Package org.apache.pulsar.client.impl

Class ZeroQueueConsumerImpl<T>

java.lang.Object

org.apache.pulsar.client.impl.ConsumerBase<T>

org.apache.pulsar.client.impl.ConsumerImpl<T>

org.apache.pulsar.client.impl.ZeroQueueConsumerImpl<T>

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.pulsar.client.api.Consumer<T>

public class ZeroQueueConsumerImpl<T>
extends ConsumerImpl<T>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pulsar.client.impl.ConsumerBase

ConsumerBase.OpBatchReceive<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected final PulsarClientImpl	client
protected final String	topic

Fields inherited from class org.apache.pulsar.client.impl.ConsumerImpl

chunkedMessagesMap, expireTimeOfIncompleteChunkedMessageMillis, lastDequeuedMessageId, paused, stats

Fields inherited from class org.apache.pulsar.client.impl.ConsumerBase

batchReceivePolicy, batchReceiveTimeout, conf, CONSUMER_EPOCH, consumerEpoch, consumerEventListener, consumerName, CURRENT_RECEIVER_QUEUE_SIZE_UPDATER, executorProvider, externalPinnedExecutor, incomingMessagesSize, INITIAL_RECEIVER_QUEUE_SIZE, interceptors, internalPinnedExecutor, listener, maxReceiverQueueSize, MEMORY_THRESHOLD_FOR_RECEIVER_QUEUE_SIZE_EXPANSION, pendingBatchReceives, pendingReceives, reentrantLock, scaleReceiverQueueHint, schema, subscribeFuture, subscription, unAckedChunkedMessageIdSequenceMap

Constructor Summary

Constructors

Constructor

Description

ZeroQueueConsumerImpl(PulsarClientImpl client, String topic, ConsumerConfigurationData<T> conf, ExecutorProvider executorProvider, int partitionIndex, boolean hasParentConsumer, CompletableFuture<org.apache.pulsar.client.api.Consumer<T>> subscribeFuture, org.apache.pulsar.client.api.MessageId startMessageId, org.apache.pulsar.client.api.Schema<T> schema, ConsumerInterceptors<T> interceptors, boolean createTopicIfDoesNotExist)

Method Summary

Modifier and Type	Method	Description
protected boolean	canEnqueueMessage(org.apache.pulsar.client.api.Message<T> message)
protected boolean	changeToConnecting()
protected boolean	changeToReadyState()
protected boolean	changeToRegisteringSchemaState()
protected void	consumerIsReconnectedToBroker(ClientCnx cnx, int currentQueueSize)
protected org.apache.pulsar.client.impl.HandlerState.State	getAndUpdateState(UnaryOperator<org.apache.pulsar.client.impl.HandlerState.State> updater)
PulsarClientImpl	getClient()
protected org.apache.pulsar.client.impl.HandlerState.State	getState()
void	initReceiverQueueSize()
protected org.apache.pulsar.client.api.Message<T>	internalReceive()
protected CompletableFuture<org.apache.pulsar.client.api.Message<T>>	internalReceiveAsync()
int	minReceiverQueueSize()
protected void	setCurrentReceiverQueueSize(int newSize)	Update the size of the consumer receive queue.
protected void	setState(org.apache.pulsar.client.impl.HandlerState.State s)
protected void	tryTriggerListener()

Methods inherited from class org.apache.pulsar.client.impl.ConsumerImpl

clearIncomingMessagesAndGetMessageNumber, closeAsync, completeOpBatchReceive, connectionFailed, connectionOpened, doAcknowledge, doAcknowledge, doReconsumeLater, equals, getAvailablePermits, getClientCnx, getConnectionHandler, getLastDisconnectedTimestamp, getLastMessageIdAsync, getPossibleSendToDeadLetterTopicMessages, getStats, getTopicNameWithoutPartition, getUnAckedMessageTracker, hashCode, hasMessageAvailable, hasMessageAvailableAsync, hasReachedEndOfTopic, increaseAvailablePermits, increaseAvailablePermits, internalBatchReceive, internalBatchReceiveAsync, internalGetLastMessageIdAsync, internalReceive, isBatch, isConnected, isConnected, messageProcessed, negativeAcknowledge, negativeAcknowledge, newMessage, newSingleMessage, numMessagesInQueue, pause, redeliverUnacknowledgedMessages, redeliverUnacknowledgedMessages, removeExpireIncompleteChunkedMessages, resume, seek, seek, seek, seekAsync, seekAsync, seekAsync, trackMessage, trackMessage, trackMessage, unsubscribeAsync, updateAutoScaleReceiverQueueHint

