, org/xml/sax/ext/package.html,
org/xml/sax/helpers/package.html: New files.
* org/xml/sax/*: Upgrade to SAX 2.0.1 release from
http://www.saxproject.org.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@60350 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libjava/org/xml/sax/helpers')
-rw-r--r-- | libjava/org/xml/sax/helpers/AttributeListImpl.java | 622 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/AttributesImpl.java | 1226 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/DefaultHandler.java | 915 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/LocatorImpl.java | 426 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/NamespaceSupport.java | 1459 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/NewInstance.java | 80 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/ParserAdapter.java | 2034 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/ParserFactory.java | 258 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/XMLFilterImpl.java | 1483 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/XMLReaderAdapter.java | 1065 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/XMLReaderFactory.java | 339 | ||||
-rw-r--r-- | libjava/org/xml/sax/helpers/package.html | 13 |
12 files changed, 5088 insertions, 4832 deletions
diff --git a/libjava/org/xml/sax/helpers/AttributeListImpl.java b/libjava/org/xml/sax/helpers/AttributeListImpl.java index 69754728c1f..6cabed4fe8b 100644 --- a/libjava/org/xml/sax/helpers/AttributeListImpl.java +++ b/libjava/org/xml/sax/helpers/AttributeListImpl.java @@ -1,310 +1,312 @@ -// SAX default implementation for AttributeList.
-// No warranty; no copyright -- use this as you will.
-// $Id: AttributeListImpl.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import org.xml.sax.AttributeList;
-
-import java.util.Vector;
-
-
-/**
- * Default implementation for AttributeList.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>AttributeList implements the deprecated SAX1 {@link
- * org.xml.sax.AttributeList AttributeList} interface, and has been
- * replaced by the new SAX2 {@link org.xml.sax.helpers.AttributesImpl
- * AttributesImpl} interface.</p>
- *
- * <p>This class provides a convenience implementation of the SAX
- * {@link org.xml.sax.AttributeList AttributeList} interface. This
- * implementation is useful both for SAX parser writers, who can use
- * it to provide attributes to the application, and for SAX application
- * writers, who can use it to create a persistent copy of an element's
- * attribute specifications:</p>
- *
- * <pre>
- * private AttributeList myatts;
- *
- * public void startElement (String name, AttributeList atts)
- * {
- * // create a persistent copy of the attribute list
- * // for use outside this method
- * myatts = new AttributeListImpl(atts);
- * [...]
- * }
- * </pre>
- *
- * <p>Please note that SAX parsers are not required to use this
- * class to provide an implementation of AttributeList; it is
- * supplied only as an optional convenience. In particular,
- * parser writers are encouraged to invent more efficient
- * implementations.</p>
- *
- * @deprecated This class implements a deprecated interface,
- * {@link org.xml.sax.AttributeList AttributeList};
- * that interface has been replaced by
- * {@link org.xml.sax.Attributes Attributes},
- * which is implemented in the
- * {@link org.xml.sax.helpers.AttributesImpl
- * AttributesImpl} helper class.
- * @since SAX 1.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.AttributeList
- * @see org.xml.sax.DocumentHandler#startElement
- */
-public class AttributeListImpl implements AttributeList
-{
-
- /**
- * Create an empty attribute list.
- *
- * <p>This constructor is most useful for parser writers, who
- * will use it to create a single, reusable attribute list that
- * can be reset with the clear method between elements.</p>
- *
- * @see #addAttribute
- * @see #clear
- */
- public AttributeListImpl ()
- {
- }
-
-
- /**
- * Construct a persistent copy of an existing attribute list.
- *
- * <p>This constructor is most useful for application writers,
- * who will use it to create a persistent copy of an existing
- * attribute list.</p>
- *
- * @param atts The attribute list to copy
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public AttributeListImpl (AttributeList atts)
- {
- setAttributeList(atts);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Methods specific to this class.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the attribute list, discarding previous contents.
- *
- * <p>This method allows an application writer to reuse an
- * attribute list easily.</p>
- *
- * @param atts The attribute list to copy.
- */
- public void setAttributeList (AttributeList atts)
- {
- int count = atts.getLength();
-
- clear();
-
- for (int i = 0; i < count; i++) {
- addAttribute(atts.getName(i), atts.getType(i), atts.getValue(i));
- }
- }
-
-
- /**
- * Add an attribute to an attribute list.
- *
- * <p>This method is provided for SAX parser writers, to allow them
- * to build up an attribute list incrementally before delivering
- * it to the application.</p>
- *
- * @param name The attribute name.
- * @param type The attribute type ("NMTOKEN" for an enumeration).
- * @param value The attribute value (must not be null).
- * @see #removeAttribute
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public void addAttribute (String name, String type, String value)
- {
- names.addElement(name);
- types.addElement(type);
- values.addElement(value);
- }
-
-
- /**
- * Remove an attribute from the list.
- *
- * <p>SAX application writers can use this method to filter an
- * attribute out of an AttributeList. Note that invoking this
- * method will change the length of the attribute list and
- * some of the attribute's indices.</p>
- *
- * <p>If the requested attribute is not in the list, this is
- * a no-op.</p>
- *
- * @param name The attribute name.
- * @see #addAttribute
- */
- public void removeAttribute (String name)
- {
- int i = names.indexOf(name);
-
- if (i >= 0) {
- names.removeElementAt(i);
- types.removeElementAt(i);
- values.removeElementAt(i);
- }
- }
-
-
- /**
- * Clear the attribute list.
- *
- * <p>SAX parser writers can use this method to reset the attribute
- * list between DocumentHandler.startElement events. Normally,
- * it will make sense to reuse the same AttributeListImpl object
- * rather than allocating a new one each time.</p>
- *
- * @see org.xml.sax.DocumentHandler#startElement
- */
- public void clear ()
- {
- names.removeAllElements();
- types.removeAllElements();
- values.removeAllElements();
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.AttributeList
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Return the number of attributes in the list.
- *
- * @return The number of attributes in the list.
- * @see org.xml.sax.AttributeList#getLength
- */
- public int getLength ()
- {
- return names.size();
- }
-
-
- /**
- * Get the name of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute name as a string, or null if there
- * is no attribute at that position.
- * @see org.xml.sax.AttributeList#getName(int)
- */
- public String getName (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)names.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the type of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute type as a string ("NMTOKEN" for an
- * enumeration, and "CDATA" if no declaration was
- * read), or null if there is no attribute at
- * that position.
- * @see org.xml.sax.AttributeList#getType(int)
- */
- public String getType (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)types.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the value of an attribute (by position).
- *
- * @param i The position of the attribute in the list.
- * @return The attribute value as a string, or null if
- * there is no attribute at that position.
- * @see org.xml.sax.AttributeList#getValue(int)
- */
- public String getValue (int i)
- {
- if (i < 0) {
- return null;
- }
- try {
- return (String)values.elementAt(i);
- } catch (ArrayIndexOutOfBoundsException e) {
- return null;
- }
- }
-
-
- /**
- * Get the type of an attribute (by name).
- *
- * @param name The attribute name.
- * @return The attribute type as a string ("NMTOKEN" for an
- * enumeration, and "CDATA" if no declaration was
- * read).
- * @see org.xml.sax.AttributeList#getType(java.lang.String)
- */
- public String getType (String name)
- {
- return getType(names.indexOf(name));
- }
-
-
- /**
- * Get the value of an attribute (by name).
- *
- * @param name The attribute name.
- * @see org.xml.sax.AttributeList#getValue(java.lang.String)
- */
- public String getValue (String name)
- {
- return getValue(names.indexOf(name));
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- Vector names = new Vector();
- Vector types = new Vector();
- Vector values = new Vector();
-
-}
-
-// end of AttributeListImpl.java
+// SAX default implementation for AttributeList. +// http://www.saxproject.org +// No warranty; no copyright -- use this as you will. +// $Id: AttributeListImpl.java,v 1.3.2.3 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import org.xml.sax.AttributeList; + +import java.util.Vector; + + +/** + * Default implementation for AttributeList. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>AttributeList implements the deprecated SAX1 {@link + * org.xml.sax.AttributeList AttributeList} interface, and has been + * replaced by the new SAX2 {@link org.xml.sax.helpers.AttributesImpl + * AttributesImpl} interface.</p> + * + * <p>This class provides a convenience implementation of the SAX + * {@link org.xml.sax.AttributeList AttributeList} interface. This + * implementation is useful both for SAX parser writers, who can use + * it to provide attributes to the application, and for SAX application + * writers, who can use it to create a persistent copy of an element's + * attribute specifications:</p> + * + * <pre> + * private AttributeList myatts; + * + * public void startElement (String name, AttributeList atts) + * { + * // create a persistent copy of the attribute list + * // for use outside this method + * myatts = new AttributeListImpl(atts); + * [...] + * } + * </pre> + * + * <p>Please note that SAX parsers are not required to use this + * class to provide an implementation of AttributeList; it is + * supplied only as an optional convenience. In particular, + * parser writers are encouraged to invent more efficient + * implementations.</p> + * + * @deprecated This class implements a deprecated interface, + * {@link org.xml.sax.AttributeList AttributeList}; + * that interface has been replaced by + * {@link org.xml.sax.Attributes Attributes}, + * which is implemented in the + * {@link org.xml.sax.helpers.AttributesImpl + * AttributesImpl} helper class. + * @since SAX 1.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.AttributeList + * @see org.xml.sax.DocumentHandler#startElement + */ +public class AttributeListImpl implements AttributeList +{ + + /** + * Create an empty attribute list. + * + * <p>This constructor is most useful for parser writers, who + * will use it to create a single, reusable attribute list that + * can be reset with the clear method between elements.</p> + * + * @see #addAttribute + * @see #clear + */ + public AttributeListImpl () + { + } + + + /** + * Construct a persistent copy of an existing attribute list. + * + * <p>This constructor is most useful for application writers, + * who will use it to create a persistent copy of an existing + * attribute list.</p> + * + * @param atts The attribute list to copy + * @see org.xml.sax.DocumentHandler#startElement + */ + public AttributeListImpl (AttributeList atts) + { + setAttributeList(atts); + } + + + + //////////////////////////////////////////////////////////////////// + // Methods specific to this class. + //////////////////////////////////////////////////////////////////// + + + /** + * Set the attribute list, discarding previous contents. + * + * <p>This method allows an application writer to reuse an + * attribute list easily.</p> + * + * @param atts The attribute list to copy. + */ + public void setAttributeList (AttributeList atts) + { + int count = atts.getLength(); + + clear(); + + for (int i = 0; i < count; i++) { + addAttribute(atts.getName(i), atts.getType(i), atts.getValue(i)); + } + } + + + /** + * Add an attribute to an attribute list. + * + * <p>This method is provided for SAX parser writers, to allow them + * to build up an attribute list incrementally before delivering + * it to the application.</p> + * + * @param name The attribute name. + * @param type The attribute type ("NMTOKEN" for an enumeration). + * @param value The attribute value (must not be null). + * @see #removeAttribute + * @see org.xml.sax.DocumentHandler#startElement + */ + public void addAttribute (String name, String type, String value) + { + names.addElement(name); + types.addElement(type); + values.addElement(value); + } + + + /** + * Remove an attribute from the list. + * + * <p>SAX application writers can use this method to filter an + * attribute out of an AttributeList. Note that invoking this + * method will change the length of the attribute list and + * some of the attribute's indices.</p> + * + * <p>If the requested attribute is not in the list, this is + * a no-op.</p> + * + * @param name The attribute name. + * @see #addAttribute + */ + public void removeAttribute (String name) + { + int i = names.indexOf(name); + + if (i >= 0) { + names.removeElementAt(i); + types.removeElementAt(i); + values.removeElementAt(i); + } + } + + + /** + * Clear the attribute list. + * + * <p>SAX parser writers can use this method to reset the attribute + * list between DocumentHandler.startElement events. Normally, + * it will make sense to reuse the same AttributeListImpl object + * rather than allocating a new one each time.</p> + * + * @see org.xml.sax.DocumentHandler#startElement + */ + public void clear () + { + names.removeAllElements(); + types.removeAllElements(); + values.removeAllElements(); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.AttributeList + //////////////////////////////////////////////////////////////////// + + + /** + * Return the number of attributes in the list. + * + * @return The number of attributes in the list. + * @see org.xml.sax.AttributeList#getLength + */ + public int getLength () + { + return names.size(); + } + + + /** + * Get the name of an attribute (by position). + * + * @param i The position of the attribute in the list. + * @return The attribute name as a string, or null if there + * is no attribute at that position. + * @see org.xml.sax.AttributeList#getName(int) + */ + public String getName (int i) + { + if (i < 0) { + return null; + } + try { + return (String)names.elementAt(i); + } catch (ArrayIndexOutOfBoundsException e) { + return null; + } + } + + + /** + * Get the type of an attribute (by position). + * + * @param i The position of the attribute in the list. + * @return The attribute type as a string ("NMTOKEN" for an + * enumeration, and "CDATA" if no declaration was + * read), or null if there is no attribute at + * that position. + * @see org.xml.sax.AttributeList#getType(int) + */ + public String getType (int i) + { + if (i < 0) { + return null; + } + try { + return (String)types.elementAt(i); + } catch (ArrayIndexOutOfBoundsException e) { + return null; + } + } + + + /** + * Get the value of an attribute (by position). + * + * @param i The position of the attribute in the list. + * @return The attribute value as a string, or null if + * there is no attribute at that position. + * @see org.xml.sax.AttributeList#getValue(int) + */ + public String getValue (int i) + { + if (i < 0) { + return null; + } + try { + return (String)values.elementAt(i); + } catch (ArrayIndexOutOfBoundsException e) { + return null; + } + } + + + /** + * Get the type of an attribute (by name). + * + * @param name The attribute name. + * @return The attribute type as a string ("NMTOKEN" for an + * enumeration, and "CDATA" if no declaration was + * read). + * @see org.xml.sax.AttributeList#getType(java.lang.String) + */ + public String getType (String name) + { + return getType(names.indexOf(name)); + } + + + /** + * Get the value of an attribute (by name). + * + * @param name The attribute name. + * @see org.xml.sax.AttributeList#getValue(java.lang.String) + */ + public String getValue (String name) + { + return getValue(names.indexOf(name)); + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + Vector names = new Vector(); + Vector types = new Vector(); + Vector values = new Vector(); + +} + +// end of AttributeListImpl.java diff --git a/libjava/org/xml/sax/helpers/AttributesImpl.java b/libjava/org/xml/sax/helpers/AttributesImpl.java index b714f39fdb8..d16cb335664 100644 --- a/libjava/org/xml/sax/helpers/AttributesImpl.java +++ b/libjava/org/xml/sax/helpers/AttributesImpl.java @@ -1,606 +1,620 @@ -// AttributesImpl.java - default implementation of Attributes.
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the public domain.
-
-// $Id: AttributesImpl.java,v 1.2 2001/05/31 16:03:17 garyp Exp $
-
-
-package org.xml.sax.helpers;
-
-import org.xml.sax.Attributes;
-
-
-/**
- * Default implementation of the Attributes interface.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class provides a default implementation of the SAX2
- * {@link org.xml.sax.Attributes Attributes} interface, with the
- * addition of manipulators so that the list can be modified or
- * reused.</p>
- *
- * <p>There are two typical uses of this class:</p>
- *
- * <ol>
- * <li>to take a persistent snapshot of an Attributes object
- * in a {@link org.xml.sax.ContentHandler#startElement startElement} event; or</li>
- * <li>to construct or modify an Attributes object in a SAX2 driver or filter.</li>
- * </ol>
- *
- * <p>This class replaces the now-deprecated SAX1 {@link
- * org.xml.sax.helpers.AttributeListImpl AttributeListImpl}
- * class; in addition to supporting the updated Attributes
- * interface rather than the deprecated {@link org.xml.sax.AttributeList
- * AttributeList} interface, it also includes a much more efficient
- * implementation using a single array rather than a set of Vectors.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- */
-public class AttributesImpl implements Attributes
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Constructors.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Construct a new, empty AttributesImpl object.
- */
- public AttributesImpl ()
- {
- length = 0;
- data = null;
- }
-
-
- /**
- * Copy an existing Attributes object.
- *
- * <p>This constructor is especially useful inside a
- * {@link org.xml.sax.ContentHandler#startElement startElement} event.</p>
- *
- * @param atts The existing Attributes object.
- */
- public AttributesImpl (Attributes atts)
- {
- setAttributes(atts);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.Attributes.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Return the number of attributes in the list.
- *
- * @return The number of attributes in the list.
- * @see org.xml.sax.Attributes#getLength
- */
- public int getLength ()
- {
- return length;
- }
-
-
- /**
- * Return an attribute's Namespace URI.
- *
- * @param index The attribute's index (zero-based).
- * @return The Namespace URI, the empty string if none is
- * available, or null if the index is out of range.
- * @see org.xml.sax.Attributes#getURI
- */
- public String getURI (int index)
- {
- if (index >= 0 && index < length) {
- return data[index*5];
- } else {
- return null;
- }
- }
-
-
- /**
- * Return an attribute's local name.
- *
- * @param index The attribute's index (zero-based).
- * @return The attribute's local name, the empty string if
- * none is available, or null if the index if out of range.
- * @see org.xml.sax.Attributes#getLocalName
- */
- public String getLocalName (int index)
- {
- if (index >= 0 && index < length) {
- return data[index*5+1];
- } else {
- return null;
- }
- }
-
-
- /**
- * Return an attribute's qualified (prefixed) name.
- *
- * @param index The attribute's index (zero-based).
- * @return The attribute's qualified name, the empty string if
- * none is available, or null if the index is out of bounds.
- * @see org.xml.sax.Attributes#getQName
- */
- public String getQName (int index)
- {
- if (index >= 0 && index < length) {
- return data[index*5+2];
- } else {
- return null;
- }
- }
-
-
- /**
- * Return an attribute's type by index.
- *
- * @param index The attribute's index (zero-based).
- * @return The attribute's type, "CDATA" if the type is unknown, or null
- * if the index is out of bounds.
- * @see org.xml.sax.Attributes#getType(int)
- */
- public String getType (int index)
- {
- if (index >= 0 && index < length) {
- return data[index*5+3];
- } else {
- return null;
- }
- }
-
-
- /**
- * Return an attribute's value by index.
- *
- * @param index The attribute's index (zero-based).
- * @return The attribute's value or null if the index is out of bounds.
- * @see org.xml.sax.Attributes#getValue(int)
- */
- public String getValue (int index)
- {
- if (index >= 0 && index < length) {
- return data[index*5+4];
- } else {
- return null;
- }
- }
-
-
- /**
- * Look up an attribute's index by Namespace name.
- *
- * <p>In many cases, it will be more efficient to look up the name once and
- * use the index query methods rather than using the name query methods
- * repeatedly.</p>
- *
- * @param uri The attribute's Namespace URI, or the empty
- * string if none is available.
- * @param localName The attribute's local name.
- * @return The attribute's index, or -1 if none matches.
- * @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String)
- */
- public int getIndex (String uri, String localName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i].equals(uri) && data[i+1].equals(localName)) {
- return i / 5;
- }
- }
- return -1;
- }
-
-
- /**
- * Look up an attribute's index by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attribute's index, or -1 if none matches.
- * @see org.xml.sax.Attributes#getIndex(java.lang.String)
- */
- public int getIndex (String qName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i+2].equals(qName)) {
- return i / 5;
- }
- }
- return -1;
- }
-
-
- /**
- * Look up an attribute's type by Namespace-qualified name.
- *
- * @param uri The Namespace URI, or the empty string for a name
- * with no explicit Namespace URI.
- * @param localName The local name.
- * @return The attribute's type, or null if there is no
- * matching attribute.
- * @see org.xml.sax.Attributes#getType(java.lang.String,java.lang.String)
- */
- public String getType (String uri, String localName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i].equals(uri) && data[i+1].equals(localName)) {
- return data[i+3];
- }
- }
- return null;
- }
-
-
- /**
- * Look up an attribute's type by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attribute's type, or null if there is no
- * matching attribute.
- * @see org.xml.sax.Attributes#getType(java.lang.String)
- */
- public String getType (String qName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i+2].equals(qName)) {
- return data[i+3];
- }
- }
- return null;
- }
-
-
- /**
- * Look up an attribute's value by Namespace-qualified name.
- *
- * @param uri The Namespace URI, or the empty string for a name
- * with no explicit Namespace URI.
- * @param localName The local name.
- * @return The attribute's value, or null if there is no
- * matching attribute.
- * @see org.xml.sax.Attributes#getValue(java.lang.String,java.lang.String)
- */
- public String getValue (String uri, String localName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i].equals(uri) && data[i+1].equals(localName)) {
- return data[i+4];
- }
- }
- return null;
- }
-
-
- /**
- * Look up an attribute's value by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attribute's value, or null if there is no
- * matching attribute.
- * @see org.xml.sax.Attributes#getValue(java.lang.String)
- */
- public String getValue (String qName)
- {
- int max = length * 5;
- for (int i = 0; i < max; i += 5) {
- if (data[i+2].equals(qName)) {
- return data[i+4];
- }
- }
- return null;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Manipulators.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Clear the attribute list for reuse.
- *
- * <p>Note that no memory is actually freed by this call:
- * the current arrays are kept so that they can be
- * reused.</p>
- */
- public void clear ()
- {
- length = 0;
- }
-
-
- /**
- * Copy an entire Attributes object.
- *
- * <p>It may be more efficient to reuse an existing object
- * rather than constantly allocating new ones.</p>
- *
- * @param atts The attributes to copy.
- */
- public void setAttributes (Attributes atts)
- {
- clear();
- length = atts.getLength();
- data = new String[length*5];
- for (int i = 0; i < length; i++) {
- data[i*5] = atts.getURI(i);
- data[i*5+1] = atts.getLocalName(i);
- data[i*5+2] = atts.getQName(i);
- data[i*5+3] = atts.getType(i);
- data[i*5+4] = atts.getValue(i);
- }
- }
-
-
- /**
- * Add an attribute to the end of the list.
- *
- * <p>For the sake of speed, this method does no checking
- * to see if the attribute is already in the list: that is
- * the responsibility of the application.</p>
- *
- * @param uri The Namespace URI, or the empty string if
- * none is available or Namespace processing is not
- * being performed.
- * @param localName The local name, or the empty string if
- * Namespace processing is not being performed.
- * @param qName The qualified (prefixed) name, or the empty string
- * if qualified names are not available.
- * @param type The attribute type as a string.
- * @param value The attribute value.
- */
- public void addAttribute (String uri, String localName, String qName,
- String type, String value)
- {
- ensureCapacity(length+1);
- data[length*5] = uri;
- data[length*5+1] = localName;
- data[length*5+2] = qName;
- data[length*5+3] = type;
- data[length*5+4] = value;
- length++;
- }
-
-
- /**
- * Set an attribute in the list.
- *
- * <p>For the sake of speed, this method does no checking
- * for name conflicts or well-formedness: such checks are the
- * responsibility of the application.</p>
- *
- * @param index The index of the attribute (zero-based).
- * @param uri The Namespace URI, or the empty string if
- * none is available or Namespace processing is not
- * being performed.
- * @param localName The local name, or the empty string if
- * Namespace processing is not being performed.
- * @param qName The qualified name, or the empty string
- * if qualified names are not available.
- * @param type The attribute type as a string.
- * @param value The attribute value.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setAttribute (int index, String uri, String localName,
- String qName, String type, String value)
- {
- if (index >= 0 && index < length) {
- data[index*5] = uri;
- data[index*5+1] = localName;
- data[index*5+2] = qName;
- data[index*5+3] = type;
- data[index*5+4] = value;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Remove an attribute from the list.
- *
- * @param index The index of the attribute (zero-based).
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void removeAttribute (int index)
- {
- if (index >= 0 && index < length) {
- data[index*5] = null;
- data[index*5+1] = null;
- data[index*5+2] = null;
- data[index*5+3] = null;
- data[index*5+4] = null;
- if (index < length - 1) {
- System.arraycopy(data, (index+1)*5, data, index*5,
- (length-index-1)*5);
- }
- length--;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Set the Namespace URI of a specific attribute.
- *
- * @param index The index of the attribute (zero-based).
- * @param uri The attribute's Namespace URI, or the empty
- * string for none.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setURI (int index, String uri)
- {
- if (index >= 0 && index < length) {
- data[index*5] = uri;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Set the local name of a specific attribute.
- *
- * @param index The index of the attribute (zero-based).
- * @param localName The attribute's local name, or the empty
- * string for none.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setLocalName (int index, String localName)
- {
- if (index >= 0 && index < length) {
- data[index*5+1] = localName;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Set the qualified name of a specific attribute.
- *
- * @param index The index of the attribute (zero-based).
- * @param qName The attribute's qualified name, or the empty
- * string for none.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setQName (int index, String qName)
- {
- if (index >= 0 && index < length) {
- data[index*5+2] = qName;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Set the type of a specific attribute.
- *
- * @param index The index of the attribute (zero-based).
- * @param type The attribute's type.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setType (int index, String type)
- {
- if (index >= 0 && index < length) {
- data[index*5+3] = type;
- } else {
- badIndex(index);
- }
- }
-
-
- /**
- * Set the value of a specific attribute.
- *
- * @param index The index of the attribute (zero-based).
- * @param value The attribute's value.
- * @exception java.lang.ArrayIndexOutOfBoundsException When the
- * supplied index does not point to an attribute
- * in the list.
- */
- public void setValue (int index, String value)
- {
- if (index >= 0 && index < length) {
- data[index*5+4] = value;
- } else {
- badIndex(index);
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal methods.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Ensure the internal array's capacity.
- *
- * @param n The minimum number of attributes that the array must
- * be able to hold.
- */
- private void ensureCapacity (int n)
- {
- if (n > 0 && data == null) {
- data = new String[25];
- }
-
- int max = data.length;
- if (max >= n * 5) {
- return;
- }
-
-
- while (max < n * 5) {
- max *= 2;
- }
- String newData[] = new String[max];
- System.arraycopy(data, 0, newData, 0, length*5);
- data = newData;
- }
-
-
- /**
- * Report a bad array index in a manipulator.
- *
- * @param index The index to report.
- * @exception java.lang.ArrayIndexOutOfBoundsException Always.
