org.apache.activemq.partition

Class PartitionBroker

java.lang.Object

org.apache.activemq.broker.BrokerFilter

org.apache.activemq.partition.PartitionBroker

All Implemented Interfaces:

Broker, Region, org.apache.activemq.Service

Direct Known Subclasses:

ZooKeeperPartitionBroker

public class PartitionBroker
extends BrokerFilter

A BrokerFilter which partitions client connections over a cluster of brokers. It can use a client identifier like client id, authenticated user name, source ip address or even destination being used by the connection to figure out which is the best broker in the cluster that the connection should be using and then redirects failover clients to that broker.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG
protected ConcurrentHashMap<org.apache.activemq.command.ConnectionId,org.apache.activemq.partition.PartitionBroker.ConnectionMonitor>	monitors
protected PartitionBrokerPlugin	plugin
protected boolean	reloadConfigOnPoll

Fields inherited from class org.apache.activemq.broker.BrokerFilter

next

Constructor Summary

Constructors

Constructor and Description
PartitionBroker(Broker broker, PartitionBrokerPlugin plugin)

Method Summary

Methods

Modifier and Type	Method and Description
void	addConnection(ConnectionContext context, org.apache.activemq.command.ConnectionInfo info)
protected void	checkTarget(org.apache.activemq.partition.PartitionBroker.ConnectionMonitor monitor)
protected Partitioning	getConfig()
protected String	getConnectionString(HashSet<String> ids)
protected Target	getTarget(org.apache.activemq.command.ActiveMQDestination dest)
protected void	monitorWait()
protected void	monitorWakeup()
protected void	onMonitorStart()
protected void	onMonitorStop()
protected Target	pickBestBroker(org.apache.activemq.partition.PartitionBroker.ConnectionMonitor monitor)
protected void	reloadConfiguration()
void	removeConnection(ConnectionContext context, org.apache.activemq.command.ConnectionInfo info, Throwable error)
protected void	runPartitionMonitor()
void	send(ProducerBrokerExchange producerExchange, org.apache.activemq.command.Message messageSend)
void	start()

Methods inherited from class org.apache.activemq.broker.BrokerFilter

acknowledge, addBroker, addConsumer, addDestination, addDestinationInfo, addProducer, addSession, beginTransaction, brokerServiceStarted, commitTransaction, fastProducer, forgetTransaction, gc, getAdaptor, getAdminConnectionContext, getBrokerId, getBrokerName, getBrokerSequenceId, getBrokerService, getClients, getDestinationMap, getDestinationMap, getDestinations, getDestinations, getDurableDestinations, getExecutor, getPeerBrokerInfos, getPreparedTransactions, getRoot, getScheduler, getTempDataStore, getVmConnectorURI, isExpired, isFaultTolerantConfiguration, isFull, isStopped, messageConsumed, messageDelivered, messageDiscarded, messageExpired, messagePull, networkBridgeStarted, networkBridgeStopped, nowMasterBroker, postProcessDispatch, prepareTransaction, preProcessDispatch, processConsumerControl, processDispatchNotification, reapplyInterceptor, removeBroker, removeConsumer, removeDestination, removeDestinationInfo, removeProducer, removeSession, removeSubscription, rollbackTransaction, sendToDeadLetterQueue, setAdminConnectionContext, slowConsumer, stop

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

plugin

protected final PartitionBrokerPlugin plugin

reloadConfigOnPoll

protected boolean reloadConfigOnPoll

monitors

protected final ConcurrentHashMap<org.apache.activemq.command.ConnectionId,org.apache.activemq.partition.PartitionBroker.ConnectionMonitor> monitors

Constructor Detail

PartitionBroker

public PartitionBroker(Broker broker,
               PartitionBrokerPlugin plugin)

Method Detail

start

public void start()
           throws Exception

Specified by:

start in interface org.apache.activemq.Service

Overrides:

start in class BrokerFilter

Throws:

Exception

onMonitorStart

protected void onMonitorStart()

onMonitorStop

protected void onMonitorStop()

runPartitionMonitor

protected void runPartitionMonitor()

monitorWait

protected void monitorWait()
                    throws InterruptedException

Throws:

InterruptedException

monitorWakeup

protected void monitorWakeup()

reloadConfiguration

protected void reloadConfiguration()
                            throws Exception

Throws:

Exception

checkTarget

protected void checkTarget(org.apache.activemq.partition.PartitionBroker.ConnectionMonitor monitor)

getConnectionString

protected String getConnectionString(HashSet<String> ids)

pickBestBroker

protected Target pickBestBroker(org.apache.activemq.partition.PartitionBroker.ConnectionMonitor monitor)

getTarget

protected Target getTarget(org.apache.activemq.command.ActiveMQDestination dest)

addConnection

public void addConnection(ConnectionContext context,
                 org.apache.activemq.command.ConnectionInfo info)
                   throws Exception

Specified by:

addConnection in interface Broker

Overrides:

addConnection in class BrokerFilter

Throws:

Exception

removeConnection

public void removeConnection(ConnectionContext context,
                    org.apache.activemq.command.ConnectionInfo info,
                    Throwable error)
                      throws Exception

Specified by:

removeConnection in interface Broker

Overrides:

removeConnection in class BrokerFilter

Throws:

Exception

send

public void send(ProducerBrokerExchange producerExchange,
        org.apache.activemq.command.Message messageSend)
          throws Exception

Specified by:

send in interface Region

Overrides:

send in class BrokerFilter

Throws:

Exception

getConfig

protected Partitioning getConfig()