Package io.debezium.connector.spanner.db.stream

Class SpannerChangeStream

java.lang.Object

io.debezium.connector.spanner.db.stream.SpannerChangeStream

All Implemented Interfaces:

ChangeStream

public class SpannerChangeStream
extends Object
implements ChangeStream

This class queries the change stream, andd sends the received records to ChangeStream Service. Implementation of ChangeStream

Field Summary

Fields

Modifier and Type	Field	Description
private ChangeStreamEventConsumer	changeStreamEventConsumer
private final AtomicReference<ChangeStreamException>	exception
private final AtomicBoolean	isRunning
private final ReentrantLock	lock
private static final org.slf4j.Logger	LOGGER
private final MetricsEventPublisher	metricsEventPublisher
private PartitionEventListener	partitionEventListener
private final PartitionQueryingMonitor	partitionQueryingMonitor
private final PartitionThreadPool	partitionThreadPool
private final Condition	signal
private final SpannerChangeStreamService	streamService
static final Duration	WAIT_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
SpannerChangeStream(SpannerChangeStreamService streamService, MetricsEventPublisher metricsEventPublisher, Duration heartBeatInterval, int maxMissedHeartbeats)

Method Summary

Modifier and Type	Method	Description
(package private) ChangeStreamException	getStreamException(Partition partition, Exception ex)
(package private) boolean	isCanceled(Exception ex)
(package private) boolean	onError(Partition partition, Exception ex)
(package private) boolean	onError(ChangeStreamException ex)
(package private) void	onStreamEvent(ChangeStreamEvent changeStreamEvent)
(package private) void	onStuckPartition(String token)
void	run(BooleanSupplier runningFlagSupplier, ChangeStreamEventConsumer changeStreamEventConsumer, PartitionEventListener partitionEventListener)
private void	signal()
void	stop()
void	stop(String token)
boolean	submitPartition(Partition partition)

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

WAIT_TIMEOUT

public static final Duration WAIT_TIMEOUT

streamService

private final SpannerChangeStreamService streamService

exception

private final AtomicReference<ChangeStreamException> exception

partitionThreadPool

private final PartitionThreadPool partitionThreadPool

lock

private final ReentrantLock lock

signal

private final Condition signal

metricsEventPublisher

private final MetricsEventPublisher metricsEventPublisher

partitionEventListener

private volatile PartitionEventListener partitionEventListener

changeStreamEventConsumer

private volatile ChangeStreamEventConsumer changeStreamEventConsumer

isRunning

private final AtomicBoolean isRunning

partitionQueryingMonitor

private final PartitionQueryingMonitor partitionQueryingMonitor

Constructor Details

SpannerChangeStream

public SpannerChangeStream(SpannerChangeStreamService streamService,
 MetricsEventPublisher metricsEventPublisher,
 Duration heartBeatInterval,
 int maxMissedHeartbeats)

Method Details

run

public void run(BooleanSupplier runningFlagSupplier,
 ChangeStreamEventConsumer changeStreamEventConsumer,
 PartitionEventListener partitionEventListener)
         throws ChangeStreamException,
InterruptedException

Specified by:

run in interface ChangeStream

Throws:

ChangeStreamException

InterruptedException

submitPartition

public boolean submitPartition(Partition partition)

Specified by:

submitPartition in interface ChangeStream

onStreamEvent

void onStreamEvent(ChangeStreamEvent changeStreamEvent)
            throws InterruptedException

Throws:

InterruptedException

onStuckPartition

void onStuckPartition(String token)
               throws InterruptedException

Throws:

InterruptedException

stop

public void stop(String token)

Specified by:

stop in interface ChangeStream

stop

public void stop()

Specified by:

stop in interface ChangeStream

onError

boolean onError(Partition partition,
 Exception ex)

onError

boolean onError(ChangeStreamException ex)

isCanceled

boolean isCanceled(Exception ex)

getStreamException

ChangeStreamException getStreamException(Partition partition,
 Exception ex)

signal

private void signal()