org.apache.hadoop.hbase.ipc

Class NettyRpcFrameDecoder

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.ByteToMessageDecoder

org.apache.hadoop.hbase.ipc.NettyRpcFrameDecoder

All Implemented Interfaces:

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

@InterfaceAudience.Private
public class NettyRpcFrameDecoder
extends org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder

Decoder for extracting frame

Since:

2.0.0

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder

org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder.Cumulator

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

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

Field Summary

Fields

Modifier and Type	Field and Description
private NettyServerRpcConnection	connection
private static int	FRAME_LENGTH_FIELD_LENGTH
private int	maxFrameLength
private boolean	requestTooBig
private String	requestTooBigMessage

Fields inherited from class org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder

COMPOSITE_CUMULATOR, MERGE_CUMULATOR

Constructor Summary

Constructors

Constructor and Description
NettyRpcFrameDecoder(int maxFrameLength)

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 in, List<Object> out)
private org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader	getHeader(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf in, int headerSize)
private void	handleTooBigRequest(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf in)
private static int	readRawVarint32(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf buffer) Reads variable length 32bit int from buffer This method is from ProtobufVarint32FrameDecoder in Netty and modified a little bit to pass the cyeckstyle rule.
(package private) void	setConnection(NettyServerRpcConnection connection)

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

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

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

channelActive, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught

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

handlerAdded

Field Detail

FRAME_LENGTH_FIELD_LENGTH

private static int FRAME_LENGTH_FIELD_LENGTH

maxFrameLength

private final int maxFrameLength

requestTooBig

private boolean requestTooBig

requestTooBigMessage

private String requestTooBigMessage

connection

private NettyServerRpcConnection connection

Constructor Detail

NettyRpcFrameDecoder

public NettyRpcFrameDecoder(int maxFrameLength)

Method Detail

setConnection

void setConnection(NettyServerRpcConnection connection)

decode

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

Specified by:

decode in class org.apache.hbase.thirdparty.io.netty.handler.codec.ByteToMessageDecoder

Throws:

Exception

handleTooBigRequest

private void handleTooBigRequest(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf in)
                          throws IOException

Throws:

IOException

getHeader

private org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader getHeader(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf in,
                                                                                            int headerSize)
                                                                                     throws IOException

Throws:

IOException

readRawVarint32

private static int readRawVarint32(org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf buffer)

Reads variable length 32bit int from buffer This method is from ProtobufVarint32FrameDecoder in Netty and modified a little bit to pass the cyeckstyle rule.

Returns:

decoded int if buffers readerIndex has been forwarded else nonsense value