jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/istack/internal/XMLStreamReaderToContentHandler.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/istack/internal/XMLStreamReaderToContentHandler.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/istack/internal/XMLStreamReaderToContentHandler.java

Thu, 31 Aug 2017 15:18:52 +0800

author: aoqi
date: Thu, 31 Aug 2017 15:18:52 +0800
changeset 637: 9c07ef4934dd
parent 368: 0989ad8c0860
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 2012, 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.istack.internal;
 import org.xml.sax.ContentHandler;
 import org.xml.sax.SAXException;
 import org.xml.sax.Locator;
 import org.xml.sax.Attributes;
 import org.xml.sax.helpers.AttributesImpl;
 import javax.xml.stream.XMLStreamReader;
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamConstants;
 import javax.xml.namespace.QName;
 /**
  * This is a simple utility class that adapts StAX events from an
  * {@link XMLStreamReader} to SAX events on a
  * {@link ContentHandler}, bridging between the two
  * parser technologies.
  *
  * @author Ryan.Shoemaker@Sun.COM
  * @version 1.0
  */
 public class XMLStreamReaderToContentHandler {
     // StAX event source
     private final XMLStreamReader staxStreamReader;
     // SAX event sink
     private final ContentHandler saxHandler;
     // if true, when the conversion is completed, leave the cursor to the last
     // event that was fired (such as end element)
     private final boolean eagerQuit;
     /**
      * If true, not start/endDocument event.
      */
     private final boolean fragment;
     // array of the even length of the form { prefix0, uri0, prefix1, uri1, ... }
     private final String[] inscopeNamespaces;
     /**
      * @see #XMLStreamReaderToContentHandler(XMLStreamReader, ContentHandler, boolean, boolean, String[])
      */
     public XMLStreamReaderToContentHandler(XMLStreamReader staxCore, ContentHandler saxCore, boolean eagerQuit, boolean fragment) {
         this(staxCore, saxCore, eagerQuit, fragment, new String[0]);
     }
     /**
      * Construct a new StAX to SAX adapter that will convert a StAX event
      * stream into a SAX event stream.
      *
      * @param staxCore
      *                StAX event source
      * @param saxCore
      *                SAXevent sink
      * @param eagerQuit
      * @param fragment
      * @param inscopeNamespaces
      *                array of the even length of the form { prefix0, uri0, prefix1, uri1, ... }
      */
     public XMLStreamReaderToContentHandler(XMLStreamReader staxCore, ContentHandler saxCore,
             boolean eagerQuit, boolean fragment, String[] inscopeNamespaces) {
         this.staxStreamReader = staxCore;
         this.saxHandler = saxCore;
         this.eagerQuit = eagerQuit;
         this.fragment = fragment;
         this.inscopeNamespaces = inscopeNamespaces;
         assert inscopeNamespaces.length%2 == 0;
     }
     /*
      * @see StAXReaderToContentHandler#bridge()
      */
     public void bridge() throws XMLStreamException {
         try {
             // remembers the nest level of elements to know when we are done.
             int depth=0;
             // if the parser is at the start tag, proceed to the first element
             int event = staxStreamReader.getEventType();
             if(event == XMLStreamConstants.START_DOCUMENT) {
                 // nextTag doesn't correctly handle DTDs
                 while( !staxStreamReader.isStartElement() )
                     event = staxStreamReader.next();
             }
             if( event!=XMLStreamConstants.START_ELEMENT)
                 throw new IllegalStateException("The current event is not START_ELEMENT\n but " + event);
             handleStartDocument();
             for(int i=0; i < inscopeNamespaces.length; i+=2) {
                 saxHandler.startPrefixMapping(inscopeNamespaces[i], inscopeNamespaces[i+1]);
             }
             OUTER:
             do {
                 // These are all of the events listed in the javadoc for
                 // XMLEvent.
                 // The spec only really describes 11 of them.
                 switch (event) {
                     case XMLStreamConstants.START_ELEMENT :
                         depth++;
                         handleStartElement();
                         break;
                     case XMLStreamConstants.END_ELEMENT :
                         handleEndElement();
                         depth--;
                         if(depth==0 && eagerQuit)
                             break OUTER;
                         break;
                     case XMLStreamConstants.CHARACTERS :
                         handleCharacters();
                         break;
                     case XMLStreamConstants.ENTITY_REFERENCE :
                         handleEntityReference();
                         break;
                     case XMLStreamConstants.PROCESSING_INSTRUCTION :
                         handlePI();
                         break;
                     case XMLStreamConstants.COMMENT :
                         handleComment();
                         break;
                     case XMLStreamConstants.DTD :
                         handleDTD();
                         break;
                     case XMLStreamConstants.ATTRIBUTE :
                         handleAttribute();
                         break;
                     case XMLStreamConstants.NAMESPACE :
                         handleNamespace();
                         break;
                     case XMLStreamConstants.CDATA :
                         handleCDATA();
                         break;
                     case XMLStreamConstants.ENTITY_DECLARATION :
                         handleEntityDecl();
                         break;
                     case XMLStreamConstants.NOTATION_DECLARATION :
                         handleNotationDecl();
                         break;
                     case XMLStreamConstants.SPACE :
                         handleSpace();
                         break;
                     default :
                         throw new InternalError("processing event: " + event);
                 }
                 event=staxStreamReader.next();
             } while (depth!=0);
             for(int i=0; i < inscopeNamespaces.length; i+=2) {
                 saxHandler.endPrefixMapping(inscopeNamespaces[i]);
             }
             handleEndDocument();
         } catch (SAXException e) {
             throw new XMLStreamException2(e);
         }
     }
     private void handleEndDocument() throws SAXException {
         if(fragment)
             return;
