aoqi@0: /*
aoqi@0:  * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.stream.buffer.sax;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.stream.buffer.AbstractProcessor;
aoqi@0: import com.sun.xml.internal.stream.buffer.AttributesHolder;
aoqi@0: import com.sun.xml.internal.stream.buffer.XMLStreamBuffer;
aoqi@0: import org.xml.sax.ContentHandler;
aoqi@0: import org.xml.sax.DTDHandler;
aoqi@0: import org.xml.sax.EntityResolver;
aoqi@0: import org.xml.sax.ErrorHandler;
aoqi@0: import org.xml.sax.InputSource;
aoqi@0: import org.xml.sax.SAXException;
aoqi@0: import org.xml.sax.SAXNotRecognizedException;
aoqi@0: import org.xml.sax.SAXNotSupportedException;
aoqi@0: import org.xml.sax.SAXParseException;
aoqi@0: import org.xml.sax.XMLReader;
aoqi@0: import org.xml.sax.ext.LexicalHandler;
aoqi@0: import org.xml.sax.helpers.LocatorImpl;
aoqi@0: 
aoqi@0: import javax.xml.XMLConstants;
aoqi@0: import java.io.IOException;
aoqi@0: import java.util.Collections;
aoqi@0: import java.util.HashSet;
aoqi@0: import java.util.Map;
aoqi@0: import java.util.Set;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * A processor of a {@link XMLStreamBuffer} that that reads the XML infoset as
aoqi@0:  * {@link XMLReader}.
aoqi@0:  */
aoqi@0: public class SAXBufferProcessor extends AbstractProcessor implements XMLReader {
aoqi@0:     /**
aoqi@0:      * Reference to entity resolver.
aoqi@0:      */
aoqi@0:     protected EntityResolver _entityResolver = DEFAULT_LEXICAL_HANDLER;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Reference to dtd handler.
aoqi@0:      */
aoqi@0:     protected DTDHandler _dtdHandler = DEFAULT_LEXICAL_HANDLER;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Reference to content handler.
aoqi@0:      */
aoqi@0:     protected ContentHandler _contentHandler = DEFAULT_LEXICAL_HANDLER;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Reference to error handler.
aoqi@0:      */
aoqi@0:     protected ErrorHandler _errorHandler = DEFAULT_LEXICAL_HANDLER;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Reference to lexical handler.
aoqi@0:      */
aoqi@0:     protected LexicalHandler _lexicalHandler = DEFAULT_LEXICAL_HANDLER;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * SAX Namespace attributes features
aoqi@0:      */
aoqi@0:     protected boolean _namespacePrefixesFeature = false;
aoqi@0: 
aoqi@0:     protected AttributesHolder _attributes = new AttributesHolder();
aoqi@0: 
aoqi@0:     protected String[] _namespacePrefixes = new String[16];
aoqi@0:     protected int _namespacePrefixesIndex;
aoqi@0: 
aoqi@0:     protected int[] _namespaceAttributesStartingStack = new int[16];
aoqi@0:     protected int[] _namespaceAttributesStack = new int[16];
aoqi@0:     protected int _namespaceAttributesStackIndex;
aoqi@0: 
aoqi@0:     public SAXBufferProcessor() {
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * @deprecated
aoqi@0:      *      Use {@link #SAXBufferProcessor(XMLStreamBuffer, boolean)}
aoqi@0:      */
aoqi@0:     public SAXBufferProcessor(XMLStreamBuffer buffer) {
aoqi@0:         setXMLStreamBuffer(buffer);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * @param produceFragmentEvent
aoqi@0:      *      True to generate fragment SAX events without start/endDocument.
aoqi@0:      *      False to generate a full document SAX events.
