/// <summary>
/// Creates a new Open Connection Form
/// </summary>
/// <param name="g">Graph contaning Connection Definitions</param>
public OpenConnectionForm(IGraph g)
{
InitializeComponent();
//Find connections defined in the Configuration Graph
this._g = g;
INode genericManager = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.ClassGenericManager);
INode rdfsLabel = g.CreateUriNode(new Uri(NamespaceMapper.RDFS + "label"));
SparqlParameterizedString getConnections = new SparqlParameterizedString();
getConnections.QueryText = "SELECT ?obj ?label WHERE { ?obj a @type . OPTIONAL { ?obj @label ?label } } ORDER BY ?label";
getConnections.SetParameter("type", genericManager);
getConnections.SetParameter("label", rdfsLabel);
Object results = this._g.ExecuteQuery(getConnections.ToString());
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
this._connectionNodes.Add(r["obj"]);
if (r.HasValue("label"))
{
this.lstConnections.Items.Add(r["label"]);
}
else
{
this.lstConnections.Items.Add(r["obj"]);
}
}
}
}
private IEnumerable<SparqlUpdateCommand> GetDeleteDataCommands(IEnumerable<RomanticWeb.Model.EntityQuad> quads)
{
foreach (var quad in quads)
{
SparqlParameterizedString insert = new SparqlParameterizedString(DeleteDataCommandText);
insert.SetParameter("subject", quad.Subject.UnWrapNode(_nodeFactory));
insert.SetParameter("predicate", quad.Predicate.UnWrapNode(_nodeFactory));
insert.SetParameter("object", quad.Object.UnWrapNode(_nodeFactory));
insert.SetUri("graph", quad.Graph.UnWrapGraphUri());
foreach (var command in _parser.ParseFromString(insert).Commands)
{
yield return command;
}
}
}
public void SetParameterShouldIgnoreParameterPrefixChar()
{
var sut = new SparqlParameterizedString("SELECT * WHERE { ?s a @o }");
sut.SetParameter("@o", new NodeFactory().CreateLiteralNode("test"));
Assert.Equal("SELECT * WHERE { ?s a \"test\" }", sut.ToString());
}
public void ShouldReplaceParameterStartingWithUnderscore()
{
var sut = new SparqlParameterizedString("SELECT * WHERE { ?s a @_o }");
sut.SetParameter("_o", new NodeFactory().CreateLiteralNode("test"));
Assert.Equal("SELECT * WHERE { ?s a \"test\" }", sut.ToString());
}
public void Core445_ParsingTest()
{
Random randomizer = new Random();
SparqlParameterizedString command = new SparqlParameterizedString("SELECT * FROM <urn:with@char> FROM <urn:with?or$char> WHERE { ?subject rdfs:subClassOf ? $c . $c rdfs:label \"string literal with lang tag @inLiteralParamPattern \"@en }");
command.SetVariable("subject", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetVariable("c", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetVariable("or", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetVariable("char", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetParameter("char", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetParameter("en", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
command.SetParameter("inLiteralParamPattern", g.CreateUriNode(UriFactory.Create("urn:some-uri")));
String output = command.ToString();
Assert.True(output.Contains("<urn:with@char>"), "In IRI @ characters should not start a parameter capture");
Assert.True(output.Contains("<urn:with?or$char>"), "In IRI ? and $ characters should not start a variable capture");
Assert.True(output.Contains("rdfs:subClassOf ? "), "Property path ? quantifier should not start a variable capture");
Assert.True(output.Contains("@en"), "Language tags should not start a parameter capture");
Assert.True(output.Contains("@inLiteralParamPattern"), "In string literal @ characters should not start a parameter capture");
}
public void SparqlParameterizedStringWithNulls()
{
SparqlParameterizedString query = new SparqlParameterizedString();
query.CommandText = "SELECT * WHERE { @s ?p ?o }";
//Set a URI to a valid value
