QueueTimeRunMetricsWrapper.java

package net.jxta.impl.util.threads;

import java.util.concurrent.Callable;
import java.util.concurrent.ScheduledExecutorService;
import java.util.logging.Level;

import net.jxta.logging.Logging;

public class QueueTimeRunMetricsWrapper<T> extends RunMetricsWrapper<T> {

	private long scheduleTime;
	
	public QueueTimeRunMetricsWrapper(ScheduledExecutorService longTaskMonitor, Callable<T> wrapped) {
		super(longTaskMonitor, wrapped);
        this.scheduleTime = System.currentTimeMillis();
	}
	
	public QueueTimeRunMetricsWrapper(ScheduledExecutorService longTaskMonitor, Runnable wrapped) {
		super(longTaskMonitor, wrapped);
		this.scheduleTime = System.currentTimeMillis();
	}
	
	@Override
	public T call() throws Exception {
		long queuedTime = System.currentTimeMillis() - scheduleTime;
		
		if(queuedTime > 2000 && Logging.SHOW_WARNING && SharedThreadPoolExecutor.LOG.isLoggable(Level.WARNING)) {
            SharedThreadPoolExecutor.LOG.log(Level.WARNING, "task of type [{0}] queued for {1}ms!", new Object[] { getWrappedType(), queuedTime });
        }
		
		return super.call();
	}
}