/// <summary>
/// Processes the data in accordance with the formulas.
/// </summary>
private RatingsStorage?AppraiseThings()
{
RatingsStorage?ratingsStorage = null;
try
{
IReadOnlyList <RawDataContainer> results =
DataBaseManager.GetResultsFromDbWithAdditionalInfo();
ProcessedDataContainer ratings = AppraisersManager.GetAllRatings(results);
ratingsStorage = ratings.RatingsStorage;
if (ratings.Data.Count == 0)
{
GlobalMessageHandler.OutputMessage(
"Appraisers have not calculated ratings. Result is empty."
);
_status = ServiceStatus.Nothing;
}
else
{
DataBaseManager.DeleteResultAndRatings();
DataBaseManager.PutRatingsToDb(ratings);
GlobalMessageHandler.OutputMessage(
"Appraisers have calculated ratings successfully."
);
_status = ServiceStatus.Ok;
}
}
catch (Exception ex)
{
_logger.Error(ex, "Exception occured during appraising work.");
_status = ServiceStatus.AppraiseError;
}
return(ratingsStorage);
}
public void PutRatingsToDb(ProcessedDataContainer ratings)
{
foreach (Rating rating in ratings.RatingsStorage.GetAllRatings())
{
if (!_ratingRepository.Contains(rating.RatingId))
{
_ratingRepository.InsertItem(rating);
}
}
foreach (IReadOnlyList <ResultInfo> datum in ratings.Data)
{
// Skip empty collections of data.
if (datum.IsNullOrEmpty())
{
continue;
}
foreach (ResultInfo info in datum)
{
_resultRepository.InsertItem(info);
}
}
}