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.portlet.messageboards.action;
21  
22  import com.liferay.portal.kernel.servlet.SessionErrors;
23  import com.liferay.portal.kernel.util.ParamUtil;
24  import com.liferay.portal.security.auth.PrincipalException;
25  import com.liferay.portal.struts.PortletAction;
26  import com.liferay.portal.util.WebKeys;
27  import com.liferay.portlet.messageboards.NoSuchMessageException;
28  import com.liferay.portlet.messageboards.model.MBMessageDisplay;
29  import com.liferay.portlet.messageboards.service.MBMessageServiceUtil;
30  
31  import javax.portlet.PortletConfig;
32  import javax.portlet.RenderRequest;
33  import javax.portlet.RenderResponse;
34  
35  import org.apache.struts.action.ActionForm;
36  import org.apache.struts.action.ActionForward;
37  import org.apache.struts.action.ActionMapping;
38  
39  /**
40   * <a href="ViewMessageAction.java.html"><b><i>View Source</i></b></a>
41   *
42   * @author Brian Wing Shun Chan
43   *
44   */
45  public class ViewMessageAction extends PortletAction {
46  
47      public ActionForward render(
48              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
49              RenderRequest renderRequest, RenderResponse renderResponse)
50          throws Exception {
51  
52          try {
53              long messageId = ParamUtil.getLong(renderRequest, "messageId");
54  
55              MBMessageDisplay messageDisplay =
56                  MBMessageServiceUtil.getMessageDisplay(messageId);
57  
58              renderRequest.setAttribute(
59                  WebKeys.MESSAGE_BOARDS_MESSAGE, messageDisplay);
60  
61              return mapping.findForward("portlet.message_boards.view_message");
62          }
63          catch (Exception e) {
64              if (e instanceof NoSuchMessageException ||
65                  e instanceof PrincipalException) {
66  
67                  SessionErrors.add(renderRequest, e.getClass().getName());
68  
69                  return mapping.findForward("portlet.message_boards.error");
70              }
71              else {
72                  throw e;
73              }
74          }
75      }
76  
77  }