public async Task WaitForExternalEvent_Should_Return_Successful_When_Task_Faster_Than_Timeout(int taskDelay, int timeoutDelay)
{
Sources source = Sources.Validator;
string externalEventReturn = "FakeEvent";
var fakeTimeout = TimeSpan.FromSeconds(timeoutDelay);
var ctx = CreateMockedOrquestratorContext(taskDelay, timeoutDelay, externalEventReturn);
string testEventNameReturn =
await DurableOrchestrationContextExtensions
.WaitForExternalEventWithTimeout <string>(ctx.Object, source, fakeTimeout);
Assert.Equal(externalEventReturn, testEventNameReturn);
}
public async Task <SagaState> OrchestrateAsync(TransactionItem input, IDurableOrchestrationContext context, ILogger log)
{
bool sagaSatePersisted = await SagaStatePersisters[nameof(SagaState.Pending)]();
if (!sagaSatePersisted)
{
return(SagaState.Fail);
}
ActivityResult <ProducerResult> validateTransferCommandResult = await CommandProducers[nameof(ValidateTransferCommand)]();
if (!validateTransferCommandResult.Valid)
{
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
string validatorEventName = await DurableOrchestrationContextExtensions
.WaitForExternalEventWithTimeout <string>(context, Sources.Validator, ValidatorTimeout);
if (validatorEventName != nameof(TransferValidatedEvent))
{
log.LogError(string.Format(ConstantStrings.DurableOrchestratorErrorMessage, validatorEventName, Sources.Validator, context.InstanceId));
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
ActivityResult <ProducerResult> transferCommandResult = await CommandProducers[nameof(TransferCommand)]();
if (!transferCommandResult.Valid)
{
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
string transferEventName = await DurableOrchestrationContextExtensions
.WaitForExternalEventWithTimeout <string>(context, Sources.Transfer, TransferTimeout);
if (transferEventName != nameof(TransferSucceededEvent))
{
log.LogError(string.Format(ConstantStrings.DurableOrchestratorErrorMessage, transferEventName, Sources.Transfer, context.InstanceId));
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
ActivityResult <ProducerResult> issueReceiptCommandResult = await CommandProducers[nameof(IssueReceiptCommand)]();
if (!issueReceiptCommandResult.Valid)
{
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
string receiptEventName = await DurableOrchestrationContextExtensions
.WaitForExternalEventWithTimeout <string>(context, Sources.Receipt, ReceiptTimeout);
if (receiptEventName != nameof(ReceiptIssuedEvent))
{
log.LogError(string.Format(ConstantStrings.DurableOrchestratorErrorMessage, receiptEventName, Sources.Receipt, context.InstanceId));
ActivityResult <ProducerResult> cancelTransferCommandResult = await CommandProducers[nameof(CancelTransferCommand)]();
if (!cancelTransferCommandResult.Valid)
{
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
string compensatedTransferEventName = await DurableOrchestrationContextExtensions
.WaitForExternalEventWithTimeout <string>(context, Sources.Transfer, TransferTimeout);
if (compensatedTransferEventName == nameof(TransferCanceledEvent))
{
await SagaStatePersisters[nameof(SagaState.Cancelled)]();
return(SagaState.Cancelled);
}
await SagaStatePersisters[nameof(SagaState.Fail)]();
return(SagaState.Fail);
}
await SagaStatePersisters[nameof(SagaState.Success)]();
log.LogInformation($@"Saga '{context.InstanceId}' finished successfully.");
return(SagaState.Success);
}
