public BLModel.CurrentAiringId Distribute(string prefix)
{
bool isLocked = false;
BLModel.CurrentAiringId nextAiringId = null;
lock (lockObject)
{
if (_query.Get(prefix) == null)
{
var message = string.Format("An airing id prefix does not exist for '{0}'. You must create and airing id prefix before sending this request.", prefix);
throw new Exception(message);
}
try
{
nextAiringId = _command.Lock(prefix).ToBusinessModel <CurrentAiringId, BLModel.CurrentAiringId>();;
if (nextAiringId == null)
{
var message = string.Format("Null value returned from lock '{0}'", prefix);
throw new Exception(message);
}
isLocked = true;
var result = nextAiringId.SequenceNumber > 0
? _creator.Create(nextAiringId.Prefix, nextAiringId.SequenceNumber)
: _creator.Create(nextAiringId.Prefix);
nextAiringId.AiringId = result.AiringId;
nextAiringId.BillingNumber.Increment();
nextAiringId.ModifiedDateTime = DateTime.UtcNow;
_command.UpdateAndUnlock(nextAiringId.ToDataModel <BLModel.CurrentAiringId, CurrentAiringId>());
}
catch (Exception ex)
{
if (isLocked)
{
_command.UnLock(prefix);
}
throw ex;
}
}
return(nextAiringId);
}
public CurrentAiringId Create(string prefix)
{
var newAiringId = creator.Create(prefix);
return(creator.Save(newAiringId));
}