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.benckmark.wall;
  
  import com.alibaba.druid.wall.WallProvider;
  import com.alibaba.druid.wall.spi.MySqlWallProvider;
  import junit.framework.TestCase;
  
  import java.util.concurrent.CountDownLatch;
  
  public class WallBenchmarkTest_mysql_concurrent extends TestCase {
      WallProvider provider = new MySqlWallProvider();
  
      public static final int COUNT = 1000 * 10;
  
      public void test_0() throws Exception {
          String sql = "SELECT t1.department_id, t2.*\n" +
                  "FROM hr_info t1, x2 t2\n" +
                  "WHERE t2.department_id = t1.department_id";
          for (int i = 0; i < 10; ++i) {
              provider.clearCache();
              long startMillis = System.currentTimeMillis();
              perf(sql, 10);
              long millis = System.currentTimeMillis() - startMillis;
              System.out.println("millis : " + millis);
          }
      }
  
      public void perf(final String sql, int threadCount) {
          final CountDownLatch startLatch = new CountDownLatch(1);
          final CountDownLatch latch = new CountDownLatch(threadCount);
          for (int i = 0; i < threadCount; ++i) {
              final int seed = i * 1000 * 1000 * 100;
              Thread thread = new Thread() {
                  public void run() {
                      try {
                          startLatch.await();
                          for (int i = 0; i < COUNT; ++i) {
                              int id = seed + i;
                              String text = sql + " AND FID = " + id;
                              provider.check(text);
                          }
                      } catch (InterruptedException e) {
                          e.printStackTrace();
                      } finally {
                          latch.countDown();
                      }
                  }
              };
              thread.setName("perf-" + i);
              thread.start();
          }
  
          startLatch.countDown();
  
          try {
              latch.await();
          } catch (InterruptedException e) {
              e.printStackTrace();
          }
  
      }
  }
  