src/share/jaxws_classes/com/sun/xml/internal/bind/marshaller/SAX2DOMEx.java

Tue, 06 Mar 2012 16:09:35 -0800

author
ohair
date
Tue, 06 Mar 2012 16:09:35 -0800
changeset 286
f50545b5e2f1
child 368
0989ad8c0860
permissions
-rw-r--r--

7150322: Stop using drop source bundles in jaxws
Reviewed-by: darcy, ohrstrom

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    26 /*
    27  * SAX2DOMEx.java
    28  *
    29  * Created on February 22, 2002, 1:55 PM
    30  */
    31 package com.sun.xml.internal.bind.marshaller;
    33 import java.util.Stack;
    35 import javax.xml.parsers.DocumentBuilderFactory;
    36 import javax.xml.parsers.ParserConfigurationException;
    38 import com.sun.xml.internal.bind.util.Which;
    39 import com.sun.istack.internal.FinalArrayList;
    41 import org.w3c.dom.Document;
    42 import org.w3c.dom.Element;
    43 import org.w3c.dom.Node;
    44 import org.w3c.dom.Text;
    45 import org.xml.sax.Attributes;
    46 import org.xml.sax.ContentHandler;
    47 import org.xml.sax.Locator;
    49 /**
    50  * Builds a DOM tree from SAX2 events.
    51  *
    52  * @author  Vivek Pandey
    53  * @since 1.0
    54  */
    55 public class SAX2DOMEx implements ContentHandler {
    57     private Node node = null;
    58     private boolean isConsolidate;
    59     protected final Stack<Node> nodeStack = new Stack<Node>();
    60     private final FinalArrayList<String> unprocessedNamespaces = new FinalArrayList<String>();
    61     /**
    62      * Document object that owns the specified node.
    63      */
    64     protected final Document document;
    66     /**
    67      * @param   node
    68      *      Nodes will be created and added under this object.
    69      */
    70     public SAX2DOMEx(Node node) {
    71         this(node, false);
    72     }
    74     /**
    75      * @param   node
    76      *      Nodes will be created and added under this object.
    77      */
    78     public SAX2DOMEx(Node node, boolean isConsolidate) {
    79         this.node = node;
    80         this.isConsolidate = isConsolidate;
    81         nodeStack.push(this.node);
    83         if (node instanceof Document) {
    84             this.document = (Document) node;
    85         } else {
    86             this.document = node.getOwnerDocument();
    87         }
    88     }
    90     /**
    91      * Creates a fresh empty DOM document and adds nodes under this document.
    92      */
    93     public SAX2DOMEx() throws ParserConfigurationException {
    94         DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    95         factory.setNamespaceAware(true);
    96         factory.setValidating(false);
    98         document = factory.newDocumentBuilder().newDocument();
    99         node = document;
   100         nodeStack.push(document);
   101     }
   103     public final Element getCurrentElement() {
   104         return (Element) nodeStack.peek();
   105     }
   107     public Node getDOM() {
   108         return node;
   109     }
   111     public void startDocument() {
   112     }
   114     public void endDocument() {
   115     }
   117     protected void namespace(Element element, String prefix, String uri) {
   118         String qname;
   119         if ("".equals(prefix) || prefix == null) {
   120             qname = "xmlns";
   121         } else {
   122             qname = "xmlns:" + prefix;
   123         }
   125         // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0)
   126         // have a problem of re-setting the same namespace attribute twice.
   127         // work around this bug removing it first.
   128         if (element.hasAttributeNS("http://www.w3.org/2000/xmlns/", qname)) {
   129             // further workaround for an old Crimson bug where the removeAttribtueNS
   130             // method throws NPE when the element doesn't have any attribute.
   131             // to be on the safe side, check the existence of attributes before
   132             // attempting to remove it.
   133             // for details about this bug, see org.apache.crimson.tree.ElementNode2
   134             // line 540 or the following message:
   135             // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767
   136             element.removeAttributeNS("http://www.w3.org/2000/xmlns/", qname);
   137         }
   138         // workaround until here
   140         element.setAttributeNS("http://www.w3.org/2000/xmlns/", qname, uri);
   141     }
   143     public void startElement(String namespace, String localName, String qName, Attributes attrs) {
   144         Node parent = nodeStack.peek();
   146         // some broken DOM implementatino (we confirmed it with SAXON)
   147         // return null from this method.
   148         Element element = document.createElementNS(namespace, qName);
   150         if (element == null) {
   151             // if so, report an user-friendly error message,
   152             // rather than dying mysteriously with NPE.
   153             throw new AssertionError(
   154                     Messages.format(Messages.DOM_IMPL_DOESNT_SUPPORT_CREATELEMENTNS,
   155                     document.getClass().getName(),
   156                     Which.which(document.getClass())));
   157         }
   159         // process namespace bindings
   160         for (int i = 0; i < unprocessedNamespaces.size(); i += 2) {
   161             String prefix = unprocessedNamespaces.get(i + 0);
   162             String uri = unprocessedNamespaces.get(i + 1);
   164             namespace(element, prefix, uri);
   165         }
   166         unprocessedNamespaces.clear();
   169         if (attrs != null) {
   170             int length = attrs.getLength();
   171             for (int i = 0; i < length; i++) {
   172                 String namespaceuri = attrs.getURI(i);
   173                 String value = attrs.getValue(i);
   174                 String qname = attrs.getQName(i);
   175                 element.setAttributeNS(namespaceuri, qname, value);
   176             }
   177         }
   178         // append this new node onto current stack node
   179         parent.appendChild(element);
   180         // push this node onto stack
   181         nodeStack.push(element);
   182     }
   184     public void endElement(String namespace, String localName, String qName) {
   185         nodeStack.pop();
   186     }
   188     public void characters(char[] ch, int start, int length) {
   189         characters(new String(ch, start, length));
   190     }
   192     protected Text characters(String s) {
   193         Node parent = nodeStack.peek();
   194         Node lastChild = parent.getLastChild();
   195         Text text;
   196         if (isConsolidate && lastChild != null && lastChild.getNodeType() == Node.TEXT_NODE) {
   197             text = (Text) lastChild;
   198             text.appendData(s);
   199         } else {
   200             text = document.createTextNode(s);
   201             parent.appendChild(text);
   202         }
   203         return text;
   204     }
   206     public void ignorableWhitespace(char[] ch, int start, int length) {
   207     }
   209     public void processingInstruction(String target, String data) throws org.xml.sax.SAXException {
   210         Node parent = nodeStack.peek();
   211         Node n = document.createProcessingInstruction(target, data);
   212         parent.appendChild(n);
   213     }
   215     public void setDocumentLocator(Locator locator) {
   216     }
   218     public void skippedEntity(String name) {
   219     }
   221     public void startPrefixMapping(String prefix, String uri) {
   222         unprocessedNamespaces.add(prefix);
   223         unprocessedNamespaces.add(uri);
   224     }
   226     public void endPrefixMapping(String prefix) {
   227     }
   228 }

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