c

com.digitalasset.canton.topology.client

BaseDomainTopologyClient

abstract class BaseDomainTopologyClient extends DomainTopologyClientWithInit with TopologyAwaiter with TimeAwaiter

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Inherited
  1. BaseDomainTopologyClient
  2. TimeAwaiter
  3. TopologyAwaiter
  4. FlagCloseable
  5. DomainTopologyClientWithInit
  6. NamedLogging
  7. TopologyTransactionProcessingSubscriber
  8. DomainTopologyClient
  9. AutoCloseable
  10. TopologyClientApi
  11. AnyRef
  12. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new BaseDomainTopologyClient()

Abstract Value Members

  1. abstract def await(condition: (TopologySnapshot) => Future[Boolean], timeout: Duration)(implicit traceContext: TraceContext): FutureUnlessShutdown[Boolean]

    Wait for a condition to become true according to the current snapshot approximation

    Wait for a condition to become true according to the current snapshot approximation

    returns

    true if the condition became true, false if it timed out

    Definition Classes
    DomainTopologyClient
  2. abstract def clock: Clock
    Attributes
    protected
    Definition Classes
    TopologyAwaiter
  3. abstract def currentSnapshotApproximation(implicit traceContext: TraceContext): TopologySnapshotLoader

    Overloaded recent snapshot returning derived type

    Overloaded recent snapshot returning derived type

    Definition Classes
    DomainTopologyClientWithInitTopologyClientApi
  4. abstract def domainId: DomainId

    The domain this client applies to

    The domain this client applies to

    Definition Classes
    TopologyClientApi
  5. implicit abstract def executionContext: ExecutionContext
  6. abstract def loggerFactory: NamedLoggerFactory
    Attributes
    protected
    Definition Classes
    NamedLogging
  7. abstract def timeouts: ProcessingTimeout
    Attributes
    protected
    Definition Classes
    FlagCloseable
  8. abstract def trySnapshot(timestamp: CantonTimestamp)(implicit traceContext: TraceContext): TopologySnapshotLoader

    Returns the topology information at a certain point in time

    Returns the topology information at a certain point in time

    Fails with an exception if the state is not yet known.

    Definition Classes
    DomainTopologyClientWithInitTopologyClientApi

Concrete 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 approximateTimestamp: CantonTimestamp

    returns the current approximate timestamp

    returns the current approximate timestamp

    whenever we get an update, we do set the approximate timestamp first to the sequencer time and schedule an update on the clock to advance the approximate time to the effective time after the time difference elapsed.

    Definition Classes
    BaseDomainTopologyClientTopologyClientApi
  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def awaitKnownTimestamp(timestamp: CantonTimestamp): Option[Future[Unit]]
    Attributes
    protected
    Definition Classes
    TimeAwaiter
  7. def awaitKnownTimestampUS(timestamp: CantonTimestamp): Option[FutureUnlessShutdown[Unit]]
    Attributes
    protected
    Definition Classes
    TimeAwaiter
  8. def awaitSnapshot(timestamp: CantonTimestamp)(implicit traceContext: TraceContext): Future[TopologySnapshot]

    Waits until a snapshot is available

    Waits until a snapshot is available

    Definition Classes
    DomainTopologyClientWithInitTopologyClientApi
  9. def awaitSnapshotUS(timestamp: CantonTimestamp)(implicit traceContext: TraceContext): FutureUnlessShutdown[TopologySnapshot]

    Shutdown safe version of await snapshot

    Shutdown safe version of await snapshot

    Definition Classes
    DomainTopologyClientWithInitTopologyClientApi
  10. def awaitTimestamp(timestamp: CantonTimestamp, waitForEffectiveTime: Boolean)(implicit traceContext: TraceContext): Option[Future[Unit]]

    Returns an optional future which will complete when the timestamp has been observed

    Returns an optional future which will complete when the timestamp has been observed

    If the timestamp is already observed, we return None.

    Note that this function allows to wait for effective time (true) and sequenced time (false). If we wait for effective time, we wait until the topology snapshot for that given point in time is known. As we future date topology transactions (to avoid bottlenecks), this might be before we actually observed a sequencing timestamp.

    Definition Classes
    BaseDomainTopologyClientTopologyClientApi
  11. def awaitTimestampUS(timestamp: CantonTimestamp, waitForEffectiveTime: Boolean)(implicit traceContext: TraceContext): Option[FutureUnlessShutdown[Unit]]
  12. def checkAwaitingConditions()(implicit traceContext: TraceContext): Unit
    Attributes
    protected
    Definition Classes
    TopologyAwaiter
  13. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  14. 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
    FlagCloseable → AutoCloseable
    Annotations
    @SuppressWarnings()
  15. def closingTimeout: FiniteDuration
    Attributes
    protected
    Definition Classes
    FlagCloseable
  16. def currentKnownTime: CantonTimestamp
    Attributes
    protected
    Definition Classes
    BaseDomainTopologyClientTimeAwaiter
  17. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  19. def expireTimeAwaiter(): Unit
    Attributes
    protected
    Definition Classes
    TimeAwaiter
  20. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  21. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. def headSnapshot(implicit traceContext: TraceContext): TopologySnapshot

    Possibly future dated head snapshot

    Possibly future dated head snapshot

    As we future date topology transactions, the head snapshot is our latest knowledge of the topology state, but as it can be still future dated, we need to be careful when actually using it: the state might not yet be active, as the topology transactions are future dated. Therefore, do not act towards the sequencer using this snapshot, but use the currentSnapshotApproximation instead.

