org.neo4j.kernel.ha.cluster.modeswitch

Class HighAvailabilityModeSwitcher

java.lang.Object

org.neo4j.kernel.ha.cluster.modeswitch.HighAvailabilityModeSwitcher

All Implemented Interfaces:

org.neo4j.cluster.BindingListener, HighAvailabilityMemberListener, org.neo4j.kernel.lifecycle.Lifecycle

public class HighAvailabilityModeSwitcher
extends Object
implements HighAvailabilityMemberListener, org.neo4j.cluster.BindingListener, org.neo4j.kernel.lifecycle.Lifecycle

Performs the internal switches in various services from pending to slave/master, by listening for HighAvailabilityMemberChangeEvents. When finished it will invoke ClusterMemberAvailability.memberIsAvailable(String, URI, StoreId) to announce it's new status to the cluster.

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.kernel.ha.cluster.HighAvailabilityMemberListener

HighAvailabilityMemberListener.Adapter

Nested classes/interfaces inherited from interface org.neo4j.kernel.lifecycle.Lifecycle

org.neo4j.kernel.lifecycle.Lifecycle.Delegate

Field Summary

Fields

Modifier and Type	Field and Description
static String	INADDR_ANY
static String	MASTER
static String	SLAVE
static String	UNKNOWN

Constructor Summary

Constructors

Constructor and Description

HighAvailabilityModeSwitcher(SwitchToSlave switchToSlave, SwitchToMaster switchToMaster, org.neo4j.cluster.protocol.election.Election election, org.neo4j.cluster.member.ClusterMemberAvailability clusterMemberAvailability, org.neo4j.cluster.client.ClusterClient clusterClient, Supplier<org.neo4j.kernel.impl.store.StoreId> storeIdSupplier, org.neo4j.cluster.InstanceId instanceId, ComponentSwitcher componentSwitcher, org.neo4j.kernel.impl.transaction.state.DataSourceManager neoStoreDataSourceSupplier, org.neo4j.kernel.impl.logging.LogService logService)

Method Summary

Modifier and Type	Method and Description
void	forceElections()
static org.neo4j.cluster.InstanceId	getServerId(URI haUri)
void	init()
void	instanceStops(HighAvailabilityMemberChangeEvent event)
void	listeningAt(URI myUri)
void	masterIsAvailable(HighAvailabilityMemberChangeEvent event)
void	masterIsElected(HighAvailabilityMemberChangeEvent event)
void	shutdown()
void	slaveIsAvailable(HighAvailabilityMemberChangeEvent event)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

MASTER

public static final String MASTER

See Also:

Constant Field Values

SLAVE

public static final String SLAVE

See Also:

Constant Field Values

UNKNOWN

public static final String UNKNOWN

See Also:

Constant Field Values

INADDR_ANY

public static final String INADDR_ANY

See Also:

Constant Field Values

Constructor Detail

HighAvailabilityModeSwitcher

public HighAvailabilityModeSwitcher(SwitchToSlave switchToSlave,
                                    SwitchToMaster switchToMaster,
                                    org.neo4j.cluster.protocol.election.Election election,
                                    org.neo4j.cluster.member.ClusterMemberAvailability clusterMemberAvailability,
                                    org.neo4j.cluster.client.ClusterClient clusterClient,
                                    Supplier<org.neo4j.kernel.impl.store.StoreId> storeIdSupplier,
                                    org.neo4j.cluster.InstanceId instanceId,
                                    ComponentSwitcher componentSwitcher,
                                    org.neo4j.kernel.impl.transaction.state.DataSourceManager neoStoreDataSourceSupplier,
                                    org.neo4j.kernel.impl.logging.LogService logService)

Method Detail

getServerId

public static org.neo4j.cluster.InstanceId getServerId(URI haUri)

listeningAt

public void listeningAt(URI myUri)

Specified by:

listeningAt in interface org.neo4j.cluster.BindingListener

init

public void init()
          throws Throwable

Specified by:

init in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

start

public void start()
           throws Throwable

Specified by:

start in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

stop

public void stop()
          throws Throwable

Specified by:

stop in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

shutdown

public void shutdown()
              throws Throwable

Specified by:

shutdown in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

masterIsElected

public void masterIsElected(HighAvailabilityMemberChangeEvent event)

Specified by:

masterIsElected in interface HighAvailabilityMemberListener

masterIsAvailable

public void masterIsAvailable(HighAvailabilityMemberChangeEvent event)

Specified by:

masterIsAvailable in interface HighAvailabilityMemberListener

slaveIsAvailable

public void slaveIsAvailable(HighAvailabilityMemberChangeEvent event)

Specified by:

slaveIsAvailable in interface HighAvailabilityMemberListener

instanceStops

public void instanceStops(HighAvailabilityMemberChangeEvent event)

Specified by:

instanceStops in interface HighAvailabilityMemberListener

forceElections

public void forceElections()