Package io.debezium.connector.binlog

Class BinlogSourceTask<P extends Partition,O extends OffsetContext>

java.lang.Object

org.apache.kafka.connect.source.SourceTask

io.debezium.connector.common.BaseSourceTask<P,O>

io.debezium.connector.binlog.BinlogSourceTask<P,O>

All Implemented Interfaces:

org.apache.kafka.connect.connector.Task

public abstract class BinlogSourceTask<P extends Partition,O extends OffsetContext>
extends BaseSourceTask<P,O>

Abstract base class for all binlog-based source tasks.

Author:

Chris Cranford

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BinlogSourceTask.BinlogHeartbeatErrorHandler	Common heartbeat error handler for binlog-based connectors.

Nested classes/interfaces inherited from class io.debezium.connector.common.BaseSourceTask

BaseSourceTask.State

Nested classes/interfaces inherited from class org.apache.kafka.connect.source.SourceTask

org.apache.kafka.connect.source.SourceTask.TransactionBoundary

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOGGER

Fields inherited from class io.debezium.connector.common.BaseSourceTask

coordinator

Fields inherited from class org.apache.kafka.connect.source.SourceTask

context, TRANSACTION_BOUNDARY_CONFIG

Constructor Summary

Constructors

Constructor	Description
BinlogSourceTask()

Method Summary

Modifier and Type	Method	Description
protected abstract Long	getReadOnlyIncrementalSnapshotSignalOffset(O previousOffset)	Obtain the read-only incremental snapshot signal offset.
protected void	resetOffset(BinlogConnectorConfig connectorConfig, O previousOffset, SignalProcessor<P,O> signalProcessor)	Reset the specified offset.
protected void	validateBinlogConfiguration(io.debezium.spi.snapshot.Snapshotter snapshotter, BinlogConnectorConnection connection)	Validates the binlog configuration.
protected boolean	validateSnapshotFeasibility(io.debezium.spi.snapshot.Snapshotter snapshotter, O offsetContext, BinlogConnectorConnection connection)	Validates the feasibility of snapshot.

Methods inherited from class io.debezium.connector.common.BaseSourceTask

commit, commitRecord, doPoll, doStop, getAllConfigurationFields, getAvailableSignalChannels, getNotificationChannels, getPreviousOffsets, getTaskState, isLogPositionAvailable, logStatistics, poll, registerServiceProviders, resetErrorHandlerRetriesIfNeeded, start, start, stop, validateAndLoadSchemaHistory, withMaskedSensitiveOptions

Methods inherited from class org.apache.kafka.connect.source.SourceTask

commitRecord, initialize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.kafka.connect.connector.Task

version

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

Constructor Details

BinlogSourceTask

public BinlogSourceTask()

Method Details

validateSnapshotFeasibility

protected boolean validateSnapshotFeasibility(io.debezium.spi.snapshot.Snapshotter snapshotter,
 O offsetContext,
 BinlogConnectorConnection connection)

Validates the feasibility of snapshot.

Parameters:

snapshotter - the snapshotter, should not be null

offsetContext - the offset context, may be null

connection - the database connection, should not be null

Returns:

validates whether a snapshot can be taken

validateBinlogConfiguration

protected void validateBinlogConfiguration(io.debezium.spi.snapshot.Snapshotter snapshotter,
 BinlogConnectorConnection connection)

Validates the binlog configuration.

Parameters:

snapshotter - the snapshotter, should ont be null

connection - the database connection, should not be null

resetOffset

protected void resetOffset(BinlogConnectorConfig connectorConfig,
 O previousOffset,
 SignalProcessor<P,O> signalProcessor)

Reset the specified offset.

Parameters:

connectorConfig - the connector configuration, should not be null

previousOffset - the previous offsets

signalProcessor - the signal processor, should not be null

getReadOnlyIncrementalSnapshotSignalOffset

protected abstract Long getReadOnlyIncrementalSnapshotSignalOffset(O previousOffset)

Obtain the read-only incremental snapshot signal offset.

Parameters:

previousOffset - the previous offsets

Returns:

the read-only incremental snapshot signal offset