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Java > Open Source Codes > org > apache > taglibs > string > LengthTag


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 package org.apache.taglibs.string;
17
18 import javax.servlet.jsp.JspException JavaDoc;
19
20 /**
21  * Return the length of the String.
22  *
23  * @author bayard@generationjava.com
24  */
25 public class LengthTag extends StringTagSupport {
26
27     public LengthTag() {
28         super();
29     }
30
31
32     public String JavaDoc changeString(String JavaDoc text) throws JspException JavaDoc {
33         if(text == null) {
34             return "";
35         } else {
36             return String.valueOf(text.length());
37         }
38     }
39
40     public void initAttributes() {
41
42     }
43
44
45 }
46
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