         saxHandler.endDocument();
     }
     private void handleStartDocument() throws SAXException {
         if(fragment)
             return;
         saxHandler.setDocumentLocator(new Locator() {
             public int getColumnNumber() {
                 return staxStreamReader.getLocation().getColumnNumber();
             }
             public int getLineNumber() {
                 return staxStreamReader.getLocation().getLineNumber();
             }
             public String getPublicId() {
                 return staxStreamReader.getLocation().getPublicId();
             }
             public String getSystemId() {
                 return staxStreamReader.getLocation().getSystemId();
             }
         });
         saxHandler.startDocument();
     }
     private void handlePI() throws XMLStreamException {
         try {
             saxHandler.processingInstruction(
                 staxStreamReader.getPITarget(),
                 staxStreamReader.getPIData());
         } catch (SAXException e) {
             throw new XMLStreamException2(e);
         }
     }
     private void handleCharacters() throws XMLStreamException {
         try {
             saxHandler.characters(
                 staxStreamReader.getTextCharacters(),
                 staxStreamReader.getTextStart(),
                 staxStreamReader.getTextLength() );
         } catch (SAXException e) {
             throw new XMLStreamException2(e);
         }
     }
     private void handleEndElement() throws XMLStreamException {
         QName qName = staxStreamReader.getName();
         try {
             String pfix = qName.getPrefix();
             String rawname = (pfix == null || pfix.length() == 0)
                     ? qName.getLocalPart()
                     : pfix + ':' + qName.getLocalPart();
             // fire endElement
             saxHandler.endElement(
                 qName.getNamespaceURI(),
                 qName.getLocalPart(),
                 rawname);
             // end namespace bindings
             int nsCount = staxStreamReader.getNamespaceCount();
             for (int i = nsCount - 1; i >= 0; i--) {
                 String prefix = staxStreamReader.getNamespacePrefix(i);
                 if (prefix == null) { // true for default namespace
                     prefix = "";
                 }
                 saxHandler.endPrefixMapping(prefix);
             }
         } catch (SAXException e) {
             throw new XMLStreamException2(e);
         }
     }
     private void handleStartElement() throws XMLStreamException {
         try {
             // start namespace bindings
             int nsCount = staxStreamReader.getNamespaceCount();
             for (int i = 0; i < nsCount; i++) {
                 saxHandler.startPrefixMapping(
                     fixNull(staxStreamReader.getNamespacePrefix(i)),
                     fixNull(staxStreamReader.getNamespaceURI(i)));
             }
             // fire startElement
             QName qName = staxStreamReader.getName();
             String prefix = qName.getPrefix();
             String rawname;
             if(prefix==null || prefix.length()==0)
                 rawname = qName.getLocalPart();
             else
                 rawname = prefix + ':' + qName.getLocalPart();
             Attributes attrs = getAttributes();
             saxHandler.startElement(
                 qName.getNamespaceURI(),
                 qName.getLocalPart(),
                 rawname,
                 attrs);
         } catch (SAXException e) {
             throw new XMLStreamException2(e);
         }
     }
     private static String fixNull(String s) {
         if(s==null)     return "";
         else            return s;
     }
     /**
      * Get the attributes associated with the given START_ELEMENT or ATTRIBUTE
      * StAXevent.
      *
      * @return the StAX attributes converted to an org.xml.sax.Attributes
      */
     private Attributes getAttributes() {
         AttributesImpl attrs = new AttributesImpl();
         int eventType = staxStreamReader.getEventType();
         if (eventType != XMLStreamConstants.ATTRIBUTE
             && eventType != XMLStreamConstants.START_ELEMENT) {
             throw new InternalError(
                 "getAttributes() attempting to process: " + eventType);
         }
         // in SAX, namespace declarations are not part of attributes by default.
         // (there's a property to control that, but as far as we are concerned
         // we don't use it.) So don't add xmlns:* to attributes.
         // gather non-namespace attrs
         for (int i = 0; i < staxStreamReader.getAttributeCount(); i++) {
             String uri = staxStreamReader.getAttributeNamespace(i);
             if(uri==null)   uri="";
             String localName = staxStreamReader.getAttributeLocalName(i);
             String prefix = staxStreamReader.getAttributePrefix(i);
             String qName;
             if(prefix==null || prefix.length()==0)
                 qName = localName;
             else
                 qName = prefix + ':' + localName;
             String type = staxStreamReader.getAttributeType(i);
             String value = staxStreamReader.getAttributeValue(i);
             attrs.addAttribute(uri, localName, qName, type, value);
         }
         return attrs;
     }
     private void handleNamespace() {
         // no-op ???
         // namespace events don't normally occur outside of a startElement
         // or endElement
     }
     private void handleAttribute() {
         // no-op ???
         // attribute events don't normally occur outside of a startElement
         // or endElement
     }
     private void handleDTD() {
         // no-op ???
         // it seems like we need to pass this info along, but how?
     }
     private void handleComment() {
         // no-op ???
     }
     private void handleEntityReference() {
         // no-op ???
     }
     private void handleSpace() {
         // no-op ???
         // this event is listed in the javadoc, but not in the spec.
     }
     private void handleNotationDecl() {
         // no-op ???
         // this event is listed in the javadoc, but not in the spec.
     }
     private void handleEntityDecl() {
         // no-op ???
         // this event is listed in the javadoc, but not in the spec.
     }
     private void handleCDATA() {
         // no-op ???
         // this event is listed in the javadoc, but not in the spec.
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/istack/internal/XMLStreamReaderToContentHandler.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/istack/internal/XMLStreamReaderToContentHandler.java