MessagePublisherSink

A MessagePublisherSink (an AckedSink) publishes each input Message, and either acks or fails the upstream element, depending on ConfirmResponse.

Using a RabbitSource with a MessagePublisherSink is a great way to get persistent, recoverable streams.

Note - MessagePublisherSink uses ActorPublisher and due to AkkaStream limitations, it DOES NOT abide your configured supervisor strategy.

Message.ConfirmResponse handling

After the sink publishes the Message, it listens for the Message.ConfirmResponse, and handles it accordingly:

On Message.Ack, ack the upstream element.
On Message.Nack, fail the upstream element with MessageNacked. Does not throw a stream exception. Processing continues.
On Message.Fail, fail the upstream element with publisher exception. Does not throw a stream exception. Processing continues.

Future[Unit] materialized type:

This sinks materialized type is Future[Unit]. The following applies:

It yields any upstream failure as soon as it reaches the sink (potentially before messages are confirmed).
After the stream completes, and all Message.ConfirmResponse's have have been processed, the Future[Unit] is completed.

Linear Supertypes

AnyRef, Any

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
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final def ==(arg0: Any): Boolean

Definition Classes
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def apply(rabbitControl: ActorRef, timeoutAfter: FiniteDuration = 30 seconds, qos: Int = 8): AckedSink[Message, Future[Unit]]

rabbitControl
An actor
timeoutAfter
The duration for which we'll wait for a message to be acked; note, timeouts and non-acknowledged messages will cause the upstream elements to fail. The sink will not throw an exception.
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
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final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
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final def notifyAll(): Unit

Definition Classes
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final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
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def toString(): String

Definition Classes
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final def wait(): Unit

Definition Classes
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Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
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Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package stream

object MessagePublisherSink

Message.ConfirmResponse handling

Future[Unit] materialized type:

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def apply(rabbitControl: ActorRef, timeoutAfter: FiniteDuration = 30 seconds, qos: Int = 8): AckedSink[Message, Future[Unit]]

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from AnyRef

Inherited from Any

Ungrouped