query.SetUri("s", new Uri("http://example.org"));
Console.WriteLine(query.ToString());
Console.WriteLine();
//Set the parameter to a null
query.SetParameter("s", null);
Console.WriteLine(query.ToString());
}
public void SparqlParameterizedStringWithNulls()
{
SparqlParameterizedString query = new SparqlParameterizedString();
query.CommandText = "SELECT * WHERE { @s ?p ?o }";
//Set a URI to a valid value
query.SetUri("s", new Uri("http://example.org"));
Console.WriteLine(query.ToString());
Console.WriteLine();
//Set the parameter to a null
query.SetParameter("s", null);
Console.WriteLine(query.ToString());
}
/// <summary>
/// Queries the Store using the Graph Pattern specified by the set of Statement Patterns
/// </summary>
/// <param name="graph">Graph Pattern</param>
/// <param name="options">Query Options</param>
/// <param name="sink">Results Sink</param>
/// <remarks>
/// <para>
/// Implemented by converting the Statement Patterns into a SPARQL SELECT query and executing that against the underlying Store's SPARQL engine
/// </para>
/// <para>
/// The only Query Option that is supported is the Limit option
/// </para>
/// </remarks>
public void Query(Statement[] graph, SW.Query.QueryOptions options, SW.Query.QueryResultSink sink)
{
//Implement as a SPARQL SELECT
SparqlParameterizedString queryString = new SparqlParameterizedString();
queryString.QueryText = "SELECT * WHERE {";
int p = 0;
foreach (Statement stmt in graph)
{
//Add Subject
queryString.QueryText += "\n";
if (stmt.Subject is Variable)
{
queryString.QueryText += stmt.Subject.ToString();
}
else
{
queryString.QueryText += "@param" + p;
queryString.SetParameter("param" + p, SemWebConverter.FromSemWeb(stmt.Subject, this._mapping));
p++;
}
queryString.QueryText += " ";
//Add Predicate
if (stmt.Predicate is Variable)
{
queryString.QueryText += stmt.Predicate.ToString();
}
else
{
queryString.QueryText += "@param" + p;
queryString.SetParameter("param" + p, SemWebConverter.FromSemWeb(stmt.Predicate, this._mapping));
p++;
}
queryString.QueryText += " ";
//Add Object
if (stmt.Object is Variable)
{
queryString.QueryText += stmt.Object.ToString();
}
else
{
queryString.QueryText += "@param" + p;
queryString.SetParameter("param" + p, SemWebConverter.FromSemWeb(stmt.Object, this._mapping));
p++;
}
queryString.QueryText += " .";
}
queryString.QueryText += "}";
//Execute the Query and convert the Results
Object results = this._store.ExecuteQuery(queryString.ToString());
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
sink.Init(rset.Variables.Select(v => new Variable(v)).ToArray());
if (rset.Count > 0)
{
int c = 0;
foreach (SparqlResult r in rset)
{
//Apply Limit if applicable
if (options.Limit > 0 && c >= options.Limit)
{
sink.Finished();
return;
}
//Convert the Set to VariableBindings for SemWeb
Variable[] vars = r.Variables.Select(v => new Variable(v)).ToArray();
Resource[] resources = r.Variables.Select(v => SemWebConverter.ToSemWeb(r[v], this._mapping)).ToArray();
SW.Query.VariableBindings bindings = new SW.Query.VariableBindings(vars, resources);
//Keep adding results until the sink tells us to stop
if (!sink.Add(bindings))
{
sink.Finished();
return;
}
c++;
}
sink.Finished();
}
else
{
sink.Finished();
}
}
else
{
throw new RdfQueryException("Query returned an unexpected result where a SPARQL Result Set was expected");
}
}
/// <summary>
/// Internal method which generates the HTML Output for the Graph
/// </summary>
/// <param name="context">Writer Context</param>
private void GenerateOutput(HtmlWriterContext context)
{
Object results;
//Add the Namespaces we want to use later on
context.QNameMapper.AddNamespace("owl", new Uri(NamespaceMapper.OWL));
context.QNameMapper.AddNamespace("rdf", new Uri(NamespaceMapper.RDF));
