Package io.debezium.connector.jdbc

Class JdbcChangeEventSink

java.lang.Object

io.debezium.connector.jdbc.JdbcChangeEventSink

All Implemented Interfaces:

ChangeEventSink, AutoCloseable

public class JdbcChangeEventSink
extends Object
implements ChangeEventSink

A ChangeEventSink for a JDBC relational database.

Author:

Chris Cranford

Field Summary

Fields

Modifier and Type	Field	Description
private final JdbcSinkConnectorConfig	config
static final String	DETECT_SCHEMA_CHANGE_RECORD_MSG
private final DatabaseDialect	dialect
private static final org.slf4j.Logger	LOGGER
private final RecordWriter	recordWriter
static final String	SCHEMA_CHANGE_VALUE
private final org.hibernate.StatelessSession	session
private final TableNamingStrategy	tableNamingStrategy

Constructor Summary

Constructors

Constructor	Description
JdbcChangeEventSink(JdbcSinkConnectorConfig config, org.hibernate.StatelessSession session, DatabaseDialect dialect, RecordWriter recordWriter)

Method Summary

Modifier and Type	Method	Description
private TableDescriptor	alterTableIfNeeded(TableId tableId, SinkRecordDescriptor record)
private SinkRecordDescriptor	buildRecordSinkDescriptor(org.apache.kafka.connect.sink.SinkRecord record)
private TableDescriptor	checkAndApplyTableChangesIfNeeded(TableId tableId, SinkRecordDescriptor descriptor)
void	close()
private TableDescriptor	createTable(TableId tableId, SinkRecordDescriptor record)
void	execute(Collection<org.apache.kafka.connect.sink.SinkRecord> records)	Executes this sink.
private void	flushBuffer(TableId tableId, List<SinkRecordDescriptor> toFlush)
private void	flushBuffers(Map<TableId,Buffer> bufferByTable)
private String	getSqlStatement(TableDescriptor table, SinkRecordDescriptor record)
private Optional<TableId>	getTableId(org.apache.kafka.connect.sink.SinkRecord record)
private boolean	hasTable(TableId tableId)
private static boolean	isSchemaChange(org.apache.kafka.connect.sink.SinkRecord record)
private TableDescriptor	readTable(TableId tableId)
private Buffer	resolveBuffer(Map<TableId,Buffer> bufferMap, TableId tableId, SinkRecordDescriptor sinkRecordDescriptor)
private void	validate(org.apache.kafka.connect.sink.SinkRecord record)
private void	writeTruncate(String sql)

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

SCHEMA_CHANGE_VALUE

public static final String SCHEMA_CHANGE_VALUE

See Also:

• Constant Field Values

DETECT_SCHEMA_CHANGE_RECORD_MSG

public static final String DETECT_SCHEMA_CHANGE_RECORD_MSG

See Also:

• Constant Field Values

config

private final JdbcSinkConnectorConfig config

dialect

private final DatabaseDialect dialect

session

private final org.hibernate.StatelessSession session

tableNamingStrategy

private final TableNamingStrategy tableNamingStrategy

recordWriter

private final RecordWriter recordWriter

Constructor Details

JdbcChangeEventSink

public JdbcChangeEventSink(JdbcSinkConnectorConfig config,
 org.hibernate.StatelessSession session,
 DatabaseDialect dialect,
 RecordWriter recordWriter)

Method Details

execute

public void execute(Collection<org.apache.kafka.connect.sink.SinkRecord> records)

Description copied from interface: ChangeEventSink

Executes this sink.

Specified by:

execute in interface ChangeEventSink

Parameters:

records - the sink records, never null

validate

private void validate(org.apache.kafka.connect.sink.SinkRecord record)

isSchemaChange

private static boolean isSchemaChange(org.apache.kafka.connect.sink.SinkRecord record)

resolveBuffer

private Buffer resolveBuffer(Map<TableId,Buffer> bufferMap,
 TableId tableId,
 SinkRecordDescriptor sinkRecordDescriptor)

buildRecordSinkDescriptor

private SinkRecordDescriptor buildRecordSinkDescriptor(org.apache.kafka.connect.sink.SinkRecord record)

flushBuffers

private void flushBuffers(Map<TableId,Buffer> bufferByTable)

flushBuffer

private void flushBuffer(TableId tableId,
 List<SinkRecordDescriptor> toFlush)

getTableId

private Optional<TableId> getTableId(org.apache.kafka.connect.sink.SinkRecord record)

close

public void close()

Specified by:

close in interface AutoCloseable

checkAndApplyTableChangesIfNeeded

private TableDescriptor checkAndApplyTableChangesIfNeeded(TableId tableId,
 SinkRecordDescriptor descriptor)
                                                   throws SQLException

Throws:

SQLException

hasTable

private boolean hasTable(TableId tableId)

readTable

private TableDescriptor readTable(TableId tableId)

createTable

private TableDescriptor createTable(TableId tableId,
 SinkRecordDescriptor record)
                             throws SQLException

Throws:

SQLException

alterTableIfNeeded

private TableDescriptor alterTableIfNeeded(TableId tableId,
 SinkRecordDescriptor record)
                                    throws SQLException

Throws:

SQLException

getSqlStatement

private String getSqlStatement(TableDescriptor table,
 SinkRecordDescriptor record)

writeTruncate

private void writeTruncate(String sql)
                    throws SQLException

Throws:

SQLException