Package io.debezium.transforms.outbox

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

java.lang.Object

io.debezium.transforms.outbox.EventRouter<R>

All Implemented Interfaces:

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

@Incubating
public class EventRouter<R extends org.apache.kafka.connect.connector.ConnectRecord<R>>
extends Object
implements org.apache.kafka.connect.transforms.Transformation<R>

Debezium Outbox Transform Event Router

Author:

Renato mefi (gh@mefi.in)

Field Summary

Fields

Modifier and Type	Field	Description
private List<EventRouterConfigDefinition.AdditionalField>	additionalFields
private org.apache.kafka.connect.transforms.ExtractField<R>	afterExtractor
private org.apache.kafka.connect.data.Schema	defaultValueSchema
private static String	ENVELOPE_PAYLOAD
private String	fieldEventId
private String	fieldEventKey
private String	fieldEventTimestamp
private String	fieldPayload
private String	fieldPayloadId
private String	fieldSchemaVersion
private EventRouterConfigDefinition.InvalidOperationBehavior	invalidOperationBehavior
private static org.slf4j.Logger	LOGGER
private boolean	onlyHeadersInOutputMessage
private org.apache.kafka.connect.transforms.RegexRouter<R>	regexRouter
private String	routeByField
private boolean	routeTombstoneOnEmptyPayload
private SmtManager<R>	smtManager
private ActivateTracingSpan<R>	tracingSmt
private Map<Integer,org.apache.kafka.connect.data.Schema>	versionedValueSchema

Constructor Summary

Constructors

Constructor	Description
EventRouter()

Method Summary

Modifier and Type	Method	Description
R	apply(R r)
void	close()
org.apache.kafka.common.config.ConfigDef	config()
void	configure(Map<String,?> configMap)
private Object	defineRecordKey(org.apache.kafka.connect.data.Struct eventStruct, Object fallbackKey)
private org.apache.kafka.connect.data.Schema	defineRecordKeySchema(org.apache.kafka.connect.data.Schema eventStruct, org.apache.kafka.connect.data.Field fallbackKeyField)
private Long	getEventTimestampMs(org.apache.kafka.connect.data.Struct debeziumEventValue, org.apache.kafka.connect.data.Struct eventStruct)	Returns the Kafka record timestamp for the outgoing record.
private org.apache.kafka.connect.data.SchemaBuilder	getSchemaBuilder(org.apache.kafka.connect.data.Schema debeziumEventSchema, String routedTopic)
private String	getSchemaName(org.apache.kafka.connect.data.Schema debeziumEventSchema, String routedTopic)
private org.apache.kafka.connect.data.Schema	getValueSchema(org.apache.kafka.connect.data.Schema debeziumEventSchema, Integer version, String routedTopic)
private org.apache.kafka.connect.data.Schema	getValueSchema(org.apache.kafka.connect.data.Schema debeziumEventSchema, String routedTopic)
private void	handleUnexpectedOperation(R r)

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

ENVELOPE_PAYLOAD

private static final String ENVELOPE_PAYLOAD

See Also:

Constant Field Values

afterExtractor

private final org.apache.kafka.connect.transforms.ExtractField<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> afterExtractor

regexRouter

private final org.apache.kafka.connect.transforms.RegexRouter<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> regexRouter

invalidOperationBehavior

private EventRouterConfigDefinition.InvalidOperationBehavior invalidOperationBehavior

tracingSmt

private final ActivateTracingSpan<R extends org.apache.kafka.connect.connector.ConnectRecord<R>> tracingSmt

fieldEventId

private String fieldEventId

fieldEventKey

private String fieldEventKey

fieldEventTimestamp

private String fieldEventTimestamp

fieldPayload

private String fieldPayload

fieldPayloadId

private String fieldPayloadId

fieldSchemaVersion

private String fieldSchemaVersion

routeByField

private String routeByField

routeTombstoneOnEmptyPayload

private boolean routeTombstoneOnEmptyPayload

additionalFields

private List<EventRouterConfigDefinition.AdditionalField> additionalFields

defaultValueSchema

private org.apache.kafka.connect.data.Schema defaultValueSchema

versionedValueSchema

private final Map<Integer,org.apache.kafka.connect.data.Schema> versionedValueSchema

onlyHeadersInOutputMessage

private boolean onlyHeadersInOutputMessage

smtManager

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

Constructor Detail

EventRouter

public EventRouter()

Method Detail

apply

public R apply(R r)

Specified by:

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

getEventTimestampMs

private Long getEventTimestampMs(org.apache.kafka.connect.data.Struct debeziumEventValue,
                                 org.apache.kafka.connect.data.Struct eventStruct)

Returns the Kafka record timestamp for the outgoing record. Either obtained from the configured field or the timestamp when Debezium processed the event.

defineRecordKeySchema

private org.apache.kafka.connect.data.Schema defineRecordKeySchema(org.apache.kafka.connect.data.Schema eventStruct,
                                                                   org.apache.kafka.connect.data.Field fallbackKeyField)

defineRecordKey

private Object defineRecordKey(org.apache.kafka.connect.data.Struct eventStruct,
                               Object fallbackKey)

handleUnexpectedOperation

private void handleUnexpectedOperation(R r)

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>>

configure

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

Specified by:

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

getValueSchema

private org.apache.kafka.connect.data.Schema getValueSchema(org.apache.kafka.connect.data.Schema debeziumEventSchema,
                                                            String routedTopic)

getValueSchema

private org.apache.kafka.connect.data.Schema getValueSchema(org.apache.kafka.connect.data.Schema debeziumEventSchema,
                                                            Integer version,
                                                            String routedTopic)

getSchemaBuilder

private org.apache.kafka.connect.data.SchemaBuilder getSchemaBuilder(org.apache.kafka.connect.data.Schema debeziumEventSchema,
                                                                     String routedTopic)

getSchemaName

private String getSchemaName(org.apache.kafka.connect.data.Schema debeziumEventSchema,
                             String routedTopic)