Package org.apache.pulsar.common.protocol

Class PulsarDecoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

org.apache.pulsar.common.protocol.PulsarDecoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

Direct Known Subclasses:

PulsarHandler

public abstract class PulsarDecoder
extends io.netty.channel.ChannelInboundHandlerAdapter

Basic implementation of the channel handler to process inbound Pulsar data.

Please be aware that the decoded protocol command instance passed to a handle* method is cleared and reused for the next protocol command after the method completes. This is done in order to minimize object allocations for performance reasons. It is not allowed to retain a reference to the handle* method parameter command instance after the method returns. If you need to pass an instance of the command instance to another thread or retain a reference to it after the handle* method completes, you must make a deep copy of the command instance.

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Field Summary

Fields

Modifier and Type	Field	Description
protected io.netty.handler.codec.haproxy.HAProxyMessage	proxyMessage

Constructor Summary

Constructors

Constructor	Description
PulsarDecoder()

Method Summary

Modifier and Type	Method	Description
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
protected void	handleAck(CommandAck ack)
protected void	handleAckResponse(CommandAckResponse ackResponse)
protected void	handleActiveConsumerChange(CommandActiveConsumerChange change)
protected void	handleAddPartitionToTxn(CommandAddPartitionToTxn commandAddPartitionToTxn)
protected void	handleAddPartitionToTxnResponse(CommandAddPartitionToTxnResponse commandAddPartitionToTxnResponse)
protected void	handleAddSubscriptionToTxn(CommandAddSubscriptionToTxn commandAddSubscriptionToTxn)
protected void	handleAddSubscriptionToTxnResponse(CommandAddSubscriptionToTxnResponse commandAddSubscriptionToTxnResponse)
protected void	handleAuthChallenge(CommandAuthChallenge commandAuthChallenge)
protected void	handleAuthResponse(CommandAuthResponse commandAuthResponse)
protected void	handleCloseConsumer(CommandCloseConsumer closeConsumer)
protected void	handleCloseProducer(CommandCloseProducer closeProducer)
protected void	handleCommandWatchTopicList(CommandWatchTopicList commandWatchTopicList)
protected void	handleCommandWatchTopicListClose(CommandWatchTopicListClose commandWatchTopicListClose)
protected void	handleCommandWatchTopicListSuccess(CommandWatchTopicListSuccess commandWatchTopicListSuccess)
protected void	handleCommandWatchTopicUpdate(CommandWatchTopicUpdate commandWatchTopicUpdate)
protected void	handleConnect(CommandConnect connect)
protected void	handleConnected(CommandConnected connected)
protected void	handleConsumerStats(CommandConsumerStats commandConsumerStats)
protected void	handleConsumerStatsResponse(CommandConsumerStatsResponse commandConsumerStatsResponse)
protected void	handleEndTxn(CommandEndTxn commandEndTxn)
protected void	handleEndTxnOnPartition(CommandEndTxnOnPartition commandEndTxnOnPartition)
protected void	handleEndTxnOnPartitionResponse(CommandEndTxnOnPartitionResponse commandEndTxnOnPartitionResponse)
protected void	handleEndTxnOnSubscription(CommandEndTxnOnSubscription commandEndTxnOnSubscription)
protected void	handleEndTxnOnSubscriptionResponse(CommandEndTxnOnSubscriptionResponse commandEndTxnOnSubscriptionResponse)
protected void	handleEndTxnResponse(CommandEndTxnResponse commandEndTxnResponse)
protected void	handleError(CommandError error)
protected void	handleFlow(CommandFlow flow)
protected void	handleGetLastMessageId(CommandGetLastMessageId getLastMessageId)
protected void	handleGetLastMessageIdSuccess(CommandGetLastMessageIdResponse success)
protected void	handleGetOrCreateSchema(CommandGetOrCreateSchema commandGetOrCreateSchema)
protected void	handleGetOrCreateSchemaResponse(CommandGetOrCreateSchemaResponse commandGetOrCreateSchemaResponse)
protected void	handleGetSchema(CommandGetSchema commandGetSchema)
protected void	handleGetSchemaResponse(CommandGetSchemaResponse commandGetSchemaResponse)
protected void	handleGetTopicsOfNamespace(CommandGetTopicsOfNamespace commandGetTopicsOfNamespace)
protected void	handleGetTopicsOfNamespaceSuccess(CommandGetTopicsOfNamespaceResponse response)
protected void	handleLookup(CommandLookupTopic lookup)
protected void	handleLookupResponse(CommandLookupTopicResponse connection)
protected void	handleMessage(CommandMessage cmdMessage, io.netty.buffer.ByteBuf headersAndPayload)
protected void	handleNewTxn(CommandNewTxn commandNewTxn)
protected void	handleNewTxnResponse(CommandNewTxnResponse commandNewTxnResponse)
protected void	handlePartitionMetadataRequest(CommandPartitionedTopicMetadata response)
protected void	handlePartitionResponse(CommandPartitionedTopicMetadataResponse response)
protected void	handlePing(CommandPing ping)
protected void	handlePong(CommandPong pong)
protected void	handleProducer(CommandProducer producer)
protected void	handleProducerSuccess(CommandProducerSuccess success)
protected void	handleReachedEndOfTopic(CommandReachedEndOfTopic commandReachedEndOfTopic)
protected void	handleRedeliverUnacknowledged(CommandRedeliverUnacknowledgedMessages redeliver)
protected void	handleSeek(CommandSeek seek)
protected void	handleSend(CommandSend send, io.netty.buffer.ByteBuf headersAndPayload)
protected void	handleSendError(CommandSendError sendError)
protected void	handleSendReceipt(CommandSendReceipt sendReceipt)
protected void	handleSubscribe(CommandSubscribe subscribe)
protected void	handleSuccess(CommandSuccess success)
protected void	handleTcClientConnectRequest(CommandTcClientConnectRequest tcClientConnectRequest)
protected void	handleTcClientConnectResponse(CommandTcClientConnectResponse tcClientConnectResponse)
protected void	handleTopicMigrated(CommandTopicMigrated commandMigratedTopic)
protected void	handleUnsubscribe(CommandUnsubscribe unsubscribe)
protected void	interceptCommand(BaseCommand command)
protected abstract void	messageReceived()

