HttpUploadRequest


1   /* ***** BEGIN LICENSE BLOCK *****
2    * Version: MPL 1.1
3    * The contents of this file are subject to the Mozilla Public License Version
4    * 1.1 (the "License"); you may not use this file except in compliance with
5    * the License. You may obtain a copy of the License at
6    * http://www.mozilla.org/MPL/
7    * 
8    * Software distributed under the License is distributed on an "AS IS" basis,
9    * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10   * for the specific language governing rights and limitations under the
11   * License.
12   * 
13   * The Original Code is Riot.
14   * 
15   * The Initial Developer of the Original Code is
16   * Neteye GmbH.
17   * Portions created by the Initial Developer are Copyright (C) 2006
18   * the Initial Developer. All Rights Reserved.
19   * 
20   * Contributor(s):
21   *   Felix Gnass [fgnass at neteye dot de]
22   * 
23   * ***** END LICENSE BLOCK ***** */
24  package org.riotfamily.forms.fileupload;
25  
26  import java.io.IOException  ;
27  
28  import javax.servlet.ServletInputStream  ;
29  import javax.servlet.http.HttpServletRequest  ;
30  import javax.servlet.http.HttpServletRequestWrapper  ;
31  
32  /**
33   * HttpServletRequestWrapper that returns a 
34   * {@link org.riotfamily.forms.fileupload.CountingServletInputStream CountingInputStream}.
35   */
36  public class HttpUploadRequest extends HttpServletRequestWrapper   {
37      
38      private ServletInputStream   wrappedStream;
39      
40      private CountingServletInputStream countingInputStream;
41      
42      public HttpUploadRequest(HttpServletRequest   request) {
43          super(request);
44          this.countingInputStream = new CountingServletInputStream();
45      }
46          
47      public CountingServletInputStream getCountingInputStream() {
48          return countingInputStream;
49      }
50      
51      public ServletInputStream   getInputStream() throws IOException   {
52          if (wrappedStream == null) {
53              wrappedStream = super.getInputStream();
54              countingInputStream.setSourceStream(wrappedStream);
55          }
56          return countingInputStream;
57      }
58              
59  }
60
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