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.workflow.action;
24  
25  import com.liferay.portal.kernel.util.Constants;
26  import com.liferay.portal.kernel.util.ParamUtil;
27  import com.liferay.portal.security.auth.PrincipalException;
28  import com.liferay.portal.struts.PortletAction;
29  import com.liferay.portlet.workflow.service.WorkflowTaskServiceUtil;
30  import com.liferay.util.servlet.SessionErrors;
31  
32  import java.util.Map;
33  
34  import javax.portlet.ActionRequest;
35  import javax.portlet.ActionResponse;
36  import javax.portlet.PortletConfig;
37  import javax.portlet.RenderRequest;
38  import javax.portlet.RenderResponse;
39  
40  import org.apache.struts.action.ActionForm;
41  import org.apache.struts.action.ActionForward;
42  import org.apache.struts.action.ActionMapping;
43  
44  /**
45   * <a href="EditTaskAction.java.html"><b><i>View Source</i></b></a>
46   *
47   * @author Brian Wing Shun Chan
48   *
49   */
50  public class EditTaskAction extends PortletAction {
51  
52      public void processAction(
53              ActionMapping mapping, ActionForm form, PortletConfig config,
54              ActionRequest req, ActionResponse res)
55          throws Exception {
56  
57          String cmd = ParamUtil.getString(req, "taskCmd");
58  
59          try {
60              if (cmd.equals(Constants.UPDATE)) {
61                  Map errors = updateTask(req);
62  
63                  if (errors.size() > 0) {
64                      SessionErrors.add(
65                          req, EditTaskAction.class.getName(), errors);
66  
67                      setForward(req, "portlet.workflow.edit_task");
68  
69                      return;
70                  }
71              }
72  
73              sendRedirect(req, res);
74          }
75          catch (Exception e) {
76              if (e instanceof PrincipalException) {
77                  SessionErrors.add(req, e.getClass().getName());
78  
79                  setForward(req, "portlet.workflow.error");
80              }
81              else {
82                  throw e;
83              }
84          }
85      }
86  
87      public ActionForward render(
88              ActionMapping mapping, ActionForm form, PortletConfig config,
89              RenderRequest req, RenderResponse res)
90          throws Exception {
91  
92          return mapping.findForward(
93              getForward(req, "portlet.workflow.edit_task"));
94      }
95  
96      protected Map updateTask(ActionRequest req) throws Exception {
97          long taskId = ParamUtil.getLong(req, "taskId");
98  
99          String transition = ParamUtil.getString(req, "taskTransition");
100 
101         return WorkflowTaskServiceUtil.updateTask(
102             taskId, transition, req.getParameterMap());
103     }
104 
105 }