1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions 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.portal.upload;
24  
25  import com.liferay.portal.kernel.util.ProgressTracker;
26  import com.liferay.portal.kernel.util.Validator;
27  
28  import java.util.List;
29  import java.util.Map;
30  
31  import javax.servlet.http.HttpServletRequest;
32  import javax.servlet.http.HttpSession;
33  
34  import org.apache.commons.fileupload.FileItem;
35  import org.apache.commons.fileupload.FileItemFactory;
36  import org.apache.commons.fileupload.FileUploadException;
37  import org.apache.commons.fileupload.servlet.ServletFileUpload;
38  
39  /**
40   * <a href="LiferayFileUpload.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Myunghun Kim
43   * @author Brian Wing Shun Chan
44   *
45   */
46  public class LiferayFileUpload extends ServletFileUpload {
47  
48      public static final String FILE_NAME =
49          LiferayFileUpload.class.getName() + "_FILE_NAME";
50  
51      public static final String PERCENT = ProgressTracker.PERCENT;
52  
53      public LiferayFileUpload(
54          FileItemFactory fileItemFactory, HttpServletRequest request) {
55  
56          super(fileItemFactory);
57  
58          _session = request.getSession();
59      }
60  
61      public List<LiferayFileItem> parseRequest(HttpServletRequest request)
62          throws FileUploadException {
63  
64          _session.removeAttribute(LiferayFileUpload.FILE_NAME);
65          _session.removeAttribute(LiferayFileUpload.PERCENT);
66  
67          return super.parseRequest(request);
68      }
69  
70      /**
71       * @deprecated
72       */
73      protected FileItem createItem(Map headers, boolean formField)
74          throws FileUploadException {
75  
76          LiferayFileItem item = (LiferayFileItem)super.createItem(
77              headers, formField);
78  
79          String fileName = item.getFileName();
80  
81          if (Validator.isNotNull(fileName)) {
82              _session.setAttribute(LiferayFileUpload.FILE_NAME, fileName);
83          }
84  
85          return item;
86      }
87  
88      private HttpSession _session;
89  
90  }