/*
* $Header: /home/cvs/jakarta-struts/src/example/org/apache/struts/webapp/example/LogoffAction.java,v 1.13 2004/03/14 06:23:44 sraeburn Exp $
* $Revision: 1.13 $
* $Date: 2004/03/14 06:23:44 $
*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.struts.webapp.example;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
/**
* Implementation of <strong>Action</strong> that processes a
* user logoff.
*
* @version $Revision: 1.13 $ $Date: 2004/03/14 06:23:44 $
*/
public final class LogoffAction extends Action {
// ----------------------------------------------------- Instance Variables
/**
* The <code>Log</code> instance for this application.
*/
private Log log = LogFactory.getLog("org.apache.struts.webapp.Example");
// --------------------------------------------------------- Public Methods
// See superclass for Javadoc
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
// Extract attributes we will need
HttpSession session = request.getSession();
User user = (User) session.getAttribute(Constants.USER_KEY);
// Process this user logoff
if (user != null) {
if (log.isDebugEnabled()) {
log.debug(
"LogoffAction: User '"
+ user.getUsername()
+ "' logged off in session "
+ session.getId());
}
} else {
if (log.isDebugEnabled()) {
log.debug(
"LogoffActon: User logged off in session " + session.getId());
}
}
session.removeAttribute(Constants.SUBSCRIPTION_KEY);
session.removeAttribute(Constants.USER_KEY);
session.invalidate();
// Forward control to the specified success URI
return (mapping.findForward("success"));
}
}
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