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+/* XMLEventFactory.java --
+ Copyright (C) 2005,2006,2009 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.stream;
+
+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.Iterator;
+import java.util.Properties;
+import javax.xml.namespace.NamespaceContext;
+import javax.xml.namespace.QName;
+import javax.xml.stream.events.Attribute;
+import javax.xml.stream.events.Characters;
+import javax.xml.stream.events.Comment;
+import javax.xml.stream.events.DTD;
+import javax.xml.stream.events.EndDocument;
+import javax.xml.stream.events.EndElement;
+import javax.xml.stream.events.EntityDeclaration;
+import javax.xml.stream.events.EntityReference;
+import javax.xml.stream.events.Namespace;
+import javax.xml.stream.events.ProcessingInstruction;
+import javax.xml.stream.events.StartDocument;
+import javax.xml.stream.events.StartElement;
+
+/**
+ * Factory for XML events.
+ */
+public abstract class XMLEventFactory
+{
+
+ protected XMLEventFactory()
+ {
+ }
+
+ /**
+ * Create a new factory instance.
+ * @see #newInstance(String,ClassLoader)
+ */
+ public static XMLEventFactory newInstance()
+ throws FactoryConfigurationError
+ {
+ return newInstance(null, null);
+ }
+
+ /**
+ * Create a new factory instance.
+ * The implementation class to load is the first found in the following
+ * locations:
+ * <ol>
+ * <li>the <code>javax.xml.stream.XMLEventFactory</code> system
+ * property</li>
+ * <li>the above named property value in the
+ * <code><i>$JAVA_HOME</i>/lib/stax.properties</code> file</li>
+ * <li>the class name specified in the
+ * <code>META-INF/services/javax.xml.stream.XMLEventFactory</code>
+ * system resource</li>
+ * <li>the default factory class</li>
+ * </ol>
+ * @param factoryId name of the factory to find, same as a property name
+ * @param classLoader the class loader to use
+ * @return the factory implementation
+ * @exception FactoryConfigurationError if an instance of this factory
+ * cannot be loaded
+ */
+ public static XMLEventFactory newInstance(String factoryId,
+ ClassLoader classLoader)
+ throws FactoryConfigurationError
+ {
+ ClassLoader loader = classLoader;
+ if (loader == null)
+ {
+ loader = Thread.currentThread().getContextClassLoader();
+ }
+ if (loader == null)
+ {
+ loader = XMLEventFactory.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 (XMLEventFactory) 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.stream.XMLEventFactoryImpl();
+ }
+
+ private static String getFactoryClassName(ClassLoader loader, int attempt)
+ {
+ final String propertyName = "javax.xml.stream.XMLEventFactory";
+ 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, "stax.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) :
+ XMLEventFactory.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;
+ }
+ }
+
+ /**
+ * Sets the location for each event created by this factory.
+ */
+ public abstract void setLocation(Location location);
+
+ /**
+ * Create an attribute event.
+ */
+ public abstract Attribute createAttribute(String prefix, String namespaceURI,
+ String localName, String value);
+
+ /**
+ * Create an attribute event.
+ */
+ public abstract Attribute createAttribute(String localName, String value);
+
+ /**
+ * Create an attribute event.
+ */
+ public abstract Attribute createAttribute(QName name, String value);
+
+ /**
+ * Create a namespace declaration event.
+ */
+ public abstract Namespace createNamespace(String namespaceURI);
+
+ /**
+ * Create a namespace declaration event.
+ */
+ public abstract Namespace createNamespace(String prefix, String namespaceUri);
+
+ /**
+ * Create a start-element event.
+ */
+ @SuppressWarnings("unchecked")
+ public abstract StartElement createStartElement(QName name,
+ Iterator attributes,
+ Iterator namespaces);
+
+ /**
+ * Create a start-element event.
+ */
+ public abstract StartElement createStartElement(String prefix,
+ String namespaceUri,
+ String localName);
+
+ /**
+ * Create a start-element event.
+ */
+ @SuppressWarnings("unchecked")
+ public abstract StartElement createStartElement(String prefix,
+ String namespaceUri,
+ String localName,
+ Iterator attributes,
+ Iterator namespaces);
+
+ /**
+ * Create a start-element event.
+ */
+ @SuppressWarnings("unchecked")
+ public abstract StartElement createStartElement(String prefix,
+ String namespaceUri,
+ String localName,
+ Iterator attributes,
+ Iterator namespaces,
+ NamespaceContext context);
+
+ /**
+ * Create an end-element event.
+ */
+ @SuppressWarnings("unchecked")
+ public abstract EndElement createEndElement(QName name,
+ Iterator namespaces);
+
+ /**
+ * Create an end-element event.
+ */
+ public abstract EndElement createEndElement(String prefix,
+ String namespaceUri,
+ String localName);
+
+ /**
+ * Create an end-element event.
+ */
+ @SuppressWarnings("unchecked")
+ public abstract EndElement createEndElement(String prefix,
+ String namespaceUri,
+ String localName,
+ Iterator namespaces);
+
+ /**
+ * Create a text event.
+ */
+ public abstract Characters createCharacters(String content);
+
+ /**
+ * Create a text event of type CDATA section.
+ */
+ public abstract Characters createCData(String content);
+
+ /**
+ * Create a text event of type whitespace.
+ */
+ public abstract Characters createSpace(String content);
+
+ /**
+ * Create a text event of type ignorable whitespace.
+ */
+ public abstract Characters createIgnorableSpace(String content);
+
+ /**
+ * Create a start-document event.
+ */
+ public abstract StartDocument createStartDocument();
+
+ /**
+ * Create a start-document event.
+ */
+ public abstract StartDocument createStartDocument(String encoding,
+ String version,
+ boolean standalone);
+
+ /**
+ * Create a start-document event.
+ */
+ public abstract StartDocument createStartDocument(String encoding,
+ String version);
+
+ /**
+ * Create a start-document event.
+ */
+ public abstract StartDocument createStartDocument(String encoding);
+
+ /**
+ * Create an end-document event.
+ */
+ public abstract EndDocument createEndDocument();
+
+ /**
+ * Create an entity reference event.
+ */
+ public abstract EntityReference createEntityReference(String name,
+ EntityDeclaration declaration);
+
+ /**
+ * Create a comment event.
+ */
+ public abstract Comment createComment(String text);
+
+ /**
+ * Create a processing instruction event.
+ */
+ public abstract ProcessingInstruction createProcessingInstruction(String target,
+ String data);
+
+ /**
+ * Create a DOCTYPE declaration event.
+ */
+ public abstract DTD createDTD(String dtd);
+
+}
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