Package org.apache.pulsar.proxy.server

Class ProxyConnection

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

org.apache.pulsar.common.protocol.PulsarDecoder

org.apache.pulsar.common.protocol.PulsarHandler

org.apache.pulsar.proxy.server.ProxyConnection

All Implemented Interfaces:

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

public class ProxyConnection
extends PulsarHandler

Handles incoming discovery request from client and sends appropriate response back to client.

Please see PulsarDecoder javadoc for important details about handle* method parameter instance lifecycle.

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 static final Integer	SPLICE_BYTES

Fields inherited from class org.apache.pulsar.common.protocol.PulsarHandler

ctx, remoteAddress

Fields inherited from class org.apache.pulsar.common.protocol.PulsarDecoder

proxyMessage

Constructor Summary

Constructors

Constructor	Description
ProxyConnection(ProxyService proxyService, io.netty.resolver.dns.DnsAddressResolverGroup dnsAddressResolverGroup)

Method Summary

Modifier and Type	Method	Description
protected void	authChallengeSuccessCallback(org.apache.pulsar.common.api.AuthData authChallenge)
protected void	authenticationFailedCallback(Throwable t)
void	brokerConnected(DirectProxyHandler directProxyHandler, CommandConnected connected)
void	channelActive(io.netty.channel.ChannelHandlerContext ctx)
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	channelRegistered(io.netty.channel.ChannelHandlerContext ctx)
void	channelUnregistered(io.netty.channel.ChannelHandlerContext ctx)
void	channelWritabilityChanged(io.netty.channel.ChannelHandlerContext ctx)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
Authentication	getClientAuthentication()
io.netty.handler.codec.haproxy.HAProxyMessage	getHAProxyMessage()
protected void	handleAuthResponse(CommandAuthResponse authResponse)
protected void	handleConnect(CommandConnect connect)
protected void	handleGetSchema(CommandGetSchema commandGetSchema)
protected void	handleGetTopicsOfNamespace(CommandGetTopicsOfNamespace commandGetTopicsOfNamespace)
protected void	handleLookup(CommandLookupTopic lookup)	handles discovery request from client ands sends next active broker address.
protected void	handlePartitionMetadataRequest(CommandPartitionedTopicMetadata partitionMetadata)
boolean	hasHAProxyMessage()
protected boolean	isHandshakeCompleted()
protected static boolean	isTlsChannel(io.netty.channel.Channel channel)
protected static io.netty.channel.ChannelPromise	spliceNIC2NIC(io.netty.channel.epoll.EpollSocketChannel inboundChannel, io.netty.channel.epoll.EpollSocketChannel outboundChannel, int spliceLength)	Use splice to zero-copy of NIC to NIC.

Methods inherited from class org.apache.pulsar.common.protocol.PulsarHandler

cancelKeepAliveTask, getRemoteEndpointProtocolVersion, handlePing, handlePong, messageReceived, sendPing, setRemoteEndpointProtocolVersion

Methods inherited from class org.apache.pulsar.common.protocol.PulsarDecoder

handleAck, handleAckResponse, handleActiveConsumerChange, handleAddPartitionToTxn, handleAddPartitionToTxnResponse, handleAddSubscriptionToTxn, handleAddSubscriptionToTxnResponse, handleAuthChallenge, handleCloseConsumer, handleCloseProducer, handleCommandWatchTopicList, handleCommandWatchTopicListClose, handleCommandWatchTopicListSuccess, handleCommandWatchTopicUpdate, handleConnected, handleConsumerStats, handleConsumerStatsResponse, handleEndTxn, handleEndTxnOnPartition, handleEndTxnOnPartitionResponse, handleEndTxnOnSubscription, handleEndTxnOnSubscriptionResponse, handleEndTxnResponse, handleError, handleFlow, handleGetLastMessageId, handleGetLastMessageIdSuccess, handleGetOrCreateSchema, handleGetOrCreateSchemaResponse, handleGetSchemaResponse, handleGetTopicsOfNamespaceSuccess, handleLookupResponse, handleMessage, handleNewTxn, handleNewTxnResponse, handlePartitionResponse, handleProducer, handleProducerSuccess, handleReachedEndOfTopic, handleRedeliverUnacknowledged, handleSeek, handleSend, handleSendError, handleSendReceipt, handleSubscribe, handleSuccess, handleTcClientConnectRequest, handleTcClientConnectResponse, handleTopicMigrated, handleUnsubscribe, interceptCommand

