/// <summary>
/// Detects the inline instances of shacl:PropertyShape and populates the shapes graph with their definition
/// </summary>
private static void DetectInlinePropertyShapes(RDFGraph graph, RDFShapesGraph shapesGraph)
{
RDFGraph inlinePropertyShapes = graph.SelectTriplesByPredicate(RDFVocabulary.SHACL.PROPERTY);
foreach (RDFTriple inlinePropertyShape in inlinePropertyShapes)
{
//Inline property shapes are blank objects of "sh:property" constraints:
//we wont find their explicit shape definition within the shapes graph.
if (inlinePropertyShape.Object is RDFResource inlinePropertyShapeResource &&
inlinePropertyShapeResource.IsBlank &&
shapesGraph.SelectShape(inlinePropertyShapeResource.ToString()) == null)
{
RDFTriple inlinePropertyShapePath = graph.SelectTriplesBySubject(inlinePropertyShapeResource)
.SelectTriplesByPredicate(RDFVocabulary.SHACL.PATH)
.FirstOrDefault();
if (inlinePropertyShapePath != null &&
inlinePropertyShapePath.Object is RDFResource)
{
RDFPropertyShape propertyShape = new RDFPropertyShape(inlinePropertyShapeResource, (RDFResource)inlinePropertyShapePath.Object);
DetectShapeTargets(graph, propertyShape);
DetectShapeAttributes(graph, propertyShape);
DetectShapeNonValidatingAttributes(graph, propertyShape);
DetectShapeConstraints(graph, propertyShape);
shapesGraph.AddShape(propertyShape);
}
}
}
}
/// <summary>
/// Detects the typed instances of shacl:PropertyShape and populates the shapes graph with their definition
/// </summary>
private static void DetectTypedPropertyShapes(RDFGraph graph, RDFShapesGraph shapesGraph)
{
RDFGraph declaredPropertyShapes = graph.SelectTriplesByPredicate(RDFVocabulary.RDF.TYPE)
.SelectTriplesByObject(RDFVocabulary.SHACL.PROPERTY_SHAPE);
foreach (RDFTriple declaredPropertyShape in declaredPropertyShapes)
{
RDFTriple declaredPropertyShapePath = graph.SelectTriplesBySubject((RDFResource)declaredPropertyShape.Subject)
.SelectTriplesByPredicate(RDFVocabulary.SHACL.PATH)
.FirstOrDefault();
if (declaredPropertyShapePath != null &&
declaredPropertyShapePath.Object is RDFResource)
{
RDFPropertyShape propertyShape = new RDFPropertyShape((RDFResource)declaredPropertyShape.Subject, (RDFResource)declaredPropertyShapePath.Object);
DetectShapeTargets(graph, propertyShape);
DetectShapeAttributes(graph, propertyShape);
DetectShapeNonValidatingAttributes(graph, propertyShape);
DetectShapeConstraints(graph, propertyShape);
shapesGraph.AddShape(propertyShape);
}
}
}
private static void MergeShape(RDFShapesGraph result, RDFShape shape)
{
RDFShape existingShape = result.SelectShape(shape.ToString());
if (existingShape == null)
{
result.AddShape(shape);
}
else
{
existingShape.Targets.AddRange(shape.Targets);
existingShape.Constraints.AddRange(shape.Constraints);
existingShape.Messages.AddRange(shape.Messages);
if (existingShape is RDFPropertyShape && shape is RDFPropertyShape)
{
((RDFPropertyShape)existingShape).Descriptions.AddRange(((RDFPropertyShape)shape).Descriptions);
((RDFPropertyShape)existingShape).Names.AddRange(((RDFPropertyShape)shape).Names);
}
result.RemoveShape(existingShape);
result.AddShape(existingShape);
}
}
/// <summary>
/// Detects the typed instances of shacl:NodeShape and populates the shapes graph with their definition
/// </summary>
private static void DetectTypedNodeShapes(RDFGraph graph, RDFShapesGraph shapesGraph)
{
RDFGraph declaredNodeShapes = graph.SelectTriplesByPredicate(RDFVocabulary.RDF.TYPE)
.SelectTriplesByObject(RDFVocabulary.SHACL.NODE_SHAPE);
foreach (RDFTriple declaredNodeShape in declaredNodeShapes)
{
RDFNodeShape nodeShape = new RDFNodeShape((RDFResource)declaredNodeShape.Subject);
DetectShapeTargets(graph, nodeShape);
DetectShapeAttributes(graph, nodeShape);
DetectShapeConstraints(graph, nodeShape);
shapesGraph.AddShape(nodeShape);
}
}