context.QNameMapper.AddNamespace("rdfs", new Uri(NamespaceMapper.RDFS));
context.QNameMapper.AddNamespace("dc", new Uri("http://purl.org/dc/elements/1.1/"));
context.QNameMapper.AddNamespace("dct", new Uri("http://purl.org/dc/terms/"));
context.QNameMapper.AddNamespace("vann", new Uri("http://purl.org/vocab/vann/"));
context.QNameMapper.AddNamespace("vs", new Uri("http://www.w3.org/2003/06/sw-vocab-status/ns#"));
//Find the Node that represents the Schema Ontology
//Assumes there is exactly one thing given rdf:type owl:Ontology
IUriNode ontology = context.Graph.CreateUriNode(new Uri(NamespaceMapper.OWL + "Ontology"));
IUriNode rdfType = context.Graph.CreateUriNode(new Uri(RdfSpecsHelper.RdfType));
IUriNode rdfsLabel = context.Graph.CreateUriNode(new Uri(NamespaceMapper.RDFS + "label"));
INode ontoNode = context.Graph.GetTriplesWithPredicateObject(rdfType, ontology).Select(t => t.Subject).FirstOrDefault();
INode ontoLabel = (ontoNode != null) ? context.Graph.GetTriplesWithSubjectPredicate(ontoNode, rdfsLabel).Select(t => t.Object).FirstOrDefault() : null;
//Stuff for formatting
//We'll use the Turtle Formatter to get nice QNames wherever possible
context.NodeFormatter = new TurtleFormatter(context.QNameMapper);
context.UriFormatter = (IUriFormatter)context.NodeFormatter;
//Page Header
context.HtmlWriter.Write("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML+RDFa 1.0//EN\" \"http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd\">");
context.HtmlWriter.WriteLine();
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Html);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Head);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Title);
context.HtmlWriter.WriteEncodedText("Schema");
if (ontoNode != null && ontoLabel != null)
{
context.HtmlWriter.WriteEncodedText(" - " + ontoLabel.ToSafeString());
}
else if (context.Graph.BaseUri != null)
{
context.HtmlWriter.WriteEncodedText(" - " + context.Graph.BaseUri.ToString());
}
context.HtmlWriter.RenderEndTag();
if (!this.Stylesheet.Equals(String.Empty))
{
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Href, this.Stylesheet);
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Type, "text/css");
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Rel, "stylesheet");
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Link);
context.HtmlWriter.RenderEndTag();
}
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Start Body
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Body);
//Title
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H2);
context.HtmlWriter.WriteEncodedText("Schema");
if (ontoNode != null && ontoLabel != null)
{
context.HtmlWriter.WriteEncodedText(" - " + ontoLabel.ToSafeString());
}
else if (context.Graph.BaseUri != null)
{
context.HtmlWriter.WriteEncodedText(" - " + context.Graph.BaseUri.ToString());
}
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Show the Description of the Schema (if any)
if (ontoNode != null)
{
SparqlParameterizedString getOntoDescrip = new SparqlParameterizedString();
getOntoDescrip.Namespaces = context.QNameMapper;
getOntoDescrip.CommandText = "SELECT * WHERE { @onto a owl:Ontology . OPTIONAL { @onto rdfs:comment ?description } . OPTIONAL { @onto vann:preferredNamespacePrefix ?nsPrefix ; vann:preferredNamespaceUri ?nsUri } . OPTIONAL { @onto dc:creator ?creator . ?creator (foaf:name | rdfs:label) ?creatorName } }";
getOntoDescrip.SetParameter("onto", ontoNode);
try
{
results = context.Graph.ExecuteQuery(getOntoDescrip);
if (results is SparqlResultSet)
{
if (!((SparqlResultSet)results).IsEmpty)
{
SparqlResult ontoInfo = ((SparqlResultSet)results)[0];
//Show rdfs:comment on the Ontology
if (ontoInfo.HasValue("description"))
{
INode descrip = ontoInfo["description"];
if (descrip.NodeType == NodeType.Literal)
{
