public virtual async Task When(Guid id, TCommand cmd)
{
_logger.Debug("Invoking a command {commandType} on an aggregate: {aggregateType}", cmd.GetType().Name, typeof(TAggregate).Name);
var events = _eventStream.Get(id);
var aggregate = new TAggregate();
aggregate.Id = id;
await aggregate.RehydrateAsync(events);
var version = aggregate.Version;
var published = aggregate.Execute(cmd);
var commitedEvents =
version == 0 ? await _eventStream.Append(aggregate.Id, cmd.Id, published) :
await _eventStream.Append(aggregate.Id, version - 1, cmd.Id, published);
// We return events to client - think about correlation-id solution?
var current = _sessionContext.Current();
if (current.IsValid)
{
_logger.Information("Sending events {eventsCount} on session {sessionId}.", commitedEvents.Length, current.Id);
current.SendEvents(commitedEvents);
}
}
