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.ArrayList;
  import java.util.Date;
  import java.util.List;
  
  import org.apache.helix.PropertyPathConfig;
  import org.apache.helix.PropertyType;
  import org.apache.helix.TestHelper;
  import org.apache.helix.ZNRecord;
  import org.apache.helix.controller.HelixControllerMain;
  import org.apache.helix.mock.participant.MockParticipant;
  import org.apache.helix.model.IdealState;
  import org.apache.helix.tools.ClusterStateVerifier;
  import org.apache.helix.tools.DefaultIdealStateCalculator;
  import org.apache.helix.tools.ClusterStateVerifier.BestPossAndExtViewZkVerifier;
  import org.testng.Assert;
  import org.testng.annotations.Test;
  
  
  public class TestAutoIsWithEmptyMap extends ZkIntegrationTestBase
  {
    @Test
    public void testAutoIsWithEmptyMap() throws Exception
    {
      String className = TestHelper.getTestClassName();
      String methodName = TestHelper.getTestMethodName();
      String clusterName = className + "_" + methodName;
      System.out.println("START " + clusterName + " at " + new Date(System.currentTimeMillis()));
  
      TestHelper.setupCluster(clusterName, ZK_ADDR, 12918, // participant port
          "localhost", // participant name prefix
          "TestDB", // resource name prefix
          1, // resources
          10, // partitions per resource
          5, // number of nodes
          3, // replicas
          "LeaderStandby", false); // do not rebalance
  
      // calculate and set custom ideal state
      String idealPath = PropertyPathConfig.getPath(PropertyType.IDEALSTATES, clusterName, "TestDB0");
      ZNRecord curIdealState = _gZkClient.readData(idealPath);
  
      List<String> instanceNames = new ArrayList<String>(5);
      for (int i = 0; i < 5; i++)
      {
        int port = 12918 + i;
        instanceNames.add("localhost_" + port);
      }
      ZNRecord idealState = DefaultIdealStateCalculator.calculateIdealState(instanceNames, 10,
          2, "TestDB0", "LEADER", "STANDBY");
      // System.out.println(idealState);
      // curIdealState.setSimpleField(IdealState.IdealStateProperty.IDEAL_STATE_MODE.toString(),
      // "CUSTOMIZED");
      curIdealState.setSimpleField(IdealState.IdealStateProperty.REPLICAS.toString(), "3");
  
      curIdealState.setListFields(idealState.getListFields());
      _gZkClient.writeData(idealPath, curIdealState);
  
      // start controller
      TestHelper
          .startController(clusterName, "controller_0", ZK_ADDR, HelixControllerMain.STANDALONE);
  
      // start participants
      MockParticipant[] participants = new MockParticipant[5];
      for (int i = 0; i < 5; i++)
      {
        String instanceName = "localhost_" + (12918 + i);
  
        participants[i] = new MockParticipant(clusterName, instanceName, ZK_ADDR, null);
        participants[i].syncStart();
      }
  
      boolean result = ClusterStateVerifier.verifyByZkCallback(new BestPossAndExtViewZkVerifier(
          ZK_ADDR, clusterName));
      Assert.assertTrue(result);
  
      // clean up
      for (int i = 0; i < 5; i++)
      {
       participants[i].syncStop();
     }
 
     System.out.println("END " + clusterName + " at " + new Date(System.currentTimeMillis()));
 
   }
 }