Package io.netty.handler.codec.dns
Class TcpDnsResponseDecoder
java.lang.Object
io.netty.channel.ChannelHandlerAdapter
io.netty.channel.ChannelInboundHandlerAdapter
io.netty.handler.codec.ByteToMessageDecoder
io.netty.handler.codec.LengthFieldBasedFrameDecoder
io.netty.handler.codec.dns.TcpDnsResponseDecoder
- All Implemented Interfaces:
ChannelHandler
,ChannelInboundHandler
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Nested Class Summary
Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder
ByteToMessageDecoder.Cumulator
Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
ChannelHandler.Sharable
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Field Summary
FieldsFields inherited from class io.netty.handler.codec.ByteToMessageDecoder
COMPOSITE_CUMULATOR, MERGE_CUMULATOR
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Constructor Summary
ConstructorsConstructorDescriptionCreates a new decoder with the default record decoder.TcpDnsResponseDecoder
(DnsRecordDecoder recordDecoder, int maxFrameLength) Creates a new decoder with the specifiedrecordDecoder
andmaxFrameLength
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Method Summary
Modifier and TypeMethodDescriptionprotected Object
decode
(ChannelHandlerContext ctx, ByteBuf in) Create a frame out of theByteBuf
and return it.protected ByteBuf
extractFrame
(ChannelHandlerContext ctx, ByteBuf buffer, int index, int length) Extract the sub-region of the specified buffer.Methods inherited from class io.netty.handler.codec.LengthFieldBasedFrameDecoder
decode, getUnadjustedFrameLength
Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder
actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered
Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught
Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, 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
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Field Details
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responseDecoder
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Constructor Details
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TcpDnsResponseDecoder
public TcpDnsResponseDecoder()Creates a new decoder with the default record decoder. -
TcpDnsResponseDecoder
Creates a new decoder with the specifiedrecordDecoder
andmaxFrameLength
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Method Details
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decode
Description copied from class:LengthFieldBasedFrameDecoder
Create a frame out of theByteBuf
and return it.- Overrides:
decode
in classLengthFieldBasedFrameDecoder
- Parameters:
ctx
- theChannelHandlerContext
which thisByteToMessageDecoder
belongs toin
- theByteBuf
from which to read data- Returns:
- frame the
ByteBuf
which represent the frame ornull
if no frame could be created. - Throws:
Exception
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extractFrame
Description copied from class:LengthFieldBasedFrameDecoder
Extract the sub-region of the specified buffer.- Overrides:
extractFrame
in classLengthFieldBasedFrameDecoder
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