/// <summary>
/// Default-ctor to build an "owl:HasValue" ontology restriction with the given name on the given property and the given required value
/// </summary>
public RDFOntologyHasValueRestriction(RDFResource restrictionName, RDFOntologyProperty onProperty, RDFOntologyLiteral requiredValue): base(restrictionName, onProperty) {
if (requiredValue != null) {
this.RequiredValue = requiredValue;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyHasValueRestriction because given \"requiredValue\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an ontology value restriction on the given property and requiring the given fact
/// </summary>
public RDFOntologyHasValueRestriction(RDFOntologyProperty onProperty, RDFOntologyFact requiredFact): base(onProperty) {
if (requiredFact != null) {
this.RequiredFact = requiredFact;
}
else {
throw new RDFSemanticsException("Cannot create ontology restriction because given \"requiredFact\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an "owl:SomeValuesFrom" ontology restriction with the given name on the given property and the given fromClass
/// </summary>
public RDFOntologySomeValuesFromRestriction(RDFResource restrictionName, RDFOntologyProperty onProperty, RDFOntologyClass fromClass): base(restrictionName, onProperty) {
if (fromClass != null) {
this.FromClass = fromClass;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologySomeValuesFromRestriction because given \"fromClass\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an ontology "ValuesFrom" restriction of the given category on the given property
/// </summary>
public RDFOntologyValuesFromRestriction(RDFOntologyProperty onProperty, RDFSemanticsEnums.RDFOntologyValuesFromRestrictionCategory restrictionCategory, RDFOntologyClass fromClass): base(onProperty) {
if (fromClass != null) {
this.FromClass = fromClass;
this.Category = restrictionCategory;
}
else {
throw new RDFSemanticsException("Cannot create ontology restriction because given \"fromClass\" 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>
/// Default-ctor to build an "owl:HasValue" ontology restriction with the given name on the given property and the given required value
/// </summary>
public RDFOntologyHasValueRestriction(RDFResource restrictionName, RDFOntologyProperty onProperty, RDFOntologyLiteral requiredValue) : base(restrictionName, onProperty)
{
if (requiredValue != null)
{
this.RequiredValue = requiredValue;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyHasValueRestriction because given \"requiredValue\" parameter is null.");
}
}
/// <summary>
/// Enlists the equivalentProperties of the given property within the given property model
/// </summary>
public static RDFOntologyPropertyModel EnlistEquivalentPropertiesOf(RDFOntologyProperty ontProperty,
RDFOntologyPropertyModel propertyModel)
{
var result = new RDFOntologyPropertyModel();
if (ontProperty != null && propertyModel != null)
{
result = RDFSemanticsUtilities.EnlistEquivalentPropertiesOf_Core(ontProperty, propertyModel, null)
.RemoveProperty(ontProperty); //Safety deletion
}
return(result);
}
/// <summary>
/// Default-ctor to build an ontology cardinality restriction with the given name on the given property
/// </summary>
public RDFOntologyCardinalityRestriction(RDFResource restrictionName,
RDFOntologyProperty onProperty,
Int32 minCardinality,
Int32 maxCardinality) : base(restrictionName, onProperty)
{
//MinCardinality
if (minCardinality > 0)
{
if (maxCardinality > 0)
{
if (minCardinality <= maxCardinality)
{
this.MinCardinality = minCardinality;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because given \"minCardinality\" parameter (" + minCardinality + ") must be less or equal than given \"maxCardinality\" parameter (" + maxCardinality + ")");
}
}
else
{
this.MinCardinality = minCardinality;
}
}
//MaxCardinality
if (maxCardinality > 0)
{
if (minCardinality > 0)
{
if (maxCardinality >= minCardinality)
{
this.MaxCardinality = maxCardinality;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because given \"maxCardinality\" parameter (" + maxCardinality + ") must be greater or equal than given \"minCardinality\" parameter (" + minCardinality + ")");
