content: /*
   * Copyright 2013-2023 the original author or authors.
   *
   * 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
   *
   *      https://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.alibaba.cloud.examples;
  
  import java.util.Random;
  
  import io.seata.core.context.RootContext;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.springframework.jdbc.core.JdbcTemplate;
  import org.springframework.web.bind.annotation.PostMapping;
  import org.springframework.web.bind.annotation.RestController;
  
  /**
   * @author xiaojing
   */
  @RestController
  public class AccountController {
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(AccountController.class);
  
  	private static final String SUCCESS = "SUCCESS";
  
  	private static final String FAIL = "FAIL";
  
  	private final JdbcTemplate jdbcTemplate;
  
  	private Random random;
  
  	public AccountController(JdbcTemplate jdbcTemplate) {
  		this.jdbcTemplate = jdbcTemplate;
  		this.random = new Random();
  	}
  
  	@PostMapping(value = "/account", produces = "application/json")
  	public String account(String userId, int money) {
  		LOGGER.info("Account Service ... xid: " + RootContext.getXID());
  
  		if (random.nextBoolean()) {
  			throw new RuntimeException("this is a mock Exception");
  		}
  
  		int result = jdbcTemplate.update(
  				"update account_tbl set money = money - ? where user_id = ?",
  				new Object[] { money, userId });
  		LOGGER.info("Account Service End ... ");
  		if (result == 1) {
  			return SUCCESS;
  		}
  		return FAIL;
  	}
  
  }
  