1   /**
2    * Copyright (c) 2000-2008 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.wiki.action;
24  
25  import com.liferay.portal.kernel.servlet.SessionErrors;
26  import com.liferay.portal.security.auth.PrincipalException;
27  import com.liferay.portal.struts.PortletAction;
28  import com.liferay.portal.util.WebKeys;
29  import com.liferay.portlet.wiki.NoSuchNodeException;
30  import com.liferay.portlet.wiki.NoSuchPageException;
31  import com.liferay.portlet.wiki.model.WikiNode;
32  
33  import javax.portlet.PortletConfig;
34  import javax.portlet.RenderRequest;
35  import javax.portlet.RenderResponse;
36  
37  import org.apache.struts.action.ActionForm;
38  import org.apache.struts.action.ActionForward;
39  import org.apache.struts.action.ActionMapping;
40  
41  /**
42   * <a href="ViewPageAction.java.html"><b><i>View Source</i></b></a>
43   *
44   * @author Brian Wing Shun Chan
45   * @author Jorge Ferrer
46   *
47   */
48  public class ViewPageAction 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              WikiNode node = ActionUtil.getNode(renderRequest);
57  
58              if (node == null) {
59                  ActionUtil.getFirstVisibleNode(renderRequest);
60              }
61  
62              ActionUtil.getPage(renderRequest);
63          }
64          catch (Exception e) {
65              if (e instanceof NoSuchNodeException ||
66                  e instanceof NoSuchPageException ||
67                  e instanceof PrincipalException) {
68  
69                  SessionErrors.add(renderRequest, e.getClass().getName());
70  
71                  return mapping.findForward("portlet.wiki.error");
72              }
73              else {
74                  throw e;
75              }
76          }
77  
78          return mapping.findForward(
79              getForward(renderRequest, "portlet.wiki.view_page"));
80      }
81  
82      protected void getNode(RenderRequest renderRequest) throws Exception {
83          ActionUtil.getNode(renderRequest);
84  
85          WikiNode node = (WikiNode)renderRequest.getAttribute(WebKeys.WIKI_NODE);
86  
87          if (node != null) {
88              return;
89          }
90  
91          ActionUtil.getFirstVisibleNode(renderRequest);
92      }
93  
94      protected boolean isCheckMethodOnProcessAction() {
95          return false;
96      }
97  
98  }