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.portlet.messageboards.action;
24  
25  import com.liferay.portal.kernel.servlet.SessionErrors;
26  import com.liferay.portal.kernel.util.ParamUtil;
27  import com.liferay.portal.security.auth.PrincipalException;
28  import com.liferay.portal.struts.PortletAction;
29  import com.liferay.portal.util.WebKeys;
30  import com.liferay.portlet.messageboards.NoSuchMessageException;
31  import com.liferay.portlet.messageboards.model.MBMessageDisplay;
32  import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
33  
34  import javax.portlet.PortletConfig;
35  import javax.portlet.RenderRequest;
36  import javax.portlet.RenderResponse;
37  
38  import org.apache.struts.action.ActionForm;
39  import org.apache.struts.action.ActionForward;
40  import org.apache.struts.action.ActionMapping;
41  
42  /**
43   * <a href="ViewMessageAction.java.html"><b><i>View Source</i></b></a>
44   *
45   * @author Brian Wing Shun Chan
46   *
47   */
48  public class ViewMessageAction extends PortletAction {
49  
50      public ActionForward render(
51              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
52              RenderRequest renderRequest, RenderResponse renderResponse)
53          throws Exception {
54  
55          try {
56              long messageId = ParamUtil.getLong(renderRequest, "messageId");
57  
58              MBMessageDisplay messageDisplay =
59                  MBMessageServiceUtil.getMessageDisplay(messageId);
60  
61              renderRequest.setAttribute(
62                  WebKeys.MESSAGE_BOARDS_MESSAGE, messageDisplay);
63  
64              return mapping.findForward("portlet.message_boards.view_message");
65          }
66          catch (Exception e) {
67              if (e instanceof NoSuchMessageException ||
68                  e instanceof PrincipalException) {
69  
70                  SessionErrors.add(renderRequest, e.getClass().getName());
71  
72                  return mapping.findForward("portlet.message_boards.error");
73              }
74              else {
75                  throw e;
76              }
77          }
78      }
79  
80  }