/// <summary>
/// Adds the "ontologyFact -> rdf:type -> ontologyClass" relation to the data.
/// </summary>
public RDFOntologyData AddClassTypeRelation(RDFOntologyFact ontologyFact, RDFOntologyClass ontologyClass)
{
if (ontologyFact != null && ontologyClass != null)
{
//Enforce preliminary check on usage of BASE classes
if (!RDFOntologyChecker.CheckReservedClass(ontologyClass))
{
//Enforce taxonomy checks before adding the ClassType relation
if (RDFOntologyChecker.CheckClassTypeCompatibility(ontologyClass))
{
this.Relations.ClassType.AddEntry(new RDFOntologyTaxonomyEntry(ontologyFact, RDFVocabulary.RDF.TYPE.ToRDFOntologyObjectProperty(), ontologyClass));
}
else
{
//Raise warning event to inform the user: ClassType relation cannot be added to the data because only plain classes can be explicitly assigned as class types of facts
RDFSemanticsEvents.RaiseSemanticsWarning(String.Format("ClassType relation between fact '{0}' and class '{1}' cannot be added to the data because only plain classes can be explicitly assigned as class types of facts.", ontologyFact, ontologyClass));
}
}
else
{
//Raise warning event to inform the user: ClassType relation cannot be added to the data because usage of BASE reserved classes compromises the taxonomy consistency
RDFSemanticsEvents.RaiseSemanticsWarning(String.Format("ClassType relation between fact '{0}' and class '{1}' cannot be added to the data because because usage of BASE reserved classes compromises the taxonomy consistency.", ontologyFact, ontologyClass));
}
}
return(this);
}
/// <summary>
/// Checks if the given class can be assigned as classtype of facts
/// </summary>
internal static Boolean CheckClassTypeCompatibility(RDFOntologyClass ontologyClass)
{
return(!ontologyClass.IsRestrictionClass() &&
!ontologyClass.IsCompositeClass() &&
!ontologyClass.IsEnumerateClass() &&
!ontologyClass.IsDataRangeClass());
}
/// <summary>
/// Sets the range of this ontology property to the given ontology class
/// </summary>
public RDFOntologyProperty SetRange(RDFOntologyClass rangeClass)
{
if (!this.IsAnnotationProperty())
{
this.Range = rangeClass;
}
return(this);
}
/// <summary>
/// Sets the domain of this ontology property to the given ontology class
/// </summary>
public RDFOntologyProperty SetDomain(RDFOntologyClass domainClass)
{
if (!this.IsAnnotationProperty())
{
this.Domain = domainClass;
}
return(this);
}
/// <summary>
/// Removes the "ontologyFact -> rdf:type -> ontologyClass" relation from the data
/// </summary>
public RDFOntologyData RemoveClassTypeRelation(RDFOntologyFact ontologyFact, RDFOntologyClass ontologyClass)
{
if (ontologyFact != null && ontologyClass != null)
{
this.Relations.ClassType.RemoveEntry(new RDFOntologyTaxonomyEntry(ontologyFact, RDFVocabulary.RDF.TYPE.ToRDFOntologyObjectProperty(), ontologyClass));
}
return(this);
}
/// <summary>
/// Checks if the given aclass can be set disjointwith the given bclass
/// </summary>
internal static Boolean CheckDisjointWithCompatibility(RDFOntologyClassModel classModel,
RDFOntologyClass aClass,
RDFOntologyClass bClass)
{
return(!classModel.CheckIsSubClassOf(aClass, bClass) &&
!classModel.CheckIsSuperClassOf(aClass, bClass) &&
!classModel.CheckIsEquivalentClassOf(aClass, bClass));
}
/// <summary>
/// Checks if the given childclass can be set subclassof the given motherclass
/// </summary>
internal static Boolean CheckSubClassOfCompatibility(RDFOntologyClassModel classModel,
RDFOntologyClass childClass,
RDFOntologyClass motherClass)
{
return(!classModel.CheckIsSubClassOf(motherClass, childClass) &&
!classModel.CheckIsEquivalentClassOf(motherClass, childClass) &&
!classModel.CheckIsDisjointClassWith(motherClass, childClass));
}
/// <summary>
