io.debezium.connector.oracle

Class OracleSnapshotChangeEventSource

java.lang.Object

io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

io.debezium.connector.oracle.OracleSnapshotChangeEventSource

All Implemented Interfaces:

io.debezium.pipeline.source.spi.ChangeEventSource, io.debezium.pipeline.source.spi.SnapshotChangeEventSource

public class OracleSnapshotChangeEventSource
extends io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

A StreamingChangeEventSource for Oracle.

Author:

Gunnar Morling

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	OracleSnapshotChangeEventSource.OracleSnapshotContext Mutable context which is populated in the course of snapshotting.

Nested classes/interfaces inherited from class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext, io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask

Nested classes/interfaces inherited from interface io.debezium.pipeline.source.spi.ChangeEventSource

io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext

Field Summary

Fields

Modifier and Type	Field and Description
private io.debezium.util.Clock	clock
private OracleConnectorConfig	connectorConfig
private OracleConnection	jdbcConnection
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
OracleSnapshotChangeEventSource(OracleConnectorConfig connectorConfig, OracleOffsetContext previousOffset, OracleConnection jdbcConnection, OracleDatabaseSchema schema, io.debezium.pipeline.EventDispatcher<io.debezium.relational.TableId> dispatcher, io.debezium.util.Clock clock, io.debezium.pipeline.source.spi.SnapshotProgressListener snapshotProgressListener)

Method Summary

Modifier and Type	Method and Description
private boolean	areSameTimestamp(Long scn1, long scn2) Whether the two SCNs represent the same timestamp or not (resolution is only 3 seconds).
protected void	complete(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	determineSnapshotOffset(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
protected Set<io.debezium.relational.TableId>	getAllTableIds(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
protected io.debezium.pipeline.spi.ChangeRecordEmitter	getChangeRecordEmitter(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, Object[] row)
protected io.debezium.schema.SchemaChangeEvent	getCreateTableEvent(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, io.debezium.relational.Table table)
private long	getCurrentScn(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
private Optional<Long>	getLatestTableDdlScn(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx) Returns the SCN of the latest DDL change to the captured tables.
protected String	getSnapshotSelect(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext, io.debezium.relational.TableId tableId)
protected io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask	getSnapshottingTask(io.debezium.pipeline.spi.OffsetContext previousOffset)
protected void	lockTablesForSchemaSnapshot(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext sourceContext, io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext	prepare(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext context)
protected void	readTableStructure(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext sourceContext, io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
protected void	releaseSchemaSnapshotLocks(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)

Methods inherited from class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

connectionCreated, execute, getClock

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

connectorConfig

private final OracleConnectorConfig connectorConfig

jdbcConnection

private final OracleConnection jdbcConnection

clock

private final io.debezium.util.Clock clock

Constructor Detail

OracleSnapshotChangeEventSource

public OracleSnapshotChangeEventSource(OracleConnectorConfig connectorConfig,
                                       OracleOffsetContext previousOffset,
                                       OracleConnection jdbcConnection,
                                       OracleDatabaseSchema schema,
                                       io.debezium.pipeline.EventDispatcher<io.debezium.relational.TableId> dispatcher,
                                       io.debezium.util.Clock clock,
                                       io.debezium.pipeline.source.spi.SnapshotProgressListener snapshotProgressListener)

Method Detail

getSnapshottingTask

protected io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshottingTask getSnapshottingTask(io.debezium.pipeline.spi.OffsetContext previousOffset)

Specified by:

getSnapshottingTask in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

prepare

protected io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext prepare(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext context)
                                                                                                throws Exception

Specified by:

prepare in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

getAllTableIds

protected Set<io.debezium.relational.TableId> getAllTableIds(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                                                      throws Exception

Specified by:

getAllTableIds in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

lockTablesForSchemaSnapshot

protected void lockTablesForSchemaSnapshot(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext sourceContext,
                                           io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                                    throws SQLException,
                                           InterruptedException

Specified by:

lockTablesForSchemaSnapshot in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

releaseSchemaSnapshotLocks

protected void releaseSchemaSnapshotLocks(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                                   throws SQLException

Specified by:

releaseSchemaSnapshotLocks in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

determineSnapshotOffset

protected void determineSnapshotOffset(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                                throws Exception

Specified by:

determineSnapshotOffset in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

Exception

getCurrentScn

private long getCurrentScn(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                    throws SQLException

Throws:

SQLException

areSameTimestamp

private boolean areSameTimestamp(Long scn1,
                                 long scn2)
                          throws SQLException

Whether the two SCNs represent the same timestamp or not (resolution is only 3 seconds).

Throws:

SQLException

getLatestTableDdlScn

private Optional<Long> getLatestTableDdlScn(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext ctx)
                                     throws SQLException

Returns the SCN of the latest DDL change to the captured tables. The result will be empty if there's no table to capture as per the configuration.

Throws:

SQLException

readTableStructure

protected void readTableStructure(io.debezium.pipeline.source.spi.ChangeEventSource.ChangeEventSourceContext sourceContext,
                                  io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)
                           throws SQLException,
                                  InterruptedException

Specified by:

readTableStructure in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

InterruptedException

getCreateTableEvent

protected io.debezium.schema.SchemaChangeEvent getCreateTableEvent(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                                                   io.debezium.relational.Table table)
                                                            throws SQLException

Specified by:

getCreateTableEvent in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

Throws:

SQLException

getSnapshotSelect

protected String getSnapshotSelect(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                   io.debezium.relational.TableId tableId)

Specified by:

getSnapshotSelect in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

getChangeRecordEmitter

protected io.debezium.pipeline.spi.ChangeRecordEmitter getChangeRecordEmitter(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext,
                                                                              Object[] row)

Specified by:

getChangeRecordEmitter in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource

complete

protected void complete(io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource.SnapshotContext snapshotContext)

Specified by:

complete in class io.debezium.relational.HistorizedRelationalSnapshotChangeEventSource