public IEnumerable <Event> LoadEventsFor <TAggregate>(Guid id)
{
var streamName = GetStreamName <TAggregate>(id);
var results = new List <Event>();
var moreResults = true;
while (moreResults)
{
var eventsForAggregate = esConnection.ReadStreamEventsForward(streamName, 0, 1000, false);
if (eventsForAggregate.Status != SliceReadStatus.Success)
{
return(new List <Event>());
}
var events = eventsForAggregate.Events
.Where(_ => _.Event.EventType != "$stream-created-implicit")
.Select(_ =>
{
var value = BytesToString.ToString(_.Event.Data);
var eventType = JsonConvert.DeserializeObject <Type>(BytesToString.ToString(_.Event.Metadata));
// var methodInfo = typeof (JsonConvert).GetMethods()
// .Where(info => info.Name == "DeserializeObject")
// .Where(info => info.IsGenericMethod)
// .Where(info => info.IsStatic)
// .Where(info => info.GetParameters().Length == 1 && info.GetParameters().Single().ParameterType == typeof(String))
// .Single();
//
// return (Event) methodInfo
// .MakeGenericMethod(Type.GetType(type))
// .Invoke(null, new[] {value});
return((Event)JsonConvert.DeserializeObject(value, eventType));
});
results.AddRange(events.ToList());
moreResults = !eventsForAggregate.IsEndOfStream;
}
return(results);
}
public void SaveEventsFor <TAggregate>(Guid?id, int eventsLoaded, IEnumerable <Event> newEvents)
{
if (!id.HasValue)
{
throw new ArgumentException("Why no id?");
}
var events = new List <EventData>();
foreach (var newEvent in newEvents)
{
var eventBytes = BytesToString.ToBytes(JsonConvert.SerializeObject(newEvent, new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.All
}));
var typeMeta = BytesToString.ToBytes(JsonConvert.SerializeObject(newEvent.GetType(), new JsonSerializerSettings()
{
TypeNameHandling = TypeNameHandling.All
}));
events.Add(new EventData(Guid.NewGuid(), aggregateStreamName, true, eventBytes, typeMeta));
}
esConnection.AppendToStream(GetStreamName <TAggregate>(id.Value), eventsLoaded, events);
}
