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 MaxWaitTest extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mysql://localhost:3306/sonar");
          dataSource.setUsername("sonar");
          dataSource.setPassword("sonar");
          dataSource.setFilters("stat");
          dataSource.setMaxWait(1000);
          dataSource.setInitialSize(3);
          dataSource.setMinIdle(3);
          dataSource.setMaxActive(3);
      }
  
      public void test_maxWait() throws Exception {
          final CountDownLatch latch = new CountDownLatch(10);
          for (int i = 0; i < 20; ++i) {
              Thread thread = new Thread() {
                  public void run() {
                      try {
                          for (int i = 0; i < 10; ++i) {
                              try {
                                  Connection conn = dataSource.getConnection();
                                  Statement stmt = conn.createStatement();
                                  stmt.execute("select sleep(" + (i % 5 + 1) + ")");
                                  stmt.close();
                                  conn.close();
                              } catch (Exception e) {
                                  e.printStackTrace();
                              }
                          }
                      } finally {
                          latch.countDown();
                      }
                  }
              };
              thread.start();
          }
  
          latch.await();
      }
  }
  