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.Write(((ILiteralNode)descrip).Value);
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
}
}
//Show Author Information
if (ontoInfo.HasValue("creator"))
{
INode author = ontoInfo["creator"];
INode authorName = ontoInfo["creatorName"];
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Em);
context.HtmlWriter.WriteEncodedText("Schema created by ");
if (author.NodeType == NodeType.Uri)
{
context.HtmlWriter.AddAttribute("href", ((IUriNode)author).Uri.ToString());
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassUri);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
}
switch (authorName.NodeType)
{
case NodeType.Uri:
context.HtmlWriter.WriteEncodedText(((IUriNode)authorName).Uri.ToString());
break;
case NodeType.Literal:
context.HtmlWriter.WriteEncodedText(((ILiteralNode)authorName).Value);
break;
default:
context.HtmlWriter.WriteEncodedText(authorName.ToString());
break;
}
if (author.NodeType == NodeType.Uri) context.HtmlWriter.RenderEndTag();
context.HtmlWriter.RenderEndTag();
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
}
//Show the Namespace information for the Schema
if (ontoInfo.HasValue("nsPrefix"))
{
if (ontoInfo["nsPrefix"].NodeType == NodeType.Literal && ontoInfo["nsUri"].NodeType == NodeType.Uri)
{
//Add this QName to the QName Mapper so we can get nice QNames later on
String prefix = ((ILiteralNode)ontoInfo["nsPrefix"]).Value;
context.QNameMapper.AddNamespace(prefix, ((IUriNode)ontoInfo["nsUri"]).Uri);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H4);
context.HtmlWriter.WriteEncodedText("Preferred Namespace Definition");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Show human readable description of preferred Namespace Settings
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.WriteEncodedText("Preferred Namespace Prefix is ");
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Strong);
context.HtmlWriter.WriteEncodedText(prefix);
context.HtmlWriter.RenderEndTag();
context.HtmlWriter.WriteEncodedText(" and preferred Namespace URI is ");
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Href, context.QNameMapper.GetNamespaceUri(prefix).ToString());
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassUri);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
context.HtmlWriter.WriteEncodedText(context.QNameMapper.GetNamespaceUri(prefix).ToString());
context.HtmlWriter.RenderEndTag();
context.HtmlWriter.RenderEndTag();
//RDF/XML Syntax
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H5);
context.HtmlWriter.WriteEncodedText("RDF/XML Syntax");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.AddStyleAttribute(HtmlTextWriterStyle.Width, "90%");
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Pre);
context.HtmlWriter.WriteEncodedText("<?xml version=\"1.0\" charset=\"utf-8\"?>");
context.HtmlWriter.WriteLine();
context.HtmlWriter.WriteEncodedText("<rdf:RDF xmlns:rdf=\"" + NamespaceMapper.RDF + "\" xmlns:" + prefix + "=\"" + context.UriFormatter.FormatUri(context.QNameMapper.GetNamespaceUri(prefix)) + "\">");
context.HtmlWriter.WriteLine();
context.HtmlWriter.WriteEncodedText(" <!-- Your RDF here... -->");
context.HtmlWriter.WriteLine();
context.HtmlWriter.WriteEncodedText("</rdf:RDF>");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Turtle/N3 Syntax
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H5);
context.HtmlWriter.WriteEncodedText("Turtle/N3 Syntax");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.AddStyleAttribute(HtmlTextWriterStyle.Width, "90%");
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Pre);
context.HtmlWriter.WriteEncodedText("@prefix " + prefix + ": <" + context.UriFormatter.FormatUri(context.QNameMapper.GetNamespaceUri(prefix)) + "> .");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//SPARQL Syntax