}
}
else
{
this.MaxCardinality = maxCardinality;
}
}
if (this.MinCardinality == 0 && this.MaxCardinality == 0)
{
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because at least one of the given \"minCardinality\" and \"maxCardinality\" parameters must be greater than 0.");
}
}
/// <summary>
/// Removes the "ontology -> ontologyProperty -> ontologyResource" relation from the ontology
/// If the property is an annotation property, it redirects to the "RemoveCustomAnnotation" method
/// </summary>
public RDFOntology RemoveCustomRelation(RDFOntologyProperty ontologyProperty,
RDFOntologyResource ontologyResource)
{
if (ontologyProperty != null && ontologyResource != null)
{
if (ontologyProperty.IsAnnotationProperty())
{
this.RemoveCustomAnnotation((RDFOntologyAnnotationProperty)ontologyProperty, ontologyResource);
}
else
{
this.Relations.CustomRelations.RemoveEntry(new RDFOntologyTaxonomyEntry(this, ontologyProperty, ontologyResource));
}
}
return(this);
}
/// <summary>
/// Default-ctor to build an ontology restriction with the given name on the given ontology property
/// </summary>
internal RDFOntologyRestriction (RDFResource restrictionName, RDFOntologyProperty onProperty): base(restrictionName) {
if (onProperty != null) {
//AnnotationProperty cannot be restricted
if (!onProperty.IsAnnotationProperty()) {
this.OnProperty = onProperty;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyRestriction because given \"onProperty\" parameter (" + onProperty + ") is an annotation property.");
}
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyRestriction because given \"onProperty\" parameter is null.");
}
}
/// <summary>
/// Enlists the range classes of the given property within the given ontology class model
/// </summary>
public static RDFOntologyClassModel EnlistRangeClassesOf(RDFOntologyProperty ontProperty,
RDFOntologyClassModel classModel)
{
var result = new RDFOntologyClassModel();
if (ontProperty != null && classModel != null)
{
if (ontProperty.Range != null)
{
result = EnlistSubClassesOf(ontProperty.Range, classModel)
.UnionWith(EnlistEquivalentClassesOf(ontProperty.Range, classModel))
.AddClass(ontProperty.Range);
}
}
return(result);
}
/// <summary>
/// Default-ctor to build an ontology restriction on the given ontology property
/// </summary>
internal RDFOntologyRestriction (RDFOntologyProperty onProperty): base(new RDFResource()) {
if (onProperty != null) {
//Cannot use annotation properties for ontology restrictions
if (!onProperty.IsAnnotationProperty()) {
this.OnProperty = onProperty;
}
else {
throw new RDFSemanticsException("Cannot create ontology restriction because given \"onProperty\" parameter represents an annotation property.");
}
}
else {
throw new RDFSemanticsException("Cannot create ontology restriction because given \"onProperty\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an ontology cardinality restriction on the given property
/// </summary>
public RDFOntologyCardinalityRestriction(RDFOntologyProperty onProperty, Int32 minCardinality, Int32 maxCardinality): base(onProperty) {
//Cardinality restrictions are not allowed on transitive properties (OWL-DL constraint)
if (onProperty.IsObjectProperty()) {
if (((RDFOntologyObjectProperty)onProperty).Transitive) {
throw new RDFSemanticsException("Cannot create cardinality restriction because given \"onProperty\" parameter is a transitive property.");
}
}
//Manage MinCardinality
if (minCardinality > 0) {
if (maxCardinality > 0) {
if (minCardinality <= maxCardinality) {
this.MinCardinality = minCardinality;
}
else {
throw new RDFSemanticsException("Cannot create cardinality restriction because given \"minCardinality\" parameter must be less or equal than \"maxCardinality\" parameter.");
}
}
else {
this.MinCardinality = minCardinality;
}
}
//Manage MaxCardinality
if (maxCardinality > 0) {
if (minCardinality > 0) {
if (maxCardinality >= minCardinality) {
this.MaxCardinality = maxCardinality;
}
else {
