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.wiki.action;
21  
22  import com.liferay.portal.kernel.servlet.SessionErrors;
23  import com.liferay.portal.security.auth.PrincipalException;
24  import com.liferay.portal.struts.PortletAction;
25  import com.liferay.portal.util.WebKeys;
26  import com.liferay.portlet.wiki.NoSuchNodeException;
27  import com.liferay.portlet.wiki.NoSuchPageException;
28  import com.liferay.portlet.wiki.model.WikiNode;
29  
30  import javax.portlet.PortletConfig;
31  import javax.portlet.RenderRequest;
32  import javax.portlet.RenderResponse;
33  
34  import org.apache.struts.action.ActionForm;
35  import org.apache.struts.action.ActionForward;
36  import org.apache.struts.action.ActionMapping;
37  
38  /**
39   * <a href="ViewPageAction.java.html"><b><i>View Source</i></b></a>
40   *
41   * @author Brian Wing Shun Chan
42   * @author Jorge Ferrer
43   *
44   */
45  public class ViewPageAction 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              WikiNode node = ActionUtil.getNode(renderRequest);
54  
55              if (node == null) {
56                  ActionUtil.getFirstVisibleNode(renderRequest);
57              }
58  
59              ActionUtil.getPage(renderRequest);
60          }
61          catch (Exception e) {
62              if (e instanceof NoSuchNodeException ||
63                  e instanceof NoSuchPageException ||
64                  e instanceof PrincipalException) {
65  
66                  SessionErrors.add(renderRequest, e.getClass().getName());
67  
68                  return mapping.findForward("portlet.wiki.error");
69              }
70              else {
71                  throw e;
72              }
73          }
74  
75          return mapping.findForward(
76              getForward(renderRequest, "portlet.wiki.view_page"));
77      }
78  
79      protected void getNode(RenderRequest renderRequest) throws Exception {
80          ActionUtil.getNode(renderRequest);
81  
82          WikiNode node = (WikiNode)renderRequest.getAttribute(WebKeys.WIKI_NODE);
83  
84          if (node != null) {
85              return;
86          }
87  
88          ActionUtil.getFirstVisibleNode(renderRequest);
89      }
90  
91      protected boolean isCheckMethodOnProcessAction() {
92          return false;
93      }
94  
95  }