io.smallrye.reactive.messaging.kafka.impl

Class ReactiveKafkaProducer<K,V>

java.lang.Object

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

All Implemented Interfaces:

KafkaProducer<K,V>

public class ReactiveKafkaProducer<K,V>
extends Object
implements KafkaProducer<K,V>

Constructor Summary

Constructors

Constructor and Description
ReactiveKafkaProducer(KafkaConnectorOutgoingConfiguration config)

Method Summary

Modifier and Type	Method and Description
void	close()
Map<String,?>	configuration()
io.smallrye.mutiny.Uni<Void>	flush() Sends all buffered records immediately.
String	get(String attribute)
io.smallrye.mutiny.Uni<List<org.apache.kafka.common.PartitionInfo>>	partitionsFor(String topic) Returns a list of partition metadata for given topic.
io.smallrye.mutiny.Uni<Void>	runOnSendingThread(Consumer<org.apache.kafka.clients.producer.Producer<K,V>> action) Runs an action on the sending thread.
<T> io.smallrye.mutiny.Uni<T>	runOnSendingThread(Function<org.apache.kafka.clients.producer.Producer<K,V>,T> action) Runs an action on the sending thread.
io.smallrye.mutiny.Uni<org.apache.kafka.clients.producer.RecordMetadata>	send(org.apache.kafka.clients.producer.ProducerRecord<K,V> record) Send a record to a topic.
org.apache.kafka.clients.producer.Producer<K,V>	unwrap()

Methods inherited from class java.lang.Object

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

Constructor Detail

ReactiveKafkaProducer

public ReactiveKafkaProducer(KafkaConnectorOutgoingConfiguration config)

Method Detail

runOnSendingThread

public <T> io.smallrye.mutiny.Uni<T> runOnSendingThread(Function<org.apache.kafka.clients.producer.Producer<K,V>,T> action)

Description copied from interface: KafkaProducer

Runs an action on the sending thread.

The action is a function taking as parameter the Producer and that returns a result (potentially null). The produced Uni emits the returned result when the action completes. If the action throws an exception, the produced Uni emits the exception as failure.

If the action does not return a result, use KafkaProducer.runOnSendingThread(java.util.function.Consumer).

Specified by:

runOnSendingThread in interface KafkaProducer<K,V>

Type Parameters:

T - the type of result, can be Void

Parameters:

action - the action to execute, must not be null

Returns:

the Uni emitting the result or the failure when the action completes.

runOnSendingThread

public io.smallrye.mutiny.Uni<Void> runOnSendingThread(Consumer<org.apache.kafka.clients.producer.Producer<K,V>> action)

Description copied from interface: KafkaProducer

Runs an action on the sending thread.

The action is a consumer receiving the Producer. The produced Uni emits null when the action completes. If the action throws an exception, the produced Uni emits the exception as failure.

Specified by:

runOnSendingThread in interface KafkaProducer<K,V>

Parameters:

action - the action, must not be null

Returns:

the Uni emitting null or the failure when the action completes.

send

public io.smallrye.mutiny.Uni<org.apache.kafka.clients.producer.RecordMetadata> send(org.apache.kafka.clients.producer.ProducerRecord<K,V> record)

Description copied from interface: KafkaProducer

Send a record to a topic. The returned Uni completes with RecordMetadata when the send has been acknowledged, or with an exception in case of an error.

Specified by:

send in interface KafkaProducer<K,V>

flush

public io.smallrye.mutiny.Uni<Void> flush()

Description copied from interface: KafkaProducer

Sends all buffered records immediately. The returned Uni completes when all requests belonging to the buffered records complete. In other words, when the returned Uni completes, all previous KafkaProducer.send(ProducerRecord) operations are known to be complete as well. No guarantee is made about the completion of records sent after flush was called.

Specified by:

flush in interface KafkaProducer<K,V>

partitionsFor

public io.smallrye.mutiny.Uni<List<org.apache.kafka.common.PartitionInfo>> partitionsFor(String topic)

Description copied from interface: KafkaProducer

Returns a list of partition metadata for given topic.

Specified by:

partitionsFor in interface KafkaProducer<K,V>

get

public String get(String attribute)

unwrap

public org.apache.kafka.clients.producer.Producer<K,V> unwrap()

Specified by:

unwrap in interface KafkaProducer<K,V>

Returns:

the underlying producer. Be aware that to use it you needs to be on the sending thread.

configuration

public Map<String,?> configuration()

close

public void close()