author | joehw |
Wed, 10 Jul 2019 16:45:28 +0000 | |
changeset 55648 | ba72dac556c3 |
parent 47216 | 71c04702a3d5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.org.apache.xalan.internal.xsltc.trax; |
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import java.io.IOException; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.ContentHandler; |
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import org.xml.sax.DTDHandler; |
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import org.xml.sax.EntityResolver; |
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import org.xml.sax.ErrorHandler; |
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import org.xml.sax.InputSource; |
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import org.xml.sax.Locator; |
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import org.xml.sax.SAXException; |
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import org.xml.sax.SAXNotRecognizedException; |
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import org.xml.sax.SAXNotSupportedException; |
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import org.xml.sax.XMLReader; |
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import org.xml.sax.ext.LexicalHandler; |
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import org.xml.sax.ext.Locator2; |
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import org.xml.sax.helpers.AttributesImpl; |
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import com.sun.org.apache.xalan.internal.xsltc.dom.SAXImpl; |
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import javax.xml.namespace.QName; |
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import javax.xml.stream.XMLStreamReader; |
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import javax.xml.stream.XMLStreamConstants; |
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import javax.xml.stream.XMLStreamException; |
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/** |
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* @author Padmaja Vedula |
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* @author Sunitha Reddy |
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*/ |
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public class StAXStream2SAX implements XMLReader, Locator { |
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//private final static String EMPTYSTRING = ""; |
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//private static final String XMLNS_PREFIX = "xmlns"; |
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// StAX Stream source |
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private final XMLStreamReader staxStreamReader; |
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//private Node _dom = null; |
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private ContentHandler _sax = null; |
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private LexicalHandler _lex = null; |
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private SAXImpl _saxImpl = null; |
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public StAXStream2SAX(XMLStreamReader staxSrc) { |
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staxStreamReader = staxSrc; |
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} |
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public ContentHandler getContentHandler() { |
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return _sax; |
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} |
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public void setContentHandler(ContentHandler handler) throws |
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NullPointerException |
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{ |
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_sax = handler; |
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if (handler instanceof LexicalHandler) { |
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_lex = (LexicalHandler) handler; |
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} |
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if (handler instanceof SAXImpl) { |
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_saxImpl = (SAXImpl)handler; |
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} |
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} |
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public void parse(InputSource unused) throws IOException, SAXException { |
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try { |
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bridge(); |
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} catch (XMLStreamException e) { |
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throw new SAXException(e); |
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} |
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} |
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//Main Work Starts Here. |
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public void parse() throws IOException, SAXException, XMLStreamException { |
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bridge(); |
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} |
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/** |
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* This class is only used internally so this method should never |
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* be called. |
