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Java > Open Source Codes > org > apache > taglibs > xtags > util > JspHelper


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.util;
18
19 import javax.servlet.jsp.PageContext JavaDoc;
20
21 /** A collection of helper methods for JSP tag implementators
22   *
23   * @author James Strachan
24   */
25
26 public class JspHelper {
27
28     /** Catches wierd Exceptions on platforms such as WebLogic when
29       * you try and lookup an attribute and its not there
30       *
31       * @return the value of the given attribute or null if its not found
32       */
33     public static Object JavaDoc findAttribute(PageContext JavaDoc pageContext, String JavaDoc name) {
34         try {
35             return pageContext.findAttribute( name );
36         }
37         catch (Exception JavaDoc e) {
38             // shouldn't really cause an exception but
39 // some servlet engines do for some wierd reason
40 return null;
41         }
42     }
43 }
44
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