Package io.smallrye.reactive.messaging.kafka.impl

Class KafkaRecordStreamSubscription<K,V,T>

java.lang.Object

io.smallrye.reactive.messaging.kafka.impl.KafkaRecordStreamSubscription<K,V,T>

Type Parameters:

K - type of incoming record key

V - type of incoming record payload

T - type of the items to emit downstream

All Implemented Interfaces:

Flow.Subscription

public class KafkaRecordStreamSubscription<K,V,T>
extends Object
implements Flow.Subscription

A Flow.Subscription which, on request(long), polls ConsumerRecords from the given consumer client and emits records downstream.

It uses an internal queue to store records received but not yet emitted downstream. The given enqueue function can flatten the polled ConsumerRecords into individual records or enqueue it as-is.

Constructor Summary

Constructors

Constructor	Description
KafkaRecordStreamSubscription(ReactiveKafkaConsumer<K,V> client, RuntimeKafkaSourceConfiguration config, io.smallrye.mutiny.subscription.MultiSubscriber<? super T> subscriber, io.vertx.core.Context context, int maxPollRecords, BiConsumer<org.apache.kafka.clients.consumer.ConsumerRecords<K,V>,RecordQueue<T>> enqueueFunction)

Method Summary

Modifier and Type	Method	Description
void	cancel()
void	request(long n)

Methods inherited from class java.lang.Object

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

Constructor Details

KafkaRecordStreamSubscription

public KafkaRecordStreamSubscription(ReactiveKafkaConsumer<K,V> client,
 RuntimeKafkaSourceConfiguration config,
 io.smallrye.mutiny.subscription.MultiSubscriber<? super T> subscriber,
 io.vertx.core.Context context,
 int maxPollRecords,
 BiConsumer<org.apache.kafka.clients.consumer.ConsumerRecords<K,V>,RecordQueue<T>> enqueueFunction)

Method Details

request

public void request(long n)

Specified by:

request in interface Flow.Subscription

cancel

public void cancel()

Specified by:

cancel in interface Flow.Subscription