com.cloudhopper.mq.broker

Class DistributedQueueManager

java.lang.Object

com.cloudhopper.mq.broker.DistributedQueueManager

All Implemented Interfaces:

DistributedQueueManagerMBean, DistributedQueueStateListener, QueueManagerListener

public class DistributedQueueManager
extends Object
implements QueueManagerListener, DistributedQueueStateListener, DistributedQueueManagerMBean

Author:

joelauer

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DistributedQueueManager.Event

Field Summary

Fields

Modifier and Type	Field and Description
protected DistributedQueueConfiguration	configuration
protected DistributedQueueState	dqs
protected DelayQueue<DistributedQueueEvent>	events
protected ScheduledThreadPoolExecutor	monitorExecutorService
protected QueueManager	queueManager
protected ConcurrentHashMap<String,LocalToRemoteQueueProcessor>	queueProcessors
protected ConcurrentHashMap<String,RemoteBrokerMonitor>	remoteBrokerMonitors
protected ExecutorService	remotingExecutorService
protected RemoteQueueTransferScheduler	remotingScheduler
protected AtomicBoolean	started

Constructor Summary

Constructors

Constructor and Description
DistributedQueueManager(DistributedQueueConfiguration configuration, QueueManager queueManager)

Method Summary

Methods

Modifier and Type	Method and Description
Integer	getAreaId()
DistributedQueueConfiguration	getConfiguration()
DistributedQueueState	getDistributedQueueState()
DelayQueue	getEventQueue()
int	getEventQueueSize()
String	getGroupName()
String[]	getLocalToRemoteQueueProcessorNames()
int	getLocalToRemoteQueueProcessorSize()
int	getMonitorThreadsSize()
QueueManager	getQueueManager()
ConcurrentHashMap<String,LocalToRemoteQueueProcessor>	getQueueProcessors()
String[]	getRemoteBrokerMonitorNames()
ConcurrentHashMap<String,RemoteBrokerMonitor>	getRemoteBrokerMonitors()
long	getRemotingTakeNulls()
long	getRemotingTakeTimeouts()
int	getTransferThreadsSize()
long	incrementRemotingTakeNulls()
long	incrementRemotingTakeTimeouts()
boolean	isEventProcessorAlive()
boolean	isMonitorThreadPoolAlive()
boolean	isStarted()
boolean	isStopped()
boolean	isTransferThreadPoolAlive()
void	notifyAllQueueConsumersStopped(Queue queue)
void	notifyAtLeastOneQueueConsumerStarted(Queue queue)
void	notifyQueueCreated(Queue queue)
void	notifyQueueDestroyed(Queue queue)
void	notifyRemoteBrokerAdded(RemoteBrokerInfo bi) Triggered when a RemoteBroker was added to the DistributedQueueState.
void	notifyRemoteBrokerRemoved(RemoteBrokerInfo bi) Triggered when a RemoteBroker was remove from the DistributedQueueState.
void	notifyRemoteBrokerStateChanged(RemoteBrokerInfo bi, int state) Triggered when the state of a RemoteBroker has changed in the DistributedQueueState.
void	notifyRemoteQueueAdded(RemoteQueueInfo qi) Triggered when a RemoteQueue was added to the DistributedQueueState.
void	notifyRemoteQueueAttributesChanged(RemoteQueueInfo qi) Triggered when just the internal attributes of a RemoteQueue has changed, but not enough to affect the overall state of the RemoteQueue.
void	notifyRemoteQueueRemoved(RemoteQueueInfo qi) Triggered when a RemoteQueue was removed from the DistributedQueueState.
void	notifyRemoteQueueStateChanged(RemoteQueueInfo qi, int state) Triggered when the state of a RemoteQueue has changed in the DistributedQueueState.
protected void	registerMBean()
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

started

protected final AtomicBoolean started

configuration

protected final DistributedQueueConfiguration configuration

queueManager

protected final QueueManager queueManager

dqs

protected final DistributedQueueState dqs

events

protected final DelayQueue<DistributedQueueEvent> events

remotingExecutorService

protected ExecutorService remotingExecutorService

remotingScheduler

protected RemoteQueueTransferScheduler remotingScheduler

monitorExecutorService

protected ScheduledThreadPoolExecutor monitorExecutorService

remoteBrokerMonitors

protected final ConcurrentHashMap<String,RemoteBrokerMonitor> remoteBrokerMonitors

queueProcessors

protected final ConcurrentHashMap<String,LocalToRemoteQueueProcessor> queueProcessors

