io.netty.handler.codec.compression

类 ZlibDecoder

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder

io.netty.handler.codec.compression.ZlibDecoder

所有已实现的接口:

ChannelHandler, ChannelInboundHandler

直接已知子类:

JdkZlibDecoder, JZlibDecoder

public abstract class ZlibDecoder
extends ByteToMessageDecoder

Decompresses a ByteBuf using the deflate algorithm.

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

字段

限定符和类型	字段和说明
protected int	maxAllocation Maximum allowed size of the decompression buffer.

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
ZlibDecoder() Same as ZlibDecoder(int) with maxAllocation = 0.
ZlibDecoder(int maxAllocation) Construct a new ZlibDecoder.

方法概要

限定符和类型	方法和说明
protected void	decompressionBufferExhausted(ByteBuf buffer) Called when the decompression buffer cannot be expanded further.
abstract boolean	isClosed() Returns true if and only if the end of the compressed stream has been reached.
protected ByteBuf	prepareDecompressBuffer(ChannelHandlerContext ctx, ByteBuf buffer, int preferredSize) Allocate or expand the decompression buffer, without exceeding the maximum allocation.

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

actualReadableBytes, callDecode, channelInactive, channelRead, channelReadComplete, decode, 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

字段详细资料

maxAllocation

protected final int maxAllocation

Maximum allowed size of the decompression buffer.

构造器详细资料

ZlibDecoder

public ZlibDecoder()

Same as ZlibDecoder(int) with maxAllocation = 0.

ZlibDecoder

public ZlibDecoder(int maxAllocation)

Construct a new ZlibDecoder.

参数:

maxAllocation - Maximum size of the decompression buffer. Must be >= 0. If zero, maximum size is decided by the ByteBufAllocator.

方法详细资料

isClosed

public abstract boolean isClosed()

Returns true if and only if the end of the compressed stream has been reached.

prepareDecompressBuffer

protected ByteBuf prepareDecompressBuffer(ChannelHandlerContext ctx,
                                          ByteBuf buffer,
                                          int preferredSize)

Allocate or expand the decompression buffer, without exceeding the maximum allocation. Calls decompressionBufferExhausted(ByteBuf) if the buffer is full and cannot be expanded further.

decompressionBufferExhausted

protected void decompressionBufferExhausted(ByteBuf buffer)

Called when the decompression buffer cannot be expanded further. Default implementation is a no-op, but subclasses can override in case they want to do something before the DecompressionException is thrown, such as log the data that was decompressed so far.