1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.util.servlet.filters;
24  
25  import java.io.IOException;
26  import java.io.OutputStream;
27  
28  import javax.servlet.ServletOutputStream;
29  
30  /**
31   * <a href="CacheResponseStream.java.html"><b><i>View Source</i></b></a>
32   *
33   * @author Alexander Chow
34   */
35  public class CacheResponseStream extends ServletOutputStream {
36  
37      public CacheResponseStream(OutputStream os) {
38          _os = os;
39      }
40  
41      public void close() throws IOException {
42          super.close();
43  
44          _closed = true;
45      }
46  
47      public boolean isClosed() {
48          return _closed;
49      }
50  
51      public void write(int b) throws IOException {
52          _os.write(b);
53      }
54  
55      public void write(byte[] b) throws IOException {
56          _os.write(b);
57      }
58  
59      public void write(byte[] b, int off, int len) throws IOException {
60          _os.write(b, off, len);
61      }
62  
63      private boolean _closed;
64      private OutputStream _os = null;
65  
66  }