content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.alibaba.druid.pool;
  
  import junit.framework.TestCase;
  
  import java.sql.Connection;
  import java.sql.Statement;
  import java.util.concurrent.CountDownLatch;
  
  public class TestMockPerf extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mock:xx");
          dataSource.setInitialSize(3);
          dataSource.setMinIdle(3);
          dataSource.setMaxActive(20);
          dataSource.setDbType("mysql");
          dataSource.setFilters("stat");
          dataSource.init();
      }
  
      public void test_perf() throws Exception {
          final CountDownLatch latch = new CountDownLatch(10);
          for (int i = 0; i < 10; ++i) {
              Thread thread = new Thread() {
                  public void run() {
                      try {
                          long startMillis = System.currentTimeMillis();
                          perf();
                          long millis = System.currentTimeMillis() - startMillis;
                          System.out.println("millis : " + millis);
                      } catch (Exception e) {
                          e.printStackTrace();
                      } finally {
                          latch.countDown();
                      }
                  }
              };
              thread.start();
  
          }
  
          latch.await();
      }
  
      public void perf() throws Exception {
          for (int i = 0; i < 1000 * 1000; ++i) {
              Connection conn = dataSource.getConnection();
              Statement stmt = conn.createStatement();
              stmt.execute("SELECT " + i % 1000);
              stmt.close();
              conn.close();
          }
      }
  }
  