1 /*
2 * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/taglibs/beanshell/src/java/org/apache/commons/jelly/tags/beanshell/BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
3 * $Revision: 1.1 $
4 * $Date: 2002/05/21 07:58:55 $
5 *
6 * ====================================================================
7 *
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution, if
26 * any, must include the following acknowlegement:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowlegement may appear in the software itself,
30 * if and wherever such third-party acknowlegements normally appear.
31 *
32 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
33 * Foundation" must not be used to endorse or promote products derived
34 * from this software without prior written permission. For written
35 * permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache"
38 * nor may "Apache" appear in their names without prior written
39 * permission of the Apache Group.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>.
59 *
60 * $Id: BeanShellExpressionFactory.java,v 1.1 2002/05/21 07:58:55 jstrachan Exp $
61 */
62 package org.apache.commons.jelly.tags.validate;
63
64 import junit.framework.AssertionFailedError;
65
66 import org.apache.commons.jelly.XMLOutput;
67
68 import org.xml.sax.ErrorHandler;
69 import org.xml.sax.SAXException;
70 import org.xml.sax.SAXParseException;
71 import org.xml.sax.helpers.AttributesImpl;
72
73 /***
74 * This tag performs an assertion that the tags body contains XML
75 * which matches a givem schema validation. This tag is used with
76 * JellyUnit to implement an assertion.
77 *
78 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
79 * @version $Revision: 1.1 $
80 */
81 public class AssertValidTag extends ValidateTag {
82
83 private StringBuffer buffer = new StringBuffer();
84
85
86 /*
87 public AssertValidTag() {
88 setErrorHandler(
89 new ErrorHandler() {
90 public void error(SAXParseException exception) throws SAXException {
91 outputException(output, "error", exception);
92 }
93
94 public void fatalError(SAXParseException exception) throws SAXException {
95 outputException(output, "fatalError", exception);
96 }
97
98 public void warning(SAXParseException exception) throws SAXException {
99 outputException(output, "warning", exception);
100 }
101 }
102 );
103 }
104 */
105 // Tag interface
106 //-------------------------------------------------------------------------
107 public void doTag(final XMLOutput output) throws Exception {
108 buffer.setLength(0);
109 super.doTag(output);
110 }
111
112 // Implementation methods
113 //-------------------------------------------------------------------------
114
115 /***
116 * Processes whether or not the document is valid.
117 * Derived classes can overload this method to do different things, such
118 * as to throw assertion exceptions etc.
119 */
120 protected void handleValid(boolean valid) throws Exception {
121 super.handleValid(valid);
122
123 if ( ! valid ) {
124 String message = buffer.toString();
125 throw new AssertionFailedError( "The XML is not valid according to the schema: " + message );
126 }
127 }
128
129 /***
130 * Outputs the given validation exception as XML to the output
131 */
132 protected void outputException(XMLOutput output, String name, SAXParseException e) throws SAXException {
133 buffer.append( name );
134 buffer.append( " : line: " );
135 buffer.append( e.getLineNumber() );
136 buffer.append( " column: " );
137 buffer.append( e.getColumnNumber() );
138 buffer.append( " message: " );
139 buffer.append( e.getMessage() );
140 buffer.append( '\n' );
141 }
142
143 }
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