aoqi@0:      */
aoqi@0:     public SAXBufferProcessor(XMLStreamBuffer buffer, boolean produceFragmentEvent) {
aoqi@0:         setXMLStreamBuffer(buffer,produceFragmentEvent);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public boolean getFeature(String name)
aoqi@0:             throws SAXNotRecognizedException, SAXNotSupportedException {
aoqi@0:         if (name.equals(Features.NAMESPACES_FEATURE)) {
aoqi@0:             return true;
aoqi@0:         } else if (name.equals(Features.NAMESPACE_PREFIXES_FEATURE)) {
aoqi@0:             return _namespacePrefixesFeature;
aoqi@0:         } else if (name.equals(Features.EXTERNAL_GENERAL_ENTITIES)) {
aoqi@0:             return true;
aoqi@0:         } else if (name.equals(Features.EXTERNAL_PARAMETER_ENTITIES)) {
aoqi@0:             return true;
aoqi@0:         } else if (name.equals(Features.STRING_INTERNING_FEATURE)) {
aoqi@0:             return _stringInterningFeature;
aoqi@0:         } else {
aoqi@0:             throw new SAXNotRecognizedException(
aoqi@0:                     "Feature not supported: " + name);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setFeature(String name, boolean value)
aoqi@0:             throws SAXNotRecognizedException, SAXNotSupportedException {
aoqi@0:         if (name.equals(Features.NAMESPACES_FEATURE)) {
aoqi@0:             if (!value) {
aoqi@0:                 throw new SAXNotSupportedException(name + ":" + value);
aoqi@0:             }
aoqi@0:         } else if (name.equals(Features.NAMESPACE_PREFIXES_FEATURE)) {
aoqi@0:             _namespacePrefixesFeature = value;
aoqi@0:         } else if (name.equals(Features.EXTERNAL_GENERAL_ENTITIES)) {
aoqi@0:             // ignore
aoqi@0:         } else if (name.equals(Features.EXTERNAL_PARAMETER_ENTITIES)) {
aoqi@0:             // ignore
aoqi@0:         } else if (name.equals(Features.STRING_INTERNING_FEATURE)) {
aoqi@0:             if (value != _stringInterningFeature) {
aoqi@0:                 throw new SAXNotSupportedException(name + ":" + value);
aoqi@0:             }
aoqi@0:         } else {
aoqi@0:             throw new SAXNotRecognizedException(
aoqi@0:                     "Feature not supported: " + name);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public Object getProperty(String name)
aoqi@0:             throws SAXNotRecognizedException, SAXNotSupportedException {
aoqi@0:         if (name.equals(Properties.LEXICAL_HANDLER_PROPERTY)) {
aoqi@0:             return getLexicalHandler();
aoqi@0:         } else {
aoqi@0:             throw new SAXNotRecognizedException("Property not recognized: " + name);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setProperty(String name, Object value)
aoqi@0:             throws SAXNotRecognizedException, SAXNotSupportedException {
aoqi@0:         if (name.equals(Properties.LEXICAL_HANDLER_PROPERTY)) {
aoqi@0:             if (value instanceof LexicalHandler) {
aoqi@0:                 setLexicalHandler((LexicalHandler)value);
aoqi@0:             } else {
aoqi@0:                 throw new SAXNotSupportedException(Properties.LEXICAL_HANDLER_PROPERTY);
aoqi@0:             }
aoqi@0:         } else {
aoqi@0:             throw new SAXNotRecognizedException("Property not recognized: " + name);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setEntityResolver(EntityResolver resolver) {
aoqi@0:         _entityResolver = resolver;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public EntityResolver getEntityResolver() {
aoqi@0:         return _entityResolver;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setDTDHandler(DTDHandler handler) {
aoqi@0:         _dtdHandler = handler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public DTDHandler getDTDHandler() {
aoqi@0:         return _dtdHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setContentHandler(ContentHandler handler) {
aoqi@0:         _contentHandler = handler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public ContentHandler getContentHandler() {
aoqi@0:         return _contentHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setErrorHandler(ErrorHandler handler) {
aoqi@0:         _errorHandler = handler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public ErrorHandler getErrorHandler() {
aoqi@0:         return _errorHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void setLexicalHandler(LexicalHandler handler) {
aoqi@0:         _lexicalHandler = handler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public LexicalHandler getLexicalHandler() {
aoqi@0:         return _lexicalHandler;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void parse(InputSource input) throws IOException, SAXException {
aoqi@0:         // InputSource is ignored
aoqi@0:         process();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void parse(String systemId) throws IOException, SAXException {
aoqi@0:         // systemId is ignored
aoqi@0:         process();
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Short-hand for {@link #setXMLStreamBuffer(XMLStreamBuffer)} then {@link #process()}.
aoqi@0:      *
aoqi@0:      * @deprecated
aoqi@0:      *      Use {@link #process(XMLStreamBuffer, boolean)}
aoqi@0:      */
aoqi@0:     public final void process(XMLStreamBuffer buffer) throws SAXException {
aoqi@0:         setXMLStreamBuffer(buffer);
aoqi@0:         process();
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Short-hand for {@link #setXMLStreamBuffer(XMLStreamBuffer,boolean)} then {@link #process()}.
