Class FastLzFrameDecoder
- 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.ByteToMessageDecoder
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- io.netty.handler.codec.compression.FastLzFrameDecoder
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- All Implemented Interfaces:
ChannelHandler,ChannelInboundHandler
public class FastLzFrameDecoder extends ByteToMessageDecoder
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static classFastLzFrameDecoder.StateCurrent state of decompression.-
Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder
ByteToMessageDecoder.Cumulator
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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 java.util.zip.ChecksumchecksumUnderlying checksum calculator in use.private intchunkLengthLength of current received chunk of data.private intcurrentChecksumChecksum value of current received chunk of data which has checksum.private FastLzFrameDecoder.StatecurrentStateprivate booleanhasChecksumIndicates is this chunk has checksum or not.private booleanisCompressedIndicates is this chunk compressed or not.private intoriginalLengthOriginal of current received chunk of data.-
Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder
COMPOSITE_CUMULATOR, MERGE_CUMULATOR
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Constructor Summary
Constructors Constructor Description FastLzFrameDecoder()Creates the fastest FastLZ decoder without checksum calculation.FastLzFrameDecoder(boolean validateChecksums)Creates a FastLZ decoder with calculation of checksums as specified.FastLzFrameDecoder(java.util.zip.Checksum checksum)Creates a FastLZ decoder with specified checksum calculator.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected voiddecode(ChannelHandlerContext ctx, ByteBuf in, java.util.List<java.lang.Object> out)Decode the from oneByteBufto an other.-
Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder
actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered
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Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter
channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught
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Methods inherited from class io.netty.channel.ChannelHandlerAdapter
ensureNotSharable, handlerAdded, 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
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Field Detail
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currentState
private FastLzFrameDecoder.State currentState
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checksum
private final java.util.zip.Checksum checksum
Underlying checksum calculator in use.
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chunkLength
private int chunkLength
Length of current received chunk of data.
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originalLength
private int originalLength
Original of current received chunk of data. It is equal tochunkLengthfor non compressed chunks.
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isCompressed
private boolean isCompressed
Indicates is this chunk compressed or not.
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hasChecksum
private boolean hasChecksum
Indicates is this chunk has checksum or not.
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currentChecksum
private int currentChecksum
Checksum value of current received chunk of data which has checksum.
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Constructor Detail
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FastLzFrameDecoder
public FastLzFrameDecoder()
Creates the fastest FastLZ decoder without checksum calculation.
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FastLzFrameDecoder
public FastLzFrameDecoder(boolean validateChecksums)
Creates a FastLZ decoder with calculation of checksums as specified.- Parameters:
validateChecksums- If true, the checksum field will be validated against the actual uncompressed data, and if the checksums do not match, a suitableDecompressionExceptionwill be thrown. Note, that in this case decoder will useAdler32as a default checksum calculator.
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FastLzFrameDecoder
public FastLzFrameDecoder(java.util.zip.Checksum checksum)
Creates a FastLZ decoder with specified checksum calculator.- Parameters:
checksum- theChecksuminstance to use to check data for integrity. You may setnullif you do not want to validate checksum of each block.
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Method Detail
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decode
protected void decode(ChannelHandlerContext ctx, ByteBuf in, java.util.List<java.lang.Object> out) throws java.lang.Exception
Description copied from class:ByteToMessageDecoderDecode the from oneByteBufto an other. This method will be called till either the inputByteBufhas nothing to read when return from this method or till nothing was read from the inputByteBuf.- Specified by:
decodein classByteToMessageDecoder- Parameters:
ctx- theChannelHandlerContextwhich thisByteToMessageDecoderbelongs toin- theByteBuffrom which to read dataout- theListto which decoded messages should be added- Throws:
java.lang.Exception- is thrown if an error occurs
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