/// <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: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 "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 fact with the given name
/// </summary>
public RDFOntologyFact(RDFResource factName) {
if (factName != null) {
this.Value = factName;
this.PatternMemberID = factName.PatternMemberID;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyFact because given \"factName\" parameter is null.");
}
}
/// <summary>
/// Adds the given resource to the describe terms of the query
/// </summary>
public RDFDescribeQuery AddDescribeTerm(RDFResource describeTerm)
{
if (describeTerm != null) {
if (!this.DescribeTerms.Exists(dt => dt.Equals(describeTerm))) {
this.DescribeTerms.Add(describeTerm);
}
}
return this;
}
/// <summary>
/// Default-ctor to build an ontology class with the given name
/// </summary>
public RDFOntologyClass(RDFResource className) {
if (className != null) {
this.Value = className;
this.PatternMemberID = className.PatternMemberID;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyClass because given \"className\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build a class constraint with the given class
/// </summary>
public RDFClassConstraint(RDFResource classType) : base()
{
if (classType != null)
{
this.ClassType = classType;
}
else
{
throw new RDFModelException("Cannot create RDFClassConstraint because given \"classType\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build a disjoint constraint with the given predicate
/// </summary>
public RDFDisjointConstraint(RDFResource disjointPredicate) : base()
{
if (disjointPredicate != null)
{
this.DisjointPredicate = disjointPredicate;
}
else
{
throw new RDFModelException("Cannot create RDFDisjointConstraint because given \"disjointPredicate\" parameter is null.");
}
}
/// <summary>
/// Selects the triples indexed by the given object
/// </summary>
internal HashSet <long> SelectIndexByObject(RDFResource objectResource)
{
if (objectResource != null)
{
if (this.Objects.ContainsKey(objectResource.PatternMemberID))
{
return(this.Objects[objectResource.PatternMemberID]);
}
}
return(new HashSet <long>());
}
/// <summary>
/// Selects the triples indexed by the given predicate
/// </summary>
internal HashSet <long> SelectIndexByPredicate(RDFResource predicateResource)
{
if (predicateResource != null)
{
if (this.Predicates.ContainsKey(predicateResource.PatternMemberID))
{
return(this.Predicates[predicateResource.PatternMemberID]);
}
}
return(new HashSet <long>());
}
/// <summary>
/// Default-ctor to build a lessThan constraint with the given predicate
/// </summary>
public RDFLessThanConstraint(RDFResource lessThanPredicate) : base()
{
if (lessThanPredicate != null)
{
this.LessThanPredicate = lessThanPredicate;
}
else
{
throw new RDFModelException("Cannot create RDFLessThanConstraint because given \"lessThanPredicate\" parameter is null.");
}
}
/// <summary>
/// Selects the triples indexed by the given subject
/// </summary>
internal HashSet <Int64> SelectIndexBySubject(RDFResource subjectResource)
{
if (subjectResource != null)
{
if (this.Subjects.ContainsKey(subjectResource.PatternMemberID))
{
return(this.Subjects[subjectResource.PatternMemberID]);
}
}
return(new HashSet <Int64>());
}
/// <summary>
/// Default-ctor to build a property constraint with the given property shape identifier
/// </summary>
public RDFPropertyConstraint(RDFResource propertyShapeUri) : base()
{
if (propertyShapeUri != null)
{
this.PropertyShapeUri = propertyShapeUri;
}
else
{
throw new RDFModelException("Cannot create RDFPropertyConstraint because given \"propertyShapeUri\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build a not constraint with the given shape
/// </summary>
public RDFNotConstraint(RDFResource notShape) : base()
{
if (notShape != null)
{
this.NotShape = notShape;
}
else
{
throw new RDFModelException("Cannot create RDFNotConstraint because given \"notShape\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an equals constraint with the given predicate
/// </summary>
public RDFEqualsConstraint(RDFResource equalsPredicate) : base()
{
if (equalsPredicate != null)
{
this.EqualsPredicate = equalsPredicate;
}
else
{
throw new RDFModelException("Cannot create RDFEqualsConstraint because given \"equalsPredicate\" parameter is null.");
}
}
/// <summary>
/// Adds the given resource to the values of this constraint (if ItemType has been set to Resource)
/// </summary>
public RDFInConstraint AddValue(RDFResource resource)
{
if (this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
if (resource != null && !this.InValues.ContainsKey(resource.PatternMemberID))
{
this.InValues.Add(resource.PatternMemberID, resource);
}
}
return(this);
}
/// <summary>
/// Default-ctor to build a minInclusive constraint with the given resource value
/// </summary>
public RDFMinInclusiveConstraint(RDFResource value) : base()
{
if (value != null)
{
this.Value = value;
}
else
{
