/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/kernel/trunk/component-manager/src/main/java/org/sakaiproject/util/ContextLoaderListener.java $
* $Id: ContextLoaderListener.java 105077 2012-02-24 22:54:29Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008 Sakai Foundation
*
* Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.util;
import javax.servlet.ServletContextEvent;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.component.cover.ComponentManager;
import org.sakaiproject.component.impl.ContextLoader;
import org.sakaiproject.component.impl.SpringCompMgr;
/**
* <p>
* Sakai's extension to the Spring ContextLoaderListener - use our ContextLoader, and increment / decrement the child count of the ComponentManager on init / destroy.
* </p>
*/
public class ContextLoaderListener extends org.springframework.web.context.ContextLoaderListener
{
private static final Log log = LogFactory.getLog(ContextLoaderListener.class);
/**
* Create the ContextLoader to use. Can be overridden in subclasses.
*
* @return the new ContextLoader
*/
protected org.springframework.web.context.ContextLoader createContextLoader()
{
return new ContextLoader();
}
/**
* Initialize the root web application context.
*/
public void contextInitialized(ServletContextEvent event)
{
super.contextInitialized(event);
// increment the count of children for the component manager
((SpringCompMgr) ComponentManager.getInstance()).addChildAc();
}
/**
* Close the root web application context.
*/
public void contextDestroyed(ServletContextEvent event)
{
super.contextDestroyed(event);
log.info("Destroying Components in "+event.getServletContext().getServletContextName());
// decrement the count of children for the component manager
((SpringCompMgr) ComponentManager.getInstance()).removeChildAc();
}
}