Package io.debezium.connector.mysql

Class MySqlConnectorTask

java.lang.Object

org.apache.kafka.connect.source.SourceTask

io.debezium.connector.common.BaseSourceTask<MySqlPartition,MySqlOffsetContext>

io.debezium.connector.mysql.MySqlConnectorTask

All Implemented Interfaces:

org.apache.kafka.connect.connector.Task

public class MySqlConnectorTask
extends BaseSourceTask<MySqlPartition,MySqlOffsetContext>

The main task executing streaming from MySQL. Responsible for lifecycle management of the streaming code.

Author:

Jiri Pechanec

Nested Class Summary

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 MySqlConnection	connection
private static final String	CONTEXT_NAME
private ErrorHandler	errorHandler
private static final org.slf4j.Logger	LOGGER
private ChangeEventQueue<DataChangeEvent>	queue
private MySqlDatabaseSchema	schema
private MySqlTaskContext	taskContext

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
MySqlConnectorTask()

Method Summary

Modifier and Type	Method	Description
List<org.apache.kafka.connect.source.SourceRecord>	doPoll()
protected void	doStop()
protected Iterable<Field>	getAllConfigurationFields()
private MySqlValueConverters	getValueConverters(MySqlConnectorConfig configuration)
protected boolean	isBinlogAvailable(MySqlConnectorConfig config, MySqlOffsetContext offset)	Determine whether the binlog position as set on the MySqlOffsetContext is available in the server.
ChangeEventSourceCoordinator<MySqlPartition,MySqlOffsetContext>	start(Configuration configuration)
private boolean	validateAndLoadSchemaHistory(MySqlConnectorConfig config, MySqlPartition partition, MySqlOffsetContext offset, MySqlDatabaseSchema schema)
private void	validateBinlogConfiguration(MySqlConnectorConfig config)
private boolean	validateSnapshotFeasibility(MySqlConnectorConfig config, MySqlOffsetContext offset)
String	version()

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

commit, commitRecord, getPreviousOffsets, getTaskState, logStatistics, poll, start, stop, 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

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

CONTEXT_NAME

private static final String CONTEXT_NAME

See Also:

• Constant Field Values

taskContext

private volatile MySqlTaskContext taskContext

queue

private volatile ChangeEventQueue<DataChangeEvent> queue

connection

private volatile MySqlConnection connection

errorHandler

private volatile ErrorHandler errorHandler

schema

private volatile MySqlDatabaseSchema schema

Constructor Details

MySqlConnectorTask

public MySqlConnectorTask()

Method Details

version

public String version()

start

public ChangeEventSourceCoordinator<MySqlPartition,MySqlOffsetContext> start(Configuration configuration)

Specified by:

start in class BaseSourceTask<MySqlPartition,MySqlOffsetContext>

getValueConverters

private MySqlValueConverters getValueConverters(MySqlConnectorConfig configuration)

doPoll

public List<org.apache.kafka.connect.source.SourceRecord> doPoll()
                                                          throws InterruptedException

Specified by:

doPoll in class BaseSourceTask<MySqlPartition,MySqlOffsetContext>

Throws:

InterruptedException

doStop

protected void doStop()

Specified by:

doStop in class BaseSourceTask<MySqlPartition,MySqlOffsetContext>

getAllConfigurationFields

protected Iterable<Field> getAllConfigurationFields()

Specified by:

getAllConfigurationFields in class BaseSourceTask<MySqlPartition,MySqlOffsetContext>

validateBinlogConfiguration

private void validateBinlogConfiguration(MySqlConnectorConfig config)

isBinlogAvailable

protected boolean isBinlogAvailable(MySqlConnectorConfig config,
 MySqlOffsetContext offset)

Determine whether the binlog position as set on the MySqlOffsetContext is available in the server.

Returns:

true if the server has the binlog coordinates, or false otherwise

validateAndLoadSchemaHistory

private boolean validateAndLoadSchemaHistory(MySqlConnectorConfig config,
 MySqlPartition partition,
 MySqlOffsetContext offset,
 MySqlDatabaseSchema schema)

validateSnapshotFeasibility

private boolean validateSnapshotFeasibility(MySqlConnectorConfig config,
 MySqlOffsetContext offset)