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H5);
context.HtmlWriter.WriteEncodedText("SPARQL Syntax");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.AddStyleAttribute(HtmlTextWriterStyle.Width, "90%");
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Pre);
context.HtmlWriter.WriteEncodedText("PREFIX " + prefix + ": <" + context.UriFormatter.FormatUri(context.QNameMapper.GetNamespaceUri(prefix)) + ">");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
}
}
}
}
else
{
throw new RdfOutputException("Tried to make a SPARQL Query to determine Schema Information but an unexpected Query Result was returned");
}
}
catch (RdfQueryException queryEx)
{
throw new RdfOutputException("Tried to make a SPARQL Query to determine Schema Information but a Query Error occurred", queryEx);
}
}
//Show lists of all Classes and Properties in the Schema
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H4);
context.HtmlWriter.WriteEncodedText("Class and Property Summary");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.WriteEncodedText("This Schema defines the following classes:");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.AddStyleAttribute("width", "90%");
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassBox);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
//Get the Classes and Display
SparqlParameterizedString getClasses = new SparqlParameterizedString();
getClasses.Namespaces = context.QNameMapper;
getClasses.CommandText = "SELECT DISTINCT ?class WHERE { { ?class a rdfs:Class } UNION { ?class a owl:Class } FILTER(ISURI(?class)) } ORDER BY ?class";
try
{
results = context.Graph.ExecuteQuery(getClasses);
if (results is SparqlResultSet)
{
SparqlResultSet rs = (SparqlResultSet)results;
for (int i = 0; i < rs.Count; i++)
{
SparqlResult r = rs[i];
//Get the QName and output a Link to an anchor that we'll generate later to let
//users jump to a Class/Property definition
String qname = context.NodeFormatter.Format(r["class"]);
context.HtmlWriter.AddAttribute("href", "#" + qname);
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassUri);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
context.HtmlWriter.WriteEncodedText(qname);
context.HtmlWriter.RenderEndTag();
if (i < rs.Count - 1)
{
context.HtmlWriter.WriteEncodedText(" , ");
}
}
}
else
{
throw new RdfOutputException("Tried to make a SPARQL Query to find Classes in the Schema but an unexpected Query Result was returned");
}
}
catch (RdfQueryException queryEx)
{
throw new RdfOutputException("Tried to make a SPARQL Query to find Classes in the Schema but a Query Error occurred", queryEx);
}
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.WriteEncodedText("This Schema defines the following properties:");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
context.HtmlWriter.AddStyleAttribute("width", "90%");
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassBox);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
//Get the Properties and Display
SparqlParameterizedString getProperties = new SparqlParameterizedString();
getProperties.Namespaces = context.QNameMapper;
getProperties.CommandText = "SELECT DISTINCT ?property WHERE { { ?property a rdf:Property } UNION { ?property a owl:DatatypeProperty } UNION { ?property a owl:ObjectProperty } FILTER(ISURI(?property)) } ORDER BY ?property";
try
{
results = context.Graph.ExecuteQuery(getProperties);
if (results is SparqlResultSet)
{
SparqlResultSet rs = (SparqlResultSet)results;
for (int i = 0; i < rs.Count; i++)
{
SparqlResult r = rs[i];
//Get the QName and output a Link to an anchor that we'll generate later to let
//users jump to a Class/Property definition
String qname = context.NodeFormatter.Format(r["property"]);
