package com.moon.server.helper;

import com.moon.server.entity.all.StaticData;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.util.TimerTask;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

@SuppressWarnings("ALL")
public class AsyncHelper {
    private final static int OPERATE_DELAY_TIME = 10;

    // private final static AsyncHelper INSTANCE = new AsyncHelper();

    private final static Log log = LogFactory.getLog(AsyncHelper.class);

    private ScheduledExecutorService executor = SpringContextHelper.getBean("scheduledExecutorService");

    public AsyncHelper() {
    }

    public void execute(TimerTask task) {
        executor.schedule(task, OPERATE_DELAY_TIME, TimeUnit.MILLISECONDS);
    }

    public void shutdown() {
        shutdownAndAwaitTermination(executor);
    }

    public static void shutdownAndAwaitTermination(ExecutorService pool) {
        try {
            if (null == pool || pool.isShutdown()) {
                return;
            }

            pool.shutdown();
            if (!pool.awaitTermination(StaticData.I120, TimeUnit.SECONDS)) {
                pool.shutdownNow();
            }
        } catch (InterruptedException ie) {
            pool.shutdownNow();
            Thread.currentThread().interrupt();
        }
    }
}