/// <summary>
/// Gets a graph representation of this validation report
/// </summary>
public RDFGraph ToRDFGraph()
{
var result = new RDFGraph();
//ValidationReport
result.AddTriple(new RDFTriple(this, RDFVocabulary.RDF.TYPE, RDFVocabulary.SHACL.VALIDATION_REPORT));
//Conforms
if (this.Conforms)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.CONFORMS, new RDFTypedLiteral("true", RDFModelEnums.RDFDatatypes.XSD_BOOLEAN)));
}
else
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.CONFORMS, new RDFTypedLiteral("false", RDFModelEnums.RDFDatatypes.XSD_BOOLEAN)));
}
//Results
this.Results.ForEach(res => {
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT, res));
result = result.UnionWith(res.ToRDFGraph());
});
result.SetContext(this.URI);
return(result);
}
/// <summary>
/// Gets a graph representation of this validation report
/// </summary>
public RDFGraph ToRDFGraph()
{
RDFGraph result = new RDFGraph();
//ValidationReport
result.AddTriple(new RDFTriple(this, RDFVocabulary.RDF.TYPE, RDFVocabulary.SHACL.VALIDATION_REPORT));
//Conforms
if (this.Conforms)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.CONFORMS, RDFTypedLiteral.True));
}
else
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.CONFORMS, RDFTypedLiteral.False));
}
//Results
this.Results.ForEach(res =>
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT, res));
result = result.UnionWith(res.ToRDFGraph());
});
result.SetContext(this.URI);
return(result);
}
/// <summary>
/// Gets a graph representation of this shape
/// </summary>
public virtual RDFGraph ToRDFGraph()
{
var result = new RDFGraph();
//Severity
switch (this.Severity)
{
case RDFValidationEnums.RDFShapeSeverity.Info:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.SEVERITY_PROPERTY, RDFVocabulary.SHACL.INFO));
break;
case RDFValidationEnums.RDFShapeSeverity.Warning:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.SEVERITY_PROPERTY, RDFVocabulary.SHACL.WARNING));
break;
case RDFValidationEnums.RDFShapeSeverity.Violation:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.SEVERITY_PROPERTY, RDFVocabulary.SHACL.VIOLATION));
break;
}
//Deactivated
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.DEACTIVATED, this.Deactivated ? RDFTypedLiteral.True : RDFTypedLiteral.False));
//Messages
this.Messages.ForEach(message => result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.MESSAGE, message)));
//Targets
this.Targets.ForEach(target => result = result.UnionWith(target.ToRDFGraph(this)));
//Constraints
this.Constraints.ForEach(constraint => result = result.UnionWith(constraint.ToRDFGraph(this)));
result.SetContext(this.URI);
return(result);
}
/// <summary>
/// Gets a graph representation of this shapes graph
/// </summary>
public RDFGraph ToRDFGraph()
{
var result = new RDFGraph();
foreach (var shape in this)
{
result = result.UnionWith(shape.ToRDFGraph());
}
result.SetContext(this.URI);
return(result);
}
/// <summary>
/// Deserializes the given TriX stream to a graph.
/// </summary>
internal static RDFGraph Deserialize(Stream inputStream, Uri graphContext)
{
try
{
#region deserialize
RDFGraph result = new RDFGraph().SetContext(graphContext);
using (StreamReader streamReader = new StreamReader(inputStream, Encoding.UTF8))
{
using (XmlTextReader trixReader = new XmlTextReader(streamReader))
{
trixReader.DtdProcessing = DtdProcessing.Parse;
trixReader.Normalization = false;
#region document
XmlDocument trixDoc = new XmlDocument();
trixDoc.Load(trixReader);
#endregion
#region graph
if (trixDoc.DocumentElement != null)
{
if (trixDoc.DocumentElement.ChildNodes.Count > 1)
{
throw new Exception(" given TriX file seems to encode more than one graph.");
}
var graphEnum = trixDoc.DocumentElement.ChildNodes.GetEnumerator();
while (graphEnum != null && graphEnum.MoveNext())
{
XmlNode graph = (XmlNode)graphEnum.Current;
if (!graph.Name.Equals("graph", StringComparison.Ordinal))
{
throw new Exception(" a \"<graph>\" element was expected, instead of unrecognized \"<" + graph.Name + ">\".");
}
#region triple
var encodedUris = 0;
var tripleEnum = graph.ChildNodes.GetEnumerator();
while (tripleEnum != null && tripleEnum.MoveNext())
{
XmlNode triple = (XmlNode)tripleEnum.Current;
#region uri
if (triple.Name.Equals("uri", StringComparison.Ordinal))
{
encodedUris++;
if (encodedUris > 1)
{
throw new Exception(" given file encodes a graph with more than one \"<uri>\" element.");
}
result.SetContext(RDFModelUtilities.GetUriFromString(triple.ChildNodes[0].InnerText));
}
#endregion
