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.wiki.action;
24  
25  import com.liferay.portal.kernel.servlet.SessionErrors;
26  import com.liferay.portal.kernel.util.ParamUtil;
27  import com.liferay.portal.kernel.util.Validator;
28  import com.liferay.portal.security.auth.PrincipalException;
29  import com.liferay.portal.struts.PortletAction;
30  import com.liferay.portal.util.WebKeys;
31  import com.liferay.portlet.wiki.NoSuchNodeException;
32  import com.liferay.portlet.wiki.NoSuchPageException;
33  import com.liferay.portlet.wiki.model.WikiNode;
34  
35  import javax.portlet.PortletConfig;
36  import javax.portlet.RenderRequest;
37  import javax.portlet.RenderResponse;
38  
39  import org.apache.struts.action.ActionForm;
40  import org.apache.struts.action.ActionForward;
41  import org.apache.struts.action.ActionMapping;
42  
43  /**
44   * <a href="ViewPageAction.java.html"><b><i>View Source</i></b></a>
45   *
46   * @author Brian Wing Shun Chan
47   * @author Jorge Ferrer
48   *
49   */
50  public class ViewPageAction extends PortletAction {
51  
52      public ActionForward render(
53              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
54              RenderRequest renderRequest, RenderResponse renderResponse)
55          throws Exception {
56  
57          String tag = ParamUtil.getString(renderRequest, "tag");
58  
59          if (Validator.isNotNull(tag)) {
60              return ViewNodeAction.viewNode(
61                  mapping, renderRequest, "portlet.wiki.view_node");
62          }
63  
64          try {
65              WikiNode node = ActionUtil.getNode(renderRequest);
66  
67              if (node == null) {
68                  ActionUtil.getFirstVisibleNode(renderRequest);
69              }
70  
71              ActionUtil.getPage(renderRequest);
72          }
73          catch (Exception e) {
74              if (e instanceof NoSuchNodeException ||
75                  e instanceof NoSuchPageException ||
76                  e instanceof PrincipalException) {
77  
78                  SessionErrors.add(renderRequest, e.getClass().getName());
79  
80                  return mapping.findForward("portlet.wiki.error");
81              }
82              else {
83                  throw e;
84              }
85          }
86  
87          return mapping.findForward(
88              getForward(renderRequest, "portlet.wiki.view_page"));
89      }
90  
91      protected void getNode(RenderRequest renderRequest) throws Exception {
92          ActionUtil.getNode(renderRequest);
93  
94          WikiNode node = (WikiNode)renderRequest.getAttribute(WebKeys.WIKI_NODE);
95  
96          if (node != null) {
97              return;
98          }
99  
100         ActionUtil.getFirstVisibleNode(renderRequest);
101     }
102 
103     protected boolean isCheckMethodOnProcessAction() {
104         return false;
105     }
106 
107 }