public async Task <ActiveRoutineInfo> ScheduleContinuationAsync(
ContinueRoutineIntent intent, CancellationToken ct)
{
var eventData = new RoutineEventData
{
ServiceId = intent.Continuation.ServiceId,
Routine = intent.Continuation.Routine,
Callee = intent.Callee,
Result = _serializer.SerializeToString(intent.Result)
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.ContinueRoutine.Name,
EventTypeVersion = DasyncCloudEventsTypes.ContinueRoutine.Version,
Source = "/" + (intent.Callee?.ServiceId.ServiceName ?? ""),
EventID = intent.Id.ToString(),
EventTime = DateTimeOffset.Now,
EventDeliveryTime = intent.Continuation.ContinueAt?.ToUniversalTime(),
ETag = intent.Continuation.Routine.ETag,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var message = new CloudQueueMessage(
JsonConvert.SerializeObject(eventEnvelope,
CloudEventsSerialization.JsonSerializerSettings));
TimeSpan?delay = null;
if (intent.Continuation.ContinueAt.HasValue)
{
delay = intent.Continuation.ContinueAt.Value.ToUniversalTime() - DateTime.UtcNow;
if (delay <= TimeSpan.Zero)
{
delay = null;
}
}
while (true)
{
try
{
await _transitionsQueue.AddMessageAsync(message, null, delay, ct);
break;
}
catch (QueueDoesNotExistException)
{
await _transitionsQueue.CreateAsync(ct);
}
}
return(new ActiveRoutineInfo
{
RoutineId = intent.Continuation.Routine.RoutineId,
ETag = intent.Continuation.Routine.ETag
});
}
private async Task RunRoutineAsync(RoutineEventEnvelope eventEnvelope, CancellationToken ct)
{
for (; ;)
{
var carrier = new TransitionCarrier(this, eventEnvelope);
//var transitionInfo = await data.GetTransitionDescriptorAsync(ct);
//if (transitionInfo.Type == TransitionType.InvokeRoutine ||
// transitionInfo.Type == TransitionType.ContinueRoutine)
//{
// var routineDescriptor = await data.GetRoutineDescriptorAsync(ct);
// if (!string.IsNullOrEmpty(transitionInfo.ETag) &&
// transitionInfo.ETag != routineDescriptor.ETag)
// {
// // Ignore - stale duplicate message
// return;
// }
//}
try
{
await _transitionRunner.RunAsync(carrier, ct);
break;
}
catch (ConcurrentRoutineExecutionException)
{
// re-try
continue;
}
}
}
public async Task <ActiveRoutineInfo> ScheduleRoutineAsync(
ExecuteRoutineIntent intent, CancellationToken ct)
{
var pregeneratedRoutineId = intent.Id.ToString();
var routineDescriptor = new RoutineDescriptor
{
IntentId = intent.Id,
MethodId = intent.MethodId,
RoutineId = pregeneratedRoutineId
};
var eventData = new RoutineEventData
{
ServiceId = intent.ServiceId,
Routine = routineDescriptor,
Caller = intent.Caller,
Continuation = intent.Continuation,
Parameters = _serializer.SerializeToString(intent.Parameters)
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.InvokeRoutine.Name,
EventTypeVersion = DasyncCloudEventsTypes.InvokeRoutine.Version,
Source = "/" + (intent.Caller?.ServiceId.ServiceName ?? ""),
EventID = intent.Id.ToString(),
EventTime = DateTimeOffset.Now,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var message = new CloudQueueMessage(
JsonConvert.SerializeObject(eventEnvelope,
CloudEventsSerialization.JsonSerializerSettings));
while (true)
{
try
{
await _transitionsQueue.AddMessageAsync(message, null, null, ct);
break;
}
catch (QueueDoesNotExistException)
{
await _transitionsQueue.CreateAsync(ct);
}
}
return(new ActiveRoutineInfo
{
RoutineId = pregeneratedRoutineId
});
}
public AzureStorageTransitionCarrier(
RoutineEventEnvelope eventEnvelope,
ICloudTable routinesTable,
ICloudTable servicesTable,
ISerializer serializer)
{
_eventEnvelope = eventEnvelope;
_routinesTable = routinesTable;
_servicesTable = servicesTable;
_serializer = serializer;
}
private async Task RaiseEventAsync(RoutineEventEnvelope eventEnvelope, CancellationToken ct)
{
var routineEventData = JsonConvert.DeserializeObject <RoutineEventData>(eventEnvelope.Data);
var eventDescriptor = new EventDescriptor
{
ServiceId = routineEventData.ServiceId,
EventId = routineEventData.EventId
};
foreach (var eventSubscriberDescriptor in GetEventListeners(eventDescriptor))
{
((FileBasedFabricConnector)Connector).ScheduleRoutineFromEvent(eventSubscriberDescriptor, routineEventData);
}
}
public Task <ActiveRoutineInfo> ScheduleRoutineAsync(
ExecuteRoutineIntent intent, CancellationToken ct)
{
var pregeneratedRoutineId = intent.Id.ToString();
var routineDescriptor = new RoutineDescriptor
{