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*/ |
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public void parse(String sysId) throws IOException, SAXException { |
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throw new IOException("This method is not yet implemented."); |
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} |
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public void bridge() throws XMLStreamException { |
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try { |
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// remembers the nest level of elements to know when we are done. |
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int depth=0; |
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boolean startedAtDocument = false; |
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// skip over START_DOCUMENT |
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int event = staxStreamReader.getEventType(); |
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if (event == XMLStreamConstants.START_DOCUMENT) { |
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startedAtDocument = true; |
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event = staxStreamReader.next(); |
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} |
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handleStartDocument(); |
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// Handle the prolog: http://www.w3.org/TR/REC-xml/#NT-prolog |
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while (event != XMLStreamConstants.START_ELEMENT) { |
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switch (event) { |
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case XMLStreamConstants.CHARACTERS : |
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handleCharacters(); |
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break; |
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case XMLStreamConstants.PROCESSING_INSTRUCTION : |
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handlePI(); |
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break; |
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case XMLStreamConstants.COMMENT : |
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handleComment(); |
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break; |
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case XMLStreamConstants.DTD : |
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handleDTD(); |
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break; |
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case XMLStreamConstants.SPACE : |
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handleSpace(); |
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break; |
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default : |
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throw new InternalError("processing prolog event: " + event); |
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} |
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event=staxStreamReader.next(); |
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} |
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do { |
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// These are all of the events listed in the javadoc for |
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// XMLEvent. |
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// The spec only really describes 11 of them. |
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switch (event) { |
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case XMLStreamConstants.START_ELEMENT : |
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depth++; |
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handleStartElement(); |
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break; |
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case XMLStreamConstants.END_ELEMENT : |
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handleEndElement(); |
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depth--; |
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break; |
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case XMLStreamConstants.CHARACTERS : |
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handleCharacters(); |
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break; |
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case XMLStreamConstants.ENTITY_REFERENCE : |
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handleEntityReference(); |
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break; |
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case XMLStreamConstants.PROCESSING_INSTRUCTION : |
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handlePI(); |
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break; |
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case XMLStreamConstants.COMMENT : |
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handleComment(); |
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break; |
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case XMLStreamConstants.DTD : |
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handleDTD(); |
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break; |
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case XMLStreamConstants.ATTRIBUTE : |
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handleAttribute(); |
