public void Handle(IDictionary<string, string> context, IProbe probe)
{
probe.ReferencesCount++;
if (context.ContainsKey(this.Subject))
{
probe.Trace("{0} - subject: {1} evaluating...", this.GetType().Name, this.Subject);
int explicitNoneNegatingNegativeCount = 0;
bool hasExplicitPositiveReferencesForCurrentSubject = false;
foreach (var condition in Conditions)
{
var b = condition.Evaluate(context[this.Subject]);
probe.Trace("{0} - condidtion {1} evaluated to {2}", this.GetType().Name, condition.GetType().Name, b);
// if condition matched
if (b)
{
if (condition.Negate)
{
probe.Trace("{0} excluded value because condidtion {1} evaluated to true and was negated", this.GetType().Name, condition.GetType().Name, b);
probe.Exclude = true;
break;
}
else
{
probe.ExplicitPositiveReferencesCount++;
hasExplicitPositiveReferencesForCurrentSubject = true;
}
}
// if condition did not match
else
{
if (condition.Negate)
{
probe.Trace("{0} - added explicit positive reference, because condidtion {1} evaluated to false and was negated", this.GetType().Name, condition.GetType().Name, b);
probe.ExplicitPositiveReferencesCount++;
hasExplicitPositiveReferencesForCurrentSubject = true;
}
else
{
explicitNoneNegatingNegativeCount++;
}
}
}
if (explicitNoneNegatingNegativeCount > 0 && !hasExplicitPositiveReferencesForCurrentSubject)
{
probe.Trace("excluded value bacause it has no explicit positive references count and {0} explicit none nagating negative references", explicitNoneNegatingNegativeCount);
probe.Exclude = true;
}
}
}
