protected void MakeSureRequestedCalculationIsValid(TargetingCalculationInfo calculationInfo)
{
if (calculationInfo.StatusCode > 0)
{
var issue = new ErrorIssue(
"Your calculation (ID: " + calculationInfo.Id + ") has already been run on " + calculationInfo.StartedOn + ", it doesn't make sense to run the same calcualtion multiple times."
);
throw new ValidationException(issue);
}
}
protected void MakeSureRequestedCalculationIsStillValid(TargetingCalculationInfo calculationInfo, IEnumerable <TargetingCalculationInfo> latestCalculationInfos)
{
try
{
var latestCalculation = latestCalculationInfos.GetEnumerator();
if (!latestCalculation.MoveNext())
{
throw new ApplicationException();
}
var first = latestCalculation.Current;
if (latestCalculation.MoveNext())
{
var second = latestCalculation.Current;
if (first.Id == calculationInfo.Id)
{
// our calculation is on top which is good, however we need to check if the previous calculation was finished
if (second.StatusCode < 1)
{
throw new ApplicationException("There is a calculation (ID: " + second.Id + ") already in the queue. This calculation is either running or failed and somebody needs to clean it up. Try again if a few minutes. If you get the same issue, contact your administrator.");
}
}
else if (second.Id == calculationInfo.Id)
{
// our calculation is second in the list meaning it must be finished
if (second.StatusCode < 1)
{
throw new ApplicationException("Your calculation (ID: " + second.Id + ") has already been run on " + calculationInfo.StartedOn + ", it doesn't make sense to run the same calcualtion multiple times.");
}
else
{
throw new ApplicationException("Your calculation is just weird.");
}
}
else
{
throw new ApplicationException("Your calculation (ID: " + calculationInfo.Id + ") is neither the last one nor the one right before the last one. I am not sure how this can be possible. Anyway, it is a bad situation and there will be no calculations at this time. Sorry.");
}
}
else
{
// there is only one calculation which is...
if (first.Id != calculationInfo.Id)
{
throw new ApplicationException("There is only one calculation in the queue and it is not yours. Weird...");
}
}
}
catch (Exception exception)
{
throw new ValidationException(new ErrorIssue(exception.Message));
}
}
public CalculationInfo RequestCalculation(IDataManager manager)
{
var targetingCOmputationIdRange = manager.ReserveTargetingComputationIds(1);
if (!targetingCOmputationIdRange.MoveNext())
{
throw new ApplicationException("Unable to reserve a targeting computation ID.");
}
var computationId = targetingCOmputationIdRange.Current;
var targetingComputationInfo = new TargetingCalculationInfo(
computationId,
0,
DateTime.Now, // <---- doesn't matter, isn't going to be used anyways
null,
null,
null
);
manager.InsertTargetingComputation(targetingComputationInfo);
return(new CalculationInfo {
Id = computationId
});
}
