/* $Id$ */
/**
* 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.manifoldcf.connectorcommon.interfaces;
import org.apache.manifoldcf.core.interfaces.*;
import org.apache.manifoldcf.core.system.ManifoldCF;
/** Thread-local IThrottleGroups factory.
*/
public class ThrottleGroupsFactory
{
public static final String _rcsid = "@(#)$Id$";
// name to use in thread context pool of objects
private final static String objectName = "_ThrottleGroups_";
private ThrottleGroupsFactory()
{
}
/** Make a connection throttle handle.
*@param tc is the thread context.
*@return the handle.
*/
public static IThrottleGroups make(IThreadContext tc)
throws ManifoldCFException
{
Object o = tc.get(objectName);
if (o == null || !(o instanceof IThrottleGroups))
{
o = new org.apache.manifoldcf.connectorcommon.throttler.ThrottleGroups(tc);
tc.save(objectName,o);
}
return (IThrottleGroups)o;
}
/** Class that polls throttler */
protected static class ThrottlerPoll implements IPollingHook
{
public ThrottlerPoll()
{
}
@Override
public void doPoll(IThreadContext threadContext)
throws ManifoldCFException
{
IThrottleGroups connectionThrottler = ThrottleGroupsFactory.make(threadContext);
connectionThrottler.poll();
}
}
/** Register the throttle groups ManifoldCF service.
*/
public static void register()
{
ManifoldCF.addShutdownHook(new ThrottlerShutdown());
ManifoldCF.addPollingHook(new ThrottlerPoll());
}
/** Class that cleans up throttler on exit */
protected static class ThrottlerShutdown implements IShutdownHook
{
public ThrottlerShutdown()
{
}
@Override
public void doCleanup(IThreadContext threadContext)
throws ManifoldCFException
{
IThrottleGroups connectionThrottler = ThrottleGroupsFactory.make(threadContext);
connectionThrottler.destroy();
}
/** Finalizer, which is designed to catch class unloading that tomcat 5.5 does.
*/
protected void finalize()
throws Throwable
{
try
{
doCleanup(ThreadContextFactory.make());
}
finally
{
super.finalize();
}
}
}
}