XalanDOMTestDocumentBuilderFactory.java revision adc854b798c1cfe3bfd4c27d68d5cee38ca617da 
1/*
2 * Copyright (c) 2001-2003 World Wide Web Consortium,
3 * (Massachusetts Institute of Technology, Institut National de
4 * Recherche en Informatique et en Automatique, Keio University). All
5 * Rights Reserved. This program is distributed under the W3C's Software
6 * Intellectual Property License. This program is distributed in the
7 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
8 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
9 * PURPOSE.
10 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
11 */
12
13/*
14  $Log: XalanDOMTestDocumentBuilderFactory.java,v $
15  Revision 1.2  2004/03/11 01:44:21  dom-ts-4
16  Checkstyle fixes (bug 592)
17
18  Revision 1.1  2003/04/24 05:02:05  dom-ts-4
19  Xalan-J support for L3 XPath
20  http://www.w3.org/Bugs/Public/show_bug.cgi?id=191
21
22  Revision 1.1  2002/02/03 07:47:51  dom-ts-4
23  More missing files
24
25 */
26
27package org.w3c.domts;
28
29import java.lang.reflect.Constructor;
30
31import javax.xml.parsers.DocumentBuilderFactory;
32
33import org.w3c.dom.Document;
34
35/**
36 *
37 *   This class uses Xalan-J to add XPath support
38 *       to the current JAXP DOM implementation
39 */
40public class XalanDOMTestDocumentBuilderFactory
41    extends JAXPDOMTestDocumentBuilderFactory {
42
43  /**
44   * Creates a JAXP implementation of DOMTestDocumentBuilderFactory.
45   * @param factory null for default JAXP provider.  If not null,
46   * factory will be mutated in constructor and should be released
47   * by calling code upon return.
48   * @param settings array of settings, may be null.
49   */
50  public XalanDOMTestDocumentBuilderFactory(
51      DocumentBuilderFactory baseFactory,
52      DocumentBuilderSetting[] settings) throws DOMTestIncompatibleException {
53    super(baseFactory, settings);
54  }
55
56  protected DOMTestDocumentBuilderFactory createInstance(DocumentBuilderFactory
57      newFactory,
58      DocumentBuilderSetting[] mergedSettings) throws
59      DOMTestIncompatibleException {
60    return new XalanDOMTestDocumentBuilderFactory(newFactory, mergedSettings);
61  }
62
63  /**
64   *  Creates XPath evaluator
65   *  @param doc DOM document, may not be null
66   */
67  public Object createXPathEvaluator(Document doc) {
68    try {
69      Class xpathClass = Class.forName(
70          "org.apache.xpath.domapi.XPathEvaluatorImpl");
71      Constructor constructor = xpathClass.getConstructor(new Class[] {Document.class});
72      return constructor.newInstance(new Object[] {doc});
73    }
74    catch (Exception ex) {
75    }
76    return doc;
77  }
78
79}
80