void InvokeSagaNotFoundHandlers(ActiveSagaInstance sagaInstance)
{
logger.InfoFormat("Could not find a saga for the message type {0} with id {1}. Going to invoke SagaNotFoundHandlers.", sagaInstance.MessageToProcess.GetType().FullName, currentContext.TransportMessage.Id);
foreach (var handler in currentContext.Builder.BuildAll <IHandleSagaNotFound>())
{
logger.DebugFormat("Invoking SagaNotFoundHandler: {0}", handler.GetType().FullName);
handler.Handle(sagaInstance.MessageToProcess);
}
}
public void Invoke(HandlerInvocationContext context, Action next)
{
var saga = context.MessageHandler.Instance as ISaga;
if (saga == null)
{
next();
return;
}
currentContext = context;
var sagaInstanceState = new ActiveSagaInstance(saga);
//so that other behaviors can access the saga
context.Set(sagaInstanceState);
var loadedEntity = TryLoadSagaEntity(saga, context.LogicalMessage);
if (loadedEntity == null)
{
//if this message are not allowed to start the saga
if (!Features.Sagas.ShouldMessageStartSaga(sagaInstanceState.SagaType, context.LogicalMessage.MessageType))
{
sagaInstanceState.MarkAsNotFound();
InvokeSagaNotFoundHandlers();
return;
}
sagaInstanceState.AttachNewEntity(CreateNewSagaEntity(sagaInstanceState.SagaType));
}
else
{
sagaInstanceState.AttachExistingEntity(loadedEntity);
}
if (IsTimeoutMessage(context.LogicalMessage))
{
context.MessageHandler.Invocation = HandlerInvocationCache.InvokeTimeout;
}
next();
if (sagaInstanceState.NotFound)
{
return;
}
if (saga.Completed)
{
if (!sagaInstanceState.IsNew)
{
SagaPersister.Complete(saga.Entity);
}
if (saga.Entity.Id != Guid.Empty)
{
NotifyTimeoutManagerThatSagaHasCompleted(saga);
}
logger.Debug(string.Format("Saga: '{0}' with Id: '{1}' has completed.", sagaInstanceState.SagaType.FullName, saga.Entity.Id));
}
else
{
if (sagaInstanceState.IsNew)
{
SagaPersister.Save(saga.Entity);
}
else
{
SagaPersister.Update(saga.Entity);
}
}
}
void InvokeSagaNotFoundHandlers(ActiveSagaInstance sagaInstance)
{
logger.InfoFormat("Could not find a saga for the message type {0} with id {1}. Going to invoke SagaNotFoundHandlers.", sagaInstance.MessageToProcess.GetType().FullName, currentContext.TransportMessage.Id);
foreach (var handler in currentContext.Builder.BuildAll<IHandleSagaNotFound>())
{
logger.DebugFormat("Invoking SagaNotFoundHandler: {0}",handler.GetType().FullName);
handler.Handle(sagaInstance.MessageToProcess);
}
}
