Packages

trait ServiceLocator extends AnyRef

Locates services.

The service locator is responsible for two things, one is locating services according to the passed in name and service call information, the other is to implement circuit breaking functionality when #doWithService is invoked.

The reason circuit breaking is a service locator concern is that generally, the service locator will want to be aware of when a circuit breaker is open, and respond accordingly. For example, it may decide to pull that node from its routing pool, or it may decide to notify some up stream service registry that that node is no longer responding.

Source
ServiceLocator.scala
Linear Supertypes
AnyRef, Any
Known Subclasses
AkkaDiscoveryServiceLocator, NoServiceLocator, CircuitBreakingServiceLocator, ConfigurationServiceLocator, RoundRobinServiceLocator, StaticServiceLocator
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Inherited
  1. ServiceLocator
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Abstract Value Members

  1. abstract def doWithService[T](name: String, serviceCall: Call[_, _])(block: (URI) ⇒ Future[T])(implicit ec: ExecutionContext): Future[Option[T]]

    Do the given action with the given service.

    Do the given action with the given service.

    This should be used in preference to #locate when possible as it will allow the service locator to add in things like circuit breakers.

    It is required that the service locator will, based on the service call circuit breaker configuration, wrap the invocation of the passed in block with a circuit breaker.

    name

    The name of the service.

    serviceCall

    The service call descriptor that this lookup is for.

    block

    A block of code that takes the URI for the service, and returns a future of some work done on the service. This will only be executed if the service was found.

    returns

    The result of the executed block, if the service was found.

  2. abstract def locate(name: String, serviceCall: Call[_, _]): Future[Option[URI]]

    Locate a service's URI for the given name.

    Locate a service's URI for the given name.

    name

    The name of the service.

    serviceCall

    The service call descriptor that this lookup is for.

    returns

    The URI for that service, if it exists.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from ServiceLocator to any2stringadd[ServiceLocator] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (ServiceLocator, B)
    Implicit
    This member is added by an implicit conversion from ServiceLocator to ArrowAssoc[ServiceLocator] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  8. def ensuring(cond: (ServiceLocator) ⇒ Boolean, msg: ⇒ Any): ServiceLocator
    Implicit
    This member is added by an implicit conversion from ServiceLocator to Ensuring[ServiceLocator] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (ServiceLocator) ⇒ Boolean): ServiceLocator
    Implicit
    This member is added by an implicit conversion from ServiceLocator to Ensuring[ServiceLocator] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: ⇒ Any): ServiceLocator
    Implicit
    This member is added by an implicit conversion from ServiceLocator to Ensuring[ServiceLocator] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): ServiceLocator
    Implicit
    This member is added by an implicit conversion from ServiceLocator to Ensuring[ServiceLocator] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  15. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from ServiceLocator to StringFormat[ServiceLocator] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. def locate(name: String): Future[Option[URI]]

    Locate a service's URI for the given name.

    Locate a service's URI for the given name.

    name

    The name of the service.

    returns

    The URI for that service, if it exists.

  20. def locateAll(name: String, serviceCall: Call[_, _]): Future[List[URI]]

    Locate the service's URIs for the given name.

    Locate the service's URIs for the given name.

    name

    The name of the service.

    serviceCall

    The service call descriptor that this lookup is for.

    returns

    One or more URIs for that service, otherwise an empty List (Nil) if none is found.

    Since

    1.4

  21. def locateAll(name: String): Future[List[URI]]

    Locate the service's URIs for the given name.

    Locate the service's URIs for the given name.

    name

    The name of the service.

    returns

    One or more URIs for that service, otherwise an empty List (Nil) if none is found.

    Since

    1.4

  22. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  23. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  25. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  26. def toString(): String
    Definition Classes
    AnyRef → Any
  27. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  28. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  30. def →[B](y: B): (ServiceLocator, B)
    Implicit
    This member is added by an implicit conversion from ServiceLocator to ArrowAssoc[ServiceLocator] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from ServiceLocator to any2stringadd[ServiceLocator]

Inherited by implicit conversion StringFormat from ServiceLocator to StringFormat[ServiceLocator]

Inherited by implicit conversion Ensuring from ServiceLocator to Ensuring[ServiceLocator]

Inherited by implicit conversion ArrowAssoc from ServiceLocator to ArrowAssoc[ServiceLocator]

Ungrouped