1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.util.servlet.filters;
16  
17  import java.io.IOException;
18  import java.io.OutputStream;
19  
20  import javax.servlet.ServletOutputStream;
21  
22  /**
23   * <a href="CacheResponseStream.java.html"><b><i>View Source</i></b></a>
24   *
25   * @author Alexander Chow
26   */
27  public class CacheResponseStream extends ServletOutputStream {
28  
29      public CacheResponseStream(OutputStream os) {
30          _os = os;
31      }
32  
33      public void close() throws IOException {
34          super.close();
35  
36          _closed = true;
37      }
38  
39      public boolean isClosed() {
40          return _closed;
41      }
42  
43      public void write(int b) throws IOException {
44          _os.write(b);
45      }
46  
47      public void write(byte[] b) throws IOException {
48          _os.write(b);
49      }
50  
51      public void write(byte[] b, int off, int len) throws IOException {
52          _os.write(b, off, len);
53      }
54  
55      private boolean _closed;
56      private OutputStream _os = null;
57  
58  }