/*
* $Id: ClearSessionInterceptor.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.struts2.interceptor;
import java.util.Map;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
import com.opensymphony.xwork2.util.logging.Logger;
import com.opensymphony.xwork2.util.logging.LoggerFactory;
/**
* <!-- START SNIPPET: description -->
*
* This interceptor clears the HttpSession.
* <p/>
*
* <!-- END SNIPPET: description -->
*
* <p/> <u>Interceptor parameters:</u>
*
*
* <!-- START SNIPPET: extending -->
*
* <ul>
* <li>none</li>
* </ul>
*
* <!-- END SNIPPET: extending -->
*
*
* <!-- START SNIPPET: parameters -->
*
* <ul>
*
* <li>None</li>
*
* </ul>
*
* <!-- END SNIPPET: parameters -->
*
* <b>Example:</b>
*
* <pre>
* <!-- START SNIPPET: example -->
*
* <action name="exampleAction" class="com.examples.ExampleAction">
* <interceptor-ref name="clearSession"/>
* <interceptor-ref name="defaultStack"/>
* <result name="success">example.jsp</result>
* </action>
*
* <!-- END SNIPPET: example -->
* </pre>
*/
public class ClearSessionInterceptor extends AbstractInterceptor {
private static final long serialVersionUID = -2102199238428329238L;
private static final Logger LOG = LoggerFactory.getLogger(ClearSessionInterceptor.class);
/* (non-Javadoc)
* @see com.opensymphony.xwork2.interceptor.Interceptor#intercept(com.opensymphony.xwork2.ActionInvocation)
*/
public String intercept(ActionInvocation invocation) throws Exception {
LOG.debug("Clearing HttpSession");
ActionContext ac = invocation.getInvocationContext();
Map session = ac.getSession();
if (null != session) {
session.clear();
}
return invocation.invoke();
}
}
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