001 package org.apache.myfaces.tobago.webapp;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one or more
005 * contributor license agreements. See the NOTICE file distributed with
006 * this work for additional information regarding copyright ownership.
007 * The ASF licenses this file to You under the Apache License, Version 2.0
008 * (the "License"); you may not use this file except in compliance with
009 * the License. You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019
020 /*
021 * Created 25.10.2004 17:57:53.
022 * $Id: LogoutActionListener.java 578592 2007-09-23 18:51:32Z bommel $
023 */
024
025 import org.apache.commons.logging.Log;
026 import org.apache.commons.logging.LogFactory;
027
028 import javax.faces.FacesException;
029 import javax.faces.context.ExternalContext;
030 import javax.faces.context.FacesContext;
031 import javax.faces.event.AbortProcessingException;
032 import javax.faces.event.ActionEvent;
033 import javax.faces.event.ActionListener;
034 import javax.servlet.http.HttpSession;
035 import java.io.IOException;
036
037 public class LogoutActionListener implements ActionListener {
038
039 private static final Log LOG = LogFactory.getLog(LogoutActionListener.class);
040
041 public void processAction(ActionEvent event) throws AbortProcessingException {
042 FacesContext facesContext = FacesContext.getCurrentInstance();
043 ExternalContext externalContext = facesContext.getExternalContext();
044 Object session = externalContext.getSession(false);
045 if (session != null) {
046 if (session instanceof HttpSession) {
047 ((HttpSession) session).invalidate();
048 }
049 // TODO: PortletRequest ??
050 }
051 String forward = externalContext.getRequestContextPath() + "/";
052 try {
053 externalContext.redirect(forward);
054 } catch (IOException e) {
055 LOG.error("", e);
056 // TODO: may do error handling
057 throw new FacesException("Can't redirect to '" + forward + "'");
058 }
059 facesContext.responseComplete();
060 }
061
062 }