io.ray.streaming.runtime.transfer

类 DataReader

java.lang.Object

io.ray.streaming.runtime.transfer.DataReader

public class DataReader
extends Object

DataReader is wrapper of streaming c++ DataReader, which read data from channels of upstream workers

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	DataReader.BarrierType

构造器概要

构造器

构造器和说明
DataReader(List<String> inputChannels, List<io.ray.api.BaseActorHandle> fromActors, Map<String,OffsetInfo> checkpoints, StreamingWorkerConfig workerConfig)

方法概要

限定符和类型	方法和说明
void	close() Close reader to release resource
ChannelRecoverInfo	getQueueRecoverInfo()
ChannelMessage	read(long timeoutMillis) Read message from input channels, if timeout, return null.
void	stop() Stop reader

从类继承的方法 java.lang.Object

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

构造器详细资料

DataReader

public DataReader(List<String> inputChannels,
                  List<io.ray.api.BaseActorHandle> fromActors,
                  Map<String,OffsetInfo> checkpoints,
                  StreamingWorkerConfig workerConfig)

参数:

inputChannels - input channels ids

fromActors - upstream input actors

workerConfig - configuration

方法详细资料

read

public ChannelMessage read(long timeoutMillis)

Read message from input channels, if timeout, return null.

参数:

timeoutMillis - timeout

返回:

message or null

getQueueRecoverInfo

public ChannelRecoverInfo getQueueRecoverInfo()

stop

public void stop()

Stop reader

close

public void close()

Close reader to release resource