context.HtmlWriter.AddAttribute("href", "#" + qname);
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassUri);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
context.HtmlWriter.WriteEncodedText(qname);
context.HtmlWriter.RenderEndTag();
if (i < rs.Count - 1)
{
context.HtmlWriter.WriteEncodedText(" , ");
}
}
}
else
{
throw new RdfOutputException("Tried to make a SPARQL Query to find Properties in the Schema but an unexpected Query Result was returned");
}
}
catch (RdfQueryException queryEx)
{
throw new RdfOutputException("Tried to make a SPARQL Query to find Properties in the Schema but a Query Error occurred", queryEx);
}
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Show details for each class
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H3);
context.HtmlWriter.WriteEncodedText("Classes");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Now create the URI Nodes we need for the next stage of Output
IUriNode rdfsDomain = context.Graph.CreateUriNode(new Uri(NamespaceMapper.RDFS + "domain"));
IUriNode rdfsRange = context.Graph.CreateUriNode(new Uri(NamespaceMapper.RDFS + "range"));
IUriNode rdfsSubClassOf = context.Graph.CreateUriNode(new Uri(NamespaceMapper.RDFS + "subClassOf"));
IUriNode rdfsSubPropertyOf = context.Graph.CreateUriNode(new Uri(NamespaceMapper.RDFS + "subPropertyOf"));
IUriNode owlDisjointClass = context.Graph.CreateUriNode(new Uri(NamespaceMapper.OWL + "disjointWith"));
IUriNode owlEquivalentClass = context.Graph.CreateUriNode(new Uri(NamespaceMapper.OWL + "equivalentClass"));
IUriNode owlEquivalentProperty = context.Graph.CreateUriNode(new Uri(NamespaceMapper.OWL + "equivalentProperty"));
IUriNode owlInverseProperty = context.Graph.CreateUriNode(new Uri(NamespaceMapper.OWL + "inverseOf"));
//Alter our previous getClasses query to get additional details
getClasses.CommandText = "SELECT ?class (SAMPLE(?label) AS ?classLabel) (SAMPLE(?description) AS ?classDescription) WHERE { { ?class a rdfs:Class } UNION { ?class a owl:Class } FILTER(ISURI(?class)) OPTIONAL { ?class rdfs:label ?label } OPTIONAL { ?class rdfs:comment ?description } } GROUP BY ?class ORDER BY ?class";
try
{
results = context.Graph.ExecuteQuery(getClasses);
if (results is SparqlResultSet)
{
foreach (SparqlResult r in (SparqlResultSet)results)
{
String qname = context.NodeFormatter.Format(r["class"]);
//Use a <div> for each Class
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassBox);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Div);
//Add the Anchor to which earlier Class summary links to
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Name, qname);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
context.HtmlWriter.RenderEndTag();
//Show Basic Class Information
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H4);
context.HtmlWriter.WriteEncodedText("Class: " + qname);
context.HtmlWriter.RenderEndTag();
//Show "Local Name - Label"
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Em);
if (TurtleSpecsHelper.IsValidQName(qname))
{
context.HtmlWriter.WriteEncodedText(qname);
}
else
{
Uri temp = new Uri(qname, UriKind.RelativeOrAbsolute);
if (!temp.Fragment.Equals(String.Empty))
{
context.HtmlWriter.WriteEncodedText(temp.Fragment);
}
else
{
#if !SILVERLIGHT
context.HtmlWriter.WriteEncodedText(temp.Segments.Last());
#else
context.HtmlWriter.WriteEncodedText(temp.Segments().Last());
#endif
}
}
context.HtmlWriter.RenderEndTag();
if (r.HasValue("classLabel"))
{
if (r["classLabel"] != null && r["classLabel"].NodeType == NodeType.Literal)
{
context.HtmlWriter.WriteEncodedText(" - ");
context.HtmlWriter.WriteEncodedText(((ILiteralNode)r["classLabel"]).Value);
}
}
context.HtmlWriter.WriteLine();
context.HtmlWriter.WriteBreak();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Output further information about the class
