9th/src/main/java/com/izouma/nineth/service/ActivityCollectionService.java

package com.izouma.nineth.service;

import com.izouma.nineth.annotations.Debounce;
import com.izouma.nineth.config.GeneralProperties;
import com.izouma.nineth.config.RedisKeys;
import com.izouma.nineth.domain.ActivityCollection;
import com.izouma.nineth.dto.PageQuery;
import com.izouma.nineth.repo.ActivityCollectionRepo;
import com.izouma.nineth.utils.JpaUtils;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.rocketmq.spring.core.RocketMQTemplate;
import org.springframework.data.domain.Page;
import org.springframework.data.redis.core.BoundValueOperations;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Optional;
import java.util.concurrent.TimeUnit;

@Slf4j
@Service
@AllArgsConstructor
public class ActivityCollectionService {

    private ActivityCollectionRepo        activityCollectionRepo;
    private RedisTemplate<String, Object> redisTemplate;
    private CacheService                  cacheService;
    private RocketMQTemplate              rocketMQTemplate;
    private GeneralProperties             generalProperties;

    public Page<ActivityCollection> all(PageQuery pageQuery) {
        return activityCollectionRepo.findAll(JpaUtils.toSpecification(pageQuery, ActivityCollection.class), JpaUtils.toPageRequest(pageQuery));
    }

    public synchronized Long increaseStock(Long id, int number) {
        BoundValueOperations<String, Object> ops = redisTemplate.boundValueOps(RedisKeys.MINT_ACTIVITY_STOCK + id);
        if (ops.get() == null) {
            Boolean success = ops.setIfAbsent(Optional.ofNullable(activityCollectionRepo.getStock(id))
                    .orElse(0), 7, TimeUnit.DAYS);
            log.info("创建redis铸造活动库存：{}", success);
        }
        Long stock = ops.increment(number);
        rocketMQTemplate.convertAndSend(generalProperties.getUpdateActivityStockTopic(), id);
        return stock;
    }

    @Debounce(key = "#id", delay = 500)
    public void syncStock(Long id) {
        Integer stock = (Integer) redisTemplate.opsForValue().get(RedisKeys.MINT_ACTIVITY_STOCK + id);
        if (stock != null) {
            log.info("同步铸造活动库存信息{}", id);
            activityCollectionRepo.updateStock(id, stock);
            cacheService.clearActivityCollection(id);
        }
    }
}