aoqi@0:      *
aoqi@0:      * @param produceFragmentEvent
aoqi@0:      *      True to generate fragment SAX events without start/endDocument.
aoqi@0:      *      False to generate a full document SAX events.
aoqi@0:      */
aoqi@0:     public final void process(XMLStreamBuffer buffer, boolean produceFragmentEvent) throws SAXException {
aoqi@0:         setXMLStreamBuffer(buffer);
aoqi@0:         process();
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Resets the parser to read from the beginning of the given {@link XMLStreamBuffer}.
aoqi@0:      *
aoqi@0:      * @deprecated
aoqi@0:      *      Use {@link #setXMLStreamBuffer(XMLStreamBuffer, boolean)}.
aoqi@0:      */
aoqi@0:     public void setXMLStreamBuffer(XMLStreamBuffer buffer) {
aoqi@0:         setBuffer(buffer);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Resets the parser to read from the beginning of the given {@link XMLStreamBuffer}.
aoqi@0:      *
aoqi@0:      * @param produceFragmentEvent
aoqi@0:      *      True to generate fragment SAX events without start/endDocument.
aoqi@0:      *      False to generate a full document SAX events.
aoqi@0:      */
aoqi@0:     public void setXMLStreamBuffer(XMLStreamBuffer buffer, boolean produceFragmentEvent) {
aoqi@0:         if(!produceFragmentEvent && _treeCount>1)
aoqi@0:             throw new IllegalStateException("Can't write a forest to a full XML infoset");
aoqi@0:         setBuffer(buffer,produceFragmentEvent);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Parse the sub-tree (or a whole document) that {@link XMLStreamBuffer}
aoqi@0:      * points to, and sends events to handlers.
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * TODO:
aoqi@0:      * We probably need two modes for a sub-tree event generation. One for
aoqi@0:      * firing a sub-tree as if it's a whole document (in which case start/endDocument
aoqi@0:      * and appropriate additional namespace bindings are necessary), and the other
aoqi@0:      * mode for firing a subtree as a subtree, like it does today.
aoqi@0:      * A stream buffer SAX feature could be used to specify this.
aoqi@0:      *
aoqi@0:      * @throws SAXException
aoqi@0:      *      Follow the same semantics as {@link XMLReader#parse(InputSource)}.
aoqi@0:      */
aoqi@0:     public final void process() throws SAXException {
aoqi@0:         if(!_fragmentMode) {
aoqi@0:             LocatorImpl nullLocator = new LocatorImpl();
aoqi@0:             nullLocator.setSystemId(_buffer.getSystemId());
aoqi@0:             nullLocator.setLineNumber(-1);
aoqi@0:             nullLocator.setColumnNumber(-1);
aoqi@0:             _contentHandler.setDocumentLocator(nullLocator);
aoqi@0: 
aoqi@0:             _contentHandler.startDocument();
aoqi@0:             // TODO: if we are writing a fragment stream buffer as a full XML document,
aoqi@0:             // we need to declare in-scope namespaces as if they are on the root element.