- */
- private void badIndex (int index)
- throws ArrayIndexOutOfBoundsException
- {
- String msg =
- "Attempt to modify attribute at illegal index: " + index;
- throw new ArrayIndexOutOfBoundsException(msg);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- int length;
- String data [];
-
-}
-
-// end of AttributesImpl.java
-
+// AttributesImpl.java - default implementation of Attributes. +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the public domain. + +// $Id: AttributesImpl.java,v 1.6.2.3 2002/01/29 21:34:14 dbrownell Exp $ + + +package org.xml.sax.helpers; + +import org.xml.sax.Attributes; + + +/** + * Default implementation of the Attributes interface. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class provides a default implementation of the SAX2 + * {@link org.xml.sax.Attributes Attributes} interface, with the + * addition of manipulators so that the list can be modified or + * reused.</p> + * + * <p>There are two typical uses of this class:</p> + * + * <ol> + * <li>to take a persistent snapshot of an Attributes object + * in a {@link org.xml.sax.ContentHandler#startElement startElement} event; or</li> + * <li>to construct or modify an Attributes object in a SAX2 driver or filter.</li> + * </ol> + * + * <p>This class replaces the now-deprecated SAX1 {@link + * org.xml.sax.helpers.AttributeListImpl AttributeListImpl} + * class; in addition to supporting the updated Attributes + * interface rather than the deprecated {@link org.xml.sax.AttributeList + * AttributeList} interface, it also includes a much more efficient + * implementation using a single array rather than a set of Vectors.</p> + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + */ +public class AttributesImpl implements Attributes +{ + + + //////////////////////////////////////////////////////////////////// + // Constructors. + //////////////////////////////////////////////////////////////////// + + + /** + * Construct a new, empty AttributesImpl object. + */ + public AttributesImpl () + { + length = 0; + data = null; + } + + + /** + * Copy an existing Attributes object. + * + * <p>This constructor is especially useful inside a + * {@link org.xml.sax.ContentHandler#startElement startElement} event.</p> + * + * @param atts The existing Attributes object. + */ + public AttributesImpl (Attributes atts) + { + setAttributes(atts); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.Attributes. + //////////////////////////////////////////////////////////////////// + + + /** + * Return the number of attributes in the list. + * + * @return The number of attributes in the list. + * @see org.xml.sax.Attributes#getLength + */ + public int getLength () + { + return length; + } + + + /** + * Return an attribute's Namespace URI. + * + * @param index The attribute's index (zero-based). + * @return The Namespace URI, the empty string if none is + * available, or null if the index is out of range. + * @see org.xml.sax.Attributes#getURI + */ + public String getURI (int index) + { + if (index >= 0 && index < length) { + return data[index*5]; + } else { + return null; + } + } + + + /** + * Return an attribute's local name. + * + * @param index The attribute's index (zero-based). + * @return The attribute's local name, the empty string if + * none is available, or null if the index if out of range. + * @see org.xml.sax.Attributes#getLocalName + */ + public String getLocalName (int index) + { + if (index >= 0 && index < length) { + return data[index*5+1]; + } else { + return null; + } + } + + + /** + * Return an attribute's qualified (prefixed) name. + * + * @param index The attribute's index (zero-based). + * @return The attribute's qualified name, the empty string if + * none is available, or null if the index is out of bounds. + * @see org.xml.sax.Attributes#getQName + */ + public String getQName (int index) + { + if (index >= 0 && index < length) { + return data[index*5+2]; + } else { + return null; + } + } + + + /** + * Return an attribute's type by index. + * + * @param index The attribute's index (zero-based). + * @return The attribute's type, "CDATA" if the type is unknown, or null + * if the index is out of bounds. + * @see org.xml.sax.Attributes#getType(int) + */ + public String getType (int index) + { + if (index >= 0 && index < length) { + return data[index*5+3]; + } else { + return null; + } + } + + + /** + * Return an attribute's value by index. + * + * @param index The attribute's index (zero-based). + * @return The attribute's value or null if the index is out of bounds. + * @see org.xml.sax.Attributes#getValue(int) + */ + public String getValue (int index) + { + if (index >= 0 && index < length) { + return data[index*5+4]; + } else { + return null; + } + } + + + /** + * Look up an attribute's index by Namespace name. + * + * <p>In many cases, it will be more efficient to look up the name once and + * use the index query methods rather than using the name query methods + * repeatedly.</p> + * + * @param uri The attribute's Namespace URI, or the empty + * string if none is available. + * @param localName The attribute's local name. + * @return The attribute's index, or -1 if none matches. + * @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String) + */ + public int getIndex (String uri, String localName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i].equals(uri) && data[i+1].equals(localName)) { + return i / 5; + } + } + return -1; + } + + + /** + * Look up an attribute's index by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attribute's index, or -1 if none matches. + * @see org.xml.sax.Attributes#getIndex(java.lang.String) + */ + public int getIndex (String qName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i+2].equals(qName)) { + return i / 5; + } + } + return -1; + } + + + /** + * Look up an attribute's type by Namespace-qualified name. + * + * @param uri The Namespace URI, or the empty string for a name + * with no explicit Namespace URI. + * @param localName The local name. + * @return The attribute's type, or null if there is no + * matching attribute. + * @see org.xml.sax.Attributes#getType(java.lang.String,java.lang.String) + */ + public String getType (String uri, String localName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i].equals(uri) && data[i+1].equals(localName)) { + return data[i+3]; + } + } + return null; + } + + + /** + * Look up an attribute's type by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attribute's type, or null if there is no + * matching attribute. + * @see org.xml.sax.Attributes#getType(java.lang.String) + */ + public String getType (String qName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i+2].equals(qName)) { + return data[i+3]; + } + } + return null; + } + + + /** + * Look up an attribute's value by Namespace-qualified name. + * + * @param uri The Namespace URI, or the empty string for a name + * with no explicit Namespace URI. + * @param localName The local name. + * @return The attribute's value, or null if there is no + * matching attribute. + * @see org.xml.sax.Attributes#getValue(java.lang.String,java.lang.String) + */ + public String getValue (String uri, String localName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i].equals(uri) && data[i+1].equals(localName)) { + return data[i+4]; + } + } + return null; + } + + + /** + * Look up an attribute's value by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attribute's value, or null if there is no + * matching attribute. + * @see org.xml.sax.Attributes#getValue(java.lang.String) + */ + public String getValue (String qName) + { + int max = length * 5; + for (int i = 0; i < max; i += 5) { + if (data[i+2].equals(qName)) { + return data[i+4]; + } + } + return null; + } + + + + //////////////////////////////////////////////////////////////////// + // Manipulators. + //////////////////////////////////////////////////////////////////// + + + /** + * Clear the attribute list for reuse. + * + * <p>Note that little memory is freed by this call: + * the current array is kept so it can be + * reused.</p> + */ + public void clear () + { + if (data != null) { + for (int i = 0; i < (length * 5); i++) + data [i] = null; + } + length = 0; + } + + + /** + * Copy an entire Attributes object. + * + * <p>It may be more efficient to reuse an existing object + * rather than constantly allocating new ones.</p> + * + * @param atts The attributes to copy. + */ + public void setAttributes (Attributes atts) + { + clear(); + length = atts.getLength(); + if (length > 0) { + data = new String[length*5]; + for (int i = 0; i < length; i++) { + data[i*5] = atts.getURI(i); + data[i*5+1] = atts.getLocalName(i); + data[i*5+2] = atts.getQName(i); + data[i*5+3] = atts.getType(i); + data[i*5+4] = atts.getValue(i); + } + } + } + + + /** + * Add an attribute to the end of the list. + * + * <p>For the sake of speed, this method does no checking + * to see if the attribute is already in the list: that is + * the responsibility of the application.</p> + * + * @param uri The Namespace URI, or the empty string if + * none is available or Namespace processing is not + * being performed. + * @param localName The local name, or the empty string if + * Namespace processing is not being performed. + * @param qName The qualified (prefixed) name, or the empty string + * if qualified names are not available. + * @param type The attribute type as a string. + * @param value The attribute value. + */ + public void addAttribute (String uri, String localName, String qName, + String type, String value) + { + ensureCapacity(length+1); + data[length*5] = uri; + data[length*5+1] = localName; + data[length*5+2] = qName; + data[length*5+3] = type; + data[length*5+4] = value; + length++; + } + + + /** + * Set an attribute in the list. + * + * <p>For the sake of speed, this method does no checking + * for name conflicts or well-formedness: such checks are the + * responsibility of the application.</p> + * + * @param index The index of the attribute (zero-based). + * @param uri The Namespace URI, or the empty string if + * none is available or Namespace processing is not + * being performed. + * @param localName The local name, or the empty string if + * Namespace processing is not being performed. + * @param qName The qualified name, or the empty string + * if qualified names are not available. + * @param type The attribute type as a string. + * @param value The attribute value. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setAttribute (int index, String uri, String localName, + String qName, String type, String value) + { + if (index >= 0 && index < length) { + data[index*5] = uri; + data[index*5+1] = localName; + data[index*5+2] = qName; + data[index*5+3] = type; + data[index*5+4] = value; + } else { + badIndex(index); + } + } + + + /** + * Remove an attribute from the list. + * + * @param index The index of the attribute (zero-based). + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void removeAttribute (int index) + { + if (index >= 0 && index < length) { + if (index < length - 1) { + System.arraycopy(data, (index+1)*5, data, index*5, + (length-index-1)*5); + } + index = (length - 1) * 5; + data [index++] = null; + data [index++] = null; + data [index++] = null; + data [index++] = null; + data [index] = null; + length--; + } else { + badIndex(index); + } + } + + + /** + * Set the Namespace URI of a specific attribute. + * + * @param index The index of the attribute (zero-based). + * @param uri The attribute's Namespace URI, or the empty + * string for none. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setURI (int index, String uri) + { + if (index >= 0 && index < length) { + data[index*5] = uri; + } else { + badIndex(index); + } + } + + + /** + * Set the local name of a specific attribute. + * + * @param index The index of the attribute (zero-based). + * @param localName The attribute's local name, or the empty + * string for none. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setLocalName (int index, String localName) + { + if (index >= 0 && index < length) { + data[index*5+1] = localName; + } else { + badIndex(index); + } + } + + + /** + * Set the qualified name of a specific attribute. + * + * @param index The index of the attribute (zero-based). + * @param qName The attribute's qualified name, or the empty + * string for none. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setQName (int index, String qName) + { + if (index >= 0 && index < length) { + data[index*5+2] = qName; + } else { + badIndex(index); + } + } + + + /** + * Set the type of a specific attribute. + * + * @param index The index of the attribute (zero-based). + * @param type The attribute's type. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setType (int index, String type) + { + if (index >= 0 && index < length) { + data[index*5+3] = type; + } else { + badIndex(index); + } + } + + + /** + * Set the value of a specific attribute. + * + * @param index The index of the attribute (zero-based). + * @param value The attribute's value. + * @exception java.lang.ArrayIndexOutOfBoundsException When the + * supplied index does not point to an attribute + * in the list. + */ + public void setValue (int index, String value) + { + if (index >= 0 && index < length) { + data[index*5+4] = value; + } else { + badIndex(index); + } + } + + + + //////////////////////////////////////////////////////////////////// + // Internal methods. + //////////////////////////////////////////////////////////////////// + + + /** + * Ensure the internal array's capacity. + * + * @param n The minimum number of attributes that the array must + * be able to hold. + */ + private void ensureCapacity (int n) { + if (n <= 0) { + return; + } + int max; + if (data == null || data.length == 0) { + max = 25; + } + else if (data.length >= n * 5) { + return; + } + else { + max = data.length; + } + while (max < n * 5) { + max *= 2; + } + + String newData[] = new String[max]; + if (length > 0) { + System.arraycopy(data, 0, newData, 0, length*5); + } + data = newData; + } + + + /** + * Report a bad array index in a manipulator. + * + * @param index The index to report. + * @exception java.lang.ArrayIndexOutOfBoundsException Always. + */ + private void badIndex (int index) + throws ArrayIndexOutOfBoundsException + { + String msg = + "Attempt to modify attribute at illegal index: " + index; + throw new ArrayIndexOutOfBoundsException(msg); + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + int length; + String data []; + +} + +// end of AttributesImpl.java + diff --git a/libjava/org/xml/sax/helpers/DefaultHandler.java b/libjava/org/xml/sax/helpers/DefaultHandler.java index 957d44d882e..873e754a1a5 100644 --- a/libjava/org/xml/sax/helpers/DefaultHandler.java +++ b/libjava/org/xml/sax/helpers/DefaultHandler.java @@ -1,447 +1,468 @@ -// DefaultHandler.java - default implementation of the core handlers.
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the public domain.
-
-// $Id: DefaultHandler.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import org.xml.sax.InputSource;
-import org.xml.sax.Locator;
-import org.xml.sax.Attributes;
-import org.xml.sax.EntityResolver;
-import org.xml.sax.DTDHandler;
-import org.xml.sax.ContentHandler;
-import org.xml.sax.ErrorHandler;
-import org.xml.sax.SAXException;
-import org.xml.sax.SAXParseException;
-
-
-/**
- * Default base class for SAX2 event handlers.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class is available as a convenience base class for SAX2
- * applications: it provides default implementations for all of the
- * callbacks in the four core SAX2 handler classes:</p>
- *
- * <ul>
- * <li>{@link org.xml.sax.EntityResolver EntityResolver}</li>
- * <li>{@link org.xml.sax.DTDHandler DTDHandler}</li>
- * <li>{@link org.xml.sax.ContentHandler ContentHandler}</li>
- * <li>{@link org.xml.sax.ErrorHandler ErrorHandler}</li>
- * </ul>
- *
- * <p>Application writers can extend this class when they need to
- * implement only part of an interface; parser writers can
- * instantiate this class to provide default handlers when the
- * application has not supplied its own.</p>
- *
- * <p>This class replaces the deprecated SAX1
- * {@link org.xml.sax.HandlerBase HandlerBase} class.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.EntityResolver
- * @see org.xml.sax.DTDHandler
- * @see org.xml.sax.ContentHandler
- * @see org.xml.sax.ErrorHandler
- */
-public class DefaultHandler
- implements EntityResolver, DTDHandler, ContentHandler, ErrorHandler
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Default implementation of the EntityResolver interface.
- ////////////////////////////////////////////////////////////////////
-
- /**
- * Resolve an external entity.
- *
- * <p>Always return null, so that the parser will use the system
- * identifier provided in the XML document. This method implements
- * the SAX default behaviour: application writers can override it
- * in a subclass to do special translations such as catalog lookups
- * or URI redirection.</p>
- *
- * @param publicId The public identifier, or null if none is
- * available.
- * @param systemId The system identifier provided in the XML
- * document.
- * @return The new input source, or null to require the
- * default behaviour.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.EntityResolver#resolveEntity
- */
- public InputSource resolveEntity (String publicId, String systemId)
- throws SAXException
- {
- return null;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Default implementation of DTDHandler interface.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Receive notification of a notation declaration.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass if they wish to keep track of the notations
- * declared in a document.</p>
- *
- * @param name The notation name.
- * @param publicId The notation public identifier, or null if not
- * available.
- * @param systemId The notation system identifier.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.DTDHandler#notationDecl
- */
- public void notationDecl (String name, String publicId, String systemId)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of an unparsed entity declaration.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to keep track of the unparsed entities
- * declared in a document.</p>
- *
- * @param name The entity name.
- * @param publicId The entity public identifier, or null if not
- * available.
- * @param systemId The entity system identifier.
- * @param notationName The name of the associated notation.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.DTDHandler#unparsedEntityDecl
- */
- public void unparsedEntityDecl (String name, String publicId,
- String systemId, String notationName)
- throws SAXException
- {
- // no op
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Default implementation of ContentHandler interface.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Receive a Locator object for document events.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass if they wish to store the locator for use
- * with other document events.</p>
- *
- * @param locator A locator for all SAX document events.
- * @see org.xml.sax.ContentHandler#setDocumentLocator
- * @see org.xml.sax.Locator
- */
- public void setDocumentLocator (Locator locator)
- {
- // no op
- }
-
-
- /**
- * Receive notification of the beginning of the document.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the beginning
- * of a document (such as allocating the root node of a tree or
- * creating an output file).</p>
- *
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#startDocument
- */
- public void startDocument ()
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of the end of the document.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the end
- * of a document (such as finalising a tree or closing an output
- * file).</p>
- *
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#endDocument
- */
- public void endDocument ()
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of the start of a Namespace mapping.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the start of
- * each Namespace prefix scope (such as storing the prefix mapping).</p>
- *
- * @param prefix The Namespace prefix being declared.
- * @param uri The Namespace URI mapped to the prefix.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#startPrefixMapping
- */
- public void startPrefixMapping (String prefix, String uri)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of the end of a Namespace mapping.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the end of
- * each prefix mapping.</p>
- *
- * @param prefix The Namespace prefix being declared.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#endPrefixMapping
- */
- public void endPrefixMapping (String prefix)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of the start of an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the start of
- * each element (such as allocating a new tree node or writing
- * output to a file).</p>
- *
- * @param name The element type name.
- * @param attributes The specified or defaulted attributes.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#startElement
- */
- public void startElement (String uri, String localName,
- String qName, Attributes attributes)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of the end of an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions at the end of
- * each element (such as finalising a tree node or writing
- * output to a file).</p>
- *
- * @param name The element type name.
- * @param attributes The specified or defaulted attributes.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#endElement
- */
- public void endElement (String uri, String localName, String qName)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of character data inside an element.
- *
- * <p>By default, do nothing. Application writers may override this
- * method to take specific actions for each chunk of character data
- * (such as adding the data to a node or buffer, or printing it to
- * a file).</p>
- *
- * @param ch The characters.
- * @param start The start position in the character array.
- * @param length The number of characters to use from the
- * character array.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#characters
- */
- public void characters (char ch[], int start, int length)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of ignorable whitespace in element content.
- *
- * <p>By default, do nothing. Application writers may override this
- * method to take specific actions for each chunk of ignorable
- * whitespace (such as adding data to a node or buffer, or printing
- * it to a file).</p>
- *
- * @param ch The whitespace characters.
- * @param start The start position in the character array.
- * @param length The number of characters to use from the
- * character array.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#ignorableWhitespace
- */
- public void ignorableWhitespace (char ch[], int start, int length)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of a processing instruction.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions for each
- * processing instruction, such as setting status variables or
- * invoking other methods.</p>
- *
- * @param target The processing instruction target.
- * @param data The processing instruction data, or null if
- * none is supplied.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#processingInstruction
- */
- public void processingInstruction (String target, String data)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of a skipped entity.
- *
- * <p>By default, do nothing. Application writers may override this
- * method in a subclass to take specific actions for each
- * processing instruction, such as setting status variables or
- * invoking other methods.</p>
- *
- * @param name The name of the skipped entity.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ContentHandler#processingInstruction
- */
- public void skippedEntity (String name)
- throws SAXException
- {
- // no op
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Default implementation of the ErrorHandler interface.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Receive notification of a parser warning.
- *
- * <p>The default implementation does nothing. Application writers
- * may override this method in a subclass to take specific actions
- * for each warning, such as inserting the message in a log file or
- * printing it to the console.</p>
- *
- * @param e The warning information encoded as an exception.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ErrorHandler#warning
- * @see org.xml.sax.SAXParseException
- */
- public void warning (SAXParseException e)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Receive notification of a recoverable parser error.
- *
- * <p>The default implementation does nothing. Application writers
- * may override this method in a subclass to take specific actions
- * for each error, such as inserting the message in a log file or
- * printing it to the console.</p>
- *
- * @param e The warning information encoded as an exception.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ErrorHandler#warning
- * @see org.xml.sax.SAXParseException
- */
- public void error (SAXParseException e)
- throws SAXException
- {
- // no op
- }
-
-
- /**
- * Report a fatal XML parsing error.
- *
- * <p>The default implementation throws a SAXParseException.
- * Application writers may override this method in a subclass if
- * they need to take specific actions for each fatal error (such as
- * collecting all of the errors into a single report): in any case,
- * the application must stop all regular processing when this
- * method is invoked, since the document is no longer reliable, and
- * the parser may no longer report parsing events.</p>
- *
- * @param e The error information encoded as an exception.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @see org.xml.sax.ErrorHandler#fatalError
- * @see org.xml.sax.SAXParseException
- */
- public void fatalError (SAXParseException e)
- throws SAXException
- {
- throw e;
- }
-
-}
-
-// end of DefaultHandler.java
+// DefaultHandler.java - default implementation of the core handlers. +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the public domain. + +// $Id: DefaultHandler.java,v 1.5.2.3 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.io.IOException; + +import org.xml.sax.InputSource; +import org.xml.sax.Locator; +import org.xml.sax.Attributes; +import org.xml.sax.EntityResolver; +import org.xml.sax.DTDHandler; +import org.xml.sax.ContentHandler; +import org.xml.sax.ErrorHandler; +import org.xml.sax.SAXException; +import org.xml.sax.SAXParseException; + + +/** + * Default base class for SAX2 event handlers. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class is available as a convenience base class for SAX2 + * applications: it provides default implementations for all of the + * callbacks in the four core SAX2 handler classes:</p> + * + * <ul> + * <li>{@link org.xml.sax.EntityResolver EntityResolver}</li> + * <li>{@link org.xml.sax.DTDHandler DTDHandler}</li> + * <li>{@link org.xml.sax.ContentHandler ContentHandler}</li> + * <li>{@link org.xml.sax.ErrorHandler ErrorHandler}</li> + * </ul> + * + * <p>Application writers can extend this class when they need to + * implement only part of an interface; parser writers can + * instantiate this class to provide default handlers when the + * application has not supplied its own.</p> + * + * <p>This class replaces the deprecated SAX1 + * {@link org.xml.sax.HandlerBase HandlerBase} class.</p> + * + * @since SAX 2.0 + * @author David Megginson, + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.EntityResolver + * @see org.xml.sax.DTDHandler + * @see org.xml.sax.ContentHandler + * @see org.xml.sax.ErrorHandler + */ +public class DefaultHandler + implements EntityResolver, DTDHandler, ContentHandler, ErrorHandler +{ + + + //////////////////////////////////////////////////////////////////// + // Default implementation of the EntityResolver interface. + //////////////////////////////////////////////////////////////////// + + /** + * Resolve an external entity. + * + * <p>Always return null, so that the parser will use the system + * identifier provided in the XML document. This method implements + * the SAX default behaviour: application writers can override it + * in a subclass to do special translations such as catalog lookups + * or URI redirection.</p> + * + * @param publicId The public identifer, or null if none is + * available. + * @param systemId The system identifier provided in the XML + * document. + * @return The new input source, or null to require the + * default behaviour. + * @exception java.io.IOException If there is an error setting + * up the new input source. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.EntityResolver#resolveEntity + */ + public InputSource resolveEntity (String publicId, String systemId) + throws IOException, SAXException + { + return null; + } + + + + //////////////////////////////////////////////////////////////////// + // Default implementation of DTDHandler interface. + //////////////////////////////////////////////////////////////////// + + + /** + * Receive notification of a notation declaration. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass if they wish to keep track of the notations + * declared in a document.</p> + * + * @param name The notation name. + * @param publicId The notation public identifier, or null if not + * available. + * @param systemId The notation system identifier. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.DTDHandler#notationDecl + */ + public void notationDecl (String name, String publicId, String systemId) + throws SAXException + { + // no op + } + + + /** + * Receive notification of an unparsed entity declaration. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to keep track of the unparsed entities + * declared in a document.</p> + * + * @param name The entity name. + * @param publicId The entity public identifier, or null if not + * available. + * @param systemId The entity system identifier. + * @param notationName The name of the associated notation. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.DTDHandler#unparsedEntityDecl + */ + public void unparsedEntityDecl (String name, String publicId, + String systemId, String notationName) + throws SAXException + { + // no op + } + + + + //////////////////////////////////////////////////////////////////// + // Default implementation of ContentHandler interface. + //////////////////////////////////////////////////////////////////// + + + /** + * Receive a Locator object for document events. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass if they wish to store the locator for use + * with other document events.</p> + * + * @param locator A locator for all SAX document events. + * @see org.xml.sax.ContentHandler#setDocumentLocator + * @see org.xml.sax.Locator + */ + public void setDocumentLocator (Locator locator) + { + // no op + } + + + /** + * Receive notification of the beginning of the document. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the beginning + * of a document (such as allocating the root node of a tree or + * creating an output file).</p> + * + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#startDocument + */ + public void startDocument () + throws SAXException + { + // no op + } + + + /** + * Receive notification of the end of the document. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the end + * of a document (such as finalising a tree or closing an output + * file).</p> + * + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#endDocument + */ + public void endDocument () + throws SAXException + { + // no op + } + + + /** + * Receive notification of the start of a Namespace mapping. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the start of + * each Namespace prefix scope (such as storing the prefix mapping).</p> + * + * @param prefix The Namespace prefix being declared. + * @param uri The Namespace URI mapped to the prefix. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#startPrefixMapping + */ + public void startPrefixMapping (String prefix, String uri) + throws SAXException + { + // no op + } + + + /** + * Receive notification of the end of a Namespace mapping. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the end of + * each prefix mapping.</p> + * + * @param prefix The Namespace prefix being declared. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#endPrefixMapping + */ + public void endPrefixMapping (String prefix) + throws SAXException + { + // no op + } + + + /** + * Receive notification of the start of an element. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the start of + * each element (such as allocating a new tree node or writing + * output to a file).</p> + * + * @param uri The Namespace URI, or the empty string if the + * element has no Namespace URI or if Namespace + * processing is not being performed. + * @param localName The local name (without prefix), or the + * empty string if Namespace processing is not being + * performed. + * @param qName The qualified name (with prefix), or the + * empty string if qualified names are not available. + * @param atts The attributes attached to the element. If + * there are no attributes, it shall be an empty + * Attributes object. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#startElement + */ + public void startElement (String uri, String localName, + String qName, Attributes attributes) + throws SAXException + { + // no op + } + + + /** + * Receive notification of the end of an element. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions at the end of + * each element (such as finalising a tree node or writing + * output to a file).</p> + * + * @param uri The Namespace URI, or the empty string if the + * element has no Namespace URI or if Namespace + * processing is not being performed. + * @param localName The local name (without prefix), or the + * empty string if Namespace processing is not being + * performed. + * @param qName The qualified name (with prefix), or the + * empty string if qualified names are not available. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#endElement + */ + public void endElement (String uri, String localName, String qName) + throws SAXException + { + // no op + } + + + /** + * Receive notification of character data inside an element. + * + * <p>By default, do nothing. Application writers may override this + * method to take specific actions for each chunk of character data + * (such as adding the data to a node or buffer, or printing it to + * a file).</p> + * + * @param ch The characters. + * @param start The start position in the character array. + * @param length The number of characters to use from the + * character array. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#characters + */ + public void characters (char ch[], int start, int length) + throws SAXException + { + // no op + } + + + /** + * Receive notification of ignorable whitespace in element content. + * + * <p>By default, do nothing. Application writers may override this + * method to take specific actions for each chunk of ignorable + * whitespace (such as adding data to a node or buffer, or printing + * it to a file).</p> + * + * @param ch The whitespace characters. + * @param start The start position in the character array. + * @param length The number of characters to use from the + * character array. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#ignorableWhitespace + */ + public void ignorableWhitespace (char ch[], int start, int length) + throws SAXException + { + // no op + } + + + /** + * Receive notification of a processing instruction. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions for each + * processing instruction, such as setting status variables or + * invoking other methods.</p> + * + * @param target The processing instruction target. + * @param data The processing instruction data, or null if + * none is supplied. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#processingInstruction + */ + public void processingInstruction (String target, String data) + throws SAXException + { + // no op + } + + + /** + * Receive notification of a skipped entity. + * + * <p>By default, do nothing. Application writers may override this + * method in a subclass to take specific actions for each + * processing instruction, such as setting status variables or + * invoking other methods.</p> + * + * @param name The name of the skipped entity. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ContentHandler#processingInstruction + */ + public void skippedEntity (String name) + throws SAXException + { + // no op + } + + + + //////////////////////////////////////////////////////////////////// + // Default implementation of the ErrorHandler interface. + //////////////////////////////////////////////////////////////////// + + + /** + * Receive notification of a parser warning. + * + * <p>The default implementation does nothing. Application writers + * may override this method in a subclass to take specific actions + * for each warning, such as inserting the message in a log file or + * printing it to the console.</p> + * + * @param e The warning information encoded as an exception. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ErrorHandler#warning + * @see org.xml.sax.SAXParseException + */ + public void warning (SAXParseException e) + throws SAXException + { + // no op + } + + + /** + * Receive notification of a recoverable parser error. + * + * <p>The default implementation does nothing. Application writers + * may override this method in a subclass to take specific actions + * for each error, such as inserting the message in a log file or + * printing it to the console.</p> + * + * @param e The warning information encoded as an exception. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ErrorHandler#warning + * @see org.xml.sax.SAXParseException + */ + public void error (SAXParseException e) + throws SAXException + { + // no op + } + + + /** + * Report a fatal XML parsing error. + * + * <p>The default implementation throws a SAXParseException. + * Application writers may override this method in a subclass if + * they need to take specific actions for each fatal error (such as + * collecting all of the errors into a single report): in any case, + * the application must stop all regular processing when this + * method is invoked, since the document is no longer reliable, and + * the parser may no longer report parsing events.</p> + * + * @param e The error information encoded as an exception. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @see org.xml.sax.ErrorHandler#fatalError + * @see org.xml.sax.SAXParseException + */ + public void fatalError (SAXParseException e) + throws SAXException + { + throw e; + } + +} + +// end of DefaultHandler.java diff --git a/libjava/org/xml/sax/helpers/LocatorImpl.java b/libjava/org/xml/sax/helpers/LocatorImpl.java index 634044ccff2..4b297eabd9c 100644 --- a/libjava/org/xml/sax/helpers/LocatorImpl.java +++ b/libjava/org/xml/sax/helpers/LocatorImpl.java @@ -1,212 +1,214 @@ -// SAX default implementation for Locator.