throw new RDFSemanticsException("Cannot create cardinality restriction because given \"maxCardinality\" parameter must be greater or equal than \"minCardinality\" parameter.");
}
}
else {
this.MaxCardinality = maxCardinality;
}
}
//Manage corner case, throwing exception
if (this.MinCardinality == 0 && this.MaxCardinality == 0) {
throw new RDFSemanticsException("Cannot create cardinality restriction because at least one of the given \"minCardinality\" and \"maxCardinality\" parameters must be greater than 0.");
}
}
/// <summary>
/// Enlists the super properties of the given property within the given property model
/// </summary>
public static RDFOntologyPropertyModel EnlistSuperPropertiesOf(RDFOntologyProperty ontProperty,
RDFOntologyPropertyModel propertyModel)
{
var result = new RDFOntologyPropertyModel();
if (ontProperty != null && propertyModel != null)
{
//Step 1: Reason on the given property
result = RDFSemanticsUtilities.EnlistSuperPropertiesOf_Core(ontProperty, propertyModel);
//Step 2: Reason on the equivalent properties
foreach (var ep in EnlistEquivalentPropertiesOf(ontProperty, propertyModel))
{
result = result.UnionWith(RDFSemanticsUtilities.EnlistSuperPropertiesOf_Core(ep, propertyModel));
}
}
return(result);
}
/// <summary>
/// Default-ctor to build an ontology restriction with the given name on the given ontology property
/// </summary>
internal RDFOntologyRestriction(RDFResource restrictionName, RDFOntologyProperty onProperty) : base(restrictionName)
{
if (onProperty != null)
{
//AnnotationProperty cannot be restricted
if (!onProperty.IsAnnotationProperty())
{
this.OnProperty = onProperty;
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyRestriction because given \"onProperty\" parameter (" + onProperty + ") is an annotation property.");
}
}
else
{
throw new RDFSemanticsException("Cannot create RDFOntologyRestriction because given \"onProperty\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an ontology cardinality restriction with the given name on the given property
/// </summary>
public RDFOntologyCardinalityRestriction(RDFResource restrictionName, RDFOntologyProperty onProperty, Int32 minCardinality, Int32 maxCardinality): base(restrictionName, onProperty) {
//MinCardinality
if (minCardinality > 0) {
if (maxCardinality > 0) {
if (minCardinality <= maxCardinality) {
this.MinCardinality = minCardinality;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because given \"minCardinality\" parameter (" + minCardinality + ") must be less or equal than given \"maxCardinality\" parameter (" + maxCardinality + ")");
}
}
else {
this.MinCardinality = minCardinality;
}
}
//MaxCardinality
if (maxCardinality > 0) {
if (minCardinality > 0) {
if (maxCardinality >= minCardinality) {
this.MaxCardinality = maxCardinality;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because given \"maxCardinality\" parameter (" + maxCardinality + ") must be greater or equal than given \"minCardinality\" parameter (" + minCardinality + ")");
}
}
else {
this.MaxCardinality = maxCardinality;
}
}
if (this.MinCardinality == 0 && this.MaxCardinality == 0) {
throw new RDFSemanticsException("Cannot create RDFOntologyCardinalityRestriction because at least one of the given \"minCardinality\" and \"maxCardinality\" parameters must be greater than 0.");
}
}
/// <summary>
/// Checks if the given ontology class is range of the given ontology property within the given ontology class model
/// </summary>
public static Boolean IsRangeClassOf(RDFOntologyClass rangeClass,
RDFOntologyProperty ontProperty,
RDFOntologyClassModel classModel)
{
return(rangeClass != null && ontProperty != null && classModel != null ? EnlistRangeClassesOf(ontProperty, classModel).Classes.ContainsKey(rangeClass.PatternMemberID) : false);
}
/// <summary>
/// Subsumes the "rdfs:subPropertyOf" taxonomy to discover direct and indirect superProperties of the given property
/// </summary>
internal static RDFOntologyPropertyModel EnlistSuperPropertiesOf(RDFOntologyProperty ontProperty, RDFOntologyPropertyModel propertyModel) {
var result = new RDFOntologyPropertyModel();
