public async Task <T> GetByKeyAsync(Guid aggregateKey)
{
T aggregate;
if (!_memoryCache.TryGetValue <T>(aggregateKey, out aggregate))
{
Memento memento = await _storage.GetMementoAsync(aggregateKey);
using (var ms = new MemoryStream(memento.AggregateBinary))
{
IFormatter iFormatter = new BinaryFormatter();
aggregate = iFormatter.Deserialize(ms) as T;
}
IEnumerable <Event> events = await _storage.GetEventsAsync(aggregateKey, memento.Version);
foreach (Event e in events.OrderBy(o => o.Version))
{
aggregate.ReplayEvent(e);
}
}
return(aggregate);
}