tech.ydb.topic.read.impl

Class AsyncReaderImpl

java.lang.Object

tech.ydb.topic.impl.GrpcStreamRetrier

tech.ydb.topic.read.impl.ReaderImpl

tech.ydb.topic.read.impl.AsyncReaderImpl

All Implemented Interfaces:

AsyncReader

public class AsyncReaderImpl
extends ReaderImpl
implements AsyncReader

Author:

Nikolay Perfilov

Field Summary

Fields inherited from class tech.ydb.topic.impl.GrpcStreamRetrier

id, isReconnecting, isStopped, reconnectCounter

Constructor Summary

Constructors

Constructor and Description
AsyncReaderImpl(TopicRpc topicRpc, ReaderSettings settings, ReadEventHandlersSettings handlersSettings)

Method Summary

Modifier and Type	Method and Description
protected void	handleClosePartitionSession(PartitionSession partitionSession)
protected void	handleCommitResponse(long committedOffset, PartitionSession partitionSession)
protected CompletableFuture<Void>	handleDataReceivedEvent(DataReceivedEvent event)
protected void	handleReaderClosed()
protected void	handleStartPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest request, PartitionSession partitionSession, Consumer<StartPartitionSessionSettings> confirmCallback)
protected void	handleStopPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest request, Long partitionId, Runnable confirmCallback)
CompletableFuture<Void>	init() Initialize reading in the background.
protected void	onShutdown(String reason)
CompletableFuture<Void>	shutdown() Stops internal threads and makes cleanup in background.

Methods inherited from class tech.ydb.topic.read.impl.ReaderImpl

getLogger, getStreamName, initImpl, onStreamReconnect

Methods inherited from class tech.ydb.topic.impl.GrpcStreamRetrier

onSessionClosed, shutdownImpl, shutdownImpl

Methods inherited from class java.lang.Object

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

Constructor Detail

AsyncReaderImpl

public AsyncReaderImpl(TopicRpc topicRpc,
                       ReaderSettings settings,
                       ReadEventHandlersSettings handlersSettings)

Method Detail

init

public CompletableFuture<Void> init()

Description copied from interface: AsyncReader

Initialize reading in the background. Non-blocking

Specified by:

init in interface AsyncReader

handleDataReceivedEvent

protected CompletableFuture<Void> handleDataReceivedEvent(DataReceivedEvent event)

Specified by:

handleDataReceivedEvent in class ReaderImpl

handleCommitResponse

protected void handleCommitResponse(long committedOffset,
                                    PartitionSession partitionSession)

Specified by:

handleCommitResponse in class ReaderImpl

handleStartPartitionSessionRequest

protected void handleStartPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest request,
                                                  PartitionSession partitionSession,
                                                  Consumer<StartPartitionSessionSettings> confirmCallback)

Specified by:

handleStartPartitionSessionRequest in class ReaderImpl

handleStopPartitionSession

protected void handleStopPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest request,
                                          @Nullable
                                          Long partitionId,
                                          Runnable confirmCallback)

Specified by:

handleStopPartitionSession in class ReaderImpl

handleClosePartitionSession

protected void handleClosePartitionSession(PartitionSession partitionSession)

Specified by:

handleClosePartitionSession in class ReaderImpl

handleReaderClosed

protected void handleReaderClosed()

onShutdown

protected void onShutdown(String reason)

Overrides:

onShutdown in class ReaderImpl

shutdown

public CompletableFuture<Void> shutdown()

Description copied from interface: AsyncReader

Stops internal threads and makes cleanup in background. Non-blocking

Specified by:

shutdown in interface AsyncReader