io.vertx.kafka.client.producer

Interface KafkaProducer<K,V>

All Superinterfaces:

StreamBase, WriteStream<KafkaProducerRecord<K,V>>

public interface KafkaProducer<K,V>
extends WriteStream<KafkaProducerRecord<K,V>>

Vert.x Kafka producer.

The WriteStream.write(Object) provides global control over writing a record.

Method Summary

Modifier and Type	Method and Description
KafkaWriteStream<K,V>	asStream()
void	close() Close the producer
void	close(Handler<AsyncResult<Void>> completionHandler) Close the producer
void	close(long timeout, Handler<AsyncResult<Void>> completionHandler) Close the producer
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Map<String,String> config) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Map<String,String> config, Class<K> keyType, Class<V> valueType) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Map<String,String> config, org.apache.kafka.common.serialization.Serializer<K> keySerializer, org.apache.kafka.common.serialization.Serializer<V> valueSerializer) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, org.apache.kafka.clients.producer.Producer<K,V> producer) Create a new KafkaProducer instance from a native Producer.
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Properties config) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Properties config, Class<K> keyType, Class<V> valueType) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	create(Vertx vertx, Properties config, org.apache.kafka.common.serialization.Serializer<K> keySerializer, org.apache.kafka.common.serialization.Serializer<V> valueSerializer) Create a new KafkaProducer instance
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Map<String,String> config) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Map<String,String> config, Class<K> keyType, Class<V> valueType) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Map<String,String> config, org.apache.kafka.common.serialization.Serializer<K> keySerializer, org.apache.kafka.common.serialization.Serializer<V> valueSerializer) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Properties config) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Properties config, Class<K> keyType, Class<V> valueType) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
static <K,V> KafkaProducer<K,V>	createShared(Vertx vertx, String name, Properties config, org.apache.kafka.common.serialization.Serializer<K> keySerializer, org.apache.kafka.common.serialization.Serializer<V> valueSerializer) Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name
KafkaProducer<K,V>	drainHandler(Handler<Void> handler) Set a drain handler on the stream.
KafkaProducer<K,V>	exceptionHandler(Handler<Throwable> handler) Set an exception handler on the write stream.
KafkaProducer<K,V>	flush(Handler<Void> completionHandler) Invoking this method makes all buffered records immediately available to write
KafkaProducer<K,V>	partitionsFor(String topic, Handler<AsyncResult<List<PartitionInfo>>> handler) Get the partition metadata for the give topic.
KafkaProducer<K,V>	send(KafkaProducerRecord<K,V> record) Asynchronously write a record to a topic
KafkaProducer<K,V>	send(KafkaProducerRecord<K,V> record, Handler<AsyncResult<RecordMetadata>> handler) Asynchronously write a record to a topic
KafkaProducer<K,V>	setWriteQueueMaxSize(int i) Set the maximum size of the write queue to maxSize.
org.apache.kafka.clients.producer.Producer<K,V>	unwrap()
KafkaProducer<K,V>	write(KafkaProducerRecord<K,V> kafkaProducerRecord) Write some data to the stream.
KafkaProducer<K,V>	write(KafkaProducerRecord<K,V> data, Handler<AsyncResult<Void>> handler) Same as #write(T) but with an handler called when the operation completes
boolean	writeQueueFull() This will return true if there are more bytes in the write queue than the value set using WriteStream.setWriteQueueMaxSize(int)

Methods inherited from interface io.vertx.core.streams.WriteStream

end, end, end, end

Method Detail

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Properties config)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

Returns:

an instance of the KafkaProducer

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Map<String,String> config)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

Returns:

an instance of the KafkaProducer

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Map<String,String> config,
                                             org.apache.kafka.common.serialization.Serializer<K> keySerializer,
                                             org.apache.kafka.common.serialization.Serializer<V> valueSerializer)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

keySerializer - key serializer

valueSerializer - value serializer

Returns:

an instance of the KafkaProducer

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Map<String,String> config,
                                             Class<K> keyType,
                                             Class<V> valueType)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

keyType - class type for the key serialization

valueType - class type for the value serialization

Returns:

an instance of the KafkaProducer

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Properties config,
                                             org.apache.kafka.common.serialization.Serializer<K> keySerializer,
                                             org.apache.kafka.common.serialization.Serializer<V> valueSerializer)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

keySerializer - key serializer

valueSerializer - value serializer

Returns:

an instance of the KafkaProducer

createShared

static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                             String name,
                                             Properties config,
                                             Class<K> keyType,
                                             Class<V> valueType)

Get or create a KafkaProducer instance which shares its stream with any other KafkaProducer created with the same name

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

config - Kafka producer configuration

keyType - class type for the key serialization

valueType - class type for the value serialization

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       org.apache.kafka.clients.producer.Producer<K,V> producer)

Create a new KafkaProducer instance from a native Producer.

