tech.ydb.topic.read.impl

Class ReaderImpl

java.lang.Object

tech.ydb.topic.impl.GrpcStreamRetrier

tech.ydb.topic.read.impl.ReaderImpl

Direct Known Subclasses:

AsyncReaderImpl, SyncReaderImpl

public abstract class ReaderImpl
extends GrpcStreamRetrier

Author:

Nikolay Perfilov

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	ReaderImpl.ReadSessionImpl

Field Summary

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

id, isReconnecting, isStopped, reconnectCounter

Constructor Summary

Constructors

Constructor and Description
ReaderImpl(TopicRpc topicRpc, ReaderSettings settings)

Method Summary

Modifier and Type	Method and Description
protected org.slf4j.Logger	getLogger()
protected String	getStreamName()
protected abstract void	handleClosePartitionSession(PartitionSession partitionSession)
protected abstract void	handleCommitResponse(long committedOffset, PartitionSession partitionSession)
protected abstract CompletableFuture<Void>	handleDataReceivedEvent(DataReceivedEvent event)
protected abstract void	handleStartPartitionSessionRequest(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StartPartitionSessionRequest request, PartitionSession partitionSession, Consumer<StartPartitionSessionSettings> confirmCallback)
protected abstract void	handleStopPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest request, PartitionSession partitionSession, Runnable confirmCallback)
protected CompletableFuture<Void>	initImpl()
protected void	onShutdown(String reason)
protected void	onStreamReconnect()
protected CompletableFuture<Status>	sendUpdateOffsetsInTransaction(YdbTransaction transaction, Map<String,List<PartitionOffsets>> offsets, UpdateOffsetsInTransactionSettings settings)

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

generateRandomId, onSessionClosed, shutdownImpl, shutdownImpl

Methods inherited from class java.lang.Object

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

Constructor Detail

ReaderImpl

public ReaderImpl(TopicRpc topicRpc,
                  ReaderSettings settings)

Method Detail

getLogger

protected org.slf4j.Logger getLogger()

Specified by:

getLogger in class GrpcStreamRetrier

getStreamName

protected String getStreamName()

Specified by:

getStreamName in class GrpcStreamRetrier

initImpl

protected CompletableFuture<Void> initImpl()

handleDataReceivedEvent

protected abstract CompletableFuture<Void> handleDataReceivedEvent(DataReceivedEvent event)

handleCommitResponse

protected abstract void handleCommitResponse(long committedOffset,
                                             PartitionSession partitionSession)

handleStartPartitionSessionRequest

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

handleStopPartitionSession

protected abstract void handleStopPartitionSession(tech.ydb.proto.topic.YdbTopic.StreamReadMessage.StopPartitionSessionRequest request,
                                                   PartitionSession partitionSession,
                                                   Runnable confirmCallback)

handleClosePartitionSession

protected abstract void handleClosePartitionSession(PartitionSession partitionSession)

onStreamReconnect

protected void onStreamReconnect()

Specified by:

onStreamReconnect in class GrpcStreamRetrier

onShutdown

protected void onShutdown(String reason)

Specified by:

onShutdown in class GrpcStreamRetrier

sendUpdateOffsetsInTransaction

protected CompletableFuture<Status> sendUpdateOffsetsInTransaction(YdbTransaction transaction,
                                                                   Map<String,List<PartitionOffsets>> offsets,
                                                                   UpdateOffsetsInTransactionSettings settings)