-// No warranty; no copyright -- use this as you will.
-// $Id: LocatorImpl.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import org.xml.sax.Locator;
-
-
-/**
- * Provide an optional convenience implementation of Locator.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class is available mainly for application writers, who
- * can use it to make a persistent snapshot of a locator at any
- * point during a document parse:</p>
- *
- * <pre>
- * Locator locator;
- * Locator startloc;
- *
- * public void setLocator (Locator locator)
- * {
- * // note the locator
- * this.locator = locator;
- * }
- *
- * public void startDocument ()
- * {
- * // save the location of the start of the document
- * // for future use.
- * Locator startloc = new LocatorImpl(locator);
- * }
- *</pre>
- *
- * <p>Normally, parser writers will not use this class, since it
- * is more efficient to provide location information only when
- * requested, rather than constantly updating a Locator object.</p>
- *
- * @since SAX 1.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.Locator Locator
- */
-public class LocatorImpl implements Locator
-{
-
-
- /**
- * Zero-argument constructor.
- *
- * <p>This will not normally be useful, since the main purpose
- * of this class is to make a snapshot of an existing Locator.</p>
- */
- public LocatorImpl ()
- {
- }
-
-
- /**
- * Copy constructor.
- *
- * <p>Create a persistent copy of the current state of a locator.
- * When the original locator changes, this copy will still keep
- * the original values (and it can be used outside the scope of
- * DocumentHandler methods).</p>
- *
- * @param locator The locator to copy.
- */
- public LocatorImpl (Locator locator)
- {
- setPublicId(locator.getPublicId());
- setSystemId(locator.getSystemId());
- setLineNumber(locator.getLineNumber());
- setColumnNumber(locator.getColumnNumber());
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.Locator
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Return the saved public identifier.
- *
- * @return The public identifier as a string, or null if none
- * is available.
- * @see org.xml.sax.Locator#getPublicId
- * @see #setPublicId
- */
- public String getPublicId ()
- {
- return publicId;
- }
-
-
- /**
- * Return the saved system identifier.
- *
- * @return The system identifier as a string, or null if none
- * is available.
- * @see org.xml.sax.Locator#getSystemId
- * @see #setSystemId
- */
- public String getSystemId ()
- {
- return systemId;
- }
-
-
- /**
- * Return the saved line number (1-based).
- *
- * @return The line number as an integer, or -1 if none is available.
- * @see org.xml.sax.Locator#getLineNumber
- * @see #setLineNumber
- */
- public int getLineNumber ()
- {
- return lineNumber;
- }
-
-
- /**
- * Return the saved column number (1-based).
- *
- * @return The column number as an integer, or -1 if none is available.
- * @see org.xml.sax.Locator#getColumnNumber
- * @see #setColumnNumber
- */
- public int getColumnNumber ()
- {
- return columnNumber;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Setters for the properties (not in org.xml.sax.Locator)
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the public identifier for this locator.
- *
- * @param publicId The new public identifier, or null
- * if none is available.
- * @see #getPublicId
- */
- public void setPublicId (String publicId)
- {
- this.publicId = publicId;
- }
-
-
- /**
- * Set the system identifier for this locator.
- *
- * @param systemId The new system identifier, or null
- * if none is available.
- * @see #getSystemId
- */
- public void setSystemId (String systemId)
- {
- this.systemId = systemId;
- }
-
-
- /**
- * Set the line number for this locator (1-based).
- *
- * @param lineNumber The line number, or -1 if none is available.
- * @see #getLineNumber
- */
- public void setLineNumber (int lineNumber)
- {
- this.lineNumber = lineNumber;
- }
-
-
- /**
- * Set the column number for this locator (1-based).
- *
- * @param columnNumber The column number, or -1 if none is available.
- * @see #getColumnNumber
- */
- public void setColumnNumber (int columnNumber)
- {
- this.columnNumber = columnNumber;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- private String publicId;
- private String systemId;
- private int lineNumber;
- private int columnNumber;
-
-}
-
-// end of LocatorImpl.java
+// SAX default implementation for Locator. +// http://www.saxproject.org +// No warranty; no copyright -- use this as you will. +// $Id: LocatorImpl.java,v 1.3.2.3 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import org.xml.sax.Locator; + + +/** + * Provide an optional convenience implementation of Locator. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class is available mainly for application writers, who + * can use it to make a persistent snapshot of a locator at any + * point during a document parse:</p> + * + * <pre> + * Locator locator; + * Locator startloc; + * + * public void setLocator (Locator locator) + * { + * // note the locator + * this.locator = locator; + * } + * + * public void startDocument () + * { + * // save the location of the start of the document + * // for future use. + * Locator startloc = new LocatorImpl(locator); + * } + *</pre> + * + * <p>Normally, parser writers will not use this class, since it + * is more efficient to provide location information only when + * requested, rather than constantly updating a Locator object.</p> + * + * @since SAX 1.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.Locator Locator + */ +public class LocatorImpl implements Locator +{ + + + /** + * Zero-argument constructor. + * + * <p>This will not normally be useful, since the main purpose + * of this class is to make a snapshot of an existing Locator.</p> + */ + public LocatorImpl () + { + } + + + /** + * Copy constructor. + * + * <p>Create a persistent copy of the current state of a locator. + * When the original locator changes, this copy will still keep + * the original values (and it can be used outside the scope of + * DocumentHandler methods).</p> + * + * @param locator The locator to copy. + */ + public LocatorImpl (Locator locator) + { + setPublicId(locator.getPublicId()); + setSystemId(locator.getSystemId()); + setLineNumber(locator.getLineNumber()); + setColumnNumber(locator.getColumnNumber()); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.Locator + //////////////////////////////////////////////////////////////////// + + + /** + * Return the saved public identifier. + * + * @return The public identifier as a string, or null if none + * is available. + * @see org.xml.sax.Locator#getPublicId + * @see #setPublicId + */ + public String getPublicId () + { + return publicId; + } + + + /** + * Return the saved system identifier. + * + * @return The system identifier as a string, or null if none + * is available. + * @see org.xml.sax.Locator#getSystemId + * @see #setSystemId + */ + public String getSystemId () + { + return systemId; + } + + + /** + * Return the saved line number (1-based). + * + * @return The line number as an integer, or -1 if none is available. + * @see org.xml.sax.Locator#getLineNumber + * @see #setLineNumber + */ + public int getLineNumber () + { + return lineNumber; + } + + + /** + * Return the saved column number (1-based). + * + * @return The column number as an integer, or -1 if none is available. + * @see org.xml.sax.Locator#getColumnNumber + * @see #setColumnNumber + */ + public int getColumnNumber () + { + return columnNumber; + } + + + + //////////////////////////////////////////////////////////////////// + // Setters for the properties (not in org.xml.sax.Locator) + //////////////////////////////////////////////////////////////////// + + + /** + * Set the public identifier for this locator. + * + * @param publicId The new public identifier, or null + * if none is available. + * @see #getPublicId + */ + public void setPublicId (String publicId) + { + this.publicId = publicId; + } + + + /** + * Set the system identifier for this locator. + * + * @param systemId The new system identifier, or null + * if none is available. + * @see #getSystemId + */ + public void setSystemId (String systemId) + { + this.systemId = systemId; + } + + + /** + * Set the line number for this locator (1-based). + * + * @param lineNumber The line number, or -1 if none is available. + * @see #getLineNumber + */ + public void setLineNumber (int lineNumber) + { + this.lineNumber = lineNumber; + } + + + /** + * Set the column number for this locator (1-based). + * + * @param columnNumber The column number, or -1 if none is available. + * @see #getColumnNumber + */ + public void setColumnNumber (int columnNumber) + { + this.columnNumber = columnNumber; + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + private String publicId; + private String systemId; + private int lineNumber; + private int columnNumber; + +} + +// end of LocatorImpl.java diff --git a/libjava/org/xml/sax/helpers/NamespaceSupport.java b/libjava/org/xml/sax/helpers/NamespaceSupport.java index a4588c3d2c7..917a7f75dce 100644 --- a/libjava/org/xml/sax/helpers/NamespaceSupport.java +++ b/libjava/org/xml/sax/helpers/NamespaceSupport.java @@ -1,689 +1,770 @@ -// NamespaceSupport.java - generic Namespace support for SAX.
-// Written by David Megginson, sax@megginson.com
-// This class is in the Public Domain. NO WARRANTY!
-
-// $Id: NamespaceSupport.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import java.util.EmptyStackException;
-import java.util.Enumeration;
-import java.util.Hashtable;
-import java.util.Vector;
-
-
-/**
- * Encapsulate Namespace logic for use by SAX drivers.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class encapsulates the logic of Namespace processing:
- * it tracks the declarations currently in force for each context
- * and automatically processes qualified XML 1.0 names into their
- * Namespace parts; it can also be used in reverse for generating
- * XML 1.0 from Namespaces.</p>
- *
- * <p>Namespace support objects are reusable, but the reset method
- * must be invoked between each session.</p>
- *
- * <p>Here is a simple session:</p>
- *
- * <pre>
- * String parts[] = new String[3];
- * NamespaceSupport support = new NamespaceSupport();
- *
- * support.pushContext();
- * support.declarePrefix("", "http://www.w3.org/1999/xhtml");
- * support.declarePrefix("dc", "http://www.purl.org/dc#");
- *
- * String parts[] = support.processName("p", parts, false);
- * System.out.println("Namespace URI: " + parts[0]);
- * System.out.println("Local name: " + parts[1]);
- * System.out.println("Raw name: " + parts[2]);
-
- * String parts[] = support.processName("dc:title", parts, false);
- * System.out.println("Namespace URI: " + parts[0]);
- * System.out.println("Local name: " + parts[1]);
- * System.out.println("Raw name: " + parts[2]);
-
- * support.popContext();
- * </pre>
- *
- * <p>Note that this class is optimized for the use case where most
- * elements do not contain Namespace declarations: if the same
- * prefix/URI mapping is repeated for each context (for example), this
- * class will be somewhat less efficient.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- */
-public class NamespaceSupport
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Constants.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * The XML Namespace as a constant.
- *
- * <p>This is the Namespace URI that is automatically mapped
- * to the "xml" prefix.</p>
- */
- public final static String XMLNS =
- "http://www.w3.org/XML/1998/namespace";
-
-
- /**
- * An empty enumeration.
- */
- private final static Enumeration EMPTY_ENUMERATION =
- new Vector().elements();
-
-
- ////////////////////////////////////////////////////////////////////
- // Constructor.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Create a new Namespace support object.
- */
- public NamespaceSupport ()
- {
- reset();
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Context management.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Reset this Namespace support object for reuse.
- *
- * <p>It is necessary to invoke this method before reusing the
- * Namespace support object for a new session.</p>
- */
- public void reset ()
- {
- contexts = new Context[32];
- contextPos = 0;
- contexts[contextPos] = currentContext = new Context();
- currentContext.declarePrefix("xml", XMLNS);
- }
-
-
- /**
- * Start a new Namespace context.
- *
- * <p>Normally, you should push a new context at the beginning
- * of each XML element: the new context will automatically inherit
- * the declarations of its parent context, but it will also keep
- * track of which declarations were made within this context.</p>
- *
- * <p>The Namespace support object always starts with a base context
- * already in force: in this context, only the "xml" prefix is
- * declared.</p>
- *
- * @see #popContext
- */
- public void pushContext ()
- {
- int max = contexts.length;
- contextPos++;
-
- // Extend the array if necessary
- if (contextPos >= max) {
- Context newContexts[] = new Context[max*2];
- System.arraycopy(contexts, 0, newContexts, 0, max);
- max *= 2;
- contexts = newContexts;
- }
-
- // Allocate the context if necessary.
- currentContext = contexts[contextPos];
- if (currentContext == null) {
- contexts[contextPos] = currentContext = new Context();
- }
-
- // Set the parent, if any.
- if (contextPos > 0) {
- currentContext.setParent(contexts[contextPos - 1]);
- }
- }
-
-
- /**
- * Revert to the previous Namespace context.
- *
- * <p>Normally, you should pop the context at the end of each
- * XML element. After popping the context, all Namespace prefix
- * mappings that were previously in force are restored.</p>
- *
- * <p>You must not attempt to declare additional Namespace
- * prefixes after popping a context, unless you push another
- * context first.</p>
- *
- * @see #pushContext
- */
- public void popContext ()
- {
- contextPos--;
- if (contextPos < 0) {
- throw new EmptyStackException();
- }
- currentContext = contexts[contextPos];
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Operations within a context.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Declare a Namespace prefix.
- *
- * <p>This method declares a prefix in the current Namespace
- * context; the prefix will remain in force until this context
- * is popped, unless it is shadowed in a descendant context.</p>
- *
- * <p>To declare a default Namespace, use the empty string. The
- * prefix must not be "xml" or "xmlns".</p>
- *
- * <p>Note that you must <em>not</em> declare a prefix after
- * you've pushed and popped another Namespace.</p>
- *
- * <p>Note that there is an asymmetry in this library: while {@link
- * #getPrefix getPrefix} will not return the default "" prefix,
- * even if you have declared one; to check for a default prefix,
- * you have to look it up explicitly using {@link #getURI getURI}.
- * This asymmetry exists to make it easier to look up prefixes
- * for attribute names, where the default prefix is not allowed.</p>
- *
- * @param prefix The prefix to declare, or null for the empty
- * string.
- * @param uri The Namespace URI to associate with the prefix.
- * @return true if the prefix was legal, false otherwise
- * @see #processName
- * @see #getURI
- * @see #getPrefix
- */
- public boolean declarePrefix (String prefix, String uri)
- {
- if (prefix.equals("xml") || prefix.equals("xmlns")) {
- return false;
- } else {
- currentContext.declarePrefix(prefix, uri);
- return true;
- }
- }
-
-
- /**
- * Process a raw XML 1.0 name.
- *
- * <p>This method processes a raw XML 1.0 name in the current
- * context by removing the prefix and looking it up among the
- * prefixes currently declared. The return value will be the
- * array supplied by the caller, filled in as follows:</p>
- *
- * <dl>
- * <dt>parts[0]</dt>
- * <dd>The Namespace URI, or an empty string if none is
- * in use.</dd>
- * <dt>parts[1]</dt>
- * <dd>The local name (without prefix).</dd>
- * <dt>parts[2]</dt>
- * <dd>The original raw name.</dd>
- * </dl>
- *
- * <p>All of the strings in the array will be internalized. If
- * the raw name has a prefix that has not been declared, then
- * the return value will be null.</p>
- *
- * <p>Note that attribute names are processed differently than
- * element names: an unprefixed element name will received the
- * default Namespace (if any), while an unprefixed element name
- * will not.</p>
- *
- * @param qName The raw XML 1.0 name to be processed.
- * @param parts An array supplied by the caller, capable of
- * holding at least three members.
- * @param isAttribute A flag indicating whether this is an
- * attribute name (true) or an element name (false).
- * @return The supplied array holding three internalized strings
- * representing the Namespace URI (or empty string), the
- * local name, and the raw XML 1.0 name; or null if there
- * is an undeclared prefix.
- * @see #declarePrefix
- * @see java.lang.String#intern */
- public String [] processName (String qName, String parts[],
- boolean isAttribute)
- {
- String myParts[] = currentContext.processName(qName, isAttribute);
- if (myParts == null) {
- return null;
- } else {
- parts[0] = myParts[0];
- parts[1] = myParts[1];
- parts[2] = myParts[2];
- return parts;
- }
- }
-
-
- /**
- * Look up a prefix and get the currently-mapped Namespace URI.
- *
- * <p>This method looks up the prefix in the current context.
- * Use the empty string ("") for the default Namespace.</p>
- *
- * @param prefix The prefix to look up.
- * @return The associated Namespace URI, or null if the prefix
- * is undeclared in this context.
- * @see #getPrefix
- * @see #getPrefixes
- */
- public String getURI (String prefix)
- {
- return currentContext.getURI(prefix);
- }
-
-
- /**
- * Return an enumeration of all prefixes currently declared.
- *
- * <p><strong>Note:</strong> if there is a default prefix, it will not be
- * returned in this enumeration; check for the default prefix
- * using the {@link #getURI getURI} with an argument of "".</p>
- *
- * @return An enumeration of all prefixes declared in the
- * current context except for the empty (default)
- * prefix.
- * @see #getDeclaredPrefixes
- * @see #getURI
- */
- public Enumeration getPrefixes ()
- {
- return currentContext.getPrefixes();
- }
-
-
- /**
- * Return one of the prefixes mapped to a Namespace URI.
- *
- * <p>If more than one prefix is currently mapped to the same
- * URI, this method will make an arbitrary selection; if you
- * want all of the prefixes, use the {@link #getPrefixes}
- * method instead.</p>
- *
- * <p><strong>Note:</strong> this will never return the empty (default) prefix;
- * to check for a default prefix, use the {@link #getURI getURI}
- * method with an argument of "".</p>
- *
- * @param uri The Namespace URI.
- * @param isAttribute true if this prefix is for an attribute
- * (and the default Namespace is not allowed).
- * @return One of the prefixes currently mapped to the URI supplied,
- * or null if none is mapped or if the URI is assigned to
- * the default Namespace.
- * @see #getPrefixes(java.lang.String)
- * @see #getURI
- */
- public String getPrefix (String uri)
- {
- return currentContext.getPrefix(uri);
- }
-
-
- /**
- * Return an enumeration of all prefixes currently declared for a URI.
- *
- * <p>This method returns prefixes mapped to a specific Namespace
- * URI. The xml: prefix will be included. If you want only one
- * prefix that's mapped to the Namespace URI, and you don't care
- * which one you get, use the {@link #getPrefix getPrefix}
- * method instead.</p>
- *
- * <p><strong>Note:</strong> the empty (default) prefix is <em>never</em> included
- * in this enumeration; to check for the presence of a default
- * Namespace, use the {@link #getURI getURI} method with an
- * argument of "".</p>
- *
- * @param uri The Namespace URI.
- * @return An enumeration of all prefixes declared in the
- * current context.
- * @see #getPrefix
- * @see #getDeclaredPrefixes
- * @see #getURI
- */
- public Enumeration getPrefixes (String uri)
- {
- Vector prefixes = new Vector();
- Enumeration allPrefixes = getPrefixes();
- while (allPrefixes.hasMoreElements()) {
- String prefix = (String)allPrefixes.nextElement();
- if (uri.equals(getURI(prefix))) {
- prefixes.addElement(prefix);
- }
- }
- return prefixes.elements();
- }
-
-
- /**
- * Return an enumeration of all prefixes declared in this context.
- *
- * <p>The empty (default) prefix will be included in this
- * enumeration; note that this behaviour differs from that of
- * {@link #getPrefix} and {@link #getPrefixes}.</p>
- *
- * @return An enumeration of all prefixes declared in this
- * context.
- * @see #getPrefixes
- * @see #getURI
- */
- public Enumeration getDeclaredPrefixes ()
- {
- return currentContext.getDeclaredPrefixes();
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- private Context contexts[];
- private Context currentContext;
- private int contextPos;
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal classes.
- ////////////////////////////////////////////////////////////////////
-
- /**
- * Internal class for a single Namespace context.
- *
- * <p>This module caches and reuses Namespace contexts, so the number allocated
- * will be equal to the element depth of the document, not to the total
- * number of elements (i.e. 5-10 rather than tens of thousands).</p>
- */
- final class Context {
-
- /**
- * Create the root-level Namespace context.
- */
- Context ()
- {
- copyTables();
- }
-
-
- /**
- * (Re)set the parent of this Namespace context.
- *
- * @param context The parent Namespace context object.
- */
- void setParent (Context parent)
- {
- this.parent = parent;
- declarations = null;
- prefixTable = parent.prefixTable;
- uriTable = parent.uriTable;
- elementNameTable = parent.elementNameTable;
- attributeNameTable = parent.attributeNameTable;
- defaultNS = parent.defaultNS;
- tablesDirty = false;
- }
-
-
- /**
- * Declare a Namespace prefix for this context.
- *
- * @param prefix The prefix to declare.
- * @param uri The associated Namespace URI.
- * @see org.xml.sax.helpers.NamespaceSupport#declarePrefix
- */
- void declarePrefix (String prefix, String uri)
- {
- // Lazy processing...
- if (!tablesDirty) {
- copyTables();
- }
- if (declarations == null) {
- declarations = new Vector();
- }
-
- prefix = prefix.intern();
- uri = uri.intern();
- if ("".equals(prefix)) {
- if ("".equals(uri)) {
- defaultNS = null;
- } else {
- defaultNS = uri;
- }
- } else {
- prefixTable.put(prefix, uri);
- uriTable.put(uri, prefix); // may wipe out another prefix
- }
- declarations.addElement(prefix);
- }
-
-
- /**
- * Process a raw XML 1.0 name in this context.
- *
- * @param qName The raw XML 1.0 name.
- * @param isAttribute true if this is an attribute name.
- * @return An array of three strings containing the
- * URI part (or empty string), the local part,
- * and the raw name, all internalized, or null
- * if there is an undeclared prefix.
- * @see org.xml.sax.helpers.NamespaceSupport#processName
- */
- String [] processName (String qName, boolean isAttribute)
- {
- String name[];
- Hashtable table;
-
- // Select the appropriate table.
- if (isAttribute) {
- table = elementNameTable;
- } else {
- table = attributeNameTable;
- }
-
- // Start by looking in the cache, and
- // return immediately if the name
- // is already known in this content
- name = (String[])table.get(qName);
- if (name != null) {
- return name;
- }
-
- // We haven't seen this name in this
- // context before.
- name = new String[3];
- int index = qName.indexOf(':');
-
-
- // No prefix.
- if (index == -1) {
- if (isAttribute || defaultNS == null) {
- name[0] = "";
- } else {
- name[0] = defaultNS;
- }
- name[1] = qName.intern();
- name[2] = name[1];
- }
-
- // Prefix
- else {
- String prefix = qName.substring(0, index);
- String local = qName.substring(index+1);
- String uri;
- if ("".equals(prefix)) {
- uri = defaultNS;
- } else {
- uri = (String)prefixTable.get(prefix);
- }
- if (uri == null) {
- return null;
- }
- name[0] = uri;
- name[1] = local.intern();
- name[2] = qName.intern();
- }
-
- // Save in the cache for future use.
- table.put(name[2], name);
- tablesDirty = true;
- return name;
- }
-
-
- /**
- * Look up the URI associated with a prefix in this context.
- *
- * @param prefix The prefix to look up.
- * @return The associated Namespace URI, or null if none is
- * declared.
- * @see org.xml.sax.helpers.NamespaceSupport#getURI
- */
- String getURI (String prefix)
- {
- if ("".equals(prefix)) {
- return defaultNS;
- } else if (prefixTable == null) {
- return null;
- } else {
- return (String)prefixTable.get(prefix);
- }
- }
-
-
- /**
- * Look up one of the prefixes associated with a URI in this context.
- *
- * <p>Since many prefixes may be mapped to the same URI,
- * the return value may be unreliable.</p>
- *
- * @param uri The URI to look up.
- * @return The associated prefix, or null if none is declared.
- * @see org.xml.sax.helpers.NamespaceSupport#getPrefix
- */
- String getPrefix (String uri)
- {
- if (uriTable == null) {
- return null;
- } else {
- return (String)uriTable.get(uri);
- }
- }
-
-
- /**
- * Return an enumeration of prefixes declared in this context.
- *
- * @return An enumeration of prefixes (possibly empty).
- * @see org.xml.sax.helpers.NamespaceSupport#getDeclaredPrefixes
- */
- Enumeration getDeclaredPrefixes ()
- {
- if (declarations == null) {
- return EMPTY_ENUMERATION;
- } else {
- return declarations.elements();
- }
- }
-
-
- /**
- * Return an enumeration of all prefixes currently in force.
- *
- * <p>The default prefix, if in force, is <em>not</em>
- * returned, and will have to be checked for separately.</p>
- *
- * @return An enumeration of prefixes (never empty).
- * @see org.xml.sax.helpers.NamespaceSupport#getPrefixes
- */
- Enumeration getPrefixes ()
- {
- if (prefixTable == null) {
- return EMPTY_ENUMERATION;
- } else {
- return prefixTable.keys();
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////
- // Internal methods.
- ////////////////////////////////////////////////////////////////
-
-
- /**
- * Copy on write for the internal tables in this context.
- *
- * <p>This class is optimized for the normal case where most
- * elements do not contain Namespace declarations.</p>
- */
- private void copyTables ()
- {
- if (prefixTable != null) {
- prefixTable = (Hashtable)prefixTable.clone();
- } else {
- prefixTable = new Hashtable();
- }
- if (uriTable != null) {
- uriTable = (Hashtable)uriTable.clone();
- } else {
- uriTable = new Hashtable();
- }
- elementNameTable = new Hashtable();
- attributeNameTable = new Hashtable();
- tablesDirty = true;
- }
-
-
-
- ////////////////////////////////////////////////////////////////
- // Protected state.