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break; |
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case XMLStreamConstants.NAMESPACE : |
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handleNamespace(); |
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break; |
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case XMLStreamConstants.CDATA : |
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handleCDATA(); |
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break; |
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case XMLStreamConstants.ENTITY_DECLARATION : |
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handleEntityDecl(); |
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break; |
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case XMLStreamConstants.NOTATION_DECLARATION : |
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handleNotationDecl(); |
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break; |
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case XMLStreamConstants.SPACE : |
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handleSpace(); |
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break; |
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default : |
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throw new InternalError("processing event: " + event); |
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} |
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event=staxStreamReader.next(); |
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} while (depth!=0); |
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if (startedAtDocument) { |
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// Handle the Misc (http://www.w3.org/TR/REC-xml/#NT-Misc) that can follow the document element |
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while (event != XMLStreamConstants.END_DOCUMENT) { |
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switch (event) { |
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case XMLStreamConstants.CHARACTERS : |
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handleCharacters(); |
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break; |
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case XMLStreamConstants.PROCESSING_INSTRUCTION : |
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handlePI(); |
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break; |
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case XMLStreamConstants.COMMENT : |
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handleComment(); |
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break; |
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case XMLStreamConstants.SPACE : |
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handleSpace(); |
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break; |
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default : |
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throw new InternalError("processing misc event after document element: " + event); |
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} |
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event=staxStreamReader.next(); |
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} |
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} |
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handleEndDocument(); |
234 |
} catch (SAXException e) { |
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throw new XMLStreamException(e); |
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} |
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} |
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239 |
private void handleEndDocument() throws SAXException { |
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_sax.endDocument(); |
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} |
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private void handleStartDocument() throws SAXException { |
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_sax.setDocumentLocator(new Locator2() { |
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public int getColumnNumber() { |
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return staxStreamReader.getLocation().getColumnNumber(); |
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} |
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public int getLineNumber() { |
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return staxStreamReader.getLocation().getLineNumber(); |
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} |
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public String getPublicId() { |
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return staxStreamReader.getLocation().getPublicId(); |
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} |
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public String getSystemId() { |
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return staxStreamReader.getLocation().getSystemId(); |
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} |
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public String getXMLVersion() { |
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return staxStreamReader.getVersion(); |
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} |
|
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public String getEncoding() { |
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return staxStreamReader.getEncoding(); |