aoqi@0:         }
aoqi@0: 
aoqi@0:         while (_treeCount>0) {
aoqi@0:             final int item = readEiiState();
aoqi@0:             switch(item) {
aoqi@0:                 case STATE_DOCUMENT:
aoqi@0:                     processDocument();
aoqi@0:                     _treeCount--;
aoqi@0:                     break;
aoqi@0:                 case STATE_END:
aoqi@0:                     // Empty buffer
aoqi@0:                     return;
aoqi@0:                 case STATE_ELEMENT_U_LN_QN:
aoqi@0:                     processElement(readStructureString(), readStructureString(), readStructureString(), isInscope());
aoqi@0:                     _treeCount--;
aoqi@0:                     break;
aoqi@0:                 case STATE_ELEMENT_P_U_LN:
aoqi@0:                 {
aoqi@0:                     final String prefix = readStructureString();
aoqi@0:                     final String uri = readStructureString();
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement(uri, localName, getQName(prefix, localName),isInscope());
aoqi@0:                     _treeCount--;
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_U_LN: {
aoqi@0:                     final String uri = readStructureString();
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement(uri, localName, localName,isInscope());
aoqi@0:                     _treeCount--;
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_LN:
aoqi@0:                 {
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement("", localName, localName,isInscope());
aoqi@0:                     _treeCount--;
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_SMALL:
aoqi@0:                     processCommentAsCharArraySmall();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM:
aoqi@0:                     processCommentAsCharArrayMedium();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_COPY:
aoqi@0:                     processCommentAsCharArrayCopy();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_STRING:
aoqi@0:                     processComment(readContentString());
aoqi@0:                     break;
aoqi@0:                 case STATE_PROCESSING_INSTRUCTION:
aoqi@0:                     processProcessingInstruction(readStructureString(), readStructureString());
aoqi@0:                     break;
aoqi@0:                 default:
aoqi@0:                     throw reportFatalError("Illegal state for DIIs: "+item);
aoqi@0:             }
aoqi@0:         }
aoqi@0: 
aoqi@0:         if(!_fragmentMode)
aoqi@0:             _contentHandler.endDocument();
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processCommentAsCharArraySmall() throws SAXException {
aoqi@0:         final int length = readStructure();
aoqi@0:         final int start = readContentCharactersBuffer(length);
aoqi@0:         processComment(_contentCharactersBuffer, start, length);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Report a fatal error and abort.
aoqi@0:      *
aoqi@0:      * This is necessary to follow the SAX semantics of error handling.
aoqi@0:      */
aoqi@0:     private SAXParseException reportFatalError(String msg) throws SAXException {
aoqi@0:         SAXParseException spe = new SAXParseException(msg, null);
aoqi@0:         if(_errorHandler!=null)
aoqi@0:             _errorHandler.fatalError(spe);
aoqi@0:         return spe;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private boolean isInscope() {
aoqi@0:         return _buffer.getInscopeNamespaces().size() > 0;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processDocument() throws SAXException {
aoqi@0:         while(true) {
aoqi@0:             int item = readEiiState();
aoqi@0:             switch(item) {
aoqi@0:                 case STATE_ELEMENT_U_LN_QN:
aoqi@0:                     processElement(readStructureString(), readStructureString(), readStructureString(),isInscope());
aoqi@0:                     break;
aoqi@0:                 case STATE_ELEMENT_P_U_LN:
aoqi@0:                 {
aoqi@0:                     final String prefix = readStructureString();
aoqi@0:                     final String uri = readStructureString();
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement(uri, localName, getQName(prefix, localName),isInscope());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_U_LN: {
aoqi@0:                     final String uri = readStructureString();
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement(uri, localName, localName,isInscope());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_LN:
aoqi@0:                 {
aoqi@0:                     final String localName = readStructureString();
aoqi@0:                     processElement("", localName, localName,isInscope());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_SMALL:
aoqi@0:                     processCommentAsCharArraySmall();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM:
aoqi@0:                     processCommentAsCharArrayMedium();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_COPY:
aoqi@0:                     processCommentAsCharArrayCopy();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_STRING:
aoqi@0:                     processComment(readContentString());
aoqi@0:                     break;
aoqi@0:                 case STATE_PROCESSING_INSTRUCTION:
aoqi@0:                     processProcessingInstruction(readStructureString(), readStructureString());
aoqi@0:                     break;
aoqi@0:                 case STATE_END:
aoqi@0:                     return;
aoqi@0:                 default:
aoqi@0:                     throw reportFatalError("Illegal state for child of DII: "+item);
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void processElement(String uri, String localName, String qName, boolean inscope) throws SAXException {
aoqi@0:         boolean hasAttributes = false;
aoqi@0:         boolean hasNamespaceAttributes = false;
aoqi@0:         int item = peekStructure();
aoqi@0:         Set<String> prefixSet = inscope ? new HashSet<String>() : Collections.<String>emptySet();
aoqi@0:         if ((item & TYPE_MASK) == T_NAMESPACE_ATTRIBUTE) {
aoqi@0:             cacheNamespacePrefixStartingIndex();
aoqi@0:             hasNamespaceAttributes = true;
aoqi@0:             item = processNamespaceAttributes(item, inscope, prefixSet);
aoqi@0:         }
aoqi@0:         if (inscope) {
aoqi@0:             readInscopeNamespaces(prefixSet);
aoqi@0:         }
aoqi@0: 
aoqi@0:         if ((item & TYPE_MASK) == T_ATTRIBUTE) {
aoqi@0:             hasAttributes = true;
aoqi@0:             processAttributes(item);
aoqi@0:         }
aoqi@0: 
aoqi@0:         _contentHandler.startElement(uri, localName, qName, _attributes);
aoqi@0: 
aoqi@0:         if (hasAttributes) {
aoqi@0:             _attributes.clear();
aoqi@0:         }
aoqi@0: 
aoqi@0:         do {
aoqi@0:             item = readEiiState();
aoqi@0:             switch(item) {
aoqi@0:                 case STATE_ELEMENT_U_LN_QN:
aoqi@0:                     processElement(readStructureString(), readStructureString(), readStructureString(), false);
aoqi@0:                     break;
aoqi@0:                 case STATE_ELEMENT_P_U_LN:
aoqi@0:                 {
aoqi@0:                     final String p = readStructureString();
aoqi@0:                     final String u = readStructureString();
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     processElement(u, ln, getQName(p, ln),false);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_U_LN: {
aoqi@0:                     final String u = readStructureString();
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     processElement(u, ln, ln,false);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ELEMENT_LN: {
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     processElement("", ln, ln,false);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_TEXT_AS_CHAR_ARRAY_SMALL:
aoqi@0:                 {
aoqi@0:                     final int length = readStructure();
aoqi@0:                     int start = readContentCharactersBuffer(length);
aoqi@0:                     _contentHandler.characters(_contentCharactersBuffer, start, length);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_TEXT_AS_CHAR_ARRAY_MEDIUM:
aoqi@0:                 {
aoqi@0:                     final int length = readStructure16();
aoqi@0:                     int start = readContentCharactersBuffer(length);
aoqi@0:                     _contentHandler.characters(_contentCharactersBuffer, start, length);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_TEXT_AS_CHAR_ARRAY_COPY:
aoqi@0:                 {
aoqi@0:                     final char[] ch = readContentCharactersCopy();
aoqi@0: 
aoqi@0:                     _contentHandler.characters(ch, 0, ch.length);
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_TEXT_AS_STRING:
aoqi@0:                 {
aoqi@0:                     final String s = readContentString();
aoqi@0:                     _contentHandler.characters(s.toCharArray(), 0, s.length());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_TEXT_AS_OBJECT:
aoqi@0:                 {
aoqi@0:                     final CharSequence c = (CharSequence)readContentObject();
aoqi@0:                     final String s = c.toString();
aoqi@0:                     _contentHandler.characters(s.toCharArray(), 0, s.length());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_SMALL:
aoqi@0:                     processCommentAsCharArraySmall();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_MEDIUM:
aoqi@0:                     processCommentAsCharArrayMedium();
aoqi@0:                     break;
aoqi@0:                 case STATE_COMMENT_AS_CHAR_ARRAY_COPY:
aoqi@0:                     processCommentAsCharArrayCopy();
aoqi@0:                     break;
aoqi@0:                 case T_COMMENT_AS_STRING:
aoqi@0:                     processComment(readContentString());
aoqi@0:                     break;