- ////////////////////////////////////////////////////////////////
-
- Hashtable prefixTable;
- Hashtable uriTable;
- Hashtable elementNameTable;
- Hashtable attributeNameTable;
- String defaultNS = null;
-
-
-
- ////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////
-
- private Vector declarations = null;
- private boolean tablesDirty = false;
- private Context parent = null;
- }
-}
-
-// end of NamespaceSupport.java
+// NamespaceSupport.java - generic Namespace support for SAX. +// http://www.saxproject.org +// Written by David Megginson +// This class is in the Public Domain. NO WARRANTY! + +// $Id: NamespaceSupport.java,v 1.6.2.5 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.util.EmptyStackException; +import java.util.Enumeration; +import java.util.Hashtable; +import java.util.Vector; + + +/** + * Encapsulate Namespace logic for use by applications using SAX, + * or internally by SAX drivers. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class encapsulates the logic of Namespace processing: + * it tracks the declarations currently in force for each context + * and automatically processes qualified XML 1.0 names into their + * Namespace parts; it can also be used in reverse for generating + * XML 1.0 from Namespaces.</p> + * + * <p>Namespace support objects are reusable, but the reset method + * must be invoked between each session.</p> + * + * <p>Here is a simple session:</p> + * + * <pre> + * String parts[] = new String[3]; + * NamespaceSupport support = new NamespaceSupport(); + * + * support.pushContext(); + * support.declarePrefix("", "http://www.w3.org/1999/xhtml"); + * support.declarePrefix("dc", "http://www.purl.org/dc#"); + * + * parts = support.processName("p", parts, false); + * System.out.println("Namespace URI: " + parts[0]); + * System.out.println("Local name: " + parts[1]); + * System.out.println("Raw name: " + parts[2]); + * + * parts = support.processName("dc:title", parts, false); + * System.out.println("Namespace URI: " + parts[0]); + * System.out.println("Local name: " + parts[1]); + * System.out.println("Raw name: " + parts[2]); + * + * support.popContext(); + * </pre> + * + * <p>Note that this class is optimized for the use case where most + * elements do not contain Namespace declarations: if the same + * prefix/URI mapping is repeated for each context (for example), this + * class will be somewhat less efficient.</p> + * + * <p>Although SAX drivers (parsers) may choose to use this class to + * implement namespace handling, they are not required to do so. + * Applications must track namespace information themselves if they + * want to use namespace information. + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + */ +public class NamespaceSupport +{ + + + //////////////////////////////////////////////////////////////////// + // Constants. + //////////////////////////////////////////////////////////////////// + + + /** + * The XML Namespace URI as a constant. + * The value is <code>http://www.w3.org/XML/1998/namespace</code> + * as defined in the XML Namespaces specification. + * + * <p>This is the Namespace URI that is automatically mapped + * to the "xml" prefix.</p> + */ + public final static String XMLNS = + "http://www.w3.org/XML/1998/namespace"; + + + /** + * An empty enumeration. + */ + private final static Enumeration EMPTY_ENUMERATION = + new Vector().elements(); + + + //////////////////////////////////////////////////////////////////// + // Constructor. + //////////////////////////////////////////////////////////////////// + + + /** + * Create a new Namespace support object. + */ + public NamespaceSupport () + { + reset(); + } + + + + //////////////////////////////////////////////////////////////////// + // Context management. + //////////////////////////////////////////////////////////////////// + + + /** + * Reset this Namespace support object for reuse. + * + * <p>It is necessary to invoke this method before reusing the + * Namespace support object for a new session.</p> + */ + public void reset () + { + contexts = new Context[32]; + contextPos = 0; + contexts[contextPos] = currentContext = new Context(); + currentContext.declarePrefix("xml", XMLNS); + } + + + /** + * Start a new Namespace context. + * The new context will automatically inherit + * the declarations of its parent context, but it will also keep + * track of which declarations were made within this context. + * + * <p>Event callback code should start a new context once per element. + * This means being ready to call this in either of two places. + * For elements that don't include namespace declarations, the + * <em>ContentHandler.startElement()</em> callback is the right place. + * For elements with such a declaration, it'd done in the first + * <em>ContentHandler.startPrefixMapping()</em> callback. + * A boolean flag can be used to + * track whether a context has been started yet. When either of + * those methods is called, it checks the flag to see if a new context + * needs to be started. If so, it starts the context and sets the + * flag. After <em>ContentHandler.startElement()</em> + * does that, it always clears the flag. + * + * <p>Normally, SAX drivers would push a new context at the beginning + * of each XML element. Then they perform a first pass over the + * attributes to process all namespace declarations, making + * <em>ContentHandler.startPrefixMapping()</em> callbacks. + * Then a second pass is made, to determine the namespace-qualified + * names for all attributes and for the element name. + * Finally all the information for the + * <em>ContentHandler.startElement()</em> callback is available, + * so it can then be made. + * + * <p>The Namespace support object always starts with a base context + * already in force: in this context, only the "xml" prefix is + * declared.</p> + * + * @see org.xml.sax.ContentHandler + * @see #popContext + */ + public void pushContext () + { + int max = contexts.length; + + contexts [contextPos].declsOK = false; + contextPos++; + + // Extend the array if necessary + if (contextPos >= max) { + Context newContexts[] = new Context[max*2]; + System.arraycopy(contexts, 0, newContexts, 0, max); + max *= 2; + contexts = newContexts; + } + + // Allocate the context if necessary. + currentContext = contexts[contextPos]; + if (currentContext == null) { + contexts[contextPos] = currentContext = new Context(); + } + + // Set the parent, if any. + if (contextPos > 0) { + currentContext.setParent(contexts[contextPos - 1]); + } + } + + + /** + * Revert to the previous Namespace context. + * + * <p>Normally, you should pop the context at the end of each + * XML element. After popping the context, all Namespace prefix + * mappings that were previously in force are restored.</p> + * + * <p>You must not attempt to declare additional Namespace + * prefixes after popping a context, unless you push another + * context first.</p> + * + * @see #pushContext + */ + public void popContext () + { + contexts[contextPos].clear(); + contextPos--; + if (contextPos < 0) { + throw new EmptyStackException(); + } + currentContext = contexts[contextPos]; + } + + + + //////////////////////////////////////////////////////////////////// + // Operations within a context. + //////////////////////////////////////////////////////////////////// + + + /** + * Declare a Namespace prefix. All prefixes must be declared + * before they are referenced. For example, a SAX driver (parser) + * would scan an element's attributes + * in two passes: first for namespace declarations, + * then a second pass using {@link #processName processName()} to + * interpret prefixes against (potentially redefined) prefixes. + * + * <p>This method declares a prefix in the current Namespace + * context; the prefix will remain in force until this context + * is popped, unless it is shadowed in a descendant context.</p> + * + * <p>To declare the default element Namespace, use the empty string as + * the prefix.</p> + * + * <p>Note that you must <em>not</em> declare a prefix after + * you've pushed and popped another Namespace context, or + * treated the declarations phase as complete by processing + * a prefixed name.</p> + * + * <p>Note that there is an asymmetry in this library: {@link + * #getPrefix getPrefix} will not return the "" prefix, + * even if you have declared a default element namespace. + * To check for a default namespace, + * you have to look it up explicitly using {@link #getURI getURI}. + * This asymmetry exists to make it easier to look up prefixes + * for attribute names, where the default prefix is not allowed.</p> + * + * @param prefix The prefix to declare, or the empty string to + * indicate the default element namespace. This may never have + * the value "xml" or "xmlns". + * @param uri The Namespace URI to associate with the prefix. + * @return true if the prefix was legal, false otherwise + * @exception IllegalStateException when a prefix is declared + * after looking up a name in the context, or after pushing + * another context on top of it. + * + * @see #processName + * @see #getURI + * @see #getPrefix + */ + public boolean declarePrefix (String prefix, String uri) + { + if (prefix.equals("xml") || prefix.equals("xmlns")) { + return false; + } else { + currentContext.declarePrefix(prefix, uri); + return true; + } + } + + + /** + * Process a raw XML 1.0 name, after all declarations in the current + * context have been handled by {@link #declarePrefix declarePrefix()}. + * + * <p>This method processes a raw XML 1.0 name in the current + * context by removing the prefix and looking it up among the + * prefixes currently declared. The return value will be the + * array supplied by the caller, filled in as follows:</p> + * + * <dl> + * <dt>parts[0]</dt> + * <dd>The Namespace URI, or an empty string if none is + * in use.</dd> + * <dt>parts[1]</dt> + * <dd>The local name (without prefix).</dd> + * <dt>parts[2]</dt> + * <dd>The original raw name.</dd> + * </dl> + * + * <p>All of the strings in the array will be internalized. If + * the raw name has a prefix that has not been declared, then + * the return value will be null.</p> + * + * <p>Note that attribute names are processed differently than + * element names: an unprefixed element name will received the + * default Namespace (if any), while an unprefixed attribute name + * will not.</p> + * + * @param qName The raw XML 1.0 name to be processed. + * @param parts An array supplied by the caller, capable of + * holding at least three members. + * @param isAttribute A flag indicating whether this is an + * attribute name (true) or an element name (false). + * @return The supplied array holding three internalized strings + * representing the Namespace URI (or empty string), the + * local name, and the raw XML 1.0 name; or null if there + * is an undeclared prefix. + * @see #declarePrefix + * @see java.lang.String#intern */ + public String [] processName (String qName, String parts[], + boolean isAttribute) + { + String myParts[] = currentContext.processName(qName, isAttribute); + if (myParts == null) { + return null; + } else { + parts[0] = myParts[0]; + parts[1] = myParts[1]; + parts[2] = myParts[2]; + return parts; + } + } + + + /** + * Look up a prefix and get the currently-mapped Namespace URI. + * + * <p>This method looks up the prefix in the current context. + * Use the empty string ("") for the default Namespace.</p> + * + * @param prefix The prefix to look up. + * @return The associated Namespace URI, or null if the prefix + * is undeclared in this context. + * @see #getPrefix + * @see #getPrefixes + */ + public String getURI (String prefix) + { + return currentContext.getURI(prefix); + } + + + /** + * Return an enumeration of all prefixes currently declared. + * + * <p><strong>Note:</strong> if there is a default prefix, it will not be + * returned in this enumeration; check for the default prefix + * using the {@link #getURI getURI} with an argument of "".</p> + * + * @return An enumeration of all prefixes declared in the + * current context except for the empty (default) + * prefix. + * @see #getDeclaredPrefixes + * @see #getURI + */ + public Enumeration getPrefixes () + { + return currentContext.getPrefixes(); + } + + + /** + * Return one of the prefixes mapped to a Namespace URI. + * + * <p>If more than one prefix is currently mapped to the same + * URI, this method will make an arbitrary selection; if you + * want all of the prefixes, use the {@link #getPrefixes} + * method instead.</p> + * + * <p><strong>Note:</strong> this will never return the empty (default) prefix; + * to check for a default prefix, use the {@link #getURI getURI} + * method with an argument of "".</p> + * + * @param uri The Namespace URI. + * @param isAttribute true if this prefix is for an attribute + * (and the default Namespace is not allowed). + * @return One of the prefixes currently mapped to the URI supplied, + * or null if none is mapped or if the URI is assigned to + * the default Namespace. + * @see #getPrefixes(java.lang.String) + * @see #getURI + */ + public String getPrefix (String uri) + { + return currentContext.getPrefix(uri); + } + + + /** + * Return an enumeration of all prefixes currently declared for a URI. + * + * <p>This method returns prefixes mapped to a specific Namespace + * URI. The xml: prefix will be included. If you want only one + * prefix that's mapped to the Namespace URI, and you don't care + * which one you get, use the {@link #getPrefix getPrefix} + * method instead.</p> + * + * <p><strong>Note:</strong> the empty (default) prefix is <em>never</em> included + * in this enumeration; to check for the presence of a default + * Namespace, use the {@link #getURI getURI} method with an + * argument of "".</p> + * + * @param uri The Namespace URI. + * @return An enumeration of all prefixes declared in the + * current context. + * @see #getPrefix + * @see #getDeclaredPrefixes + * @see #getURI + */ + public Enumeration getPrefixes (String uri) + { + Vector prefixes = new Vector(); + Enumeration allPrefixes = getPrefixes(); + while (allPrefixes.hasMoreElements()) { + String prefix = (String)allPrefixes.nextElement(); + if (uri.equals(getURI(prefix))) { + prefixes.addElement(prefix); + } + } + return prefixes.elements(); + } + + + /** + * Return an enumeration of all prefixes declared in this context. + * + * <p>The empty (default) prefix will be included in this + * enumeration; note that this behaviour differs from that of + * {@link #getPrefix} and {@link #getPrefixes}.</p> + * + * @return An enumeration of all prefixes declared in this + * context. + * @see #getPrefixes + * @see #getURI + */ + public Enumeration getDeclaredPrefixes () + { + return currentContext.getDeclaredPrefixes(); + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + private Context contexts[]; + private Context currentContext; + private int contextPos; + + + + //////////////////////////////////////////////////////////////////// + // Internal classes. + //////////////////////////////////////////////////////////////////// + + /** + * Internal class for a single Namespace context. + * + * <p>This module caches and reuses Namespace contexts, + * so the number allocated + * will be equal to the element depth of the document, not to the total + * number of elements (i.e. 5-10 rather than tens of thousands). + * Also, data structures used to represent contexts are shared when + * possible (child contexts without declarations) to further reduce + * the amount of memory that's consumed. + * </p> + */ + final class Context { + + /** + * Create the root-level Namespace context. + */ + Context () + { + copyTables(); + } + + + /** + * (Re)set the parent of this Namespace context. + * The context must either have been freshly constructed, + * or must have been cleared. + * + * @param context The parent Namespace context object. + */ + void setParent (Context parent) + { + this.parent = parent; + declarations = null; + prefixTable = parent.prefixTable; + uriTable = parent.uriTable; + elementNameTable = parent.elementNameTable; + attributeNameTable = parent.attributeNameTable; + defaultNS = parent.defaultNS; + declSeen = false; + declsOK = true; + } + + /** + * Makes associated state become collectible, + * invalidating this context. + * {@link #setParent} must be called before + * this context may be used again. + */ + void clear () + { + parent = null; + prefixTable = null; + uriTable = null; + elementNameTable = null; + attributeNameTable = null; + defaultNS = null; + } + + + /** + * Declare a Namespace prefix for this context. + * + * @param prefix The prefix to declare. + * @param uri The associated Namespace URI. + * @see org.xml.sax.helpers.NamespaceSupport#declarePrefix + */ + void declarePrefix (String prefix, String uri) + { + // Lazy processing... + if (!declsOK) + throw new IllegalStateException ( + "can't declare any more prefixes in this context"); + if (!declSeen) { + copyTables(); + } + if (declarations == null) { + declarations = new Vector(); + } + + prefix = prefix.intern(); + uri = uri.intern(); + if ("".equals(prefix)) { + if ("".equals(uri)) { + defaultNS = null; + } else { + defaultNS = uri; + } + } else { + prefixTable.put(prefix, uri); + uriTable.put(uri, prefix); // may wipe out another prefix + } + declarations.addElement(prefix); + } + + + /** + * Process a raw XML 1.0 name in this context. + * + * @param qName The raw XML 1.0 name. + * @param isAttribute true if this is an attribute name. + * @return An array of three strings containing the + * URI part (or empty string), the local part, + * and the raw name, all internalized, or null + * if there is an undeclared prefix. + * @see org.xml.sax.helpers.NamespaceSupport#processName + */ + String [] processName (String qName, boolean isAttribute) + { + String name[]; + Hashtable table; + + // detect errors in call sequence + declsOK = false; + + // Select the appropriate table. + if (isAttribute) { + table = attributeNameTable; + } else { + table = elementNameTable; + } + + // Start by looking in the cache, and + // return immediately if the name + // is already known in this content + name = (String[])table.get(qName); + if (name != null) { + return name; + } + + // We haven't seen this name in this + // context before. Maybe in the parent + // context, but we can't assume prefix + // bindings are the same. + name = new String[3]; + name[2] = qName.intern(); + int index = qName.indexOf(':'); + + + // No prefix. + if (index == -1) { + if (isAttribute || defaultNS == null) { + name[0] = ""; + } else { + name[0] = defaultNS; + } + name[1] = name[2]; + } + + // Prefix + else { + String prefix = qName.substring(0, index); + String local = qName.substring(index+1); + String uri; + if ("".equals(prefix)) { + uri = defaultNS; + } else { + uri = (String)prefixTable.get(prefix); + } + if (uri == null) { + return null; + } + name[0] = uri; + name[1] = local.intern(); + } + + // Save in the cache for future use. + // (Could be shared with parent context...) + table.put(name[2], name); + return name; + } + + + /** + * Look up the URI associated with a prefix in this context. + * + * @param prefix The prefix to look up. + * @return The associated Namespace URI, or null if none is + * declared. + * @see org.xml.sax.helpers.NamespaceSupport#getURI + */ + String getURI (String prefix) + { + if ("".equals(prefix)) { + return defaultNS; + } else if (prefixTable == null) { + return null; + } else { + return (String)prefixTable.get(prefix); + } + } + + + /** + * Look up one of the prefixes associated with a URI in this context. + * + * <p>Since many prefixes may be mapped to the same URI, + * the return value may be unreliable.</p> + * + * @param uri The URI to look up. + * @return The associated prefix, or null if none is declared. + * @see org.xml.sax.helpers.NamespaceSupport#getPrefix + */ + String getPrefix (String uri) + { + if (uriTable == null) { + return null; + } else { + return (String)uriTable.get(uri); + } + } + + + /** + * Return an enumeration of prefixes declared in this context. + * + * @return An enumeration of prefixes (possibly empty). + * @see org.xml.sax.helpers.NamespaceSupport#getDeclaredPrefixes + */ + Enumeration getDeclaredPrefixes () + { + if (declarations == null) { + return EMPTY_ENUMERATION; + } else { + return declarations.elements(); + } + } + + + /** + * Return an enumeration of all prefixes currently in force. + * + * <p>The default prefix, if in force, is <em>not</em> + * returned, and will have to be checked for separately.</p> + * + * @return An enumeration of prefixes (never empty). + * @see org.xml.sax.helpers.NamespaceSupport#getPrefixes + */ + Enumeration getPrefixes () + { + if (prefixTable == null) { + return EMPTY_ENUMERATION; + } else { + return prefixTable.keys(); + } + } + + + + //////////////////////////////////////////////////////////////// + // Internal methods. + //////////////////////////////////////////////////////////////// + + + /** + * Copy on write for the internal tables in this context. + * + * <p>This class is optimized for the normal case where most + * elements do not contain Namespace declarations.</p> + */ + private void copyTables () + { + if (prefixTable != null) { + prefixTable = (Hashtable)prefixTable.clone(); + } else { + prefixTable = new Hashtable(); + } + if (uriTable != null) { + uriTable = (Hashtable)uriTable.clone(); + } else { + uriTable = new Hashtable(); + } + elementNameTable = new Hashtable(); + attributeNameTable = new Hashtable(); + declSeen = true; + } + + + + //////////////////////////////////////////////////////////////// + // Protected state. + //////////////////////////////////////////////////////////////// + + Hashtable prefixTable; + Hashtable uriTable; + Hashtable elementNameTable; + Hashtable attributeNameTable; + String defaultNS = null; + boolean declsOK = true; + + + + //////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////// + + private Vector declarations = null; + private boolean declSeen = false; + private Context parent = null; + } +} + +// end of NamespaceSupport.java diff --git a/libjava/org/xml/sax/helpers/NewInstance.java b/libjava/org/xml/sax/helpers/NewInstance.java new file mode 100644 index 00000000000..7d107a65239 --- /dev/null +++ b/libjava/org/xml/sax/helpers/NewInstance.java @@ -0,0 +1,80 @@ +// NewInstance.java - create a new instance of a class by name. +// http://www.saxproject.org +// Written by Edwin Goei, edwingo@apache.org +// and by David Brownell, dbrownell@users.sourceforge.net +// NO WARRANTY! This class is in the Public Domain. + +// $Id: NewInstance.java,v 1.1.2.4 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.lang.reflect.Method; +import java.lang.reflect.InvocationTargetException; + +/** + * Create a new instance of a class by name. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class contains a static method for creating an instance of a + * class from an explicit class name. It tries to use the thread's context + * ClassLoader if possible and falls back to using + * Class.forName(String).</p> + * + * <p>This code is designed to compile and run on JDK version 1.1 and later + * including versions of Java 2.</p> + * + * @author Edwin Goei, David Brownell + * @version 2.0.1 (sax2r2) + */ +class NewInstance { + + /** + * Creates a new instance of the specified class name + * + * Package private so this code is not exposed at the API level. + */ + static Object newInstance (ClassLoader classLoader, String className) + throws ClassNotFoundException, IllegalAccessException, + InstantiationException + { + Class driverClass; + if (classLoader == null) { + driverClass = Class.forName(className); + } else { + driverClass = classLoader.loadClass(className); + } + return driverClass.newInstance(); + } + + /** + * Figure out which ClassLoader to use. For JDK 1.2 and later use + * the context ClassLoader. + */ + static ClassLoader getClassLoader () + { + Method m = null; + + try { + m = Thread.class.getMethod("getContextClassLoader", null); + } catch (NoSuchMethodException e) { + // Assume that we are running JDK 1.1, use the current ClassLoader + return NewInstance.class.getClassLoader(); + } + + try { + return (ClassLoader) m.invoke(Thread.currentThread(), null); + } catch (IllegalAccessException e) { + // assert(false) + throw new UnknownError(e.getMessage()); + } catch (InvocationTargetException e) { + // assert(e.getTargetException() instanceof SecurityException) + throw new UnknownError(e.getMessage()); + } + } +} diff --git a/libjava/org/xml/sax/helpers/ParserAdapter.java b/libjava/org/xml/sax/helpers/ParserAdapter.java index 06071b7bdd5..ca66a9e2dc7 100644 --- a/libjava/org/xml/sax/helpers/ParserAdapter.java +++ b/libjava/org/xml/sax/helpers/ParserAdapter.java @@ -1,1008 +1,1026 @@ -// ParserAdapter.java - adapt a SAX1 Parser to a SAX2 XMLReader.
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the public domain.
-
-// $Id: ParserAdapter.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import java.io.IOException;
-import java.util.Enumeration;
-
-import org.xml.sax.Parser; // deprecated
-import org.xml.sax.InputSource;
-import org.xml.sax.Locator;
-import org.xml.sax.AttributeList; // deprecated
-import org.xml.sax.EntityResolver;
-import org.xml.sax.DTDHandler;
-import org.xml.sax.DocumentHandler; // deprecated
-import org.xml.sax.ErrorHandler;
-import org.xml.sax.SAXException;
-import org.xml.sax.SAXParseException;
-
-import org.xml.sax.XMLReader;
-import org.xml.sax.Attributes;
-import org.xml.sax.ContentHandler;
-import org.xml.sax.SAXNotRecognizedException;
-import org.xml.sax.SAXNotSupportedException;
-
-
-/**
- * Adapt a SAX1 Parser as a SAX2 XMLReader.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class wraps a SAX1 {@link org.xml.sax.Parser Parser}
- * and makes it act as a SAX2 {@link org.xml.sax.XMLReader XMLReader},
- * with feature, property, and Namespace support. Note
- * that it is not possible to report {@link org.xml.sax.ContentHandler#skippedEntity
- * skippedEntity} events, since SAX1 does not make that information available.</p>
- *
- * <p>This adapter does not test for duplicate Namespace-qualified
- * attribute names.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.helpers.XMLReaderAdapter
- * @see org.xml.sax.XMLReader
- * @see org.xml.sax.Parser
- */
-public class ParserAdapter implements XMLReader, DocumentHandler
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Constructors.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Construct a new parser adapter.
- *
- * <p>Use the "org.xml.sax.parser" property to locate the
- * embedded SAX1 driver.</p>
- *
- * @exception org.xml.sax.SAXException If the embedded driver
- * cannot be instantiated or if the
- * org.xml.sax.parser property is not specified.
- */
- public ParserAdapter ()
- throws SAXException
- {
- super();
-
- String driver = System.getProperty("org.xml.sax.parser");
-
- try {
- setup(ParserFactory.makeParser());
- } catch (ClassNotFoundException e1) {
- throw new
- SAXException("Cannot find SAX1 driver class " +
- driver, e1);
- } catch (IllegalAccessException e2) {
- throw new
- SAXException("SAX1 driver class " +
- driver +
- " found but cannot be loaded", e2);
- } catch (InstantiationException e3) {
- throw new
- SAXException("SAX1 driver class " +
- driver +
- " loaded but cannot be instantiated", e3);
- } catch (ClassCastException e4) {
- throw new
- SAXException("SAX1 driver class " +
- driver +
- " does not implement org.xml.sax.Parser");
- } catch (NullPointerException e5) {
- throw new
- SAXException("System property org.xml.sax.parser not specified");
- }
- }
-
-
- /**
- * Construct a new parser adapter.
- *
- * <p>Note that the embedded parser cannot be changed once the
- * adapter is created; to embed a different parser, allocate
- * a new ParserAdapter.</p>
- *
- * @param parser The SAX1 parser to embed.
- * @exception java.lang.NullPointerException If the parser parameter
- * is null.
- */
- public ParserAdapter (Parser parser)
- {
- super();
- setup(parser);
- }
-
-
- /**
- * Internal setup method.
- *
- * @param parser The embedded parser.
- * @exception java.lang.NullPointerException If the parser parameter
- * is null.
- */
- private void setup (Parser parser)
- {
- if (parser == null) {
- throw new
- NullPointerException("Parser argument must not be null");
- }
- this.parser = parser;
- atts = new AttributesImpl();
- nsSupport = new NamespaceSupport();
- attAdapter = new AttributeListAdapter();
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.XMLReader.
- ////////////////////////////////////////////////////////////////////
-
-
- //
- // Internal constants for the sake of convenience.
- //
- private final static String FEATURES = "http://xml.org/sax/features/";
- private final static String NAMESPACES = FEATURES + "namespaces";
- private final static String NAMESPACE_PREFIXES = FEATURES + "namespace-prefixes";
- private final static String VALIDATION = FEATURES + "validation";
- private final static String EXTERNAL_GENERAL =
- FEATURES + "external-general-entities";
- private final static String EXTERNAL_PARAMETER =
- FEATURES + "external-parameter-entities";
-
-
- /**
- * Set a feature for the parser.
- *
- * <p>The only features supported are namespaces and
- * namespace-prefixes.</p>
- *
- * @param name The feature name, as a complete URI.
- * @param state The requested feature state.
- * @exception org.xml.sax.SAXNotRecognizedException If the feature
- * name is not known.
- * @exception org.xml.sax.SAXNotSupportedException If the feature
- * state is not supported.
