public void SaveEvents(Guid aggregateId, IEnumerable <IEvent> events, int expectedVersion)
{
// Load count of events in the eventsore, for the aggregate with the specified id (To compare versions)
var currentVersionInStore = ExecutedEvents.Count(x => x.AggregateId == aggregateId);
if (currentVersionInStore != expectedVersion)
{
throw new ConcurrencyException();
}
var i = expectedVersion;
foreach (var @event in events)
{
i++;
ExecutedEvents.Add(new ExecutedEvent {
AggregateId = aggregateId, Body = JsonConvert.SerializeObject(@event), BodyType = @event.GetType().GetTypeInfo().Assembly.FullName + "|" + @event.GetType().FullName, Executed = DateTime.UtcNow, Version = i
});
SaveChanges();
_eventPublisher.Publish(@event);
}
}
public List <IEvent> GetEventsForAggregate(Guid aggregateId, int fromVersion = 0)
{
Dictionary <string, string> eventListAsStrings = ExecutedEvents.Where(x => x.AggregateId == aggregateId).ToList().ToDictionary(x => x.BodyType, x2 => x2.Body);
List <IEvent> result = new List <IEvent>();
foreach (var loopObjectAsString in eventListAsStrings)
{
Type eventType = Assembly.Load(new AssemblyName(loopObjectAsString.Key.Split('|')[0])).GetType(loopObjectAsString.Key.Split('|')[1]);
result.Add((IEvent)JsonConvert.DeserializeObject(loopObjectAsString.Value, eventType));
}
if (result.Count == 0)
{
throw new NoEventsFoundForAggregateException();
}
return(result);
}