// Transitivity of "rdfs:subPropertyOf" taxonomy: ((A SUPERPROPERTYOF B) && (B SUPERPROPERTYOF C)) => (A SUPERPROPERTYOF C)
foreach(var sp in propertyModel.Relations.SubPropertyOf.SelectEntriesBySubject(ontProperty)) {
result.AddProperty((RDFOntologyProperty)sp.TaxonomyObject);
result = result.UnionWith(RDFSemanticsUtilities.EnlistSuperPropertiesOf((RDFOntologyProperty)sp.TaxonomyObject, propertyModel));
}
return result;
}
internal static RDFOntologyPropertyModel EnlistSuperPropertiesOf_Core(RDFOntologyProperty ontProperty, RDFOntologyPropertyModel propertyModel) {
var result1 = new RDFOntologyPropertyModel();
var result2 = new RDFOntologyPropertyModel();
// Step 1: Direct subsumption of "rdfs:subPropertyOf" taxonomy
result1 = RDFSemanticsUtilities.EnlistSuperPropertiesOf(ontProperty, propertyModel);
// Step 2: Enlist equivalent properties of subproperties
result2 = result2.UnionWith(result1);
foreach(var sp in result1) {
result2 = result2.UnionWith(RDFOntologyReasoningHelper.EnlistEquivalentPropertiesOf(sp, propertyModel)
.UnionWith(RDFOntologyReasoningHelper.EnlistSuperPropertiesOf(sp, propertyModel)));
}
return result2;
}
/// <summary>
/// Enlists the super properties of the given property within the given property model
/// </summary>
public static RDFOntologyPropertyModel EnlistSuperPropertiesOf(RDFOntologyProperty ontProperty, RDFOntologyPropertyModel propertyModel) {
var result = new RDFOntologyPropertyModel();
if(ontProperty != null && propertyModel != null) {
//Step 1: Reason on the given property
result = RDFSemanticsUtilities.EnlistSuperPropertiesOf_Core(ontProperty, propertyModel);
//Step 2: Reason on the equivalent properties of the given property
foreach(var ep in RDFOntologyReasoningHelper.EnlistEquivalentPropertiesOf(ontProperty, propertyModel)) {
result = result.UnionWith(RDFSemanticsUtilities.EnlistSuperPropertiesOf_Core(ep, propertyModel));
}
}
return result;
}
/// <summary>
/// Default-ctor to build an ontology attribute with the given property and given value
/// </summary>
internal RDFOntologyAttribute(RDFOntologyProperty attrProperty, RDFOntologyFact attrValue) {
if (attrProperty != null) {
if (attrValue != null) {
this.AttributeProperty = attrProperty;
this.AttributeValue = attrValue;
this.AttributeID = RDFModelUtilities.CreateHash(this.ToString());
}
else {
throw new RDFSemanticsException("Cannot create ontology attribute because given \"attrValue\" parameter is null.");
}
}
else {
throw new RDFSemanticsException("Cannot create ontology attribute because given \"attrProperty\" parameter is null.");
}
}
/// <summary>
/// Checks if the given property is a reserved BASE ontology property
/// </summary>
internal static Boolean CheckReservedProperty(RDFOntologyProperty ontProperty)
{
return(RDFBASEOntology.Instance.Model.PropertyModel.Properties.ContainsKey(ontProperty.PatternMemberID));
}
/// <summary>
/// Checks if the given ontology class is range of the given ontology property within the given ontology class model
/// </summary>
public static Boolean IsRangeClassOf(RDFOntologyClass rangeClass, RDFOntologyProperty ontProperty, RDFOntologyClassModel classModel) {
return (rangeClass != null && ontProperty != null && classModel != null ? RDFOntologyReasoningHelper.EnlistRangeClassesOf(ontProperty, classModel).Classes.ContainsKey(rangeClass.PatternMemberID) : false);
}
/// <summary>
/// Removes the given ontology attribute from the attributes of this
/// </summary>
public RDFOntologyFact RemoveOntologyAttribute(RDFOntologyProperty attrProperty, RDFOntologyFact attrValue) {
if (attrProperty != null && attrValue != null) {
var attr = new RDFOntologyAttribute(attrProperty, attrValue);
if (this.OntologyAttributes.ContainsKey(attr.AttributeID)) {
this.OntologyAttributes.Remove(attr.AttributeID);
}
}
return this;
}
/// <summary>
/// Enlists the equivalentProperties of the given property within the given property model
/// </summary>
public static RDFOntologyPropertyModel EnlistEquivalentPropertiesOf(RDFOntologyProperty ontProperty, RDFOntologyPropertyModel propertyModel) {
var result = new RDFOntologyPropertyModel();
if (ontProperty != null && propertyModel != null) {