throw new RDFModelException("Cannot create RDFMinInclusiveConstraint because given \"value\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an empty ontology with the given name
/// </summary>
public RDFOntology(RDFResource ontologyName) {
if (ontologyName != null) {
this.Value = ontologyName;
this.PatternMemberID = ontologyName.PatternMemberID;
this.Model = new RDFOntologyModel();
this.Data = new RDFOntologyData();
this.Annotations = new RDFOntologyAnnotationsMetadata();
RDFSemanticsUtilities.InitializeOntology(this);
}
else {
throw new RDFSemanticsException("Cannot create RDFOntology because given \"ontologyName\" parameter is null.");
}
}
/// <summary>
/// Selects the triples indexed by the given object
/// </summary>
internal Dictionary <Int64, Object> SelectIndexByObject(RDFResource objectResource)
{
var result = new Dictionary <Int64, Object>();
if (objectResource != null)
{
if (this.Objects.ContainsKey(objectResource.PatternMemberID))
{
result = this.Objects[objectResource.PatternMemberID];
}
}
return(result);
}
/// <summary>
/// Selects the triples indexed by the given predicate
/// </summary>
internal Dictionary <Int64, Object> SelectIndexByPredicate(RDFResource predicateResource)
{
var result = new Dictionary <Int64, Object>();
if (predicateResource != null)
{
if (this.Predicates.ContainsKey(predicateResource.PatternMemberID))
{
result = this.Predicates[predicateResource.PatternMemberID];
}
}
return(result);
}
/// <summary>
/// Default-ctor to build an ontology fact from the given resource
/// </summary>
public RDFOntologyFact(RDFResource factName) {
if (factName != null) {
this.Value = factName;
this.PatternMemberID = factName.PatternMemberID;
this.ClassTypes = new Dictionary<Int64, RDFOntologyClass>();
this.SameAs = new Dictionary<Int64, RDFOntologyFact>();
this.DifferentFrom = new Dictionary<Int64, RDFOntologyFact>();
this.OntologyAttributes = new Dictionary<Int64, RDFOntologyAttribute>();
}
else {
throw new RDFSemanticsException("Cannot create ontology fact because given \"factName\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build a named property shape on the given property
/// </summary>
public RDFPropertyShape(RDFResource propertyShapeName, RDFResource path) : base(propertyShapeName)
{
if (path != null)
{
this.Path = path;
this.Descriptions = new List <RDFLiteral>();
this.Names = new List <RDFLiteral>();
}
else
{
throw new RDFModelException("Cannot create RDFPropertyShape because given \"path\" parameter is null.");
}
}
/// <summary>
/// Default-ctor to build an ontology property with the given non-blank name
/// </summary>
internal RDFOntologyProperty(RDFResource propertyName) {
if (propertyName != null) {
if (!propertyName.IsBlank) {
this.Value = propertyName;
this.PatternMemberID = propertyName.PatternMemberID;
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyProperty because given \"propertyName\" parameter is a blank resource.");
}
}
else {
throw new RDFSemanticsException("Cannot create RDFOntologyProperty because given \"propertyName\" parameter is null.");
}
}
/// <summary>
/// Removes the triples with the given resource as object
/// </summary>
public RDFGraph RemoveTriplesByObject(RDFResource objectResource)
{
if (objectResource != null)
{
foreach (RDFTriple triple in this.SelectTriplesByObject(objectResource))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
}
}
return(this);
}
/// <summary>
/// Removes the given item from the collection
/// </summary>
public RDFCollection RemoveItem(RDFResource item)
{
if (item != null && this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
//Remove item from collection
this.Items.RemoveAll(x => x.Equals(item));
//Update ReificationSubject (if collection has turned back into "rdf:Nil" configuration)
if (this.ItemsCount == 0)
{
this.ReificationSubject = RDFVocabulary.RDF.NIL;
}
}
return(this);
}
/// <summary>
/// Removes the triples with the given predicate
/// </summary>
public RDFGraph RemoveTriplesByPredicate(RDFResource predicateResource)
{
if (predicateResource != null)
{
foreach (RDFTriple triple in this.SelectTriplesByPredicate(predicateResource))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
}
}
return(this);
}
/// <summary>
/// Given an attribute representing a RDF collection, iterates on its constituent elements
/// to build its standard reification triples.
/// </summary>
internal static void ParseCollectionElements(Uri xmlBase, XmlNode predNode, RDFResource subj,
RDFResource pred, RDFGraph result)
{
//Attach the collection as the blank object of the current pred
RDFResource obj = new RDFResource();
result.AddTriple(new RDFTriple(subj, pred, obj));
//Iterate on the collection items to reify it
if (predNode.HasChildNodes)
{
IEnumerator elems = predNode.ChildNodes.GetEnumerator();
while (elems != null && elems.MoveNext())
{
XmlNode elem = (XmlNode)elems.Current;
//Try to get items as "rdf:about" attributes, or as "rdf:resource"
XmlAttribute elemUri =
(GetRdfAboutAttribute(elem) ??
