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);
}
public void Save(IAggregate aggregate, Guid commitId, Action <IDictionary <string, object> > updateHeaders)
{
var commitHeaders = new Dictionary <string, object>
{
{ CommitIdHeader, commitId },
{ AggregateClrTypeHeader, aggregate.GetType().AssemblyQualifiedName }
};
updateHeaders(commitHeaders);
var streamName = _aggregateIdToStreamName(aggregate.GetType(), aggregate.Id);
var newEvents = aggregate.GetUncommittedEvents().Cast <object>().ToList();
var originalVersion = aggregate.Version - newEvents.Count;
var expectedVersion = originalVersion == 0 ? ExpectedVersion.NoStream : originalVersion;
var eventsToSave = newEvents.Select(e => ToEventData(Guid.NewGuid(), e, commitHeaders)).ToList();
if (eventsToSave.Count < WritePageSize)
{
_eventStoreConnection.AppendToStream(streamName, expectedVersion, eventsToSave);
}
else
{
var transaction = _eventStoreConnection.StartTransaction(streamName, expectedVersion);
var position = 0;
while (position < eventsToSave.Count)
{
var pageEvents = eventsToSave.Skip(position).Take(WritePageSize);
transaction.Write(pageEvents);
position += WritePageSize;
}
transaction.Commit();
}
aggregate.ClearUncommittedEvents();
}