Package io.netty.handler.codec.dns
Class DatagramDnsQueryDecoder
- java.lang.Object
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- io.netty.channel.ChannelHandlerAdapter
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- io.netty.channel.ChannelInboundHandlerAdapter
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- io.netty.handler.codec.MessageToMessageDecoder<DatagramPacket>
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- io.netty.handler.codec.dns.DatagramDnsQueryDecoder
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- All Implemented Interfaces:
ChannelHandler
,ChannelInboundHandler
@UnstableApi @Sharable public class DatagramDnsQueryDecoder extends MessageToMessageDecoder<DatagramPacket>
Decodes aDatagramPacket
into aDatagramDnsQuery
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Nested Class Summary
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Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler
ChannelHandler.Sharable
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Field Summary
Fields Modifier and Type Field Description private DnsRecordDecoder
recordDecoder
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Constructor Summary
Constructors Constructor Description DatagramDnsQueryDecoder()
Creates a new decoder with the default record decoder.DatagramDnsQueryDecoder(DnsRecordDecoder recordDecoder)
Creates a new decoder with the specifiedrecordDecoder
.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
decode(ChannelHandlerContext ctx, DatagramPacket packet, java.util.List<java.lang.Object> out)
Decode from one message to an other.private void
decodeQuestions(DnsQuery query, ByteBuf buf, int questionCount)
private void
decodeRecords(DnsQuery query, DnsSection section, ByteBuf buf, int count)
private static DnsQuery
newQuery(DatagramPacket packet, ByteBuf buf)
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Methods inherited from class io.netty.handler.codec.MessageToMessageDecoder
acceptInboundMessage, channelRead
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Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered
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Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, handlerRemoved, isSharable
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface io.netty.channel.ChannelHandler
handlerAdded, handlerRemoved
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Field Detail
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recordDecoder
private final DnsRecordDecoder recordDecoder
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Constructor Detail
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DatagramDnsQueryDecoder
public DatagramDnsQueryDecoder()
Creates a new decoder with the default record decoder.
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DatagramDnsQueryDecoder
public DatagramDnsQueryDecoder(DnsRecordDecoder recordDecoder)
Creates a new decoder with the specifiedrecordDecoder
.
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Method Detail
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decode
protected void decode(ChannelHandlerContext ctx, DatagramPacket packet, java.util.List<java.lang.Object> out) throws java.lang.Exception
Description copied from class:MessageToMessageDecoder
Decode from one message to an other. This method will be called for each written message that can be handled by this decoder.- Specified by:
decode
in classMessageToMessageDecoder<DatagramPacket>
- Parameters:
ctx
- theChannelHandlerContext
which thisMessageToMessageDecoder
belongs topacket
- the message to decode to an other oneout
- theList
to which decoded messages should be added- Throws:
java.lang.Exception
- is thrown if an error occurs
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newQuery
private static DnsQuery newQuery(DatagramPacket packet, ByteBuf buf)
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decodeQuestions
private void decodeQuestions(DnsQuery query, ByteBuf buf, int questionCount) throws java.lang.Exception
- Throws:
java.lang.Exception
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decodeRecords
private void decodeRecords(DnsQuery query, DnsSection section, ByteBuf buf, int count) throws java.lang.Exception
- Throws:
java.lang.Exception
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