package com.gkhy.safePlatform.config.ThreadExecutor;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.scheduling.annotation.AsyncConfigurer;
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import org.springframework.scheduling.annotation.EnableAsync;
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import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
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import java.lang.reflect.Method;
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import java.util.concurrent.Executor;
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import java.util.concurrent.ThreadPoolExecutor;
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@Configuration
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@EnableAsync
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public class ExecutorConfig implements AsyncConfigurer {
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private Logger logger = LoggerFactory.getLogger(ExecutorConfig.class);
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/**
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* 最小线程数(核心线程数)
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*/
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@Value("${threadPool.corePoolSize}")
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private int corePoolSize;
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/**
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* 最大线程数
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*/
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@Value("${threadPool.maxPoolSize}")
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private int maxPoolSize;
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/**
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* 等待队列(队列最大长度)
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*/
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@Value("${threadPool.queueCapacity}")
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private int queueCapacity;
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@Bean(name = "SocketTaskExecutor")
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public Executor asyncServiceExecutor() {
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logger.info("start asyncServiceExecutor");
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ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
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//配置核心线程数
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executor.setCorePoolSize(corePoolSize);
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//配置最大线程数
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executor.setMaxPoolSize(maxPoolSize);
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//配置队列大小
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executor.setQueueCapacity(queueCapacity);
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//配置线程池中的线程的名称前缀
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executor.setThreadNamePrefix("async-service-");
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// rejection-policy：当pool已经达到max size的时候，如何处理新任务
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// CALLER_RUNS：不在新线程中执行任务，而是有调用者所在的线程来执行
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executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
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//执行初始化
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executor.initialize();
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return executor;
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}
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/**
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* 异步异常处理
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*
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* @return
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*/
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@Override
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public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
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return new SpringAsyncExceptionHandler();
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}
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class SpringAsyncExceptionHandler implements AsyncUncaughtExceptionHandler {
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@Override
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public void handleUncaughtException(Throwable throwable, Method method, Object... obj) {
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logger.error("Exception occurs in async method", throwable.getMessage());
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}
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}
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}
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