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comparison NGSrich_0.5.5/src/org/jdom/adapters/XercesDOMAdapter.java @ 0:89ad0a9cca52 default tip

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author pfrommolt
date Mon, 21 Nov 2011 08:12:19 -0500
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1 /*--
2
3 $Id: XercesDOMAdapter.java,v 1.19 2007/11/10 05:28:59 jhunter Exp $
4
5 Copyright (C) 2000-2007 Jason Hunter & Brett McLaughlin.
6 All rights reserved.
7
8 Redistribution and use in source and binary forms, with or without
9 modification, are permitted provided that the following conditions
10 are met:
11
12 1. Redistributions of source code must retain the above copyright
13 notice, this list of conditions, and the following disclaimer.
14
15 2. Redistributions in binary form must reproduce the above copyright
16 notice, this list of conditions, and the disclaimer that follows
17 these conditions in the documentation and/or other materials
18 provided with the distribution.
19
20 3. The name "JDOM" must not be used to endorse or promote products
21 derived from this software without prior written permission. For
22 written permission, please contact <request_AT_jdom_DOT_org>.
23
24 4. Products derived from this software may not be called "JDOM", nor
25 may "JDOM" appear in their name, without prior written permission
26 from the JDOM Project Management <request_AT_jdom_DOT_org>.
27
28 In addition, we request (but do not require) that you include in the
29 end-user documentation provided with the redistribution and/or in the
30 software itself an acknowledgement equivalent to the following:
31 "This product includes software developed by the
32 JDOM Project (http://www.jdom.org/)."
33 Alternatively, the acknowledgment may be graphical using the logos
34 available at http://www.jdom.org/images/logos.
35
36 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39 DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
40 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 SUCH DAMAGE.
48
49 This software consists of voluntary contributions made by many
50 individuals on behalf of the JDOM Project and was originally
51 created by Jason Hunter <jhunter_AT_jdom_DOT_org> and
52 Brett McLaughlin <brett_AT_jdom_DOT_org>. For more information
53 on the JDOM Project, please see <http://www.jdom.org/>.
54
55 */
56
57 package org.jdom.adapters;
58
59 import java.io.*;
60 import java.lang.reflect.*;
61
62 import org.jdom.*;
63 import org.jdom.input.*;
64 import org.w3c.dom.Document;
65 import org.xml.sax.*;
66
67 /**
68 * An adapter for the Apache Xerces DOM parser.
69 *
70 * @version $Revision: 1.19 $, $Date: 2007/11/10 05:28:59 $
71 * @author Brett McLaughlin
72 * @author Jason Hunter
73 */
74 public class XercesDOMAdapter extends AbstractDOMAdapter {
75
76 private static final String CVS_ID =
77 "@(#) $RCSfile: XercesDOMAdapter.java,v $ $Revision: 1.19 $ $Date: 2007/11/10 05:28:59 $ $Name: jdom_1_1_1 $";
78
79 /**
80 * This creates a new <code>{@link Document}</code> from an
81 * existing <code>InputStream</code> by letting a DOM
82 * parser handle parsing using the supplied stream.
83 *
84 * @param in <code>InputStream</code> to parse.
85 * @param validate <code>boolean</code> to indicate if validation
86 * should occur.
87 * @return <code>Document</code> - instance ready for use.
88 * @throws IOException when I/O error occurs.
89 * @throws JDOMException when errors occur in parsing.
90 */
91 public Document getDocument(InputStream in, boolean validate)
92 throws IOException, JDOMException {
93
94 try {
95 // Load the parser class
96 Class parserClass =
97 Class.forName("org.apache.xerces.parsers.DOMParser");
98 Object parser = parserClass.newInstance();
99
100 // Set validation
101 Method setFeature = parserClass.getMethod(
102 "setFeature",
103 new Class[] {java.lang.String.class, boolean.class});
104 setFeature.invoke(parser,
105 new Object[] {"http://xml.org/sax/features/validation",
106 new Boolean(validate)});
107
108 // Set namespaces true
109 setFeature.invoke(parser,
110 new Object[] {"http://xml.org/sax/features/namespaces",
111 new Boolean(true)});
112
113 // Set the error handler
114 if (validate) {
115 Method setErrorHandler = parserClass.getMethod(
116 "setErrorHandler",
117 new Class[] {ErrorHandler.class});
118 setErrorHandler.invoke(parser,
119 new Object[] {new BuilderErrorHandler()});
120 }
121
122 // Parse the document
123 Method parse = parserClass.getMethod(
124 "parse",
125 new Class[] {org.xml.sax.InputSource.class});
126 parse.invoke(parser, new Object[]{new InputSource(in)});
127
128 // Get the Document object
129 Method getDocument = parserClass.getMethod("getDocument", null);
130 Document doc = (Document)getDocument.invoke(parser, null);
131
132 return doc;
133 } catch (InvocationTargetException e) {
134 Throwable targetException = e.getTargetException();
135 if (targetException instanceof org.xml.sax.SAXParseException) {
136 SAXParseException parseException =
137 (SAXParseException)targetException;
138 throw new JDOMException("Error on line " +
139 parseException.getLineNumber() +
140 " of XML document: " +
141 parseException.getMessage(), e);
142 } else if (targetException instanceof IOException) {
143 IOException ioException = (IOException) targetException;
144 throw ioException;
145 } else {
146 throw new JDOMException(targetException.getMessage(), e);
147 }
148 } catch (Exception e) {
149 throw new JDOMException(e.getClass().getName() + ": " +
150 e.getMessage(), e);
151 }
152 }
153
154 /**
155 * This creates an empty <code>Document</code> object based
156 * on a specific parser implementation.
157 *
158 * @return <code>Document</code> - created DOM Document.
159 * @throws JDOMException when errors occur.
160 */
161 public Document createDocument() throws JDOMException {
162 try {
163 return (Document)Class.forName(
164 "org.apache.xerces.dom.DocumentImpl").newInstance();
165 } catch (Exception e) {
166 throw new JDOMException(e.getClass().getName() + ": " +
167 e.getMessage() + " when creating document", e);
168 }
169 }
170 }