/// <summary>
/// Enlists the facts/literals which are directly (or indirectly, if inference is requested) members of the lens class
/// </summary>
public List <(bool, RDFOntologyResource)> Members(bool enableInference)
{
List <(bool, RDFOntologyResource)> result = new List <(bool, RDFOntologyResource)>();
//First-level enlisting of members (datatype class)
if (RDFOntologyHelper.CheckIsLiteralCompatibleClass(this.Ontology.Model.ClassModel, this.OntologyClass))
{
IEnumerable <RDFOntologyLiteral> ontlits = this.Ontology.Data.Literals.Values.Where(ol => ol.Value is RDFTypedLiteral);
foreach (RDFOntologyLiteral ontlit in ontlits.Where(ol => RDFModelUtilities.GetDatatypeFromEnum(((RDFTypedLiteral)ol.Value).Datatype).Equals(this.OntologyClass.ToString())))
{
if (!result.Any(ol => ol.Equals(ontlit)))
{
result.Add((false, ontlit));
}
}
}
//First-level enlisting of members (object class)
else
{
foreach (RDFOntologyTaxonomyEntry sf in this.Ontology.Data.Relations.ClassType.SelectEntriesByObject(this.OntologyClass).Where(te => !te.IsInference()))
{
result.Add((false, sf.TaxonomySubject));
}
}
//Inference-enabled discovery of members
if (enableInference)
{
RDFOntologyData members = RDFOntologyHelper.GetMembersOf(this.Ontology, this.OntologyClass);
foreach (RDFOntologyFact fact in members)
{
if (!result.Any(f => f.Item2.Equals(fact)))
{
result.Add((true, fact));
}
}
foreach (RDFOntologyLiteral literal in members.Literals.Values)
{
if (!result.Any(f => f.Item2.Equals(literal)))
{
result.Add((true, literal));
}
}
}
return(result);
}
/// <summary>
/// Enlists the classes to which the lens fact directly (or indirectly, if inference is requested) belongs
/// </summary>
public List <(bool, RDFOntologyClass)> ClassTypes(bool enableInference)
{
List <(bool, RDFOntologyClass)> result = new List <(bool, RDFOntologyClass)>();
//First-level enlisting of class types
foreach (RDFOntologyTaxonomyEntry sf in this.Ontology.Data.Relations.ClassType.SelectEntriesBySubject(this.OntologyFact).Where(te => !te.IsInference()))
{
result.Add((false, (RDFOntologyClass)sf.TaxonomyObject));
}
//Inference-enabled discovery of class types
if (enableInference)
{
//Skip already enlisted classes and also reserved/literal-compatible classes
var availableclasses = this.Ontology.Model.ClassModel.Where(cls => !result.Any(res => res.Item2.Equals(cls)) &&
!RDFOntologyChecker.CheckReservedClass(cls) &&
!RDFOntologyHelper.CheckIsLiteralCompatibleClass(this.Ontology.Model.ClassModel, cls));
var membersCache = new Dictionary <long, RDFOntologyData>();
//Evaluate enumerations
foreach (var e in availableclasses.Where(cls => cls.IsEnumerateClass()))
{
if (!membersCache.ContainsKey(e.PatternMemberID))
{
membersCache.Add(e.PatternMemberID, this.Ontology.GetMembersOfEnumerate((RDFOntologyEnumerateClass)e));
}
if (membersCache[e.PatternMemberID].Facts.ContainsKey(this.OntologyFact.PatternMemberID))
{
result.Add((true, e));
}
}
//Evaluate restrictions
foreach (var r in availableclasses.Where(cls => cls.IsRestrictionClass()))
{
if (!membersCache.ContainsKey(r.PatternMemberID))
{
membersCache.Add(r.PatternMemberID, this.Ontology.GetMembersOfRestriction((RDFOntologyRestriction)r));
}
if (membersCache[r.PatternMemberID].Facts.ContainsKey(this.OntologyFact.PatternMemberID))
{
result.Add((true, r));
}
}
//Evaluate simple classes
foreach (var c in availableclasses.Where(cls => cls.IsSimpleClass()))
{
if (!membersCache.ContainsKey(c.PatternMemberID))
{
membersCache.Add(c.PatternMemberID, this.Ontology.GetMembersOfClass(c));
}
if (membersCache[c.PatternMemberID].Facts.ContainsKey(this.OntologyFact.PatternMemberID))
{
result.Add((true, c));
}
}
//Evaluate composite classes
foreach (var c in availableclasses.Where(cls => cls.IsCompositeClass()))
{
if (!membersCache.ContainsKey(c.PatternMemberID))
{
membersCache.Add(c.PatternMemberID, this.Ontology.GetMembersOfComposite(c, membersCache));
}
if (membersCache[c.PatternMemberID].Facts.ContainsKey(this.OntologyFact.PatternMemberID))
{
result.Add((true, c));
}
}
}
return(result);
}
