/*
* 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.webbeans.web.failover;
import java.io.Serializable;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpSessionActivationListener;
import javax.servlet.http.HttpSessionEvent;
import org.apache.webbeans.config.WebBeansContext;
import org.apache.webbeans.spi.FailOverService;
/**
* {@link HttpSessionActivationListener} which informs the {@link FailOverService}
* about session activation and passivation.
*
* It must NOT be manually registered because the {@link FailOverService}
* store it as session attribute and therefore it will be executed automatically.
*/
public class FailOverSessionActivationListener implements HttpSessionActivationListener, Serializable
{
public static final String SESSION_ATTRIBUTE_NAME = "o.a.owb.SESSION_ACTIVATION_LISTENER";
private static final long serialVersionUID = -5690043082210295824L;
public void sessionWillPassivate(HttpSessionEvent event)
{
WebBeansContext webBeansContext = WebBeansContext.currentInstance();
FailOverService failOverService = webBeansContext.getService(FailOverService.class);
if (failOverService != null && failOverService.isSupportPassivation())
{
HttpSession session = event.getSession();
failOverService.sessionWillPassivate(session);
}
}
public void sessionDidActivate(HttpSessionEvent event)
{
WebBeansContext webBeansContext = WebBeansContext.currentInstance();
FailOverService failOverService = webBeansContext.getService(FailOverService.class);
if (failOverService != null && (failOverService.isSupportFailOver() || failOverService.isSupportPassivation()))
{
HttpSession session = event.getSession();
failOverService.sessionDidActivate(session);
}
}
}