#region triple
else if (triple.Name.Equals("triple", StringComparison.Ordinal) && triple.ChildNodes.Count == 3)
{
#region subj
//Subject is a resource ("<uri>") or a blank node ("<id>")
if (triple.ChildNodes[0].Name.Equals("uri", StringComparison.Ordinal) ||
triple.ChildNodes[0].Name.Equals("id", StringComparison.Ordinal))
{
//Sanitize eventual blank node value
if (triple.ChildNodes[0].Name.Equals("id", StringComparison.Ordinal))
{
if (!triple.ChildNodes[0].InnerText.StartsWith("bnode:"))
{
triple.ChildNodes[0].InnerText = string.Concat("bnode:", triple.ChildNodes[0].InnerText.Replace("_:", string.Empty));
}
}
}
//Subject is not valid: exception must be raised
else
{
throw new Exception("subject (" + triple.ChildNodes[0].Name + ") of \"<triple>\" element is neither \"<uri>\" or \"<id>\".");
}
#endregion
#region pred
//Predicate is not valid: exception must be raised
if (!triple.ChildNodes[1].Name.Equals("uri", StringComparison.Ordinal))
{
throw new Exception("predicate (" + triple.ChildNodes[1].Name + ") of \"<triple>\" element must be \"<uri>\".");
}
#endregion
#region object
//Object is a resource ("<uri>") or a blank node ("<id>")
if (triple.ChildNodes[2].Name.Equals("uri", StringComparison.Ordinal) ||
triple.ChildNodes[2].Name.Equals("id", StringComparison.Ordinal))
{
//Sanitize eventual blank node value
if (triple.ChildNodes[2].Name.Equals("id", StringComparison.Ordinal))
{
if (!triple.ChildNodes[2].InnerText.StartsWith("bnode:"))
{
triple.ChildNodes[2].InnerText = string.Concat("bnode:", triple.ChildNodes[2].InnerText.Replace("_:", string.Empty));
}
}
result.AddTriple(new RDFTriple(new RDFResource(triple.ChildNodes[0].InnerText),
new RDFResource(triple.ChildNodes[1].InnerText),
new RDFResource(triple.ChildNodes[2].InnerText)));
}
#endregion
#region literal
#region plain literal
else if (triple.ChildNodes[2].Name.Equals("plainLiteral"))
{
if (triple.ChildNodes[2].Attributes != null && triple.ChildNodes[2].Attributes.Count > 0)
{
XmlAttribute xmlLang = triple.ChildNodes[2].Attributes[string.Concat(RDFVocabulary.XML.PREFIX, ":lang")];
if (xmlLang != null)
{
//Plain literal with language
result.AddTriple(new RDFTriple(new RDFResource(triple.ChildNodes[0].InnerText),
new RDFResource(triple.ChildNodes[1].InnerText),
new RDFPlainLiteral(RDFModelUtilities.ASCII_To_Unicode(HttpUtility.HtmlDecode(triple.ChildNodes[2].InnerText)), xmlLang.Value)));
}
else
{
//Plain literal without language
result.AddTriple(new RDFTriple(new RDFResource(triple.ChildNodes[0].InnerText),
new RDFResource(triple.ChildNodes[1].InnerText),
new RDFPlainLiteral(RDFModelUtilities.ASCII_To_Unicode(HttpUtility.HtmlDecode(triple.ChildNodes[2].InnerText)))));
}
}
else
{
//Plain literal without language
result.AddTriple(new RDFTriple(new RDFResource(triple.ChildNodes[0].InnerText),
new RDFResource(triple.ChildNodes[1].InnerText),
new RDFPlainLiteral(RDFModelUtilities.ASCII_To_Unicode(HttpUtility.HtmlDecode(triple.ChildNodes[2].InnerText)))));
}
}
#endregion
#region typed literal
else if (triple.ChildNodes[2].Name.Equals("typedLiteral", StringComparison.Ordinal))
{
if (triple.ChildNodes[2].Attributes != null && triple.ChildNodes[2].Attributes.Count > 0)
{
XmlAttribute rdfDtype = triple.ChildNodes[2].Attributes["datatype"];
if (rdfDtype != null)
{
result.AddTriple(new RDFTriple(new RDFResource(triple.ChildNodes[0].InnerText),
new RDFResource(triple.ChildNodes[1].InnerText),
new RDFTypedLiteral(RDFModelUtilities.ASCII_To_Unicode(HttpUtility.HtmlDecode(triple.ChildNodes[2].InnerText)), RDFModelUtilities.GetDatatypeFromString(rdfDtype.Value))));
}
else
{
throw new Exception(" found typed literal without required \"datatype\" attribute.");
}
}
else
{
throw new Exception(" found typed literal without required \"datatype\" attribute.");
}
}
#endregion
#endregion
#region exception
//Object is not valid: exception must be raised
else
{
throw new Exception("object (" + triple.ChildNodes[2].Name + ") of \"<triple>\" element is neither \"<uri>\" or \"<id>\" or \"<plainLiteral>\" or \"<typedLiteral>\".");
}
#endregion
}
#endregion
#region exception
else
{
throw new Exception("found a TriX element (" + triple.Name + ") which is neither \"<uri>\" or \"<triple>\", or is a \"<triple>\" without the required 3 childs.");
}
#endregion
}
#endregion
}
}
#endregion
}
}
return(result);
#endregion
}
catch (Exception ex)
{
throw new RDFModelException("Cannot deserialize TriX because: " + ex.Message, ex);
}
}
/// <summary>
/// Deserializes the given Xml stream to a graph.
