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src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/DOMForestScanner.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/DOMForestScanner.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

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation. Oracle designates this
aoqi@0 8 * particular file as subject to the "Classpath" exception as provided
aoqi@0 9 * by Oracle in the LICENSE file that accompanied this code.
aoqi@0 10 *
aoqi@0 11 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 14 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 15 * accompanied this code).
aoqi@0 16 *
aoqi@0 17 * You should have received a copy of the GNU General Public License version
aoqi@0 18 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 20 *
aoqi@0 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 22 * or visit www.oracle.com if you need additional information or have any
aoqi@0 23 * questions.
aoqi@0 24 */
aoqi@0 25
aoqi@0 26 package com.sun.tools.internal.ws.wsdl.parser;
aoqi@0 27
aoqi@0 28 import com.sun.xml.internal.bind.unmarshaller.DOMScanner;
aoqi@0 29 import org.w3c.dom.Document;
aoqi@0 30 import org.w3c.dom.Element;
aoqi@0 31 import org.w3c.dom.Node;
aoqi@0 32 import org.xml.sax.Attributes;
aoqi@0 33 import org.xml.sax.ContentHandler;
aoqi@0 34 import org.xml.sax.Locator;
aoqi@0 35 import org.xml.sax.SAXException;
aoqi@0 36 import org.xml.sax.helpers.XMLFilterImpl;
aoqi@0 37
aoqi@0 38 /**
aoqi@0 39 * Produces a complete series of SAX events from any DOM node
aoqi@0 40 * in the DOMForest.
aoqi@0 41 *
aoqi@0 42 * <p>
aoqi@0 43 * This class hides a logic of re-associating {@link org.xml.sax.Locator}
aoqi@0 44 * to the generated SAX event stream.
aoqi@0 45 *
aoqi@0 46 * @author
aoqi@0 47 * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
aoqi@0 48 */
aoqi@0 49 public class DOMForestScanner {
aoqi@0 50
aoqi@0 51 private final DOMForest forest;
aoqi@0 52
aoqi@0 53 /**
aoqi@0 54 * Scans DOM nodes of the given forest.
aoqi@0 55 *
aoqi@0 56 * DOM node parameters to the scan method must be a part of
aoqi@0 57 * this forest.
aoqi@0 58 */
aoqi@0 59 public DOMForestScanner( DOMForest _forest ) {
aoqi@0 60 this.forest = _forest;
aoqi@0 61 }
aoqi@0 62
aoqi@0 63 /**
aoqi@0 64 * Generates the whole set of SAX events by treating
aoqi@0 65 * element e as if it's a root element.
aoqi@0 66 */
aoqi@0 67 public void scan( Element e, ContentHandler contentHandler ) throws SAXException {
aoqi@0 68 DOMScanner scanner = new DOMScanner();
aoqi@0 69
aoqi@0 70 // insert the location resolver into the pipe line
aoqi@0 71 LocationResolver resolver = new LocationResolver(scanner);
aoqi@0 72 resolver.setContentHandler(contentHandler);
aoqi@0 73
aoqi@0 74 // parse this DOM.
aoqi@0 75 scanner.setContentHandler(resolver);
aoqi@0 76 scanner.scan(e);
aoqi@0 77 }
aoqi@0 78
aoqi@0 79 /**
aoqi@0 80 * Generates the whole set of SAX events from the given Document
aoqi@0 81 * in the DOMForest.
aoqi@0 82 */
aoqi@0 83 public void scan( Document d, ContentHandler contentHandler ) throws SAXException {
aoqi@0 84 scan( d.getDocumentElement(), contentHandler );
aoqi@0 85 }
aoqi@0 86
aoqi@0 87 /**
aoqi@0 88 * Intercepts the invocation of the setDocumentLocator method
aoqi@0 89 * and passes itself as the locator.
aoqi@0 90 *
aoqi@0 91 * If the client calls one of the methods on the Locator interface,
aoqi@0 92 * use the LocatorTable to resolve the source location.
aoqi@0 93 */
aoqi@0 94 private class LocationResolver extends XMLFilterImpl implements Locator {
aoqi@0 95 LocationResolver( DOMScanner _parent ) {
aoqi@0 96 this.parent = _parent;
aoqi@0 97 }
aoqi@0 98
aoqi@0 99 private final DOMScanner parent;
aoqi@0 100
aoqi@0 101 /**
aoqi@0 102 * Flag that tells us whether we are processing a start element event
aoqi@0 103 * or an end element event.
aoqi@0 104 *
aoqi@0 105 * DOMScanner's getCurrentLocation method doesn't tell us which, but
aoqi@0 106 * this information is necessary to return the correct source line information.
aoqi@0 107 *
aoqi@0 108 * Thus we set this flag appropriately before we pass an event to
aoqi@0 109 * the next ContentHandler, thereby making it possible to figure
aoqi@0 110 * out which location to return.
aoqi@0 111 */
aoqi@0 112 private boolean inStart = false;
aoqi@0 113
aoqi@0 114 public void setDocumentLocator(Locator locator) {
aoqi@0 115 // ignore one set by the parent.
aoqi@0 116
aoqi@0 117 super.setDocumentLocator(this);
aoqi@0 118 }
aoqi@0 119
aoqi@0 120 public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
aoqi@0 121 inStart = false;
aoqi@0 122 super.endElement(namespaceURI, localName, qName);
aoqi@0 123 }
aoqi@0 124
aoqi@0 125 public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
aoqi@0 126 throws SAXException {
aoqi@0 127 inStart = true;
aoqi@0 128 super.startElement(namespaceURI, localName, qName, atts);
aoqi@0 129 }
aoqi@0 130
aoqi@0 131
aoqi@0 132
aoqi@0 133
aoqi@0 134 private Locator findLocator() {
aoqi@0 135 Node n = parent.getCurrentLocation();
aoqi@0 136 if( n instanceof Element ) {
aoqi@0 137 Element e = (Element)n;
aoqi@0 138 if( inStart )
aoqi@0 139 return forest.locatorTable.getStartLocation( e );
aoqi@0 140 else
aoqi@0 141 return forest.locatorTable.getEndLocation( e );
aoqi@0 142 }
aoqi@0 143 return null;
aoqi@0 144 }
aoqi@0 145
aoqi@0 146 //
aoqi@0 147 //
aoqi@0 148 // Locator methods
aoqi@0 149 //
aoqi@0 150 //
aoqi@0 151 public int getColumnNumber() {
aoqi@0 152 Locator l = findLocator();
aoqi@0 153 if(l!=null) return l.getColumnNumber();
aoqi@0 154 return -1;
aoqi@0 155 }
aoqi@0 156
aoqi@0 157 public int getLineNumber() {
aoqi@0 158 Locator l = findLocator();
aoqi@0 159 if(l!=null) return l.getLineNumber();
aoqi@0 160 return -1;
aoqi@0 161 }
aoqi@0 162
aoqi@0 163 public String getPublicId() {
aoqi@0 164 Locator l = findLocator();
aoqi@0 165 if(l!=null) return l.getPublicId();
aoqi@0 166 return null;
aoqi@0 167 }
aoqi@0 168
aoqi@0 169 public String getSystemId() {
aoqi@0 170 Locator l = findLocator();
aoqi@0 171 if(l!=null) return l.getSystemId();
aoqi@0 172 return null;
aoqi@0 173 }
aoqi@0 174
aoqi@0 175 }
aoqi@0 176 }

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