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Java > Open Source Codes > org > opencms > xml > CmsXmlValidationErrorHandler


1 /*
2  * File : $Source: /usr/local/cvs/opencms/src/org/opencms/xml/CmsXmlValidationErrorHandler.java,v $
3  * Date : $Date: 2006/03/27 14:52:20 $
4  * Version: $Revision: 1.10 $
5  *
6  * This library is part of OpenCms -
7  * the Open Source Content Mananagement System
8  *
9  * Copyright (c) 2005 Alkacon Software GmbH (http://www.alkacon.com)
10  *
11  * This library is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * This library is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * For further information about Alkacon Software GmbH, please see the
22  * company website: http://www.alkacon.com
23  *
24  * For further information about OpenCms, please see the
25  * project website: http://www.opencms.org
26  *
27  * You should have received a copy of the GNU Lesser General Public
28  * License along with this library; if not, write to the Free Software
29  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30  */
31
32 package org.opencms.xml;
33
34 import org.opencms.util.CmsStringUtil;
35
36 import org.dom4j.DocumentHelper;
37 import org.dom4j.Element;
38 import org.dom4j.util.XMLErrorHandler;
39 import org.xml.sax.SAXParseException JavaDoc;
40
41 /**
42  * Error hander for writing errors found during XML validation to the OpenCms log.<p>
43  *
44  * Exceptions caused by warnings are suppressed (but written to the log if level is set to WARN).<p>
45  *
46  * @version $Revision: 1.10 $
47  *
48  * @since 6.0.0
49  */
50 public class CmsXmlValidationErrorHandler extends XMLErrorHandler {
51
52     /** Stores the warnings that occur during a SAX parse. */
53     private Element m_warnings;
54
55     /**
56      * Constructor from superclass.<p>
57      */
58     public CmsXmlValidationErrorHandler() {
59
60         super();
61         m_warnings = DocumentHelper.createElement("warnings");
62     }
63
64     /**
65      * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException)
66      */
67     public void error(SAXParseException JavaDoc e) {
68
69         String JavaDoc message = e.getMessage();
70         if (CmsStringUtil.isNotEmpty(message)) {
71
72             if (message.startsWith("sch-props-correct.2")) {
73                 // HACK: multiple schema includes cause errors in validation with Xerces 2
74 // the schema nevertheless is usable
75 // redirect this error to be a warning
76 warning(e);
77                 return;
78             }
79         }
80
81         super.error(e);
82     }
83
84     /**
85      * Returns the warnings.<p>
86      *
87      * @return the warnings
88      */
89     public Element getWarnings() {
90
91         return m_warnings;
92     }
93
94     /**
95      * @see org.dom4j.util.XMLErrorHandler#warning(org.xml.sax.SAXParseException)
96      */
97     public void warning(SAXParseException JavaDoc e) {
98
99         Element element = m_warnings.addElement(WARNING_QNAME);
100         addException(element, e);
101     }
102 }
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