/**
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007 Sun Microsystems Inc. All Rights Reserved
*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the License at
* https://opensso.dev.java.net/public/CDDLv1.0.html or
* opensso/legal/CDDLv1.0.txt
* See the License for the specific language governing
* permission and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at opensso/legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* $Id: PeriodicCleanUpMap.java,v 1.3 2009/08/18 21:16:39 ww203982 Exp $
*
*/
package com.sun.identity.common;
import java.util.Map;
import java.util.Set;
/**
* PeriodicCleanUpMap is a general Map and a scheduleable unit. Elements pairs
* will be grouped by using the time they enter the map. PeriodicCleanUpMap can
* be scheduled to Timer or TimerPool. For every run period,
* The map will remove the elements which are timeout.
*/
public class PeriodicCleanUpMap extends PeriodicGroupMap {
/**
* Constructor of PeriodicCleanUpMap.
*
* @param runPeriod Run period in ms
* @param timeoutPeriod timeout period in ms
*/
public PeriodicCleanUpMap(long runPeriod, long timeoutPeriod) {
this(runPeriod, timeoutPeriod, null);
}
/**
* Constructor of PeriodicCleanUpMap.
*
* @param runPeriod Run period in ms
* @param timeoutPeriod timeout period in ms
* @param map The synchronized map to use
*/
public PeriodicCleanUpMap(long runPeriod, long timeoutPeriod, Map map)
throws IllegalArgumentException {
super(null, runPeriod, timeoutPeriod, true, map);
}
/**
* Remove the timed out elements in the map and swap the containers.
*/
public void run() {
synchronized (map) {
synchronized (thisTurn) {
map.keySet().removeAll(thisTurn);
thisTurn.clear();
}
}
// containers swapping
synchronized (nextTurn[containerNeeded - 1]) {
Set tempSet = thisTurn;
for (int i = 0; i < containerNeeded + 1; i++) {
if (i == 0) {
thisTurn = nextTurn[0];
} else {
if (i == containerNeeded) {
nextTurn[containerNeeded - 1] = tempSet;
} else {
nextTurn[i - 1] = nextTurn[i];
}
}
}
}
}
}