Package io.debezium.connector.spanner.task

Class TaskStateChangeEventHandler

java.lang.Object

io.debezium.connector.spanner.task.TaskStateChangeEventHandler

public class TaskStateChangeEventHandler
extends Object

This class processes all types of TaskStateChangeEvents (i.e. LastCommitTimestampUpdateEvent, NewPartitionsEvent, NewSchemaEvent, PartitionStatusUpdateEvent, SyncEvent, TaskStateChangeEvent). This class is also responsible for sending change stream partitions that are ready to be streamed to SynchronizedPartitionManager.

Field Summary

Fields

Modifier and Type	Field	Description
private final ChangeStream	changeStream
private final SpannerConnectorConfig	connectorConfig
private final Consumer<RuntimeException>	errorHandler
private final AtomicLong	failOverloadedTaskTimer
private final Runnable	finishingHandler
private static final org.slf4j.Logger	LOGGER
private final PartitionFactory	partitionFactory
private final SpannerEventDispatcher	spannerEventDispatcher
private final TaskSyncContextHolder	taskSyncContextHolder
private final TaskSyncPublisher	taskSyncPublisher

Constructor Summary

Constructors

Constructor	Description
TaskStateChangeEventHandler(TaskSyncContextHolder taskSyncContextHolder, TaskSyncPublisher taskSyncPublisher, ChangeStream changeStream, PartitionFactory partitionFactory, SpannerEventDispatcher spannerEventDispatcher, Runnable finishingHandler, SpannerConnectorConfig connectorConfig, Consumer<RuntimeException> errorHandler)

Method Summary

Modifier and Type	Method	Description
private void	checkToFailOverloadedTask(TaskSyncContext taskSyncContext)
private void	failOverloadedTaskByTimer(TaskSyncContext taskSyncContext)
private TaskSyncContext	performOperation(Operation... operations)
private void	processEvent(NewPartitionsEvent newPartitionsEvent)
private void	processEvent(PartitionStatusUpdateEvent event)
void	processEvent(TaskStateChangeEvent syncEvent)
private void	processSyncEvent()

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

taskSyncContextHolder

private final TaskSyncContextHolder taskSyncContextHolder

taskSyncPublisher

private final TaskSyncPublisher taskSyncPublisher

changeStream

private final ChangeStream changeStream

partitionFactory

private final PartitionFactory partitionFactory

finishingHandler

private final Runnable finishingHandler

connectorConfig

private final SpannerConnectorConfig connectorConfig

spannerEventDispatcher

private final SpannerEventDispatcher spannerEventDispatcher

errorHandler

private final Consumer<RuntimeException> errorHandler

failOverloadedTaskTimer

private final AtomicLong failOverloadedTaskTimer

Constructor Details

TaskStateChangeEventHandler

public TaskStateChangeEventHandler(TaskSyncContextHolder taskSyncContextHolder,
 TaskSyncPublisher taskSyncPublisher,
 ChangeStream changeStream,
 PartitionFactory partitionFactory,
 SpannerEventDispatcher spannerEventDispatcher,
 Runnable finishingHandler,
 SpannerConnectorConfig connectorConfig,
 Consumer<RuntimeException> errorHandler)

Method Details

processEvent

public void processEvent(TaskStateChangeEvent syncEvent)
                  throws InterruptedException

Throws:

InterruptedException

processEvent

private void processEvent(PartitionStatusUpdateEvent event)
                   throws InterruptedException

Throws:

InterruptedException

processEvent

private void processEvent(NewPartitionsEvent newPartitionsEvent)
                   throws InterruptedException

Throws:

InterruptedException

processSyncEvent

private void processSyncEvent()
                       throws InterruptedException

Throws:

InterruptedException

failOverloadedTaskByTimer

private void failOverloadedTaskByTimer(TaskSyncContext taskSyncContext)

checkToFailOverloadedTask

private void checkToFailOverloadedTask(TaskSyncContext taskSyncContext)

performOperation

private TaskSyncContext performOperation(Operation... operations)
                                  throws InterruptedException

Throws:

InterruptedException