org.neo4j.kernel.ha.cluster.zoo

Class ZooClient

java.lang.Object

org.neo4j.kernel.ha.cluster.zoo.ZooClient

All Implemented Interfaces:

CompatibilityMonitor, Lifecycle

public class ZooClient
extends Object
implements Lifecycle, CompatibilityMonitor

Field Summary

Fields

Modifier and Type	Field and Description
static Machine	NO_MACHINE

Constructor Summary

Constructors

Constructor and Description
ZooClient(org.neo4j.kernel.impl.util.StringLogger stringLogger, Config conf)

Method Summary

Methods

Modifier and Type	Method and Description
void	addCompatibilityModeListener(CompatibilityModeListener listener)
void	addZooListener(ZooListener zooListener)
Machine	getCachedMaster()
String	getClusterServer()
org.neo4j.kernel.impl.nioneo.store.StoreId	getClusterStoreId(org.neo4j.kernel.ha.cluster.zoo.ZooClient.WaitMode mode)
int	getCurrentMasterNotify()
String	getHaServer()
String	getRoot()
org.apache.zookeeper.ZooKeeper	getZooKeeper(boolean sync)
void	init()
String	refreshMasterFromZooKeeper() Tries to discover the master from the zookeeper information.
void	removeCompatibilityModeListener(CompatibilityModeListener listener)
void	shutdown()
void	start()
void	stop()
String	toString()
void	waitForSyncConnected()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NO_MACHINE

public static final Machine NO_MACHINE

Constructor Detail

ZooClient

public ZooClient(org.neo4j.kernel.impl.util.StringLogger stringLogger,
         Config conf)

Method Detail

init

public void init()
          throws Throwable

Specified by:

init in interface Lifecycle

Throws:

Throwable

start

public void start()
           throws Throwable

Specified by:

start in interface Lifecycle

Throws:

Throwable

stop

public void stop()
          throws Throwable

Specified by:

stop in interface Lifecycle

Throws:

Throwable

shutdown

public void shutdown()

Specified by:

shutdown in interface Lifecycle

refreshMasterFromZooKeeper

public String refreshMasterFromZooKeeper()

Tries to discover the master from the zookeeper information. Will return a Pair of a Master and the Machine it resides on. If the new master is different than the current then the current is invalidated and if allowChange is set to true then the a connection to the new master is established otherwise a NO_MASTER is returned.

Returns:

The master URI as a String

getCachedMaster

public Machine getCachedMaster()

getRoot

public String getRoot()

getCurrentMasterNotify

public int getCurrentMasterNotify()

getZooKeeper

public org.apache.zookeeper.ZooKeeper getZooKeeper(boolean sync)

getClusterStoreId

public org.neo4j.kernel.impl.nioneo.store.StoreId getClusterStoreId(org.neo4j.kernel.ha.cluster.zoo.ZooClient.WaitMode mode)

toString

public String toString()

Overrides:

toString in class Object

addZooListener

public void addZooListener(ZooListener zooListener)

addCompatibilityModeListener

public void addCompatibilityModeListener(CompatibilityModeListener listener)

Specified by:

addCompatibilityModeListener in interface CompatibilityMonitor

removeCompatibilityModeListener

public void removeCompatibilityModeListener(CompatibilityModeListener listener)

Specified by:

removeCompatibilityModeListener in interface CompatibilityMonitor

getClusterServer

public String getClusterServer()

getHaServer

public String getHaServer()

waitForSyncConnected

public final void waitForSyncConnected()