GetRdfResourceAttribute(elem));
if (elemUri != null)
{
//Sanitize eventual blank node or relative value, depending on attribute found
elemUri.Value = ResolveRelativeNode(elemUri, xmlBase);
// obj -> rdf:type -> rdf:list
result.AddTriple(new RDFTriple(obj, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.LIST));
// obj -> rdf:first -> res
result.AddTriple(new RDFTriple(obj, RDFVocabulary.RDF.FIRST, new RDFResource(elemUri.Value)));
//Last element of a collection must give a triple to a "rdf:nil" object
RDFResource newObj;
if (elem != predNode.ChildNodes.Item(predNode.ChildNodes.Count - 1))
{
// obj -> rdf:rest -> newObj
newObj = new RDFResource();
}
else
{
// obj -> rdf:rest -> rdf:nil
newObj = RDFVocabulary.RDF.NIL;
}
result.AddTriple(new RDFTriple(obj, RDFVocabulary.RDF.REST, newObj));
obj = newObj;
}
}
}
}
/// <summary>
/// Removes the triples with the given predicate and literal
/// </summary>
public RDFGraph RemoveTriplesByPredicateLiteral(RDFResource predicateResource, RDFLiteral objectLiteral)
{
if (predicateResource != null && objectLiteral != null)
{
foreach (RDFTriple triple in this.SelectTriplesByPredicate(predicateResource)
.SelectTriplesByLiteral(objectLiteral))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
}
}
return(this);
}
/// <summary>
/// Default-ctor to build a validation result with the given properties
/// </summary>
internal RDFValidationResult(RDFResource sourceShape,
RDFResource sourceConstraintComponent,
RDFPatternMember focusNode,
RDFResource resultPath,
RDFPatternMember resultValue,
List <RDFLiteral> resultMessages,
RDFValidationEnums.RDFShapeSeverity severity = RDFValidationEnums.RDFShapeSeverity.Violation) : base()
{
this.SourceShape = sourceShape;
this.SourceConstraintComponent = sourceConstraintComponent;
this.FocusNode = focusNode;
this.ResultPath = resultPath;
this.ResultValue = resultValue;
this.ResultMessages = resultMessages ?? new List <RDFLiteral>();
this.Severity = severity;
}
/// <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>
/// Removes the triples with the given resource as object
/// </summary>
public RDFGraph RemoveTriplesByObject(RDFResource objectResource)
{
if (objectResource != null)
{
foreach (var triple in this.SelectTriplesByObject(objectResource))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
}
return(this);
}
/// <summary>
/// Gives the subj node extracted from the attribute list of the current element
/// </summary>
internal static RDFResource GetSubjectNode(XmlNode subjNode, Uri xmlBase, RDFGraph result)
{
RDFResource subj = null;
//If there are attributes, search them for the one representing the subj
if (subjNode.Attributes != null && subjNode.Attributes.Count > 0)
{
//We are interested in finding the "rdf:about" node for the subj
XmlAttribute rdfAbout = GetRdfAboutAttribute(subjNode);
if (rdfAbout != null)
{
//Attribute found, but we must check if it is "rdf:ID", "rdf:nodeID" or a relative Uri:
//in this case it must be resolved against the xmlBase namespace, or else it remains the same
String rdfAboutValue = ResolveRelativeNode(rdfAbout, xmlBase);
subj = new RDFResource(rdfAboutValue);
}
//If "rdf:about" attribute has been found for the subj, we must
//check if the node is not a standard "rdf:Description": this is
//the case we can directly build a triple with "rdf:type" pred
if (subj != null && !CheckIfRdfDescriptionNode(subjNode))
{
RDFResource obj = null;
if (subjNode.NamespaceURI == String.Empty)
{
obj = new RDFResource(xmlBase + subjNode.LocalName);
}
else
{
obj = new RDFResource(subjNode.NamespaceURI + subjNode.LocalName);
}
result.AddTriple(new RDFTriple(subj, RDFVocabulary.RDF.TYPE, obj));
}
}
//There are no attributes, so there's only one way we can handle this element:
//if it is a standard rdf:Description, it is a blank Subject
else
{
if (CheckIfRdfDescriptionNode(subjNode))
{
subj = new RDFResource();
}
}
return(subj);
}
/// <summary>
/// Removes the triples with the given resource as object
/// </summary>
public RDFGraph RemoveTriplesByObject(RDFResource objectResource)
{
if (objectResource != null)
{
var tripleFound = false;
foreach (var triple in this.SelectTriplesByObject(objectResource))
{
this.Triples.Remove(triple.TripleID);
tripleFound = true;
}
if (tripleFound)
{
RDFModelUtilities.RebuildGraph(this);
}
}
return(this);
}
/// <summary>
/// Removes the triples with the given (non-blank) predicate
/// </summary>
public RDFGraph RemoveTriplesByPredicate(RDFResource predicateResource)
{
if (predicateResource != null && !predicateResource.IsBlank)
{
var tripleFound = false;
foreach (var triple in this.SelectTriplesByPredicate(predicateResource))
{
this.Triples.Remove(triple.TripleID);
tripleFound = true;
}
if (tripleFound)
{
RDFModelUtilities.RebuildGraph(this);
}
}
return(this);
}
/// <summary>
/// Adds the given item to the collection
/// </summary>
public RDFCollection AddItem(RDFResource item)
{
if (item != null && this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
if (this.AcceptDuplicates || this.Items.Find(x => x.Equals(item)) == null)
{
//Add item to collection
this.Items.Add(item);
//Update ReificationSubject (if collection has left "rdf:Nil" configuration)
if (this.ItemsCount == 1)
{
this.ReificationSubject = this.InternalReificationSubject;
