01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36: package com.sun.tools.xjc.reader.internalizer;
37:
38: import java.io.IOException;
39:
40: import com.sun.xml.xsom.parser.XMLParser;
41:
42: import org.w3c.dom.Document;
43: import org.xml.sax.ContentHandler;
44: import org.xml.sax.EntityResolver;
45: import org.xml.sax.ErrorHandler;
46: import org.xml.sax.InputSource;
47: import org.xml.sax.SAXException;
48:
49: /**
50: * {@link XMLParser} implementation that
51: * parses XML from a DOM forest instead of parsing it from
52: * its original location.
53: *
54: * @author
55: * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
56: */
57: class DOMForestParser implements XMLParser {
58:
59: /** DOM forest to be "parsed". */
60: private final DOMForest forest;
61:
62: /** Scanner object will do the actual SAX events generation. */
63: private final DOMForestScanner scanner;
64:
65: private final XMLParser fallbackParser;
66:
67: /**
68: * @param fallbackParser
69: * This parser will be used when DOMForestParser needs to parse
70: * documents that are not in the forest.
71: */
72: DOMForestParser(DOMForest forest, XMLParser fallbackParser) {
73: this .forest = forest;
74: this .scanner = new DOMForestScanner(forest);
75: this .fallbackParser = fallbackParser;
76: }
77:
78: public void parse(InputSource source,
79: ContentHandler contentHandler, ErrorHandler errorHandler,
80: EntityResolver entityResolver) throws SAXException,
81: IOException {
82:
83: String systemId = source.getSystemId();
84: Document dom = forest.get(systemId);
85:
86: if (dom == null) {
87: // if no DOM tree is built for it,
88: // let the fall back parser parse the original document.
89: //
90: // for example, XSOM parses datatypes.xsd (XML Schema part 2)
91: // but this will never be built into the forest.
92: fallbackParser.parse(source, contentHandler, errorHandler,
93: entityResolver);
94: return;
95: }
96:
97: scanner.scan(dom, contentHandler);
98: }
99: }
|