/// </summary>
internal static RDFGraph Deserialize(Stream inputStream)
{
try {
#region deserialize
XmlReaderSettings xrs = new XmlReaderSettings();
xrs.IgnoreComments = true;
xrs.DtdProcessing = DtdProcessing.Ignore;
RDFGraph result = new RDFGraph();
using (XmlReader xr = XmlReader.Create(new StreamReader(inputStream, Encoding.UTF8), xrs)) {
#region load
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xr);
#endregion
#region root
//Prepare the namespace table for the Xml selections
var nsMgr = new XmlNamespaceManager(new NameTable());
nsMgr.AddNamespace(RDFVocabulary.RDF.PREFIX, RDFVocabulary.RDF.BASE_URI);
//Select "rdf:RDF" root node
XmlNode rdfRDF = GetRdfRootNode(xmlDoc, nsMgr);
#endregion
#region prefixes
//Select "xmlns" attributes and try to add them to the namespace register
var xmlnsAttrs = GetXmlnsNamespaces(rdfRDF, nsMgr);
//Try to get the "xml:base" attribute, which is needed to resolve eventual relative #IDs in "rdf:about" nodes
//If it is not found, set it to the graph Uri
Uri xmlBase = null;
if (xmlnsAttrs != null && xmlnsAttrs.Count > 0)
{
var xmlBaseAttr = (rdfRDF.Attributes["xml:base"] ?? rdfRDF.Attributes["xmlns"]);
if (xmlBaseAttr != null)
{
xmlBase = RDFModelUtilities.GetUriFromString(xmlBaseAttr.Value);
}
}
//Always keep in synch the Context and the xmlBase
if (xmlBase != null)
{
result.SetContext(xmlBase);
}
else
{
xmlBase = result.Context;
}
#endregion
#region elements
//Parse resource elements, which are the childs of root node and represent the subjects
if (rdfRDF.HasChildNodes)
{
var subjNodesEnum = rdfRDF.ChildNodes.GetEnumerator();
while (subjNodesEnum != null && subjNodesEnum.MoveNext())
{
#region subj
//Get the current resource node
XmlNode subjNode = (XmlNode)subjNodesEnum.Current;
RDFResource subj = GetSubjectNode(subjNode, xmlBase, result);
if (subj == null)
{
continue;
}
#endregion
#region predObjList
//Parse pred elements, which are the childs of subj element
if (subjNode.HasChildNodes)
{
IEnumerator predNodesEnum = subjNode.ChildNodes.GetEnumerator();
while (predNodesEnum != null && predNodesEnum.MoveNext())
{
//Get the current pred node
RDFResource pred = null;
XmlNode predNode = (XmlNode)predNodesEnum.Current;
if (predNode.NamespaceURI == String.Empty)
{
pred = new RDFResource(xmlBase + predNode.LocalName);
}
else
{
pred = (predNode.LocalName.StartsWith("autoNS") ?
new RDFResource(predNode.NamespaceURI) :
new RDFResource(predNode.NamespaceURI + predNode.LocalName));
}
#region object
//Check if there is a "rdf:about" or a "rdf:resource" attribute
XmlAttribute rdfObject =
(GetRdfAboutAttribute(predNode) ??
