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Java > Open Source Codes > org > apache > commons > jelly > test > impl > DummyTag


1 /*
2  * Copyright 2002,2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.apache.commons.jelly.test.impl;
17
18 import org.apache.commons.jelly.JellyTagException;
19 import org.apache.commons.jelly.TagSupport;
20 import org.apache.commons.jelly.XMLOutput;
21 import org.apache.commons.jelly.util.ClassLoaderUtils;
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24
25 /**
26  * Simple Test Tag
27  *
28  * @author <a HREF="mailto:vinayc@apache.org">Vinay Chandran</a>
29  */
30 public class DummyTag extends TagSupport {
31     /** The Log to which logging calls will be made. */
32     private static final Log log = LogFactory.getLog(DummyTag.class);
33     /** A test class to be loaded by the Tag*/
34     private String JavaDoc m_classToBeLoaded = null;
35
36     /**
37      *
38      * @see org.apache.commons.jelly.Tag#doTag(XMLOutput)
39      * @see org.apache.commons.jelly.tags.core.JellyTag
40      */
41     public void doTag(XMLOutput output) throws JellyTagException {
42         if (log.isDebugEnabled())
43             log.debug("********Executing DummyTag Body*********");
44         if (m_classToBeLoaded != null) {
45             try {
46                 Class JavaDoc clazz = ClassLoaderUtils.loadClass(m_classToBeLoaded, getClass());
47                 if (log.isDebugEnabled())
48                     log.debug("Class[" + m_classToBeLoaded + "] FOUND");
49             }
50             catch (ClassNotFoundException JavaDoc cnfe) {
51                 if (log.isWarnEnabled())
52                     log.warn("Class[" + m_classToBeLoaded + "] NOT FOUND");
53             }
54
55         }
56         invokeBody(output);
57     }
58
59     /**
60      * A Test Variable(Used for testing the TagLibraryClassloader)
61      */
62     public void setLoadClass(String JavaDoc extraClass) {
63         m_classToBeLoaded = extraClass;
64     }
65
66 }
67
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