Methods inherited from class org.apache.pulsar.client.impl.ConsumerBase

acknowledge, acknowledge, acknowledge, acknowledge, acknowledgeAsync, acknowledgeAsync, acknowledgeAsync, acknowledgeAsync, acknowledgeAsync, acknowledgeAsync, acknowledgeAsync, acknowledgeCumulative, acknowledgeCumulative, acknowledgeCumulativeAsync, acknowledgeCumulativeAsync, acknowledgeCumulativeAsync, batchReceive, batchReceiveAsync, beforeConsume, callMessageListener, clearIncomingMessages, close, completePendingBatchReceive, completePendingReceive, decreaseIncomingMessageSize, doAcknowledgeWithTxn, doAcknowledgeWithTxn, enqueueMessageAndCheckBatchReceive, expectMoreIncomingMessages, failPendingReceive, getConsumerName, getCurrentReceiverQueueSize, getIncomingMessageSize, getLastMessageId, getNewMessagesImpl, getSubscription, getSubType, getTopic, getTotalIncomingMessages, hasBatchReceiveTimeout, hasEnoughMessagesForBatchReceive, hasNextPendingReceive, hasPendingBatchReceive, isValidConsumerEpoch, negativeAcknowledge, nextPendingReceive, notifyPendingBatchReceivedCallBack, notifyPendingBatchReceivedCallBack, onAcknowledge, onAcknowledge, onAcknowledgeCumulative, onAcknowledgeCumulative, onAckTimeoutSend, onNegativeAcksSend, onPartitionsChange, peekMessageKey, receive, receive, receiveAsync, reconsumeLater, reconsumeLater, reconsumeLater, reconsumeLaterAsync, reconsumeLaterAsync, reconsumeLaterAsync, reconsumeLaterCumulative, reconsumeLaterCumulativeAsync, reconsumeLaterCumulativeAsync, reduceCurrentReceiverQueueSize, resetIncomingMessageSize, subscribeFuture, toString, triggerBatchReceiveTimeoutTask, unsubscribe

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

client

protected final PulsarClientImpl client

topic

protected final String topic

Constructor Details

ZeroQueueConsumerImpl

public ZeroQueueConsumerImpl(PulsarClientImpl client,
 String topic,
 ConsumerConfigurationData<T> conf,
 ExecutorProvider executorProvider,
 int partitionIndex,
 boolean hasParentConsumer,
 CompletableFuture<org.apache.pulsar.client.api.Consumer<T>> subscribeFuture,
 org.apache.pulsar.client.api.MessageId startMessageId,
 org.apache.pulsar.client.api.Schema<T> schema,
 ConsumerInterceptors<T> interceptors,
 boolean createTopicIfDoesNotExist)

Method Details

minReceiverQueueSize

public int minReceiverQueueSize()

Overrides:

minReceiverQueueSize in class ConsumerImpl<T>

initReceiverQueueSize

public void initReceiverQueueSize()

Overrides:

initReceiverQueueSize in class ConsumerBase<T>

internalReceive

protected org.apache.pulsar.client.api.Message<T> internalReceive()
                                                           throws org.apache.pulsar.client.api.PulsarClientException

Overrides:

internalReceive in class ConsumerImpl<T>

Throws:

org.apache.pulsar.client.api.PulsarClientException

internalReceiveAsync

protected CompletableFuture<org.apache.pulsar.client.api.Message<T>> internalReceiveAsync()

Overrides:

internalReceiveAsync in class ConsumerImpl<T>

consumerIsReconnectedToBroker

protected void consumerIsReconnectedToBroker(ClientCnx cnx,
 int currentQueueSize)

Overrides:

consumerIsReconnectedToBroker in class ConsumerImpl<T>

canEnqueueMessage

protected boolean canEnqueueMessage(org.apache.pulsar.client.api.Message<T> message)

Overrides:

canEnqueueMessage in class ConsumerBase<T>

tryTriggerListener

protected void tryTriggerListener()

Overrides:

tryTriggerListener in class ConsumerBase<T>

setCurrentReceiverQueueSize

protected void setCurrentReceiverQueueSize(int newSize)

Description copied from class: ConsumerBase

Update the size of the consumer receive queue. See ConsumerBuilder.receiverQueueSize(int).

Overrides:

setCurrentReceiverQueueSize in class ConsumerImpl<T>

Parameters:

newSize - new size of the receiver queue.

changeToReadyState

protected boolean changeToReadyState()

changeToRegisteringSchemaState

protected boolean changeToRegisteringSchemaState()

getState

protected org.apache.pulsar.client.impl.HandlerState.State getState()

changeToConnecting

protected boolean changeToConnecting()

setState

protected void setState(org.apache.pulsar.client.impl.HandlerState.State s)

getAndUpdateState

protected org.apache.pulsar.client.impl.HandlerState.State getAndUpdateState(UnaryOperator<org.apache.pulsar.client.impl.HandlerState.State> updater)

getClient

public PulsarClientImpl getClient()