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} |
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}); |
|
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_sax.startDocument(); |
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} |
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266 |
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267 |
private void handlePI() throws XMLStreamException { |
|
268 |
try { |
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269 |
_sax.processingInstruction( |
|
270 |
staxStreamReader.getPITarget(), |
|
271 |
staxStreamReader.getPIData()); |
|
272 |
} catch (SAXException e) { |
|
273 |
throw new XMLStreamException(e); |
|
274 |
} |
|
275 |
} |
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276 |
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277 |
private void handleCharacters() throws XMLStreamException { |
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278 |
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279 |
// workaround for bugid 5046319 - switch over to commented section |
|
280 |
// below when it is fixed. |
|
281 |
int textLength = staxStreamReader.getTextLength(); |
|
282 |
char[] chars = new char[textLength]; |
|
283 |
||
284 |
staxStreamReader.getTextCharacters(0, chars, 0, textLength); |
|
285 |
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286 |
try { |
|
287 |
_sax.characters(chars, 0, chars.length); |
|
288 |
} catch (SAXException e) { |
|
289 |
throw new XMLStreamException(e); |
|
290 |
} |
|
291 |
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292 |
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293 |
// int start = 0; |
|
294 |
// int len; |
|
295 |
// do { |
|
296 |
// len = staxStreamReader.getTextCharacters(start, buf, 0, buf.length); |
|
297 |
// start += len; |
|
298 |
// try { |
|
299 |
// _sax.characters(buf, 0, len); |
|
300 |
// } catch (SAXException e) { |
|
301 |
// throw new XMLStreamException(e); |
|
302 |
// } |
|
303 |
// } while (len == buf.length); |
|
304 |
} |
|
305 |
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306 |
private void handleEndElement() throws XMLStreamException { |
|
307 |
QName qName = staxStreamReader.getName(); |
|
308 |
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309 |
try { |
|
310 |
//construct prefix:localName from qName |
|
311 |
String qname = ""; |
|
312 |
if (qName.getPrefix() != null && qName.getPrefix().trim().length() != 0){ |
|
313 |
qname = qName.getPrefix() + ":"; |
|
314 |
} |
|
315 |
qname += qName.getLocalPart(); |
|
316 |
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317 |
// fire endElement |
|
318 |
_sax.endElement( |
|
319 |
qName.getNamespaceURI(), |
|
320 |
qName.getLocalPart(), |
|
321 |
qname); |
|
322 |
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323 |
// end namespace bindings |
|
324 |
int nsCount = staxStreamReader.getNamespaceCount(); |
|
325 |
for (int i = nsCount - 1; i >= 0; i--) { |
|
326 |
String prefix = staxStreamReader.getNamespacePrefix(i); |
|
327 |
if (prefix == null) { // true for default namespace |
|
328 |
prefix = ""; |
|
329 |
} |
|
330 |
_sax.endPrefixMapping(prefix); |
|
331 |
} |
|
332 |
} catch (SAXException e) { |
|
333 |
throw new XMLStreamException(e); |
|
334 |
} |
|
335 |
} |
|
336 |
||
337 |
private void handleStartElement() throws XMLStreamException { |
|
338 |
||
339 |
try { |
|
340 |
// start namespace bindings |
|
341 |
int nsCount = staxStreamReader.getNamespaceCount(); |
|
342 |
for (int i = 0; i < nsCount; i++) { |
|
343 |
String prefix = staxStreamReader.getNamespacePrefix(i); |
|
344 |
if (prefix == null) { // true for default namespace |
|
345 |
prefix = ""; |
|
346 |
} |
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41506 | 347 |
String uri = staxStreamReader.getNamespaceURI(i); |
348 |
if (uri == null && prefix.isEmpty()) { // true for default namespace |
|
349 |
uri = ""; |
|
350 |
} |
|
351 |
||
352 |
_sax.startPrefixMapping(prefix, uri); |
|
12005 | 353 |
} |
354 |
||
355 |
// fire startElement |
|
356 |
QName qName = staxStreamReader.getName(); |
|
357 |
String prefix = qName.getPrefix(); |
|
358 |
String rawname; |
|
359 |
if(prefix==null || prefix.length()==0) |
|
360 |
rawname = qName.getLocalPart(); |
|
361 |
else |
|
362 |
rawname = prefix + ':' + qName.getLocalPart(); |
|
363 |
Attributes attrs = getAttributes(); |
|
364 |
_sax.startElement( |
|
365 |
qName.getNamespaceURI(), |
|
366 |
qName.getLocalPart(), |
|
367 |
rawname, |
|
368 |
attrs); |
|
369 |
} catch (SAXException e) { |
|
370 |
throw new XMLStreamException(e); |
|
371 |
} |
|
372 |
} |
|
373 |
||
374 |
/** |
|
375 |
* Get the attributes associated with the given START_ELEMENT or ATTRIBUTE |
|
376 |
* StAXevent. |
|
377 |
* |
|
378 |
* @return the StAX attributes converted to an org.xml.sax.Attributes |
|
379 |
*/ |
|
380 |
private Attributes getAttributes() { |
|
381 |
AttributesImpl attrs = new AttributesImpl(); |
|
382 |
||
383 |
int eventType = staxStreamReader.getEventType(); |
|
384 |
if (eventType != XMLStreamConstants.ATTRIBUTE |
|
385 |
&& eventType != XMLStreamConstants.START_ELEMENT) { |
|
386 |
throw new InternalError( |
|
387 |
"getAttributes() attempting to process: " + eventType); |
|
388 |
} |
|
389 |
||
390 |
// in SAX, namespace declarations are not part of attributes by default. |
|
391 |
// (there's a property to control that, but as far as we are concerned |
|
392 |
// we don't use it.) So don't add xmlns:* to attributes. |
|
393 |
||
394 |
