Package io.vertx.reactivex.kafka.client.producer

Class KafkaProducer<K,V>

java.lang.Object

io.vertx.reactivex.kafka.client.producer.KafkaProducer<K,V>

All Implemented Interfaces:

StreamBase, WriteStream<KafkaProducerRecord<K,V>>

public class KafkaProducer<K,V>
extends Object
implements WriteStream<KafkaProducerRecord<K,V>>

Vert.x Kafka producer.

The WriteStream.write(T, io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) provides global control over writing a record.

NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.

Field Summary

Fields

Modifier and Type	Field	Description
static TypeArg<KafkaProducer>	__TYPE_ARG
TypeArg<K>	__typeArg_0
TypeArg<V>	__typeArg_1

Constructor Summary

Constructors

Constructor	Description
KafkaProducer(KafkaProducer delegate)
KafkaProducer(Object delegate, TypeArg<K> typeArg_0, TypeArg<V> typeArg_1)

Method Summary

Modifier and Type	Method	Description
KafkaProducer<K,V>	abortTransaction()	Aborts the ongoing transaction.
KafkaProducer<K,V>	abortTransaction(Handler<AsyncResult<Void>> handler)	Aborts the ongoing transaction.
KafkaProducer<K,V>	beginTransaction()	Starts a new kafka transaction.
KafkaProducer<K,V>	beginTransaction(Handler<AsyncResult<Void>> handler)	Starts a new kafka transaction.
void	close()	Close the producer
void	close(long timeout)	Close the producer
void	close(long timeout, Handler<AsyncResult<Void>> completionHandler)	Close the producer
void	close(Handler<AsyncResult<Void>> completionHandler)	Close the producer
KafkaProducer<K,V>	commitTransaction()	Commits the ongoing transaction.
KafkaProducer<K,V>	commitTransaction(Handler<AsyncResult<Void>> handler)	Commits the ongoing transaction.
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>	createShared(Vertx vertx, String name, KafkaClientOptions options)	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, KafkaClientOptions options, 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)	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
KafkaProducer<K,V>	drainHandler(Handler<Void> handler)	Set a drain handler on the stream.
void	end()	Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes
void	end(Handler<AsyncResult<Void>> handler)	Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes
void	end(KafkaProducerRecord<K,V> data)	Same as but with an handler called when the operation completes
void	end(KafkaProducerRecord<K,V> data, Handler<AsyncResult<Void>> handler)	Same as but with an handler called when the operation completes
boolean	equals(Object o)
KafkaProducer<K,V>	exceptionHandler(Handler<Throwable> handler)	Set an exception handler on the write stream.
KafkaProducer<K,V>	flush()	Invoking this method makes all buffered records immediately available to write
KafkaProducer<K,V>	flush(Handler<AsyncResult<Void>> completionHandler)	Invoking this method makes all buffered records immediately available to write
KafkaProducer	getDelegate()
int	hashCode()
KafkaProducer<K,V>	initTransactions()	Initializes the underlying kafka transactional producer.
KafkaProducer<K,V>	initTransactions(Handler<AsyncResult<Void>> handler)	Initializes the underlying kafka transactional producer.
static <K,V> KafkaProducer<K,V>	newInstance(KafkaProducer arg)
static <K,V> KafkaProducer<K,V>	newInstance(KafkaProducer arg, TypeArg<K> __typeArg_K, TypeArg<V> __typeArg_V)
KafkaProducer<K,V>	partitionsFor(String topic)	Get the partition metadata for the give topic.
KafkaProducer<K,V>	partitionsFor(String topic, Handler<AsyncResult<List<PartitionInfo>>> handler)	Get the partition metadata for the give topic.
io.reactivex.Completable	rxAbortTransaction()	Aborts the ongoing transaction.
io.reactivex.Completable	rxBeginTransaction()	Starts a new kafka transaction.
io.reactivex.Completable	rxClose()	Close the producer
io.reactivex.Completable	rxClose(long timeout)	Close the producer
io.reactivex.Completable	rxCommitTransaction()	Commits the ongoing transaction.
io.reactivex.Completable	rxEnd()	Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes
io.reactivex.Completable	rxEnd(KafkaProducerRecord<K,V> data)	Same as but with an handler called when the operation completes
io.reactivex.Completable	rxFlush()	Invoking this method makes all buffered records immediately available to write
io.reactivex.Completable	rxInitTransactions()	Initializes the underlying kafka transactional producer.
io.reactivex.Single<List<PartitionInfo>>	rxPartitionsFor(String topic)	Get the partition metadata for the give topic.
io.reactivex.Single<RecordMetadata>	rxSend(KafkaProducerRecord<K,V> record)	Asynchronously write a record to a topic
io.reactivex.Completable	rxWrite(KafkaProducerRecord<K,V> data)	Same as but with an handler called when the operation completes
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.
WriteStreamObserver<KafkaProducerRecord<K,V>>	toObserver()
String	toString()
WriteStreamSubscriber<KafkaProducerRecord<K,V>>	toSubscriber()
void	write(KafkaProducerRecord<K,V> data)	Same as but with an handler called when the operation completes
void	write(KafkaProducerRecord<K,V> data, Handler<AsyncResult<Void>> handler)	Same as 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 setWriteQueueMaxSize(int)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

