public static RatingSource DirectRating(AbsoluteRating source)
{
RatingSource cause = new RatingSource("Direct");
cause.Converted = source;
return(cause);
}
public override Rating MakeCopy()
{
AbsoluteRating copy = new AbsoluteRating();
copy.CopyFrom(this);
return(copy);
}
public int Compare(Participation a, Participation b)
{
AbsoluteRating ratingA = a.GetAbsoluteRating();
AbsoluteRating ratingB = b.GetAbsoluteRating();
double scoreA;
double scoreB;
if (ratingA != null)
{
scoreA = ratingA.Score;
}
else
{
scoreA = double.NegativeInfinity;
}
if (ratingB != null)
{
scoreB = ratingB.Score;
}
else
{
scoreB = double.NegativeInfinity;
}
return(scoreA.CompareTo(scoreB));
}
public void CopyFrom(AbsoluteRating original)
{
this.Score = original.Score;
this.Date = original.Date;
this.ActivityDescriptor = original.ActivityDescriptor;
this.FromUser = original.FromUser;
base.CopyFrom(original);
}
// returns an AbsoluteRating that contains as much information as possible
public AbsoluteRating GetAbsoluteRating()
{
Rating fullRating = this.rating as RelativeRating;
if (fullRating == null)
{
return(null);
}
AbsoluteRating converted = new AbsoluteRating();
converted.AttemptToMatch(this);
converted.Score = fullRating.GetScoreForDescriptor(this.ActivityDescriptor);
return(converted);
}
public AbsoluteRating(AbsoluteRating original)
{
this.Initialize();
this.CopyFrom(original);
}
public virtual AbsoluteRating ProcessRating(AbsoluteRating newRating)
{
return(newRating);
}
public override RelativeRating ProcessRating(RelativeRating newRating)
{
if (!this.recomputeRatings)
{
return(newRating);
}
System.Diagnostics.Debug.WriteLine("Adding rating with date " + ((DateTime)newRating.FirstRating.Date).ToString());
AbsoluteRating otherRating = newRating.FirstRating;
AbsoluteRating thisRating = newRating.SecondRating;
if (newRating.Source != null)
{
Participation participation = newRating.Source.ConvertedAsParticipation;
RelativeRating rawRating = participation.Rating as RelativeRating;
if (rawRating.BetterRating.Date == null && rawRating.WorseRating.Date != null)
{
// This one is BetterRating
thisRating = newRating.BetterRating;
otherRating = newRating.WorseRating;
}
else
{
// This one is WorseRating
thisRating = newRating.WorseRating;
otherRating = newRating.BetterRating;
}
}
if (newRating.RawScoreScale == null)
{
// The relative rating simply said "activity X is better than Y"
// We might as well assign the same scale that the previous algorithm had computed
double scale = thisRating.Score / otherRating.Score;
newRating.RawScoreScale = scale;
}
Participation otherParticipation = null;
if (otherRating.Source != null)
{
otherParticipation = otherRating.Source.ConvertedAsParticipation;
}
Participation thisParticipation = null;
if (thisRating.Source != null)
{
thisParticipation = thisRating.Source.ConvertedAsParticipation;
}
if (otherParticipation != null && thisParticipation != null)
{
RelativeRating modifiedRating = this.engine.MakeRelativeRating(thisParticipation.ActivityDescriptor, thisParticipation.StartDate, newRating.RawScoreScale.Value, otherParticipation);
if (modifiedRating.BetterRating.ActivityDescriptor != null)
{
if (!modifiedRating.BetterRating.ActivityDescriptor.CanMatch(newRating.BetterRating.ActivityDescriptor))
{
throw new Exception("Internal error: RatingRenormalizer swapped ratings while rewriting them");
}
}
if (modifiedRating.WorseRating.ActivityDescriptor != null)
{
if (!modifiedRating.WorseRating.ActivityDescriptor.CanMatch(newRating.WorseRating.ActivityDescriptor))
{
throw new Exception("Internal error: RatingRenormalizer swapped ratings while rewriting them");
}
}
if (modifiedRating.BetterRating.ActivityDescriptor == null && modifiedRating.WorseRating.ActivityDescriptor == null)
{
throw new Exception("Internal error: RatingRenormalizer created rating that does not specify an activity");
}
return(modifiedRating);
}
return(newRating);
}
