ThreadPoolWrap.java

package com.hyrt.cei.util;

import java.util.concurrent.*;

public class ThreadPoolWrap
{

    private ThreadPoolWrap()
    {
        executor = null;
        bq = new ArrayBlockingQueue<Runnable>(50);
        executor = new ThreadPoolExecutor(DEFAULT_COREPOOLSIZE, DEFAULT_MAXIMUM_POOLSIZE, DEFAULT_KEEP_ALIVE_TIME, TimeUnit.SECONDS, bq);
    }

    public static ThreadPoolWrap getThreadPool()
    {
        if(instance == null)
            instance = new ThreadPoolWrap();
        return instance;
    }

    public void executeTask(Runnable runnable)
    {
        executor.execute(runnable);
    }

    public void removeTask(Runnable runnable)
    {
        executor.remove(runnable);
    }

    public void shutdown()
    {
        executor.shutdown();
        instance = null;
    }

    private static final int DEFAULT_COREPOOLSIZE = 2;
    private static final long DEFAULT_KEEP_ALIVE_TIME = 30L;
    private static final int DEFAULT_MAXIMUM_POOLSIZE = 2;
    private static ThreadPoolWrap instance;
    private BlockingQueue<Runnable> bq;
    private ThreadPoolExecutor executor;
}