org.apache.activemq.artemis.core.server.impl

Class AnyLiveNodeLocatorForReplication

java.lang.Object

org.apache.activemq.artemis.core.server.LiveNodeLocator

org.apache.activemq.artemis.core.server.impl.AnyLiveNodeLocatorForReplication

All Implemented Interfaces:

ClusterTopologyListener

public class AnyLiveNodeLocatorForReplication
extends LiveNodeLocator

This implementation looks for any available live node, once tried with no success it is marked as tried and the next available is used.

Constructor Summary

Constructors

Constructor and Description
AnyLiveNodeLocatorForReplication(SharedNothingBackupQuorum backupQuorum, ActiveMQServerImpl server)

Method Summary

Modifier and Type	Method and Description
Pair<TransportConfiguration,TransportConfiguration>	getLiveConfiguration() Returns the current connector
String	getNodeID() Returns the node id for the current connector
void	locateNode() Locates a possible live server in a cluster
void	locateNode(long timeout) Locates a possible live server in a cluster with a timeout
void	nodeDown(long eventUID, String nodeID) if a node goes down we try all the connectors again as one may now be available for replication
void	nodeUP(TopologyMember topologyMember, boolean last) Triggered when a node joins the cluster.
void	notifyRegistrationFailed(boolean alreadyReplicating) tells the locator the the current connector has failed.

Methods inherited from class org.apache.activemq.artemis.core.server.LiveNodeLocator

connectToCluster

Methods inherited from class java.lang.Object

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

Constructor Detail

AnyLiveNodeLocatorForReplication

public AnyLiveNodeLocatorForReplication(SharedNothingBackupQuorum backupQuorum,
                                        ActiveMQServerImpl server)

Method Detail

locateNode

public void locateNode()
                throws ActiveMQException

Description copied from class: LiveNodeLocator

Locates a possible live server in a cluster

Specified by:

locateNode in class LiveNodeLocator

Throws:

ActiveMQException

locateNode

public void locateNode(long timeout)
                throws ActiveMQException

Description copied from class: LiveNodeLocator

Locates a possible live server in a cluster with a timeout

Specified by:

locateNode in class LiveNodeLocator

Throws:

ActiveMQException

nodeUP

public void nodeUP(TopologyMember topologyMember,
                   boolean last)

Description copied from interface: ClusterTopologyListener

Triggered when a node joins the cluster.

last - if the whole cluster topology is being transmitted (after adding the listener to the cluster connection) this parameter will be true for the last topology member.

nodeDown

public void nodeDown(long eventUID,
                     String nodeID)

if a node goes down we try all the connectors again as one may now be available for replication

TODO: there will be a better way to do this by finding which nodes backup has gone down.

nodeID - the id of the node leaving the cluster

getNodeID

public String getNodeID()

Description copied from class: LiveNodeLocator

Returns the node id for the current connector

Specified by:

getNodeID in class LiveNodeLocator

getLiveConfiguration

public Pair<TransportConfiguration,TransportConfiguration> getLiveConfiguration()

Description copied from class: LiveNodeLocator

Returns the current connector

Specified by:

getLiveConfiguration in class LiveNodeLocator

notifyRegistrationFailed

public void notifyRegistrationFailed(boolean alreadyReplicating)

Description copied from class: LiveNodeLocator

tells the locator the the current connector has failed.

Overrides:

notifyRegistrationFailed in class LiveNodeLocator