Packages

class PingService extends AdminWorkflowService with FlagCloseable with HasCloseContext with NamedLogging

Implements the core of the ledger ping service for a participant. The service measures the time needed for a nanobot on the responder to act on a contract created by the initiator.

The main functionality: 1. once instantiated, it automatically starts a Scala Nanobot that responds to pings for this participant 2. it provides a ping method that sends a ping to the given (target) party

Parameters:

Annotations
@SuppressWarnings()
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Inherited
  1. PingService
  2. NamedLogging
  3. HasCloseContext
  4. PromiseUnlessShutdownFactory
  5. FlagCloseable
  6. PerformUnlessClosing
  7. OnShutdownRunner
  8. AdminWorkflowService
  9. AutoCloseable
  10. AnyRef
  11. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new PingService(connection: LedgerAcs, adminPartyId: PartyId, maxLevelSupported: Long, timeouts: ProcessingTimeout, pingDeduplicationTime: NonNegativeFiniteDuration, isActive: => Boolean, syncService: Option[CantonSyncService], futureSupervisor: FutureSupervisor, loggerFactory: NamedLoggerFactory, clock: Clock)(implicit ec: ExecutionContext, timeoutScheduler: ScheduledExecutorService)

    adminPartyId

    PartyId the party on whose behalf to send/respond to pings

    maxLevelSupported

    Long the maximum level we will participate in "Explode / Collapse" Pings

    loggerFactory

    NamedLogger logger

    clock

    Clock clock for regular garbage collection of duplicates and merges

Type Members

  1. case class VacuumCommand(id: String, action: String, command: Option[Command]) extends PrettyPrinting with Product with Serializable

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. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def cancelShutdownTask(token: Long): Unit

    Removes a shutdown task from the list using a token returned by runOnShutdown

    Removes a shutdown task from the list using a token returned by runOnShutdown

    Definition Classes
    OnShutdownRunner
  6. val clock: Clock
    Attributes
    protected
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
  8. final def close(): Unit

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Definition Classes
    FlagCloseableOnShutdownRunner → AutoCloseable
  9. implicit val closeContext: CloseContext
    Definition Classes
    HasCloseContext
  10. def closingTimeout: FiniteDuration
    Attributes
    protected
    Definition Classes
    FlagCloseablePerformUnlessClosing
  11. def containsShutdownTask(token: Long): Boolean
    Definition Classes
    OnShutdownRunner
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. implicit def errorLoggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @IntrinsicCandidate()
  17. def internalPerformUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
    Attributes
    protected
    Definition Classes
    PerformUnlessClosing
  18. def isClosing: Boolean

    Check whether we're closing.

    Check whether we're closing. Susceptible to race conditions; unless you're using this as a flag to the retry lib or you really know what you're doing, prefer performUnlessClosing and friends.

    Definition Classes
    OnShutdownRunner
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. def keepTrackOfOpenFutures: Boolean

    track running futures on shutdown

    track running futures on shutdown

    set to true to get detailed information about all futures that did not complete during shutdown. if set to false, we don't do anything.

    Attributes
    protected
    Definition Classes
    PerformUnlessClosing
  21. def logger: TracedLogger
    Attributes
    protected
    Definition Classes
    NamedLogging
  22. val loggerFactory: NamedLoggerFactory
    Attributes
    protected
    Definition Classes
    PingServiceNamedLogging
  23. def maxSleepMillis: Long

    How often to poll to check that all tasks have completed.

    How often to poll to check that all tasks have completed.

    Attributes
    protected
    Definition Classes
    PerformUnlessClosing
  24. def mkPromise[A](description: String, futureSupervisor: FutureSupervisor, logAfter: Duration = 10.seconds, logLevel: Level = Level.DEBUG)(implicit elc: ErrorLoggingContext, ec: ExecutionContext): PromiseUnlessShutdown[A]

    Use this method to create a PromiseUnlessShutdown that will automatically be cancelled when the close context is closed.

    Use this method to create a PromiseUnlessShutdown that will automatically be cancelled when the close context is closed. This allows proper clean up of stray promises when the node is transitioning to a passive state.

    Note: you should *not* invoke success on the returned promise but rather use trySuccess. The reason is that the call to success may fail in case of shutdown.

    Definition Classes
    PromiseUnlessShutdownFactory
  25. implicit def namedLoggingContext(implicit traceContext: TraceContext): NamedLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  26. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  27. def noTracingLogger: Logger
    Attributes
    protected
    Definition Classes
    NamedLogging
  28. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  29. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @IntrinsicCandidate()
  30. def onCloseFailure(e: Throwable): Unit
    Attributes
    protected
    Definition Classes
    PerformUnlessClosing
  31. def onClosed(): Unit
    Attributes
    protected
    Definition Classes
    PingServicePerformUnlessClosing
  32. final def onFirstClose(): Unit

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Blocks until all earlier tasks have completed and then prevents further tasks from being run.

    Definition Classes
    PerformUnlessClosingOnShutdownRunner
    Annotations
    @SuppressWarnings()
  33. def performUnlessClosing[A](name: String)(f: => A)(implicit traceContext: TraceContext): UnlessShutdown[A]

    Performs the task given by f unless a shutdown has been initiated.

    Performs the task given by f unless a shutdown has been initiated. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosingF and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    scala.None$ if a shutdown has been initiated. Otherwise the result of the task.

