Package org.apache.pulsar.broker.service.nonpersistent

Class NonPersistentDispatcherMultipleConsumers

java.lang.Object

org.apache.pulsar.broker.service.EntryFilterSupport

org.apache.pulsar.broker.service.AbstractBaseDispatcher

org.apache.pulsar.broker.service.AbstractDispatcherMultipleConsumers

org.apache.pulsar.broker.service.nonpersistent.NonPersistentDispatcherMultipleConsumers

All Implemented Interfaces:

Dispatcher, NonPersistentDispatcher

Direct Known Subclasses:

NonPersistentStickyKeyDispatcherMultipleConsumers

public class NonPersistentDispatcherMultipleConsumers
extends AbstractDispatcherMultipleConsumers
implements NonPersistentDispatcher

Field Summary

Fields

Modifier and Type	Field	Description
protected final org.apache.pulsar.common.stats.Rate	msgDrop
protected final Subscription	subscription
protected static final AtomicIntegerFieldUpdater<NonPersistentDispatcherMultipleConsumers>	TOTAL_AVAILABLE_PERMITS_UPDATER

Fields inherited from class org.apache.pulsar.broker.service.AbstractDispatcherMultipleConsumers

consumerList, consumerSet, currentConsumerRoundRobinIndex, FALSE, IS_CLOSED_UPDATER, TRUE

Fields inherited from class org.apache.pulsar.broker.service.AbstractBaseDispatcher

dispatchThrottlingOnBatchMessageEnabled, serviceConfig

Fields inherited from class org.apache.pulsar.broker.service.EntryFilterSupport

entryFilters, filterContext

Constructor Summary

Constructors

Constructor	Description
NonPersistentDispatcherMultipleConsumers(NonPersistentTopic topic, Subscription subscription)

Method Summary

Modifier and Type	Method	Description
void	addConsumer(Consumer consumer)
boolean	canUnsubscribe(Consumer consumer)
CompletableFuture<Void>	close()	mark dispatcher closed to stop new incoming requests and disconnect all consumers.
void	consumerFlow(Consumer consumer, int additionalNumberOfMessages)	Indicates that this consumer is now ready to receive more messages.
CompletableFuture<Void>	disconnectActiveConsumers(boolean isResetCursor)	Disconnect active consumers.
CompletableFuture<Void>	disconnectAllConsumers(boolean isResetCursor)	disconnect all consumers.
CopyOnWriteArrayList<Consumer>	getConsumers()
org.apache.pulsar.common.stats.Rate	getMessageDropRate()
RedeliveryTracker	getRedeliveryTracker()
org.apache.pulsar.common.api.proto.CommandSubscribe.SubType	getType()
boolean	hasPermits()
boolean	isConsumerAvailable(Consumer consumer)
boolean	isConsumerConnected()
protected boolean	isConsumersExceededOnSubscription()	Determine whether the number of consumers on the subscription reaches the threshold.
void	removeConsumer(Consumer consumer)
protected void	reScheduleRead()
void	reset()	mark dispatcher open to serve new incoming requests.
void	resetCloseFuture()
void	sendMessages(List<org.apache.bookkeeper.mledger.Entry> entries)

Methods inherited from class org.apache.pulsar.broker.service.AbstractDispatcherMultipleConsumers

cancelPendingRead, getNextConsumer, getRandomConsumer, isClosed

Methods inherited from class org.apache.pulsar.broker.service.AbstractBaseDispatcher

computeReadLimits, filterEntriesForConsumer, filterEntriesForConsumer, getFilterAcceptedMsgCount, getFilterProcessedMsgCount, getFilterRejectedMsgCount, getFilterRescheduledMsgCount, getSubscriptionName, isConsumersExceededOnSubscription, peekStickyKey, reachDispatchRateLimit, updateMessagesToRead, updatePendingBytesToDispatch

Methods inherited from class org.apache.pulsar.broker.service.EntryFilterSupport

runFiltersForEntry

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.pulsar.broker.service.Dispatcher

checkAndUnblockIfStuck, clearDelayedMessages, cursorIsReset, disconnectAllConsumers, getFilterAcceptedMsgCount, getFilterProcessedMsgCount, getFilterRejectedMsgCount, getFilterRescheduledMsgCount, getNumberOfDelayedMessages, getRateLimiter, initializeDispatchRateLimiterIfNeeded, isClosed, markDeletePositionMoveForward, trackDelayedDelivery, updateRateLimiter

