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.webdav.methods;
16  
17  import com.liferay.portal.webdav.Resource;
18  import com.liferay.portal.webdav.WebDAVException;
19  import com.liferay.portal.webdav.WebDAVRequest;
20  import com.liferay.portal.webdav.WebDAVStorage;
21  
22  import javax.servlet.http.HttpServletResponse;
23  
24  /**
25   * <a href="HeadMethodImpl.java.html"><b><i>View Source</i></b></a>
26   *
27   * @author Brian Wing Shun Chan
28   * @author Alexander Chow
29   */
30  public class HeadMethodImpl implements Method {
31  
32      public int process(WebDAVRequest webDavRequest) throws WebDAVException {
33          try {
34              WebDAVStorage storage = webDavRequest.getWebDAVStorage();
35              HttpServletResponse response =
36                  webDavRequest.getHttpServletResponse();
37  
38              Resource resource = storage.getResource(webDavRequest);
39  
40              int status = HttpServletResponse.SC_NOT_FOUND;
41  
42              if (resource == null) {
43                  response.sendError(
44                      HttpServletResponse.SC_NOT_FOUND, webDavRequest.getPath());
45              }
46              else {
47                  if (!resource.isCollection()) {
48                      response.setContentLength(resource.getSize());
49                  }
50  
51                  status = HttpServletResponse.SC_OK;
52              }
53  
54              return status;
55          }
56          catch (Exception e) {
57              throw new WebDAVException(e);
58          }
59      }
60  
61  }