com.avaje.ebeaninternal.server.cluster.mcast

Class McastClusterManager

java.lang.Object

com.avaje.ebeaninternal.server.cluster.mcast.McastClusterManager

All Implemented Interfaces:

ClusterBroadcast, Runnable

public class McastClusterManager
extends Object
implements ClusterBroadcast, Runnable

Overall Manager of the Multicast Cluster communication for this instance.

McastListener, McastSender and McastPacketControl are the main helpers to this object.

This Manager (thread) periodically processes the ACK, Re-send and Control messages. The McastListener is handling all the incoming packets and informs this manager when interesting packets need to be processed by the Manager.

Other threads call broadcast(RemoteTransactionEvent) to send transaction even information.

Author:

rbygrave

Constructor Summary

Constructors

Constructor and Description
McastClusterManager()

Method Summary

Methods

Modifier and Type	Method and Description
void	broadcast(RemoteTransactionEvent remoteTransEvent) Send the remoteTransEvent to all the other members of the cluster.
protected void	fromListener(long newMinAcked, MessageControl msgControl, MessageResend msgResend, int groupSize, long totalPacketsReceived, long totalBytesReceived, long totalTxnEventsReceived) McastListener calls this method to get the manager to process messages.
protected void	fromListenerTimeoutNoMembers() The McastListener tells us there are no other members of the cluster that are currently online.
protected SpiEbeanServer	getEbeanServer(String serverName)
long	getManagerSleepMillis() Return the frequency by which this manager will send out ACKs.
McastStatus	getStatus(boolean reset) Get the overall status and activity of this cluster node.
void	run() Periodically send out Ack, Re-send and Control messages.
void	setManagerSleepMillis(long managerSleepMillis) Effectively set the frequency by which this manager will send out ACKs.
void	shutdown() Say 'Leaving' and shutdown.
void	startup(ClusterManager clusterManager) Startup listeners and 'Join'.

Methods inherited from class java.lang.Object

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

Constructor Detail

McastClusterManager

public McastClusterManager()

Method Detail

fromListenerTimeoutNoMembers

protected void fromListenerTimeoutNoMembers()

The McastListener tells us there are no other members of the cluster that are currently online.

fromListener

protected void fromListener(long newMinAcked,
                MessageControl msgControl,
                MessageResend msgResend,
                int groupSize,
                long totalPacketsReceived,
                long totalBytesReceived,
                long totalTxnEventsReceived)

McastListener calls this method to get the manager to process messages.

Parameters:

newMinAcked - the minAcked packetId according to the listener

msgControl - a control message to process

msgResend - a Please re-send message to process

groupSize - the number of other online members

getStatus

public McastStatus getStatus(boolean reset)

Get the overall status and activity of this cluster node.

run

public void run()

Periodically send out Ack, Re-send and Control messages.

Specified by:

run in interface Runnable

shutdown

public void shutdown()

Say 'Leaving' and shutdown.

Specified by:

shutdown in interface ClusterBroadcast

startup

public void startup(ClusterManager clusterManager)

Startup listeners and 'Join'.

Specified by:

startup in interface ClusterBroadcast

getEbeanServer

protected SpiEbeanServer getEbeanServer(String serverName)

broadcast

public void broadcast(RemoteTransactionEvent remoteTransEvent)

Send the remoteTransEvent to all the other members of the cluster.

Specified by:

broadcast in interface ClusterBroadcast

setManagerSleepMillis

public void setManagerSleepMillis(long managerSleepMillis)

Effectively set the frequency by which this manager will send out ACKs.

getManagerSleepMillis

public long getManagerSleepMillis()

Return the frequency by which this manager will send out ACKs.