public virtual void Save(T aggregate, int expected_version)
{
var events = aggregate.GetUncommittedChanges().ToArray();
int current_expected_version = expected_version;
while (true)
{
try {
Save(aggregate.ID, events, current_expected_version);
break;
} catch (AggregateException e) {
if (e.InnerException == null ||
!(e.InnerException is WrongExpectedVersionException))
{
throw;
}
IList <Event> events_since =
storage_.GetEventsForAggregateSince(aggregate.ID, serialzer_,
expected_version);
if (events_since.Count == 0)
{
throw new AggregateException("The current version is earlier than "
+ " the expected.");
}
foreach (Event commited_event in events_since)
{
foreach (Event @event in events)
{
if (conflict_evaluator_.ConflictWith(commited_event, @event))
{
throw new ConcurrencyException();
}
}
}
current_expected_version = events_since.Last().Version;
}
}
}