package com.ruoyi.goods.service.async;
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import com.ruoyi.common.core.constant.SecurityConstants;
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import com.ruoyi.common.core.utils.StringUtils;
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import com.ruoyi.common.redis.service.RedisService;
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import com.ruoyi.system.api.constants.DelayTaskEnum;
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import com.ruoyi.system.api.domain.DelayTask;
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import com.ruoyi.system.api.domain.GoodsGroupPurchase;
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import com.ruoyi.system.api.domain.GoodsSeckill;
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import com.ruoyi.system.api.feignClient.SysUserClient;
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import java.time.Duration;
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import java.time.LocalDateTime;
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import java.util.List;
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import java.util.concurrent.TimeUnit;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.scheduling.annotation.Async;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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/**
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* @author mitao
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* @date 2024/5/24
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*/
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@Service
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@Slf4j
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@RequiredArgsConstructor
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public class AsyncMethodService {
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private final RedisService redisService;
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private final SysUserClient sysUserClient;
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@Async
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@Transactional(rollbackFor = Exception.class)
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public void seckillScheduleTask(List<GoodsSeckill> goodsSeckillList) {
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for (GoodsSeckill goodsSeckill : goodsSeckillList) {
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LocalDateTime startTime = goodsSeckill.getStartTime();
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LocalDateTime endTime = goodsSeckill.getEndTime();
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// 秒杀在一小时内开始
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if (isWithinOneHour(startTime)) {
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Long id = goodsSeckill.getId();
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// 秒杀已经开始
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if (LocalDateTime.now().isAfter(startTime)) {
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handleStartDelayTask(id, DelayTaskEnum.SECKILL_START_TASK, startTime, 3L);
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} else {
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Duration duration = Duration.between(LocalDateTime.now(), startTime);
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handleStartDelayTask(id, DelayTaskEnum.SECKILL_START_TASK, startTime,
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duration.getSeconds());
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}
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log.info(">>>>>>>>>>>>>>>>>>>>秒杀商品：{} 开始秒杀<<<<<<<<<<<<<<<<<<<<", id);
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// 秒杀结束延时任务
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handleEndDelayTask(id, DelayTaskEnum.SECKILL_END_TASK, endTime);
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}
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}
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}
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@Async
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@Transactional(rollbackFor = Exception.class)
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public void groupPurchaseScheduleTask(List<GoodsGroupPurchase> groupPurchaseList) {
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for (GoodsGroupPurchase goodsGroupPurchase : groupPurchaseList) {
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LocalDateTime startTime = goodsGroupPurchase.getStartTime();
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LocalDateTime endTime = goodsGroupPurchase.getEndTime();
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// 团购在一小时内开始
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if (isWithinOneHour(startTime)) {
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Long id = goodsGroupPurchase.getId();
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// 团购已经开始，三秒后执行
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if (LocalDateTime.now().isAfter(startTime)) {
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handleStartDelayTask(id, DelayTaskEnum.GROUP_PURCHASES_START_TASK, startTime,
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3L);
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} else {
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Duration duration = Duration.between(LocalDateTime.now(), startTime);
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handleStartDelayTask(id, DelayTaskEnum.GROUP_PURCHASES_START_TASK, startTime,
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duration.getSeconds());
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}
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// 团购结束延时任务
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handleEndDelayTask(id, DelayTaskEnum.GROUP_PURCHASES_END_TASK, endTime);
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}
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}
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}
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private boolean isWithinOneHour(LocalDateTime startTime) {
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LocalDateTime checkTime = LocalDateTime.now().plusHours(1);
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return checkTime.isAfter(startTime);
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}
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private void handleEndDelayTask(Long id, DelayTaskEnum delayTaskEnum, LocalDateTime endTime) {
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String endTaskKey = delayTaskEnum.getCode() + "-" + id;
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DelayTask endDelayTask = sysUserClient.getDelayTask(
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endTaskKey, SecurityConstants.INNER).getData();
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// 如果延时任务为空，创建延时任务控制活动定时开始和结束
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Duration duration = Duration.between(LocalDateTime.now(), endTime);
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if (StringUtils.isNull(endDelayTask)) {
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createEndDelayTask(endTime, endTaskKey, duration);
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} else {
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if (!endDelayTask.getExecuteTime().isEqual(endTime)) {
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sysUserClient.deleteDelayTask(endTaskKey,
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SecurityConstants.INNER);
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redisService.deleteObject(endTaskKey);
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createEndDelayTask(endTime, endTaskKey, duration);
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}
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}
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log.info(">>>>>>>>>>>>>>>>>>>>延时任务{}执行了<<<<<<<<<<<<<<<<<<<<", endTaskKey);
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}
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private void createEndDelayTask(LocalDateTime endTime, String seckillEndTaskKey,
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Duration duration) {
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DelayTask endDelayTask;
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redisService.setCacheObject(
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seckillEndTaskKey,
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endTime, duration.getSeconds(), TimeUnit.SECONDS);
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endDelayTask = new DelayTask();
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endDelayTask.setDelFlag(0);
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endDelayTask.setCreateTime(LocalDateTime.now());
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endDelayTask.setExecuteTime(endTime);
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endDelayTask.setRedisKey(seckillEndTaskKey);
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sysUserClient.addDelayTask(endDelayTask, SecurityConstants.INNER);
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}
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private void handleStartDelayTask(Long id, DelayTaskEnum delayTaskEnum, LocalDateTime startTime,
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Long timeout) {
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String startTaskKey = delayTaskEnum.getCode() + "-" + id;
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//查询延时任务
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DelayTask startDelayTask = sysUserClient.getDelayTask(
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startTaskKey, SecurityConstants.INNER).getData();
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if (StringUtils.isNull(startDelayTask)) {
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startDelayTask = new DelayTask();
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startDelayTask.setDelFlag(0);
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startDelayTask.setCreateTime(LocalDateTime.now());
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startDelayTask.setExecuteTime(LocalDateTime.now().plusSeconds(timeout));
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startDelayTask.setRedisKey(
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startTaskKey);
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sysUserClient.addDelayTask(startDelayTask, SecurityConstants.INNER);
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} else {
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if (!startDelayTask.getExecuteTime().isEqual(startTime)) {
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sysUserClient.deleteDelayTask(
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startTaskKey, SecurityConstants.INNER);
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redisService.deleteObject(
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startTaskKey);
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startDelayTask.setDelFlag(0);
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startDelayTask.setCreateTime(LocalDateTime.now());
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startDelayTask.setExecuteTime(LocalDateTime.now().plusSeconds(timeout));
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startDelayTask.setRedisKey(
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startTaskKey);
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sysUserClient.addDelayTask(startDelayTask, SecurityConstants.INNER);
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}
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}
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redisService.setCacheObject(startTaskKey, startTime, timeout, TimeUnit.SECONDS);
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log.info(">>>>>>>>>>>>>>>>>>>>延时任务{}执行了<<<<<<<<<<<<<<<<<<<<", startTaskKey);
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}
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}
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