--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/com/sun/xml/internal/stream/XMLInputFactoryImpl.java Thu Apr 12 08:38:26 2012 -0700
@@ -0,0 +1,305 @@
+/*
+ * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.xml.internal.stream;
+
+import java.io.InputStream;
+import java.io.Reader;
+
+import javax.xml.stream.*;
+import javax.xml.stream.util.XMLEventAllocator ;
+import javax.xml.transform.Source;
+import javax.xml.transform.stream.StreamSource;
+import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;
+import com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl;
+import com.sun.org.apache.xerces.internal.impl.PropertyManager;
+import com.sun.org.apache.xerces.internal.impl.XMLStreamFilterImpl;
+import com.sun.org.apache.xerces.internal.impl.Constants;
+
+/** Factory Implementation for XMLInputFactory.
+ * @author Neeraj Bajaj Sun Microsystems
+ * @author K.Venugopal Sun Microsystems
+ */
+
+//xxx: Should we be reusing the XMLInputSource object
+public class XMLInputFactoryImpl extends javax.xml.stream.XMLInputFactory {
+
+
+ //List of supported properties and default values.
+ private PropertyManager fPropertyManager = new PropertyManager(PropertyManager.CONTEXT_READER) ;
+ private static final boolean DEBUG = false;
+
+ //Maintain a reference to last reader instantiated.
+ private XMLStreamReaderImpl fTempReader = null ;
+
+ boolean fPropertyChanged = false;
+ //no reader reuse by default
+ boolean fReuseInstance = false;
+
+ /** Creates a new instance of ZephryParserFactory */
+ public XMLInputFactoryImpl() {
+
+ }
+
+ void initEventReader(){
+ fPropertyChanged = true;
+ }
+
+ /**
+ * @param inputstream
+ * @throws XMLStreamException
+ * @return
+ */
+ public XMLEventReader createXMLEventReader(InputStream inputstream) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(inputstream));
+ }
+
+ public XMLEventReader createXMLEventReader(Reader reader) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(reader));
+ }
+
+ public XMLEventReader createXMLEventReader(Source source) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(source));
+ }
+
+ public XMLEventReader createXMLEventReader(String systemId, InputStream inputstream) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(systemId, inputstream));
+ }
+
+ public XMLEventReader createXMLEventReader(java.io.InputStream stream, String encoding) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(stream, encoding));
+ }
+
+ public XMLEventReader createXMLEventReader(String systemId, Reader reader) throws XMLStreamException {
+ initEventReader();
+ //delegate everything to XMLStreamReader
+ return new XMLEventReaderImpl(createXMLStreamReader(systemId, reader));
+ }
+
+ /** Create a new XMLEventReader from an XMLStreamReader. After being used
+ * to construct the XMLEventReader instance returned from this method
+ * the XMLStreamReader must not be used.
+ * @param reader the XMLStreamReader to read from (may not be modified)
+ * @return a new XMLEventReader
+ * @throws XMLStreamException
+ */
+ public XMLEventReader createXMLEventReader(XMLStreamReader reader) throws XMLStreamException {
+
+ //xxx: what do we do now -- instance is passed from the application
+ //probably we should check if the state is at the start document,
+ //eventreader call to next() should return START_DOCUMENT and
+ //then delegate every call to underlying streamReader
+ return new XMLEventReaderImpl(reader) ;
+ }
+
+ public XMLStreamReader createXMLStreamReader(InputStream inputstream) throws XMLStreamException {
+ XMLInputSource inputSource = new XMLInputSource(null, null, null, inputstream, null);
+ return getXMLStreamReaderImpl(inputSource);
+ }
+
+ public XMLStreamReader createXMLStreamReader(Reader reader) throws XMLStreamException {
+ XMLInputSource inputSource = new XMLInputSource(null, null, null, reader, null);
+ return getXMLStreamReaderImpl(inputSource);
+ }
+
+ public XMLStreamReader createXMLStreamReader(String systemId, Reader reader) throws XMLStreamException {
+ XMLInputSource inputSource = new XMLInputSource(null,systemId,null,reader,null);
+ return getXMLStreamReaderImpl(inputSource);
+ }
+
+ public XMLStreamReader createXMLStreamReader(Source source) throws XMLStreamException {
+ return new XMLStreamReaderImpl(jaxpSourcetoXMLInputSource(source),
+ new PropertyManager(fPropertyManager));
+ }
+
+ public XMLStreamReader createXMLStreamReader(String systemId, InputStream inputstream) throws XMLStreamException {
+ XMLInputSource inputSource = new XMLInputSource(null,systemId,null,inputstream,null);
+ return getXMLStreamReaderImpl(inputSource);
+ }
+
+
+ public XMLStreamReader createXMLStreamReader(InputStream inputstream, String encoding) throws XMLStreamException {
+ XMLInputSource inputSource = new XMLInputSource(null,null,null,inputstream,encoding);
+ return getXMLStreamReaderImpl(inputSource);
+ }
+
+ public XMLEventAllocator getEventAllocator() {
+ return (XMLEventAllocator)getProperty(XMLInputFactory.ALLOCATOR);
+ }
+
+ public XMLReporter getXMLReporter() {
+ return (XMLReporter)fPropertyManager.getProperty(XMLInputFactory.REPORTER);
+ }
+
+ public XMLResolver getXMLResolver() {
+ Object object = fPropertyManager.getProperty(XMLInputFactory.RESOLVER);
+ return (XMLResolver)object;
+ //return (XMLResolver)fPropertyManager.getProperty(XMLInputFactory.RESOLVER);
