| SAXReaderFactory.java |
1 /**
2 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23 package com.liferay.portal.util;
24
25 import org.apache.commons.logging.Log;
26 import org.apache.commons.logging.LogFactory;
27
28 import org.dom4j.io.SAXReader;
29
30 /**
31 * <a href="SAXReaderFactory.java.html"><b><i>View Source</i></b></a>
32 *
33 * @author Brian Wing Shun Chan
34 *
35 */
36 public class SAXReaderFactory {
37
38 public static SAXReader getInstance() {
39 return getInstance(true);
40 }
41
42 public static SAXReader getInstance(boolean validate) {
43
44 // Crimson cannot do XSD validation. See the following links:
45 //
46 // http://www.geocities.com/herong_yang/jdk/xsd_validation.html
47 // http://www.burnthacker.com/archives/000086.html
48 // http://www.theserverside.com/news/thread.tss?thread_id=22525
49
50 SAXReader reader = null;
51
52 try {
53 reader = new SAXReader(_SAX_PARSER_IMPL, validate);
54
55 reader.setEntityResolver(new EntityResolver());
56
57 reader.setFeature(_FEATURES_VALIDATION, validate);
58 reader.setFeature(_FEATURES_VALIDATION_SCHEMA, validate);
59 reader.setFeature(
60 _FEATURES_VALIDATION_SCHEMA_FULL_CHECKING, validate);
61 reader.setFeature(_FEATURES_DYNAMIC, validate);
62 }
63 catch (Exception e) {
64 _log.warn("XSD validation is diasabled because " + e.getMessage());
65
66 reader = new SAXReader(validate);
67
68 reader.setEntityResolver(new EntityResolver());
69 }
70
71 return reader;
72 }
73
74 private static final String _SAX_PARSER_IMPL =
75 "org.apache.xerces.parsers.SAXParser";
76
77 private static final String _FEATURES_VALIDATION =
78 "http://xml.org/sax/features/validation";
79
80 private static final String _FEATURES_VALIDATION_SCHEMA =
81 "http://apache.org/xml/features/validation/schema";
82
83 private static final String _FEATURES_VALIDATION_SCHEMA_FULL_CHECKING =
84 "http://apache.org/xml/features/validation/schema-full-checking";
85
86 private static final String _FEATURES_DYNAMIC =
87 "http://apache.org/xml/features/validation/dynamic";
88
89 private static Log _log = LogFactory.getLog(SAXReaderFactory.class);
90
91 }