}
}
}
return(this);
}
/// <summary>
/// Removes the triples with the given predicate and literal
/// </summary>
public RDFGraph RemoveTriplesByPredicateLiteral(RDFResource predicateResource, RDFLiteral objectLiteral)
{
if (predicateResource != null && objectLiteral != null)
{
foreach (var triple in this.SelectTriplesByPredicate(predicateResource)
.SelectTriplesByLiteral(objectLiteral))
{
//Remove triple
this.Triples.Remove(triple.TripleID);
//Remove index
this.GraphIndex.RemoveIndex(triple);
//Raise event
RDFModelEvents.RaiseOnTripleRemoved(String.Format("Triple '{0}' has been removed from the Graph '{1}'.", triple, this));
}
}
return(this);
}
/// <summary>
/// Builds the reification graph of the collection
/// </summary>
public RDFGraph ReifyCollection()
{
RDFGraph reifColl = new RDFGraph();
RDFResource reifSubj = this.ReificationSubject;
int itemCount = 0;
//Collection can be reified only if it has at least one item
if (this.ItemsCount > 0)
{
foreach (object listEnum in this)
{
//Count the items to keep track of the last one, which will be connected to rdf:nil
itemCount++;
// Subject -> rdf:type -> rdf:List
reifColl.AddTriple(new RDFTriple(reifSubj, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.LIST));
// Subject -> rdf:first -> RDFCollection.ITEM[i]
if (this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
reifColl.AddTriple(new RDFTriple(reifSubj, RDFVocabulary.RDF.FIRST, (RDFResource)listEnum));
}
else
{
reifColl.AddTriple(new RDFTriple(reifSubj, RDFVocabulary.RDF.FIRST, (RDFLiteral)listEnum));
}
//Not the last one: Subject -> rdf:rest -> NEWBLANK
if (itemCount < this.ItemsCount)
{
RDFResource newSub = new RDFResource();
reifColl.AddTriple(new RDFTriple(reifSubj, RDFVocabulary.RDF.REST, newSub));
reifSubj = newSub;
}
//The last one: Subject -> rdf:rest -> rdf:nil
else
{
reifColl.AddTriple(new RDFTriple(reifSubj, RDFVocabulary.RDF.REST, RDFVocabulary.RDF.NIL));
}
}
}
return(reifColl);
}
/// <summary>
/// Parses the current quadruple of the data reader
/// </summary>
public static RDFQuadruple ParseQuadruple(IDataReader fetchedQuadruples) {
if (fetchedQuadruples != null) {
RDFContext qContext = new RDFContext(fetchedQuadruples["Context"].ToString());
RDFResource qSubject = new RDFResource(fetchedQuadruples["Subject"].ToString());
RDFResource qPredicate = new RDFResource(fetchedQuadruples["Predicate"].ToString());
//SPO-flavour quadruple
if (fetchedQuadruples["TripleFlavor"].ToString() == "1") {
RDFResource qObject = new RDFResource(fetchedQuadruples["Object"].ToString());
return new RDFQuadruple(qContext, qSubject, qPredicate, qObject);
}
//SPL-flavour quadruple
String literal = fetchedQuadruples["Object"].ToString();
//PlainLiteral
if (!literal.Contains("^^") || literal.EndsWith("^^") || RDFModelUtilities.GetUriFromString(literal.Substring(literal.LastIndexOf("^^", StringComparison.Ordinal) + 2)) == null) {
RDFPlainLiteral pLit = null;
if (literal.Contains("@")) {
if (!literal.EndsWith("@")) {
Int32 lastAmp = literal.LastIndexOf('@');
pLit = new RDFPlainLiteral(literal.Substring(0, lastAmp), literal.Substring(lastAmp + 1));
}
else {
pLit = new RDFPlainLiteral(literal);
}
}
else {
pLit = new RDFPlainLiteral(literal);
}
return new RDFQuadruple(qContext, qSubject, qPredicate, pLit);
}
//TypedLiteral
String tLitValue = literal.Substring(0, literal.LastIndexOf("^^", StringComparison.Ordinal));
String tLitDatatype = literal.Substring(literal.LastIndexOf("^^", StringComparison.Ordinal) + 2);
RDFDatatype dt = RDFModelUtilities.GetDatatypeFromString(tLitDatatype);
RDFTypedLiteral tLit = new RDFTypedLiteral(tLitValue, dt);
return new RDFQuadruple(qContext, qSubject, qPredicate, tLit);
}
throw new RDFStoreException("Cannot parse quadruple because given \"fetchedQuadruples\" parameter is null.");
}
/// <summary>
/// Builds the reification graph of the container:
/// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
/// Subject -> rdf:_N -> RDFContainer.ITEM(N)
/// </summary>
public RDFGraph ReifyContainer()
{
RDFGraph reifCont = new RDFGraph();
// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
switch (this.ContainerType)
{
case RDFModelEnums.RDFContainerTypes.Bag:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.BAG));
break;
case RDFModelEnums.RDFContainerTypes.Seq:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.SEQ));
break;
case RDFModelEnums.RDFContainerTypes.Alt:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.ALT));
break;
default:
throw new NotImplementedException();
break;
}
// Subject -> rdf:_N -> RDFContainer.ITEM(N)
Int32 index = 0;
foreach (Object item in this)
{
RDFResource ordPred = new RDFResource(RDFVocabulary.RDF.BASE_URI + "_" + (++index));
if (this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFResource)item));
}
else
{
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFLiteral)item));
}
}
return(reifCont);
}
/// <summary>
/// Default-ctor to build a qualified value shape constraint with the given property shape identifier and min/max counters
/// </summary>
public RDFQualifiedValueShapeConstraint(RDFResource qualifiedValueShapeUri, int?qualifiedValueMinCount, int?qualifiedValueMaxCount) : base()
{
if (qualifiedValueShapeUri != null)
{
this.QualifiedValueShapeUri = qualifiedValueShapeUri;
