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.bvt.pool;
  
  import com.alibaba.druid.PoolTestCase;
  import com.alibaba.druid.mock.MockDriver;
  import com.alibaba.druid.pool.DataSourceDisableException;
  import com.alibaba.druid.pool.DruidDataSource;
  import com.alibaba.druid.stat.DruidDataSourceStatManager;
  
  import java.sql.Connection;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  public class TestGraceShutdown extends PoolTestCase {
      private MockDriver driver;
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          DruidDataSourceStatManager.clear();
  
          driver = new MockDriver();
  
          dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mock:xxx");
          dataSource.setDriver(driver);
          dataSource.setInitialSize(1);
          dataSource.setMaxActive(2);
          dataSource.setMaxIdle(2);
          dataSource.setMaxWait(5);
          dataSource.setMinIdle(1);
          dataSource.setMinEvictableIdleTimeMillis(300 * 1000); // 300 / 10
          dataSource.setTimeBetweenEvictionRunsMillis(180 * 1000); // 180 / 10
          dataSource.setTestWhileIdle(true);
          dataSource.setTestOnBorrow(false);
          dataSource.setValidationQuery("SELECT 1");
          dataSource.setFilters("stat");
      }
  
      public void test_close() throws Exception {
          final int threadCount = 100;
          Thread[] threads = new Thread[threadCount];
          final CountDownLatch startLatch = new CountDownLatch(1);
          final CountDownLatch endLatch = new CountDownLatch(threadCount);
  
          for (int i = 0; i < threadCount; ++i) {
              threads[i] = new Thread("thread-" + i) {
                  public void run() {
                      try {
                          startLatch.await();
                          Connection conn = dataSource.getConnection();
                      } catch (DataSourceDisableException ex) {
                      } catch (Exception e) {
                          e.printStackTrace();
                      } finally {
                          endLatch.countDown();
                      }
                  }
              };
          }
  
          startLatch.countDown();
          for (int i = 0; i < threadCount; ++i) {
              threads[i].start();
          }
          Thread.sleep(5000);
  
          final CountDownLatch closeLatch = new CountDownLatch(1);
          new Thread("close thread") {
              public void run() {
                  System.out.println("执行close start");
                  dataSource.close();
                  closeLatch.countDown();
              }
          }.start();
  
          closeLatch.await();
          assertTrue(endLatch.await(60, TimeUnit.SECONDS));
      }
  }
  