package com.glxp.api.config;

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

import java.util.concurrent.ThreadPoolExecutor;

/**
 * 配置线程池
 */
@Configuration
@EnableAsync
public class TaskPoolConfig {

    @Bean(name = "taskExecutor")
    public ThreadPoolTaskExecutor taskExecutor() {
        // 获取当前主机的cpu核心数
        int threadCount = Runtime.getRuntime().availableProcessors();
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        //核心池的大小
        taskExecutor.setCorePoolSize(threadCount);
        //线程池最大线程数
        taskExecutor.setMaxPoolSize(threadCount * 2);
        //队列最大长度
        taskExecutor.setQueueCapacity(200);
        //线程空闲时间
        taskExecutor.setKeepAliveSeconds(60);
        //配置线程前缀
        taskExecutor.setThreadNamePrefix("custom_executor");
        //配置拒绝策略
        taskExecutor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        //执行初始化
        taskExecutor.initialize();
        return taskExecutor;
    }
}