IEnumerable<Triple> ts;
//Output any Subclasses
ts = context.Graph.GetTriplesWithSubjectPredicate(rdfsSubClassOf, r["class"]);
this.GenerateCaptionedInformation(context, "Has Sub Classes", ts, t => t.Object);
//Output Properties which have this as domain/range
ts = context.Graph.GetTriplesWithPredicateObject(rdfsDomain, r["class"]);
this.GenerateCaptionedInformation(context, "Properties Include", ts, t => t.Subject);
ts = context.Graph.GetTriplesWithPredicateObject(rdfsRange, r["class"]);
this.GenerateCaptionedInformation(context, "Used With", ts, t => t.Subject);
//Output any Equivalent Classes
ts = context.Graph.GetTriplesWithSubjectPredicate(r["class"], owlEquivalentClass).Concat(context.Graph.GetTriplesWithPredicateObject(owlEquivalentClass, r["class"]));
this.GenerateCaptionedInformation(context, "Equivalent Classes", ts, t => t.Subject.Equals(r["class"]) ? t.Object : t.Subject);
//Output any Disjoint Classes
ts = context.Graph.GetTriplesWithSubjectPredicate(r["class"], owlDisjointClass).Concat(context.Graph.GetTriplesWithPredicateObject(owlDisjointClass, r["class"]));
this.GenerateCaptionedInformation(context, "Disjoint Classes", ts, t => t.Subject.Equals(r["class"]) ? t.Object : t.Subject);
//Show the Class Description
if (r.HasValue("classDescription"))
{
if (r["classDescription"] != null && r["classDescription"].NodeType == NodeType.Literal)
{
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.Write(((ILiteralNode)r["classDescription"]).Value);
context.HtmlWriter.RenderEndTag();
}
}
//End the </div> for the Class
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
}
}
else
{
throw new RdfOutputException("Tried to make a SPARQL Query to get Class Information from the Schema but an unexpected Query Result was returned");
}
}
catch (RdfQueryException queryEx)
{
throw new RdfOutputException("Tried to make a SPARQL Query to get Class Information from the Schema but a Query Error occurred", queryEx);
}
//Show details for each property
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H3);
context.HtmlWriter.WriteEncodedText("Properties");
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Alter our previous getClasses query to get additional details
getProperties.CommandText = "SELECT ?property (SAMPLE(?label) AS ?propertyLabel) (SAMPLE(?description) AS ?propertyDescription) WHERE { { ?property a rdf:Property } UNION { ?property a owl:ObjectProperty } UNION { ?property a owl:DatatypeProperty } FILTER(ISURI(?property)) OPTIONAL { ?property rdfs:label ?label } OPTIONAL { ?property rdfs:comment ?description } } GROUP BY ?property ORDER BY ?property";
try
{
results = context.Graph.ExecuteQuery(getProperties);
if (results is SparqlResultSet)
{
foreach (SparqlResult r in (SparqlResultSet)results)
{
String qname = context.NodeFormatter.Format(r["property"]);
//Use a <div> for each Property
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Class, this.CssClassBox);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Div);
//Add the Anchor to which earlier Property summary links to
context.HtmlWriter.AddAttribute(HtmlTextWriterAttribute.Name, qname);
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.A);
context.HtmlWriter.RenderEndTag();
//Show Basic Property Information
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.H4);
context.HtmlWriter.WriteEncodedText("Property: " + qname);
context.HtmlWriter.RenderEndTag();
//Show "Local Name - Label"
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.Em);
if (TurtleSpecsHelper.IsValidQName(qname))
{
context.HtmlWriter.WriteEncodedText(qname);
}
else
{
Uri temp = new Uri(qname, UriKind.RelativeOrAbsolute);
if (!temp.Fragment.Equals(String.Empty))
{
context.HtmlWriter.WriteEncodedText(temp.Fragment);
}
else
{
#if !SILVERLIGHT