if (qualifiedValueMinCount.HasValue)
{
this.QualifiedValueMinCount = qualifiedValueMinCount < 0 ? 0 : qualifiedValueMinCount;
}
if (qualifiedValueMaxCount.HasValue)
{
this.QualifiedValueMaxCount = qualifiedValueMaxCount < 0 ? 0 : qualifiedValueMaxCount;
}
}
else
{
throw new RDFModelException("Cannot create RDFQualifiedValueShapeConstraint because given \"qualifiedValueShapeUri\" parameter is null.");
}
}
/// <summary>
/// Builds the reification graph of the container:
/// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
/// Subject -> rdf:_N -> RDFContainer.ITEM(N)
/// </summary>
public RDFGraph ReifyContainer()
{
RDFGraph reifCont = new RDFGraph();
// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
switch (this.ContainerType)
{
case RDFModelEnums.RDFContainerTypes.Bag:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.BAG));
break;
case RDFModelEnums.RDFContainerTypes.Seq:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.SEQ));
break;
case RDFModelEnums.RDFContainerTypes.Alt:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.ALT));
break;
}
// Subject -> rdf:_N -> RDFContainer.ITEM(N)
int index = 0;
foreach (object item in this)
{
RDFResource ordPred = new RDFResource(string.Concat(RDFVocabulary.RDF.BASE_URI, "_", (++index).ToString()));
if (this.ItemType == RDFModelEnums.RDFItemTypes.Resource)
{
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFResource)item));
}
else
{
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFLiteral)item));
}
}
return(reifCont);
}
/// <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>
/// Selects the quadruples indexed by the given predicate
/// </summary>
internal HashSet<Int64> SelectIndexByPredicate(RDFResource predicateResource)
{
if (predicateResource != null) {
if (this.Predicates.ContainsKey(predicateResource.PatternMemberID)) {
return this.Predicates[predicateResource.PatternMemberID];
}
}
return new HashSet<Int64>();
}
/// <summary>
/// Default-ctor to build an empty ontology intersection class with the given className
/// </summary>
public RDFOntologyIntersectionClass(RDFResource className): base(className) { }
/// <summary>
/// Default-ctor to build an empty ontology union class with the given name
/// </summary>
public RDFOntologyUnionClass(RDFResource className): base(className) { }
/// <summary>
/// Selects the triples indexed by the given object
/// </summary>
internal Dictionary<Int64, Object> SelectIndexByObject(RDFResource objectResource) {
var result = new Dictionary<Int64, Object>();
if (objectResource != null) {
if (this.Objects.ContainsKey(objectResource.PatternMemberID)) {
result = this.Objects[objectResource.PatternMemberID];
}
}
return result;
}
/// <summary>
/// Selects the triples indexed by the given predicate
/// </summary>
internal Dictionary<Int64, Object> SelectIndexByPredicate(RDFResource predicateResource) {
var result = new Dictionary<Int64, Object>();
if (predicateResource != null) {
if (this.Predicates.ContainsKey(predicateResource.PatternMemberID)) {
result = this.Predicates[predicateResource.PatternMemberID];
}
}
return result;
}
/// <summary>
/// Default-ctor to build an ontology datatype property from the given non-blank resource
/// </summary>
public RDFOntologyDatatypeProperty(RDFResource propertyName): base(propertyName) { }
/// <summary>
/// Gets a memory store containing quadruples satisfying the given pattern
/// </summary>
internal override RDFMemoryStore SelectQuadruples(RDFContext ctx,
RDFResource subj,
RDFResource pred,
RDFResource obj,
RDFLiteral lit) {
RDFMemoryStore result = new RDFMemoryStore();
MySqlCommand command = null;
//Intersect the filters
if (ctx != null) {
if (subj != null) {
if (pred != null) {
if (obj != null) {
//C->S->P->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//C->S->P->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//C->S->P->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID AND PredicateID = @PREDID", this.Connection);
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
}
}
}
else {
if (obj != null) {
//C->S->->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//C->S->->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//C->S->->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND SubjectID = @SUBJID", this.Connection);
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
}
}
}
}
else {
if (pred != null) {
if (obj != null) {
//C->->P->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//C->->P->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//C->->P->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND PredicateID = @PREDID", this.Connection);
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
}
}
}
else {
if (obj != null) {
//C->->->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//C->->->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//C->->->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ContextID = @CTXID", this.Connection);
command.Parameters.Add(new MySqlParameter("CTXID", MySqlDbType.Int64));
command.Parameters["CTXID"].Value = ctx.PatternMemberID;
}
}
}
}
}
else {
if (subj != null) {
if (pred != null) {
if (obj != null) {
