初始化

xuekang

2024-05-10 e61e42e56b2dcede08cd09acd86399cb04bb3c4a

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package org.dromara.common.core.config;
 
import cn.hutool.core.util.ArrayUtil;
import jakarta.annotation.PreDestroy;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.concurrent.BasicThreadFactory;
import org.dromara.common.core.exception.ServiceException;
import org.dromara.common.core.utils.SpringUtils;
import org.dromara.common.core.utils.Threads;
import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.annotation.EnableAsync;
 
import java.util.Arrays;
import java.util.concurrent.*;
 
/**
 * 异步配置
 *
 * @author Lion Li
 */
@Slf4j
@EnableAsync(proxyTargetClass = true)
@AutoConfiguration
public class AsyncConfig implements AsyncConfigurer {
 
    private final int corePoolSize = Runtime.getRuntime().availableProcessors() + 1;
    private ScheduledExecutorService scheduledExecutorService;
 
    /**
     * 执行周期性或定时任务
     */
    @Bean(name = "scheduledExecutorService")
    public ScheduledExecutorService scheduledExecutorService() {
        ScheduledThreadPoolExecutor scheduledThreadPoolExecutor = new ScheduledThreadPoolExecutor(corePoolSize,
            new BasicThreadFactory.Builder().namingPattern("schedule-pool-%d").daemon(true).build(),
            new ThreadPoolExecutor.CallerRunsPolicy()) {
            @Override
            protected void afterExecute(Runnable r, Throwable t) {
                super.afterExecute(r, t);
                printException(r, t);
            }
        };
        this.scheduledExecutorService = scheduledThreadPoolExecutor;
        return scheduledThreadPoolExecutor;
    }
 
    /**
     * 销毁事件
     */
    @PreDestroy
    public void destroy() {
        try {
            log.info("====关闭后台任务任务线程池====");
            Threads.shutdownAndAwaitTermination(scheduledExecutorService);
        } catch (Exception e) {
            log.error(e.getMessage(), e);
        }
    }
 
    /**
     * 自定义 @Async 注解使用系统线程池
     */
    @Override
    public Executor getAsyncExecutor() {
        return SpringUtils.getBean("scheduledExecutorService");
    }
 
    /**
     * 异步执行异常处理
     */
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return (throwable, method, objects) -> {
            throwable.printStackTrace();
            StringBuilder sb = new StringBuilder();
            sb.append("Exception message - ").append(throwable.getMessage())
                .append(", Method name - ").append(method.getName());
            if (ArrayUtil.isNotEmpty(objects)) {
                sb.append(", Parameter value - ").append(Arrays.toString(objects));
            }
            throw new ServiceException(sb.toString());
        };
    }
 
    /**
     * 打印线程异常信息
     */
    public void printException(Runnable r, Throwable t) {
        if (t == null && r instanceof Future<?>) {
            try {
                Future<?> future = (Future<?>) r;
                if (future.isDone()) {
                    future.get();
                }
            } catch (CancellationException ce) {
                t = ce;
            } catch (ExecutionException ee) {
                t = ee.getCause();
            } catch (InterruptedException ie) {
                Thread.currentThread().interrupt();
            }
        }
        if (t != null) {
            log.error(t.getMessage(), t);
        }
    }
 
}