public static List LongestParentPathToOwlThing()

in OWL2DTDL/DotNetRdfExtensions.cs [202:237]
30 lines of code
6 McCabe index (conditional complexity)

        public static List<string> LongestParentPathToOwlThing(this OntologyClass oClass)
        {
            IUriNode rdfsSubClassOf = oClass.Graph.CreateUriNode(RDFS.subClassOf);
            IEnumerable<OntologyClass> directSuperClasses = oClass.DirectSuperClasses.Where(
                parentClass =>
                    parentClass.IsNamed() &&
                    !parentClass.IsDeprecated() &&
                    !Program.PropertyAssertionIsDeprecated(oClass.GetUriNode(), rdfsSubClassOf, parentClass.GetUriNode())
            );

            // If we have no superclass or one of our superclasses is OWL:Thing, then we have reached the top level; return
            if (directSuperClasses.Count() < 1 || directSuperClasses.Any(superClass => superClass.IsOwlThing()))
            {
                return new List<string>();
            }
            else
            {
                // Assume the first parent has the longest path; if not, it will be replaced in subsequent foreach
                OntologyClass longestParent = directSuperClasses.First();
                List<string> longestParentPath = longestParent.LongestParentPathToOwlThing();
                // Iterate through the other parents to see if any is longer
                foreach (OntologyClass possibleSuperClass in directSuperClasses.Skip(1))
                {
                    List<string> possibleSuperClassParents = possibleSuperClass.LongestParentPathToOwlThing();
                    if (possibleSuperClassParents.Count() > longestParentPath.Count())
                    {
                        longestParent = possibleSuperClass;
                        longestParentPath = possibleSuperClassParents;
                    }
                }

                // At this point shortestParentPath + shortestParent should together contain the shortest path to the root; return them
                longestParentPath.Add(longestParent.GetLocalName());
                return longestParentPath;
            }
        }