package org.apache.helix.integration;
   
   /*
    * 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.
   */
  
  import java.util.Date;
  
  import org.apache.helix.TestHelper;
  import org.apache.helix.manager.zk.ZNRecordSerializer;
  import org.apache.helix.manager.zk.ZkClient;
  import org.apache.helix.tools.ClusterSetup;
  import org.apache.log4j.Logger;
  import org.testng.annotations.AfterClass;
  import org.testng.annotations.BeforeClass;
  import org.testng.annotations.Test;
  
  
  public class TestCustomIdealState extends ZkIntegrationTestBase
  {
    private static Logger LOG = Logger.getLogger(TestCustomIdealState.class);
    ZkClient _zkClient;
  
    @BeforeClass
    public void beforeClass() throws Exception
    {
      _zkClient = new ZkClient(ZK_ADDR);
      _zkClient.setZkSerializer(new ZNRecordSerializer());
    }
  
    @AfterClass
    public void afterClass()
    {
      _zkClient.close();
    }
  
    @Test
    public void testBasic() throws Exception
    {
  
      int numResources = 2;
      int numPartitionsPerResource = 100;
      int numInstance = 5;
      int replica = 3;
  
      String uniqClusterName = "TestCustomIS_" + "rg" + numResources + "_p" + numPartitionsPerResource
          + "_n" + numInstance + "_r" + replica + "_basic";
      System.out.println("START " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
  
      TestDriver.setupClusterWithoutRebalance(uniqClusterName, ZK_ADDR, numResources,
          numPartitionsPerResource, numInstance, replica);
  
      for (int i = 0; i < numInstance; i++)
      {
        TestDriver.startDummyParticipant(uniqClusterName, i);
      }
      TestDriver.startController(uniqClusterName);
  
      TestDriver.setIdealState(uniqClusterName, 2000, 50);
      TestDriver.verifyCluster(uniqClusterName, 3000, 50 * 1000);
  
      TestDriver.stopCluster(uniqClusterName);
  
      System.out.println("STOP " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
    }
  
    @Test
    public void testNonAliveInstances() throws Exception
    {
      int numResources = 2;
      int numPartitionsPerResource = 50;
      int numInstance = 5;
      int replica = 3;
  
      String uniqClusterName = "TestCustomIS_" + "rg" + numResources + "_p" + numPartitionsPerResource
          + "_n" + numInstance + "_r" + replica + "_nonalive";
      System.out.println("START " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
  
      TestDriver.setupClusterWithoutRebalance(uniqClusterName, ZK_ADDR, numResources,
          numPartitionsPerResource, numInstance, replica);
  
      for (int i = 0; i < numInstance / 2; i++)
      {
        TestDriver.startDummyParticipant(uniqClusterName, i);
     }
 
     TestDriver.startController(uniqClusterName);
     TestDriver.setIdealState(uniqClusterName, 0, 100);
 
     // wait some time for customized ideal state being populated
     Thread.sleep(1000);
 
     // start the rest of participants after ideal state is set
     for (int i = numInstance / 2; i < numInstance; i++)
     {
       TestDriver.startDummyParticipant(uniqClusterName, i);
     }
 
     TestDriver.verifyCluster(uniqClusterName, 4000, 50 * 1000);
 
     TestDriver.stopCluster(uniqClusterName);
 
     System.out.println("STOP " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
 
   }
 
   @Test()
   public void testDrop() throws Exception
   {
     int numResources = 2;
     int numPartitionsPerResource = 50;
     int numInstance = 5;
     int replica = 3;
 
     String uniqClusterName = "TestCustomIS_" + "rg" + numResources + "_p" + numPartitionsPerResource
         + "_n" + numInstance + "_r" + replica + "_drop";
 
     System.out.println("START " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
     TestDriver.setupClusterWithoutRebalance(uniqClusterName, ZK_ADDR, numResources,
         numPartitionsPerResource, numInstance, replica);
 
     for (int i = 0; i < numInstance; i++)
     {
       TestDriver.startDummyParticipant(uniqClusterName, i);
     }
     TestDriver.startController(uniqClusterName);
     TestDriver.setIdealState(uniqClusterName, 2000, 50);
     TestDriver.verifyCluster(uniqClusterName, 3000, 50 * 1000);
 
     // drop resource group
     ClusterSetup setup = new ClusterSetup(ZK_ADDR);
     setup.dropResourceFromCluster(uniqClusterName, "TestDB0");
 
     TestHelper.verifyWithTimeout("verifyEmptyCurStateAndExtView", 30 * 1000, uniqClusterName, "TestDB0",
         TestHelper.<String> setOf("localhost_12918", "localhost_12919", "localhost_12920",
             "localhost_12921", "localhost_12922"), ZK_ADDR);
 
     TestDriver.stopCluster(uniqClusterName);
     System.out.println("STOP " + uniqClusterName + " at " + new Date(System.currentTimeMillis()));
   }
 
   // TODO add a test case that verify (in case of node failure) best possible
   // state is a subset of ideal state
 }