/*
* Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.jndi.ldap.pool;
/**
* Thread that wakes up periodically and closes expired, unused connections.
*
* @author Rosanna Lee
*/
final public class PoolCleaner extends Thread {
final private Pool[] pools;
final private long period;
/**
* @param period ms to wait between cleaning
* @param pools non-null array of Pools to clean
*/
public PoolCleaner(long period, Pool[] pools) {
super();
this.period = period;
this.pools = pools.clone();
setDaemon(true);
}
public void run() {
long threshold;
while (true) {
synchronized (this) {
// Wait for duration of period ms
try {
wait(period);
} catch (InterruptedException ignore) {
}
// Connections idle since threshold have expired
threshold = System.currentTimeMillis() - period;
for (int i = 0; i < pools.length; i++) {
if (pools[i] != null) {
pools[i].expire(threshold);
}
}
}
}
}
}