/* $Id: LockPool.java 988245 2010-08-23 18:39:35Z kwright $ */
/**
* 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.core.lockmanager;
import java.util.*;
import java.io.*;
/** Lock pool class. This is a pool of LockGate objects.
*/
public class LockPool
{
public static final String _rcsid = "@(#)$Id: LockPool.java 988245 2010-08-23 18:39:35Z kwright $";
protected final Map<Object,LockGate> myLocks = new HashMap<Object,LockGate>();
protected final LockObjectFactory factory;
public LockPool(LockObjectFactory factory)
{
this.factory = factory;
}
public synchronized LockGate getObject(Object lockKey)
{
LockGate lg = myLocks.get(lockKey);
if (lg == null)
{
LockObject lo = factory.newLockObject(this,lockKey);
lg = new LockGate(lockKey,lo,this);
myLocks.put(lockKey,lg);
}
return lg;
}
public synchronized void releaseObject(Object lockKey, LockGate lockGate)
{
lockGate.makeInvalid();
myLocks.remove(lockKey);
}
}