static ChannelOperationOutcomeInfoTest()
{
ConstructorArgumentValidationTestScenarios
.AddScenario(() =>
new ConstructorArgumentValidationTestScenario <ChannelOperationOutcomeInfo>
{
Name = "constructor should throw ArgumentOutOfRangeException when parameter 'outcome' is ChannelOperationOutcome.Unknown",
ConstructionFunc = () =>
{
var referenceObject = A.Dummy <ChannelOperationOutcomeInfo>();
var result = new ChannelOperationOutcomeInfo(
referenceObject.ChannelOperationTrackingCodeId,
referenceObject.EventType,
ChannelOperationOutcome.Unknown);
return(result);
},
ExpectedExceptionType = typeof(ArgumentOutOfRangeException),
ExpectedExceptionMessageContains = new[] { "Unknown", },
});
}
/// <inheritdoc />
public override async Task ExecuteAsync(
HandleRecordOp <ExecuteOpRequestedEvent <long, ProcessSendNotificationSagaOp> > operation)
{
new { operation }.AsArg().Must().NotBeNull();
// Pull some info out of the operation.
var executeOpRequestedEvent = operation.RecordToHandle.Payload;
var processSendNotificationSagaOp = executeOpRequestedEvent.Operation;
var inheritableTags = (operation.RecordToHandle.Metadata.Tags?.DeepClone() ?? new List <NamedValue <string> >()).ToList();
// Poll for failure event
var channels = processSendNotificationSagaOp.ChannelToOperationsMonitoringInfoMap.Keys;
var channelToOperationsOutcomeInfoMap = new Dictionary <IDeliveryChannel, IReadOnlyCollection <ChannelOperationOutcomeInfo> >();
foreach (var channel in channels)
{
new { this.channelToEventStreamMap }.AsOp().Must().ContainKey(channel, Invariant($"Looking for success/failure events on event stream for chanel {channel.GetType().ToStringReadable()} but there is no event stream associated with that channel."));
var eventStream = this.channelToEventStreamMap[channel];
var operationsMonitoringInfo = processSendNotificationSagaOp.ChannelToOperationsMonitoringInfoMap[channel];
var operationsOutcomeInfo = new List <ChannelOperationOutcomeInfo>();
channelToOperationsOutcomeInfoMap.Add(channel, operationsOutcomeInfo);
foreach (var operationMonitoringInfo in operationsMonitoringInfo)
{
ChannelOperationOutcomeInfo operationOutcomeInfo;
var failureEventMetadata = await eventStream.GetLatestRecordMetadataByIdAsync(
operationMonitoringInfo.ChannelOperationTrackingCodeId,
operationMonitoringInfo.FailedEventType,
recordNotFoundStrategy : RecordNotFoundStrategy.ReturnDefault);
if (failureEventMetadata != null)
{
// Merge-in the tags on the failure event.
AddMissingTags(inheritableTags, failureEventMetadata.Tags);
operationOutcomeInfo = new ChannelOperationOutcomeInfo(operationMonitoringInfo.ChannelOperationTrackingCodeId, operationMonitoringInfo.FailedEventType, ChannelOperationOutcome.Failed);
}
else
{
var successEventMetadata = await eventStream.GetLatestRecordMetadataByIdAsync(
operationMonitoringInfo.ChannelOperationTrackingCodeId,
operationMonitoringInfo.SucceededEventType,
recordNotFoundStrategy : RecordNotFoundStrategy.ReturnDefault);
if (successEventMetadata != null)
{
// Merge-in the tags on the success event.
AddMissingTags(inheritableTags, successEventMetadata.Tags);
operationOutcomeInfo = new ChannelOperationOutcomeInfo(operationMonitoringInfo.ChannelOperationTrackingCodeId, operationMonitoringInfo.SucceededEventType, ChannelOperationOutcome.Succeeded);
}
else
{
// Neither succeeded nor failed, cancel the run and let this handler try again in the future.
throw new SelfCancelRunningExecutionException(Invariant($"Notification '{executeOpRequestedEvent.Id}' is being sent on the '{channel.GetType().ToStringReadable()}' channel via channel-operation '{operationMonitoringInfo.ChannelOperationTrackingCodeId}', however the events that indicate whether the operation succeeded ('{operationMonitoringInfo.SucceededEventType}') or failed ('{operationMonitoringInfo.FailedEventType}') do not exist in the channel event stream. Is the operation still executing? Cancelling the handling of this Saga operation."));
}
}
operationsOutcomeInfo.Add(operationOutcomeInfo);
}
}
// Write the AttemptToSendNotificationEventBase to the Event Stream.
var notificationTrackingCodeId = processSendNotificationSagaOp.NotificationTrackingCodeId;
var attemptToSendNotificationResult = new AttemptToSendNotificationResult(channelToOperationsOutcomeInfoMap);
var attemptToSendNotificationOutcome = attemptToSendNotificationResult.GetOutcome();
AttemptToSendNotificationEventBase attemptToSendNotificationEvent;
switch (attemptToSendNotificationOutcome)
{
case AttemptToSendNotificationOutcome.SentOnAllPreparedChannels:
attemptToSendNotificationEvent = new SentOnAllPreparedChannelsEvent(notificationTrackingCodeId, DateTime.UtcNow, attemptToSendNotificationResult);
break;
case AttemptToSendNotificationOutcome.SentOnSomePreparedChannels:
attemptToSendNotificationEvent = new SentOnSomePreparedChannelsEvent(notificationTrackingCodeId, DateTime.UtcNow, attemptToSendNotificationResult);
break;
case AttemptToSendNotificationOutcome.CouldNotSendOnAnyPreparedChannel:
attemptToSendNotificationEvent = new CouldNotSendOnAnyPreparedChannelEvent(notificationTrackingCodeId, DateTime.UtcNow, attemptToSendNotificationResult);
break;
default:
throw new NotSupportedException(Invariant($"This {nameof(AttemptToSendNotificationOutcome)} is not supported: {attemptToSendNotificationOutcome}."));
}
var tags = this.buildAttemptToSendNotificationEventTagsProtocol.ExecuteBuildTags(notificationTrackingCodeId, attemptToSendNotificationEvent, inheritableTags);
await this.notificationEventStream.PutWithIdAsync(notificationTrackingCodeId, attemptToSendNotificationEvent, tags, ExistingRecordStrategy.DoNotWriteIfFoundByIdAndType);
}