/*
 * MIT License
 *
 * Copyright (c) [2023]
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.alipay.altershield.schedule;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

import java.util.concurrent.ThreadPoolExecutor;

/**
 * @author jinyalong
 * @version : SchedulerThreadPoolConfig.java, v 0.1 2023-08-25 xiangyue Exp $$
 */
@Configuration
public class SchedulerThreadPoolConfig {

    private static final int poolSize = 4;

    /**
     * schedulePoint专用线程池
     * @return 返回调度任务线程池
     */
    @Bean(name = "schedulePointThreadPoolTaskExecutor")
    public ThreadPoolTaskExecutor createSchedulerThreadPool()
    {
        ThreadPoolTaskExecutor threadPoolTaskExecutor = new ThreadPoolTaskExecutor();
        threadPoolTaskExecutor.setMaxPoolSize(poolSize);
        threadPoolTaskExecutor.setCorePoolSize(poolSize);
        threadPoolTaskExecutor.setThreadNamePrefix("alter-shield-scheduler-");
        threadPoolTaskExecutor.setQueueCapacity(poolSize);
        threadPoolTaskExecutor.setWaitForTasksToCompleteOnShutdown(true);
        //使用无界的queue
        threadPoolTaskExecutor.setQueueCapacity(0);
        threadPoolTaskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        return threadPoolTaskExecutor;
    }
}