Package io.debezium.connector.postgresql.transforms.timescaledb

Class TimescaleDb<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

java.lang.Object

io.debezium.connector.postgresql.transforms.timescaledb.TimescaleDb<R>

Type Parameters:

R -

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.kafka.common.Configurable, org.apache.kafka.connect.components.Versioned, org.apache.kafka.connect.transforms.Transformation<R>

public class TimescaleDb<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>
extends Object
implements org.apache.kafka.connect.transforms.Transformation<R>, org.apache.kafka.connect.components.Versioned

Single message transform that modifies records coming from TimescaleDB. It operates on chunks and aggregate's materialized hypertables.

• chunk source info block and topic name is replaced with appropriate hypertable name
• chunks belonging to hypertables acting as materialized aggregates have topic name and source info block updated with aggregate name
• headers are added with original chunk schema/table name and for aggregates with original materialized hypertable schema/table name

Author:

Jiri Pechanec

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HEADER_CHUNK_SCHEMA
static final String	HEADER_CHUNK_TABLE
static final String	HEADER_HYPERTABLE_SCHEMA
static final String	HEADER_HYPERTABLE_TABLE
private static final org.slf4j.Logger	LOGGER
private TimescaleDbMetadata	metadata
private SmtManager<R>	smtManager
private String	topicPrefix

Constructor Summary

Constructors

Constructor	Description
TimescaleDb()

Method Summary

Modifier and Type	Method	Description
private org.apache.kafka.connect.header.Headers	addHeaders(org.apache.kafka.connect.header.Headers headers, TableId chunkId, TableId hypertableId, Optional<TableId> aggregateId)
R	apply(R record)
void	close()
org.apache.kafka.common.config.ConfigDef	config()
void	configure(Map<String,?> configs)
private String	getNewTopicName(TableId newId)
(package private) void	setMetadata(TimescaleDbMetadata metadata)
String	version()

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

HEADER_CHUNK_TABLE

public static final String HEADER_CHUNK_TABLE

See Also:

• Constant Field Values

HEADER_CHUNK_SCHEMA

public static final String HEADER_CHUNK_SCHEMA

See Also:

• Constant Field Values

HEADER_HYPERTABLE_TABLE

public static final String HEADER_HYPERTABLE_TABLE

See Also:

• Constant Field Values

HEADER_HYPERTABLE_SCHEMA

public static final String HEADER_HYPERTABLE_SCHEMA

See Also:

• Constant Field Values

smtManager

private SmtManager<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> smtManager

metadata

private TimescaleDbMetadata metadata

topicPrefix

private String topicPrefix

Constructor Details

TimescaleDb

public TimescaleDb()

Method Details

configure

public void configure(Map<String,?> configs)

Specified by:

configure in interface org.apache.kafka.common.Configurable

apply

public R apply(R record)

Specified by:

apply in interface org.apache.kafka.connect.transforms.Transformation<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

getNewTopicName

private String getNewTopicName(TableId newId)

addHeaders

private org.apache.kafka.connect.header.Headers addHeaders(org.apache.kafka.connect.header.Headers headers,
 TableId chunkId,
 TableId hypertableId,
 Optional<TableId> aggregateId)

config

public org.apache.kafka.common.config.ConfigDef config()

Specified by:

config in interface org.apache.kafka.connect.transforms.Transformation<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface org.apache.kafka.connect.transforms.Transformation<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>

version

public String version()

Specified by:

version in interface org.apache.kafka.connect.components.Versioned

setMetadata

@VisibleForTesting
void setMetadata(TimescaleDbMetadata metadata)