1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights 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  public class ViewPageAction extends PortletAction {
50  
51      public ActionForward render(
52              ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
53              RenderRequest renderRequest, RenderResponse renderResponse)
54          throws Exception {
55  
56          String tag = ParamUtil.getString(renderRequest, "tag");
57  
58          if (Validator.isNotNull(tag)) {
59              return ViewNodeAction.viewNode(
60                  mapping, renderRequest, "portlet.wiki.view_node");
61          }
62  
63          try {
64              WikiNode node = ActionUtil.getNode(renderRequest);
65  
66              if (node == null) {
67                  ActionUtil.getFirstVisibleNode(renderRequest);
68              }
69  
70              ActionUtil.getPage(renderRequest);
71          }
72          catch (Exception e) {
73              if (e instanceof NoSuchNodeException ||
74                  e instanceof NoSuchPageException ||
75                  e instanceof PrincipalException) {
76  
77                  SessionErrors.add(renderRequest, e.getClass().getName());
78  
79                  return mapping.findForward("portlet.wiki.error");
80              }
81              else {
82                  throw e;
83              }
84          }
85  
86          return mapping.findForward(
87              getForward(renderRequest, "portlet.wiki.view_page"));
88      }
89  
90      protected void getNode(RenderRequest renderRequest) throws Exception {
91          ActionUtil.getNode(renderRequest);
92  
93          WikiNode node = (WikiNode)renderRequest.getAttribute(WebKeys.WIKI_NODE);
94  
95          if (node != null) {
96              return;
97          }
98  
99          ActionUtil.getFirstVisibleNode(renderRequest);
100     }
101 
102     protected boolean isCheckMethodOnProcessAction() {
103         return false;
104     }
105 
106 }