- * @see org.xml.sax.XMLReader#setFeature
- */
- public void setFeature (String name, boolean state)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (name.equals(NAMESPACES)) {
- checkNotParsing("feature", name);
- namespaces = state;
- if (!namespaces && !prefixes) {
- prefixes = true;
- }
- } else if (name.equals(NAMESPACE_PREFIXES)) {
- checkNotParsing("feature", name);
- prefixes = state;
- if (!prefixes && !namespaces) {
- namespaces = true;
- }
- } else if (name.equals(VALIDATION) ||
- name.equals(EXTERNAL_GENERAL) ||
- name.equals(EXTERNAL_PARAMETER)) {
- throw new SAXNotSupportedException("Feature: " + name);
- } else {
- throw new SAXNotRecognizedException("Feature: " + name);
- }
- }
-
-
- /**
- * Check a parser feature.
- *
- * <p>The only features supported are namespaces and
- * namespace-prefixes.</p>
- *
- * @param name The feature name, as a complete URI.
- * @return The current feature state.
- * @exception org.xml.sax.SAXNotRecognizedException If the feature
- * name is not known.
- * @exception org.xml.sax.SAXNotSupportedException If querying the
- * feature state is not supported.
- * @see org.xml.sax.XMLReader#setFeature
- */
- public boolean getFeature (String name)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (name.equals(NAMESPACES)) {
- return namespaces;
- } else if (name.equals(NAMESPACE_PREFIXES)) {
- return prefixes;
- } else if (name.equals(VALIDATION) ||
- name.equals(EXTERNAL_GENERAL) ||
- name.equals(EXTERNAL_PARAMETER)) {
- throw new SAXNotSupportedException("Feature: " + name);
- } else {
- throw new SAXNotRecognizedException("Feature: " + name);
- }
- }
-
-
- /**
- * Set a parser property.
- *
- * <p>No special properties are currently supported.</p>
- *
- * @param name The property name.
- * @param value The property value.
- * @exception org.xml.sax.SAXNotRecognizedException If the feature
- * name is not known.
- * @exception org.xml.sax.SAXNotSupportedException If the feature
- * state is not supported.
- * @see org.xml.sax.XMLReader#setProperty
- */
- public void setProperty (String name, Object value)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- throw new SAXNotRecognizedException("Property: " + name);
- }
-
-
- /**
- * Get a parser property.
- *
- * <p>No special properties are currently supported.</p>
- *
- * @param name The property name.
- * @return The property value.
- * @exception org.xml.sax.SAXNotRecognizedException If the feature
- * name is not known.
- * @exception org.xml.sax.SAXNotSupportedException If the feature
- * state is not supported.
- * @see org.xml.sax.XMLReader#getProperty
- */
- public Object getProperty (String name)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- throw new SAXNotRecognizedException("Property: " + name);
- }
-
-
- /**
- * Set the entity resolver.
- *
- * @param resolver The new entity resolver.
- * @exception java.lang.NullPointerException If the entity resolver
- * parameter is null.
- * @see org.xml.sax.XMLReader#setEntityResolver
- */
- public void setEntityResolver (EntityResolver resolver)
- {
- if (resolver == null) {
- throw new NullPointerException("Null entity resolver");
- }
- entityResolver = resolver;
- }
-
-
- /**
- * Return the current entity resolver.
- *
- * @return The current entity resolver, or null if none was supplied.
- * @see org.xml.sax.XMLReader#getEntityResolver
- */
- public EntityResolver getEntityResolver ()
- {
- return entityResolver;
- }
-
-
- /**
- * Set the DTD handler.
- *
- * @param resolver The new DTD handler.
- * @exception java.lang.NullPointerException If the DTD handler
- * parameter is null.
- * @see org.xml.sax.XMLReader#setEntityResolver
- */
- public void setDTDHandler (DTDHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null DTD handler");
- }
- dtdHandler = handler;
- }
-
-
- /**
- * Return the current DTD handler.
- *
- * @return The current DTD handler, or null if none was supplied.
- * @see org.xml.sax.XMLReader#getEntityResolver
- */
- public DTDHandler getDTDHandler ()
- {
- return dtdHandler;
- }
-
-
- /**
- * Set the content handler.
- *
- * @param resolver The new content handler.
- * @exception java.lang.NullPointerException If the content handler
- * parameter is null.
- * @see org.xml.sax.XMLReader#setEntityResolver
- */
- public void setContentHandler (ContentHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null content handler");
- }
- contentHandler = handler;
- }
-
-
- /**
- * Return the current content handler.
- *
- * @return The current content handler, or null if none was supplied.
- * @see org.xml.sax.XMLReader#getEntityResolver
- */
- public ContentHandler getContentHandler ()
- {
- return contentHandler;
- }
-
-
- /**
- * Set the error handler.
- *
- * @param resolver The new error handler.
- * @exception java.lang.NullPointerException If the error handler
- * parameter is null.
- * @see org.xml.sax.XMLReader#setEntityResolver
- */
- public void setErrorHandler (ErrorHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null error handler");
- }
- errorHandler = handler;
- }
-
-
- /**
- * Return the current error handler.
- *
- * @return The current error handler, or null if none was supplied.
- * @see org.xml.sax.XMLReader#getEntityResolver
- */
- public ErrorHandler getErrorHandler ()
- {
- return errorHandler;
- }
-
-
- /**
- * Parse an XML document.
- *
- * @param systemId The absolute URL of the document.
- * @exception java.io.IOException If there is a problem reading
- * the raw content of the document.
- * @exception org.xml.sax.SAXException If there is a problem
- * processing the document.
- * @see #parse(org.xml.sax.InputSource)
- * @see org.xml.sax.Parser#parse(java.lang.String)
- */
- public void parse (String systemId)
- throws IOException, SAXException
- {
- parse(new InputSource(systemId));
- }
-
-
- /**
- * Parse an XML document.
- *
- * @param input An input source for the document.
- * @exception java.io.IOException If there is a problem reading
- * the raw content of the document.
- * @exception org.xml.sax.SAXException If there is a problem
- * processing the document.
- * @see #parse(java.lang.String)
- * @see org.xml.sax.Parser#parse(org.xml.sax.InputSource)
- */
- public void parse (InputSource input)
- throws IOException, SAXException
- {
- if (parsing) {
- throw new SAXException("Parser is already in use");
- }
- setupParser();
- parsing = true;
- try {
- parser.parse(input);
- } finally {
- parsing = false;
- }
- parsing = false;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.DocumentHandler.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Adapt a SAX1 document locator event.
- *
- * @param locator A document locator.
- * @see org.xml.sax.ContentHandler#setDocumentLocator
- */
- public void setDocumentLocator (Locator locator)
- {
- this.locator = locator;
- if (contentHandler != null) {
- contentHandler.setDocumentLocator(locator);
- }
- }
-
-
- /**
- * Adapt a SAX1 start document event.
- *
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#startDocument
- */
- public void startDocument ()
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.startDocument();
- }
- }
-
-
- /**
- * Adapt a SAX1 end document event.
- *
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#endDocument
- */
- public void endDocument ()
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.endDocument();
- }
- }
-
-
- /**
- * Adapt a SAX1 startElement event.
- *
- * <p>If necessary, perform Namespace processing.</p>
- *
- * @param qName The qualified (prefixed) name.
- * @param qAtts The XML 1.0 attribute list (with qnames).
- */
- public void startElement (String qName, AttributeList qAtts)
- throws SAXException
- {
- // If we're not doing Namespace
- // processing, dispatch this quickly.
- if (!namespaces) {
- if (contentHandler != null) {
- attAdapter.setAttributeList(qAtts);
- contentHandler.startElement("", "", qName.intern(),
- attAdapter);
- }
- return;
- }
-
-
- // OK, we're doing Namespace processing.
- nsSupport.pushContext();
- boolean seenDecl = false;
- atts.clear();
-
- // Take a first pass and copy all
- // attributes into the SAX2 attribute
- // list, noting any Namespace
- // declarations.
- int length = qAtts.getLength();
- for (int i = 0; i < length; i++) {
- String attQName = qAtts.getName(i);
- String type = qAtts.getType(i);
- String value = qAtts.getValue(i);
-
- // Found a declaration...
- if (attQName.startsWith("xmlns")) {
- String prefix;
- int n = attQName.indexOf(':');
- if (n == -1) {
- prefix = "";
- } else {
- prefix = attQName.substring(n+1);
- }
- if (!nsSupport.declarePrefix(prefix, value)) {
- reportError("Illegal Namespace prefix: " + prefix);
- }
- if (contentHandler != null) {
- contentHandler.startPrefixMapping(prefix, value);
- }
- // We may still have to add this to
- // the list.
- if (prefixes) {
- atts.addAttribute("", "", attQName.intern(),
- type, value);
- }
- seenDecl = true;
-
- // This isn't a declaration.
- } else {
- String attName[] = processName(attQName, true);
- atts.addAttribute(attName[0], attName[1], attName[2],
- type, value);
- }
- }
-
- // If there was a Namespace declaration,
- // we have to make a second pass just
- // to be safe -- this will happen very
- // rarely, possibly only once for each
- // document.
- if (seenDecl) {
- length = atts.getLength();
- for (int i = 0; i < length; i++) {
- String attQName = atts.getQName(i);
- if (!attQName.startsWith("xmlns")) {
- String attName[] = processName(attQName, true);
- atts.setURI(i, attName[0]);
- atts.setLocalName(i, attName[1]);
- }
- }
- }
-
- // OK, finally report the event.
- if (contentHandler != null) {
- String name[] = processName(qName, false);
- contentHandler.startElement(name[0], name[1], name[2], atts);
- }
- }
-
-
- /**
- * Adapt a SAX1 end element event.
- *
- * @param qName The qualified (prefixed) name.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#endElement
- */
- public void endElement (String qName)
- throws SAXException
- {
- // If we're not doing Namespace
- // processing, dispatch this quickly.
- if (!namespaces) {
- if (contentHandler != null) {
- contentHandler.endElement("", "", qName.intern());
- }
- return;
- }
-
- // Split the name.
- String names[] = processName(qName, false);
- if (contentHandler != null) {
- contentHandler.endElement(names[0], names[1], names[2]);
- Enumeration prefixes = nsSupport.getDeclaredPrefixes();
- while (prefixes.hasMoreElements()) {
- String prefix = (String)prefixes.nextElement();
- contentHandler.endPrefixMapping(prefix);
- }
- }
- nsSupport.popContext();
- }
-
-
- /**
- * Adapt a SAX1 characters event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#characters
- */
- public void characters (char ch[], int start, int length)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.characters(ch, start, length);
- }
- }
-
-
- /**
- * Adapt a SAX1 ignorable whitespace event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#ignorableWhitespace
- */
- public void ignorableWhitespace (char ch[], int start, int length)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.ignorableWhitespace(ch, start, length);
- }
- }
-
-
- /**
- * Adapt a SAX1 processing instruction event.
- *
- * @param target The processing instruction target.
- * @param data The remainder of the processing instruction
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.DocumentHandler#processingInstruction
- */
- public void processingInstruction (String target, String data)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.processingInstruction(target, data);
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal utility methods.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Initialize the parser before each run.
- */
- private void setupParser ()
- {
- nsSupport.reset();
-
- if (entityResolver != null) {
- parser.setEntityResolver(entityResolver);
- }
- if (dtdHandler != null) {
- parser.setDTDHandler(dtdHandler);
- }
- if (errorHandler != null) {
- parser.setErrorHandler(errorHandler);
- }
- parser.setDocumentHandler(this);
- locator = null;
- }
-
-
- /**
- * Process a qualified (prefixed) name.
- *
- * <p>If the name has an undeclared prefix, use only the qname
- * and make an ErrorHandler.error callback in case the app is
- * interested.</p>
- *
- * @param qName The qualified (prefixed) name.
- * @param isAttribute true if this is an attribute name.
- * @return The name split into three parts.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception if there is an error callback.
- */
- private String [] processName (String qName, boolean isAttribute)
- throws SAXException
- {
- String parts[] = nsSupport.processName(qName, nameParts,
- isAttribute);
- if (parts == null) {
- parts = new String[3];
- parts[2] = qName.intern();
- reportError("Undeclared prefix: " + qName);
- }
- return parts;
- }
-
-
- /**
- * Report a non-fatal error.
- *
- * @param message The error message.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception.
- */
- void reportError (String message)
- throws SAXException
- {
- if (errorHandler == null) {
- return;
- }
-
- SAXParseException e;
- if (locator != null) {
- e = new SAXParseException(message, locator);
- } else {
- e = new SAXParseException(message, null, null, -1, -1);
- }
- errorHandler.error(e);
- }
-
-
- /**
- * Throw an exception if we are parsing.
- *
- * <p>Use this method to detect illegal feature or
- * property changes.</p>
- *
- * @param type The type of thing (feature or property).
- * @param name The feature or property name.
- * @exception org.xml.sax.SAXNotSupportedException If a
- * document is currently being parsed.
- */
- private void checkNotParsing (String type, String name)
- throws SAXNotSupportedException
- {
- if (parsing) {
- throw new SAXNotSupportedException("Cannot change " +
- type + ' ' +
- name + " while parsing");
-
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- private NamespaceSupport nsSupport;
- private AttributeListAdapter attAdapter;
-
- private boolean parsing = false;
- private String nameParts[] = new String[3];
-
- private Parser parser = null;
-
- private AttributesImpl atts = null;
-
- // Features
- private boolean namespaces = true;
- private boolean prefixes = false;
-
- // Properties
-
- // Handlers
- Locator locator;
-
- EntityResolver entityResolver = null;
- DTDHandler dtdHandler = null;
- ContentHandler contentHandler = null;
- ErrorHandler errorHandler = null;
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Inner class to wrap an AttributeList when not doing NS proc.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Adapt a SAX1 AttributeList as a SAX2 Attributes object.
- *
- * <p>This class is in the Public Domain, and comes with NO
- * WARRANTY of any kind.</p>
- *
- * <p>This wrapper class is used only when Namespace support
- * is disabled -- it provides pretty much a direct mapping
- * from SAX1 to SAX2, except that names and types are
- * interned whenever requested.</p>
- */
- final class AttributeListAdapter implements Attributes
- {
-
- /**
- * Construct a new adapter.
- */
- AttributeListAdapter ()
- {
- }
-
-
- /**
- * Set the embedded AttributeList.
- *
- * <p>This method must be invoked before any of the others
- * can be used.</p>
- *
- * @param The SAX1 attribute list (with qnames).
- */
- void setAttributeList (AttributeList qAtts)
- {
- this.qAtts = qAtts;
- }
-
-
- /**
- * Return the length of the attribute list.
- *
- * @return The number of attributes in the list.
- * @see org.xml.sax.Attributes#getLength
- */
- public int getLength ()
- {
- return qAtts.getLength();
- }
-
-
- /**
- * Return the Namespace URI of the specified attribute.
- *
- * @param The attribute's index.
- * @return Always the empty string.
- * @see org.xml.sax.Attributes#getURI
- */
- public String getURI (int i)
- {
- return "";
- }
-
-
- /**
- * Return the local name of the specified attribute.
- *
- * @param The attribute's index.
- * @return Always the empty string.
- * @see org.xml.sax.Attributes#getLocalName
- */
- public String getLocalName (int i)
- {
- return "";
- }
-
-
- /**
- * Return the qualified (prefixed) name of the specified attribute.
- *
- * @param The attribute's index.
- * @return The attribute's qualified name, internalized.
- */
- public String getQName (int i)
- {
- return qAtts.getName(i).intern();
- }
-
-
- /**
- * Return the type of the specified attribute.
- *
- * @param The attribute's index.
- * @return The attribute's type as an internalized string.
- */
- public String getType (int i)
- {
- return qAtts.getType(i).intern();
- }
-
-
- /**
- * Return the value of the specified attribute.
- *
- * @param The attribute's index.
- * @return The attribute's value.
- */
- public String getValue (int i)
- {
- return qAtts.getValue(i);
- }
-
-
- /**
- * Look up an attribute index by Namespace name.
- *
- * @param uri The Namespace URI or the empty string.
- * @param localName The local name.
- * @return The attributes index, or -1 if none was found.
- * @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String)
- */
- public int getIndex (String uri, String localName)
- {
- return -1;
- }
-
-
- /**
- * Look up an attribute index by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attributes index, or -1 if none was found.
- * @see org.xml.sax.Attributes#getIndex(java.lang.String)
- */
- public int getIndex (String qName)
- {
- int max = atts.getLength();
- for (int i = 0; i < max; i++) {
- if (qAtts.getName(i).equals(qName)) {
- return i;
- }
- }
- return -1;
- }
-
-
- /**
- * Look up the type of an attribute by Namespace name.
- *
- * @param uri The Namespace URI
- * @param localName The local name.
- * @return The attribute's type as an internalized string.
- */
- public String getType (String uri, String localName)
- {
- return null;
- }
-
-
- /**
- * Look up the type of an attribute by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attribute's type as an internalized string.
- */
- public String getType (String qName)
- {
- return qAtts.getType(qName).intern();
- }
-
-
- /**
- * Look up the value of an attribute by Namespace name.
- *
- * @param uri The Namespace URI
- * @param localName The local name.
- * @return The attribute's value.
- */
- public String getValue (String uri, String localName)
- {
- return null;
- }
-
-
- /**
- * Look up the value of an attribute by qualified (prefixed) name.
- *
- * @param qName The qualified name.
- * @return The attribute's value.
- */
- public String getValue (String qName)
- {
- return qAtts.getValue(qName);
- }
-
- private AttributeList qAtts;
- }
-}
-
-// end of ParserAdapter.java
+// ParserAdapter.java - adapt a SAX1 Parser to a SAX2 XMLReader. +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the public domain. + +// $Id: ParserAdapter.java,v 1.8.2.4 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.io.IOException; +import java.util.Enumeration; +import java.util.Vector; + +import org.xml.sax.Parser; // deprecated +import org.xml.sax.InputSource; +import org.xml.sax.Locator; +import org.xml.sax.AttributeList; // deprecated +import org.xml.sax.EntityResolver; +import org.xml.sax.DTDHandler; +import org.xml.sax.DocumentHandler; // deprecated +import org.xml.sax.ErrorHandler; +import org.xml.sax.SAXException; +import org.xml.sax.SAXParseException; + +import org.xml.sax.XMLReader; +import org.xml.sax.Attributes; +import org.xml.sax.ContentHandler; +import org.xml.sax.SAXNotRecognizedException; +import org.xml.sax.SAXNotSupportedException; + + +/** + * Adapt a SAX1 Parser as a SAX2 XMLReader. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class wraps a SAX1 {@link org.xml.sax.Parser Parser} + * and makes it act as a SAX2 {@link org.xml.sax.XMLReader XMLReader}, + * with feature, property, and Namespace support. Note + * that it is not possible to report {@link org.xml.sax.ContentHandler#skippedEntity + * skippedEntity} events, since SAX1 does not make that information available.</p> + * + * <p>This adapter does not test for duplicate Namespace-qualified + * attribute names.</p> + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.helpers.XMLReaderAdapter + * @see org.xml.sax.XMLReader + * @see org.xml.sax.Parser + */ +public class ParserAdapter implements XMLReader, DocumentHandler +{ + + + //////////////////////////////////////////////////////////////////// + // Constructors. + //////////////////////////////////////////////////////////////////// + + + /** + * Construct a new parser adapter. + * + * <p>Use the "org.xml.sax.parser" property to locate the + * embedded SAX1 driver.</p> + * + * @exception SAXException If the embedded driver + * cannot be instantiated or if the + * org.xml.sax.parser property is not specified. + */ + public ParserAdapter () + throws SAXException + { + super(); + + String driver = System.getProperty("org.xml.sax.parser"); + + try { + setup(ParserFactory.makeParser()); + } catch (ClassNotFoundException e1) { + throw new + SAXException("Cannot find SAX1 driver class " + + driver, e1); + } catch (IllegalAccessException e2) { + throw new + SAXException("SAX1 driver class " + + driver + + " found but cannot be loaded", e2); + } catch (InstantiationException e3) { + throw new + SAXException("SAX1 driver class " + + driver + + " loaded but cannot be instantiated", e3); + } catch (ClassCastException e4) { + throw new + SAXException("SAX1 driver class " + + driver + + " does not implement org.xml.sax.Parser"); + } catch (NullPointerException e5) { + throw new + SAXException("System property org.xml.sax.parser not specified"); + } + } + + + /** + * Construct a new parser adapter. + * + * <p>Note that the embedded parser cannot be changed once the + * adapter is created; to embed a different parser, allocate + * a new ParserAdapter.</p> + * + * @param parser The SAX1 parser to embed. + * @exception java.lang.NullPointerException If the parser parameter + * is null. + */ + public ParserAdapter (Parser parser) + { + super(); + setup(parser); + } + + + /** + * Internal setup method. + * + * @param parser The embedded parser. + * @exception java.lang.NullPointerException If the parser parameter + * is null. + */ + private void setup (Parser parser) + { + if (parser == null) { + throw new + NullPointerException("Parser argument must not be null"); + } + this.parser = parser; + atts = new AttributesImpl(); + nsSupport = new NamespaceSupport(); + attAdapter = new AttributeListAdapter(); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.XMLReader. + //////////////////////////////////////////////////////////////////// + + + // + // Internal constants for the sake of convenience. + // + private final static String FEATURES = "http://xml.org/sax/features/"; + private final static String NAMESPACES = FEATURES + "namespaces"; + private final static String NAMESPACE_PREFIXES = FEATURES + "namespace-prefixes"; + + + /** + * Set a feature flag for the parser. + * + * <p>The only features recognized are namespaces and + * namespace-prefixes.</p> + * + * @param name The feature name, as a complete URI. + * @param value The requested feature value. + * @exception SAXNotRecognizedException If the feature + * can't be assigned or retrieved. + * @exception SAXNotSupportedException If the feature + * can't be assigned that value. + * @see org.xml.sax.XMLReader#setFeature + */ + public void setFeature (String name, boolean value) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (name.equals(NAMESPACES)) { + checkNotParsing("feature", name); + namespaces = value; + if (!namespaces && !prefixes) { + prefixes = true; + } + } else if (name.equals(NAMESPACE_PREFIXES)) { + checkNotParsing("feature", name); + prefixes = value; + if (!prefixes && !namespaces) { + namespaces = true; + } + } else { + throw new SAXNotRecognizedException("Feature: " + name); + } + } + + + /** + * Check a parser feature flag. + * + * <p>The only features recognized are namespaces and + * namespace-prefixes.</p> + * + * @param name The feature name, as a complete URI. + * @return The current feature value. + * @exception SAXNotRecognizedException If the feature + * value can't be assigned or retrieved. + * @exception SAXNotSupportedException If the + * feature is not currently readable. + * @see org.xml.sax.XMLReader#setFeature + */ + public boolean getFeature (String name) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (name.equals(NAMESPACES)) { + return namespaces; + } else if (name.equals(NAMESPACE_PREFIXES)) { + return prefixes; + } else { + throw new SAXNotRecognizedException("Feature: " + name); + } + } + + + /** + * Set a parser property. + * + * <p>No properties are currently recognized.</p> + * + * @param name The property name. + * @param value The property value. + * @exception SAXNotRecognizedException If the property + * value can't be assigned or retrieved. + * @exception SAXNotSupportedException If the property + * can't be assigned that value. + * @see org.xml.sax.XMLReader#setProperty + */ + public void setProperty (String name, Object value) + throws SAXNotRecognizedException, SAXNotSupportedException + { + throw new SAXNotRecognizedException("Property: " + name); + } + + + /** + * Get a parser property. + * + * <p>No properties are currently recognized.</p> + * + * @param name The property name. + * @return The property value. + * @exception SAXNotRecognizedException If the property + * value can't be assigned or retrieved. + * @exception SAXNotSupportedException If the property + * value is not currently readable. + * @see org.xml.sax.XMLReader#getProperty + */ + public Object getProperty (String name) + throws SAXNotRecognizedException, SAXNotSupportedException + { + throw new SAXNotRecognizedException("Property: " + name); + } + + + /** + * Set the entity resolver. + * + * @param resolver The new entity resolver. + * @see org.xml.sax.XMLReader#setEntityResolver + */ + public void setEntityResolver (EntityResolver resolver) + { + entityResolver = resolver; + } + + + /** + * Return the current entity resolver. + * + * @return The current entity resolver, or null if none was supplied. + * @see org.xml.sax.XMLReader#getEntityResolver + */ + public EntityResolver getEntityResolver () + { + return entityResolver; + } + + + /** + * Set the DTD handler. + * + * @param resolver The new DTD handler. + * @see org.xml.sax.XMLReader#setEntityResolver + */ + public void setDTDHandler (DTDHandler handler) + { + dtdHandler = handler; + } + + + /** + * Return the current DTD handler. + * + * @return The current DTD handler, or null if none was supplied. + * @see org.xml.sax.XMLReader#getEntityResolver + */ + public DTDHandler getDTDHandler () + { + return dtdHandler; + } + + + /** + * Set the content handler. + * + * @param resolver The new content handler. + * @see org.xml.sax.XMLReader#setEntityResolver + */ + public void setContentHandler (ContentHandler handler) + { + contentHandler = handler; + } + + + /** + * Return the current content handler. + * + * @return The current content handler, or null if none was supplied. + * @see org.xml.sax.XMLReader#getEntityResolver + */ + public ContentHandler getContentHandler () + { + return contentHandler; + } + + + /** + * Set the error handler. + * + * @param resolver The new error handler. + * @see org.xml.sax.XMLReader#setEntityResolver + */ + public void setErrorHandler (ErrorHandler handler) + { + errorHandler = handler; + } + + + /** + * Return the current error handler. + * + * @return The current error handler, or null if none was supplied. + * @see org.xml.sax.XMLReader#getEntityResolver + */ + public ErrorHandler getErrorHandler () + { + return errorHandler; + } + + + /** + * Parse an XML document. + * + * @param systemId The absolute URL of the document. + * @exception java.io.IOException If there is a problem reading + * the raw content of the document. + * @exception SAXException If there is a problem + * processing the document. + * @see #parse(org.xml.sax.InputSource) + * @see org.xml.sax.Parser#parse(java.lang.String) + */ + public void parse (String systemId) + throws IOException, SAXException + { + parse(new InputSource(systemId)); + } + + + /** + * Parse an XML document. + * + * @param input An input source for the document. + * @exception java.io.IOException If there is a problem reading + * the raw content of the document. + * @exception SAXException If there is a problem + * processing the document. + * @see #parse(java.lang.String) + * @see org.xml.sax.Parser#parse(org.xml.sax.InputSource) + */ + public void parse (InputSource input) + throws IOException, SAXException + { + if (parsing) { + throw new SAXException("Parser is already in use"); + } + setupParser(); + parsing = true; + try { + parser.parse(input); + } finally { + parsing = false; + } + parsing = false; + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.DocumentHandler. + //////////////////////////////////////////////////////////////////// + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 document locator event. + * + * @param locator A document locator. + * @see org.xml.sax.ContentHandler#setDocumentLocator + */ + public void setDocumentLocator (Locator locator) + { + this.locator = locator; + if (contentHandler != null) { + contentHandler.setDocumentLocator(locator); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 start document event. + * + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#startDocument + */ + public void startDocument () + throws SAXException + { + if (contentHandler != null) { + contentHandler.startDocument(); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 end document event. + * + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#endDocument + */ + public void endDocument () + throws SAXException + { + if (contentHandler != null) { + contentHandler.endDocument(); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 startElement event. + * + * <p>If necessary, perform Namespace processing.