__TYPE_ARG

public static final TypeArg<KafkaProducer> __TYPE_ARG

__typeArg_0

public final TypeArg<K> __typeArg_0

__typeArg_1

public final TypeArg<V> __typeArg_1

Constructor Detail

KafkaProducer

public KafkaProducer(KafkaProducer delegate)

KafkaProducer

public KafkaProducer(Object delegate,
                     TypeArg<K> typeArg_0,
                     TypeArg<V> typeArg_1)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getDelegate

public KafkaProducer getDelegate()

Specified by:

getDelegate in interface StreamBase

Specified by:

getDelegate in interface WriteStream<K>

toObserver

public WriteStreamObserver<KafkaProducerRecord<K,V>> toObserver()

toSubscriber

public WriteStreamSubscriber<KafkaProducerRecord<K,V>> toSubscriber()

write

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

Same as but with an handler called when the operation completes

Specified by:

write in interface WriteStream<K>

Parameters:

data -

handler -

write

public void write(KafkaProducerRecord<K,V> data)

Same as but with an handler called when the operation completes

Specified by:

write in interface WriteStream<K>

Parameters:

data -

rxWrite

public io.reactivex.Completable rxWrite(KafkaProducerRecord<K,V> data)

Same as but with an handler called when the operation completes

Specified by:

rxWrite in interface WriteStream<K>

Parameters:

data -

Returns:

end

public void end(Handler<AsyncResult<Void>> handler)

Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes

Specified by:

end in interface WriteStream<K>

Parameters:

handler -

end

public void end()

Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes

Specified by:

end in interface WriteStream<K>

rxEnd

public io.reactivex.Completable rxEnd()

Same as WriteStream.end(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) but with an handler called when the operation completes

Specified by:

rxEnd in interface WriteStream<K>

Returns:

end

public void end(KafkaProducerRecord<K,V> data,
                Handler<AsyncResult<Void>> handler)

Same as but with an handler called when the operation completes

Specified by:

end in interface WriteStream<K>

Parameters:

data -

handler -

end

public void end(KafkaProducerRecord<K,V> data)

Same as but with an handler called when the operation completes

Specified by:

end in interface WriteStream<K>

Parameters:

data -

rxEnd

public io.reactivex.Completable rxEnd(KafkaProducerRecord<K,V> data)

Same as but with an handler called when the operation completes

Specified by:

rxEnd in interface WriteStream<K>

Parameters:

data -

Returns:

writeQueueFull

public boolean writeQueueFull()

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

Specified by:

writeQueueFull in interface WriteStream<K>

Returns:

true if write queue is full

createShared

public 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

When close has been called for each shared producer the resources will be released. Calling end closes all shared producers.

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

public static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                                                String name,
                                                                KafkaClientOptions options)

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

When close has been called for each shared producer the resources will be released. Calling end closes all shared producers.

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

options - Kafka producer options

Returns:

an instance of the KafkaProducer

createShared

public 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

When close has been called for each shared producer the resources will be released. Calling end closes all shared producers.

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

public static <K,V> KafkaProducer<K,V> createShared(Vertx vertx,
                                                                String name,
                                                                KafkaClientOptions options,
                                                                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

When close has been called for each shared producer the resources will be released. Calling end closes all shared producers.

