[GitHub] [servicecomb-samples] WillemJiang commented on a change in pull request #13: Add the one of 6 micro-services: House-Order

[GitBox <gi...@apache.org>]

WillemJiang commented on a change in pull request #13: Add the one of 6 micro-services: House-Order
URL: https://github.com/apache/servicecomb-samples/pull/13#discussion_r310946784
 
 

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 File path: houserush/house-order/src/main/java/org/apache/servicecomb/samples/practise/houserush/sale/service/HouseOrderServiceImpl.java
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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.samples.practise.houserush.sale.service;
+
+import org.apache.servicecomb.provider.pojo.RpcReference;
+import org.apache.servicecomb.samples.practise.houserush.sale.aggregate.HouseOrder;
+import org.apache.servicecomb.samples.practise.houserush.sale.aggregate.Sale;
+import org.apache.servicecomb.samples.practise.houserush.sale.dao.HouseOrderDao;
+import org.apache.servicecomb.samples.practise.houserush.sale.dao.SaleDao;
+import org.apache.servicecomb.samples.practise.houserush.sale.rpc.CustomerManageApi;
+import org.apache.servicecomb.samples.practise.houserush.sale.rpc.RealestateApi;
+import org.apache.servicecomb.samples.practise.houserush.sale.rpc.po.Customer;
+import org.apache.servicecomb.samples.practise.houserush.sale.rpc.po.House;
+import org.apache.servicecomb.samples.practise.houserush.sale.rpc.po.Realestate;
+import org.apache.servicecomb.swagger.invocation.exception.InvocationException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.dao.DataRetrievalFailureException;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@Service
+public class HouseOrderServiceImpl implements HouseOrderService {
+  @Autowired
+  HouseOrderDao houseOrderDao;
+
+  @Autowired
+  SaleDao saleDao;
+
+  @RpcReference(microserviceName = "realestate", schemaId = "realestateApiRest")
+  private RealestateApi realestateApi;
+
+  @RpcReference(microserviceName = "customer-manage", schemaId = "customerManageApiRest")
+  private CustomerManageApi customerManageApi;
+
+  @Override
+  @Transactional
+  public List<HouseOrder> createHouseOrders(int saleId, List<Integer> houseIds) {
+    Sale sale = saleDao.findOne(saleId);
+    if (null == sale) {
+      throw new DataRetrievalFailureException("cannot create house for the non-existed sale.");
+    }
+
+    List<HouseOrder> houseOrders = houseOrderDao.findAllBySaleIdAndHouseIdInForUpdate(saleId, houseIds);
+    if (!houseOrders.isEmpty()) {
+      throw new InvocationException(400, "", "some house is already in this sale.");
+    }
+
+    List<House> houses = realestateApi.lockHousesForSale(houseIds);
+    List<HouseOrder> resHouseOrders = new ArrayList<>();
+    houses.forEach(house -> {
+      HouseOrder houseOrder = new HouseOrder();
+      houseOrder.setHouseId(house.getId());
+      houseOrder.setSale(sale);
+      houseOrderDao.save(houseOrder);
+      resHouseOrders.add(houseOrder);
+
+    });
+    return resHouseOrders;
+  }
+
+  @Override
+  @Transactional
+  public HouseOrder placeHouseOrder(int customerId, int houseOrderId) {
+    HouseOrder houseOrder = houseOrderDao.findOneForUpdate(houseOrderId);
+    Sale sale = houseOrder.getSale();
+
+    if (null != houseOrder) {
+      if (null == houseOrder.getCustomerId()) {
+        Customer customer = customerManageApi.findCustomer(customerId);
+        int qualificationsCount = customerManageApi.getQualificationsCount(customerId, sale.getId());
+
+        int ordersCount = houseOrderDao.countByCustomerIdAndSaleId(customerId, sale.getId());
+
+        if (qualificationsCount <= ordersCount) {
+          throw new InvocationException(400, "", "do not have the enough qualification to buy houses in this sale, " +
+              "the qualifications count is " + qualificationsCount + " , the order count is " + ordersCount);
+        }
+
+        houseOrder.setCustomerId(customerId);
+        houseOrder.setState("confirmed");
+        houseOrderDao.save(houseOrder);
+        return houseOrder;
+      } else {
+        throw new InvocationException(400, "", "该住宅已被其他人选购，请选择其他房产。");
 
 Review comment:
   Can we change to write the english exception message?

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