+ }
+
+ public void setXMLReporter(XMLReporter xmlreporter) {
+ fPropertyManager.setProperty(XMLInputFactory.REPORTER, xmlreporter);
+ }
+
+ public void setXMLResolver(XMLResolver xmlresolver) {
+ fPropertyManager.setProperty(XMLInputFactory.RESOLVER, xmlresolver);
+ }
+
+ /** Create a filtered event reader that wraps the filter around the event reader
+ * @param reader the event reader to wrap
+ * @param filter the filter to apply to the event reader
+ * @throws XMLStreamException
+ */
+ public XMLEventReader createFilteredReader(XMLEventReader reader, EventFilter filter) throws XMLStreamException {
+ return new EventFilterSupport(reader, filter);
+ }
+
+ /** Create a filtered reader that wraps the filter around the reader
+ * @param reader the reader to filter
+ * @param filter the filter to apply to the reader
+ * @throws XMLStreamException
+ */
+ public XMLStreamReader createFilteredReader(XMLStreamReader reader, StreamFilter filter) throws XMLStreamException {
+ if( reader != null && filter != null )
+ return new XMLStreamFilterImpl(reader,filter);
+
+ return null;
+ }
+
+
+
+ /** Get the value of a feature/property from the underlying implementation
+ * @param name The name of the property (may not be null)
+ * @return The value of the property
+ * @throws IllegalArgumentException if the property is not supported
+ */
+ public Object getProperty(java.lang.String name) throws java.lang.IllegalArgumentException {
+ if(name == null){
+ throw new IllegalArgumentException("Property not supported");
+ }
+ if(fPropertyManager.containsProperty(name))
+ return fPropertyManager.getProperty(name);
+ throw new IllegalArgumentException("Property not supported");
+ }
+
+ /** Query the set of fProperties that this factory supports.
+ *
+ * @param name The name of the property (may not be null)
+ * @return true if the property is supported and false otherwise
+ */
+ public boolean isPropertySupported(String name) {
+ if(name == null)
+ return false ;
+ else
+ return fPropertyManager.containsProperty(name);
+ }
+
+ /** Set a user defined event allocator for events
+ * @param allocator the user defined allocator
+ */
+ public void setEventAllocator(XMLEventAllocator allocator) {
+ fPropertyManager.setProperty(XMLInputFactory.ALLOCATOR, allocator);
+ }
+
+ /** Allows the user to set specific feature/property on the underlying implementation. The underlying implementation
+ * is not required to support every setting of every property in the specification and may use IllegalArgumentException
+ * to signal that an unsupported property may not be set with the specified value.
+ * @param name The name of the property (may not be null)
+ * @param value The value of the property
+ * @throws java.lang.IllegalArgumentException if the property is not supported
+ */
+ public void setProperty(java.lang.String name, Object value) throws java.lang.IllegalArgumentException {
+
+ if(name == null || value == null || !fPropertyManager.containsProperty(name) ){
+ throw new IllegalArgumentException("Property "+name+" is not supported");
+ }
+ if(name == Constants.REUSE_INSTANCE || name.equals(Constants.REUSE_INSTANCE)){
+ fReuseInstance = ((Boolean)value).booleanValue();
+ if(DEBUG)System.out.println("fReuseInstance is set to " + fReuseInstance);
+ }else{//for any other property set the flag
+ //REVISIT: Even in this case instance can be reused, by passing PropertyManager
+ fPropertyChanged = true;
+ }
+ fPropertyManager.setProperty(name,value);
+ }
+
+ XMLStreamReader getXMLStreamReaderImpl(XMLInputSource inputSource) throws javax.xml.stream.XMLStreamException{
+ //1. if the temp reader is null -- create the instance and return
+ if(fTempReader == null){
+ fPropertyChanged = false;
+ return fTempReader = new XMLStreamReaderImpl(inputSource,
+ new PropertyManager(fPropertyManager));
+ }
+ //if factory is configured to reuse the instance & this instance can be reused
+ //& the setProperty() hasn't been called
+ if(fReuseInstance && fTempReader.canReuse() && !fPropertyChanged){
+ if(DEBUG)System.out.println("Reusing the instance");
+ //we can make setInputSource() call reset() and this way there wont be two function calls
+ fTempReader.reset();
+ fTempReader.setInputSource(inputSource);
+ fPropertyChanged = false;
+ return fTempReader;
+ }else{
+ fPropertyChanged = false;
+ //just return the new instance.. note that we are not setting fTempReader to the newly created instance
+ return fTempReader = new XMLStreamReaderImpl(inputSource,
+ new PropertyManager(fPropertyManager));
+ }
+ }
+
+ XMLInputSource jaxpSourcetoXMLInputSource(Source source){
+ if(source instanceof StreamSource){
+ StreamSource stSource = (StreamSource)source;
+ String systemId = stSource.getSystemId();
+ String publicId = stSource.getPublicId();
+ InputStream istream = stSource.getInputStream();
+ Reader reader = stSource.getReader();
+
+ if(istream != null){
+ return new XMLInputSource(publicId, systemId, null, istream, null);
+ }
+ else if(reader != null){
+ return new XMLInputSource(publicId, systemId,null, reader, null);
+ }else{
+ return new XMLInputSource(publicId, systemId, null);
+ }
+ }
+
+ throw new UnsupportedOperationException("Cannot create " +
+ "XMLStreamReader or XMLEventReader from a " +
+ source.getClass().getName());
+ }
+
+}//XMLInputFactoryImpl