// gather non-namespace attrs |
|
395 |
for (int i = 0; i < staxStreamReader.getAttributeCount(); i++) { |
|
396 |
String uri = staxStreamReader.getAttributeNamespace(i); |
|
397 |
if(uri==null) uri=""; |
|
398 |
String localName = staxStreamReader.getAttributeLocalName(i); |
|
399 |
String prefix = staxStreamReader.getAttributePrefix(i); |
|
400 |
String qName; |
|
401 |
if(prefix==null || prefix.length()==0) |
|
402 |
qName = localName; |
|
403 |
else |
|
404 |
qName = prefix + ':' + localName; |
|
405 |
String type = staxStreamReader.getAttributeType(i); |
|
406 |
String value = staxStreamReader.getAttributeValue(i); |
|
407 |
||
408 |
attrs.addAttribute(uri, localName, qName, type, value); |
|
409 |
} |
|
410 |
||
411 |
return attrs; |
|
412 |
} |
|
413 |
||
414 |
private void handleNamespace() { |
|
415 |
// no-op ??? |
|
416 |
// namespace events don't normally occur outside of a startElement |
|
417 |
// or endElement |
|
418 |
} |
|
419 |
||
420 |
private void handleAttribute() { |
|
421 |
// no-op ??? |
|
422 |
// attribute events don't normally occur outside of a startElement |
|
423 |
// or endElement |
|
424 |
} |
|
425 |
||
426 |
private void handleDTD() { |
|
427 |
// no-op ??? |
|
428 |
// it seems like we need to pass this info along, but how? |
|
429 |
} |
|
430 |
||
431 |
private void handleComment() { |
|
432 |
// no-op ??? |
|
433 |
} |
|
434 |
||
435 |
private void handleEntityReference() { |
|
436 |
// no-op ??? |
|
437 |
} |
|
438 |
||
439 |
private void handleSpace() { |
|
440 |
// no-op ??? |
|
441 |
// this event is listed in the javadoc, but not in the spec. |
|
442 |
} |
|
443 |
||
444 |
private void handleNotationDecl() { |
|
445 |
// no-op ??? |
|
446 |
// this event is listed in the javadoc, but not in the spec. |
|
447 |
} |
|
448 |
||
449 |
private void handleEntityDecl() { |
|
450 |
// no-op ??? |
|
451 |
// this event is listed in the javadoc, but not in the spec. |
|
452 |
} |
|
453 |
||
454 |
private void handleCDATA() { |
|
455 |
// no-op ??? |
|
456 |
// this event is listed in the javadoc, but not in the spec. |
|
457 |
} |
|
458 |
||
459 |
||
460 |
/** |
|
461 |
* This class is only used internally so this method should never |
|
462 |
* be called. |
|
463 |
*/ |
|
464 |
public DTDHandler getDTDHandler() { |
|
465 |
return null; |
|
466 |
} |
|
467 |
||
468 |
/** |
|
469 |
* This class is only used internally so this method should never |
|
470 |
* be called. |
|
471 |
*/ |
|
472 |
public ErrorHandler getErrorHandler() { |
|
473 |
return null; |
|
474 |
} |
|
475 |
||
476 |
/** |
|
477 |
* This class is only used internally so this method should never |
|
478 |
* be called. |
|
479 |
*/ |
|
480 |
public boolean getFeature(String name) throws SAXNotRecognizedException, |
|
481 |
SAXNotSupportedException |
|
482 |
{ |
|
483 |
return false; |
|
484 |
} |
|
485 |
||
486 |
/** |
|
487 |
* This class is only used internally so this method should never |
|
488 |
* be called. |
|
489 |
*/ |
|
490 |
public void setFeature(String name, boolean value) throws |
|
491 |
SAXNotRecognizedException, SAXNotSupportedException |
|
492 |
{ |
|
493 |
} |
|
494 |
||
495 |
/** |
|
496 |
* This class is only used internally so this method should never |
|
497 |
* be called. |
|
498 |
*/ |
|
499 |
public void setDTDHandler(DTDHandler handler) throws NullPointerException { |
|
500 |
} |
|
501 |
||
502 |
/** |
|
503 |
* This class is only used internally so this method should never |
|
504 |
* be called. |
|
505 |
*/ |
|
506 |
public void setEntityResolver(EntityResolver resolver) throws |
|
507 |
NullPointerException |
|
508 |
{ |
|
509 |
} |
|
510 |
||
511 |
/** |
|
512 |
* This class is only used internally so this method should never |
|
513 |
* be called. |
|
514 |
*/ |
|
515 |
public EntityResolver getEntityResolver() { |
|
516 |
return null; |
|
517 |
} |
|
518 |
||
519 |
/** |
|
520 |
* This class is only used internally so this method should never |
|
521 |
* be called. |
|
522 |
*/ |
|
523 |
public void setErrorHandler(ErrorHandler handler) throws |
|
524 |
NullPointerException |
|
525 |
{ |
|
526 |
} |
|
527 |
||
528 |
/** |
|
529 |
* This class is only used internally so this method should never |
|
530 |
* be called. |
|
531 |
*/ |
|
532 |
public void setProperty(String name, Object value) throws |
|
533 |
SAXNotRecognizedException, SAXNotSupportedException { |
|
534 |
} |
|
535 |
||
536 |
/** |
|
537 |
* This class is only used internally so this method should never |
|
538 |
* be called. |
|
539 |
*/ |
|
540 |
public Object getProperty(String name) throws SAXNotRecognizedException, |
|
541 |
SAXNotSupportedException |
|
542 |
{ |
|
543 |
return null; |
|
544 |
} |
|
545 |
||
546 |
/** |
|
547 |
* This class is only used internally so this method should never |
|
548 |
* be called. |
|
549 |
*/ |
|
550 |
public int getColumnNumber() { |
|
551 |
return 0; |
|
552 |
} |
|
553 |
||
554 |
/** |
|
555 |
* This class is only used internally so this method should never |
|
556 |
* be called. |
|
557 |
*/ |
|
558 |
public int getLineNumber() { |
|
559 |
return 0; |
|
560 |
} |
|
561 |
||
562 |
/** |
|
563 |
* This class is only used internally so this method should never |
|
564 |
* be called. |
|
565 |
*/ |
|
566 |
public String getPublicId() { |
|
567 |
return null; |
|
568 |
} |
|
569 |
||
570 |
/** |
|
571 |
* This class is only used internally so this method should never |
|
572 |
* be called. |
|
573 |
*/ |
|
574 |
public String getSystemId() { |
|
575 |
return null; |
|
576 |
} |
|
577 |
||
578 |
} |