package com.ltkj.framework.aspectj;

import com.ltkj.db.DataSourceContextHolder;
import com.ltkj.framework.datasource.DynamicDataSourceContextHolder;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

/**
 * ClassName: AsynAspect <br/>
 * Description: 在异步方法执行时，获取并传递当前线程的数据源。<br/>
 * date: 2025/2/15 18:07<br/>
 *
 * @author zjh<br />
 */
@Aspect
@Component
public class AsynAspect {

    private static final Logger logger = LoggerFactory.getLogger(AsynAspect.class);

    @Pointcut("@annotation(org.springframework.scheduling.annotation.Async) || @within(org.springframework.scheduling.annotation.Async)")
    public void asyncPointCut() {
        // 异步方法切入点
    }

    @Around("asyncPointCut()")
    public Object around(ProceedingJoinPoint point) throws Throwable {
        // 获取当前线程的 DataSource
        String currentDataSource = DataSourceContextHolder.getDataSourceKey();

        logger.info("当前线程数据源: {}", currentDataSource);

        // 在异步方法执行前，设置数据源到 DynamicDataSourceContextHolder
        DynamicDataSourceContextHolder.setDataSourceType(currentDataSource);

        try {
            // 执行异步方法
            return point.proceed();
        } finally {
            // 执行完毕后清理数据源
            DynamicDataSourceContextHolder.clearDataSourceType();
            logger.info("清理数据源，恢复默认数据源");
        }
    }
}