Package io.debezium.connector.spanner.task

Class LowWatermarkCalculator

java.lang.Object

io.debezium.connector.spanner.task.LowWatermarkCalculator

public class LowWatermarkCalculator
extends Object

Calculates watermark based on offsets of all partitions

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOGGER
private static final long	OFFSET_MONITORING_LAG_MAX_MS
private final PartitionOffsetProvider	partitionOffsetProvider
private final SpannerConnectorConfig	spannerConnectorConfig
private final TaskSyncContextHolder	taskSyncContextHolder

Constructor Summary

Constructors

Constructor	Description
LowWatermarkCalculator(SpannerConnectorConfig spannerConnectorConfig, TaskSyncContextHolder taskSyncContextHolder, PartitionOffsetProvider partitionOffsetProvider)

Method Summary

Modifier and Type	Method	Description
com.google.cloud.Timestamp	calculateLowWatermark(boolean printOffsets)
private Set<String>	checkDuplication(Map<String,List<PartitionState>> map)
private void	monitorOffsets(Map<String,com.google.cloud.Timestamp> offsets, Map<String,PartitionState> allPartitions)

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

OFFSET_MONITORING_LAG_MAX_MS

private static final long OFFSET_MONITORING_LAG_MAX_MS

See Also:

• Constant Field Values

taskSyncContextHolder

private final TaskSyncContextHolder taskSyncContextHolder

spannerConnectorConfig

private final SpannerConnectorConfig spannerConnectorConfig

partitionOffsetProvider

private final PartitionOffsetProvider partitionOffsetProvider

Constructor Details

LowWatermarkCalculator

public LowWatermarkCalculator(SpannerConnectorConfig spannerConnectorConfig,
 TaskSyncContextHolder taskSyncContextHolder,
 PartitionOffsetProvider partitionOffsetProvider)

Method Details

calculateLowWatermark

public com.google.cloud.Timestamp calculateLowWatermark(boolean printOffsets)

monitorOffsets

private void monitorOffsets(Map<String,com.google.cloud.Timestamp> offsets,
 Map<String,PartitionState> allPartitions)

checkDuplication

private Set<String> checkDuplication(Map<String,List<PartitionState>> map)