Package org.apache.hadoop.hdfs.protocol.datatransfer

Class Receiver

java.lang.Object

org.apache.hadoop.hdfs.protocol.datatransfer.Receiver

All Implemented Interfaces:

org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol

@Private
@Evolving
public abstract class Receiver
extends java.lang.Object
implements org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol

Receiver

Field Summary

Fields

Modifier and Type	Field	Description
protected java.io.DataInputStream	in

Fields inherited from interface org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol

DATA_TRANSFER_VERSION, LOG

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Receiver(org.apache.hadoop.tracing.Tracer tracer)

Method Summary

Modifier and Type	Method	Description
protected void	initialize(java.io.DataInputStream in)	Initialize a receiver for DataTransferProtocol with a socket.
protected void	processOp(org.apache.hadoop.hdfs.protocol.datatransfer.Op op)	Process op by the corresponding method.
protected org.apache.hadoop.hdfs.protocol.datatransfer.Op	readOp()	Read an Op.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol

blockChecksum, blockGroupChecksum, copyBlock, readBlock, releaseShortCircuitFds, replaceBlock, requestShortCircuitFds, requestShortCircuitShm, transferBlock, writeBlock

Field Detail

in

protected java.io.DataInputStream in

Constructor Detail

Receiver

protected Receiver(org.apache.hadoop.tracing.Tracer tracer)

Method Detail

initialize

protected void initialize(java.io.DataInputStream in)

Initialize a receiver for DataTransferProtocol with a socket.

readOp

protected final org.apache.hadoop.hdfs.protocol.datatransfer.Op readOp()
                                                                throws java.io.IOException

Read an Op. It also checks protocol version.

Throws:

java.io.IOException

processOp

protected final void processOp(org.apache.hadoop.hdfs.protocol.datatransfer.Op op)
                        throws java.io.IOException

Process op by the corresponding method.

Throws:

java.io.IOException