Parameters:

vertx - Vert.x instance to use

producer - the Kafka producer to wrap

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Map<String,String> config)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Map<String,String> config,
                                       org.apache.kafka.common.serialization.Serializer<K> keySerializer,
                                       org.apache.kafka.common.serialization.Serializer<V> valueSerializer)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

keySerializer - key serializer

valueSerializer - value serializer

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Map<String,String> config,
                                       Class<K> keyType,
                                       Class<V> valueType)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

keyType - class type for the key serialization

valueType - class type for the value serialization

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Properties config)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Properties config,
                                       org.apache.kafka.common.serialization.Serializer<K> keySerializer,
                                       org.apache.kafka.common.serialization.Serializer<V> valueSerializer)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

keySerializer - key serializer

valueSerializer - value serializer

Returns:

an instance of the KafkaProducer

create

static <K,V> KafkaProducer<K,V> create(Vertx vertx,
                                       Properties config,
                                       Class<K> keyType,
                                       Class<V> valueType)

Create a new KafkaProducer instance

Parameters:

vertx - Vert.x instance to use

config - Kafka producer configuration

keyType - class type for the key serialization

valueType - class type for the value serialization

Returns:

an instance of the KafkaProducer

exceptionHandler

KafkaProducer<K,V> exceptionHandler(Handler<Throwable> handler)

Description copied from interface: WriteStream

Set an exception handler on the write stream.

Specified by:

exceptionHandler in interface StreamBase

Specified by:

exceptionHandler in interface WriteStream<KafkaProducerRecord<K,V>>

Parameters:

handler - the exception handler

Returns:

a reference to this, so the API can be used fluently

write

KafkaProducer<K,V> write(KafkaProducerRecord<K,V> kafkaProducerRecord)

Description copied from interface: WriteStream

Write some data to the stream. The data is put on an internal write queue, and the write actually happens asynchronously. To avoid running out of memory by putting too much on the write queue, check the WriteStream.writeQueueFull() method before writing. This is done automatically if using a Pump.

Specified by:

write in interface WriteStream<KafkaProducerRecord<K,V>>

Parameters:

kafkaProducerRecord - the data to write

Returns:

a reference to this, so the API can be used fluently

setWriteQueueMaxSize

KafkaProducer<K,V> setWriteQueueMaxSize(int i)

Description copied from interface: WriteStream

Set the maximum size of the write queue to maxSize. You will still be able to write to the stream even if there is more than maxSize items in the write queue. This is used as an indicator by classes such as Pump to provide flow control.

The value is defined by the implementation of the stream, e.g in bytes for a NetSocket, the number of Message for a MessageProducer, etc...

Specified by:

setWriteQueueMaxSize in interface WriteStream<KafkaProducerRecord<K,V>>

Parameters:

i - the max size of the write stream

Returns:

a reference to this, so the API can be used fluently

writeQueueFull

boolean writeQueueFull()

Description copied from interface: WriteStream

This will return true if there are more bytes in the write queue than the value set using WriteStream.setWriteQueueMaxSize(int)

Specified by:

writeQueueFull in interface WriteStream<KafkaProducerRecord<K,V>>

Returns:

true if write queue is full

drainHandler

KafkaProducer<K,V> drainHandler(Handler<Void> handler)

Description copied from interface: WriteStream

Set a drain handler on the stream. If the write queue is full, then the handler will be called when the write queue is ready to accept buffers again. See Pump for an example of this being used.

The stream implementation defines when the drain handler, for example it could be when the queue size has been reduced to maxSize / 2.

Specified by:

drainHandler in interface WriteStream<KafkaProducerRecord<K,V>>

Parameters:

handler - the handler

Returns:

a reference to this, so the API can be used fluently

write

KafkaProducer<K,V> write(KafkaProducerRecord<K,V> data,
                         Handler<AsyncResult<Void>> handler)

Description copied from interface: WriteStream

Same as #write(T) but with an handler called when the operation completes

Specified by:

write in interface WriteStream<KafkaProducerRecord<K,V>>

send

KafkaProducer<K,V> send(KafkaProducerRecord<K,V> record)

Asynchronously write a record to a topic

Parameters:

record - record to write

Returns:

current KafkaWriteStream instance

send

KafkaProducer<K,V> send(KafkaProducerRecord<K,V> record,
                        Handler<AsyncResult<RecordMetadata>> handler)

Asynchronously write a record to a topic

Parameters:

record - record to write

handler - handler called on operation completed

Returns:

current KafkaWriteStream instance

partitionsFor

KafkaProducer<K,V> partitionsFor(String topic,
                                 Handler<AsyncResult<List<PartitionInfo>>> handler)

Get the partition metadata for the give topic.

Parameters:

topic - topic partition for which getting partitions info

handler - handler called on operation completed

Returns:

current KafkaProducer instance

flush

KafkaProducer<K,V> flush(Handler<Void> completionHandler)

Invoking this method makes all buffered records immediately available to write

Parameters:

completionHandler - handler called on operation completed

Returns:

current KafkaProducer instance

close

void close()

Close the producer

close

void close(Handler<AsyncResult<Void>> completionHandler)

Close the producer

Parameters:

completionHandler - handler called on operation completed

close

void close(long timeout,
           Handler<AsyncResult<Void>> completionHandler)

Close the producer

Parameters:

timeout - timeout to wait for closing

completionHandler - handler called on operation completed

asStream

KafkaWriteStream<K,V> asStream()

Returns:

underlying KafkaWriteStream instance

unwrap

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

Returns:

the underlying producer