void IEventStore.SaveEvents(ItemIdentity aggregateId, IEnumerable <Event> events, int expectedVersion)
{
List <EventDescriptor> eventDescriptors;
// try to get event descriptors list for given aggregate id
// otherwise -> create empty dictionary
if (!_current.TryGetValue(aggregateId, out eventDescriptors))
{
eventDescriptors = new List <EventDescriptor>();
_current.Add(aggregateId, eventDescriptors);
}
// check whether latest event version matches current aggregate version
// otherwise -> throw exception
else if (eventDescriptors[eventDescriptors.Count - 1].Version != expectedVersion && expectedVersion != -1)
{
throw new ConcurrencyException();
}
var i = expectedVersion;
// iterate through current aggregate events increasing version with each processed event
foreach (var @event in events)
{
i++;
@event.Version = i;
// push event to the event descriptors list for current aggregate
eventDescriptors.Add(new EventDescriptor(aggregateId, @event, i));
// publish current event to the bus for further processing by subscribers
_publisher.Publish(@event);
}
}
void IEventStore.SaveEvents(ItemIdentity aggregateId, IEnumerable<Event> events, int expectedVersion)
{
List<EventDescriptor> eventDescriptors;
// try to get event descriptors list for given aggregate id
// otherwise -> create empty dictionary
if (!_current.TryGetValue(aggregateId, out eventDescriptors))
{
eventDescriptors = new List<EventDescriptor>();
_current.Add(aggregateId, eventDescriptors);
}
// check whether latest event version matches current aggregate version
// otherwise -> throw exception
else if (eventDescriptors[eventDescriptors.Count - 1].Version != expectedVersion && expectedVersion != -1)
{
throw new ConcurrencyException();
}
var i = expectedVersion;
// iterate through current aggregate events increasing version with each processed event
foreach (var @event in events)
{
i++;
@event.Version = i;
// push event to the event descriptors list for current aggregate
eventDescriptors.Add(new EventDescriptor(aggregateId, @event, i));
// publish current event to the bus for further processing by subscribers
_publisher.Publish(@event);
}
}
public T GetId(ItemIdentity identity)
{
var obj = new T();//lots of ways to do this
var e = _storage.GetEventsForAggregate(identity);
obj.LoadsFromHistory(e);
return(obj);
}
List <Event> IEventStore.GetEventsForAggregate(ItemIdentity aggregateId)
{
List <EventDescriptor> eventDescriptors;
if (!_current.TryGetValue(aggregateId, out eventDescriptors))
{
throw new AggregateNotFoundException();
}
return(eventDescriptors.Select(desc => desc.EventData).ToList());
}
List<Event> IEventStore.GetEventsForAggregate(ItemIdentity aggregateId)
{
List<EventDescriptor> eventDescriptors;
if (!_current.TryGetValue(aggregateId, out eventDescriptors))
{
throw new AggregateNotFoundException();
}
return eventDescriptors.Select(desc => desc.EventData).ToList();
}
public EventDescriptor(ItemIdentity id, Event eventData, int version)
{
Id = id;
EventData = eventData;
Version = version;
}
public InventoryItemDeactivated(ItemIdentity id) : base(id)
{
}
public ItemCreatedEvent(ItemIdentity id)
{
Id = id;
}
public InventoryItemRenamed(ItemIdentity id,string name)
{
Name = name;
}
public EventDescriptor(ItemIdentity id, Event eventData, int version)
{
Id = id;
EventData = eventData;
Version = version;
}
public ItemsCheckedInToInventory(ItemIdentity id, int count)
{
Count = count;
}
public ItemCreatedEvent(ItemIdentity id)
{
Id = id;
}
public AggregateRoot(ItemIdentity id)
{
Id = id;
}
public InventoryItemCreated(ItemIdentity id,string name) :base(id)
{
}