package org.directmemory.supervisor;
import java.util.Date;
import org.directmemory.CacheStore;
import org.javasimon.SimonManager;
import org.javasimon.Split;
import org.javasimon.Stopwatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TimedSupervisor implements Supervisor {
private static Logger logger=LoggerFactory.getLogger(TimedSupervisor.class);
public long batchInterval = 0;
Date lastCheck = new Date();
private abstract class ThreadUsingCache extends Thread {
public ThreadUsingCache(CacheStore cache) {
super();
this.cache = cache;
}
public CacheStore cache;
}
public TimedSupervisor (long batchInterval) {
this.batchInterval = batchInterval;
}
/* (non-Javadoc)
* @see org.directmemory.supervisor.Supervisor#checkLimits(org.directmemory.CacheStore)
*/
public void disposeOverflow(CacheStore cache) {
Stopwatch stopWatch = SimonManager.getStopwatch("supervisor.timed.checkLimits");
Split split = stopWatch.start();
long passed = new Date().getTime() - lastCheck.getTime();
if (passed >= batchInterval) {
lastCheck = new Date();
new ThreadUsingCache(cache) {
public void run() {
logger.debug("checking memory limits");
cache.disposeHeapOverflow();
cache.disposeOffHeapOverflow();
logger.debug("checking expired entries");
cache.disposeExpired();
}
}.start();
}
split.stop();
}
}