Package io.debezium.connector.spanner.task

Class SynchronizationTaskContext

java.lang.Object

io.debezium.connector.spanner.task.SynchronizationTaskContext

public class SynchronizationTaskContext
extends Object

This class coordinates between the connector producers and consumers: The RebalancingEventListener producer produces events that are consumed by the RebalanceHandler. The TaskSyncEventListener produces events that are consumed by the SyncEventHandler. The SynchronizedPartitionManager produces events to the queue, which are then consumed from by the TaskStateChangeEventHandler.

Field Summary

Fields

Modifier and Type	Field	Description
private final SpannerConnectorConfig	connectorConfig
private final io.debezium.pipeline.ErrorHandler	errorHandler
private final Runnable	finishingHandler
private final LeaderAction	leaderAction
private final LeaderRebalanceStrategy	leaderRebalanceStrategy
private static final org.slf4j.Logger	LOGGER
private final LowWatermarkCalculationJob	lowWatermarkCalculationJob
private final LowWatermarkStampPublisher	lowWatermarkStampPublisher
private final PartitionFactory	partitionFactory
private final ProducerFactory<String,byte[]>	producerFactory
private final RebalanceHandler	rebalanceHandler
private final RebalancingConsumerFactory<?,?>	rebalancingConsumerFactory
private final RebalancingEventListener	rebalancingEventListener
private final SchemaRegistry	schemaRegistry
private final SyncEventConsumerFactory<String,byte[]>	syncEventConsumerFactory
private final SyncEventHandler	syncEventHandler
private final SpannerConnectorTask	task
private final TaskStateChangeEventHandler	taskStateChangeEventHandler
private final TaskStateChangeEventProcessor	taskStateChangeEventProcessor
private final TaskSyncContextHolder	taskSyncContextHolder
private final TaskSyncEventListener	taskSyncEventListener
private final TaskSyncPublisher	taskSyncPublisher

Constructor Summary

Constructors

Constructor

Description

SynchronizationTaskContext(SpannerConnectorTask task, SpannerConnectorConfig connectorConfig, io.debezium.pipeline.ErrorHandler errorHandler, PartitionOffsetProvider partitionOffsetProvider, ChangeStream changeStream, SpannerEventDispatcher spannerEventDispatcher, KafkaAdminClientFactory adminClientFactory, SchemaRegistry schemaRegistry, Runnable finishingHandler, MetricsEventPublisher metricsEventPublisher, LowWatermarkHolder lowWatermarkHolder)

Method Summary

Modifier and Type	Method	Description
void	destroy()
void	init()
private void	onError(Throwable throwable)
private void	onFinish()
void	publishEvent(TaskStateChangeEvent event)

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

leaderRebalanceStrategy

private final LeaderRebalanceStrategy leaderRebalanceStrategy

syncEventConsumerFactory

private final SyncEventConsumerFactory<String,byte[]> syncEventConsumerFactory

rebalancingConsumerFactory

private final RebalancingConsumerFactory<?,?> rebalancingConsumerFactory

producerFactory

private final ProducerFactory<String,byte[]> producerFactory

leaderAction

private final LeaderAction leaderAction

rebalancingEventListener

private final RebalancingEventListener rebalancingEventListener

taskSyncEventListener

private final TaskSyncEventListener taskSyncEventListener

taskSyncPublisher

private final TaskSyncPublisher taskSyncPublisher

taskSyncContextHolder

private final TaskSyncContextHolder taskSyncContextHolder

taskStateChangeEventHandler

private final TaskStateChangeEventHandler taskStateChangeEventHandler

errorHandler

private final io.debezium.pipeline.ErrorHandler errorHandler

partitionFactory

private final PartitionFactory partitionFactory

lowWatermarkStampPublisher

private final LowWatermarkStampPublisher lowWatermarkStampPublisher

finishingHandler

private final Runnable finishingHandler

taskStateChangeEventProcessor

private final TaskStateChangeEventProcessor taskStateChangeEventProcessor

syncEventHandler

private final SyncEventHandler syncEventHandler

rebalanceHandler

private final RebalanceHandler rebalanceHandler

lowWatermarkCalculationJob

private final LowWatermarkCalculationJob lowWatermarkCalculationJob

schemaRegistry

private final SchemaRegistry schemaRegistry

task

private final SpannerConnectorTask task

connectorConfig

private final SpannerConnectorConfig connectorConfig

Constructor Details

SynchronizationTaskContext

public SynchronizationTaskContext(SpannerConnectorTask task,
 SpannerConnectorConfig connectorConfig,
 io.debezium.pipeline.ErrorHandler errorHandler,
 PartitionOffsetProvider partitionOffsetProvider,
 ChangeStream changeStream,
 SpannerEventDispatcher spannerEventDispatcher,
 KafkaAdminClientFactory adminClientFactory,
 SchemaRegistry schemaRegistry,
 Runnable finishingHandler,
 MetricsEventPublisher metricsEventPublisher,
 LowWatermarkHolder lowWatermarkHolder)

Method Details

init

public void init()

destroy

public void destroy()

publishEvent

public void publishEvent(TaskStateChangeEvent event)
                  throws InterruptedException

Throws:

InterruptedException

onError

private void onError(Throwable throwable)

onFinish

private void onFinish()