/* * Copyright 2017-2020 吴学文 and java110 team. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.java110.acct.cmd.parkingCoupon; import com.alibaba.fastjson.JSONObject; import com.java110.core.annotation.Java110Cmd; import com.java110.core.annotation.Java110Transactional; import com.java110.core.context.ICmdDataFlowContext; import com.java110.core.event.cmd.Cmd; import com.java110.core.event.cmd.CmdEvent; import com.java110.core.factory.GenerateCodeFactory; import com.java110.doc.annotation.*; import com.java110.dto.parking.ParkingCouponCarDto; import com.java110.dto.parking.ParkingCouponShopDto; import com.java110.dto.shop.ShopDto; import com.java110.dto.shop.StoreShopDto; import com.java110.intf.acct.IParkingCouponCarV1InnerServiceSMO; import com.java110.intf.acct.IParkingCouponShopV1InnerServiceSMO; import com.java110.intf.acct.IParkingCouponV1InnerServiceSMO; import com.java110.intf.mall.IShopInnerServiceSMO; import com.java110.intf.shore.IShoreShopV1InnerServiceSMO; import com.java110.intf.store.IStoreShopV1InnerServiceSMO; import com.java110.po.parking.ParkingCouponCarPo; import com.java110.po.parking.ParkingCouponShopPo; import com.java110.utils.cache.CommonCache; import com.java110.utils.cache.MappingCache; import com.java110.utils.constant.MappingConstant; import com.java110.utils.exception.CmdException; import com.java110.utils.lock.DistributedLock; import com.java110.utils.util.Assert; import com.java110.utils.util.BeanConvertUtil; import com.java110.utils.util.DateUtil; import com.java110.utils.util.ListUtil; import com.java110.vo.ResultVo; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import java.util.List; @Java110CmdDoc(title = "商家赠送停车劵", description = "商家通过此接口赠送停车劵", httpMethod = "post", url = "http://{ip}:{port}/app/parkingCoupon.saveParkingCouponCar", resource = "acctDoc", author = "吴学文", serviceCode = "parkingCoupon.saveParkingCouponCar" ) @Java110ParamsDoc(params = { @Java110ParamDoc(name = "couponShopId", length = 30, remark = "优惠劵ID"), @Java110ParamDoc(name = "giveWay", length = 30, remark = "赠送方式 1001 扫码获取 2002 商家添加 3003 购物自动赠送"), @Java110ParamDoc(name = "carNum", length = 30, remark = "车牌号"), @Java110ParamDoc(name = "shopId", length = 30, remark = "店铺ID"), }) @Java110ResponseDoc( params = { @Java110ParamDoc(name = "code", type = "int", length = 11, defaultValue = "0", remark = "返回编号，0 成功 其他失败"), @Java110ParamDoc(name = "msg", type = "String", length = 250, defaultValue = "成功", remark = "描述"), } ) @Java110ExampleDoc( reqBody = "{\"shopId\":\"502022101140520018\",\"giveWay\":\"2002\",\"carNum\":\"青A88888\",\"couponShopId\":\"102022101112890007\"}", resBody = "{\"code\":0,\"msg\":\"成功\"}" ) /** * 停车券赠送命令类 * * 该类负责处理商家向车辆赠送停车券的业务逻辑，包括参数验证、库存检查、并发控制、 * 库存扣减和停车券发放等操作。 * * @author 吴学文 * @version 1.0 * @since 2022-10-12 */ @Java110Cmd(serviceCode = "parkingCoupon.saveParkingCouponCar") public class SaveParkingCouponCarCmd extends Cmd { private static Logger logger = LoggerFactory.getLogger(SaveParkingCouponCarCmd.class); /** ID生成前缀 */ public static final String CODE_PREFIX_ID = "10"; /** 停车券车辆服务接口 */ @Autowired private IParkingCouponCarV1InnerServiceSMO parkingCouponCarV1InnerServiceSMOImpl; /** 停车券服务接口 */ @Autowired private IParkingCouponV1InnerServiceSMO parkingCouponV1InnerServiceSMOImpl; /** 停车券店铺服务接口 */ @Autowired private IParkingCouponShopV1InnerServiceSMO parkingCouponShopV1InnerServiceSMOImpl; /** 店铺服务接口 */ @Autowired private IStoreShopV1InnerServiceSMO shopInnerServiceSMOImpl; /** * 参数验证方法 * * 验证请求参数的有效性，包括必填字段检查、店铺存在性验证和临时票据验证 * * @param event 命令事件对象 * @param cmdDataFlowContext 命令数据流上下文 * @param reqJson 请求JSON对象 * @throws CmdException 当参数验证失败时抛出异常 */ @Override public void validate(CmdEvent event, ICmdDataFlowContext cmdDataFlowContext, JSONObject reqJson) { // 验证必填参数是否存在 