Constructor Detail

DistributedQueueManager

public DistributedQueueManager(DistributedQueueConfiguration configuration,
                       QueueManager queueManager)

Method Detail

registerMBean

protected void registerMBean()

getConfiguration

public DistributedQueueConfiguration getConfiguration()

getQueueManager

public QueueManager getQueueManager()

getDistributedQueueState

public DistributedQueueState getDistributedQueueState()

getEventQueue

public DelayQueue getEventQueue()

getRemoteBrokerMonitors

public ConcurrentHashMap<String,RemoteBrokerMonitor> getRemoteBrokerMonitors()

getQueueProcessors

public ConcurrentHashMap<String,LocalToRemoteQueueProcessor> getQueueProcessors()

getAreaId

public Integer getAreaId()

Specified by:

getAreaId in interface DistributedQueueManagerMBean

getGroupName

public String getGroupName()

Specified by:

getGroupName in interface DistributedQueueManagerMBean

getRemoteBrokerMonitorNames

public String[] getRemoteBrokerMonitorNames()

Specified by:

getRemoteBrokerMonitorNames in interface DistributedQueueManagerMBean

getEventQueueSize

public int getEventQueueSize()

Specified by:

getEventQueueSize in interface DistributedQueueManagerMBean

getLocalToRemoteQueueProcessorSize

public int getLocalToRemoteQueueProcessorSize()

Specified by:

getLocalToRemoteQueueProcessorSize in interface DistributedQueueManagerMBean

getLocalToRemoteQueueProcessorNames

public String[] getLocalToRemoteQueueProcessorNames()

Specified by:

getLocalToRemoteQueueProcessorNames in interface DistributedQueueManagerMBean

isStarted

public boolean isStarted()

Specified by:

isStarted in interface DistributedQueueManagerMBean

isStopped

public boolean isStopped()

Specified by:

isStopped in interface DistributedQueueManagerMBean

isEventProcessorAlive

public boolean isEventProcessorAlive()

Specified by:

isEventProcessorAlive in interface DistributedQueueManagerMBean

isMonitorThreadPoolAlive

public boolean isMonitorThreadPoolAlive()

Specified by:

isMonitorThreadPoolAlive in interface DistributedQueueManagerMBean

isTransferThreadPoolAlive

public boolean isTransferThreadPoolAlive()

Specified by:

isTransferThreadPoolAlive in interface DistributedQueueManagerMBean

getMonitorThreadsSize

public int getMonitorThreadsSize()

Specified by:

getMonitorThreadsSize in interface DistributedQueueManagerMBean

getTransferThreadsSize

public int getTransferThreadsSize()

Specified by:

getTransferThreadsSize in interface DistributedQueueManagerMBean

getRemotingTakeTimeouts

public long getRemotingTakeTimeouts()

Specified by:

getRemotingTakeTimeouts in interface DistributedQueueManagerMBean

incrementRemotingTakeTimeouts

public long incrementRemotingTakeTimeouts()

getRemotingTakeNulls

public long getRemotingTakeNulls()

Specified by:

getRemotingTakeNulls in interface DistributedQueueManagerMBean

incrementRemotingTakeNulls

public long incrementRemotingTakeNulls()

start

public void start()

Specified by:

start in interface DistributedQueueManagerMBean

stop

public void stop()

Specified by:

stop in interface DistributedQueueManagerMBean

notifyQueueCreated

public void notifyQueueCreated(Queue queue)

