Mercurial > jdk8-mips64-public > jaxws / file revision

 /*

  * Copyright (c) 2005, 2010, 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

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  */

 package com.sun.xml.internal.txw2.output;

 import org.w3c.dom.Document;

 import org.w3c.dom.Element;

 import org.w3c.dom.Node;

 import org.w3c.dom.Text;

 import org.xml.sax.Attributes;

 import org.xml.sax.ContentHandler;

 import org.xml.sax.Locator;

 import org.xml.sax.SAXException;

 import org.xml.sax.ext.LexicalHandler;

 import javax.xml.parsers.DocumentBuilder;

 import javax.xml.parsers.DocumentBuilderFactory;

 import javax.xml.parsers.ParserConfigurationException;

 import javax.xml.transform.dom.DOMResult;

 import java.util.ArrayList;

 import java.util.Stack;

 import com.sun.xml.internal.txw2.TxwException;

 /**

  * {@link XmlSerializer} for {@link javax.xml.transform.dom.DOMResult} and {@link org.w3c.dom.Node}.

  *

  * @author Ryan.Shoemaker@Sun.COM

  */

 public class DomSerializer implements XmlSerializer {

     // delegate to SaxSerializer

     private final SaxSerializer serializer;

     public DomSerializer(Node node) {

         Dom2SaxAdapter adapter = new Dom2SaxAdapter(node);

         serializer = new SaxSerializer(adapter,adapter,false);

     }

     public DomSerializer(DOMResult domResult) {

         Node node = domResult.getNode();

         if (node == null) {

             try {

                 DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

                 dbf.setNamespaceAware(true);

                 DocumentBuilder db = dbf.newDocumentBuilder();

                 Document doc = db.newDocument();

                 domResult.setNode(doc);

                 serializer = new SaxSerializer(new Dom2SaxAdapter(doc),null,false);

             } catch (ParserConfigurationException pce) {

                 throw new TxwException(pce);

             }

         } else {

             serializer = new SaxSerializer(new Dom2SaxAdapter(node),null,false);

         }

     }

     // XmlSerializer api's - delegate to SaxSerializer

     public void startDocument() {

         serializer.startDocument();

     }

     public void beginStartTag(String uri, String localName, String prefix) {

         serializer.beginStartTag(uri, localName, prefix);

     }

     public void writeAttribute(String uri, String localName, String prefix, StringBuilder value) {

         serializer.writeAttribute(uri, localName, prefix, value);

     }

     public void writeXmlns(String prefix, String uri) {

         serializer.writeXmlns(prefix, uri);

     }

     public void endStartTag(String uri, String localName, String prefix) {

         serializer.endStartTag(uri, localName, prefix);

     }

     public void endTag() {

         serializer.endTag();

     }

     public void text(StringBuilder text) {

         serializer.text(text);

     }

     public void cdata(StringBuilder text) {

         serializer.cdata(text);

     }

     public void comment(StringBuilder comment) {

         serializer.comment(comment);

     }

     public void endDocument() {

         serializer.endDocument();

     }

     public void flush() {

         // no flushing

     }

 }

 /**

  * Builds a DOM tree from SAX2 events.

  *

  * @author  Vivek Pandey

  */

 class Dom2SaxAdapter implements ContentHandler, LexicalHandler {

     private final Node _node;

     private final Stack _nodeStk = new Stack();

     private boolean inCDATA;

     public final Element getCurrentElement() {

         return (Element) _nodeStk.peek();

     }

     /**

      * Document object that owns the specified node.

      */

     private final Document _document;

     /**

      * @param   node

      *      Nodes will be created and added under this object.

      */

     public Dom2SaxAdapter(Node node)

     {

         _node = node;

         _nodeStk.push(_node);

         if( node instanceof Document )

             this._document = (Document)node;

         else

             this._document = node.getOwnerDocument();

     }

     /**

      * Creates a fresh empty DOM document and adds nodes under this document.