IntentId = intent.Id,
MethodId = intent.MethodId,
RoutineId = pregeneratedRoutineId
};
var eventData = new RoutineEventData
{
ServiceId = intent.ServiceId,
Routine = routineDescriptor,
Caller = intent.Caller,
Continuation = intent.Continuation,
Parameters = _serializer.SerializeToString(intent.Parameters)
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.InvokeRoutine.Name,
EventTypeVersion = DasyncCloudEventsTypes.InvokeRoutine.Version,
Source = "/" + (intent.Caller?.ServiceId.ServiceName ?? ""),
EventID = intent.Id.ToString(),
EventTime = DateTimeOffset.Now,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var fileName = intent.Id.ToString() + ".json";
var filePath = Path.Combine(_transitionsDirectory, fileName);
var content = CloudEventsSerialization.Serialize(eventEnvelope);
File.WriteAllText(filePath, content, Encoding.UTF8);
var info = new ActiveRoutineInfo
{
RoutineId = pregeneratedRoutineId
};
return(Task.FromResult(info));
}
internal void ScheduleRoutineFromEvent(EventSubscriberDescriptor eventSubscriberDescriptor, RoutineEventData raisedEventData)
{
var intentId = _idGenerator.NewId();
var pregeneratedRoutineId = intentId.ToString();
var routineDescriptor = new RoutineDescriptor
{
IntentId = intentId,
MethodId = eventSubscriberDescriptor.MethodId,
RoutineId = pregeneratedRoutineId
};
var eventData = new RoutineEventData
{
ServiceId = eventSubscriberDescriptor.ServiceId,
Routine = routineDescriptor,
Caller = new CallerDescriptor
{
ServiceId = raisedEventData.ServiceId
},
Parameters = raisedEventData.Parameters
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.InvokeRoutine.Name,
EventTypeVersion = DasyncCloudEventsTypes.InvokeRoutine.Version,
Source = "/" + (raisedEventData.ServiceId?.ServiceName ?? ""),
EventID = intentId.ToString(),
EventTime = DateTimeOffset.Now,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var fileName = intentId.ToString() + ".json";
var filePath = Path.Combine(_transitionsDirectory, fileName);
var content = CloudEventsSerialization.Serialize(eventEnvelope);
File.WriteAllText(filePath, content, Encoding.UTF8);
}
public Task PublishEventAsync(RaiseEventIntent intent, CancellationToken ct)
{
var eventData = new RoutineEventData
{
ServiceId = intent.ServiceId,
EventId = intent.EventId,
Parameters = _serializer.SerializeToString(intent.Parameters)
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.RaiseEvent.Name,
EventTypeVersion = DasyncCloudEventsTypes.RaiseEvent.Version,
Source = "/" + (intent.ServiceId.ServiceName ?? ""),
EventID = intent.Id.ToString(),
EventTime = DateTimeOffset.Now,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var content = CloudEventsSerialization.Serialize(eventEnvelope);
foreach (var eventsDirectory in ReadEventObservers())
{
var fileName = intent.Id.ToString() + ".json";
var filePath = Path.Combine(eventsDirectory, fileName);
try
{
File.WriteAllText(filePath, content, Encoding.UTF8);
}
catch (IOException)
{
}
}
return(Task.FromResult(0));
}
public Task <ActiveRoutineInfo> ScheduleContinuationAsync(
ContinueRoutineIntent intent, CancellationToken ct)
{
var eventData = new RoutineEventData
{
ServiceId = intent.Continuation.ServiceId,
Routine = intent.Continuation.Routine,
Callee = intent.Callee,
Result = _serializer.SerializeToString(intent.Result)
};
var eventEnvelope = new RoutineEventEnvelope
{
CloudEventsVersion = CloudEventsEnvelope.Version,
EventType = DasyncCloudEventsTypes.ContinueRoutine.Name,
EventTypeVersion = DasyncCloudEventsTypes.ContinueRoutine.Version,
Source = "/" + (intent.Callee?.ServiceId.ServiceName ?? ""),
EventID = intent.Id.ToString(),
EventTime = DateTimeOffset.Now,
EventDeliveryTime = intent.Continuation.ContinueAt?.ToUniversalTime(),
ETag = intent.Continuation.Routine.ETag,
ContentType = "application/json",
Data = CloudEventsSerialization.Serialize(eventData)
};
var fileName = intent.Id.ToString() + ".json";
var filePath = Path.Combine(_transitionsDirectory, fileName);
var content = CloudEventsSerialization.Serialize(eventEnvelope);
File.WriteAllText(filePath, content, Encoding.UTF8);
var info = new ActiveRoutineInfo
{
RoutineId = intent.Continuation.Routine.RoutineId
};
return(Task.FromResult(info));
}
public TransitionCarrier(FileBasedFabric fabric, RoutineEventEnvelope eventEnvelope)
{
_fabric = fabric;
_eventEnvelope = eventEnvelope;
}