</p> + * + * @param qName The qualified (prefixed) name. + * @param qAtts The XML 1.0 attribute list (with qnames). + * @exception SAXException The client may raise a + * processing exception. + */ + public void startElement (String qName, AttributeList qAtts) + throws SAXException + { + // These are exceptions from the + // first pass; they should be + // ignored if there's a second pass, + // but reported otherwise. + Vector exceptions = null; + + // If we're not doing Namespace + // processing, dispatch this quickly. + if (!namespaces) { + if (contentHandler != null) { + attAdapter.setAttributeList(qAtts); + contentHandler.startElement("", "", qName.intern(), + attAdapter); + } + return; + } + + + // OK, we're doing Namespace processing. + nsSupport.pushContext(); + int length = qAtts.getLength(); + + // First pass: handle NS decls + for (int i = 0; i < length; i++) { + String attQName = qAtts.getName(i); + + if (!attQName.startsWith("xmlns")) + continue; + // Could be a declaration... + String prefix; + int n = attQName.indexOf(':'); + + // xmlns=... + if (n == -1 && attQName.length () == 5) { + prefix = ""; + } else if (n != 5) { + // XML namespaces spec doesn't discuss "xmlnsf:oo" + // (and similarly named) attributes ... at most, warn + continue; + } else // xmlns:foo=... + prefix = attQName.substring(n+1); + + String value = qAtts.getValue(i); + if (!nsSupport.declarePrefix(prefix, value)) { + reportError("Illegal Namespace prefix: " + prefix); + continue; + } + if (contentHandler != null) + contentHandler.startPrefixMapping(prefix, value); + } + + // Second pass: copy all relevant + // attributes into the SAX2 AttributeList + // using updated prefix bindings + atts.clear(); + for (int i = 0; i < length; i++) { + String attQName = qAtts.getName(i); + String type = qAtts.getType(i); + String value = qAtts.getValue(i); + + // Declaration? + if (attQName.startsWith("xmlns")) { + String prefix; + int n = attQName.indexOf(':'); + + if (n == -1 && attQName.length () == 5) { + prefix = ""; + } else if (n != 5) { + // XML namespaces spec doesn't discuss "xmlnsf:oo" + // (and similarly named) attributes ... ignore + prefix = null; + } else { + prefix = attQName.substring(n+1); + } + // Yes, decl: report or prune + if (prefix != null) { + if (prefixes) + atts.addAttribute("", "", attQName.intern(), + type, value); + continue; + } + } + + // Not a declaration -- report + try { + String attName[] = processName(attQName, true, true); + atts.addAttribute(attName[0], attName[1], attName[2], + type, value); + } catch (SAXException e) { + if (exceptions == null) + exceptions = new Vector(); + exceptions.addElement(e); + atts.addAttribute("", attQName, attQName, type, value); + } + } + + // now handle the deferred exception reports + if (exceptions != null && errorHandler != null) { + for (int i = 0; i < exceptions.size(); i++) + errorHandler.error((SAXParseException) + (exceptions.elementAt(i))); + } + + // OK, finally report the event. + if (contentHandler != null) { + String name[] = processName(qName, false, false); + contentHandler.startElement(name[0], name[1], name[2], atts); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 end element event. + * + * @param qName The qualified (prefixed) name. + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#endElement + */ + public void endElement (String qName) + throws SAXException + { + // If we're not doing Namespace + // processing, dispatch this quickly. + if (!namespaces) { + if (contentHandler != null) { + contentHandler.endElement("", "", qName.intern()); + } + return; + } + + // Split the name. + String names[] = processName(qName, false, false); + if (contentHandler != null) { + contentHandler.endElement(names[0], names[1], names[2]); + Enumeration prefixes = nsSupport.getDeclaredPrefixes(); + while (prefixes.hasMoreElements()) { + String prefix = (String)prefixes.nextElement(); + contentHandler.endPrefixMapping(prefix); + } + } + nsSupport.popContext(); + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 characters event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use. + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#characters + */ + public void characters (char ch[], int start, int length) + throws SAXException + { + if (contentHandler != null) { + contentHandler.characters(ch, start, length); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 ignorable whitespace event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use. + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#ignorableWhitespace + */ + public void ignorableWhitespace (char ch[], int start, int length) + throws SAXException + { + if (contentHandler != null) { + contentHandler.ignorableWhitespace(ch, start, length); + } + } + + + /** + * Adapter implementation method; do not call. + * Adapt a SAX1 processing instruction event. + * + * @param target The processing instruction target. + * @param data The remainder of the processing instruction + * @exception SAXException The client may raise a + * processing exception. + * @see org.xml.sax.DocumentHandler#processingInstruction + */ + public void processingInstruction (String target, String data) + throws SAXException + { + if (contentHandler != null) { + contentHandler.processingInstruction(target, data); + } + } + + + + //////////////////////////////////////////////////////////////////// + // Internal utility methods. + //////////////////////////////////////////////////////////////////// + + + /** + * Initialize the parser before each run. + */ + private void setupParser () + { + nsSupport.reset(); + + if (entityResolver != null) { + parser.setEntityResolver(entityResolver); + } + if (dtdHandler != null) { + parser.setDTDHandler(dtdHandler); + } + if (errorHandler != null) { + parser.setErrorHandler(errorHandler); + } + parser.setDocumentHandler(this); + locator = null; + } + + + /** + * Process a qualified (prefixed) name. + * + * <p>If the name has an undeclared prefix, use only the qname + * and make an ErrorHandler.error callback in case the app is + * interested.</p> + * + * @param qName The qualified (prefixed) name. + * @param isAttribute true if this is an attribute name. + * @return The name split into three parts. + * @exception SAXException The client may throw + * an exception if there is an error callback. + */ + private String [] processName (String qName, boolean isAttribute, + boolean useException) + throws SAXException + { + String parts[] = nsSupport.processName(qName, nameParts, + isAttribute); + if (parts == null) { + if (useException) + throw makeException("Undeclared prefix: " + qName); + reportError("Undeclared prefix: " + qName); + parts = new String[3]; + parts[0] = parts[1] = ""; + parts[2] = qName.intern(); + } + return parts; + } + + + /** + * Report a non-fatal error. + * + * @param message The error message. + * @exception SAXException The client may throw + * an exception. + */ + void reportError (String message) + throws SAXException + { + if (errorHandler != null) + errorHandler.error(makeException(message)); + } + + + /** + * Construct an exception for the current context. + * + * @param message The error message. + */ + private SAXParseException makeException (String message) + { + if (locator != null) { + return new SAXParseException(message, locator); + } else { + return new SAXParseException(message, null, null, -1, -1); + } + } + + + /** + * Throw an exception if we are parsing. + * + * <p>Use this method to detect illegal feature or + * property changes.</p> + * + * @param type The type of thing (feature or property). + * @param name The feature or property name. + * @exception SAXNotSupportedException If a + * document is currently being parsed. + */ + private void checkNotParsing (String type, String name) + throws SAXNotSupportedException + { + if (parsing) { + throw new SAXNotSupportedException("Cannot change " + + type + ' ' + + name + " while parsing"); + + } + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + private NamespaceSupport nsSupport; + private AttributeListAdapter attAdapter; + + private boolean parsing = false; + private String nameParts[] = new String[3]; + + private Parser parser = null; + + private AttributesImpl atts = null; + + // Features + private boolean namespaces = true; + private boolean prefixes = false; + + // Properties + + // Handlers + Locator locator; + + EntityResolver entityResolver = null; + DTDHandler dtdHandler = null; + ContentHandler contentHandler = null; + ErrorHandler errorHandler = null; + + + + //////////////////////////////////////////////////////////////////// + // Inner class to wrap an AttributeList when not doing NS proc. + //////////////////////////////////////////////////////////////////// + + + /** + * Adapt a SAX1 AttributeList as a SAX2 Attributes object. + * + * <p>This class is in the Public Domain, and comes with NO + * WARRANTY of any kind.</p> + * + * <p>This wrapper class is used only when Namespace support + * is disabled -- it provides pretty much a direct mapping + * from SAX1 to SAX2, except that names and types are + * interned whenever requested.</p> + */ + final class AttributeListAdapter implements Attributes + { + + /** + * Construct a new adapter. + */ + AttributeListAdapter () + { + } + + + /** + * Set the embedded AttributeList. + * + * <p>This method must be invoked before any of the others + * can be used.</p> + * + * @param The SAX1 attribute list (with qnames). + */ + void setAttributeList (AttributeList qAtts) + { + this.qAtts = qAtts; + } + + + /** + * Return the length of the attribute list. + * + * @return The number of attributes in the list. + * @see org.xml.sax.Attributes#getLength + */ + public int getLength () + { + return qAtts.getLength(); + } + + + /** + * Return the Namespace URI of the specified attribute. + * + * @param The attribute's index. + * @return Always the empty string. + * @see org.xml.sax.Attributes#getURI + */ + public String getURI (int i) + { + return ""; + } + + + /** + * Return the local name of the specified attribute. + * + * @param The attribute's index. + * @return Always the empty string. + * @see org.xml.sax.Attributes#getLocalName + */ + public String getLocalName (int i) + { + return ""; + } + + + /** + * Return the qualified (prefixed) name of the specified attribute. + * + * @param The attribute's index. + * @return The attribute's qualified name, internalized. + */ + public String getQName (int i) + { + return qAtts.getName(i).intern(); + } + + + /** + * Return the type of the specified attribute. + * + * @param The attribute's index. + * @return The attribute's type as an internalized string. + */ + public String getType (int i) + { + return qAtts.getType(i).intern(); + } + + + /** + * Return the value of the specified attribute. + * + * @param The attribute's index. + * @return The attribute's value. + */ + public String getValue (int i) + { + return qAtts.getValue(i); + } + + + /** + * Look up an attribute index by Namespace name. + * + * @param uri The Namespace URI or the empty string. + * @param localName The local name. + * @return The attributes index, or -1 if none was found. + * @see org.xml.sax.Attributes#getIndex(java.lang.String,java.lang.String) + */ + public int getIndex (String uri, String localName) + { + return -1; + } + + + /** + * Look up an attribute index by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attributes index, or -1 if none was found. + * @see org.xml.sax.Attributes#getIndex(java.lang.String) + */ + public int getIndex (String qName) + { + int max = atts.getLength(); + for (int i = 0; i < max; i++) { + if (qAtts.getName(i).equals(qName)) { + return i; + } + } + return -1; + } + + + /** + * Look up the type of an attribute by Namespace name. + * + * @param uri The Namespace URI + * @param localName The local name. + * @return The attribute's type as an internalized string. + */ + public String getType (String uri, String localName) + { + return null; + } + + + /** + * Look up the type of an attribute by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attribute's type as an internalized string. + */ + public String getType (String qName) + { + return qAtts.getType(qName).intern(); + } + + + /** + * Look up the value of an attribute by Namespace name. + * + * @param uri The Namespace URI + * @param localName The local name. + * @return The attribute's value. + */ + public String getValue (String uri, String localName) + { + return null; + } + + + /** + * Look up the value of an attribute by qualified (prefixed) name. + * + * @param qName The qualified name. + * @return The attribute's value. + */ + public String getValue (String qName) + { + return qAtts.getValue(qName); + } + + private AttributeList qAtts; + } +} + +// end of ParserAdapter.java diff --git a/libjava/org/xml/sax/helpers/ParserFactory.java b/libjava/org/xml/sax/helpers/ParserFactory.java index 9ca7b55002f..acedfd13ae4 100644 --- a/libjava/org/xml/sax/helpers/ParserFactory.java +++ b/libjava/org/xml/sax/helpers/ParserFactory.java @@ -1,129 +1,129 @@ -// SAX parser factory.
-// No warranty; no copyright -- use this as you will.
-// $Id: ParserFactory.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import java.lang.ClassNotFoundException;
-import java.lang.IllegalAccessException;
-import java.lang.InstantiationException;
-import java.lang.SecurityException;
-import java.lang.ClassCastException;
-
-import org.xml.sax.Parser;
-
-
-/**
- * Java-specific class for dynamically loading SAX parsers.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p><strong>Note:</strong> This class is designed to work with the now-deprecated
- * SAX1 {@link org.xml.sax.Parser Parser} class. SAX2 applications should use
- * {@link org.xml.sax.helpers.XMLReaderFactory XMLReaderFactory} instead.</p>
- *
- * <p>ParserFactory is not part of the platform-independent definition
- * of SAX; it is an additional convenience class designed
- * specifically for Java XML application writers. SAX applications
- * can use the static methods in this class to allocate a SAX parser
- * dynamically at run-time based either on the value of the
- * `org.xml.sax.parser' system property or on a string containing the class
- * name.</p>
- *
- * <p>Note that the application still requires an XML parser that
- * implements SAX1.</p>
- *
- * @deprecated This class works with the deprecated
- * {@link org.xml.sax.Parser Parser}
- * interface.
- * @since SAX 1.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.Parser
- * @see java.lang.Class
- */
-public class ParserFactory {
-
-
- /**
- * Private null constructor.
- */
- private ParserFactory ()
- {
- }
-
-
- /**
- * Create a new SAX parser using the `org.xml.sax.parser' system property.
- *
- * <p>The named class must exist and must implement the
- * {@link org.xml.sax.Parser Parser} interface.</p>
- *
- * @exception java.lang.NullPointerException There is no value
- * for the `org.xml.sax.parser' system property.
- * @exception java.lang.ClassNotFoundException The SAX parser
- * class was not found (check your CLASSPATH).
- * @exception IllegalAccessException The SAX parser class was
- * found, but you do not have permission to load
- * it.
- * @exception InstantiationException The SAX parser class was
- * found but could not be instantiated.
- * @exception java.lang.ClassCastException The SAX parser class
- * was found and instantiated, but does not implement
- * org.xml.sax.Parser.
- * @see #makeParser(java.lang.String)
- * @see org.xml.sax.Parser
- */
- public static Parser makeParser ()
- throws ClassNotFoundException,
- IllegalAccessException,
- InstantiationException,
- NullPointerException,
- ClassCastException
- {
- String className = System.getProperty("org.xml.sax.parser");
- if (className == null) {
- throw new NullPointerException("No value for sax.parser property");
- } else {
- return makeParser(className);
- }
- }
-
-
- /**
- * Create a new SAX parser object using the class name provided.
- *
- * <p>The named class must exist and must implement the
- * {@link org.xml.sax.Parser Parser} interface.</p>
- *
- * @param className A string containing the name of the
- * SAX parser class.
- * @exception java.lang.ClassNotFoundException The SAX parser
- * class was not found (check your CLASSPATH).
- * @exception IllegalAccessException The SAX parser class was
- * found, but you do not have permission to load
- * it.
- * @exception InstantiationException The SAX parser class was
- * found but could not be instantiated.
- * @exception java.lang.ClassCastException The SAX parser class
- * was found and instantiated, but does not implement
- * org.xml.sax.Parser.
- * @see #makeParser()
- * @see org.xml.sax.Parser
- */
- public static Parser makeParser (String className)
- throws ClassNotFoundException,
- IllegalAccessException,
- InstantiationException,
- ClassCastException
- {
- return (Parser)(Class.forName(className).newInstance());
- }
-
-}
-
-// end of ParserFactory.java
+// SAX parser factory. +// http://www.saxproject.org +// No warranty; no copyright -- use this as you will. +// $Id: ParserFactory.java,v 1.4.2.3 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.lang.ClassNotFoundException; +import java.lang.IllegalAccessException; +import java.lang.InstantiationException; +import java.lang.SecurityException; +import java.lang.ClassCastException; + +import org.xml.sax.Parser; + + +/** + * Java-specific class for dynamically loading SAX parsers. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p><strong>Note:</strong> This class is designed to work with the now-deprecated + * SAX1 {@link org.xml.sax.Parser Parser} class. SAX2 applications should use + * {@link org.xml.sax.helpers.XMLReaderFactory XMLReaderFactory} instead.</p> + * + * <p>ParserFactory is not part of the platform-independent definition + * of SAX; it is an additional convenience class designed + * specifically for Java XML application writers. SAX applications + * can use the static methods in this class to allocate a SAX parser + * dynamically at run-time based either on the value of the + * `org.xml.sax.parser' system property or on a string containing the class + * name.</p> + * + * <p>Note that the application still requires an XML parser that + * implements SAX1.</p> + * + * @deprecated This class works with the deprecated + * {@link org.xml.sax.Parser Parser} + * interface. + * @since SAX 1.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + */ +public class ParserFactory { + + + /** + * Private null constructor. + */ + private ParserFactory () + { + } + + + /** + * Create a new SAX parser using the `org.xml.sax.parser' system property. + * + * <p>The named class must exist and must implement the + * {@link org.xml.sax.Parser Parser} interface.</p> + * + * @exception java.lang.NullPointerException There is no value + * for the `org.xml.sax.parser' system property. + * @exception java.lang.ClassNotFoundException The SAX parser + * class was not found (check your CLASSPATH). + * @exception IllegalAccessException The SAX parser class was + * found, but you do not have permission to load + * it. + * @exception InstantiationException The SAX parser class was + * found but could not be instantiated. + * @exception java.lang.ClassCastException The SAX parser class + * was found and instantiated, but does not implement + * org.xml.sax.Parser. + * @see #makeParser(java.lang.String) + * @see org.xml.sax.Parser + */ + public static Parser makeParser () + throws ClassNotFoundException, + IllegalAccessException, + InstantiationException, + NullPointerException, + ClassCastException + { + String className = System.getProperty("org.xml.sax.parser"); + if (className == null) { + throw new NullPointerException("No value for sax.parser property"); + } else { + return makeParser(className); + } + } + + + /** + * Create a new SAX parser object using the class name provided. + * + * <p>The named class must exist and must implement the + * {@link org.xml.sax.Parser Parser} interface.</p> + * + * @param className A string containing the name of the + * SAX parser class. + * @exception java.lang.ClassNotFoundException The SAX parser + * class was not found (check your CLASSPATH). + * @exception IllegalAccessException The SAX parser class was + * found, but you do not have permission to load + * it. + * @exception InstantiationException The SAX parser class was + * found but could not be instantiated. + * @exception java.lang.ClassCastException The SAX parser class + * was found and instantiated, but does not implement + * org.xml.sax.Parser. + * @see #makeParser() + * @see org.xml.sax.Parser + */ + public static Parser makeParser (String className) + throws ClassNotFoundException, + IllegalAccessException, + InstantiationException, + ClassCastException + { + return (Parser) NewInstance.newInstance ( + NewInstance.getClassLoader (), className); + } + +} + diff --git a/libjava/org/xml/sax/helpers/XMLFilterImpl.java b/libjava/org/xml/sax/helpers/XMLFilterImpl.java index 5b1afaf6c2f..2f848089131 100644 --- a/libjava/org/xml/sax/helpers/XMLFilterImpl.java +++ b/libjava/org/xml/sax/helpers/XMLFilterImpl.java @@ -1,769 +1,714 @@ -// XMLFilterImpl.java - base SAX2 filter implementation.
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the Public Domain.
-
-// $Id: XMLFilterImpl.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import java.io.IOException;
-
-import org.xml.sax.XMLReader;
-import org.xml.sax.XMLFilter;
-import org.xml.sax.InputSource;
-import org.xml.sax.Locator;
-import org.xml.sax.Attributes;
-import org.xml.sax.EntityResolver;
-import org.xml.sax.DTDHandler;
-import org.xml.sax.ContentHandler;
-import org.xml.sax.ErrorHandler;
-import org.xml.sax.SAXException;
-import org.xml.sax.SAXParseException;
-import org.xml.sax.SAXNotSupportedException;
-import org.xml.sax.SAXNotRecognizedException;
-
-
-/**
- * Base class for deriving an XML filter.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class is designed to sit between an {@link org.xml.sax.XMLReader
- * XMLReader} and the client application's event handlers. By default, it
- * does nothing but pass requests up to the reader and events
- * on to the handlers unmodified, but subclasses can override
- * specific methods to modify the event stream or the configuration
- * requests as they pass through.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.XMLFilter
- * @see org.xml.sax.XMLReader
- * @see org.xml.sax.EntityResolver
- * @see org.xml.sax.DTDHandler
- * @see org.xml.sax.ContentHandler
- * @see org.xml.sax.ErrorHandler
- */
-public class XMLFilterImpl
- implements XMLFilter, EntityResolver, DTDHandler, ContentHandler, ErrorHandler
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Constructors.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Construct an empty XML filter, with no parent.
- *
- * <p>This filter will have no parent: you must assign a parent
- * before you start a parse or do any configuration with
- * setFeature or setProperty.</p>
- *
- * @see org.xml.sax.XMLReader#setFeature
- * @see org.xml.sax.XMLReader#setProperty
- */
- public XMLFilterImpl ()
- {
- super();
- }
-
-
- /**
- * Construct an XML filter with the specified parent.
- *
- * @see #setParent
- * @see #getParent
- */
- public XMLFilterImpl (XMLReader parent)
- {
- super();
- setParent(parent);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.XMLFilter.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the parent reader.
- *
- * <p>This is the {@link org.xml.sax.XMLReader XMLReader} from which
- * this filter will obtain its events and to which it will pass its
- * configuration requests. The parent may itself be another filter.</p>
- *
- * <p>If there is no parent reader set, any attempt to parse
- * or to set or get a feature or property will fail.</p>
- *
- * @param parent The parent XML reader.
- * @exception java.lang.NullPointerException If the parent is null.
- * @see #getParent
- */
- public void setParent (XMLReader parent)
- {
- if (parent == null) {
- throw new NullPointerException("Null parent");
- }
- this.parent = parent;
- }
-
-
- /**
- * Get the parent reader.
- *
- * @return The parent XML reader, or null if none is set.
- * @see #setParent
- */
- public XMLReader getParent ()
- {
- return parent;
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.XMLReader.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the state of a feature.
- *
- * <p>This will always fail if the parent is null.</p>
- *
- * @param name The feature name.
- * @param state The requested feature state.
- * @exception org.xml.sax.SAXNotRecognizedException When the
- * XMLReader does not recognize the feature name.
- * @exception org.xml.sax.SAXNotSupportedException When the
- * XMLReader recognizes the feature name but
- * cannot set the requested value.
- * @see org.xml.sax.XMLReader#setFeature
- */
- public void setFeature (String name, boolean state)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (parent != null) {
- parent.setFeature(name, state);
- } else {
- throw new SAXNotRecognizedException("Feature: " + name);
- }
- }
-
-
- /**
- * Look up the state of a feature.
- *
- * <p>This will always fail if the parent is null.</p>
- *
- * @param name The feature name.
- * @return The current state of the feature.
- * @exception org.xml.sax.SAXNotRecognizedException When the
- * XMLReader does not recognize the feature name.
- * @exception org.xml.sax.SAXNotSupportedException When the
- * XMLReader recognizes the feature name but
- * cannot determine its state at this time.
- * @see org.xml.sax.XMLReader#getFeature
- */
- public boolean getFeature (String name)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (parent != null) {
- return parent.getFeature(name);
- } else {
- throw new SAXNotRecognizedException("Feature: " + name);
- }
- }
-
-
- /**
- * Set the value of a property.
- *
- * <p>This will always fail if the parent is null.</p>
- *
- * @param name The property name.
- * @param state The requested property value.
- * @exception org.xml.sax.SAXNotRecognizedException When the
- * XMLReader does not recognize the property name.
- * @exception org.xml.sax.SAXNotSupportedException When the
- * XMLReader recognizes the property name but
- * cannot set the requested value.
- * @see org.xml.sax.XMLReader#setProperty
- */
- public void setProperty (String name, Object value)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (parent != null) {
- parent.setProperty(name, value);
- } else {
- throw new SAXNotRecognizedException("Property: " + name);
- }
- }
-
-
- /**
- * Look up the value of a property.
- *
- * @param name The property name.
- * @return The current value of the property.
- * @exception org.xml.sax.SAXNotRecognizedException When the
- * XMLReader does not recognize the feature name.
- * @exception org.xml.sax.SAXNotSupportedException When the
- * XMLReader recognizes the property name but
- * cannot determine its value at this time.
- * @see org.xml.sax.XMLReader#setFeature
- */
- public Object getProperty (String name)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if (parent != null) {
- return parent.getProperty(name);
- } else {
- throw new SAXNotRecognizedException("Property: " + name);
- }
- }
-
-
- /**
- * Set the entity resolver.
- *
- * @param resolver The new entity resolver.
- * @exception java.lang.NullPointerException If the resolver
- * is null.
- * @see org.xml.sax.XMLReader#setEntityResolver
- */
- public void setEntityResolver (EntityResolver resolver)
- {
- if (resolver == null) {
- throw new NullPointerException("Null entity resolver");
- } else {
- entityResolver = resolver;
- }
- }
-
-
- /**
- * Get the current entity resolver.
- *
- * @return The current entity resolver, or null if none was set.
- * @see org.xml.sax.XMLReader#getEntityResolver
- */
- public EntityResolver getEntityResolver ()
- {
- return entityResolver;
- }
-
-
- /**
- * Set the DTD event handler.
- *
- * @param resolver The new DTD handler.
- * @exception java.lang.NullPointerException If the handler
- * is null.
- * @see org.xml.sax.XMLReader#setDTDHandler
- */
- public void setDTDHandler (DTDHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null DTD handler");
- } else {
- dtdHandler = handler;
- }
- }
-
-
- /**
- * Get the current DTD event handler.
- *
- * @return The current DTD handler, or null if none was set.
- * @see org.xml.sax.XMLReader#getDTDHandler
- */
- public DTDHandler getDTDHandler ()
- {
- return dtdHandler;
- }
-
-
- /**
- * Set the content event handler.
- *
- * @param resolver The new content handler.
- * @exception java.lang.NullPointerException If the handler
- * is null.
- * @see org.xml.sax.XMLReader#setContentHandler
- */
- public void setContentHandler (ContentHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null content handler");
- } else {
- contentHandler = handler;
- }
- }
-
-
- /**
- * Get the content event handler.
- *
- * @return The current content handler, or null if none was set.
- * @see org.xml.sax.XMLReader#getContentHandler
- */
- public ContentHandler getContentHandler ()
- {
- return contentHandler;
- }
-
-
- /**
- * Set the error event handler.
- *
- * @param handle The new error handler.
- * @exception java.lang.NullPointerException If the handler
- * is null.
- * @see org.xml.sax.XMLReader#setErrorHandler
- */
- public void setErrorHandler (ErrorHandler handler)
- {
- if (handler == null) {
- throw new NullPointerException("Null error handler");
- } else {
- errorHandler = handler;
- }
- }
-
-
- /**
- * Get the current error event handler.
- *
- * @return The current error handler, or null if none was set.
