TaskAction


1   /*
2    * Copyright  1999-2004 The Apache Software Foundation
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   *
16   */
17  
18  /* $Id: TaskAction.java 42598 2004-03-01 16:18:28Z gregor $  */
19  
20  package org.apache.lenya.cms.cocoon.acting;
21  
22  import java.util.HashMap  ;
23  import java.util.Map  ;
24  
25  import org.apache.avalon.framework.parameters.Parameters;
26  import org.apache.cocoon.acting.AbstractAction;
27  import org.apache.cocoon.environment.ObjectModelHelper;
28  import org.apache.cocoon.environment.Redirector;
29  import org.apache.cocoon.environment.Request;
30  import org.apache.cocoon.environment.Session;
31  import org.apache.cocoon.environment.SourceResolver;
32  import org.apache.lenya.cms.cocoon.task.CocoonTaskWrapper;
33  import org.apache.lenya.cms.task.TaskWrapper;
34  
35  /**
36   * An action that executes a task.
37   */
38  public class TaskAction extends AbstractAction {
39      
40      /**
41       * DOCUMENT ME!
42       *
43       * @param redirector DOCUMENT ME!
44       * @param sourceResolver DOCUMENT ME!
45       * @param objectModel DOCUMENT ME!
46       * @param str DOCUMENT ME!
47       * @param parameters DOCUMENT ME!
48       *
49       * @return DOCUMENT ME!
50       *
51       * @throws java.lang.Exception DOCUMENT ME!
52       */
53      public java.util.Map   act(
54          Redirector redirector,
55          SourceResolver sourceResolver,
56          Map   objectModel,
57          String   str,
58          Parameters parameters)
59          throws java.lang.Exception   {
60  
61          TaskWrapper wrapper = new CocoonTaskWrapper(objectModel, parameters);
62          wrapper.execute();
63  
64          Request request = ObjectModelHelper.getRequest(objectModel);
65  
66          //------------------------------------------------------------
67          // get session
68          //------------------------------------------------------------
69          Session session = request.getSession(true);
70  
71          if (session == null) {
72              getLogger().error("No session object");
73  
74              return null;
75          }
76  
77          //------------------------------------------------------------
78          // Return referer
79          //------------------------------------------------------------
80          String   parent_uri =
81              (String  ) session.getAttribute(
82                  "org.apache.lenya.cms.cocoon.acting.TaskAction.parent_uri");
83          HashMap   actionMap = new HashMap  ();
84          actionMap.put("parent_uri", parent_uri);
85          session.removeAttribute("org.apache.lenya.cms.cocoon.acting.TaskAction.parent_uri");
86  
87          return actionMap;
88      }
89  }
90
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