org.apache.hadoop.hbase.io.asyncfs

Class ProtobufDecoder

java.lang.Object

org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerAdapter

org.apache.hbase.thirdparty.io.netty.channel.ChannelInboundHandlerAdapter

org.apache.hbase.thirdparty.io.netty.handler.codec.MessageToMessageDecoder<org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf>

org.apache.hadoop.hbase.io.asyncfs.ProtobufDecoder

All Implemented Interfaces:

org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler, org.apache.hbase.thirdparty.io.netty.channel.ChannelInboundHandler

@InterfaceAudience.Private
public class ProtobufDecoder
extends org.apache.hbase.thirdparty.io.netty.handler.codec.MessageToMessageDecoder<org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf>

Modified based on io.netty.handler.codec.protobuf.ProtobufDecoder. The Netty's ProtobufDecode supports unshaded protobuf messages (com.google.protobuf). Hadoop 3.3.0 and above relocates protobuf classes to a shaded jar (hadoop-thirdparty), and so we must use reflection to detect which one (relocated or not) to use. Do not use this to process HBase's shaded protobuf messages. This is meant to process the protobuf messages in HDFS for the asyncfs use case.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler

org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor and Description
ProtobufDecoder(Object prototype)

Method Summary

Modifier and Type	Method and Description
protected void	decode(org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext ctx, org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf msg, List<Object> out)

Methods inherited from class org.apache.hbase.thirdparty.io.netty.handler.codec.MessageToMessageDecoder

acceptInboundMessage, channelRead

Methods inherited from class org.apache.hbase.thirdparty.io.netty.channel.ChannelInboundHandlerAdapter

channelActive, channelInactive, channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Detail

ProtobufDecoder

public ProtobufDecoder(Object prototype)

Method Detail

decode

protected void decode(org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext ctx,
                      org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf msg,
                      List<Object> out)
               throws Exception

Specified by:

decode in class org.apache.hbase.thirdparty.io.netty.handler.codec.MessageToMessageDecoder<org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf>

Throws:

Exception