Methods inherited from interface org.apache.pulsar.broker.service.nonpersistent.NonPersistentDispatcher

addUnAckedMessages, redeliverUnacknowledgedMessages, redeliverUnacknowledgedMessages

Field Details

subscription

protected final Subscription subscription

msgDrop

protected final org.apache.pulsar.common.stats.Rate msgDrop

TOTAL_AVAILABLE_PERMITS_UPDATER

protected static final AtomicIntegerFieldUpdater<NonPersistentDispatcherMultipleConsumers> TOTAL_AVAILABLE_PERMITS_UPDATER

Constructor Details

NonPersistentDispatcherMultipleConsumers

public NonPersistentDispatcherMultipleConsumers(NonPersistentTopic topic,
 Subscription subscription)

Method Details

addConsumer

public void addConsumer(Consumer consumer)
                 throws BrokerServiceException

Specified by:

addConsumer in interface Dispatcher

Throws:

BrokerServiceException

isConsumersExceededOnSubscription

protected boolean isConsumersExceededOnSubscription()

Description copied from class: AbstractBaseDispatcher

Determine whether the number of consumers on the subscription reaches the threshold.

Specified by:

isConsumersExceededOnSubscription in class AbstractBaseDispatcher

Returns:

removeConsumer

public void removeConsumer(Consumer consumer)
                    throws BrokerServiceException

Specified by:

removeConsumer in interface Dispatcher

Throws:

BrokerServiceException

isConsumerConnected

public boolean isConsumerConnected()

Specified by:

isConsumerConnected in interface Dispatcher

Overrides:

isConsumerConnected in class AbstractDispatcherMultipleConsumers

getConsumers

public CopyOnWriteArrayList<Consumer> getConsumers()

Specified by:

getConsumers in interface Dispatcher

Overrides:

getConsumers in class AbstractDispatcherMultipleConsumers

canUnsubscribe

public boolean canUnsubscribe(Consumer consumer)

Specified by:

canUnsubscribe in interface Dispatcher

Overrides:

canUnsubscribe in class AbstractDispatcherMultipleConsumers

close

public CompletableFuture<Void> close()

Description copied from interface: Dispatcher

mark dispatcher closed to stop new incoming requests and disconnect all consumers.

Specified by:

close in interface Dispatcher

Returns:

consumerFlow

public void consumerFlow(Consumer consumer,
 int additionalNumberOfMessages)

Description copied from interface: Dispatcher

Indicates that this consumer is now ready to receive more messages.

Specified by:

consumerFlow in interface Dispatcher

disconnectAllConsumers

public CompletableFuture<Void> disconnectAllConsumers(boolean isResetCursor)

Description copied from interface: Dispatcher

disconnect all consumers.

Specified by:

disconnectAllConsumers in interface Dispatcher

Returns:

disconnectActiveConsumers

public CompletableFuture<Void> disconnectActiveConsumers(boolean isResetCursor)

Description copied from interface: Dispatcher

Disconnect active consumers.

Specified by:

disconnectActiveConsumers in interface Dispatcher

resetCloseFuture

public void resetCloseFuture()

Specified by:

resetCloseFuture in interface Dispatcher

Overrides:

resetCloseFuture in class AbstractBaseDispatcher

reset

public void reset()

Description copied from interface: Dispatcher

mark dispatcher open to serve new incoming requests.

Specified by:

reset in interface Dispatcher

getType

public org.apache.pulsar.common.api.proto.CommandSubscribe.SubType getType()

Specified by:

getType in interface Dispatcher

Overrides:

getType in class AbstractDispatcherMultipleConsumers

getRedeliveryTracker

public RedeliveryTracker getRedeliveryTracker()

Specified by:

getRedeliveryTracker in interface Dispatcher

sendMessages

public void sendMessages(List<org.apache.bookkeeper.mledger.Entry> entries)

Specified by:

sendMessages in interface NonPersistentDispatcher

hasPermits

public boolean hasPermits()

Specified by:

hasPermits in interface NonPersistentDispatcher

getMessageDropRate

public org.apache.pulsar.common.stats.Rate getMessageDropRate()

Specified by:

getMessageDropRate in interface NonPersistentDispatcher

isConsumerAvailable

public boolean isConsumerAvailable(Consumer consumer)

Specified by:

isConsumerAvailable in class AbstractDispatcherMultipleConsumers

reScheduleRead

protected void reScheduleRead()

Specified by:

reScheduleRead in class AbstractBaseDispatcher