Package crow.game.codec.netty

Class ReadWriteLoggingHandler

java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.channel.ChannelDuplexHandler
crow.game.codec.netty.ReadWriteLoggingHandler
All Implemented Interfaces:
io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler, io.netty.channel.ChannelOutboundHandler
public class ReadWriteLoggingHandler extends io.netty.channel.ChannelDuplexHandler
This is a simplification of the code found in nettys LoggingHandler that juts dumps read and writes and is used to dump the POJOs AFTER the frame and packet codecs are done. Below is an example of the pipeline, which uses the given logger and filters out ping and pong messages since they tend to be noisy. 

 
       ch.pipeline()
         .addLast(
             new LoggingHandler(LogLevel.DEBUG),
             new FrameCodec(context),
             new PacketCodec(context),
             new ReadWriteLoggingHandler(
                 slf4jLogger, Pattern.compile("ha0\\.proto\\.Ping|ha0\\.proto\\.Pong")));

  • Nested Class Summary

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

    io.netty.channel.ChannelHandler.Sharable

  • Constructor Summary

    Constructors
    Constructor
    Description
    ReadWriteLoggingHandler(org.slf4j.Logger logger)
     
    ReadWriteLoggingHandler(org.slf4j.Logger logger, Pattern filter)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
     
    void
    write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise)
     

    Methods inherited from class io.netty.channel.ChannelDuplexHandler

    bind, close, connect, deregister, disconnect, flush, read

    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

    • ReadWriteLoggingHandler

      public ReadWriteLoggingHandler(org.slf4j.Logger logger, Pattern filter)

    • ReadWriteLoggingHandler

      public ReadWriteLoggingHandler(org.slf4j.Logger logger)

  • 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

    • write

      public void write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise) throws Exception
      Specified by:
      write in interface io.netty.channel.ChannelOutboundHandler
      Overrides:
      write in class io.netty.channel.ChannelDuplexHandler
      Throws:
      Exception