org.apache.gobblin.service.modules.utils

Class HelixUtils

java.lang.Object

org.apache.gobblin.service.modules.utils.HelixUtils

@Alpha
public class HelixUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
HelixUtils()

Method Summary

Modifier and Type	Method and Description
static org.apache.helix.HelixManager	buildHelixManager(String helixInstanceName, String helixClusterName, String zkConnectionString) Build a Helix Manager (Helix Controller instance).
static void	createGobblinHelixCluster(String zkConnectionString, String clusterName) Create a Helix cluster for the Gobblin Cluster application.
static void	createGobblinHelixCluster(String zkConnectionString, String clusterName, boolean overwrite) Create a Helix cluster for the Gobblin Cluster application.
static String	getHelixInstanceName(String namePrefix, int instanceId) Get a Helix instance name.
static void	sendUserDefinedMessage(String messageSubType, String messageVal, String messageId, org.apache.helix.InstanceType instanceType, org.apache.helix.HelixManager helixManager, org.slf4j.Logger logger)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HelixUtils

public HelixUtils()

Method Detail

buildHelixManager

public static org.apache.helix.HelixManager buildHelixManager(String helixInstanceName,
                                                              String helixClusterName,
                                                              String zkConnectionString)

Build a Helix Manager (Helix Controller instance).

Parameters:

helixInstanceName - the Helix Instance name.

helixClusterName - the Helix Cluster name.

zkConnectionString - the ZooKeeper connection string.

Returns:

HelixManager

createGobblinHelixCluster

public static void createGobblinHelixCluster(String zkConnectionString,
                                             String clusterName)

Create a Helix cluster for the Gobblin Cluster application.

Parameters:

zkConnectionString - the ZooKeeper connection string

clusterName - the Helix cluster name

createGobblinHelixCluster

public static void createGobblinHelixCluster(String zkConnectionString,
                                             String clusterName,
                                             boolean overwrite)

Create a Helix cluster for the Gobblin Cluster application.

Parameters:

zkConnectionString - the ZooKeeper connection string

clusterName - the Helix cluster name

overwrite - true to overwrite exiting cluster, false to reuse existing cluster

getHelixInstanceName

public static String getHelixInstanceName(String namePrefix,
                                          int instanceId)

Get a Helix instance name.

Parameters:

namePrefix - a prefix of Helix instance names

instanceId - an integer instance ID

Returns:

a Helix instance name that is a concatenation of the given prefix and instance ID

sendUserDefinedMessage

public static void sendUserDefinedMessage(String messageSubType,
                                          String messageVal,
                                          String messageId,
                                          org.apache.helix.InstanceType instanceType,
                                          org.apache.helix.HelixManager helixManager,
                                          org.slf4j.Logger logger)