- * @see org.xml.sax.XMLReader#getErrorHandler
- */
- public ErrorHandler getErrorHandler ()
- {
- return errorHandler;
- }
-
-
- /**
- * Parse a document.
- *
- * @param input The input source for the document entity.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @exception java.io.IOException An IO exception from the parser,
- * possibly from a byte stream or character stream
- * supplied by the application.
- * @see org.xml.sax.XMLReader#parse(org.xml.sax.InputSource)
- */
- public void parse (InputSource input)
- throws SAXException, IOException
- {
- setupParse();
- parent.parse(input);
- }
-
-
- /**
- * Parse a document.
- *
- * @param systemId The system identifier as a fully-qualified URI.
- * @exception org.xml.sax.SAXException Any SAX exception, possibly
- * wrapping another exception.
- * @exception java.io.IOException An IO exception from the parser,
- * possibly from a byte stream or character stream
- * supplied by the application.
- * @see org.xml.sax.XMLReader#parse(java.lang.String)
- */
- public void parse (String systemId)
- throws SAXException, IOException
- {
- parse(new InputSource(systemId));
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.EntityResolver.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Filter an external entity resolution.
- *
- * @param publicId The entity's public identifier, or null.
- * @param systemId The entity's system identifier.
- * @return A new InputSource or null for the default.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @exception java.io.IOException The client may throw an
- * I/O-related exception while obtaining the
- * new InputSource.
- * @see org.xml.sax.EntityResolver#resolveEntity
- */
- public InputSource resolveEntity (String publicId, String systemId)
- throws SAXException, IOException
- {
- if (entityResolver != null) {
- return entityResolver.resolveEntity(publicId, systemId);
- } else {
- return null;
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.DTDHandler.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Filter a notation declaration event.
- *
- * @param name The notation name.
- * @param publicId The notation's public identifier, or null.
- * @param systemId The notation's system identifier, or null.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.DTDHandler#notationDecl
- */
- public void notationDecl (String name, String publicId, String systemId)
- throws SAXException
- {
- if (dtdHandler != null) {
- dtdHandler.notationDecl(name, publicId, systemId);
- }
- }
-
-
- /**
- * Filter an unparsed entity declaration event.
- *
- * @param name The entity name.
- * @param publicId The entity's public identifier, or null.
- * @param systemId The entity's system identifier, or null.
- * @param notationName The name of the associated notation.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.DTDHandler#unparsedEntityDecl
- */
- public void unparsedEntityDecl (String name, String publicId,
- String systemId, String notationName)
- throws SAXException
- {
- if (dtdHandler != null) {
- dtdHandler.unparsedEntityDecl(name, publicId, systemId,
- notationName);
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.ContentHandler.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Filter a new document locator event.
- *
- * @param locator The document locator.
- * @see org.xml.sax.ContentHandler#setDocumentLocator
- */
- public void setDocumentLocator (Locator locator)
- {
- this.locator = locator;
- if (contentHandler != null) {
- contentHandler.setDocumentLocator(locator);
- }
- }
-
-
- /**
- * Filter a start document event.
- *
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#startDocument
- */
- public void startDocument ()
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.startDocument();
- }
- }
-
-
- /**
- * Filter an end document event.
- *
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#endDocument
- */
- public void endDocument ()
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.endDocument();
- }
- }
-
-
- /**
- * Filter a start Namespace prefix mapping event.
- *
- * @param prefix The Namespace prefix.
- * @param uri The Namespace URI.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#startPrefixMapping
- */
- public void startPrefixMapping (String prefix, String uri)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.startPrefixMapping(prefix, uri);
- }
- }
-
-
- /**
- * Filter an end Namespace prefix mapping event.
- *
- * @param prefix The Namespace prefix.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#endPrefixMapping
- */
- public void endPrefixMapping (String prefix)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.endPrefixMapping(prefix);
- }
- }
-
-
- /**
- * Filter a start element event.
- *
- * @param uri The element's Namespace URI, or the empty string.
- * @param localName The element's local name, or the empty string.
- * @param qName The element's qualified (prefixed) name, or the empty
- * string.
- * @param atts The element's attributes.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#startElement
- */
- public void startElement (String uri, String localName, String qName,
- Attributes atts)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.startElement(uri, localName, qName, atts);
- }
- }
-
-
- /**
- * Filter an end element event.
- *
- * @param uri The element's Namespace URI, or the empty string.
- * @param localName The element's local name, or the empty string.
- * @param qName The element's qualified (prefixed) name, or the empty
- * string.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#endElement
- */
- public void endElement (String uri, String localName, String qName)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.endElement(uri, localName, qName);
- }
- }
-
-
- /**
- * Filter a character data event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use from the array.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#characters
- */
- public void characters (char ch[], int start, int length)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.characters(ch, start, length);
- }
- }
-
-
- /**
- * Filter an ignorable whitespace event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use from the array.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#ignorableWhitespace
- */
- public void ignorableWhitespace (char ch[], int start, int length)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.ignorableWhitespace(ch, start, length);
- }
- }
-
-
- /**
- * Filter a processing instruction event.
- *
- * @param target The processing instruction target.
- * @param data The text following the target.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#processingInstruction
- */
- public void processingInstruction (String target, String data)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.processingInstruction(target, data);
- }
- }
-
-
- /**
- * Filter a skipped entity event.
- *
- * @param name The name of the skipped entity.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ContentHandler#skippedEntity
- */
- public void skippedEntity (String name)
- throws SAXException
- {
- if (contentHandler != null) {
- contentHandler.skippedEntity(name);
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.ErrorHandler.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Filter a warning event.
- *
- * @param e The nwarning as an exception.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ErrorHandler#warning
- */
- public void warning (SAXParseException e)
- throws SAXException
- {
- if (errorHandler != null) {
- errorHandler.warning(e);
- }
- }
-
-
- /**
- * Filter an error event.
- *
- * @param e The error as an exception.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ErrorHandler#error
- */
- public void error (SAXParseException e)
- throws SAXException
- {
- if (errorHandler != null) {
- errorHandler.error(e);
- }
- }
-
-
- /**
- * Filter a fatal error event.
- *
- * @param e The error as an exception.
- * @exception org.xml.sax.SAXException The client may throw
- * an exception during processing.
- * @see org.xml.sax.ErrorHandler#fatalError
- */
- public void fatalError (SAXParseException e)
- throws SAXException
- {
- if (errorHandler != null) {
- errorHandler.fatalError(e);
- }
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal methods.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set up before a parse.
- *
- * <p>Before every parse, check whether the parent is
- * non-null, and re-register the filter for all of the
- * events.</p>
- */
- private void setupParse ()
- {
- if (parent == null) {
- throw new NullPointerException("No parent for filter");
- }
- parent.setEntityResolver(this);
- parent.setDTDHandler(this);
- parent.setContentHandler(this);
- parent.setErrorHandler(this);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- private XMLReader parent = null;
- private Locator locator = null;
- private EntityResolver entityResolver = null;
- private DTDHandler dtdHandler = null;
- private ContentHandler contentHandler = null;
- private ErrorHandler errorHandler = null;
-
-}
-
-// end of XMLFilterImpl.java
+// XMLFilterImpl.java - base SAX2 filter implementation. +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the Public Domain. + +// $Id: XMLFilterImpl.java,v 1.3.2.7 2002/01/29 21:34:14 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.io.IOException; + +import org.xml.sax.XMLReader; +import org.xml.sax.XMLFilter; +import org.xml.sax.InputSource; +import org.xml.sax.Locator; +import org.xml.sax.Attributes; +import org.xml.sax.EntityResolver; +import org.xml.sax.DTDHandler; +import org.xml.sax.ContentHandler; +import org.xml.sax.ErrorHandler; +import org.xml.sax.SAXException; +import org.xml.sax.SAXParseException; +import org.xml.sax.SAXNotSupportedException; +import org.xml.sax.SAXNotRecognizedException; + + +/** + * Base class for deriving an XML filter. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class is designed to sit between an {@link org.xml.sax.XMLReader + * XMLReader} and the client application's event handlers. By default, it + * does nothing but pass requests up to the reader and events + * on to the handlers unmodified, but subclasses can override + * specific methods to modify the event stream or the configuration + * requests as they pass through.</p> + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.XMLFilter + * @see org.xml.sax.XMLReader + * @see org.xml.sax.EntityResolver + * @see org.xml.sax.DTDHandler + * @see org.xml.sax.ContentHandler + * @see org.xml.sax.ErrorHandler + */ +public class XMLFilterImpl + implements XMLFilter, EntityResolver, DTDHandler, ContentHandler, ErrorHandler +{ + + + //////////////////////////////////////////////////////////////////// + // Constructors. + //////////////////////////////////////////////////////////////////// + + + /** + * Construct an empty XML filter, with no parent. + * + * <p>This filter will have no parent: you must assign a parent + * before you start a parse or do any configuration with + * setFeature or setProperty, unless you use this as a pure event + * consumer rather than as an {@link XMLReader}.</p> + * + * @see org.xml.sax.XMLReader#setFeature + * @see org.xml.sax.XMLReader#setProperty + * @see #setParent + */ + public XMLFilterImpl () + { + super(); + } + + + /** + * Construct an XML filter with the specified parent. + * + * @see #setParent + * @see #getParent + */ + public XMLFilterImpl (XMLReader parent) + { + super(); + setParent(parent); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.XMLFilter. + //////////////////////////////////////////////////////////////////// + + + /** + * Set the parent reader. + * + * <p>This is the {@link org.xml.sax.XMLReader XMLReader} from which + * this filter will obtain its events and to which it will pass its + * configuration requests. The parent may itself be another filter.</p> + * + * <p>If there is no parent reader set, any attempt to parse + * or to set or get a feature or property will fail.</p> + * + * @param parent The parent XML reader. + * @see #getParent + */ + public void setParent (XMLReader parent) + { + this.parent = parent; + } + + + /** + * Get the parent reader. + * + * @return The parent XML reader, or null if none is set. + * @see #setParent + */ + public XMLReader getParent () + { + return parent; + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.XMLReader. + //////////////////////////////////////////////////////////////////// + + + /** + * Set the value of a feature. + * + * <p>This will always fail if the parent is null.</p> + * + * @param name The feature name. + * @param value The requested feature value. + * @exception org.xml.sax.SAXNotRecognizedException If the feature + * value can't be assigned or retrieved from the parent. + * @exception org.xml.sax.SAXNotSupportedException When the + * parent recognizes the feature name but + * cannot set the requested value. + */ + public void setFeature (String name, boolean value) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (parent != null) { + parent.setFeature(name, value); + } else { + throw new SAXNotRecognizedException("Feature: " + name); + } + } + + + /** + * Look up the value of a feature. + * + * <p>This will always fail if the parent is null.</p> + * + * @param name The feature name. + * @return The current value of the feature. + * @exception org.xml.sax.SAXNotRecognizedException If the feature + * value can't be assigned or retrieved from the parent. + * @exception org.xml.sax.SAXNotSupportedException When the + * parent recognizes the feature name but + * cannot determine its value at this time. + */ + public boolean getFeature (String name) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (parent != null) { + return parent.getFeature(name); + } else { + throw new SAXNotRecognizedException("Feature: " + name); + } + } + + + /** + * Set the value of a property. + * + * <p>This will always fail if the parent is null.</p> + * + * @param name The property name. + * @param value The requested property value. + * @exception org.xml.sax.SAXNotRecognizedException If the property + * value can't be assigned or retrieved from the parent. + * @exception org.xml.sax.SAXNotSupportedException When the + * parent recognizes the property name but + * cannot set the requested value. + */ + public void setProperty (String name, Object value) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (parent != null) { + parent.setProperty(name, value); + } else { + throw new SAXNotRecognizedException("Property: " + name); + } + } + + + /** + * Look up the value of a property. + * + * @param name The property name. + * @return The current value of the property. + * @exception org.xml.sax.SAXNotRecognizedException If the property + * value can't be assigned or retrieved from the parent. + * @exception org.xml.sax.SAXNotSupportedException When the + * parent recognizes the property name but + * cannot determine its value at this time. + */ + public Object getProperty (String name) + throws SAXNotRecognizedException, SAXNotSupportedException + { + if (parent != null) { + return parent.getProperty(name); + } else { + throw new SAXNotRecognizedException("Property: " + name); + } + } + + + /** + * Set the entity resolver. + * + * @param resolver The new entity resolver. + */ + public void setEntityResolver (EntityResolver resolver) + { + entityResolver = resolver; + } + + + /** + * Get the current entity resolver. + * + * @return The current entity resolver, or null if none was set. + */ + public EntityResolver getEntityResolver () + { + return entityResolver; + } + + + /** + * Set the DTD event handler. + * + * @param resolver The new DTD handler. + */ + public void setDTDHandler (DTDHandler handler) + { + dtdHandler = handler; + } + + + /** + * Get the current DTD event handler. + * + * @return The current DTD handler, or null if none was set. + */ + public DTDHandler getDTDHandler () + { + return dtdHandler; + } + + + /** + * Set the content event handler. + * + * @param resolver The new content handler. + */ + public void setContentHandler (ContentHandler handler) + { + contentHandler = handler; + } + + + /** + * Get the content event handler. + * + * @return The current content handler, or null if none was set. + */ + public ContentHandler getContentHandler () + { + return contentHandler; + } + + + /** + * Set the error event handler. + * + * @param handle The new error handler. + */ + public void setErrorHandler (ErrorHandler handler) + { + errorHandler = handler; + } + + + /** + * Get the current error event handler. + * + * @return The current error handler, or null if none was set. + */ + public ErrorHandler getErrorHandler () + { + return errorHandler; + } + + + /** + * Parse a document. + * + * @param input The input source for the document entity. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @exception java.io.IOException An IO exception from the parser, + * possibly from a byte stream or character stream + * supplied by the application. + */ + public void parse (InputSource input) + throws SAXException, IOException + { + setupParse(); + parent.parse(input); + } + + + /** + * Parse a document. + * + * @param systemId The system identifier as a fully-qualified URI. + * @exception org.xml.sax.SAXException Any SAX exception, possibly + * wrapping another exception. + * @exception java.io.IOException An IO exception from the parser, + * possibly from a byte stream or character stream + * supplied by the application. + */ + public void parse (String systemId) + throws SAXException, IOException + { + parse(new InputSource(systemId)); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.EntityResolver. + //////////////////////////////////////////////////////////////////// + + + /** + * Filter an external entity resolution. + * + * @param publicId The entity's public identifier, or null. + * @param systemId The entity's system identifier. + * @return A new InputSource or null for the default. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + * @exception java.io.IOException The client may throw an + * I/O-related exception while obtaining the + * new InputSource. + */ + public InputSource resolveEntity (String publicId, String systemId) + throws SAXException, IOException + { + if (entityResolver != null) { + return entityResolver.resolveEntity(publicId, systemId); + } else { + return null; + } + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.DTDHandler. + //////////////////////////////////////////////////////////////////// + + + /** + * Filter a notation declaration event. + * + * @param name The notation name. + * @param publicId The notation's public identifier, or null. + * @param systemId The notation's system identifier, or null. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void notationDecl (String name, String publicId, String systemId) + throws SAXException + { + if (dtdHandler != null) { + dtdHandler.notationDecl(name, publicId, systemId); + } + } + + + /** + * Filter an unparsed entity declaration event. + * + * @param name The entity name. + * @param publicId The entity's public identifier, or null. + * @param systemId The entity's system identifier, or null. + * @param notationName The name of the associated notation. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void unparsedEntityDecl (String name, String publicId, + String systemId, String notationName) + throws SAXException + { + if (dtdHandler != null) { + dtdHandler.unparsedEntityDecl(name, publicId, systemId, + notationName); + } + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.ContentHandler. + //////////////////////////////////////////////////////////////////// + + + /** + * Filter a new document locator event. + * + * @param locator The document locator. + */ + public void setDocumentLocator (Locator locator) + { + this.locator = locator; + if (contentHandler != null) { + contentHandler.setDocumentLocator(locator); + } + } + + + /** + * Filter a start document event. + * + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void startDocument () + throws SAXException + { + if (contentHandler != null) { + contentHandler.startDocument(); + } + } + + + /** + * Filter an end document event. + * + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void endDocument () + throws SAXException + { + if (contentHandler != null) { + contentHandler.endDocument(); + } + } + + + /** + * Filter a start Namespace prefix mapping event. + * + * @param prefix The Namespace prefix. + * @param uri The Namespace URI. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void startPrefixMapping (String prefix, String uri) + throws SAXException + { + if (contentHandler != null) { + contentHandler.startPrefixMapping(prefix, uri); + } + } + + + /** + * Filter an end Namespace prefix mapping event. + * + * @param prefix The Namespace prefix. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void endPrefixMapping (String prefix) + throws SAXException + { + if (contentHandler != null) { + contentHandler.endPrefixMapping(prefix); + } + } + + + /** + * Filter a start element event. + * + * @param uri The element's Namespace URI, or the empty string. + * @param localName The element's local name, or the empty string. + * @param qName The element's qualified (prefixed) name, or the empty + * string. + * @param atts The element's attributes. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void startElement (String uri, String localName, String qName, + Attributes atts) + throws SAXException + { + if (contentHandler != null) { + contentHandler.startElement(uri, localName, qName, atts); + } + } + + + /** + * Filter an end element event. + * + * @param uri The element's Namespace URI, or the empty string. + * @param localName The element's local name, or the empty string. + * @param qName The element's qualified (prefixed) name, or the empty + * string. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void endElement (String uri, String localName, String qName) + throws SAXException + { + if (contentHandler != null) { + contentHandler.endElement(uri, localName, qName); + } + } + + + /** + * Filter a character data event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use from the array. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void characters (char ch[], int start, int length) + throws SAXException + { + if (contentHandler != null) { + contentHandler.characters(ch, start, length); + } + } + + + /** + * Filter an ignorable whitespace event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use from the array. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void ignorableWhitespace (char ch[], int start, int length) + throws SAXException + { + if (contentHandler != null) { + contentHandler.ignorableWhitespace(ch, start, length); + } + } + + + /** + * Filter a processing instruction event. + * + * @param target The processing instruction target. + * @param data The text following the target. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void processingInstruction (String target, String data) + throws SAXException + { + if (contentHandler != null) { + contentHandler.processingInstruction(target, data); + } + } + + + /** + * Filter a skipped entity event. + * + * @param name The name of the skipped entity. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void skippedEntity (String name) + throws SAXException + { + if (contentHandler != null) { + contentHandler.skippedEntity(name); + } + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.ErrorHandler. + //////////////////////////////////////////////////////////////////// + + + /** + * Filter a warning event. + * + * @param e The warning as an exception. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void warning (SAXParseException e) + throws SAXException + { + if (errorHandler != null) { + errorHandler.warning(e); + } + } + + + /** + * Filter an error event. + * + * @param e The error as an exception. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void error (SAXParseException e) + throws SAXException + { + if (errorHandler != null) { + errorHandler.error(e); + } + } + + + /** + * Filter a fatal error event. + * + * @param e The error as an exception. + * @exception org.xml.sax.SAXException The client may throw + * an exception during processing. + */ + public void fatalError (SAXParseException e) + throws SAXException + { + if (errorHandler != null) { + errorHandler.fatalError(e); + } + } + + + + //////////////////////////////////////////////////////////////////// + // Internal methods. + //////////////////////////////////////////////////////////////////// + + + /** + * Set up before a parse. + * + * <p>Before every parse, check whether the parent is + * non-null, and re-register the filter for all of the + * events.</p> + */ + private void setupParse () + { + if (parent == null) { + throw new NullPointerException("No parent for filter"); + } + parent.setEntityResolver(this); + parent.setDTDHandler(this); + parent.setContentHandler(this); + parent.setErrorHandler(this); + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + private XMLReader parent = null; + private Locator locator = null; + private EntityResolver entityResolver = null; + private DTDHandler dtdHandler = null; + private ContentHandler contentHandler = null; + private ErrorHandler errorHandler = null; + +} + +// end of XMLFilterImpl.java diff --git a/libjava/org/xml/sax/helpers/XMLReaderAdapter.java b/libjava/org/xml/sax/helpers/XMLReaderAdapter.java index 4fb44d91d8e..19c8d3f8e88 100644 --- a/libjava/org/xml/sax/helpers/XMLReaderAdapter.java +++ b/libjava/org/xml/sax/helpers/XMLReaderAdapter.java @@ -1,526 +1,539 @@ -// XMLReaderAdapter.java - adapt an SAX2 XMLReader to a SAX1 Parser
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the public domain.
-
-// $Id: XMLReaderAdapter.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-
-import java.io.IOException;
-import java.util.Locale;
-
-import org.xml.sax.Parser; // deprecated
-import org.xml.sax.Locator;
-import org.xml.sax.InputSource;
-import org.xml.sax.AttributeList; // deprecated
-import org.xml.sax.EntityResolver;
-import org.xml.sax.DTDHandler;
-import org.xml.sax.DocumentHandler; // deprecated
-import org.xml.sax.ErrorHandler;
-import org.xml.sax.SAXException;
-
-import org.xml.sax.XMLReader;
-import org.xml.sax.Attributes;
-import org.xml.sax.ContentHandler;
-import org.xml.sax.SAXNotSupportedException;
-
-
-/**
- * Adapt a SAX2 XMLReader as a SAX1 Parser.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class wraps a SAX2 {@link org.xml.sax.XMLReader XMLReader}
- * and makes it act as a SAX1 {@link org.xml.sax.Parser Parser}. The XMLReader
- * must support a true value for the
- * http://xml.org/sax/features/namespace-prefixes property or parsing will fail
- * with a {@link org.xml.sax.SAXException SAXException}; if the XMLReader
- * supports a false value for the http://xml.org/sax/features/namespaces
- * property, that will also be used to improve efficiency.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.Parser
- * @see org.xml.sax.XMLReader
- */
-public class XMLReaderAdapter implements Parser, ContentHandler
-{
-
-
- ////////////////////////////////////////////////////////////////////
- // Constructor.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Create a new adapter.
- *
- * <p>Use the "org.xml.sax.driver" property to locate the SAX2
- * driver to embed.</p>
- *
- * @exception org.xml.sax.SAXException If the embedded driver
- * cannot be instantiated or if the
- * org.xml.sax.driver property is not specified.
- */
- public XMLReaderAdapter ()
- throws SAXException
- {
- setup(XMLReaderFactory.createXMLReader());
- }
-
-
- /**
- * Create a new adapter.
- *
- * <p>Create a new adapter, wrapped around a SAX2 XMLReader.
- * The adapter will make the XMLReader act like a SAX1
- * Parser.</p>
- *
- * @param xmlReader The SAX2 XMLReader to wrap.
- * @exception java.lang.NullPointerException If the argument is null.
- */
- public XMLReaderAdapter (XMLReader xmlReader)
- {
- setup(xmlReader);
- }
-
-
-
- /**
- * Internal setup.
- *
- * @param xmlReader The embedded XMLReader.
- */
- private void setup (XMLReader xmlReader)
- {
- if (xmlReader == null) {
- throw new NullPointerException("XMLReader must not be null");
- }
- this.xmlReader = xmlReader;
- qAtts = new AttributesAdapter();
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.Parser.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set the locale for error reporting.
- *
- * <p>This is not supported in SAX2, and will always throw
- * an exception.</p>
- *
- * @param The locale for error reporting.
- * @see org.xml.sax.Parser#setLocale
- */
- public void setLocale (Locale locale)
- throws SAXException
- {
- throw new SAXNotSupportedException("setLocale not supported");
- }
-
-
- /**
- * Register the entity resolver.
- *
- * @param resolver The new resolver.
- * @see org.xml.sax.Parser#setEntityResolver
- */
- public void setEntityResolver (EntityResolver resolver)
- {
- xmlReader.setEntityResolver(resolver);
- }
-
-
- /**
- * Register the DTD event handler.
- *
- * @param handler The new DTD event handler.
- * @see org.xml.sax.Parser#setDTDHandler
- */
- public void setDTDHandler (DTDHandler handler)
- {
- xmlReader.setDTDHandler(handler);
- }
-
-
- /**
- * Register the SAX1 document event handler.
- *
- * <p>Note that the SAX1 document handler has no Namespace
- * support.</p>
- *
- * @param handler The new SAX1 document event handler.
- * @see org.xml.sax.Parser#setDocumentHandler
- */
- public void setDocumentHandler (DocumentHandler handler)
- {
- documentHandler = handler;
- }
-
-
- /**
- * Register the error event handler.
- *
- * @param handler The new error event handler.
- * @see org.xml.sax.Parser#setErrorHandler
- */
- public void setErrorHandler (ErrorHandler handler)
- {
- xmlReader.setErrorHandler(handler);
- }
-
-
- /**
- * Parse the document.
- *
- * <p>This method will throw an exception if the embedded
- * XMLReader does not support the
- * http://xml.org/sax/features/namespace-prefixes property.</p>
- *
- * @param systemId The absolute URL of the document.
- * @exception java.io.IOException If there is a problem reading
- * the raw content of the document.
- * @exception org.xml.sax.SAXException If there is a problem
- * processing the document.
- * @see #parse(org.xml.sax.InputSource)
- * @see org.xml.sax.Parser#parse(java.lang.String)
- */
- public void parse (String systemId)
- throws IOException, SAXException
- {
- parse(new InputSource(systemId));
- }
-
-
- /**
- * Parse the document.
- *
- * <p>This method will throw an exception if the embedded
- * XMLReader does not support the
- * http://xml.org/sax/features/namespace-prefixes property.</p>
- *
- * @param input An input source for the document.
- * @exception java.io.IOException If there is a problem reading
- * the raw content of the document.
- * @exception org.xml.sax.SAXException If there is a problem
- * processing the document.
- * @see #parse(java.lang.String)
- * @see org.xml.sax.Parser#parse(org.xml.sax.InputSource)
- */
- public void parse (InputSource input)
- throws IOException, SAXException
- {
- setupXMLReader();
- xmlReader.parse(input);
- }
-
-
- /**
- * Set up the XML reader.
- */
- private void setupXMLReader ()
- throws SAXException
- {
- xmlReader.setFeature("http://xml.org/sax/features/namespace-prefixes", true);
- try {
- xmlReader.setFeature("http://xml.org/sax/features/namespaces",
- false);
- } catch (SAXException e) {
- // NO OP: it's just extra information, and we can ignore it
- }
- xmlReader.setContentHandler(this);
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Implementation of org.xml.sax.ContentHandler.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Set a document locator.
- *
- * @param locator The document locator.
- * @see org.xml.sax.ContentHandler#setDocumentLocator
- */
- public void setDocumentLocator (Locator locator)
- {
- documentHandler.setDocumentLocator(locator);
- }
-
-
- /**
- * Start document event.
- *
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#startDocument
- */
- public void startDocument ()
- throws SAXException
- {
- documentHandler.startDocument();
- }
-
-
- /**
- * End document event.
- *
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#endDocument
- */
- public void endDocument ()
- throws SAXException
- {
- documentHandler.endDocument();
- }
-
-
- /**
- * Adapt a SAX2 start prefix mapping event.
- *
- * @param prefix The prefix being mapped.
