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延时任务组件

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package com.kqinfo.universal.delay.task.thread;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;

/**
 * 线程池
 *
 * @author Zijian Liao
 * @since 1.0.0
 */
public final class ThreadPool {

    /**
     * 查询任务线程池，负责查询任务，将任务放入时间轮：单线程，定时任务线程池
     */
    public static final ScheduledThreadPoolExecutor DELAY_TASK_QUERY = ThreadPoolManager.getSingleScheduledExecutor("delay-task-query");
    /**
     * 执行任务线程池，负责将任务从时间轮取出：单线程, 定时任务线程池
     */
    public static final ScheduledThreadPoolExecutor DELAY_TASK_EXECUTOR = ThreadPoolManager.getSingleScheduledExecutor("delay-task-executor");
    /**
     * 清理任务线程池，负责清理已经执行成功的任务：单线程, 定时任务线程池
     */
    public static final ScheduledThreadPoolExecutor DELAY_TASK_CLEANER = ThreadPoolManager.getSingleScheduledExecutor("delay-task-cleaner");
    /**
     * 查询任务线程池，负责遍历任务，将任务传递给调度器：单线程
     */
    public static final ExecutorService DELAY_TASK_WORKER = ThreadPoolManager.getSingleExecutor("delay-task-worker");
    /**
     * 调度任务线程池，负责调度任务：多线程
     */
    public static final ExecutorService DELAY_TASK_INVOKER = ThreadPoolManager.getExecutor("delay-task-invoker");

    static {
        ThreadUtil.addShutdownHook(() -> {
            ThreadUtil.shutdownThreadPool(DELAY_TASK_QUERY);
            ThreadUtil.shutdownThreadPool(DELAY_TASK_EXECUTOR);
            ThreadUtil.shutdownThreadPool(DELAY_TASK_CLEANER);
            ThreadUtil.shutdownThreadPool(DELAY_TASK_WORKER);
            ThreadUtil.shutdownThreadPool(DELAY_TASK_INVOKER);
        });
    }
}