c

blended.streams.jms

JmsConsumerStage

final class JmsConsumerStage extends GraphStage[SourceShape[FlowEnvelope]]

The JmsSource realizes an inbound Stream of FlowMessages consumed from a given JMS destination. The messages can be consumed using an arbitrary sink of FlowMessages. The sink must acknowledge or deny the message eventually. If the message is not acknowledged with a given time frame, the message will be denied and eventually redelivered.

A JMS session will only consume one message at a time, the next message will be consumed only after the previous message of that session has been denied or acknowledged. The messages that are waiting for acknowledgement are maintained within a map of (session-id / inflight messages).

Any exception while consuming a message within a session will cause that session to close, so that any inflight messages for that session will be redelivered. A new session will be created automatically for any sessions that have been closed with such an exception.

One of the use cases is a retry pattern. In that pattern the message must remain in the underlying destination for a minimum amount of time (i.e. 5 seconds). The message receive loop will check the JMSTimestamp against the System.currentTimeMillis to check whether a message can be passed downstream already.

Linear Supertypes
GraphStage[SourceShape[FlowEnvelope]], GraphStageWithMaterializedValue[SourceShape[FlowEnvelope], NotUsed], Graph[SourceShape[FlowEnvelope], NotUsed], AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. JmsConsumerStage
  2. GraphStage
  3. GraphStageWithMaterializedValue
  4. Graph
  5. AnyRef
  6. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new JmsConsumerStage(name: String, consumerSettings: JmsConsumerSettings, minMessageDelay: Option[FiniteDuration] = None)(implicit actorSystem: ActorSystem)

Type Members

  1. type Shape = SourceShape[FlowEnvelope]
    Definition Classes
    Graph

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def addAttributes(attr: Attributes): Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    Graph
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def async(dispatcher: String, inputBufferSize: Int): Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    Graph
  7. def async(dispatcher: String): Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    Graph
  8. def async: Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    Graph
  9. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  10. def createLogic(inheritedAttributes: Attributes): GraphStageLogic
    Definition Classes
    JmsConsumerStage → GraphStage
  11. final def createLogicAndMaterializedValue(inheritedAttributes: Attributes): (GraphStageLogic, NotUsed)
    Definition Classes
    GraphStage → GraphStageWithMaterializedValue
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. def initialAttributes: Attributes
    Attributes
    protected
    Definition Classes
    GraphStageWithMaterializedValue
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. def named(name: String): Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    Graph
  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. val shape: SourceShape[FlowEnvelope]
    Definition Classes
    JmsConsumerStage → Graph
  24. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  27. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  28. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  29. final def withAttributes(attr: Attributes): Graph[SourceShape[FlowEnvelope], NotUsed]
    Definition Classes
    GraphStageWithMaterializedValue → Graph

Inherited from GraphStage[SourceShape[FlowEnvelope]]

Inherited from GraphStageWithMaterializedValue[SourceShape[FlowEnvelope], NotUsed]

Inherited from Graph[SourceShape[FlowEnvelope], NotUsed]

Inherited from AnyRef

Inherited from Any

Ungrouped