edu.snu.coral.runtime.executor.data.blocktransfer

Class BlockTransfer

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.SimpleChannelInboundHandler<BlockStream>

edu.snu.coral.runtime.executor.data.blocktransfer.BlockTransfer

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler

@ChannelHandler.Sharable
public final class BlockTransfer
extends io.netty.channel.SimpleChannelInboundHandler<BlockStream>

Manages channels and exposes an interface for BlockManagerWorker.

Nested Class Summary

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

io.netty.channel.ChannelHandler.Sharable

Method Summary

Modifier and Type	Method and Description
void	channelActive(io.netty.channel.ChannelHandlerContext ctx)
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
protected void	channelRead0(io.netty.channel.ChannelHandlerContext ctx, BlockStream stream)
void	exceptionCaught(io.netty.channel.ChannelHandlerContext ctx, Throwable cause)
BlockInputStream	initiatePull(String executorId, boolean encodePartialBlock, DataStoreProperty.Value blockStoreValue, String blockId, String runtimeEdgeId, KeyRange keyRange) Initiate a pull-based block transfer.
BlockOutputStream	initiatePush(String executorId, boolean encodePartialBlock, String blockId, String runtimeEdgeId, KeyRange keyRange) Initiate a push-based block transfer.

Methods inherited from class io.netty.channel.SimpleChannelInboundHandler

acceptInboundMessage, channelRead

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, userEventTriggered

Methods inherited from class 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 io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Method Detail

initiatePull

public BlockInputStream initiatePull(String executorId,
                                     boolean encodePartialBlock,
                                     DataStoreProperty.Value blockStoreValue,
                                     String blockId,
                                     String runtimeEdgeId,
                                     KeyRange keyRange)

Initiate a pull-based block transfer.

Parameters:

executorId - the id of the source executor

encodePartialBlock - whether the sender should start encoding even though the whole block has not been written yet

blockStoreValue - the block store

blockId - the id of the block to transfer

runtimeEdgeId - the runtime edge id

keyRange - the key range

Returns:

a BlockInputStream from which the received data can be read

initiatePush

public BlockOutputStream initiatePush(String executorId,
                                      boolean encodePartialBlock,
                                      String blockId,
                                      String runtimeEdgeId,
                                      KeyRange keyRange)

Initiate a push-based block transfer.

Parameters:

executorId - the id of the destination executor

encodePartialBlock - whether to start encoding even though the whole block has not been written yet

blockId - the id of the block to transfer

runtimeEdgeId - the runtime edge id

keyRange - the key range

Returns:

a BlockOutputStream to which data can be written

channelRead0

protected void channelRead0(io.netty.channel.ChannelHandlerContext ctx,
                            BlockStream stream)

Specified by:

channelRead0 in class io.netty.channel.SimpleChannelInboundHandler<BlockStream>

channelActive

public void channelActive(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

channelActive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class io.netty.channel.ChannelInboundHandlerAdapter

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter

exceptionCaught

public void exceptionCaught(io.netty.channel.ChannelHandlerContext ctx,
                            Throwable cause)

Specified by:

exceptionCaught in interface io.netty.channel.ChannelHandler

Specified by:

exceptionCaught in interface io.netty.channel.ChannelInboundHandler

Overrides:

exceptionCaught in class io.netty.channel.ChannelInboundHandlerAdapter