    Definition Classes
    TopologyClientApi
  23. def internalPerformUnlessClosingF[A](f: => Future[A])(implicit ec: ExecutionContext, traceContext: TraceContext): UnlessShutdown[Future[A]]
    Attributes
    protected
    Definition Classes
    FlagCloseable
  24. def isClosing: Boolean

    Check whether we're closing.

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

    Definition Classes
    FlagCloseable
  25. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  26. 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
    FlagCloseable
  27. def logger: TracedLogger
    Attributes
    protected
    Definition Classes
    NamedLogging
  28. implicit def loggingContext(implicit traceContext: TraceContext): ErrorLoggingContext
    Attributes
    protected
    Definition Classes
    NamedLogging
  29. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  30. def noTracingLogger: Logger
    Attributes
    protected
    Definition Classes
    NamedLogging
  31. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  32. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  33. def notifyAwaitedFutures(upToInclusive: CantonTimestamp): Unit
    Attributes
    protected
    Definition Classes
    TimeAwaiter
  34. def numPendingChanges: Int

    current number of changes waiting to become effective

    current number of changes waiting to become effective

    Definition Classes
    BaseDomainTopologyClientDomainTopologyClientWithInit
  35. def observed(sequencedTimestamp: SequencedTime, effectiveTimestamp: EffectiveTime, sequencerCounter: SequencerCounter, transactions: Seq[SignedTopologyTransaction[TopologyChangeOp]])(implicit traceContext: TraceContext): FutureUnlessShutdown[Unit]
  36. def onClosed(): Unit
    Attributes
    protected
    Definition Classes
    BaseDomainTopologyClientTopologyAwaiterFlagCloseable
  37. def performUnlessClosing[A](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.

    f

    The task to perform

    returns

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

    Definition Classes
    FlagCloseable
  38. def performUnlessClosingEitherT[E, R](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.

    etf

    The task to perform

    Definition Classes
    FlagCloseable
  39. def performUnlessClosingEitherTF[E, R](onClosing: => E)(etf: => EitherT[Future, E, Future[R]])(implicit ec: ExecutionContext, traceContext: TraceContext): EitherT[Future, E, Future[R]]
    Definition Classes
    FlagCloseable
  40. def performUnlessClosingF[A](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.

    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
    FlagCloseable
  41. def runOnShutdown[T](task: RunOnShutdown)(implicit traceContext: TraceContext): Unit

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Register a task that will run onClose after all "performUnlessShutdown" tasks have finished

    Definition Classes
    FlagCloseable
  42. def runStateChanged(waitingState: Boolean = false): Unit
    Attributes
    protected
    Definition Classes
    FlagCloseable
    Annotations
    @VisibleForTesting()
  43. def sleepMillis: Long
    Attributes
    protected
    Definition Classes
    FlagCloseable
  44. def snapshot(timestamp: CantonTimestamp)(implicit traceContext: TraceContext): Future[TopologySnapshotLoader]

    Overloaded snapshot returning derived type

    Overloaded snapshot returning derived type

    Definition Classes
    DomainTopologyClientWithInitTopologyClientApi
  45. def snapshotAvailable(timestamp: CantonTimestamp): Boolean

    Returns whether a snapshot for the given timestamp is available.

    Returns whether a snapshot for the given timestamp is available.

    Definition Classes
    BaseDomainTopologyClientTopologyClientApi
  46. def subscribe(subscriber: Subscriber): Unit

    Subscribe to topology state change notifications

    Subscribe to topology state change notifications

    Definition Classes
    BaseDomainTopologyClientDomainTopologyClient
  47. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  48. def toString(): String
    Definition Classes
    AnyRef → Any
  49. def topologyKnownUntilTimestamp: CantonTimestamp

    The most recently observed effective timestamp

    The most recently observed effective timestamp

    The effective timestamp is sequencer_time + epsilon(sequencer_time), where epsilon is given by the topology change delay time, defined using the domain parameters.

    This is the highest timestamp for which we can serve snapshots

    Definition Classes
    BaseDomainTopologyClientTopologyClientApi
  50. def unsubscribe(subscriber: Subscriber): Unit

    Remove observer from topology information updates

    Remove observer from topology information updates

    Definition Classes
    BaseDomainTopologyClientDomainTopologyClient
  51. def updateHead(effectiveTimestamp: EffectiveTime, approximateTimestamp: ApproximateTime, potentialTopologyChange: Boolean)(implicit traceContext: TraceContext): Unit

    Move the most known timestamp ahead in future based of newly discovered information

    Move the most known timestamp ahead in future based of newly discovered information

    We don't know the most recent timestamp directly. However, we can guess it from two sources: What was the timestamp of the latest topology transaction added? And what was the last processing timestamp. We need to know both such that we can always deliver the latest valid set of topology information, and don't use old snapshots. Therefore, we expose the updateHead function on the public interface for initialisation purposes.

    effectiveTimestamp

    sequencer timestamp + epsilon(sequencer timestamp)

    approximateTimestamp

    our current best guess of what the "best" timestamp is to get a valid current topology snapshot

    potentialTopologyChange

    if true, the time advancement is related to a topology change that might have occurred or become effective

    Definition Classes
    BaseDomainTopologyClientDomainTopologyClientWithInitTopologyTransactionProcessingSubscriber
  52. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  53. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  54. 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

Inherited from TimeAwaiter

Inherited from TopologyAwaiter

Inherited from FlagCloseable

Inherited from NamedLogging

Inherited from DomainTopologyClient

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

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