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.ArrayUtil;
27  import com.liferay.portal.kernel.util.ParamUtil;
28  import com.liferay.portal.kernel.util.Validator;
29  import com.liferay.portal.security.auth.PrincipalException;
30  import com.liferay.portal.struts.PortletAction;
31  import com.liferay.portal.util.PortletKeys;
32  import com.liferay.portal.util.PropsValues;
33  import com.liferay.portal.util.WebKeys;
34  import com.liferay.portlet.PortalPreferences;
35  import com.liferay.portlet.PortletPreferencesFactoryUtil;
36  import com.liferay.portlet.messageboards.NoSuchMessageException;
37  import com.liferay.portlet.messageboards.model.MBMessageDisplay;
38  import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
39  
40  import javax.portlet.PortletConfig;
41  import javax.portlet.RenderRequest;
42  import javax.portlet.RenderResponse;
43  
44  import org.apache.struts.action.ActionForm;
45  import org.apache.struts.action.ActionForward;
46  import org.apache.struts.action.ActionMapping;
47  
48  /**
49   * <a href="ViewMessageAction.java.html"><b><i>View Source</i></b></a>
50   *
51   * @author Brian Wing Shun Chan
52   *
53   */
54  public class ViewMessageAction extends PortletAction {
55  
56      public ActionForward render(
57              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
58              RenderRequest renderRequest, RenderResponse renderResponse)
59          throws Exception {
60  
61          try {
62              long messageId = ParamUtil.getLong(renderRequest, "messageId");
63  
64              PortalPreferences preferences =
65                  PortletPreferencesFactoryUtil.getPortalPreferences(
66                      renderRequest);
67  
68              String threadView = ParamUtil.getString(
69                  renderRequest, "threadView");
70  
71              if (Validator.isNotNull(threadView)) {
72                  preferences.setValue(
73                      PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
74              }
75              else {
76                  threadView = preferences.getValue(
77                      PortletKeys.MESSAGE_BOARDS, "thread-view",
78                      PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT);
79              }
80  
81              if (!ArrayUtil.contains(
82                      PropsValues.MESSAGE_BOARDS_THREAD_VIEWS, threadView)) {
83  
84                  threadView = PropsValues.MESSAGE_BOARDS_THREAD_VIEWS_DEFAULT;
85  
86                  preferences.setValue(
87                      PortletKeys.MESSAGE_BOARDS, "thread-view", threadView);
88              }
89  
90              MBMessageDisplay messageDisplay =
91                  MBMessageServiceUtil.getMessageDisplay(messageId, threadView);
92  
93              renderRequest.setAttribute(
94                  WebKeys.MESSAGE_BOARDS_MESSAGE, messageDisplay);
95  
96              return mapping.findForward("portlet.message_boards.view_message");
97          }
98          catch (Exception e) {
99              if (e instanceof NoSuchMessageException ||
100                 e instanceof PrincipalException) {
101 
102                 SessionErrors.add(renderRequest, e.getClass().getName());
103 
104                 return mapping.findForward("portlet.message_boards.error");
105             }
106             else {
107                 throw e;
108             }
109         }
110     }
111 
112 }