jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/bind/unmarshaller/DOMScanner.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/unmarshaller/DOMScanner.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/unmarshaller/DOMScanner.java

Thu, 12 Oct 2017 19:44:07 +0800

author: aoqi
date: Thu, 12 Oct 2017 19:44:07 +0800
changeset 760: e530533619ec
parent 0: 373ffda63c9a
permissions: -rw-r--r--

merge

 /*
  * Copyright (c) 1997, 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
  * questions.
  */
 package com.sun.xml.internal.bind.unmarshaller;
 import java.util.Enumeration;
 import javax.xml.bind.ValidationEventLocator;
 import javax.xml.bind.helpers.AbstractUnmarshallerImpl;
 import javax.xml.bind.helpers.ValidationEventLocatorImpl;
 import com.sun.xml.internal.bind.v2.runtime.unmarshaller.LocatorEx;
 import org.w3c.dom.Attr;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.NamedNodeMap;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.w3c.dom.ProcessingInstruction;
 import org.xml.sax.ContentHandler;
 import org.xml.sax.Locator;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 import org.xml.sax.helpers.NamespaceSupport;
 /**
  * Visits a W3C DOM tree and generates SAX2 events from it.
  *
  * <p>
  * This class is just intended to be used by {@link AbstractUnmarshallerImpl}.
  * The javax.xml.bind.helpers package is generally a wrong place to put
  * classes like this.
  *
  * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li></ul>
  * @since JAXB1.0
  */
 public class DOMScanner implements LocatorEx,InfosetScanner/*<Node> --- but can't do this to protect 1.0 clients, or can I? */
 {
     /** reference to the current node being scanned - used for determining
      *  location info for validation events */
     private Node currentNode = null;
     /** To save memory, only one instance of AttributesImpl will be used. */
     private final AttributesImpl atts = new AttributesImpl();
     /** This handler will receive SAX2 events. */
     private ContentHandler receiver=null;
     private Locator locator=this;
     public DOMScanner() {
     }
     /**
      * Configures the locator object that the SAX {@link ContentHandler} will see.
      */
     public void setLocator( Locator loc ) {
         this.locator = loc;
     }
     public void scan(Object node) throws SAXException {
         if( node instanceof Document ) {
             scan( (Document)node );
         } else {
             scan( (Element)node );
         }
     }
     public void scan( Document doc ) throws SAXException {
         scan( doc.getDocumentElement() );
     }
     public void scan( Element e) throws SAXException {
         setCurrentLocation( e );
         receiver.setDocumentLocator(locator);
         receiver.startDocument();
         NamespaceSupport nss = new NamespaceSupport();
         buildNamespaceSupport( nss, e.getParentNode() );
         for( Enumeration en = nss.getPrefixes(); en.hasMoreElements(); ) {
             String prefix = (String)en.nextElement();
             receiver.startPrefixMapping( prefix, nss.getURI(prefix) );
         }
         visit(e);
         for( Enumeration en = nss.getPrefixes(); en.hasMoreElements(); ) {
             String prefix = (String)en.nextElement();
             receiver.endPrefixMapping( prefix );
         }
         setCurrentLocation( e );
         receiver.endDocument();
     }
     /**
      * Parses a subtree starting from the element e and
      * reports SAX2 events to the specified handler.
      *
      * @deprecated in JAXB 2.0
      *      Use {@link #scan(Element)}
      */
     public void parse( Element e, ContentHandler handler ) throws SAXException {
         // it might be better to set receiver at the constructor.
         receiver = handler;
         setCurrentLocation( e );
         receiver.startDocument();
         receiver.setDocumentLocator(locator);
         visit(e);
         setCurrentLocation( e );
         receiver.endDocument();
     }
     /**
      * Similar to the parse method but it visits the ancestor nodes
      * and properly emulate the all in-scope namespace declarations.
      *
      * @deprecated in JAXB 2.0
      *      Use {@link #scan(Element)}
      */
     public void parseWithContext( Element e, ContentHandler handler ) throws SAXException {
         setContentHandler(handler);
         scan(e);
     }
     /**
      * Recursively visit ancestors and build up {@link NamespaceSupport} oject.
      */
     private void buildNamespaceSupport(NamespaceSupport nss, Node node) {
         if(node==null || node.getNodeType()!=Node.ELEMENT_NODE)
             return;
         buildNamespaceSupport( nss, node.getParentNode() );
         nss.pushContext();
         NamedNodeMap atts = node.getAttributes();
         for( int i=0; i<atts.getLength(); i++ ) {
             Attr a = (Attr)atts.item(i);
