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.portal.upload;
21  
22  import com.liferay.portal.kernel.util.ProgressTracker;
23  import com.liferay.portal.kernel.util.Validator;
24  
25  import java.util.List;
26  import java.util.Map;
27  
28  import javax.servlet.http.HttpServletRequest;
29  import javax.servlet.http.HttpSession;
30  
31  import org.apache.commons.fileupload.FileItem;
32  import org.apache.commons.fileupload.FileItemFactory;
33  import org.apache.commons.fileupload.FileUploadException;
34  import org.apache.commons.fileupload.servlet.ServletFileUpload;
35  
36  /**
37   * <a href="LiferayFileUpload.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Brian Myunghun Kim
40   * @author Brian Wing Shun Chan
41   *
42   */
43  public class LiferayFileUpload extends ServletFileUpload {
44  
45      public static final String FILE_NAME =
46          LiferayFileUpload.class.getName() + "_FILE_NAME";
47  
48      public static final String PERCENT = ProgressTracker.PERCENT;
49  
50      public LiferayFileUpload(
51          FileItemFactory fileItemFactory, HttpServletRequest request) {
52  
53          super(fileItemFactory);
54  
55          _session = request.getSession();
56      }
57  
58      public List<LiferayFileItem> parseRequest(HttpServletRequest request)
59          throws FileUploadException {
60  
61          _session.removeAttribute(LiferayFileUpload.FILE_NAME);
62          _session.removeAttribute(LiferayFileUpload.PERCENT);
63  
64          return super.parseRequest(request);
65      }
66  
67      /**
68       * @deprecated
69       */
70      protected FileItem createItem(Map headers, boolean formField)
71          throws FileUploadException {
72  
73          LiferayFileItem item = (LiferayFileItem)super.createItem(
74              headers, formField);
75  
76          String fileName = item.getFileName();
77  
78          if (Validator.isNotNull(fileName)) {
79              _session.setAttribute(LiferayFileUpload.FILE_NAME, fileName);
80          }
81  
82          return item;
83      }
84  
85      private HttpSession _session;
86  
87  }