1   /**
2    * Copyright (c) 2000-2010 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   *
12   *
13   */
14  
15  package com.liferay.portal.upload;
16  
17  import java.io.IOException;
18  
19  import javax.servlet.ServletInputStream;
20  import javax.servlet.http.HttpServletRequest;
21  import javax.servlet.http.HttpServletRequestWrapper;
22  
23  /**
24   * <a href="LiferayServletRequest.java.html"><b><i>View Source</i></b></a>
25   *
26   * @author Brian Myunghun Kim
27   * @author Brian Wing Shun Chan
28   */
29  public class LiferayServletRequest extends HttpServletRequestWrapper {
30  
31      public LiferayServletRequest(HttpServletRequest request) {
32          super(request);
33  
34          _request = request;
35      }
36  
37      public ServletInputStream getInputStream() throws IOException {
38          if (_lis == null) {
39              _lis = new LiferayInputStream(_request);
40  
41              return _lis;
42          }
43          else {
44  
45              // Return the cached input stream the second time the user requests
46              // the input stream, otherwise, it will return an empty input stream
47              // because it has already been parsed
48  
49              return _lis.getCachedInputStream();
50          }
51      }
52  
53      private HttpServletRequest _request;
54      private LiferayInputStream _lis = null;
55  
56  }