package org.apache.helix.recipes.rabbitmq;
/*
* 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
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*/
import org.apache.helix.manager.zk.ZKHelixAdmin;
import org.apache.helix.manager.zk.ZNRecordSerializer;
import org.apache.helix.manager.zk.ZkClient;
import org.apache.helix.model.IdealState.IdealStateModeProperty;
import org.apache.helix.model.StateModelDefinition;
import org.apache.helix.tools.StateModelConfigGenerator;
public class SetupConsumerCluster
{
public static final String DEFAULT_CLUSTER_NAME = "rabbitmq-consumer-cluster";
public static final String DEFAULT_RESOURCE_NAME = "topic";
public static final int DEFAULT_PARTITION_NUMBER = 6;
public static final String DEFAULT_STATE_MODEL = "OnlineOffline";
public static void main(String[] args)
{
if (args.length < 1)
{
System.err.println("USAGE: java SetupConsumerCluster zookeeperAddress (e.g. localhost:2181)");
System.exit(1);
}
final String zkAddr = args[0];
final String clusterName = DEFAULT_CLUSTER_NAME;
ZkClient zkclient = null;
try
{
zkclient = new ZkClient(zkAddr, ZkClient.DEFAULT_SESSION_TIMEOUT,
ZkClient.DEFAULT_CONNECTION_TIMEOUT, new ZNRecordSerializer());
ZKHelixAdmin admin = new ZKHelixAdmin(zkclient);
// add cluster
admin.addCluster(clusterName, true);
// add state model definition
StateModelConfigGenerator generator = new StateModelConfigGenerator();
admin.addStateModelDef(clusterName, DEFAULT_STATE_MODEL,
new StateModelDefinition(generator.generateConfigForOnlineOffline()));
// add resource "topic" which has 6 partitions
String resourceName = DEFAULT_RESOURCE_NAME;
admin.addResource(clusterName, resourceName, DEFAULT_PARTITION_NUMBER, DEFAULT_STATE_MODEL,
IdealStateModeProperty.AUTO_REBALANCE.toString());
admin.rebalance(clusterName, resourceName, 1);
} finally
{
if (zkclient != null)
{
zkclient.close();
}
}
}
}