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[ENT-1774] FlowAsyncOperation deduplication ID (#4068)

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This commit is contained in:
Thomas Schroeter
2018-10-19 11:40:59 +01:00
committed by GitHub
parent e99fa975f7
commit f685df46b5
10 changed files with 73 additions and 13 deletions
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12
core/src/main/kotlin/net/corda/core/internal/FlowAsyncOperation.kt
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@ -12,8 +12,14 @@ import net.corda.core.serialization.CordaSerializable
*/
@CordaSerializable
interface FlowAsyncOperation<R : Any> {
/** Performs the operation in a non-blocking fashion. */
fun execute(): CordaFuture<R>
/**
* Performs the operation in a non-blocking fashion.
* @param deduplicationId If the flow restarts from a checkpoint (due to node restart, or via a visit to the flow
* hospital following an error) the execute method might be called more than once by the Corda flow state machine.
* For each duplicate call, the deduplicationId is guaranteed to be the same allowing duplicate requests to be
* de-duplicated if necessary inside the execute method.
*/
fun execute(deduplicationId: String): CordaFuture<R>
}
// DOCEND FlowAsyncOperation
@ -24,4 +30,4 @@ fun <T, R : Any> FlowLogic<T>.executeAsync(operation: FlowAsyncOperation<R>, may
val request = FlowIORequest.ExecuteAsyncOperation(operation)
return stateMachine.suspend(request, maySkipCheckpoint)
}
// DOCEND executeAsync
// DOCEND executeAsync

4
core/src/main/kotlin/net/corda/core/internal/WaitForStateConsumption.kt
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@ -22,7 +22,7 @@ class WaitForStateConsumption(val stateRefs: Set<StateRef>, val services: Servic
val logger = contextLogger()
}
override fun execute(): CordaFuture<Unit> {
override fun execute(deduplicationId: String): CordaFuture<Unit> {
val futures = stateRefs.map { services.vaultService.whenConsumed(it).toCompletableFuture() }
val completedFutures = futures.filter { it.isDone }
@ -40,4 +40,4 @@ class WaitForStateConsumption(val stateRefs: Set<StateRef>, val services: Servic
return CompletableFuture.allOf(*futures.toTypedArray()).thenApply { Unit }.asCordaFuture()
}
}
}