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Java > Open Source Codes > org > apache > taglibs > standard > examples > util > IOBean


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.standard.examples.util;
18
19 import java.io.*;
20 import javax.servlet.jsp.JspException JavaDoc;
21
22 /**
23  * <p>String repository for Reader/Writer.
24  *
25  * @author Pierre Delisle
26  * @version $Revision: 1.3 $ $Date: 2004/02/28 01:01:41 $
27  */
28 public class IOBean {
29     StringWriter stringWriter = null;
30     String JavaDoc content = null;
31
32     public Reader getReader() throws JspException JavaDoc {
33     //p("getReader()");
34 if (content == null) {
35         if (stringWriter == null) {
36         throw new JspException JavaDoc(
37             "content must first be added to the bean via the writer");
38         }
39         content = stringWriter.toString();
40     }
41     return new StringReader(content);
42     }
43
44     public Writer getWriter() {
45     //p("getWriter()");
46 content = null;
47     stringWriter = new StringWriter();
48     return stringWriter;
49     }
50
51     public void release() {
52     stringWriter = null;
53     content = null;
54     }
55
56     private void p(String JavaDoc s) {
57     System.out.println("[IOBean] " + s);
58     }
59 }
60
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