org.apache.flink.runtime.io.network.partition.hybrid.tiered.netty

Class NettyConnectionReaderImpl

java.lang.Object

org.apache.flink.runtime.io.network.partition.hybrid.tiered.netty.NettyConnectionReaderImpl

All Implemented Interfaces:

NettyConnectionReader

public class NettyConnectionReaderImpl
extends Object
implements NettyConnectionReader

The default implementation of NettyConnectionReader.

Constructor Summary

Constructors

Constructor and Description
NettyConnectionReaderImpl(Supplier<InputChannel> inputChannelProvider)

Method Summary

Modifier and Type	Method and Description
int	peekNextBufferSubpartitionId() Returns the index of the subpartition where the next buffer locates, or -1 if there is no buffer available and the subpartition to be consumed is not determined.
Optional<Buffer>	readBuffer(int subpartitionId, int segmentId) Read a buffer from netty connection.

Methods inherited from class java.lang.Object

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

Constructor Detail

NettyConnectionReaderImpl

public NettyConnectionReaderImpl(Supplier<InputChannel> inputChannelProvider)

Method Detail

peekNextBufferSubpartitionId

public int peekNextBufferSubpartitionId()
                                 throws IOException

Description copied from interface: NettyConnectionReader

Returns the index of the subpartition where the next buffer locates, or -1 if there is no buffer available and the subpartition to be consumed is not determined.

Specified by:

peekNextBufferSubpartitionId in interface NettyConnectionReader

Throws:

IOException

readBuffer

public Optional<Buffer> readBuffer(int subpartitionId,
                                   int segmentId)

Description copied from interface: NettyConnectionReader

Read a buffer from netty connection.

Specified by:

readBuffer in interface NettyConnectionReader

Parameters:

subpartitionId - the subpartition where the buffer locates.

segmentId - segment id indicates the id of segment.

Returns:

Optional.empty() will be returned if there is no buffer sent from netty connection otherwise a buffer will be returned.