Package io.smallrye.reactive.messaging.kafka.fault

Class KafkaDeadLetterQueue

java.lang.Object

io.smallrye.reactive.messaging.kafka.fault.KafkaDeadLetterQueue

All Implemented Interfaces:

KafkaFailureHandler

public class KafkaDeadLetterQueue
extends Object
implements KafkaFailureHandler

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	KafkaDeadLetterQueue.Factory

Nested classes/interfaces inherited from interface io.smallrye.reactive.messaging.kafka.fault.KafkaFailureHandler

KafkaFailureHandler.Strategy

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CHANNEL_DLQ_SUFFIX
static final String	DEAD_LETTER_CAUSE
static final String	DEAD_LETTER_CAUSE_CLASS_NAME
static final String	DEAD_LETTER_EXCEPTION_CLASS_NAME
static final String	DEAD_LETTER_OFFSET
static final String	DEAD_LETTER_PARTITION
static final String	DEAD_LETTER_REASON
static final String	DEAD_LETTER_TOPIC

Constructor Summary

Constructors

Constructor	Description
KafkaDeadLetterQueue(String channel, String topic, KafkaSink dlqSink, io.smallrye.mutiny.operators.multi.processors.UnicastProcessor<org.eclipse.microprofile.reactive.messaging.Message<?>> dlqSource)

Method Summary

Modifier and Type	Method	Description
<K, V> io.smallrye.mutiny.Uni<Void>	handle(IncomingKafkaRecord<K,V> record, Throwable reason, org.eclipse.microprofile.reactive.messaging.Metadata metadata)	Handle message negative-acknowledgment
void	terminate()	Called on channel shutdown

Methods inherited from class java.lang.Object

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

Field Details

DEAD_LETTER_EXCEPTION_CLASS_NAME

public static final String DEAD_LETTER_EXCEPTION_CLASS_NAME

See Also:

• Constant Field Values

DEAD_LETTER_CAUSE_CLASS_NAME

public static final String DEAD_LETTER_CAUSE_CLASS_NAME

See Also:

• Constant Field Values

DEAD_LETTER_REASON

public static final String DEAD_LETTER_REASON

See Also:

• Constant Field Values

DEAD_LETTER_CAUSE

public static final String DEAD_LETTER_CAUSE

See Also:

• Constant Field Values

DEAD_LETTER_TOPIC

public static final String DEAD_LETTER_TOPIC

See Also:

• Constant Field Values

DEAD_LETTER_OFFSET

public static final String DEAD_LETTER_OFFSET

See Also:

• Constant Field Values

DEAD_LETTER_PARTITION

public static final String DEAD_LETTER_PARTITION

See Also:

• Constant Field Values

CHANNEL_DLQ_SUFFIX

public static final String CHANNEL_DLQ_SUFFIX

See Also:

• Constant Field Values

Constructor Details

KafkaDeadLetterQueue

public KafkaDeadLetterQueue(String channel,
 String topic,
 KafkaSink dlqSink,
 io.smallrye.mutiny.operators.multi.processors.UnicastProcessor<org.eclipse.microprofile.reactive.messaging.Message<?>> dlqSource)

Method Details

handle

public <K,
V> io.smallrye.mutiny.Uni<Void> handle(IncomingKafkaRecord<K,V> record,
 Throwable reason,
 org.eclipse.microprofile.reactive.messaging.Metadata metadata)

Description copied from interface: KafkaFailureHandler

Handle message negative-acknowledgment

Specified by:

handle in interface KafkaFailureHandler

Type Parameters:

K - type of record key

V - type of record value

Parameters:

record - incoming Kafka record

reason - nack reason

metadata - associated metadata with negative-acknowledgment

Returns:

a completion stage completed when the message is negative-acknowledgement has completed.

terminate

public void terminate()

Description copied from interface: KafkaFailureHandler

Called on channel shutdown

Specified by:

terminate in interface KafkaFailureHandler