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, 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

SPLICE_BYTES

protected static final Integer SPLICE_BYTES

Constructor Details

ProxyConnection

public ProxyConnection(ProxyService proxyService,
 io.netty.resolver.dns.DnsAddressResolverGroup dnsAddressResolverGroup)

Method Details

channelRegistered

public void channelRegistered(io.netty.channel.ChannelHandlerContext ctx)
                       throws Exception

Specified by:

channelRegistered in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRegistered in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelUnregistered

public void channelUnregistered(io.netty.channel.ChannelHandlerContext ctx)
                         throws Exception

Specified by:

channelUnregistered in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelUnregistered in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelActive

public void channelActive(io.netty.channel.ChannelHandlerContext ctx)
                   throws Exception

Specified by:

channelActive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class PulsarHandler

Throws:

Exception

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)
                     throws Exception

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class PulsarHandler

Throws:

Exception

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
 Throwable cause)
                     throws Exception

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

channelWritabilityChanged

public void channelWritabilityChanged(io.netty.channel.ChannelHandlerContext ctx)
                               throws Exception

Specified by:

channelWritabilityChanged in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelWritabilityChanged in class io.netty.channel.ChannelInboundHandlerAdapter

Throws:

Exception

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 PulsarDecoder

Throws:

Exception

spliceNIC2NIC

protected static io.netty.channel.ChannelPromise spliceNIC2NIC(io.netty.channel.epoll.EpollSocketChannel inboundChannel,
 io.netty.channel.epoll.EpollSocketChannel outboundChannel,
 int spliceLength)

Use splice to zero-copy of NIC to NIC.

Parameters:

inboundChannel - input channel

outboundChannel - output channel

isTlsChannel

protected static boolean isTlsChannel(io.netty.channel.Channel channel)

brokerConnected

public void brokerConnected(DirectProxyHandler directProxyHandler,
 CommandConnected connected)

authenticationFailedCallback

protected void authenticationFailedCallback(Throwable t)

authChallengeSuccessCallback

protected void authChallengeSuccessCallback(org.apache.pulsar.common.api.AuthData authChallenge)

handleConnect

protected void handleConnect(CommandConnect connect)

Overrides:

handleConnect in class PulsarDecoder

handleAuthResponse

protected void handleAuthResponse(CommandAuthResponse authResponse)

Overrides:

handleAuthResponse in class PulsarDecoder

handlePartitionMetadataRequest

protected void handlePartitionMetadataRequest(CommandPartitionedTopicMetadata partitionMetadata)

Overrides:

handlePartitionMetadataRequest in class PulsarDecoder

handleGetTopicsOfNamespace

protected void handleGetTopicsOfNamespace(CommandGetTopicsOfNamespace commandGetTopicsOfNamespace)

Overrides:

handleGetTopicsOfNamespace in class PulsarDecoder

handleGetSchema

protected void handleGetSchema(CommandGetSchema commandGetSchema)

Overrides:

handleGetSchema in class PulsarDecoder

handleLookup

protected void handleLookup(CommandLookupTopic lookup)

handles discovery request from client ands sends next active broker address.

Overrides:

handleLookup in class PulsarDecoder

getClientAuthentication

public Authentication getClientAuthentication()

isHandshakeCompleted

protected boolean isHandshakeCompleted()

Specified by:

isHandshakeCompleted in class PulsarHandler

hasHAProxyMessage

public boolean hasHAProxyMessage()

getHAProxyMessage

public io.netty.handler.codec.haproxy.HAProxyMessage getHAProxyMessage()