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Diffstat (limited to 'libjava/gnu/xml/transform/StreamSerializer.java')
| -rw-r--r-- | libjava/gnu/xml/transform/StreamSerializer.java | 632 |
1 files changed, 0 insertions, 632 deletions
diff --git a/libjava/gnu/xml/transform/StreamSerializer.java b/libjava/gnu/xml/transform/StreamSerializer.java deleted file mode 100644 index 80a1f7016a5..00000000000 --- a/libjava/gnu/xml/transform/StreamSerializer.java +++ /dev/null @@ -1,632 +0,0 @@ -/* StreamSerializer.java -- - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package gnu.xml.transform; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.OutputStream; -import java.io.UnsupportedEncodingException; -import java.util.Collection; -import java.util.Collections; -import java.util.HashMap; -import java.util.Map; -import javax.xml.XMLConstants; -import org.w3c.dom.Attr; -import org.w3c.dom.Document; -import org.w3c.dom.DocumentType; -import org.w3c.dom.NamedNodeMap; -import org.w3c.dom.Node; - -/** - * Serializes a DOM node to an output stream. - * - * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> - */ -public class StreamSerializer -{ - - static final int SPACE = 0x20; - static final int BANG = 0x21; // ! - static final int APOS = 0x27; // ' - static final int SLASH = 0x2f; // / - static final int BRA = 0x3c; // < - static final int KET = 0x3e; // > - static final int EQ = 0x3d; // = - - protected String encoding; - boolean compatibilityMode; - final int mode; - final Map namespaces; - protected String eol; - Collection cdataSectionElements = Collections.EMPTY_SET; - - protected boolean discardDefaultContent; - protected boolean xmlDeclaration = true; - - public StreamSerializer() - { - this(Stylesheet.OUTPUT_XML, null, null); - } - - public StreamSerializer(String encoding) - { - this(Stylesheet.OUTPUT_XML, encoding, null); - } - - public StreamSerializer(int mode, String encoding, String eol) - { - this.mode = mode; - if (encoding == null) - { - encoding = "UTF-8"; - } - this.encoding = encoding.intern(); - compatibilityMode = true; - if (encoding.length() > 3) - { - String p = encoding.substring(0, 3); - if (p.equalsIgnoreCase("UTF") || - p.equalsIgnoreCase("UCS")) - { - compatibilityMode = false; - } - } - this.eol = (eol != null) ? eol : System.getProperty("line.separator"); - namespaces = new HashMap(); - } - - void setCdataSectionElements(Collection c) - { - cdataSectionElements = c; - } - - public void serialize(final Node node, final OutputStream out) - throws IOException - { - serialize(node, out, false); - } - - void serialize(final Node node, final OutputStream out, - boolean convertToCdata) - throws IOException - { - if (out == null) - { - throw new NullPointerException("no output stream"); - } - String value, prefix; - Node children; - Node next = node.getNextSibling(); - String uri = node.getNamespaceURI(); - boolean defined = false; - short nt = node.getNodeType(); - if (convertToCdata && nt == Node.TEXT_NODE) - { - nt = Node.CDATA_SECTION_NODE; - } - switch (nt) - { - case Node.ATTRIBUTE_NODE: - prefix = node.getPrefix(); - if (XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(uri) || - XMLConstants.XMLNS_ATTRIBUTE.equals(prefix) || - (prefix != null && prefix.startsWith("xmlns:"))) - { - String nsuri = node.getNodeValue(); - if (isDefined(nsuri)) - { - break; - } - define(nsuri, node.getLocalName()); - } - else if (uri != null && !isDefined(uri)) - { - prefix = define(uri, prefix); - String nsname = (prefix == null) ? "xmlns" : "xmlns:" + prefix; - out.write(SPACE); - out.write(encodeText(nsname)); - out.write(EQ); - String nsvalue = "'" + encode(uri, true, true) + "'"; - out.write(nsvalue.getBytes(encoding)); - defined = true; - } - out.write(SPACE); - String a_nodeName = node.getNodeName(); - out.write(encodeText(a_nodeName)); - String a_nodeValue = node.getNodeValue(); - if (mode == Stylesheet.OUTPUT_HTML && - a_nodeName.equals(a_nodeValue)) - { - break; - } - out.write(EQ); - value = "'" + encode(a_nodeValue, true, true) + "'"; - out.write(encodeText(value)); - break; - case Node.ELEMENT_NODE: - value = node.getNodeName(); - out.write(BRA); - out.write(encodeText(value)); - if (uri != null && !isDefined(uri)) - { - prefix = define(uri, node.getPrefix()); - String nsname = (prefix == null) ? "xmlns" : "xmlns:" + prefix; - out.write(SPACE); - out.write(encodeText(nsname)); - out.write(EQ); - String nsvalue = "'" + encode(uri, true, true) + "'"; - out.write(encodeText(nsvalue)); - defined = true; - } - NamedNodeMap attrs = node.getAttributes(); - if (attrs != null) - { - int len = attrs.getLength(); - for (int i = 0; i < len; i++) - { - Attr attr = (Attr) attrs.item(i); - if (discardDefaultContent && !attr.getSpecified()) - { - // NOOP - } - else - { - serialize(attr, out, false); - } - } - } - convertToCdata = cdataSectionElements.contains(value); - children = node.getFirstChild(); - if (children == null) - { - out.write(SLASH); - out.write(KET); - } - else - { - out.write(KET); - serialize(children, out, convertToCdata); - out.write(BRA); - out.write(SLASH); - out.write(encodeText(value)); - out.write(KET); - } - break; - case Node.TEXT_NODE: - value = node.getNodeValue(); - if (!"yes".equals(node.getUserData("disable-output-escaping"))) - { - value = encode(value, false, false); - } - out.write(encodeText(value)); - break; - case Node.CDATA_SECTION_NODE: - value = "<![CDATA[" + node.getNodeValue() + "]]>"; - out.write(encodeText(value)); - break; - case Node.COMMENT_NODE: - value = "<!--" + node.getNodeValue() + "-->"; - out.write(encodeText(value)); - Node cp = node.getParentNode(); - if (cp != null && cp.getNodeType() == Node.DOCUMENT_NODE) - { - out.write(encodeText(eol)); - } - break; - case Node.DOCUMENT_NODE: - case Node.DOCUMENT_FRAGMENT_NODE: - if (mode == Stylesheet.OUTPUT_XML) - { - if ("UTF-16".equalsIgnoreCase(encoding)) - { - out.write(0xfe); - out.write(0xff); - } - if (!"yes".equals(node.getUserData("omit-xml-declaration")) && - xmlDeclaration) - { - Document doc = (node instanceof Document) ? - (Document) node : null; - String version = (doc != null) ? doc.getXmlVersion() : null; - if (version == null) - { - version = (String) node.getUserData("version"); - } - if (version == null) - { - version = "1.0"; - } - out.write(BRA); - out.write(0x3f); - out.write("xml version='".getBytes("US-ASCII")); - out.write(version.getBytes("US-ASCII")); - out.write(APOS); - if (!("UTF-8".equalsIgnoreCase(encoding))) - { - out.write(" encoding='".getBytes("US-ASCII")); - out.write(encoding.getBytes("US-ASCII")); - out.write(APOS); - } - if ((doc != null && doc.getXmlStandalone()) || - "yes".equals(node.getUserData("standalone"))) - { - out.write(" standalone='yes'".getBytes("US-ASCII")); - } - out.write(0x3f); - out.write(KET); - out.write(encodeText(eol)); - } - // TODO warn if not outputting the declaration would be a - // problem - } - else if (mode == Stylesheet.OUTPUT_HTML) - { - // Ensure that encoding is accessible - String mediaType = (String) node.getUserData("media-type"); - if (mediaType == null) - { - mediaType = "text/html"; - } - String contentType = mediaType + "; charset=" + - ((encoding.indexOf(' ') != -1) ? - "\"" + encoding + "\"" : - encoding); - Document doc = (node instanceof Document) ? (Document) node : - node.getOwnerDocument(); - Node html = null; - for (Node ctx = node.getFirstChild(); ctx != null; - ctx = ctx.getNextSibling()) - { - if (ctx.getNodeType() == Node.ELEMENT_NODE) - { - html = ctx; - break; - } - } - if (html == null) - { - html = doc.createElement("html"); - node.appendChild(html); - } - Node head = null; - for (Node ctx = html.getFirstChild(); ctx != null; - ctx = ctx.getNextSibling()) - { - if (ctx.getNodeType() == Node.ELEMENT_NODE && - "head".equalsIgnoreCase(ctx.getLocalName())) - { - head = ctx; - break; - } - } - if (head == null) - { - head = doc.createElement("head"); - Node c1 = null; - for (Node ctx = html.getFirstChild(); ctx != null; - ctx = ctx.getNextSibling()) - { - if (ctx.getNodeType() == Node.ELEMENT_NODE) - { - c1 = ctx; - break; - } - } - if (c1 != null) - { - html.insertBefore(head, c1); - } - else - { - html.appendChild(head); - } - } - Node meta = null; - Node metaContent = null; - for (Node ctx = head.getFirstChild(); ctx != null; - ctx = ctx.getNextSibling()) - { - if (ctx.getNodeType() == Node.ELEMENT_NODE && - "meta".equalsIgnoreCase(ctx.getLocalName())) - { - NamedNodeMap metaAttrs = ctx.getAttributes(); - int len = metaAttrs.getLength(); - String httpEquiv = null; - Node content = null; - for (int i = 0; i < len; i++) - { - Node attr = metaAttrs.item(i); - String attrName = attr.getNodeName(); - if ("http-equiv".equalsIgnoreCase(attrName)) - { - httpEquiv = attr.getNodeValue(); - } - else if ("content".equalsIgnoreCase(attrName)) - { - content = attr; - } - } - if ("Content-Type".equalsIgnoreCase(httpEquiv)) - { - meta = ctx; - metaContent = content; - break; - } - } - } - if (meta == null) - { - meta = doc.createElement("meta"); - // Insert first - Node first = head.getFirstChild(); - if (first == null) - { - head.appendChild(meta); - } - else - { - head.insertBefore(meta, first); - } - Node metaHttpEquiv = doc.createAttribute("http-equiv"); - meta.getAttributes().setNamedItem(metaHttpEquiv); - metaHttpEquiv.setNodeValue("Content-Type"); - } - if (metaContent == null) - { - metaContent = doc.createAttribute("content"); - meta.getAttributes().setNamedItem(metaContent); - } - metaContent.setNodeValue(contentType); - // phew - } - children = node.getFirstChild(); - if (children != null) - { - serialize(children, out, convertToCdata); - } - break; - case Node.DOCUMENT_TYPE_NODE: - DocumentType doctype = (DocumentType) node; - out.write(BRA); - out.write(BANG); - value = doctype.getNodeName(); - out.write(encodeText(value)); - String publicId = doctype.getPublicId(); - if (publicId != null) - { - out.write(encodeText(" PUBLIC ")); - out.write(APOS); - out.write(encodeText(publicId)); - out.write(APOS); - } - String systemId = doctype.getSystemId(); - if (systemId != null) - { - out.write(encodeText(" SYSTEM ")); - out.write(APOS); - out.write(encodeText(systemId)); - out.write(APOS); - } - String internalSubset = doctype.getInternalSubset(); - if (internalSubset != null) - { - out.write(encodeText(internalSubset)); - } - out.write(KET); - out.write(eol.getBytes(encoding)); - break; - case Node.ENTITY_REFERENCE_NODE: - value = "&" + node.getNodeValue() + ";"; - out.write(encodeText(value)); - break; - case Node.PROCESSING_INSTRUCTION_NODE: - value = "<?" + node.getNodeName() + " " + node.getNodeValue() + "?>"; - out.write(encodeText(value)); - Node pp = node.getParentNode(); - if (pp != null && pp.getNodeType() == Node.DOCUMENT_NODE) - { - out.write(encodeText(eol)); - } - break; - } - if (defined) - { - undefine(uri); - } - if (next != null) - { - serialize(next, out, convertToCdata); - } - } - - boolean isDefined(String uri) - { - return XMLConstants.XML_NS_URI.equals(uri) || - XMLConstants.XMLNS_ATTRIBUTE_NS_URI.equals(uri) || - namespaces.containsKey(uri); - } - - String define(String uri, String prefix) - { - while (namespaces.containsValue(prefix)) - { - // Fabricate new prefix - prefix = prefix + "_"; - } - namespaces.put(uri, prefix); - return prefix; - } - - void undefine(String uri) - { - namespaces.remove(uri); - } - - final byte[] encodeText(String text) - throws UnsupportedEncodingException - { - if (compatibilityMode) - { - int len = text.length(); - StringBuffer buf = null; - for (int i = 0; i < len; i++) - { - char c = text.charAt(i); - if (c >= 127) - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append('&'); - buf.append('#'); - buf.append((int) c); - buf.append(';'); - } - else if (buf != null) - { - buf.append(c); - } - } - if (buf != null) - { - text = buf.toString(); - } - } - return text.getBytes(encoding); - } - - String encode(String text, boolean encodeCtl, boolean inAttr) - { - int len = text.length(); - StringBuffer buf = null; - for (int i = 0; i < len; i++) - { - char c = text.charAt(i); - if (c == '<') - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append("<"); - } - else if (c == '>') - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append(">"); - } - else if (c == '&') - { - if (mode == Stylesheet.OUTPUT_HTML && (i + 1) < len && - text.charAt(i + 1) == '{') - { - if (buf != null) - { - buf.append(c); - } - } - else - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append("&"); - } - } - else if (c == '\'' && inAttr) - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append("'"); - } - else if (c == '"' && inAttr) - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append("""); - } - else if (encodeCtl) - { - if (c < 0x20) - { - if (buf == null) - { - buf = new StringBuffer(text.substring(0, i)); - } - buf.append('&'); - buf.append('#'); - buf.append((int) c); - buf.append(';'); - } - else if (buf != null) - { - buf.append(c); - } - } - else if (buf != null) - { - buf.append(c); - } - } - return (buf == null) ? text : buf.toString(); - } - - String toString(Node node) - { - ByteArrayOutputStream out = new ByteArrayOutputStream(); - try - { - serialize(node, out); - return new String(out.toByteArray(), encoding); - } - catch (IOException e) - { - throw new RuntimeException(e.getMessage()); - } - } - -} |
