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Diffstat (limited to 'libjava/classpath/javax/xml/parsers/SAXParserFactory.java')
| -rw-r--r-- | libjava/classpath/javax/xml/parsers/SAXParserFactory.java | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/libjava/classpath/javax/xml/parsers/SAXParserFactory.java b/libjava/classpath/javax/xml/parsers/SAXParserFactory.java new file mode 100644 index 00000000000..8a89fdd92b5 --- /dev/null +++ b/libjava/classpath/javax/xml/parsers/SAXParserFactory.java @@ -0,0 +1,273 @@ +/* SAXParserFactory.java -- + Copyright (C) 2004, 2005 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 javax.xml.parsers; + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileInputStream; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.io.IOException; +import java.util.Properties; +import javax.xml.validation.Schema; +import org.xml.sax.SAXException; +import org.xml.sax.SAXNotRecognizedException; +import org.xml.sax.SAXNotSupportedException; + +/** + * Factory for obtaining SAX parsers. + * Instances of this class are <em>not</em> guaranteed to be thread safe. + * + * @author (a href='mailto:dog@gnu.org'>Chris Burdess</a) + */ +public abstract class SAXParserFactory +{ + + private boolean validating; + private boolean namespaceAware; + private Schema schema; + private boolean xIncludeAware; + + protected SAXParserFactory() + { + } + + /** + * Creates a new factory instance. + * The implementation class to load is the first found in the following + * locations: + * <ol> + * <li>the <code>javax.xml.parsers.SAXParserFactory</code> system + * property</li> + * <li>the above named property value in the + * <code><i>$JAVA_HOME</i>/lib/jaxp.properties</code> file</li> + * <li>the class name specified in the + * <code>META-INF/services/javax.xml.parsers.SAXParserFactory</code> + * system resource</li> + * <li>the default factory class</li> + * </ol> + */ + public static SAXParserFactory newInstance() + throws FactoryConfigurationError + { + ClassLoader loader = Thread.currentThread().getContextClassLoader(); + if (loader == null) + { + loader = SAXParserFactory.class.getClassLoader(); + } + String className = null; + int count = 0; + do + { + className = getFactoryClassName(loader, count++); + if (className != null) + { + try + { + Class t = (loader != null) ? loader.loadClass(className) : + Class.forName(className); + return (SAXParserFactory) t.newInstance(); + } + catch (ClassNotFoundException e) + { + className = null; + } + catch (Exception e) + { + throw new FactoryConfigurationError(e, + "error instantiating class " + className); + } + } + } + while (className == null && count < 3); + return new gnu.xml.aelfred2.JAXPFactory(); + } + + private static String getFactoryClassName(ClassLoader loader, int attempt) + { + final String propertyName = "javax.xml.parsers.SAXParserFactory"; + switch (attempt) + { + case 0: + return System.getProperty(propertyName); + case 1: + try + { + File file = new File(System.getProperty("java.home")); + file = new File(file, "lib"); + file = new File(file, "jaxp.properties"); + InputStream in = new FileInputStream(file); + Properties props = new Properties(); + props.load(in); + in.close(); + return props.getProperty(propertyName); + } + catch (IOException e) + { + return null; + } + case 2: + try + { + String serviceKey = "/META-INF/services/" + propertyName; + InputStream in = (loader != null) ? + loader.getResourceAsStream(serviceKey) : + SAXParserFactory.class.getResourceAsStream(serviceKey); + if (in != null) + { + BufferedReader r = + new BufferedReader(new InputStreamReader(in)); + String ret = r.readLine(); + r.close(); + return ret; + } + } + catch (IOException e) + { + } + return null; + default: + return null; + } + } + + /** + * Creates a new parser instance using the currently specified factory + * configuration. + * @exception ParserConfigurationException if the specified configuration + * is not supported + */ + public abstract SAXParser newSAXParser() + throws ParserConfigurationException, SAXException; + + /** + * Sets whether parsers obtained from this factory will be XML Namespace + * aware. + */ + public void setNamespaceAware(boolean awareness) + { + namespaceAware = awareness; + } + + /** + * Sets whether parsers obtained from this factory will validate their + * input. + */ + public void setValidating(boolean validating) + { + this.validating = validating; + } + + /** + * Indicates whether parsers obtained from this factory will be XML + * Namespace aware. + */ + public boolean isNamespaceAware() + { + return namespaceAware; + } + + /** + * Indicates whether parsers obtained from this factory will validate + * their input. + */ + public boolean isValidating() + { + return validating; + } + + /** + * Sets the specified feature for SAX2 parsers obtained from this factory. + * @param name the feature name + * @param value the featurevalue + */ + public abstract void setFeature(String name, boolean value) + throws ParserConfigurationException, SAXNotRecognizedException, + SAXNotSupportedException; + + /** + * Returns the specified feature for SAX2 parsers obtained from this + * factory. + * @param name the feature name + */ + public abstract boolean getFeature(String name) + throws ParserConfigurationException, SAXNotRecognizedException, + SAXNotSupportedException; + + // -- JAXP 1.3 methods -- + + /** + * Returns the schema. + * @since 1.3 + * @see #setSchema + */ + public Schema getSchema() + { + return schema; + } + + /** + * Sets the schema. + * @since 1.3 + * @see #getSchema + */ + public void setSchema(Schema schema) + { + this.schema = schema; + } + + /** + * Indicates whether parsers obtained from this factory will be XInclude + * aware. + * @since 1.3 + */ + public boolean isXIncludeAware() + { + return xIncludeAware; + } + + /** + * Sets whether parsers obtained from this factory will be XInclude aware. + * @since 1.3 + */ + public void setXIncludeAware(boolean state) + { + xIncludeAware = state; + } + +} |