             if( "xmlns".equals(a.getPrefix()) ) {
                 nss.declarePrefix( a.getLocalName(), a.getValue() );
                 continue;
             }
             if( "xmlns".equals(a.getName()) ) {
                 nss.declarePrefix( "", a.getValue() );
                 continue;
             }
         }
     }
     /**
      * Visits an element and its subtree.
      */
     public void visit( Element e ) throws SAXException {
         setCurrentLocation( e );
         final NamedNodeMap attributes = e.getAttributes();
         atts.clear();
         int len = attributes==null ? 0: attributes.getLength();
         for( int i=len-1; i>=0; i-- ) {
             Attr a = (Attr)attributes.item(i);
             String name = a.getName();
             // start namespace binding
            if(name.startsWith("xmlns")) {
                 if(name.length()==5) {
                     receiver.startPrefixMapping( "", a.getValue() );
                 } else {
                     String localName = a.getLocalName();
                     if(localName==null) {
                         // DOM built without namespace support has this problem
                         localName = name.substring(6);
                     }
                     receiver.startPrefixMapping( localName, a.getValue() );
                 }
                 continue;
             }
             String uri = a.getNamespaceURI();
             if(uri==null)   uri="";
             String local = a.getLocalName();
             if(local==null) local = a.getName();
             // add other attributes to the attribute list
             // that we will pass to the ContentHandler
             atts.addAttribute(
                 uri,
                 local,
                 a.getName(),
                 "CDATA",
                 a.getValue());
         }
         String uri = e.getNamespaceURI();
         if(uri==null)   uri="";
         String local = e.getLocalName();
         String qname = e.getTagName();
         if(local==null) local = qname;
         receiver.startElement( uri, local, qname, atts );
         // visit its children
         NodeList children = e.getChildNodes();
         int clen = children.getLength();
         for( int i=0; i<clen; i++ )
             visit(children.item(i));
         setCurrentLocation( e );
         receiver.endElement( uri, local, qname );
         // call the endPrefixMapping method
         for( int i=len-1; i>=0; i-- ) {
             Attr a = (Attr)attributes.item(i);
             String name = a.getName();
             if(name.startsWith("xmlns")) {
                 if(name.length()==5)
                     receiver.endPrefixMapping("");
                 else
                     receiver.endPrefixMapping(a.getLocalName());
             }
         }
     }
     private void visit( Node n ) throws SAXException {
         setCurrentLocation( n );
         // if a case statement gets too big, it should be made into a separate method.
         switch(n.getNodeType()) {
         case Node.CDATA_SECTION_NODE:
         case Node.TEXT_NODE:
             String value = n.getNodeValue();
             receiver.characters( value.toCharArray(), 0, value.length() );
             break;
         case Node.ELEMENT_NODE:
             visit( (Element)n );
             break;
         case Node.ENTITY_REFERENCE_NODE:
             receiver.skippedEntity(n.getNodeName());
             break;
         case Node.PROCESSING_INSTRUCTION_NODE:
             ProcessingInstruction pi = (ProcessingInstruction)n;
             receiver.processingInstruction(pi.getTarget(),pi.getData());
             break;
         }
     }
     private void setCurrentLocation( Node currNode ) {
         currentNode = currNode;
     }
     /**
      * The same as {@link #getCurrentElement()} but
      * better typed.
      */
     public Node getCurrentLocation() {
         return currentNode;
     }
     public Object getCurrentElement() {
         return currentNode;
     }
     public LocatorEx getLocator() {
         return this;
     }
     public void setContentHandler(ContentHandler handler) {
         this.receiver = handler;
     }
     public ContentHandler getContentHandler() {
         return this.receiver;
     }
     // LocatorEx implementation
     public String getPublicId() { return null; }
     public String getSystemId() { return null; }
     public int getLineNumber() { return -1; }
     public int getColumnNumber() { return -1; }
     public ValidationEventLocator getLocation() {
         return new ValidationEventLocatorImpl(getCurrentLocation());
     }
 }

Mercurial > jdk8-mips64-public > jaxws / annotate

src/share/jaxws_classes/com/sun/xml/internal/bind/unmarshaller/DOMScanner.java@e530533619ec (annotated)

src/share/jaxws_classes/com/sun/xml/internal/bind/unmarshaller/DOMScanner.java