public void AppendEventsToStream(IAggregateIdentity aggregateId, int expectedVersion, IEvent[] eventsToAppend)
{
if(!eventsToAppend.Any())
return;
var actualVersion = _persistance.GetVersionFor(aggregateId);
if (actualVersion != expectedVersion)
{
var committedEvents = _persistance.GetEventsFor(aggregateId).Skip(expectedVersion).ToList();
if (_conflictDetector.HasConflict(committedEvents, eventsToAppend))
throw new AggregateConcurrencyException(expectedVersion, actualVersion);
AppendEventsToStream(aggregateId, expectedVersion + committedEvents.Count, eventsToAppend);
return;
}
_persistance.AppendEvents(aggregateId, eventsToAppend);
_publisher.Publish(eventsToAppend);
}