io.netty.handler.codec.protobuf

Class ProtobufVarint32FrameDecoder

java.lang.Object

io.netty.channel.ChannelStateHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.handler.codec.ByteToMessageDecoder<Object>

io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundByteHandler, io.netty.channel.ChannelInboundHandler, io.netty.channel.ChannelStateHandler

public class ProtobufVarint32FrameDecoder
extends ByteToMessageDecoder<Object>

A decoder that splits the received ByteBufs dynamically by the value of the Google Protocol Buffers Base 128 Varints integer length field in the message. For example:

 BEFORE DECODE (302 bytes)       AFTER DECODE (300 bytes)
 +--------+---------------+      +---------------+
 | Length | Protobuf Data |----->| Protobuf Data |
 | 0xAC02 |  (300 bytes)  |      |  (300 bytes)  |
 +--------+---------------+      +---------------+
 

See Also:

CodedInputStream

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
ProtobufVarint32FrameDecoder() Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
Object	decode(io.netty.channel.ChannelHandlerContext ctx, io.netty.buffer.ByteBuf in)

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

beforeAdd, callDecode, channelInactive, decodeLast, inboundBufferUpdated, newInboundBuffer, replace

Methods inherited from class io.netty.channel.ChannelStateHandlerAdapter

afterAdd, afterRemove, beforeRemove, channelActive, channelRegistered, channelUnregistered, exceptionCaught, userEventTriggered

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.ChannelStateHandler

channelActive, channelRegistered, channelUnregistered

Methods inherited from interface io.netty.channel.ChannelHandler

afterAdd, afterRemove, beforeRemove, exceptionCaught, userEventTriggered

Constructor Detail

ProtobufVarint32FrameDecoder

public ProtobufVarint32FrameDecoder()

Creates a new instance.

Method Detail

decode

public Object decode(io.netty.channel.ChannelHandlerContext ctx,
            io.netty.buffer.ByteBuf in)
              throws Exception

Specified by:

decode in class ByteToMessageDecoder<Object>

Throws:

Exception