public async Task <EventWriteResult> Save(List <IEvent> events, string streamName, long expectedVersion)
{
var eventWriteResult = new EventWriteResult();
var eventData = events
.Select(MapEventToEventData)
.ToArray();
try
{
await _connection.AppendToStreamAsync(streamName, expectedVersion, eventData);
eventWriteResult.WriteStatus = WriteStatus.Success;
}
catch (WrongExpectedVersionException ex)
{
_logger.LogWarning(ex, "WrongExpectedVersionException");
eventWriteResult.WriteStatus = WriteStatus.WrongExpectedVersion;
}
catch (Exception ex)
{
_logger.LogError($"Exception of type [{ex.GetType().Name}] - Message = {ex.Message}");
eventWriteResult.WriteStatus = WriteStatus.Error;
}
return(eventWriteResult);
}
public async Task <EventWriteResult> Save(IAggregate aggregate)
{
var streamName = _streamNameProvider.GetStreamName(Type, aggregate.Id);
EventWriteResult result;
bool committed = false;
if (!aggregate.HasProcessed)
{
result = await _eventPersistenceClient.Save(aggregate.GetPendingChanges().ToList(), streamName, aggregate.ExpectedVersion);
committed = true;
}
else
{
result = new EventWriteResult()
{
WriteStatus = WriteStatus.AlreadyProcessed
};
}
aggregate.ClearPendingChanges(committed);
return(result);
}