      */

     public Dom2SaxAdapter() throws ParserConfigurationException {

         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

         factory.setNamespaceAware(true);

         factory.setValidating(false);

         _document = factory.newDocumentBuilder().newDocument();

         _node = _document;

         _nodeStk.push( _document );

     }

     public Node getDOM() {

         return _node;

     }

     public void startDocument() {

     }

     public void endDocument(){

     }

     public void startElement(String namespace, String localName, String qName, Attributes attrs){

         // some broken DOM implementatino (we confirmed it with SAXON)

         // return null from this method.

         Element element = _document.createElementNS(namespace, qName);

         if( element==null ) {

             // if so, report an user-friendly error message,

             // rather than dying mysteriously with NPE.

             throw new TxwException("Your DOM provider doesn't support the createElementNS method properly");

         }

         // process namespace bindings

         for( int i=0; i<unprocessedNamespaces.size(); i+=2 ) {

             String prefix = (String)unprocessedNamespaces.get(i+0);

             String uri = (String)unprocessedNamespaces.get(i+1);

             String qname;

             if( "".equals(prefix) || prefix==null )

                 qname = "xmlns";

             else

                 qname = "xmlns:"+prefix;

             // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0)

             // have a problem of re-setting the same namespace attribute twice.

             // work around this bug removing it first.

             if( element.hasAttributeNS("http://www.w3.org/2000/xmlns/",qname) ) {

                 // further workaround for an old Crimson bug where the removeAttribtueNS

                 // method throws NPE when the element doesn't have any attribute.

                 // to be on the safe side, check the existence of attributes before

                 // attempting to remove it.

                 // for details about this bug, see org.apache.crimson.tree.ElementNode2

                 // line 540 or the following message:

                 // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767

                 element.removeAttributeNS("http://www.w3.org/2000/xmlns/",qname);

             }

             // workaround until here

             element.setAttributeNS("http://www.w3.org/2000/xmlns/",qname, uri);

         }

         unprocessedNamespaces.clear();

         int length = attrs.getLength();

         for(int i=0;i<length;i++){

             String namespaceuri = attrs.getURI(i);

             String value = attrs.getValue(i);

             String qname = attrs.getQName(i);

             element.setAttributeNS(namespaceuri, qname, value);

         }

         // append this new node onto current stack node

         getParent().appendChild(element);

         // push this node onto stack

         _nodeStk.push(element);

     }

     private final Node getParent() {

         return (Node) _nodeStk.peek();

     }

     public void endElement(String namespace, String localName, String qName){

         _nodeStk.pop();

     }

     public void characters(char[] ch, int start, int length) {

         Node text;

         if(inCDATA)

             text = _document.createCDATASection(new String(ch, start, length));

         else

             text = _document.createTextNode(new String(ch, start, length));

         getParent().appendChild(text);

     }

     public void comment(char ch[], int start, int length) throws SAXException {

         getParent().appendChild(_document.createComment(new String(ch,start,length)));

     }

     public void ignorableWhitespace(char[] ch, int start, int length) {

     }

     public void processingInstruction(String target, String data) throws org.xml.sax.SAXException{

         Node node = _document.createProcessingInstruction(target, data);

         getParent().appendChild(node);

     }

     public void setDocumentLocator(Locator locator) {

     }

     public void skippedEntity(String name) {

     }

     private ArrayList unprocessedNamespaces = new ArrayList();

     public void startPrefixMapping(String prefix, String uri) {

         unprocessedNamespaces.add(prefix);

         unprocessedNamespaces.add(uri);

     }

     public void endPrefixMapping(String prefix) {

     }

     public void startDTD(String name, String publicId, String systemId) throws SAXException {

     }

     public void endDTD() throws SAXException {

     }

     public void startEntity(String name) throws SAXException {

     }

     public void endEntity(String name) throws SAXException {

     }

     public void startCDATA() throws SAXException {

         inCDATA = true;

     }

     public void endCDATA() throws SAXException {

         inCDATA = false;

     }

 }