Source code: org/apache/myfaces/application/ActionListenerImpl.java
1 /*
2 * Copyright 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 package org.apache.myfaces.application;
17
18 import javax.faces.FacesException;
19 import javax.faces.application.Application;
20 import javax.faces.application.NavigationHandler;
21 import javax.faces.component.ActionSource;
22 import javax.faces.context.FacesContext;
23 import javax.faces.el.EvaluationException;
24 import javax.faces.el.MethodBinding;
25 import javax.faces.event.AbortProcessingException;
26 import javax.faces.event.ActionEvent;
27 import javax.faces.event.ActionListener;
28
29 import org.apache.commons.logging.Log;
30 import org.apache.commons.logging.LogFactory;
31
32
33 /**
34 * @author Manfred Geiler (latest modification by $Author: mbr $)
35 * @author Anton Koinov
36 * @version $Revision: 231425 $ $Date: 2005-08-11 07:49:45 -0400 (Thu, 11 Aug 2005) $
37 */
38 public class ActionListenerImpl
39 implements ActionListener
40 {
41 private static final Log log = LogFactory.getLog(ActionListenerImpl.class);
42
43 public void processAction(ActionEvent actionEvent) throws AbortProcessingException
44 {
45 FacesContext facesContext = FacesContext.getCurrentInstance();
46 Application application = facesContext.getApplication();
47
48 ActionSource actionSource = (ActionSource)actionEvent.getComponent();
49 MethodBinding methodBinding = actionSource.getAction();
50
51 String fromAction;
52 String outcome;
53 if (methodBinding == null)
54 {
55 fromAction = null;
56 outcome = null;
57 }
58 else
59 {
60 fromAction = methodBinding.getExpressionString();
61 try
62 {
63 outcome = (String) methodBinding.invoke(facesContext, null);
64 }
65 catch (EvaluationException e)
66 {
67 Throwable cause = e.getCause();
68 if (cause != null && cause instanceof AbortProcessingException)
69 {
70 throw (AbortProcessingException)cause;
71 }
72 else
73 {
74 throw new FacesException("Error calling action method of component with id " + actionEvent.getComponent().getClientId(facesContext), e);
75 }
76 }
77 catch (RuntimeException e)
78 {
79 throw new FacesException("Error calling action method of component with id " + actionEvent.getComponent().getClientId(facesContext), e);
80 }
81 }
82
83 NavigationHandler navigationHandler = application.getNavigationHandler();
84 navigationHandler.handleNavigation(facesContext,
85 fromAction,
86 outcome);
87 //Render Response if needed
88 facesContext.renderResponse();
89
90 }
91 }