//->S->P->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//->S->P->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID AND PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//->S->P->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID AND PredicateID = @PREDID", this.Connection);
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
}
}
}
else {
if (obj != null) {
//->S->->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//->S->->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//->S->->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE SubjectID = @SUBJID", this.Connection);
command.Parameters.Add(new MySqlParameter("SUBJID", MySqlDbType.Int64));
command.Parameters["SUBJID"].Value = subj.PatternMemberID;
}
}
}
}
else {
if (pred != null) {
if (obj != null) {
//->->P->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//->->P->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE PredicateID = @PREDID AND ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["PREDID"].Value = pred.PatternMemberID;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//->->P->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE PredicateID = @PREDID", this.Connection);
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
command.Parameters["PREDID"].Value = pred.PatternMemberID;
}
}
}
else {
if (obj != null) {
//->->->O
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
command.Parameters["OBJID"].Value = obj.PatternMemberID;
}
else {
if (lit != null) {
//->->->L
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples WHERE ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPL;
command.Parameters["OBJID"].Value = lit.PatternMemberID;
}
else {
//->->->
command = new MySqlCommand("SELECT TripleFlavor, Context, Subject, Predicate, Object FROM Quadruples", this.Connection);
}
}
}
}
}
//Prepare and execute command
try {
//Open connection
this.Connection.Open();
//Prepare command
command.Prepare();
command.CommandTimeout = 120;
//Execute command
using (var quadruples = command.ExecuteReader()) {
if(quadruples.HasRows) {
while (quadruples.Read()) {
result.AddQuadruple(RDFStoreUtilities.ParseQuadruple(quadruples));
}
}
}
//Close connection
this.Connection.Close();
}
catch (Exception ex) {
//Close connection
this.Connection.Close();
//Propagate exception
throw new RDFStoreException("Cannot read data from MySQL store because: " + ex.Message, ex);
}
return result;
}
/// <summary>
/// Removes the quadruples with the given resource as object
/// </summary>
public override RDFStore RemoveQuadruplesByObject(RDFResource objectResource) {
if (objectResource != null) {
try {
//Modify command
this.Commands["DELETE"].CommandText = "DELETE FROM main.Quadruples WHERE TripleFlavor = 1 AND ObjectID = @OBJID";
this.Commands["DELETE"].Parameters.Clear();
//Open connection
this.Connection.Open();
//Open transaction
this.Commands["DELETE"].Transaction = this.Commands["DELETE"].Connection.BeginTransaction();
//Prepare command
this.Commands["DELETE"].Prepare();
//Valorize parameters
this.Commands["DELETE"].Parameters.Add(new SQLiteParameter("OBJID", DbType.Int64));
this.Commands["DELETE"].Parameters["OBJID"].Value = objectResource.PatternMemberID;
//Execute command
this.Commands["DELETE"].ExecuteNonQuery();
//Close transaction
this.Commands["DELETE"].Transaction.Commit();
//Close connection
this.Connection.Close();
//Restore command
this.Commands["DELETE"].CommandText = "DELETE FROM main.Quadruples WHERE QuadrupleID = @QID";
this.Commands["DELETE"].Parameters.Clear();
this.Commands["DELETE"].Parameters.Add(new SQLiteParameter("QID", DbType.Int64));
}
catch (Exception ex) {
//Close transaction
this.Commands["DELETE"].Transaction.Rollback();
//Close connection
this.Connection.Close();
//Restore command
this.Commands["DELETE"].CommandText = "DELETE FROM main.Quadruples WHERE QuadrupleID = @QID";
this.Commands["DELETE"].Parameters.Clear();
this.Commands["DELETE"].Parameters.Add(new SQLiteParameter("QID", DbType.Int64));
//Propagate exception
throw new RDFStoreException("Cannot delete data from SQLite store because: " + ex.Message);
}
}
return this;
}
/// <summary>
/// Selects the quadruples corresponding to the given pattern from the given store
/// </summary>
internal static List<RDFQuadruple> SelectQuadruples(RDFMemoryStore store,
RDFContext ctx,
RDFResource subj,
RDFResource pred,
RDFResource obj,
RDFLiteral lit) {
var matchCtx = new List<RDFQuadruple>();
var matchSubj = new List<RDFQuadruple>();
var matchPred = new List<RDFQuadruple>();
var matchObj = new List<RDFQuadruple>();
var matchLit = new List<RDFQuadruple>();
var matchResult = new List<RDFQuadruple>();
if (store != null) {
//Filter by Context
if (ctx != null) {
foreach (var q in store.StoreIndex.SelectIndexByContext(ctx).Keys) {
matchCtx.Add(store.Quadruples[q]);
}
}
//Filter by Subject
if (subj != null) {
foreach (var q in store.StoreIndex.SelectIndexBySubject(subj).Keys) {
matchSubj.Add(store.Quadruples[q]);
}
}
//Filter by Predicate
if (pred != null) {
foreach (var q in store.StoreIndex.SelectIndexByPredicate(pred).Keys) {
matchPred.Add(store.Quadruples[q]);
}
}
//Filter by Object
if (obj != null) {
foreach (var q in store.StoreIndex.SelectIndexByObject(obj).Keys) {
matchObj.Add(store.Quadruples[q]);
}
}
//Filter by Literal
if (lit != null) {
foreach (var q in store.StoreIndex.SelectIndexByLiteral(lit).Keys) {
