io.netty.handler.codec.compression

类 SnappyFramedDecoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder

io.netty.handler.codec.compression.SnappyFramedDecoder

所有已实现的接口:

ChannelHandler, ChannelInboundHandler

public class SnappyFramedDecoder
extends ByteToMessageDecoder

Uncompresses a ByteBuf encoded with the Snappy framing format. See http://code.google.com/p/snappy/source/browse/trunk/framing_format.txt Note that by default, validation of the checksum header in each chunk is DISABLED for performance improvements. If performance is less of an issue, or if you would prefer the safety that checksum validation brings, please use the SnappyFramedDecoder(boolean) constructor with the argument set to true.

嵌套类概要

从类继承的嵌套类/接口 io.netty.handler.codec.ByteToMessageDecoder

ByteToMessageDecoder.Cumulator

从接口继承的嵌套类/接口 io.netty.channel.ChannelHandler

ChannelHandler.Sharable

字段概要

从类继承的字段 io.netty.handler.codec.ByteToMessageDecoder

COMPOSITE_CUMULATOR, MERGE_CUMULATOR

构造器概要

构造器

构造器和说明
SnappyFramedDecoder() Creates a new snappy-framed decoder with validation of checksums turned OFF.
SnappyFramedDecoder(boolean validateChecksums) Creates a new snappy-framed decoder with validation of checksums as specified.

方法概要

方法

限定符和类型	方法和说明
protected void	decode(ChannelHandlerContext ctx, ByteBuf in, java.util.List<java.lang.Object> out) Decode the from one ByteBuf to an other.

从类继承的方法 io.netty.handler.codec.ByteToMessageDecoder

actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decodeLast, discardSomeReadBytes, handlerRemoved, handlerRemoved0, internalBuffer, isSingleDecode, setCumulator, setDiscardAfterReads, setSingleDecode, userEventTriggered

从类继承的方法 io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

从类继承的方法 io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, isSharable

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 io.netty.channel.ChannelHandler

handlerAdded

构造器详细资料

SnappyFramedDecoder

public SnappyFramedDecoder()

Creates a new snappy-framed decoder with validation of checksums turned OFF. To turn checksum validation on, please use the alternate SnappyFramedDecoder(boolean) constructor.

SnappyFramedDecoder

public SnappyFramedDecoder(boolean validateChecksums)

Creates a new snappy-framed decoder with validation of checksums as specified.

参数:

validateChecksums - If true, the checksum field will be validated against the actual uncompressed data, and if the checksums do not match, a suitable DecompressionException will be thrown

方法详细资料

decode

protected void decode(ChannelHandlerContext ctx,
          ByteBuf in,
          java.util.List<java.lang.Object> out)
               throws java.lang.Exception

从类复制的说明: ByteToMessageDecoder

Decode the from one ByteBuf to an other. This method will be called till either the input ByteBuf has nothing to read when return from this method or till nothing was read from the input ByteBuf.

指定者:

decode 在类中 ByteToMessageDecoder

参数:

ctx - the ChannelHandlerContext which this ByteToMessageDecoder belongs to

in - the ByteBuf from which to read data

out - the List to which decoded messages should be added

抛出:

java.lang.Exception - is thrown if an error occurs