WebSocket08FrameDecoder (Netty API Reference (4.1.22.Final))

java.lang.Object
- io.netty.channel.ChannelHandlerAdapter
- - io.netty.channel.ChannelInboundHandlerAdapter
  - - io.netty.handler.codec.ByteToMessageDecoder
    - - io.netty.handler.codec.http.websocketx.WebSocket08FrameDecoder

All Implemented Interfaces:

ChannelHandler ， ChannelInboundHandler ， WebSocketFrameDecoder

已知直接子类：

WebSocket07FrameDecoder ， WebSocket13FrameDecoder
```
public class WebSocket08FrameDecoder
extends ByteToMessageDecoder
implements WebSocketFrameDecoder
```
从有线协议版本8格式解码web套接字帧。此代码从webbit分叉并修改。

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

Field Summary
- Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder
  COMPOSITE_CUMULATOR, MERGE_CUMULATOR

构造方法摘要

构造方法
Constructor and Description
`WebSocket08FrameDecoder(boolean expectMaskedFrames, boolean allowExtensions, int maxFramePayloadLength)` 构造函数
`WebSocket08FrameDecoder(boolean expectMaskedFrames, boolean allowExtensions, int maxFramePayloadLength, boolean allowMaskMismatch)` 构造函数

方法摘要

所有方法接口方法具体的方法
Modifier and Type	Method and Description
`protected void`	`checkCloseFrameBody(ChannelHandlerContext ctx, ByteBuf buffer)`
`protected void`	`decode(ChannelHandlerContext ctx, ByteBuf in, java.util.List<java.lang.Object> out)` 解码从一个`ByteBuf`到另一个。

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.ChannelInboundHandler
channelActive, channelInactive, channelRead, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from interface io.netty.channel.ChannelHandler
handlerAdded, handlerRemoved

- 构造方法详细信息
  - WebSocket08FrameDecoder
```
public WebSocket08FrameDecoder(boolean expectMaskedFrames,
                               boolean allowExtensions,
                               int maxFramePayloadLength)
```
    构造函数
    
    参数
    
    expectMaskedFrames - Web套接字服务器必须将其设置为真正处理的传入掩码有效内容。客户端实现必须将其设置为false。
    
    allowExtensions - 允许使用或不使用保留扩展位的标志
    
    maxFramePayloadLength - 帧有效负载的最大长度。将其设置为适合您的应用程序有助于检查拒绝服务攻击。
  - WebSocket08FrameDecoder
```
public WebSocket08FrameDecoder(boolean expectMaskedFrames,
                               boolean allowExtensions,
                               int maxFramePayloadLength,
                               boolean allowMaskMismatch)
```
    构造函数
    
    参数
    
    expectMaskedFrames - Web套接字服务器必须将其设置为真正处理的传入掩码有效内容。客户端实现必须将其设置为false。
    
    allowExtensions - 允许使用或不使用保留扩展位的标志
    
    maxFramePayloadLength - 帧有效负载的最大长度。将其设置为适合您的应用程序有助于检查拒绝服务攻击。
    
    allowMaskMismatch - 设置为true时，仍然会接受未按照标准正确屏蔽的帧。
- 方法详细信息
  - decode
```
protected void decode(ChannelHandlerContext ctx,
                      ByteBuf in,
                      java.util.List<java.lang.Object> out)
               throws java.lang.Exception
```
    从类复制的描述： ByteToMessageDecoder
    
    解码从一个ByteBuf到另一个。该方法将被调用，直到输入ByteBuf在从此方法返回时没有任何可读的内容或直到从输入ByteBuf没有读取任何内容。
    
    Specified by:
    
    decode在课堂上 ByteToMessageDecoder
    
    参数
    
    ctx - 这ByteToMessageDecoder所属的ChannelHandlerContext
    
    in - 从中读取数据的ByteBuf
    
    out - 应该添加解码消息的 List
    
    异常
    
    java.lang.Exception - 发生错误时抛出
  - checkCloseFrameBody
```
protected void checkCloseFrameBody(ChannelHandlerContext ctx,
                                   ByteBuf buffer)
```

Class WebSocket08FrameDecoder

Nested Class Summary

Nested classes/interfaces inherited from class io.netty.handler.codec.ByteToMessageDecoder

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

Field Summary

Fields inherited from class io.netty.handler.codec.ByteToMessageDecoder

构造方法摘要

方法摘要

Methods inherited from class io.netty.handler.codec.ByteToMessageDecoder

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

Methods inherited from class java.lang.Object

Methods inherited from interface io.netty.channel.ChannelInboundHandler

Methods inherited from interface io.netty.channel.ChannelHandler

构造方法详细信息

WebSocket08FrameDecoder

WebSocket08FrameDecoder

方法详细信息

decode

checkCloseFrameBody