Specified by:

notifyQueueCreated in interface QueueManagerListener

notifyQueueDestroyed

public void notifyQueueDestroyed(Queue queue)

Specified by:

notifyQueueDestroyed in interface QueueManagerListener

notifyAtLeastOneQueueConsumerStarted

public void notifyAtLeastOneQueueConsumerStarted(Queue queue)

Specified by:

notifyAtLeastOneQueueConsumerStarted in interface QueueManagerListener

notifyAllQueueConsumersStopped

public void notifyAllQueueConsumersStopped(Queue queue)

Specified by:

notifyAllQueueConsumersStopped in interface QueueManagerListener

notifyRemoteBrokerAdded

public void notifyRemoteBrokerAdded(RemoteBrokerInfo bi)

Description copied from interface: DistributedQueueStateListener

Triggered when a RemoteBroker was added to the DistributedQueueState.

Specified by:

notifyRemoteBrokerAdded in interface DistributedQueueStateListener

Parameters:

bi - The RemoteBroker that was added

notifyRemoteBrokerRemoved

public void notifyRemoteBrokerRemoved(RemoteBrokerInfo bi)

Description copied from interface: DistributedQueueStateListener

Triggered when a RemoteBroker was remove from the DistributedQueueState.

Specified by:

notifyRemoteBrokerRemoved in interface DistributedQueueStateListener

Parameters:

bi - The RemoteBroker that was removed

notifyRemoteBrokerStateChanged

public void notifyRemoteBrokerStateChanged(RemoteBrokerInfo bi,
                                  int state)

Description copied from interface: DistributedQueueStateListener

Triggered when the state of a RemoteBroker has changed in the DistributedQueueState. This event will triggered AFTER any RemoteQueues this RemoteBroker was associated with are triggered first. For example, if the RemoteBroker goes down (not available) and its the only RemoteBroker that can transfer items to a RemoteQueue, then the RemoteQueueStateChanged event will occur BEFORE this method is triggered.

Specified by:

notifyRemoteBrokerStateChanged in interface DistributedQueueStateListener

Parameters:

bi - The RemoteBroker whose state changed

notifyRemoteQueueAdded

public void notifyRemoteQueueAdded(RemoteQueueInfo qi)

Description copied from interface: DistributedQueueStateListener

Triggered when a RemoteQueue was added to the DistributedQueueState. If the RemoteQueue was added as a result of state change (such as it becoming available), then this event should happen BEFORE the notifyRemoteQueueStateChanged event occurs.

Specified by:

notifyRemoteQueueAdded in interface DistributedQueueStateListener

Parameters:

qi - The RemoteQueue that was added

notifyRemoteQueueRemoved

public void notifyRemoteQueueRemoved(RemoteQueueInfo qi)

Description copied from interface: DistributedQueueStateListener

Triggered when a RemoteQueue was removed from the DistributedQueueState.

Specified by:

notifyRemoteQueueRemoved in interface DistributedQueueStateListener

Parameters:

qi - The RemoteQueue that was removed

notifyRemoteQueueStateChanged

public void notifyRemoteQueueStateChanged(RemoteQueueInfo qi,
                                 int state)

Description copied from interface: DistributedQueueStateListener

Triggered when the state of a RemoteQueue has changed in the DistributedQueueState. This is potentially the most important event to watch for in order to start/stop distributors on a particular local queue.

Specified by:

notifyRemoteQueueStateChanged in interface DistributedQueueStateListener

Parameters:

qi - The RemoteQueue whose state changed

notifyRemoteQueueAttributesChanged

public void notifyRemoteQueueAttributesChanged(RemoteQueueInfo qi)

Description copied from interface: DistributedQueueStateListener

Triggered when just the internal attributes of a RemoteQueue has changed, but not enough to affect the overall state of the RemoteQueue. For example, if there was already a RemoteBroker on the RemoteQueue, but a second one came online. That would trigger this event, but not cause a state change.

Specified by:

notifyRemoteQueueAttributesChanged in interface DistributedQueueStateListener

Parameters:

qi - The RemoteQueue whose attributes changed