example-core/example-raw-jdbc/src/main/java/org/apache/shardingsphere/example/core/jdbc/service/OrderServiceImpl.java

/*
 * 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.shardingsphere.example.core.jdbc.service;

import org.apache.shardingsphere.example.core.api.entity.Address;
import org.apache.shardingsphere.example.core.api.entity.Order;
import org.apache.shardingsphere.example.core.api.entity.OrderItem;
import org.apache.shardingsphere.example.core.api.repository.AddressRepository;
import org.apache.shardingsphere.example.core.api.repository.OrderItemRepository;
import org.apache.shardingsphere.example.core.api.repository.OrderRepository;
import org.apache.shardingsphere.example.core.api.service.ExampleService;
import org.apache.shardingsphere.example.core.api.trace.DatabaseAccess;
import org.apache.shardingsphere.example.core.api.trace.MemoryLogService;
import org.apache.shardingsphere.example.core.jdbc.repository.AddressRepositoryImpl;
import org.apache.shardingsphere.example.core.jdbc.repository.OrderItemRepositoryImpl;
import org.apache.shardingsphere.example.core.jdbc.repository.OrderRepositoryImpl;

import javax.sql.DataSource;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

public final class OrderServiceImpl implements ExampleService {
    
    private MemoryLogService memoryLogService = new MemoryLogService();
    
    private OrderRepository orderRepository;
    
    private OrderItemRepository orderItemRepository;
    
    private AddressRepository addressRepository;
    
    public OrderServiceImpl(final DataSource dataSource) {
        this.orderRepository = new OrderRepositoryImpl(dataSource);
        this.orderItemRepository = new OrderItemRepositoryImpl(dataSource);
        this.addressRepository = new AddressRepositoryImpl(dataSource);
    }
    
    public OrderServiceImpl(final OrderRepository orderRepository, final OrderItemRepository orderItemRepository, final AddressRepository addressRepository) {
        this.orderRepository = orderRepository;
        this.orderItemRepository = orderItemRepository;
        this.addressRepository = addressRepository;
    }
    
    @Override
    public void initEnvironment() throws SQLException {
        orderRepository.createTableIfNotExists();
        orderItemRepository.createTableIfNotExists();
        orderRepository.truncateTable();
        orderItemRepository.truncateTable();
        initAddressTable();
    }
    
    private void initAddressTable() throws SQLException {
        addressRepository.createTableIfNotExists();
        addressRepository.truncateTable();
        initAddressData();
    }
    
    private void initAddressData() throws SQLException {
        for (int i = 0; i < 10; i++) {
            insertAddress(i);
        }
    }
    
    private void insertAddress(final int i) throws SQLException {
        Address address = new Address();
        address.setAddressId((long) i);
        address.setAddressName("address_" + i);
        addressRepository.insert(address);
    }
    
    @Override
    public void cleanEnvironment() throws SQLException {
        orderRepository.dropTable();
        orderItemRepository.dropTable();
        addressRepository.dropTable();
    }
    
    @Override
    public void processSuccess() throws SQLException {
        System.out.println("-------------- Process Success Begin ---------------");
        List<Long> orderIds = insertData();
        printData();
        deleteData(orderIds);
        printData();
        System.out.println("-------------- Process Success Finish --------------");
    }
    
    @Override
    public void processFailure() throws SQLException {
        System.out.println("-------------- Process Failure Begin ---------------");
        insertData();
        System.out.println("-------------- Process Failure Finish --------------");
        throw new RuntimeException("Exception occur for transaction test.");
    }
    
    private List<Long> insertData() throws SQLException {
        System.out.println("---------------------------- Insert Data ----------------------------");
        List<Long> result = new ArrayList<>(10);
        for (int i = 1; i <= 10; i++) {
            Order order = insertOrder(i);
            insertOrderItem(i, order);
            result.add(order.getOrderId());
        }
        return result;
    }
    
    private Order insertOrder(final int i) throws SQLException {
        Order order = new Order();
        order.setUserId(i);
        order.setAddressId(i);
        order.setStatus("INSERT_TEST");
        orderRepository.insert(order);
        memoryLogService.putOrderData(DatabaseAccess.INSERT, order);
        return order;
    }
    
    private void insertOrderItem(final int i, final Order order) throws SQLException {
        OrderItem item = new OrderItem();
        item.setOrderId(order.getOrderId());
        item.setUserId(i);
        item.setStatus("INSERT_TEST");
        orderItemRepository.insert(item);
        memoryLogService.putItemData(DatabaseAccess.INSERT, item);
    }
    
    private void deleteData(final List<Long> orderIds) throws SQLException {
        System.out.println("---------------------------- Delete Data ----------------------------");
        for (Long each : orderIds) {
            orderRepository.delete(each);
            orderItemRepository.delete(each);
        }
    }
    
    @Override
    public void printData() throws SQLException {
        System.out.println("---------------------------- Print Order Data -----------------------");
        for (Object each : orderRepository.selectAll()) {
            System.out.println(each);
            memoryLogService.putOrderData(DatabaseAccess.SELECT, (Order) each);
        }
        System.out.println("---------------------------- Print OrderItem Data -------------------");
        for (Object each : orderItemRepository.selectAll()) {
            System.out.println(each);
            memoryLogService.putItemData(DatabaseAccess.SELECT, (OrderItem) each);
        }
    }
    
    @Override
    public MemoryLogService getMemoryLogService() {
        return memoryLogService;
    }
}