/*
*
* 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.qpid.management.servlet;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import org.apache.qpid.management.Messages;
import org.apache.qpid.management.Names;
import org.apache.qpid.management.domain.services.QMan;
import org.apache.qpid.management.domain.services.StartupFailureException;
import org.apache.qpid.transport.util.Logger;
/**
* QMan JMX lifecycle manager.
* Provides lifecycle management of QMan JMX core including startup and shutdown.
*
* @author Andrea Gazzarini
*/
public class QManLifeCycleManager implements ServletContextListener
{
private final static Logger LOGGER = Logger.get(QManLifeCycleManager.class);
/**
* Starts QMan JMX Core.
*
* @param event the application context event.
*/
public void contextInitialized(ServletContextEvent event)
{
try
{
QMan qman = new QMan();
qman.start();
event.getServletContext().setAttribute(
Names.APPLICATION_NAME,
qman);
} catch (StartupFailureException exception)
{
LOGGER.error(
exception,
Messages.QMAN_100030_JMX_CORE_STARTUP_FAILURE);
}
}
/**
* Sutdown QMan JMX Core.
*
* @param event the application context event.
*/
public void contextDestroyed(ServletContextEvent event)
{
ServletContext context = event.getServletContext();
QMan qman = (QMan) context.getAttribute(Names.APPLICATION_NAME);
qman.stop();
context.removeAttribute(Names.APPLICATION_NAME);
}
}