Assert.hasKeyAndValue(reqJson, "couponShopId", "请求报文中未包含couponShopId"); Assert.hasKeyAndValue(reqJson, "shopId", "请求报文中未包含shopId"); Assert.hasKeyAndValue(reqJson, "carNum", "请求报文中未包含carNum"); Assert.hasKeyAndValue(reqJson, "giveWay", "请求报文中未包含giveWay"); Assert.hasKeyAndValue(reqJson, "code", "请求报文中未包含临时票据"); // 验证店铺是否存在 StoreShopDto shopDto = new StoreShopDto(); shopDto.setShopId(reqJson.getString("shopId")); List shopDtos = shopInnerServiceSMOImpl.queryStoreShops(shopDto); if (ListUtil.isNull(shopDtos)) { throw new CmdException("店铺不存在"); } // 构建缓存键 String codeKey = reqJson.getString("shopId") + reqJson.getString("code"); // 检查是否开启停车券二维码验证 String checkCode = MappingCache.getValue(MappingConstant.DOMAIN_SYSTEM_SWITCH, "CHECK_PARKING_COUPON_QRCODE_CODE"); // 如果验证功能关闭，直接返回 if ("OFF".equals(checkCode)) { return; } // 验证临时票据是否有效 if (!reqJson.getString("code").equals(CommonCache.getAndRemoveValue(codeKey))) { throw new CmdException("非法操作"); } } /** * 执行停车券赠送命令 * * 处理停车券赠送的核心业务逻辑，包括库存检查、并发控制、库存扣减和停车券发放 * * @param event 命令事件对象 * @param cmdDataFlowContext 命令数据流上下文 * @param reqJson 请求JSON对象 * @throws CmdException 当业务处理失败时抛出异常 */ @Override @Java110Transactional public void doCmd(CmdEvent event, ICmdDataFlowContext cmdDataFlowContext, JSONObject reqJson) throws CmdException { // 查询停车券店铺信息 ParkingCouponShopDto parkingCouponShopDto = new ParkingCouponShopDto(); parkingCouponShopDto.setCouponShopId(reqJson.getString("couponShopId")); parkingCouponShopDto.setShopId(reqJson.getString("shopId")); List parkingCouponShopDtos = parkingCouponShopV1InnerServiceSMOImpl.queryParkingCouponShops(parkingCouponShopDto); // 验证停车券是否存在且唯一 Assert.listOnlyOne(parkingCouponShopDtos, "停车劵不存在"); // 检查停车券库存 int quantity = Integer.parseInt(parkingCouponShopDtos.get(0).getQuantity()); if (quantity < 1) { throw new CmdException("停车劵不足，请购买"); } int flag = 0; // 使用分布式锁防止并发问题 String requestId = DistributedLock.getLockUUID(); String key = this.getClass().getSimpleName() + reqJson.getString("couponShopId"); try { // 获取分布式锁 DistributedLock.waitGetDistributedLock(key, requestId); // 在锁内重新查询库存，防止库存被其他线程修改 parkingCouponShopDto = new ParkingCouponShopDto(); parkingCouponShopDto.setCouponShopId(reqJson.getString("couponShopId")); parkingCouponShopDto.setShopId(reqJson.getString("shopId")); parkingCouponShopDtos = parkingCouponShopV1InnerServiceSMOImpl.queryParkingCouponShops(parkingCouponShopDto); quantity = Integer.parseInt(parkingCouponShopDtos.get(0).getQuantity()); // 再次检查库存 if (quantity < 1) { throw new CmdException("停车劵不足，请购买"); } // 扣减停车券库存 ParkingCouponShopPo parkingCouponShopPo = new ParkingCouponShopPo(); parkingCouponShopPo.setCouponShopId(parkingCouponShopDtos.get(0).getCouponShopId()); parkingCouponShopPo.setQuantity((quantity - 1) + ""); flag = parkingCouponShopV1InnerServiceSMOImpl.updateParkingCouponShop(parkingCouponShopPo); if (flag < 1) { throw new CmdException("优惠券递减失败"); } } finally { // 释放分布式锁 DistributedLock.releaseDistributedLock(key, requestId); } // 创建停车券车辆记录 ParkingCouponCarPo parkingCouponCarPo = BeanConvertUtil.covertBean(reqJson, ParkingCouponCarPo.class); parkingCouponCarPo.setPccId(GenerateCodeFactory.getGeneratorId(CODE_PREFIX_ID)); parkingCouponCarPo.setCouponId(parkingCouponShopDtos.get(0).getCouponId()); parkingCouponCarPo.setCommunityId(parkingCouponShopDtos.get(0).getCommunityId()); // 设置开始时间为当前时间 parkingCouponCarPo.setStartTime(DateUtil.getNow(DateUtil.DATE_FORMATE_STRING_A)); // 设置结束时间为第二天 parkingCouponCarPo.setEndTime(DateUtil.getAddDayString(DateUtil.getCurrentDate(), DateUtil.DATE_FORMATE_STRING_A, 1)); parkingCouponCarPo.setPaId(parkingCouponShopDtos.get(0).getPaId()); // 设置状态为待使用 parkingCouponCarPo.setState(ParkingCouponCarDto.STATE_WAIT); parkingCouponCarPo.setTypeCd(parkingCouponShopDtos.get(0).getTypeCd()); parkingCouponCarPo.setValue(parkingCouponShopDtos.get(0).getValue()); // 保存停车券车辆记录 flag = parkingCouponCarV1InnerServiceSMOImpl.saveParkingCouponCar(parkingCouponCarPo); if (flag < 1) { throw new CmdException("保存数据失败"); } // 返回成功响应 cmdDataFlowContext.setResponseEntity(ResultVo.success()); } }