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Field Details

proxyMessage

protected io.netty.handler.codec.haproxy.HAProxyMessage proxyMessage

Constructor Details

PulsarDecoder

public PulsarDecoder()

Method Details

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
 Object msg)
                 throws Exception

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

messageReceived

protected abstract void messageReceived()

interceptCommand

protected void interceptCommand(BaseCommand command)
                         throws InterceptException

Throws:

InterceptException

handlePartitionMetadataRequest

protected void handlePartitionMetadataRequest(CommandPartitionedTopicMetadata response)

handlePartitionResponse

protected void handlePartitionResponse(CommandPartitionedTopicMetadataResponse response)

handleLookup

protected void handleLookup(CommandLookupTopic lookup)

handleLookupResponse

protected void handleLookupResponse(CommandLookupTopicResponse connection)

handleConnect

protected void handleConnect(CommandConnect connect)

handleConnected

protected void handleConnected(CommandConnected connected)

handleSubscribe

protected void handleSubscribe(CommandSubscribe subscribe)

handleProducer

protected void handleProducer(CommandProducer producer)

handleSend

protected void handleSend(CommandSend send,
 io.netty.buffer.ByteBuf headersAndPayload)

handleSendReceipt

protected void handleSendReceipt(CommandSendReceipt sendReceipt)

handleSendError

protected void handleSendError(CommandSendError sendError)

handleMessage

protected void handleMessage(CommandMessage cmdMessage,
 io.netty.buffer.ByteBuf headersAndPayload)

handleAck

protected void handleAck(CommandAck ack)

handleAckResponse

protected void handleAckResponse(CommandAckResponse ackResponse)

handleFlow

protected void handleFlow(CommandFlow flow)

handleRedeliverUnacknowledged

protected void handleRedeliverUnacknowledged(CommandRedeliverUnacknowledgedMessages redeliver)

handleUnsubscribe

protected void handleUnsubscribe(CommandUnsubscribe unsubscribe)

handleSeek

protected void handleSeek(CommandSeek seek)

handleActiveConsumerChange

protected void handleActiveConsumerChange(CommandActiveConsumerChange change)

handleSuccess

protected void handleSuccess(CommandSuccess success)

handleProducerSuccess

protected void handleProducerSuccess(CommandProducerSuccess success)

handleError

protected void handleError(CommandError error)

handleCloseProducer

protected void handleCloseProducer(CommandCloseProducer closeProducer)

handleCloseConsumer

protected void handleCloseConsumer(CommandCloseConsumer closeConsumer)

handlePing

protected void handlePing(CommandPing ping)

handlePong

protected void handlePong(CommandPong pong)

