Ejemplo n.º 1
0
        public void Save(TAggregateRoot item)
        {
            var uncommittedEvents = item.GetUncommittedEvents().ToArray();

            if (uncommittedEvents.Length == 0)
            {
                return;
            }

            if (_loaded.Contains(item.Id))
            {
                object[] baseAndUnseenEvents = _eventStore.Load(item.Id).ToArray();

                if (baseAndUnseenEvents.Length > 0)
                {
                    var unseenEvents = GetUnseenEvents(item, baseAndUnseenEvents);
                    var conflicts    = _concurrencyMonitor.CheckForConflicts(unseenEvents, uncommittedEvents);
                    if (conflicts.Any())
                    {
                        var exception = new ConcurrencyConflictsDetectedException(conflicts);
                        exception.Data.Add("AggregateId", item.Id);
                        throw exception;
                    }
                }

                _eventStore.Update(item.Id, uncommittedEvents);
            }
            else
            {
                _eventStore.Add(item.Id, uncommittedEvents);
                _loaded.Add(item.Id);
            }

            item.AcceptUncommittedEvents();
        }
        public void Save(TAggregateRoot item)
        {
            var uncommittedEvents = item.GetUncommittedEvents().ToArray();

            if (uncommittedEvents.Length == 0)
            {
                return;
            }

            var streamId = EventStreamIdFormatter.GetStreamId <TAggregateRoot>(item.Id.ToString());

            try
            {
                _eventStore.Save <TAggregateRoot>(streamId, item.BaseVersion, uncommittedEvents);
            }
            catch (EventStoreConcurrencyException)
            {
                EventStream <TAggregateRoot> stream = _eventStore.Load <TAggregateRoot>(streamId);

                if (stream != null)
                {
                    IEvent[] baseAndUnseenEvents = stream.Events.ToArray();

                    if (baseAndUnseenEvents.Length > 0)
                    {
                        var unseenEvents = GetUnseenEvents(item, baseAndUnseenEvents);
                        var conflicts    = _concurrencyMonitor.CheckForConflicts(unseenEvents, uncommittedEvents);
                        if (!conflicts.Any())
                        {
                            // Re-version our uncommitted events on top of those already saved to the db.
                            int unseenVersion = unseenEvents.Last().Version;
                            int newVersion    = unseenVersion;

                            foreach (var evt in uncommittedEvents)
                            {
                                evt.Version = ++newVersion;
                            }

                            _eventStore.Save <TAggregateRoot>(streamId, unseenVersion, uncommittedEvents);
                        }
                        else
                        {
                            var exception = new ConcurrencyConflictsDetectedException(conflicts);
                            exception.Data.Add("AggregateId", item.Id);
                            throw exception;
                        }
                    }
                }
            }

            item.AcceptUncommittedEvents();
        }
Ejemplo n.º 3
0
        public void Save(TAggregateRoot item)
        {
            var uncommittedEvents = item.GetUncommittedEvents().ToArray();

            if (uncommittedEvents.Length == 0)
            {
                return;
            }

            object[] baseAndUnseenEvents = _eventStore.Load(item.Id).ToArray();

            if (baseAndUnseenEvents.Length > 0)
            {
                var unseenEvents = GetUnseenEvents(item, baseAndUnseenEvents);
                _concurrencyMonitor.CheckForConflicts(unseenEvents, uncommittedEvents);
            }

            _eventStore.Store(item.Id, uncommittedEvents);
            item.AcceptUncommittedEvents();
        }