GetRdfResourceAttribute(predNode));
if (rdfObject != null)
{
//Attribute found, but we must check if it is "rdf:ID", "rdf:nodeID" or a relative Uri
String rdfObjectValue = ResolveRelativeNode(rdfObject, xmlBase);
RDFResource obj = new RDFResource(rdfObjectValue);
result.AddTriple(new RDFTriple(subj, pred, obj));
continue;
}
#endregion
#region typed literal
//Check if there is a "rdf:datatype" attribute
XmlAttribute rdfDatatype = GetRdfDatatypeAttribute(predNode);
if (rdfDatatype != null)
{
RDFModelEnums.RDFDatatype dt = RDFModelUtilities.GetDatatypeFromString(rdfDatatype.Value);
RDFTypedLiteral tLit = new RDFTypedLiteral(HttpUtility.HtmlDecode(predNode.InnerText), dt);
result.AddTriple(new RDFTriple(subj, pred, tLit));
continue;
}
//Check if there is a "rdf:parseType=Literal" attribute
XmlAttribute parseLiteral = GetParseTypeLiteralAttribute(predNode);
if (parseLiteral != null)
{
RDFTypedLiteral tLit = new RDFTypedLiteral(HttpUtility.HtmlDecode(predNode.InnerXml), RDFModelEnums.RDFDatatype.RDFS_LITERAL);
result.AddTriple(new RDFTriple(subj, pred, tLit));
continue;
}
#endregion
#region plain literal
//Check if there is a "xml:lang" attribute, or if a unique textual child
XmlAttribute xmlLang = GetXmlLangAttribute(predNode);
if (xmlLang != null || (predNode.HasChildNodes && predNode.ChildNodes.Count == 1 && predNode.ChildNodes[0].NodeType == XmlNodeType.Text))
{
RDFPlainLiteral pLit = new RDFPlainLiteral(HttpUtility.HtmlDecode(predNode.InnerText), (xmlLang != null ? xmlLang.Value : String.Empty));
result.AddTriple(new RDFTriple(subj, pred, pLit));
continue;
}
#endregion
#region collection
//Check if there is a "rdf:parseType=Collection" attribute
XmlAttribute rdfCollect = GetParseTypeCollectionAttribute(predNode);
if (rdfCollect != null)
{
ParseCollectionElements(xmlBase, predNode, subj, pred, result);
continue;
}
#endregion
#region container
//Check if there is a "rdf:[Bag|Seq|Alt]" child node
XmlNode container = GetContainerNode(predNode);
if (container != null)
{
//Distinguish the right type of RDF container to build
if (container.LocalName.Equals(RDFVocabulary.RDF.PREFIX + ":Bag", StringComparison.Ordinal) || container.LocalName.Equals("Bag", StringComparison.Ordinal))
{
ParseContainerElements(RDFModelEnums.RDFContainerType.Bag, container, subj, pred, result);
}
else if (container.LocalName.Equals(RDFVocabulary.RDF.PREFIX + ":Seq", StringComparison.Ordinal) || container.LocalName.Equals("Seq", StringComparison.Ordinal))
{
ParseContainerElements(RDFModelEnums.RDFContainerType.Seq, container, subj, pred, result);
}
else if (container.LocalName.Equals(RDFVocabulary.RDF.PREFIX + ":Alt", StringComparison.Ordinal) || container.LocalName.Equals("Alt", StringComparison.Ordinal))
{
ParseContainerElements(RDFModelEnums.RDFContainerType.Alt, container, subj, pred, result);
}
}
#endregion
}
}
#endregion
}
}
#endregion
}
return(result);
#endregion
}
catch (Exception ex) {
throw new RDFModelException("Cannot deserialize Xml because: " + ex.Message, ex);
}
}
/// <summary>
/// Gets a graph representation of this validation result
/// </summary>
public RDFGraph ToRDFGraph()
{
var result = new RDFGraph();
//ValidationResult
result.AddTriple(new RDFTriple(this, RDFVocabulary.RDF.TYPE, RDFVocabulary.SHACL.VALIDATION_RESULT));
//Severity
switch (this.Severity)
{
case RDFValidationEnums.RDFShapeSeverity.Info:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT_SEVERITY, RDFVocabulary.SHACL.INFO));
break;
case RDFValidationEnums.RDFShapeSeverity.Warning:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT_SEVERITY, RDFVocabulary.SHACL.WARNING));
break;
case RDFValidationEnums.RDFShapeSeverity.Violation:
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT_SEVERITY, RDFVocabulary.SHACL.VIOLATION));
break;
}
//SourceShape
if (this.SourceShape != null)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.SOURCE_SHAPE, this.SourceShape));
}
//SourceConstraintComponent
if (this.SourceConstraintComponent != null)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.SOURCE_CONSTRAINT_COMPONENT, this.SourceConstraintComponent));
}
//FocusNode
if (this.FocusNode != null && this.FocusNode is RDFResource)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.FOCUS_NODE, (RDFResource)this.FocusNode));
}
//ResultPath
if (this.ResultPath != null)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT_PATH, this.ResultPath));
}
//Value
if (this.ResultValue != null)
{
if (this.ResultValue is RDFLiteral)
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.VALUE, (RDFLiteral)this.ResultValue));
}
else
{
result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.VALUE, (RDFResource)this.ResultValue));
}
}
//Messages
this.ResultMessages.ForEach(message => result.AddTriple(new RDFTriple(this, RDFVocabulary.SHACL.RESULT_MESSAGE, message)));
result.SetContext(this.URI);
return(result);
}
