Package io.debezium.connector.spanner.task

Class TaskStateChangeEventProcessor

java.lang.Object

io.debezium.connector.spanner.task.TaskStateChangeEventProcessor

public class TaskStateChangeEventProcessor
extends Object

Owns queue of TaskStateChangeEvent elements, polls them in the separate thread and sends them to TaskStateChangeEventHandler for further processing

Field Summary

Fields

Modifier and Type	Field	Description
private final Consumer<Throwable>	errorHandler
private Thread	eventQueueingThread
private static final org.slf4j.Logger	LOGGER
private final MetricsEventPublisher	metricsEventPublisher
private final BlockingQueue<TaskStateChangeEvent>	queue
private final Duration	sleepInterval
private final TaskStateChangeEventHandler	taskStateChangeEventHandler
private final TaskSyncContextHolder	taskSyncContextHolder
private Thread	thread

Constructor Summary

Constructors

Constructor	Description
TaskStateChangeEventProcessor(int queueCapacity, TaskSyncContextHolder taskSyncContextHolder, TaskStateChangeEventHandler taskStateChangeEventHandler, Consumer<Throwable> errorHandler, MetricsEventPublisher metricsEventPublisher)

Method Summary

Modifier and Type	Method	Description
private Thread	createEventHandlerThread()
private Thread	createEventQueueingThread()
void	processEvent(TaskStateChangeEvent event)
private List<Partition>	removeAlreadyExistingPartitions(List<Partition> partitions)
void	startProcessing()
void	stopProcessing()

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

queue

private final BlockingQueue<TaskStateChangeEvent> queue

taskSyncContextHolder

private final TaskSyncContextHolder taskSyncContextHolder

taskStateChangeEventHandler

private final TaskStateChangeEventHandler taskStateChangeEventHandler

errorHandler

private final Consumer<Throwable> errorHandler

metricsEventPublisher

private final MetricsEventPublisher metricsEventPublisher

thread

private volatile Thread thread

eventQueueingThread

private volatile Thread eventQueueingThread

sleepInterval

private final Duration sleepInterval

Constructor Details

TaskStateChangeEventProcessor

public TaskStateChangeEventProcessor(int queueCapacity,
 TaskSyncContextHolder taskSyncContextHolder,
 TaskStateChangeEventHandler taskStateChangeEventHandler,
 Consumer<Throwable> errorHandler,
 MetricsEventPublisher metricsEventPublisher)

Method Details

createEventQueueingThread

private Thread createEventQueueingThread()

createEventHandlerThread

private Thread createEventHandlerThread()

startProcessing

public void startProcessing()

stopProcessing

public void stopProcessing()

processEvent

public void processEvent(TaskStateChangeEvent event)
                  throws InterruptedException

Throws:

InterruptedException

removeAlreadyExistingPartitions

private List<Partition> removeAlreadyExistingPartitions(List<Partition> partitions)