aoqi@0:                 case STATE_PROCESSING_INSTRUCTION:
aoqi@0:                     processProcessingInstruction(readStructureString(), readStructureString());
aoqi@0:                     break;
aoqi@0:                 case STATE_END:
aoqi@0:                     break;
aoqi@0:                 default:
aoqi@0:                     throw reportFatalError("Illegal state for child of EII: "+item);
aoqi@0:             }
aoqi@0:         } while(item != STATE_END);
aoqi@0: 
aoqi@0:         _contentHandler.endElement(uri, localName, qName);
aoqi@0: 
aoqi@0:         if (hasNamespaceAttributes) {
aoqi@0:             processEndPrefixMapping();
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void readInscopeNamespaces(Set<String> prefixSet) throws SAXException {
aoqi@0:         for (Map.Entry<String, String> e : _buffer.getInscopeNamespaces().entrySet()) {
aoqi@0:             String key = fixNull(e.getKey());
aoqi@0:             // If the prefix is already written, do not write the prefix
aoqi@0:             if (!prefixSet.contains(key)) {
aoqi@0:                 processNamespaceAttribute(key,e.getValue());
aoqi@0:             }
aoqi@0:         }
aoqi@0: 
aoqi@0:     }
aoqi@0: 
aoqi@0:      private static String fixNull(String s) {
aoqi@0:         if (s == null) return "";
aoqi@0:         else return s;
aoqi@0:     }
aoqi@0:     private void processCommentAsCharArrayCopy() throws SAXException {
aoqi@0:         final char[] ch = readContentCharactersCopy();
aoqi@0:         processComment(ch, 0, ch.length);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processCommentAsCharArrayMedium() throws SAXException {
aoqi@0:         final int length = readStructure16();
aoqi@0:         final int start = readContentCharactersBuffer(length);
aoqi@0:         processComment(_contentCharactersBuffer, start, length);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processEndPrefixMapping() throws SAXException {
aoqi@0:         final int end = _namespaceAttributesStack[--_namespaceAttributesStackIndex];
aoqi@0: //      final int start = (_namespaceAttributesStackIndex > 0) ? _namespaceAttributesStack[_namespaceAttributesStackIndex] : 0;
aoqi@0:         final int start = (_namespaceAttributesStackIndex >= 0) ? _namespaceAttributesStartingStack[_namespaceAttributesStackIndex] : 0;
aoqi@0: 
aoqi@0:         for (int i = end - 1; i >= start; i--) {
aoqi@0:             _contentHandler.endPrefixMapping(_namespacePrefixes[i]);
aoqi@0:         }
aoqi@0:         _namespacePrefixesIndex = start;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private int processNamespaceAttributes(int item,boolean collectPrefixes, Set<String> prefixSet) throws SAXException {
aoqi@0:         do {
aoqi@0:             String prefix;
aoqi@0:             switch(getNIIState(item)) {
aoqi@0:                 case STATE_NAMESPACE_ATTRIBUTE:
aoqi@0:                     // Undeclaration of default namespace
aoqi@0:                     processNamespaceAttribute("", "");
aoqi@0:                     if(collectPrefixes) {
aoqi@0:                         prefixSet.add("");
aoqi@0:                     }
aoqi@0:                     break;
aoqi@0:                 case STATE_NAMESPACE_ATTRIBUTE_P:
aoqi@0:                     // Undeclaration of namespace
aoqi@0:                     prefix = readStructureString();
aoqi@0:                     processNamespaceAttribute(prefix, "");
aoqi@0:                     if(collectPrefixes) {
aoqi@0:                         prefixSet.add(prefix);
aoqi@0:                     }
aoqi@0:                     break;
aoqi@0:                 case STATE_NAMESPACE_ATTRIBUTE_P_U:
aoqi@0:                     // Declaration with prefix
aoqi@0:                    prefix = readStructureString();
aoqi@0:                     processNamespaceAttribute(prefix, readStructureString());
aoqi@0:                     if(collectPrefixes) {
aoqi@0:                         prefixSet.add(prefix);
aoqi@0:                     }
aoqi@0:                     break;
aoqi@0:                 case STATE_NAMESPACE_ATTRIBUTE_U:
aoqi@0:                     // Default declaration
aoqi@0:                     processNamespaceAttribute("", readStructureString());
aoqi@0:                     if(collectPrefixes) {
aoqi@0:                         prefixSet.add("");
aoqi@0:                     }
aoqi@0:                     break;
aoqi@0:                 default:
aoqi@0:                     throw reportFatalError("Illegal state: "+item);
aoqi@0:             }
aoqi@0:             readStructure();
aoqi@0: 
aoqi@0:             item = peekStructure();
aoqi@0:         } while((item & TYPE_MASK) == T_NAMESPACE_ATTRIBUTE);
aoqi@0: 
aoqi@0: 
aoqi@0:         cacheNamespacePrefixIndex();
aoqi@0: 
aoqi@0:         return item;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processAttributes(int item) throws SAXException {
aoqi@0:         do {
aoqi@0:             switch(getAIIState(item)) {
aoqi@0:                 case STATE_ATTRIBUTE_U_LN_QN:
aoqi@0:                     _attributes.addAttributeWithQName(readStructureString(), readStructureString(), readStructureString(), readStructureString(), readContentString());
aoqi@0:                     break;
aoqi@0:                 case STATE_ATTRIBUTE_P_U_LN:
aoqi@0:                 {
aoqi@0:                     final String p = readStructureString();
aoqi@0:                     final String u = readStructureString();
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     _attributes.addAttributeWithQName(u, ln, getQName(p, ln), readStructureString(), readContentString());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ATTRIBUTE_U_LN: {
aoqi@0:                     final String u = readStructureString();
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     _attributes.addAttributeWithQName(u, ln, ln, readStructureString(), readContentString());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 case STATE_ATTRIBUTE_LN: {
aoqi@0:                     final String ln = readStructureString();
aoqi@0:                     _attributes.addAttributeWithQName("", ln, ln, readStructureString(), readContentString());
aoqi@0:                     break;
aoqi@0:                 }
aoqi@0:                 default:
aoqi@0:                     throw reportFatalError("Illegal state: "+item);
aoqi@0:             }
aoqi@0:             readStructure();
aoqi@0: 
aoqi@0:             item = peekStructure();
aoqi@0:         } while((item & TYPE_MASK) == T_ATTRIBUTE);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processNamespaceAttribute(String prefix, String uri) throws SAXException {
aoqi@0:         _contentHandler.startPrefixMapping(prefix, uri);
aoqi@0: 
aoqi@0:         if (_namespacePrefixesFeature) {
aoqi@0:             // Add the namespace delcaration as an attribute
aoqi@0:             if (prefix != "") {
aoqi@0:                 _attributes.addAttributeWithQName(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, prefix,
aoqi@0:                         getQName(XMLConstants.XMLNS_ATTRIBUTE, prefix),
aoqi@0:                         "CDATA", uri);
aoqi@0:             } else {
aoqi@0:                 _attributes.addAttributeWithQName(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, XMLConstants.XMLNS_ATTRIBUTE,
aoqi@0:                         XMLConstants.XMLNS_ATTRIBUTE,
aoqi@0:                         "CDATA", uri);
aoqi@0:             }
aoqi@0:         }
aoqi@0: 
aoqi@0:         cacheNamespacePrefix(prefix);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void cacheNamespacePrefix(String prefix) {
aoqi@0:         if (_namespacePrefixesIndex == _namespacePrefixes.length) {
aoqi@0:             final String[] namespaceAttributes = new String[_namespacePrefixesIndex * 3 / 2 + 1];
aoqi@0:             System.arraycopy(_namespacePrefixes, 0, namespaceAttributes, 0, _namespacePrefixesIndex);
aoqi@0:             _namespacePrefixes = namespaceAttributes;
aoqi@0:         }
aoqi@0: 
aoqi@0:         _namespacePrefixes[_namespacePrefixesIndex++] = prefix;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void cacheNamespacePrefixIndex() {
aoqi@0:         if (_namespaceAttributesStackIndex == _namespaceAttributesStack.length) {
aoqi@0:             final int[] namespaceAttributesStack = new int[_namespaceAttributesStackIndex * 3 /2 + 1];
aoqi@0:             System.arraycopy(_namespaceAttributesStack, 0, namespaceAttributesStack, 0, _namespaceAttributesStackIndex);
aoqi@0:             _namespaceAttributesStack = namespaceAttributesStack;
aoqi@0:         }
aoqi@0: 
aoqi@0:         _namespaceAttributesStack[_namespaceAttributesStackIndex++] = _namespacePrefixesIndex;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void cacheNamespacePrefixStartingIndex() {
aoqi@0:         if (_namespaceAttributesStackIndex == _namespaceAttributesStartingStack.length) {
aoqi@0:             final int[] namespaceAttributesStart = new int[_namespaceAttributesStackIndex * 3 /2 + 1];
aoqi@0:             System.arraycopy(_namespaceAttributesStartingStack, 0, namespaceAttributesStart, 0, _namespaceAttributesStackIndex);
aoqi@0:             _namespaceAttributesStartingStack = namespaceAttributesStart;
aoqi@0:         }
aoqi@0:         _namespaceAttributesStartingStack[_namespaceAttributesStackIndex] = _namespacePrefixesIndex;
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processComment(String s)  throws SAXException {
aoqi@0:         processComment(s.toCharArray(), 0, s.length());
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processComment(char[] ch, int start, int length) throws SAXException {
aoqi@0:         _lexicalHandler.comment(ch, start, length);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private void processProcessingInstruction(String target, String data) throws SAXException {
aoqi@0:         _contentHandler.processingInstruction(target, data);
aoqi@0:     }
aoqi@0: 
aoqi@0:     private static final DefaultWithLexicalHandler DEFAULT_LEXICAL_HANDLER = new DefaultWithLexicalHandler();
aoqi@0: }