/**
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.hadoop.hbase.test;
  
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.hbase.HBaseConfiguration;
  import org.apache.hadoop.hbase.IntegrationTestingUtility;
  import org.apache.hadoop.hbase.chaos.util.ChaosMonkeyRunner;
  import org.apache.hadoop.hbase.chaos.util.Monkeys;
  import org.apache.hadoop.hbase.testclassification.IntegrationTests;
  import org.apache.hadoop.util.ToolRunner;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  /**
   * This is an integration test for showing a simple usage of how to use {@link Monkeys}
   * to control {@link ChaosMonkeyRunner}.
   */
  @Category(IntegrationTests.class)
  public class IntegrationTestMonkeys extends ChaosMonkeyRunner {
    private static final int RUN_SECS = 15 * 1000;
    private static final int WAIT_SECS = 10 * 1000;
  
    @Override
    protected int doWork() throws Exception {
      super.setUpCluster();
      runMonkeys();
      return 0;
    }
  
    @Test
    public void runMonkeys() throws Exception {
      try (Monkeys monkeys = new Monkeys()) {
        for (int i = 0; i < 2; i++) {
          monkeys.startChaos();
          Thread.sleep(RUN_SECS);
          monkeys.stopChaos();
          Thread.sleep(WAIT_SECS);
        }
      }
    }
  
    public static void main(String[] args) throws Exception {
      // Run chaos monkeys 15 seconds, then stop them.
      // After 10 seconds, run chaos monkeys again.
      Configuration conf = HBaseConfiguration.create();
      IntegrationTestingUtility.setUseDistributedCluster(conf);
      int exitCode = ToolRunner.run(conf, new IntegrationTestMonkeys(), args);
      System.exit(exitCode);
    }
  }