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