helix-core/src/test/java/org/apache/helix/mock/controller/MockControllerProcess.java

package org.apache.helix.mock.controller;

/*
 * 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.io.IOException;
import java.util.ArrayList;

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.databind.JsonMappingException;

public class MockControllerProcess {

  /**
   * @param args
   * @throws IOException
   * @throws JsonMappingException
   * @throws JsonGenerationException
   * @throws InterruptedException
   */
  public static void main(String[] args) throws JsonGenerationException, JsonMappingException,
      InterruptedException, IOException {

    MockController storageController =
        new MockController("cm-instance-0", "localhost:2181", "storage-cluster");
    MockController relayController =
        new MockController("cm-instance-0", "localhost:2181", "relay-cluster");

    ArrayList<String> instanceNames = new ArrayList<String>();
    instanceNames.add("relay0");
    instanceNames.add("relay1");
    instanceNames.add("relay2");
    instanceNames.add("relay3");
    instanceNames.add("relay4");

    relayController.createExternalView(instanceNames, 10, 2, "EspressoDB", 0);

    // Messages to initiate offline->slave->master->slave transitions

    storageController.sendMessage("TestMessageId1", "localhost_8900", "Offline", "Slave",
        "EspressoDB.partition-0", 0);
    Thread.sleep(10000);
    storageController.sendMessage("TestMessageId2", "localhost_8900", "Slave", "Master",
        "EspressoDB.partition-0", 0);
    Thread.sleep(10000);
    storageController.sendMessage("TestMessageId3", "localhost_8900", "Master", "Slave",
        "EspressoDB.partition-0", 0);
    Thread.sleep(10000);

    // Change the external view to trigger the consumer to listen from
    // another relay
    relayController.createExternalView(instanceNames, 10, 2, "EspressoDB", 10);

    storageController.sendMessage("TestMessageId4", "localhost_8900", "Slave", "Offline",
        "EspressoDB.partition-0", 0);
    Thread.sleep(10000);
  }

}