handleConsumerStats

protected void handleConsumerStats(CommandConsumerStats commandConsumerStats)

handleConsumerStatsResponse

protected void handleConsumerStatsResponse(CommandConsumerStatsResponse commandConsumerStatsResponse)

handleReachedEndOfTopic

protected void handleReachedEndOfTopic(CommandReachedEndOfTopic commandReachedEndOfTopic)

handleTopicMigrated

protected void handleTopicMigrated(CommandTopicMigrated commandMigratedTopic)

handleGetLastMessageId

protected void handleGetLastMessageId(CommandGetLastMessageId getLastMessageId)

handleGetLastMessageIdSuccess

protected void handleGetLastMessageIdSuccess(CommandGetLastMessageIdResponse success)

handleGetTopicsOfNamespace

protected void handleGetTopicsOfNamespace(CommandGetTopicsOfNamespace commandGetTopicsOfNamespace)

handleGetTopicsOfNamespaceSuccess

protected void handleGetTopicsOfNamespaceSuccess(CommandGetTopicsOfNamespaceResponse response)

handleGetSchema

protected void handleGetSchema(CommandGetSchema commandGetSchema)

handleGetSchemaResponse

protected void handleGetSchemaResponse(CommandGetSchemaResponse commandGetSchemaResponse)

handleGetOrCreateSchema

protected void handleGetOrCreateSchema(CommandGetOrCreateSchema commandGetOrCreateSchema)

handleGetOrCreateSchemaResponse

protected void handleGetOrCreateSchemaResponse(CommandGetOrCreateSchemaResponse commandGetOrCreateSchemaResponse)

handleAuthResponse

protected void handleAuthResponse(CommandAuthResponse commandAuthResponse)

handleAuthChallenge

protected void handleAuthChallenge(CommandAuthChallenge commandAuthChallenge)

handleTcClientConnectRequest

protected void handleTcClientConnectRequest(CommandTcClientConnectRequest tcClientConnectRequest)

handleTcClientConnectResponse

protected void handleTcClientConnectResponse(CommandTcClientConnectResponse tcClientConnectResponse)

handleNewTxn

protected void handleNewTxn(CommandNewTxn commandNewTxn)

handleNewTxnResponse

protected void handleNewTxnResponse(CommandNewTxnResponse commandNewTxnResponse)

handleAddPartitionToTxn

protected void handleAddPartitionToTxn(CommandAddPartitionToTxn commandAddPartitionToTxn)

handleAddPartitionToTxnResponse

protected void handleAddPartitionToTxnResponse(CommandAddPartitionToTxnResponse commandAddPartitionToTxnResponse)

handleAddSubscriptionToTxn

protected void handleAddSubscriptionToTxn(CommandAddSubscriptionToTxn commandAddSubscriptionToTxn)

handleAddSubscriptionToTxnResponse

protected void handleAddSubscriptionToTxnResponse(CommandAddSubscriptionToTxnResponse commandAddSubscriptionToTxnResponse)

handleEndTxn

protected void handleEndTxn(CommandEndTxn commandEndTxn)

handleEndTxnResponse

protected void handleEndTxnResponse(CommandEndTxnResponse commandEndTxnResponse)

handleEndTxnOnPartition

protected void handleEndTxnOnPartition(CommandEndTxnOnPartition commandEndTxnOnPartition)

handleEndTxnOnPartitionResponse

protected void handleEndTxnOnPartitionResponse(CommandEndTxnOnPartitionResponse commandEndTxnOnPartitionResponse)

handleEndTxnOnSubscription

protected void handleEndTxnOnSubscription(CommandEndTxnOnSubscription commandEndTxnOnSubscription)

handleEndTxnOnSubscriptionResponse

protected void handleEndTxnOnSubscriptionResponse(CommandEndTxnOnSubscriptionResponse commandEndTxnOnSubscriptionResponse)

handleCommandWatchTopicList

protected void handleCommandWatchTopicList(CommandWatchTopicList commandWatchTopicList)

handleCommandWatchTopicListSuccess

protected void handleCommandWatchTopicListSuccess(CommandWatchTopicListSuccess commandWatchTopicListSuccess)

handleCommandWatchTopicUpdate

protected void handleCommandWatchTopicUpdate(CommandWatchTopicUpdate commandWatchTopicUpdate)

handleCommandWatchTopicListClose

protected void handleCommandWatchTopicListClose(CommandWatchTopicListClose commandWatchTopicListClose)