com.github.ambry.clustermap

Class HelixClusterSpectator

java.lang.Object

com.github.ambry.clustermap.HelixClusterSpectator

All Implemented Interfaces:

com.github.ambry.clustermap.ClusterSpectator, org.apache.helix.api.listeners.InstanceConfigChangeListener, org.apache.helix.api.listeners.LiveInstanceChangeListener

public class HelixClusterSpectator
extends java.lang.Object
implements com.github.ambry.clustermap.ClusterSpectator

Spectator for vcr helix cluster.

Constructor Summary

Constructors

Constructor and Description
HelixClusterSpectator(com.github.ambry.config.CloudConfig cloudConfig, com.github.ambry.config.ClusterMapConfig clusterMapConfig) Constructor for HelixClusterSpectator.

Method Summary

Modifier and Type	Method and Description
void	onInstanceConfigChange(java.util.List<org.apache.helix.model.InstanceConfig> instanceConfigs, org.apache.helix.NotificationContext context)
void	onLiveInstanceChange(java.util.List<org.apache.helix.model.LiveInstance> liveInstances, org.apache.helix.NotificationContext changeContext)
void	registerInstanceConfigChangeListener(org.apache.helix.api.listeners.InstanceConfigChangeListener instanceConfigChangeListener)
void	registerLiveInstanceChangeListener(org.apache.helix.api.listeners.LiveInstanceChangeListener liveInstanceChangeListener)
void	spectate()

Methods inherited from class java.lang.Object

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

Constructor Detail

HelixClusterSpectator

public HelixClusterSpectator(com.github.ambry.config.CloudConfig cloudConfig,
                             com.github.ambry.config.ClusterMapConfig clusterMapConfig)

Constructor for HelixClusterSpectator.

Parameters:

cloudConfig - Cluster config of vcr.

clusterMapConfig - Cluster Map config.

Method Detail

spectate

public void spectate()
              throws java.lang.Exception

Specified by:

spectate in interface com.github.ambry.clustermap.ClusterSpectator

Throws:

java.lang.Exception

onInstanceConfigChange

public void onInstanceConfigChange(java.util.List<org.apache.helix.model.InstanceConfig> instanceConfigs,
                                   org.apache.helix.NotificationContext context)

Specified by:

onInstanceConfigChange in interface org.apache.helix.api.listeners.InstanceConfigChangeListener

onLiveInstanceChange

public void onLiveInstanceChange(java.util.List<org.apache.helix.model.LiveInstance> liveInstances,
                                 org.apache.helix.NotificationContext changeContext)

Specified by:

onLiveInstanceChange in interface org.apache.helix.api.listeners.LiveInstanceChangeListener

registerInstanceConfigChangeListener

public void registerInstanceConfigChangeListener(org.apache.helix.api.listeners.InstanceConfigChangeListener instanceConfigChangeListener)

Specified by:

registerInstanceConfigChangeListener in interface com.github.ambry.clustermap.ClusterSpectator

registerLiveInstanceChangeListener

public void registerLiveInstanceChangeListener(org.apache.helix.api.listeners.LiveInstanceChangeListener liveInstanceChangeListener)

Specified by:

registerLiveInstanceChangeListener in interface com.github.ambry.clustermap.ClusterSpectator