result = RDFSemanticsUtilities.EnlistEquivalentPropertiesOf_Core(ontProperty, propertyModel, null).RemoveProperty(ontProperty);
}
return result;
}
/// <summary>
/// Checks if the given aProperty is equivalentProperty of the given bProperty within the given property model
/// </summary>
public static Boolean IsEquivalentPropertyOf(RDFOntologyProperty aProperty, RDFOntologyProperty bProperty, RDFOntologyPropertyModel propertyModel) {
return (aProperty != null && bProperty != null && propertyModel != null ? RDFOntologyReasoningHelper.EnlistEquivalentPropertiesOf(aProperty, propertyModel).Properties.ContainsKey(bProperty.PatternMemberID) : false);
}
/// <summary>
/// Checks if the given aProperty is equivalentProperty of the given bProperty within the given property model
/// </summary>
public static Boolean IsEquivalentPropertyOf(RDFOntologyProperty aProperty,
RDFOntologyProperty bProperty,
RDFOntologyPropertyModel propertyModel)
{
return(aProperty != null && bProperty != null && propertyModel != null ? EnlistEquivalentPropertiesOf(aProperty, propertyModel).Properties.ContainsKey(bProperty.PatternMemberID) : false);
}
/// <summary>
/// Subsumes the "owl:equivalentProperty" taxonomy to discover direct and indirect equivalentProperties of the given property
/// </summary>
internal static RDFOntologyPropertyModel EnlistEquivalentPropertiesOf_Core(RDFOntologyProperty ontProperty,
RDFOntologyPropertyModel propertyModel,
Dictionary<Int64, RDFOntologyProperty> visitContext) {
var result = new RDFOntologyPropertyModel();
#region visitContext
if (visitContext == null) {
visitContext = new Dictionary<Int64, RDFOntologyProperty>() { { ontProperty.PatternMemberID, ontProperty } };
}
else {
if (!visitContext.ContainsKey(ontProperty.PatternMemberID)) {
visitContext.Add(ontProperty.PatternMemberID, ontProperty);
}
else {
return result;
}
}
#endregion
// Transitivity of "owl:equivalentProperty" taxonomy: ((A EQUIVALENTPROPERTY B) && (B EQUIVALENTPROPERTY C)) => (A EQUIVALENTPROPERTY C)
foreach (var ep in propertyModel.Relations.EquivalentProperty.SelectEntriesBySubject(ontProperty)) {
result.AddProperty((RDFOntologyProperty)ep.TaxonomyObject);
result = result.UnionWith(RDFSemanticsUtilities.EnlistEquivalentPropertiesOf_Core((RDFOntologyProperty)ep.TaxonomyObject, propertyModel, visitContext));
}
return result;
}
/// <summary>
/// Adds the given ontology attribute to the attributes of this
/// </summary>
public RDFOntologyFact AddOntologyAttribute(RDFOntologyProperty attrProperty, RDFOntologyFact attrValue) {
if (attrProperty != null && attrValue != null) {
//Attributes can only be assigned to resource ontology facts
if (this.IsObjectFact()) {
//Maintain disjointness between property model and reserved RDF/RDFS/OWL vocabularies
if ( (!attrProperty.ToString().StartsWith(RDFVocabulary.RDF.BASE_URI.ToString(), StringComparison.Ordinal)) &&
(!attrProperty.ToString().StartsWith(RDFVocabulary.RDFS.BASE_URI.ToString(), StringComparison.Ordinal)) &&
(!attrProperty.ToString().StartsWith(RDFVocabulary.OWL.BASE_URI.ToString(), StringComparison.Ordinal)) ) {
//Check consistence of property type against range fact type
if( (attrProperty.IsObjectProperty() && attrValue.IsObjectFact()) ||
(attrProperty.IsDatatypeProperty() && attrValue.IsLiteralFact())) {
var attr = new RDFOntologyAttribute(attrProperty, attrValue);
if (!this.OntologyAttributes.ContainsKey(attr.AttributeID)) {
this.OntologyAttributes.Add(attr.AttributeID, attr);
}
}
}
}
}
return this;
}
/// <summary>
/// Enlists the range classes of the given property within the given ontology class model
/// </summary>
public static RDFOntologyClassModel EnlistRangeClassesOf(RDFOntologyProperty ontProperty, RDFOntologyClassModel classModel) {
var result = new RDFOntologyClassModel();
if (ontProperty != null && classModel != null) {
if (ontProperty.Range != null) {
result = RDFOntologyReasoningHelper.EnlistSubClassesOf(ontProperty.Range, classModel)
.UnionWith(RDFOntologyReasoningHelper.EnlistEquivalentClassesOf(ontProperty.Range, classModel))
.AddClass(ontProperty.Range);
}
}
return result;
}