public ManagerState Load()
{
List<ManagerState> states = new List<ManagerState>();
while (true)
{
var other = RabbitMqStore.Dequeue();
if (other == null)
break;
states.Add(other);
}
var latest = states.OrderByDescending(x => x.Revision).FirstOrDefault();
if (latest == null)
return latest;
RabbitMqStore.AcknowlidgeRange(states.Where(x => x.Revision != latest.Revision));
loaded = latest;
return latest;
}
public void SaveOrUpdate(ref ManagerState state)
{
if (loaded == null)
{
state.Revision = state.Revision + 1;
RabbitMqStore.Enqueue(state);
state = Load();
}
else if (loaded != state)
{
throw new ArgumentException("The current state was not loaded from this repository.This repository can contain only one item ^^");
}
else
{
state.Revision = state.Revision + 1;
RabbitMqStore.Enqueue(state);
RabbitMqStore.Acknowlidge(state);
state = Load();
}
}