/// Default-ctor to build an ontology complement class of the given class and with the given name
/// </summary>
public RDFOntologyComplementClass(RDFResource className, RDFOntologyClass complementOf) : base(className)
{
if (complementOf != null)
{
this.ComplementOf = complementOf;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyComplementClass because given \"complementOf\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an "owl:AllValuesFrom" ontology restriction with the given name on the given property and the given fromClass
/// </summary>
public RDFOntologyAllValuesFromRestriction(RDFResource restrictionName,
RDFOntologyProperty onProperty,
RDFOntologyClass fromClass) : base(restrictionName, onProperty)
{
if (fromClass != null)
{
this.FromClass = fromClass;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyAllValuesFromRestriction because given \"fromClass\" parameter is null.");
}
}
/// <summary>
/// Builds a class model lens for the given class on the given ontology
/// </summary>
public RDFOntologyClassModelLens(RDFOntologyClass ontologyClass, RDFOntology ontology)
{
if (ontologyClass != null)
{
if (ontology != null)
{
this.OntologyClass = ontologyClass;
this.Ontology = ontology.UnionWith(RDFBASEOntology.Instance);
}
else
{
throw new RDFSemanticsException("Cannot create class model lens because given \"ontology\" parameter is null");
}
}
else
{
throw new RDFSemanticsException("Cannot create class model lens because given \"ontologyClass\" parameter is null");
}
}
/// <summary>
/// Default-ctor to build an ontology qualified cardinality restriction with the given name on the given property and given class
/// </summary>
public RDFOntologyQualifiedCardinalityRestriction(RDFResource restrictionName,
RDFOntologyProperty onProperty,
RDFOntologyClass onClass,
int minQualifiedCardinality,
int maxQualifiedCardinality) : base(restrictionName, onProperty)
{
//OnClass
if (onClass != null)
{
this.OnClass = onClass;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyQualifiedCardinalityRestriction because given \"onClass\" parameter is null.");
}
//MinQualifiedCardinality
if (minQualifiedCardinality > 0)
{
if (maxQualifiedCardinality > 0)
{
if (minQualifiedCardinality <= maxQualifiedCardinality)
{
this.MinQualifiedCardinality = minQualifiedCardinality;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyQualifiedCardinalityRestriction because given \"minQualifiedCardinality\" parameter (" + minQualifiedCardinality + ") must be less or equal than given \"maxQualifiedCardinality\" parameter (" + maxQualifiedCardinality + ")");
}
}
else
{
this.MinQualifiedCardinality = minQualifiedCardinality;
}
}
//MaxQualifiedCardinality
if (maxQualifiedCardinality > 0)
{
if (minQualifiedCardinality > 0)
{
if (maxQualifiedCardinality >= minQualifiedCardinality)
{
this.MaxQualifiedCardinality = maxQualifiedCardinality;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyQualifiedCardinalityRestriction because given \"maxQualifiedCardinality\" parameter (" + maxQualifiedCardinality + ") must be greater or equal than given \"minQualifiedCardinality\" parameter (" + minQualifiedCardinality + ")");
}
}
else
{
this.MaxQualifiedCardinality = maxQualifiedCardinality;
}
}
if (this.MinQualifiedCardinality == 0 && this.MaxQualifiedCardinality == 0)
{
throw new RDFSemanticsException("Cannot create RDFOntologyQualifiedCardinalityRestriction because at least one of the given \"minQualifiedCardinality\" and \"maxQualifiedCardinality\" parameters must be greater than 0.");
}
}
/// <summary>
/// Checks if the given class is a reserved BASE ontology class
/// </summary>
internal static Boolean CheckReservedClass(RDFOntologyClass ontClass)
{
return(RDFBASEOntology.Instance.Model.ClassModel.Classes.ContainsKey(ontClass.PatternMemberID));
}
