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// ========================================================================
// $Id: WebApplicationContextMBean.java,v 1.11 2005/08/13 00:01:27 gregwilkins Exp $
// Copyright 1999-2004 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// 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.browsermob.proxy.jetty.jetty.servlet.jmx;
import org.apache.commons.logging.Log;
import org.browsermob.proxy.jetty.jetty.servlet.WebApplicationContext;
import org.browsermob.proxy.jetty.log.LogFactory;
import org.browsermob.proxy.jetty.util.LifeCycleEvent;
import org.browsermob.proxy.jetty.util.LifeCycleListener;
import org.browsermob.proxy.jetty.util.LogSupport;
import javax.management.MBeanException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/* ------------------------------------------------------------ */
/** Web Application MBean.
* Note that while Web Applications are HttpContexts, the MBean is
* not derived from HttpContextMBean as they are managed differently.
*
* @version $Revision: 1.11 $
* @author Greg Wilkins (gregw)
*/
public class WebApplicationContextMBean extends ServletHttpContextMBean
{
private static final Log log = LogFactory.getLog(WebApplicationContextMBean.class);
private WebApplicationContext _webappContext;
private Map _configurations = new HashMap();
/* ------------------------------------------------------------ */
/** Constructor.
* @exception MBeanException
*/
public WebApplicationContextMBean()
throws MBeanException
{}
/* ------------------------------------------------------------ */
protected void defineManagedResource()
{
super.defineManagedResource();
defineAttribute("displayName",false);
defineAttribute("defaultsDescriptor",true);
defineAttribute("WAR",true);
defineAttribute("extractWAR",true);
_webappContext=(WebApplicationContext)getManagedResource();
_webappContext.addEventListener(new LifeCycleListener()
{
public void lifeCycleStarting (LifeCycleEvent event)
{}
public void lifeCycleStarted (LifeCycleEvent event)
{
getConfigurations();
}
public void lifeCycleFailure (LifeCycleEvent event)
{}
public void lifeCycleStopping (LifeCycleEvent event)
{}
public void lifeCycleStopped (LifeCycleEvent event)
{
destroyConfigurations();
}
});
}
/** postRegister
* Register mbeans for all of the jsr77 servlet stats
* @see javax.management.MBeanRegistration#postRegister(java.lang.Boolean)
*/
public void postRegister(Boolean ok)
{
super.postRegister(ok);
getConfigurations();
}
/**postDeregister
* Unregister mbeans we created for the Configuration objects.
* @see javax.management.MBeanRegistration#postDeregister()
*/
public void postDeregister ()
{
destroyConfigurations ();
super.postDeregister();
}
/**getConfigurations
* Make mbeans for all of the Configurations applied to the
* WebApplicationContext
* @return
*/
public ObjectName[] getConfigurations ()
{
return getComponentMBeans(_webappContext.getConfigurations(),_configurations);
}
public void destroyConfigurations ()
{
MBeanServer mbeanServer = getMBeanServer();
Iterator itor = _configurations.values().iterator();
while (itor.hasNext())
{
try
{
ObjectName o = (ObjectName)itor.next();
log.debug("Unregistering: "+o);
if (null!=mbeanServer)
mbeanServer.unregisterMBean((ObjectName)o);
}
catch (Exception e)
{
log.warn(LogSupport.EXCEPTION, e);
}
}
_configurations.clear();
}
}