matchLit.Add(store.Quadruples[q]);
}
}
//Intersect the filters
if (ctx != null) {
if (subj != null) {
if (pred != null) {
if (obj != null) {
//C->S->P->O
matchResult = matchCtx.Intersect(matchSubj)
.Intersect(matchPred)
.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//C->S->P->L
matchResult = matchCtx.Intersect(matchSubj)
.Intersect(matchPred)
.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//C->S->P->
matchResult = matchCtx.Intersect(matchSubj)
.Intersect(matchPred)
.ToList<RDFQuadruple>();
}
}
}
else {
if (obj != null) {
//C->S->->O
matchResult = matchCtx.Intersect(matchSubj)
.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//C->S->->L
matchResult = matchCtx.Intersect(matchSubj)
.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//C->S->->
matchResult = matchCtx.Intersect(matchSubj)
.ToList<RDFQuadruple>();
}
}
}
}
else {
if (pred != null) {
if (obj != null) {
//C->->P->O
matchResult = matchCtx.Intersect(matchPred)
.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//C->->P->L
matchResult = matchCtx.Intersect(matchPred)
.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//C->->P->
matchResult = matchCtx.Intersect(matchPred)
.ToList<RDFQuadruple>();
}
}
}
else {
if (obj != null) {
//C->->->O
matchResult = matchCtx.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//C->->->L
matchResult = matchCtx.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//C->->->
matchResult = matchCtx;
}
}
}
}
}
else {
if (subj != null) {
if (pred != null) {
if (obj != null) {
//->S->P->O
matchResult = matchSubj.Intersect(matchPred)
.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//->S->P->L
matchResult = matchSubj.Intersect(matchPred)
.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//->S->P->
matchResult = matchSubj.Intersect(matchPred)
.ToList<RDFQuadruple>();
}
}
}
else {
if (obj != null) {
//->S->->O
matchResult = matchSubj.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//->S->->L
matchResult = matchSubj.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//->S->->
matchResult = matchSubj;
}
}
}
}
else {
if (pred != null) {
if (obj != null) {
//->->P->O
matchResult = matchPred.Intersect(matchObj)
.ToList<RDFQuadruple>();
}
else {
if (lit != null) {
//->->P->L
matchResult = matchPred.Intersect(matchLit)
.ToList<RDFQuadruple>();
}
else {
//->->P->
matchResult = matchPred;
}
}
}
else {
if (obj != null) {
//->->->O
matchResult = matchObj;
}
else {
if (lit != null) {
//->->->L
matchResult = matchLit;
}
else {
//->->->
matchResult = store.Quadruples.Values.ToList<RDFQuadruple>();
}
}
}
}
}
}
return matchResult;
}
/// <summary>
/// Selects the quadruples indexed by the given subject
/// </summary>
internal HashSet<Int64> SelectIndexBySubject(RDFResource subjectResource)
{
if (subjectResource != null) {
if (this.Subjects.ContainsKey(subjectResource.PatternMemberID)) {
return this.Subjects[subjectResource.PatternMemberID];
}
}
return new HashSet<Int64>();
}
/// <summary>
/// Removes the quadruples with the given (non-blank) predicate
/// </summary>
public override RDFStore RemoveQuadruplesByPredicate(RDFResource predicateResource) {
if (predicateResource != null && !predicateResource.IsBlank) {
try {
//Modify command
this.Commands["DELETE"].CommandText = "DELETE FROM Quadruples WHERE PredicateID = @PREDID";
this.Commands["DELETE"].CommandTimeout = 300;
this.Commands["DELETE"].Parameters.Clear();
//Open connection
this.Connection.Open();
//Open transaction
this.Commands["DELETE"].Transaction = this.Commands["DELETE"].Connection.BeginTransaction();
//Prepare command
this.Commands["DELETE"].Prepare();
//Valorize parameters
this.Commands["DELETE"].Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
this.Commands["DELETE"].Parameters["PREDID"].Value = predicateResource.PatternMemberID;
//Execute command
this.Commands["DELETE"].ExecuteNonQuery();
//Close transaction
this.Commands["DELETE"].Transaction.Commit();
//Close connection
this.Connection.Close();
//Restore command
this.Commands["DELETE"].CommandText = "DELETE FROM Quadruples WHERE QuadrupleID = @QID";
this.Commands["DELETE"].CommandTimeout = 30;
this.Commands["DELETE"].Parameters.Clear();
this.Commands["DELETE"].Parameters.Add(new MySqlParameter("QID", MySqlDbType.Int64));
}
catch (Exception ex) {
//Close transaction
this.Commands["DELETE"].Transaction.Rollback();
//Close connection
this.Connection.Close();
//Restore command
this.Commands["DELETE"].CommandText = "DELETE FROM Quadruples WHERE QuadrupleID = @QID";
this.Commands["DELETE"].CommandTimeout = 30;
this.Commands["DELETE"].Parameters.Clear();
this.Commands["DELETE"].Parameters.Add(new MySqlParameter("QID", MySqlDbType.Int64));
//Propagate exception
throw new RDFStoreException("Cannot delete data from MySQL store because: " + ex.Message);
}
}
return this;
}
/// <summary>
/// Removes the quadruples with the given predicate
/// </summary>
public override RDFStore RemoveQuadruplesByPredicate(RDFResource predicateResource) {
if (predicateResource != null) {
//Create command
var command = new MySqlCommand("DELETE FROM Quadruples WHERE PredicateID = @PREDID", this.Connection);
command.Parameters.Add(new MySqlParameter("PREDID", MySqlDbType.Int64));
//Valorize parameters
command.Parameters["PREDID"].Value = predicateResource.PatternMemberID;
