public bool HasFeature(string featureName, string featureValue)
{
if (_featureSpecifications.ContainsKey(featureName))
{
List <FeatureSpec> featureVals = _featureSpecifications[featureName];
FeatureSpec spec = featureVals.Find(delegate(FeatureSpec fs) { return(fs.FeatureValue == featureValue); });
return(spec != null);
}
return(false);
}
public FeatureSpec GetFeatureSpec(string featureName, string featureValue)
{
if (!_featureSpecifications.ContainsKey(featureName))
{
return(null);
}
List <FeatureSpec> featureVals = _featureSpecifications[featureName];
FeatureSpec spec = featureVals.Find(delegate(FeatureSpec fs) { return(fs.FeatureValue == featureValue); });
return(spec);
}
/// <summary>
/// instantiates a featureSpecification object and adds it to the blueprint. If it finds a matching existing specification,
/// it replaces it with the new one
/// </summary>
/// <param name="featureName">e.g., Strand</param>
/// <param name="featureValue">e.g., Algebra</param>
/// <param name="minNum">minimum allowable number</param>
/// <param name="maxNum">maximim allowable number</param>
/// <param name="startAbility">starting ability on for this feature/value pair. May be null</param>
/// <param name="startInfo">starting information on this feature/value pair. May be null</param>
/// <param name="cut">cut score on this feature/value pair</param>
/// <param name="lambda">lambda multiplier. see adaptive algorithm</param>
internal void AddFeatureSpecification(string featureName, string featureValue, int minNum, int maxNum, double startAbility, double startInfo, double cut, double lambda, double scaleCutScore, string testSegment)
{
FeatureSpec spec = new FeatureSpec(featureName, featureValue, minNum, maxNum, startAbility, startInfo, cut, lambda, scaleCutScore, testSegment);
if (!_featureSpecifications.ContainsKey(featureName))
{
_featureSpecifications.Add(featureName, new List <FeatureSpec>());
}
List <FeatureSpec> lstSpec = _featureSpecifications[featureName];
if (lstSpec.Find(delegate(FeatureSpec existSpec) { return(featureValue == existSpec.FeatureValue); }) != null)
{
lstSpec.RemoveAll(delegate(FeatureSpec existSpec) { return(featureValue == existSpec.FeatureValue); });
}
lstSpec.Add(spec);
}