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.model.WorkflowInstance;
30  import com.liferay.portlet.workflow.service.WorkflowInstanceServiceUtil;
31  import com.liferay.util.servlet.SessionErrors;
32  
33  import javax.portlet.ActionRequest;
34  import javax.portlet.ActionResponse;
35  import javax.portlet.PortletConfig;
36  
37  import org.apache.struts.action.ActionForm;
38  import org.apache.struts.action.ActionMapping;
39  
40  /**
41   * <a href="EditInstanceAction.java.html"><b><i>View Source</i></b></a>
42   *
43   * @author Brian Wing Shun Chan
44   *
45   */
46  public class EditInstanceAction extends PortletAction {
47  
48      public void processAction(
49              ActionMapping mapping, ActionForm form, PortletConfig config,
50              ActionRequest req, ActionResponse res)
51          throws Exception {
52  
53          String cmd = ParamUtil.getString(req, Constants.CMD);
54  
55          try {
56              if (cmd.equals(Constants.ADD)) {
57                  addInstance(req, res);
58              }
59              else if (cmd.equals(Constants.SIGNAL)) {
60                  signalInstance(req, res);
61              }
62          }
63          catch (Exception e) {
64              if (e instanceof PrincipalException) {
65                  SessionErrors.add(req, e.getClass().getName());
66  
67                  setForward(req, "portlet.workflow.error");
68              }
69              else {
70                  throw e;
71              }
72          }
73      }
74  
75      protected void addInstance(ActionRequest req, ActionResponse res)
76          throws Exception {
77  
78          long definitionId = ParamUtil.getLong(req, "definitionId");
79  
80          WorkflowInstance instance =
81              WorkflowInstanceServiceUtil.addInstance(definitionId);
82  
83          String redirect = ParamUtil.getString(req, "redirect");
84  
85          redirect += "&instanceId=" + instance.getInstanceId();
86  
87          sendRedirect(req, res, redirect);
88      }
89  
90      protected void signalInstance(ActionRequest req, ActionResponse res)
91          throws Exception {
92  
93          long instanceId = ParamUtil.getLong(req, "instanceId");
94          long tokenId = ParamUtil.getLong(req, "tokenId");
95  
96          if (tokenId <= 0) {
97              WorkflowInstanceServiceUtil.signalInstance(instanceId);
98          }
99          else {
100             WorkflowInstanceServiceUtil.signalToken(instanceId, tokenId);
101         }
102 
103         sendRedirect(req, res);
104     }
105 
106 }