- * @param uri The Namespace URI being mapped to.
- * @see org.xml.sax.ContentHandler#startPrefixMapping
- */
- public void startPrefixMapping (String prefix, String uri)
- {
- }
-
-
- /**
- * Adapt a SAX2 end prefix mapping event.
- *
- * @param prefix The prefix being mapped.
- * @see org.xml.sax.ContentHandler#endPrefixMapping
- */
- public void endPrefixMapping (String prefix)
- {
- }
-
-
- /**
- * Adapt a SAX2 start element event.
- *
- * @param uri The Namespace URI.
- * @param localName The Namespace local name.
- * @param qName The qualified (prefixed) name.
- * @param atts The SAX2 attributes.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#endDocument
- */
- public void startElement (String uri, String localName,
- String qName, Attributes atts)
- throws SAXException
- {
- qAtts.setAttributes(atts);
- documentHandler.startElement(qName, qAtts);
- }
-
-
- /**
- * Adapt a SAX2 end element event.
- *
- * @param uri The Namespace URI.
- * @param localName The Namespace local name.
- * @param qName The qualified (prefixed) name.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#endElement
- */
- public void endElement (String uri, String localName,
- String qName)
- throws SAXException
- {
- documentHandler.endElement(qName);
- }
-
-
- /**
- * Adapt a SAX2 characters event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#characters
- */
- public void characters (char ch[], int start, int length)
- throws SAXException
- {
- documentHandler.characters(ch, start, length);
- }
-
-
- /**
- * Adapt a SAX2 ignorable whitespace event.
- *
- * @param ch An array of characters.
- * @param start The starting position in the array.
- * @param length The number of characters to use.
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#ignorableWhitespace
- */
- public void ignorableWhitespace (char ch[], int start, int length)
- throws SAXException
- {
- documentHandler.ignorableWhitespace(ch, start, length);
- }
-
-
- /**
- * Adapt a SAX2 processing instruction event.
- *
- * @param target The processing instruction target.
- * @param data The remainder of the processing instruction
- * @exception org.xml.sax.SAXException The client may raise a
- * processing exception.
- * @see org.xml.sax.ContentHandler#processingInstruction
- */
- public void processingInstruction (String target, String data)
- throws SAXException
- {
- documentHandler.processingInstruction(target, data);
- }
-
-
- /**
- * Adapt a SAX2 skipped entity event.
- *
- * @param name The name of the skipped entity.
- * @see org.xml.sax.ContentHandler#skippedEntity
- */
- public void skippedEntity (String name)
- throws SAXException
- {
- }
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal state.
- ////////////////////////////////////////////////////////////////////
-
- XMLReader xmlReader;
- DocumentHandler documentHandler;
- AttributesAdapter qAtts;
-
-
-
- ////////////////////////////////////////////////////////////////////
- // Internal class.
- ////////////////////////////////////////////////////////////////////
-
-
- /**
- * Internal class to wrap a SAX2 Attributes object for SAX1.
- */
- final class AttributesAdapter implements AttributeList
- {
- AttributesAdapter ()
- {
- }
-
-
- /**
- * Set the embedded Attributes object.
- *
- * @param The embedded SAX2 Attributes.
- */
- void setAttributes (Attributes attributes)
- {
- this.attributes = attributes;
- }
-
-
- /**
- * Return the number of attributes.
- *
- * @return The length of the attribute list.
- * @see org.xml.sax.AttributeList#getLength
- */
- public int getLength ()
- {
- return attributes.getLength();
- }
-
-
- /**
- * Return the qualified (prefixed) name of an attribute by position.
- *
- * @return The qualified name.
- * @see org.xml.sax.AttributeList#getName
- */
- public String getName (int i)
- {
- return attributes.getQName(i);
- }
-
-
- /**
- * Return the type of an attribute by position.
- *
- * @return The type.
- * @see org.xml.sax.AttributeList#getType(int)
- */
- public String getType (int i)
- {
- return attributes.getType(i);
- }
-
-
- /**
- * Return the value of an attribute by position.
- *
- * @return The value.
- * @see org.xml.sax.AttributeList#getValue(int)
- */
- public String getValue (int i)
- {
- return attributes.getValue(i);
- }
-
-
- /**
- * Return the type of an attribute by qualified (prefixed) name.
- *
- * @return The type.
- * @see org.xml.sax.AttributeList#getType(java.lang.String)
- */
- public String getType (String qName)
- {
- return attributes.getType(qName);
- }
-
-
- /**
- * Return the value of an attribute by qualified (prefixed) name.
- *
- * @return The value.
- * @see org.xml.sax.AttributeList#getValue(java.lang.String)
- */
- public String getValue (String qName)
- {
- return attributes.getValue(qName);
- }
-
- private Attributes attributes;
- }
-
-}
-
-// end of XMLReaderAdapter.java
+// XMLReaderAdapter.java - adapt an SAX2 XMLReader to a SAX1 Parser +// http://www.saxproject.org +// Written by David Megginson +// NO WARRANTY! This class is in the public domain. + +// $Id: XMLReaderAdapter.java,v 1.5.2.3 2002/01/29 21:34:15 dbrownell Exp $ + +package org.xml.sax.helpers; + +import java.io.IOException; +import java.util.Locale; + +import org.xml.sax.Parser; // deprecated +import org.xml.sax.Locator; +import org.xml.sax.InputSource; +import org.xml.sax.AttributeList; // deprecated +import org.xml.sax.EntityResolver; +import org.xml.sax.DTDHandler; +import org.xml.sax.DocumentHandler; // deprecated +import org.xml.sax.ErrorHandler; +import org.xml.sax.SAXException; + +import org.xml.sax.XMLReader; +import org.xml.sax.Attributes; +import org.xml.sax.ContentHandler; +import org.xml.sax.SAXNotSupportedException; + + +/** + * Adapt a SAX2 XMLReader as a SAX1 Parser. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class wraps a SAX2 {@link org.xml.sax.XMLReader XMLReader} + * and makes it act as a SAX1 {@link org.xml.sax.Parser Parser}. The XMLReader + * must support a true value for the + * http://xml.org/sax/features/namespace-prefixes property or parsing will fail + * with a {@link org.xml.sax.SAXException SAXException}; if the XMLReader + * supports a false value for the http://xml.org/sax/features/namespaces + * property, that will also be used to improve efficiency.</p> + * + * @since SAX 2.0 + * @author David Megginson + * @version 2.0.1 (sax2r2) + * @see org.xml.sax.Parser + * @see org.xml.sax.XMLReader + */ +public class XMLReaderAdapter implements Parser, ContentHandler +{ + + + //////////////////////////////////////////////////////////////////// + // Constructor. + //////////////////////////////////////////////////////////////////// + + + /** + * Create a new adapter. + * + * <p>Use the "org.xml.sax.driver" property to locate the SAX2 + * driver to embed.</p> + * + * @exception org.xml.sax.SAXException If the embedded driver + * cannot be instantiated or if the + * org.xml.sax.driver property is not specified. + */ + public XMLReaderAdapter () + throws SAXException + { + setup(XMLReaderFactory.createXMLReader()); + } + + + /** + * Create a new adapter. + * + * <p>Create a new adapter, wrapped around a SAX2 XMLReader. + * The adapter will make the XMLReader act like a SAX1 + * Parser.</p> + * + * @param xmlReader The SAX2 XMLReader to wrap. + * @exception java.lang.NullPointerException If the argument is null. + */ + public XMLReaderAdapter (XMLReader xmlReader) + { + setup(xmlReader); + } + + + + /** + * Internal setup. + * + * @param xmlReader The embedded XMLReader. + */ + private void setup (XMLReader xmlReader) + { + if (xmlReader == null) { + throw new NullPointerException("XMLReader must not be null"); + } + this.xmlReader = xmlReader; + qAtts = new AttributesAdapter(); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.Parser. + //////////////////////////////////////////////////////////////////// + + + /** + * Set the locale for error reporting. + * + * <p>This is not supported in SAX2, and will always throw + * an exception.</p> + * + * @param The locale for error reporting. + * @see org.xml.sax.Parser#setLocale + * @exception org.xml.sax.SAXException Thrown unless overridden. + */ + public void setLocale (Locale locale) + throws SAXException + { + throw new SAXNotSupportedException("setLocale not supported"); + } + + + /** + * Register the entity resolver. + * + * @param resolver The new resolver. + * @see org.xml.sax.Parser#setEntityResolver + */ + public void setEntityResolver (EntityResolver resolver) + { + xmlReader.setEntityResolver(resolver); + } + + + /** + * Register the DTD event handler. + * + * @param handler The new DTD event handler. + * @see org.xml.sax.Parser#setDTDHandler + */ + public void setDTDHandler (DTDHandler handler) + { + xmlReader.setDTDHandler(handler); + } + + + /** + * Register the SAX1 document event handler. + * + * <p>Note that the SAX1 document handler has no Namespace + * support.</p> + * + * @param handler The new SAX1 document event handler. + * @see org.xml.sax.Parser#setDocumentHandler + */ + public void setDocumentHandler (DocumentHandler handler) + { + documentHandler = handler; + } + + + /** + * Register the error event handler. + * + * @param handler The new error event handler. + * @see org.xml.sax.Parser#setErrorHandler + */ + public void setErrorHandler (ErrorHandler handler) + { + xmlReader.setErrorHandler(handler); + } + + + /** + * Parse the document. + * + * <p>This method will throw an exception if the embedded + * XMLReader does not support the + * http://xml.org/sax/features/namespace-prefixes property.</p> + * + * @param systemId The absolute URL of the document. + * @exception java.io.IOException If there is a problem reading + * the raw content of the document. + * @exception org.xml.sax.SAXException If there is a problem + * processing the document. + * @see #parse(org.xml.sax.InputSource) + * @see org.xml.sax.Parser#parse(java.lang.String) + */ + public void parse (String systemId) + throws IOException, SAXException + { + parse(new InputSource(systemId)); + } + + + /** + * Parse the document. + * + * <p>This method will throw an exception if the embedded + * XMLReader does not support the + * http://xml.org/sax/features/namespace-prefixes property.</p> + * + * @param input An input source for the document. + * @exception java.io.IOException If there is a problem reading + * the raw content of the document. + * @exception org.xml.sax.SAXException If there is a problem + * processing the document. + * @see #parse(java.lang.String) + * @see org.xml.sax.Parser#parse(org.xml.sax.InputSource) + */ + public void parse (InputSource input) + throws IOException, SAXException + { + setupXMLReader(); + xmlReader.parse(input); + } + + + /** + * Set up the XML reader. + */ + private void setupXMLReader () + throws SAXException + { + xmlReader.setFeature("http://xml.org/sax/features/namespace-prefixes", true); + try { + xmlReader.setFeature("http://xml.org/sax/features/namespaces", + false); + } catch (SAXException e) { + // NO OP: it's just extra information, and we can ignore it + } + xmlReader.setContentHandler(this); + } + + + + //////////////////////////////////////////////////////////////////// + // Implementation of org.xml.sax.ContentHandler. + //////////////////////////////////////////////////////////////////// + + + /** + * Set a document locator. + * + * @param locator The document locator. + * @see org.xml.sax.ContentHandler#setDocumentLocator + */ + public void setDocumentLocator (Locator locator) + { + if (documentHandler != null) + documentHandler.setDocumentLocator(locator); + } + + + /** + * Start document event. + * + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#startDocument + */ + public void startDocument () + throws SAXException + { + if (documentHandler != null) + documentHandler.startDocument(); + } + + + /** + * End document event. + * + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#endDocument + */ + public void endDocument () + throws SAXException + { + if (documentHandler != null) + documentHandler.endDocument(); + } + + + /** + * Adapt a SAX2 start prefix mapping event. + * + * @param prefix The prefix being mapped. + * @param uri The Namespace URI being mapped to. + * @see org.xml.sax.ContentHandler#startPrefixMapping + */ + public void startPrefixMapping (String prefix, String uri) + { + } + + + /** + * Adapt a SAX2 end prefix mapping event. + * + * @param prefix The prefix being mapped. + * @see org.xml.sax.ContentHandler#endPrefixMapping + */ + public void endPrefixMapping (String prefix) + { + } + + + /** + * Adapt a SAX2 start element event. + * + * @param uri The Namespace URI. + * @param localName The Namespace local name. + * @param qName The qualified (prefixed) name. + * @param atts The SAX2 attributes. + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#endDocument + */ + public void startElement (String uri, String localName, + String qName, Attributes atts) + throws SAXException + { + if (documentHandler != null) { + qAtts.setAttributes(atts); + documentHandler.startElement(qName, qAtts); + } + } + + + /** + * Adapt a SAX2 end element event. + * + * @param uri The Namespace URI. + * @param localName The Namespace local name. + * @param qName The qualified (prefixed) name. + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#endElement + */ + public void endElement (String uri, String localName, + String qName) + throws SAXException + { + if (documentHandler != null) + documentHandler.endElement(qName); + } + + + /** + * Adapt a SAX2 characters event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use. + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#characters + */ + public void characters (char ch[], int start, int length) + throws SAXException + { + if (documentHandler != null) + documentHandler.characters(ch, start, length); + } + + + /** + * Adapt a SAX2 ignorable whitespace event. + * + * @param ch An array of characters. + * @param start The starting position in the array. + * @param length The number of characters to use. + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#ignorableWhitespace + */ + public void ignorableWhitespace (char ch[], int start, int length) + throws SAXException + { + if (documentHandler != null) + documentHandler.ignorableWhitespace(ch, start, length); + } + + + /** + * Adapt a SAX2 processing instruction event. + * + * @param target The processing instruction target. + * @param data The remainder of the processing instruction + * @exception org.xml.sax.SAXException The client may raise a + * processing exception. + * @see org.xml.sax.ContentHandler#processingInstruction + */ + public void processingInstruction (String target, String data) + throws SAXException + { + if (documentHandler != null) + documentHandler.processingInstruction(target, data); + } + + + /** + * Adapt a SAX2 skipped entity event. + * + * @param name The name of the skipped entity. + * @see org.xml.sax.ContentHandler#skippedEntity + * @exception org.xml.sax.SAXException Throwable by subclasses. + */ + public void skippedEntity (String name) + throws SAXException + { + } + + + + //////////////////////////////////////////////////////////////////// + // Internal state. + //////////////////////////////////////////////////////////////////// + + XMLReader xmlReader; + DocumentHandler documentHandler; + AttributesAdapter qAtts; + + + + //////////////////////////////////////////////////////////////////// + // Internal class. + //////////////////////////////////////////////////////////////////// + + + /** + * Internal class to wrap a SAX2 Attributes object for SAX1. + */ + final class AttributesAdapter implements AttributeList + { + AttributesAdapter () + { + } + + + /** + * Set the embedded Attributes object. + * + * @param The embedded SAX2 Attributes. + */ + void setAttributes (Attributes attributes) + { + this.attributes = attributes; + } + + + /** + * Return the number of attributes. + * + * @return The length of the attribute list. + * @see org.xml.sax.AttributeList#getLength + */ + public int getLength () + { + return attributes.getLength(); + } + + + /** + * Return the qualified (prefixed) name of an attribute by position. + * + * @return The qualified name. + * @see org.xml.sax.AttributeList#getName + */ + public String getName (int i) + { + return attributes.getQName(i); + } + + + /** + * Return the type of an attribute by position. + * + * @return The type. + * @see org.xml.sax.AttributeList#getType(int) + */ + public String getType (int i) + { + return attributes.getType(i); + } + + + /** + * Return the value of an attribute by position. + * + * @return The value. + * @see org.xml.sax.AttributeList#getValue(int) + */ + public String getValue (int i) + { + return attributes.getValue(i); + } + + + /** + * Return the type of an attribute by qualified (prefixed) name. + * + * @return The type. + * @see org.xml.sax.AttributeList#getType(java.lang.String) + */ + public String getType (String qName) + { + return attributes.getType(qName); + } + + + /** + * Return the value of an attribute by qualified (prefixed) name. + * + * @return The value. + * @see org.xml.sax.AttributeList#getValue(java.lang.String) + */ + public String getValue (String qName) + { + return attributes.getValue(qName); + } + + private Attributes attributes; + } + +} + +// end of XMLReaderAdapter.java diff --git a/libjava/org/xml/sax/helpers/XMLReaderFactory.java b/libjava/org/xml/sax/helpers/XMLReaderFactory.java index 9443b27dcca..e1fa80c84cf 100644 --- a/libjava/org/xml/sax/helpers/XMLReaderFactory.java +++ b/libjava/org/xml/sax/helpers/XMLReaderFactory.java @@ -1,136 +1,203 @@ -// XMLReaderFactory.java - factory for creating a new reader.
-// Written by David Megginson, sax@megginson.com
-// NO WARRANTY! This class is in the Public Domain.
-
-// $Id: XMLReaderFactory.java,v 1.1 2000/10/02 02:43:20 sboag Exp $
-
-package org.xml.sax.helpers;
-import org.xml.sax.Parser;
-import org.xml.sax.XMLReader;
-import org.xml.sax.SAXException;
-
-
-/**
- * Factory for creating an XML reader.
- *
- * <blockquote>
- * <em>This module, both source code and documentation, is in the
- * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
- * </blockquote>
- *
- * <p>This class contains static methods for creating an XML reader
- * from an explicit class name, or for creating an XML reader based
- * on the value of the <code>org.xml.sax.driver</code> system
- * property:</p>
- *
- * <pre>
- * try {
- * XMLReader myReader = XMLReaderFactory.createXMLReader();
- * } catch (SAXException e) {
- * System.err.println(e.getMessage());
- * }
- * </pre>
- *
- * <p>Note that these methods will not be usable in environments where
- * system properties are not accessible or where the application or
- * applet is not permitted to load classes dynamically.</p>
- *
- * <p><strong>Note to implementors:</strong> SAX implementations in specialized
- * environments may replace this class with a different one optimized for the
- * environment, as long as its method signatures remain the same.</p>
- *
- * @since SAX 2.0
- * @author David Megginson,
- * <a href="mailto:sax@megginson.com">sax@megginson.com</a>
- * @version 2.0
- * @see org.xml.sax.XMLReader
- */
-final public class XMLReaderFactory
-{
-
- /**
- * Private constructor.
- *
- * <p>This constructor prevents the class from being instantiated.</p>
- */
- private XMLReaderFactory ()
- {
- }
-
-
- /**
- * Attempt to create an XML reader from a system property.
- *
- * <p>This method uses the value of the system property
- * "org.xml.sax.driver" as the full name of a Java class
- * and tries to instantiate that class as a SAX2
- * XMLReader.</p>
- *
- * <p>Note that many Java interpreters allow system properties
- * to be specified on the command line.</p>
- *
- * @return A new XMLReader.
- * @exception org.xml.sax.SAXException If the value of the
- * "org.xml.sax.driver" system property is null,
- * or if the class cannot be loaded and instantiated.
- * @see #createXMLReader(java.lang.String)
- */
- public static XMLReader createXMLReader ()
- throws SAXException
- {
- String className = System.getProperty("org.xml.sax.driver");
- if (className == null) {
- Parser parser;
- try {
- parser = ParserFactory.makeParser();
- } catch (Exception e) {
- parser = null;
- }
- if (parser == null) {
- throw new
- SAXException("System property org.xml.sax.driver not specified");
- } else {
- return new ParserAdapter(parser);
- }
- } else {
- return createXMLReader(className);
- }
- }
-
-
- /**
- * Attempt to create an XML reader from a class name.
- *
- * <p>Given a class name, this method attempts to load
- * and instantiate the class as an XML reader.</p>
- *
- * @return A new XML reader.
- * @exception org.xml.sax.SAXException If the class cannot be
- * loaded, instantiated, and cast to XMLReader.
- * @see #createXMLReader()
- */
- public static XMLReader createXMLReader (String className)
- throws SAXException
- {
- try {
- return (XMLReader)(Class.forName(className).newInstance());
- } catch (ClassNotFoundException e1) {
- throw new SAXException("SAX2 driver class " + className +
- " not found", e1);
- } catch (IllegalAccessException e2) {
- throw new SAXException("SAX2 driver class " + className +
- " found but cannot be loaded", e2);
- } catch (InstantiationException e3) {
- throw new SAXException("SAX2 driver class " + className +
- " loaded but cannot be instantiated (no empty public constructor?)",
- e3);
- } catch (ClassCastException e4) {
- throw new SAXException("SAX2 driver class " + className +
- " does not implement XMLReader", e4);
- }
-
- }
-
-}
-
-// end of XMLReaderFactory.java
+// XMLReaderFactory.java - factory for creating a new reader. +// http://www.saxproject.org +// Written by David Megginson +// and by David Brownell +// NO WARRANTY! This class is in the Public Domain. + +// $Id: XMLReaderFactory.java,v 1.5.2.4 2002/01/29 21:34:15 dbrownell Exp $ + +package org.xml.sax.helpers; +import java.io.BufferedReader; +import java.io.InputStream; +import java.io.InputStreamReader; +import org.xml.sax.XMLReader; +import org.xml.sax.SAXException; + + +/** + * Factory for creating an XML reader. + * + * <blockquote> + * <em>This module, both source code and documentation, is in the + * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em> + * See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> + * for further information. + * </blockquote> + * + * <p>This class contains static methods for creating an XML reader + * from an explicit class name, or based on runtime defaults:</p> + * + * <pre> + * try { + * XMLReader myReader = XMLReaderFactory.createXMLReader(); + * } catch (SAXException e) { + * System.err.println(e.getMessage()); + * } + * </pre> + * + * <p><strong>Note to Distributions bundled with parsers:</strong> + * You should modify the implementation of the no-arguments + * <em>createXMLReader</em> to handle cases where the external + * configuration mechanisms aren't set up. That method should do its + * best to return a parser when one is in the class path, even when + * nothing bound its class name to <code>org.xml.sax.driver</code> so + * those configuration mechanisms would see it.</p> + * + * @since SAX 2.0 + * @author David Megginson, David Brownell + * @version 2.0.1 (sax2r2) + */ +final public class XMLReaderFactory +{ + /** + * Private constructor. + * + * <p>This constructor prevents the class from being instantiated.</p> + */ + private XMLReaderFactory () + { + } + + private static final String property = "org.xml.sax.driver"; + + /** + * Attempt to create an XMLReader from system defaults. + * In environments which can support it, the name of the XMLReader + * class is determined by trying each these options in order, and + * using the first one which succeeds:</p> <ul> + * + * <li>If the system property <code>org.xml.sax.driver</code> + * has a value, that is used as an XMLReader class name. </li> + * + * <li>The JAR "Services API" is used to look for a class name + * in the <em>META-INF/services/org.xml.sax.driver</em> file in + * jarfiles available to the runtime.</li> + * + * <li> SAX parser distributions are strongly encouraged to provide + * a default XMLReader class name that will take effect only when + * previous options (on this list) are not successful.</li> + * + * <li>Finally, if {@link ParserFactory#makeParser()} can + * return a system default SAX1 parser, that parser is wrapped in + * a {@link ParserAdapter}. (This is a migration aid for SAX1 + * environments, where the <code>org.xml.sax.parser</code> system + * property will often be usable.) </li> + * + * </ul> + * + * <p> In environments such as small embedded systems, which can not + * support that flexibility, other mechanisms to determine the default + * may be used. </p> + * + * <p>Note that many Java environments allow system properties to be + * initialized on a command line. This means that <em>in most cases</em> + * setting a good value for that property ensures that calls to this + * method will succeed, except when security policies intervene. + * This will also maximize application portability to older SAX + * environments, with less robust implementations of this method. + * </p> + * + * @return A new XMLReader. + * @exception org.xml.sax.SAXException If no default XMLReader class + * can be identified and instantiated. + * @see #createXMLReader(java.lang.String) + */ + public static XMLReader createXMLReader () + throws SAXException + { + String className = null; + ClassLoader loader = NewInstance.getClassLoader (); + + // 1. try the JVM-instance-wide system property + try { className = System.getProperty (property); } + catch (Exception e) { /* normally fails for applets */ } + + // 2. if that fails, try META-INF/services/ + if (className == null) { + try { + String service = "META-INF/services/" + property; + InputStream in; + BufferedReader reader; + + if (loader == null) + in = ClassLoader.getSystemResourceAsStream (service); + else + in = loader.getResourceAsStream (service); + + if (in != null) { + reader = new BufferedReader ( + new InputStreamReader (in, "UTF8")); + className = reader.readLine (); + in.close (); + } + } catch (Exception e) { + } + } + + // 3. Distro-specific fallback + if (className == null) { +// BEGIN DISTRIBUTION-SPECIFIC + + // EXAMPLE: + // className = "com.example.sax.XmlReader"; + // or a $JAVA_HOME/jre/lib/*properties setting... + +// END DISTRIBUTION-SPECIFIC + } + + // do we know the XMLReader implementation class yet? + if (className != null) + return loadClass (loader, className); + + // 4. panic -- adapt any SAX1 parser + try { + return new ParserAdapter (ParserFactory.makeParser ()); + } catch (Exception e) { + throw new SAXException ("Can't create default XMLReader; " + + "is system property org.xml.sax.driver set?"); + } + } + + + /** + * Attempt to create an XML reader from a class name. + * + * <p>Given a class name, this method attempts to load + * and instantiate the class as an XML reader.</p> + * + * <p>Note that this method will not be usable in environments where + * the caller (perhaps an applet) is not permitted to load classes + * dynamically.</p> + * + * @return A new XML reader. + * @exception org.xml.sax.SAXException If the class cannot be + * loaded, instantiated, and cast to XMLReader. + * @see #createXMLReader() + */ + public static XMLReader createXMLReader (String className) + throws SAXException + { + return loadClass (NewInstance.getClassLoader (), className); + } + + private static XMLReader loadClass (ClassLoader loader, String className) + throws SAXException + { + try { + return (XMLReader) NewInstance.newInstance (loader, className); + } catch (ClassNotFoundException e1) { + throw new SAXException("SAX2 driver class " + className + + " not found", e1); + } catch (IllegalAccessException e2) { + throw new SAXException("SAX2 driver class " + className + + " found but cannot be loaded", e2); + } catch (InstantiationException e3) { + throw new SAXException("SAX2 driver class " + className + + " loaded but cannot be instantiated (no empty public constructor?)", + e3); + } catch (ClassCastException e4) { + throw new SAXException("SAX2 driver class " + className + + " does not implement XMLReader", e4); + } + } +} diff --git a/libjava/org/xml/sax/helpers/package.html b/libjava/org/xml/sax/helpers/package.html new file mode 100644 index 00000000000..458d1229c47 --- /dev/null +++ b/libjava/org/xml/sax/helpers/package.html @@ -0,0 +1,13 @@ +<HTML><HEAD> + +<!-- $Id: package.html,v 1.3.2.1 2001/11/09 20:32:58 dbrownell Exp $ --> + +</HEAD><BODY> + +<p>This package contains "helper" classes, including +support for bootstrapping SAX-based applications. + +<p>See <a href='http://www.saxproject.org'>http://www.saxproject.org</a> +for more information about SAX.</p> + +</BODY></HTML> |