package com.java110.core.aop;
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import com.java110.core.factory.Java110TransactionalFactory;
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import com.java110.core.log.LoggerFactory;
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import com.java110.dto.order.OrderDto;
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import com.java110.utils.constant.CommonConstant;
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import com.java110.utils.util.StringUtil;
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import org.aspectj.lang.JoinPoint;
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import org.aspectj.lang.ProceedingJoinPoint;
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import org.aspectj.lang.annotation.*;
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import org.slf4j.Logger;
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import org.springframework.stereotype.Component;
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import org.springframework.web.context.request.RequestContextHolder;
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import org.springframework.web.context.request.ServletRequestAttributes;
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import javax.servlet.http.HttpServletRequest;
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import java.io.IOException;
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import java.util.Enumeration;
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/**
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* @ClassName Java110TransactionalAop
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* @Description TODO
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* @Author wuxw
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* @Date 2020/7/3 22:13
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* @Version 1.0
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* add by wuxw 2020/7/3
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**/
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@Component
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@Aspect
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public class Java110TransactionalAop {
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private static Logger logger = LoggerFactory.getLogger(Java110TransactionalAop.class);
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@Pointcut("@annotation(com.java110.core.annotation.Java110Transactional)")
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public void dataProcess() {
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}
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/**
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* 初始化数据
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*
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* @param joinPoint
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* @throws Throwable
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*/
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@Before("dataProcess()")
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public void deBefore(JoinPoint joinPoint) throws Throwable {
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}
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@AfterReturning(returning = "ret", pointcut = "dataProcess()")
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public void doAfterReturning(Object ret) throws Throwable {
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// 处理完请求，返回内容
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logger.debug("方法调用前执行doAfterReturning（）");
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}
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//后置异常通知
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@AfterThrowing("dataProcess()")
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public void throwException(JoinPoint jp) {
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logger.debug("方法调用异常执行throwException（）");
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}
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//后置最终通知,final增强，不管是抛出异常或者正常退出都会执行
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@After("dataProcess()")
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public void after(JoinPoint jp) throws IOException {
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// 接收到请求，记录请求内容
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logger.debug("方法调用后执行after（）");
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}
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//环绕通知,环绕增强，相当于MethodInterceptor
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@Around("dataProcess()")
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public Object around(ProceedingJoinPoint pjp) throws Throwable {
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Object o = null;
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// 接收到请求，记录请求内容
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String curOId = Java110TransactionalFactory.getOId();
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if (StringUtil.isEmpty(curOId)) {
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ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
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HttpServletRequest request = attributes.getRequest();
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Enumeration<String> headerNames = request.getHeaderNames();
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OrderDto orderDto = new OrderDto();
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while (headerNames.hasMoreElements()) {
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String key = (String) headerNames.nextElement();
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String value = request.getHeader(key);
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logger.debug("请求头信息 key= " + key + ",value = " + value);
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key = key.toLowerCase();
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if (CommonConstant.APP_ID.equals(key) || CommonConstant.HTTP_APP_ID.equals(key)) {
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orderDto.setAppId(value);
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}
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if (CommonConstant.TRANSACTION_ID.equals(key) || CommonConstant.HTTP_TRANSACTION_ID.equals(key)) {
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orderDto.setExtTransactionId(value);
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}
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if (CommonConstant.REQUEST_TIME.equals(key) || CommonConstant.HTTP_REQ_TIME.equals(key)) {
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orderDto.setRequestTime(value);
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}
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if (OrderDto.O_ID.equals(key)) {
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orderDto.setoId(value);
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}
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if (CommonConstant.USER_ID.equals(key) || CommonConstant.HTTP_USER_ID.equals(key)) {
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orderDto.setUserId(value);
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}
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}
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orderDto.setOrderTypeCd(OrderDto.ORDER_TYPE_DEAL);
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//全局事务ID申请
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Java110TransactionalFactory.getOrCreateOId(orderDto);
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}
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try {
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o = pjp.proceed();
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//观察者不做处理
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if (Java110TransactionalFactory.ROLE_OBSERVER.equals(Java110TransactionalFactory.getServiceRole())) {
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return o;
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}
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//完成事务
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if (StringUtil.isEmpty(curOId)) {
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Java110TransactionalFactory.finishOId();
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}
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return o;
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} catch (Throwable e) {
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logger.error("执行方法异常", e);
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//回退事务
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if (StringUtil.isEmpty(curOId)) {
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Java110TransactionalFactory.fallbackOId();
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}
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//return new BusinessDto(BusinessDto.CODE_ERROR, "内部异常" + e.getLocalizedMessage());
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throw e;
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} finally {
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//完成事务
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if (StringUtil.isEmpty(curOId)) {
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//清理事务信息
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Java110TransactionalFactory.clearOId();
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}
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}
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}
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}
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