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Java > Open Source Codes > org > apache > taglibs > xtags > xpath > AbstractBodyTag


1 /*
2  * Copyright 1999,2004 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
17 package org.apache.taglibs.xtags.xpath;
18
19 import javax.servlet.ServletRequest JavaDoc;
20 import javax.servlet.jsp.JspException JavaDoc;
21 import javax.servlet.jsp.JspWriter JavaDoc;
22 import javax.servlet.jsp.PageContext JavaDoc;
23 import javax.servlet.jsp.tagext.BodyTagSupport JavaDoc;
24
25 import org.apache.taglibs.xtags.util.JspNestedException;
26
27 /** Abstract base class for BodyTag implementations
28   *
29   * @author James Strachan
30   * @version $Revision: 1.4 $
31   */

32 public class AbstractBodyTag extends BodyTagSupport JavaDoc {
33
34     public AbstractBodyTag() {
35     }
36
37     
38     /** Handles non-JspExceptions thrown in this instance
39       */

40     protected void handleException( Exception JavaDoc e ) throws JspException JavaDoc {
41         if ( e instanceof JspException JavaDoc ) {
42             throw (JspException JavaDoc) e;
43         }
44         else {
45             logError( e );
46             throw new JspNestedException( e );
47         }
48     }
49
50     
51     protected void logInfo(String JavaDoc message) {
52         pageContext.getServletContext().log( "INFO: " + getClass().getName() + " : " + message );
53     }
54     
55     protected void logError(Throwable JavaDoc t) {
56         logError( t.getMessage() );
57         t.printStackTrace();
58     }
59     
60     protected void logError(String JavaDoc message) {
61         pageContext.getServletContext().log( "Error: " + getClass().getName() + " : " + message );
62     }
63 }
64
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