try {
//Open connection
this.Connection.Open();
//Prepare command
command.Prepare();
//Open transaction
command.Transaction = this.Connection.BeginTransaction();
//Execute command
command.ExecuteNonQuery();
//Close transaction
command.Transaction.Commit();
//Close connection
this.Connection.Close();
}
catch (Exception ex) {
//Rollback transaction
command.Transaction.Rollback();
//Close connection
this.Connection.Close();
//Propagate exception
throw new RDFStoreException("Cannot delete data from MySQL store because: " + ex.Message, ex);
}
}
return this;
}
/// <summary>
/// Builds the reification graph of the container:
/// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
/// Subject -> rdf:_N -> RDFContainer.ITEM(N)
/// </summary>
public RDFGraph ReifyContainer() {
RDFGraph reifCont = new RDFGraph();
// Subject -> rdf:type -> [rdf:Bag|rdf:Seq|rdf:Alt]
switch (this.ContainerType) {
case RDFModelEnums.RDFContainerTypes.Bag:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.BAG));
break;
case RDFModelEnums.RDFContainerTypes.Seq:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.SEQ));
break;
default:
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, RDFVocabulary.RDF.TYPE, RDFVocabulary.RDF.ALT));
break;
}
// Subject -> rdf:_N -> RDFContainer.ITEM(N)
Int32 index = 0;
foreach (Object item in this) {
RDFResource ordPred = new RDFResource(RDFVocabulary.RDF.BASE_URI + "_" + (++index));
if (this.ItemType == RDFModelEnums.RDFItemTypes.Resource) {
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFResource)item));
}
else {
reifCont.AddTriple(new RDFTriple(this.ReificationSubject, ordPred, (RDFLiteral)item));
}
}
return reifCont;
}
/// <summary>
/// Removes the quadruples with the given resource as object
/// </summary>
public override RDFStore RemoveQuadruplesByObject(RDFResource objectResource) {
if (objectResource != null) {
//Create command
var command = new MySqlCommand("DELETE FROM Quadruples WHERE ObjectID = @OBJID AND TripleFlavor = @TFV", this.Connection);
command.Parameters.Add(new MySqlParameter("OBJID", MySqlDbType.Int64));
command.Parameters.Add(new MySqlParameter("TFV", MySqlDbType.Int32));
//Valorize parameters
command.Parameters["OBJID"].Value = objectResource.PatternMemberID;
command.Parameters["TFV"].Value = RDFModelEnums.RDFTripleFlavors.SPO;
try {
//Open connection
this.Connection.Open();
//Prepare command
command.Prepare();
//Open transaction
command.Transaction = this.Connection.BeginTransaction();
//Execute command
command.ExecuteNonQuery();
//Close transaction
command.Transaction.Commit();
//Close connection
this.Connection.Close();
}
catch (Exception ex) {
//Rollback transaction
command.Transaction.Rollback();
//Close connection
this.Connection.Close();
//Propagate exception
throw new RDFStoreException("Cannot delete data from MySQL store because: " + ex.Message, ex);
}
}
return this;
}
/// <summary>
/// Default-ctor to build an ontology object property from the given non-blank resource
/// </summary>
public RDFOntologyObjectProperty(RDFResource propertyName): base(propertyName) { }
/// <summary>
/// Gets a memory store containing quadruples with the specified predicate
/// </summary>
public override RDFMemoryStore SelectQuadruplesByPredicate(RDFResource predicateResource) {
return this.SelectQuadruples(null, null, predicateResource, null, null);
}
/// <summary>
/// Gets a memory store containing quadruples with the specified object
/// </summary>
public override RDFStore SelectQuadruplesByObject(RDFResource objectResource) {
RDFMemoryStore result = new RDFMemoryStore();
if (objectResource != null) {
try {
//Open connection
this.Connection.Open();
//Modify command
this.Commands["SELECT"].CommandText += " WHERE TripleFlavor = 1 AND ObjectID = @OBJID";
//Add parameters
this.Commands["SELECT"].Parameters.Add(new SQLiteParameter("OBJID", DbType.Int64));
//Prepare command
this.Commands["SELECT"].Prepare();
//Valorize parameters
this.Commands["SELECT"].Parameters["OBJID"].Value = objectResource.PatternMemberID;
//Execute command
using (SQLiteDataReader fetchedQuadruples = this.Commands["SELECT"].ExecuteReader()) {
if (fetchedQuadruples.HasRows) {
//Iterate fetched quadruples
while (fetchedQuadruples.Read()) {
//Add the fetched quadruple to the result
result.AddQuadruple(RDFStoreUtilities.ParseQuadruple(fetchedQuadruples));
}
}
}
//Close connection
this.Connection.Close();
//Restore command
this.Commands["SELECT"].CommandText = "SELECT TripleFlavor, Context, Subject, Predicate, Object FROM main.Quadruples";
//Restore parameters
this.Commands["SELECT"].Parameters.Clear();
}
catch (Exception ex) {
//Close connection
this.Connection.Close();
//Restore command
this.Commands["SELECT"].CommandText = "SELECT TripleFlavor, Context, Subject, Predicate, Object FROM main.Quadruples";
//Restore parameters
this.Commands["SELECT"].Parameters.Clear();
//Propagate exception
throw new RDFStoreException("Cannot read data from SQLite store because: " + ex.Message);
}
}
return result;
}
/// <summary>
/// Gets a memory store containing quadruples with the specified object
/// </summary>
public override RDFMemoryStore SelectQuadruplesByObject(RDFResource objectResource) {
return this.SelectQuadruples(null, null, null, objectResource, null);
}
