public Task Persist(SagaContext saga, ISagaMessage sagaMessage, IMessageHandlerContext context)
{
if (saga is null)
{
throw new ArgumentNullException(nameof(saga), $"A non-null saga is required for persistance.");
}
saga.PersistedAtUtc = DateTime.UtcNow;
_sagaCache[saga.SagaId] = saga;
RemoveExpiredMessagesFromSagaPersistance();
_logger.LogDebug($"Saga persisted to in-memory storage with id '{saga.SagaId}' and status '{saga.Status}'");
return(Task.CompletedTask);
}
public async Task InvokeStep <TMessage>(Func <TMessage, IMessageHandlerContext, Task> sagaStepHandler, ISagaMessage message, IMessageBrokerContext context)
where TMessage : IMessage
{
SagaContext saga = await _sagaInitializer.Initialize(message, context).ConfigureAwait(false);
if (!(sagaStepHandler is null))
{
await sagaStepHandler((TMessage)message, context).ConfigureAwait(false);
}
saga.InProgress();
context.BrokeredMessage.WithSagaStatus(saga.Status.Status);
await _sagaPersister.Persist(saga, message, context).ConfigureAwait(false);
}
public async Task Start <TSagaMessage>(TSagaMessage message, IMessageHandlerContext context)
where TSagaMessage : ISagaMessage
{
SagaContext saga = await _sagaInitializer.Initialize(message, context).ConfigureAwait(false);
var options = _sagaOptionsProvider.GetOptionsFor(message);
var sendOptions = new SendOptions()
.WithSubject(options.Description)
.WithTimeToLiveInMinutes(options.MaxSagaDurationInMinutes)
.WithTransactionMode(options.TransactionMode)
.WithSagaId(saga.SagaId)
.WithSagaStatus(saga.Status.Status);
await _brokeredMessageDispatcher.Send(message, options : sendOptions).ConfigureAwait(false);
saga.InProgress();
await _sagaPersister.Persist(saga, message, context).ConfigureAwait(false);
}