    Definition Classes
    PerformUnlessClosing
  34. def performUnlessClosingCheckedT[A, N, R](name: String, onClosing: => Checked[A, N, R])(etf: => CheckedT[Future, A, N, R])(implicit ec: ExecutionContext, traceContext: TraceContext): CheckedT[Future, A, N, R]
    Definition Classes
    PerformUnlessClosing
  35. def performUnlessClosingEitherT[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, R]

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead.

    Performs the EitherT[Future] given by etf unless a shutdown has been initiated, in which case the provided error is returned instead. Both etf and the error are lazy; etf is only evaluated if there is no shutdown, the error only if we're shutting down. The shutdown will only begin after etf completes, but other tasks may execute concurrently with etf, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingF). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of etf, because it will result in a deadlock.

    etf

    The task to perform

    Definition Classes
    PerformUnlessClosing
  36. def performUnlessClosingEitherTF[E, R](name: String, onClosing: => E)(etf: => EitherT[Future, E, Future[R]])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, Future[R]]
    Definition Classes
    PerformUnlessClosing
  37. def performUnlessClosingEitherU[E, R](name: String)(etf: => EitherT[Future, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
    Definition Classes
    PerformUnlessClosing
  38. def performUnlessClosingEitherUSF[E, R](name: String)(etf: => EitherT[FutureUnlessShutdown, E, R])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[FutureUnlessShutdown, E, R]
    Definition Classes
    PerformUnlessClosing
  39. def performUnlessClosingF[A](name: String)(f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]

    Performs the Future given by f unless a shutdown has been initiated.

    Performs the Future given by f unless a shutdown has been initiated. The future is lazy and not evaluated during shutdown. The shutdown will only begin after f completes, but other tasks may execute concurrently with f, if started using this function, or one of the other variants (performUnlessClosing and performUnlessClosingEitherT). The tasks are assumed to take less than closingTimeout to complete.

    DO NOT CALL this.close as part of f, because it will result in a deadlock.

    f

    The task to perform

    returns

    The future completes with com.digitalasset.canton.lifecycle.UnlessShutdown.AbortedDueToShutdown if a shutdown has been initiated. Otherwise the result of the task wrapped in com.digitalasset.canton.lifecycle.UnlessShutdown.Outcome.

    Definition Classes
    PerformUnlessClosing
  40. def performUnlessClosingUSF[A](name: String)(f: => FutureUnlessShutdown[A])(implicit ec: ExecutionContext, traceContext: TraceContext): FutureUnlessShutdown[A]
    Definition Classes
    PerformUnlessClosing
  41. def ping(targetParties: Set[String], validators: Set[String], timeoutMillis: Long, duplicateGracePeriod: Long = 1000, maxLevel: Long = 0, workflowId: Option[ledger.api.refinements.ApiTypes.WorkflowId] = None, id: String = UUID.randomUUID().toString)(implicit traceContext: TraceContext): Future[Result]

    Send a ping to the target party, return round-trip time or a timeout

    Send a ping to the target party, return round-trip time or a timeout

    targetParties

    String the parties to send ping to

    validators

    additional validators (signatories) of the contracts

    timeoutMillis

    Long how long to wait for pong (in milliseconds)

  42. def processCollapses(contracts: Seq[Contract], workflowId: ledger.api.refinements.ApiTypes.WorkflowId)(implicit traceContext: TraceContext): Unit
    Attributes
    protected
  43. def processExplodes(explodes: Seq[Contract], workflowId: ledger.api.refinements.ApiTypes.WorkflowId)(implicit traceContext: TraceContext): Unit
    Attributes
    protected
  44. def processMerges(contracts: Seq[Contract])(implicit traceContext: TraceContext): Unit
    Attributes
    protected
  45. def processProposals(proposals: Seq[Contract], workflowId: ledger.api.refinements.ApiTypes.WorkflowId)(implicit traceContext: TraceContext): Unit
    Attributes
    protected
  46. def processProposalsF(proposals: Seq[Contract], workflowId: ledger.api.refinements.ApiTypes.WorkflowId, unknownInformeesLogLevel: Level = Level.WARN)(implicit traceContext: TraceContext): Future[Unit]
    Attributes
    protected
  47. def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Long

    Same as runOnShutdown_ but returns a token that allows you to remove the task explicitly from being run using cancelShutdownTask

    Same as runOnShutdown_ but returns a token that allows you to remove the task explicitly from being run using cancelShutdownTask

    Definition Classes
    OnShutdownRunner
  48. def runOnShutdown_[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit

    Register a task to run when shutdown is initiated.

    Register a task to run when shutdown is initiated.

    You can use this for example to register tasks that cancel long-running computations, whose termination you can then wait for in "closeAsync".

    Definition Classes
    OnShutdownRunner
  49. def runStateChanged(waitingState: Boolean = false): Unit
    Attributes
    protected
    Definition Classes
    OnShutdownRunner
    Annotations
    @VisibleForTesting()
  50. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  51. val timeouts: ProcessingTimeout
    Attributes
    protected
    Definition Classes
    PingServiceFlagCloseable
  52. def toString(): String
    Definition Classes
    AnyRef → Any
  53. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  54. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  55. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated @Deprecated
    Deprecated

Inherited from NamedLogging

Inherited from HasCloseContext

Inherited from FlagCloseable

Inherited from PerformUnlessClosing

Inherited from OnShutdownRunner

Inherited from AdminWorkflowService

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

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