package com.ruoyi.framework.config;

import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableAsync;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

/**
 * 异步任务配置
 * 用于支持@Async注解的异步方法执行
 * 
 * @author ruoyi
 */
@Configuration
@EnableAsync
public class AsyncConfig {
    
    /**
     * 自定义异步任务线程池
     */
    @Bean(name = "taskExecutor")
    public Executor taskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        // 核心线程数
        executor.setCorePoolSize(5);
        // 最大线程数
        executor.setMaxPoolSize(10);
        // 队列容量
        executor.setQueueCapacity(100);
        // 线程名称前缀
        executor.setThreadNamePrefix("async-task-");
        // 拒绝策略：由调用线程执行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        // 初始化
        executor.initialize();
        return executor;
    }
}