Parameters:

vertx - Vert.x instance to use

name - the producer name to identify it

options - Kafka producer options

keyType - class type for the key serialization

valueType - class type for the value serialization

Returns:

an instance of the KafkaProducer

create

public 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

public 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

initTransactions

public KafkaProducer<K,V> initTransactions(Handler<AsyncResult<Void>> handler)

Initializes the underlying kafka transactional producer. See initTransactions(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) ()}

Parameters:

handler - handler called on operation completed

Returns:

current KafkaWriteStream instance

initTransactions

public KafkaProducer<K,V> initTransactions()

Initializes the underlying kafka transactional producer. See initTransactions(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) ()}

Returns:

current KafkaWriteStream instance

rxInitTransactions

public io.reactivex.Completable rxInitTransactions()

Initializes the underlying kafka transactional producer. See initTransactions(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>) ()}

Returns:

current KafkaWriteStream instance

beginTransaction

public KafkaProducer<K,V> beginTransaction(Handler<AsyncResult<Void>> handler)

Starts a new kafka transaction. See beginTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Parameters:

handler - handler called on operation completed

Returns:

current KafkaWriteStream instance

beginTransaction

public KafkaProducer<K,V> beginTransaction()

Starts a new kafka transaction. See beginTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Returns:

current KafkaWriteStream instance

rxBeginTransaction

public io.reactivex.Completable rxBeginTransaction()

Starts a new kafka transaction. See beginTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Returns:

current KafkaWriteStream instance

commitTransaction

public KafkaProducer<K,V> commitTransaction(Handler<AsyncResult<Void>> handler)

Commits the ongoing transaction. See commitTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Parameters:

handler - handler called on operation completed

Returns:

current KafkaWriteStream instance

commitTransaction

public KafkaProducer<K,V> commitTransaction()

Commits the ongoing transaction. See commitTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Returns:

current KafkaWriteStream instance

rxCommitTransaction

public io.reactivex.Completable rxCommitTransaction()

Commits the ongoing transaction. See commitTransaction(io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>)

Returns:

current KafkaWriteStream instance

abortTransaction

public KafkaProducer<K,V> abortTransaction(Handler<AsyncResult<Void>> handler)

Aborts the ongoing transaction. See KafkaProducer

Parameters:

handler - handler called on operation completed

Returns:

current KafkaWriteStream instance

abortTransaction

public KafkaProducer<K,V> abortTransaction()

Aborts the ongoing transaction. See KafkaProducer

Returns:

current KafkaWriteStream instance

rxAbortTransaction

public io.reactivex.Completable rxAbortTransaction()

Aborts the ongoing transaction. See KafkaProducer

Returns:

current KafkaWriteStream instance

exceptionHandler

public 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<K>

Parameters:

handler - the exception handler

Returns:

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

setWriteQueueMaxSize

public 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 Pipe to provide flow control.

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

Specified by:

setWriteQueueMaxSize in interface WriteStream<K>

Parameters:

i - the max size of the write stream

Returns:

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

drainHandler

public 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 Pipe 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<K>

Parameters:

handler - the handler

Returns:

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

send

public 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

send

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

Asynchronously write a record to a topic

Parameters:

record - record to write

Returns:

current KafkaWriteStream instance

rxSend

public io.reactivex.Single<RecordMetadata> rxSend(KafkaProducerRecord<K,V> record)

Asynchronously write a record to a topic

Parameters:

record - record to write

Returns:

current KafkaWriteStream instance

partitionsFor

public 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

partitionsFor

public KafkaProducer<K,V> partitionsFor(String topic)

Get the partition metadata for the give topic.

Parameters:

topic - topic partition for which getting partitions info

Returns:

current KafkaProducer instance

rxPartitionsFor

public io.reactivex.Single<List<PartitionInfo>> rxPartitionsFor(String topic)

Get the partition metadata for the give topic.

Parameters:

topic - topic partition for which getting partitions info

Returns:

current KafkaProducer instance

flush

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

Invoking this method makes all buffered records immediately available to write

Parameters:

completionHandler - handler called on operation completed

Returns:

current KafkaProducer instance

flush

public KafkaProducer<K,V> flush()

Invoking this method makes all buffered records immediately available to write

Returns:

current KafkaProducer instance

rxFlush

public io.reactivex.Completable rxFlush()

Invoking this method makes all buffered records immediately available to write

Returns:

current KafkaProducer instance

close

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

Close the producer

Parameters:

completionHandler - handler called on operation completed

close

public void close()

Close the producer

rxClose

public io.reactivex.Completable rxClose()

Close the producer

Returns:

close

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

Close the producer

Parameters:

timeout - timeout to wait for closing

completionHandler - handler called on operation completed

close

public void close(long timeout)

Close the producer

Parameters:

timeout - timeout to wait for closing

rxClose

public io.reactivex.Completable rxClose(long timeout)

Close the producer

Parameters:

timeout - timeout to wait for closing

Returns:

newInstance

public static <K,V> KafkaProducer<K,V> newInstance(KafkaProducer arg)

newInstance

public static <K,V> KafkaProducer<K,V> newInstance(KafkaProducer arg,
                                                               TypeArg<K> __typeArg_K,
                                                               TypeArg<V> __typeArg_V)