Package io.kroxylicious.proxy.internal

Class HaProxyMessageHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.haproxy.HAProxyMessage>
io.kroxylicious.proxy.internal.HaProxyMessageHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler
public class HaProxyMessageHandler extends io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.haproxy.HAProxyMessage>
A channel handler that intercepts HAProxyMessage objects emitted by Netty's HAProxyMessageDecoder and stores the extracted context in the KafkaSession.

This handler prevents HAProxyMessage from propagating further down the pipeline to handlers (like FilterHandler) that only expect Kafka protocol messages. Extending SimpleChannelInboundHandler ensures the ref-counted HAProxyMessage is released automatically after channelRead0(io.netty.channel.ChannelHandlerContext, io.netty.handler.codec.haproxy.HAProxyMessage) returns; all other messages are forwarded unchanged.

  • Nested Class Summary

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

    io.netty.channel.ChannelHandler.Sharable

  • Constructor Summary

    Constructors
    Constructor
    Description
    HaProxyMessageHandler(KafkaSession kafkaSession)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.haproxy.HAProxyMessage haProxyMessage)
     

    Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

    acceptInboundMessage, channelRead

    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

  • Constructor Details

    • HaProxyMessageHandler

      public HaProxyMessageHandler(KafkaSession kafkaSession)

  • Method Details

    • channelRead0

      protected void channelRead0(io.netty.channel.ChannelHandlerContext ctx, io.netty.handler.codec.haproxy.HAProxyMessage haProxyMessage)
      Specified by:
      channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<io.netty.handler.codec.haproxy.HAProxyMessage>