context.HtmlWriter.WriteEncodedText(temp.Segments.Last());
#else
context.HtmlWriter.WriteEncodedText(temp.Segments().Last());
#endif
}
}
context.HtmlWriter.RenderEndTag();
if (r.HasValue("propertyLabel"))
{
if (r["propertyLabel"] != null && r["propertyLabel"].NodeType == NodeType.Literal)
{
context.HtmlWriter.WriteEncodedText(" - ");
context.HtmlWriter.WriteEncodedText(((ILiteralNode)r["propertyLabel"]).Value);
}
}
context.HtmlWriter.WriteLine();
context.HtmlWriter.WriteBreak();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
//Output further information about the property
IEnumerable<Triple> ts;
//Output any Subproperties
ts = context.Graph.GetTriplesWithSubjectPredicate(rdfsSubPropertyOf, r["property"]);
this.GenerateCaptionedInformation(context, "Has Sub Properties", ts, t => t.Object);
//Output Domain and Range
ts = context.Graph.GetTriplesWithSubjectPredicate(r["property"], rdfsDomain);
this.GenerateCaptionedInformation(context, "Has Domain", ts, t => t.Object);
ts = context.Graph.GetTriplesWithSubjectPredicate(r["property"], rdfsRange);
this.GenerateCaptionedInformation(context, "Has Range", ts, t => t.Object);
//Output any Equivalent Properties
ts = context.Graph.GetTriplesWithSubjectPredicate(r["property"], owlEquivalentProperty).Concat(context.Graph.GetTriplesWithPredicateObject(owlEquivalentProperty, r["property"]));
this.GenerateCaptionedInformation(context, "Equivalent Properties", ts, t => t.Subject.Equals(r["property"]) ? t.Object : t.Subject);
//Output any Disjoint Classes
ts = context.Graph.GetTriplesWithSubjectPredicate(r["property"], owlInverseProperty).Concat(context.Graph.GetTriplesWithPredicateObject(owlInverseProperty, r["property"]));
this.GenerateCaptionedInformation(context, "Inverse Property", ts, t => t.Subject.Equals(r["property"]) ? t.Object : t.Subject);
//Show the Property Description
if (r.HasValue("propertyDescription"))
{
if (r["propertyDescription"] != null && r["propertyDescription"].NodeType == NodeType.Literal)
{
context.HtmlWriter.RenderBeginTag(HtmlTextWriterTag.P);
context.HtmlWriter.Write(((ILiteralNode)r["propertyDescription"]).Value);
context.HtmlWriter.RenderEndTag();
}
}
//End the </div> for the Property
context.HtmlWriter.RenderEndTag();
#if !NO_WEB
context.HtmlWriter.WriteLine();
#endif
}
}
else
{
throw new RdfOutputException("Tried to make a SPARQL Query to get Property Information from the Schema but an unexpected Query Result was returned");
}
}
catch (RdfQueryException queryEx)
{
throw new RdfOutputException("Tried to make a SPARQL Query to get Property Information from the Schema but a Query Error occurred", queryEx);
}
//End of Page
context.HtmlWriter.RenderEndTag(); //End Body
context.HtmlWriter.RenderEndTag(); //End Html
}
protected override bool HasTripleInternal(Triple t)
{
if (this._manager is IQueryableGenericIOManager)
{
SparqlParameterizedString queryString = new SparqlParameterizedString("ASK WHERE { @subject @predicate @object}");
queryString.SetParameter("subject", t.Subject);
queryString.SetParameter("predicate", t.Predicate);
queryString.SetParameter("object", t.Object);
Object results = ((IQueryableGenericIOManager)this._manager).Query(queryString.ToString());
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
return rset.ResultsType == SparqlResultsType.Boolean && rset.Result;
}
else
{
return false;
}
}
else
{
throw new dotSesameRepo.RepositoryException("This dotNetRDF Generic Repository does not support detecting whether a given Statement exists in the Store");
}
}
private IEnumerable<SparqlUpdateCommand> GetInsertCommands(Uri entityGraphUri, EntityId entityId, string entityPatterns, IDictionary<string, INode> variables, bool withDelete = true)
{
SparqlParameterizedString modify = new SparqlParameterizedString(
(withDelete ? DeleteEntityGraphCommandText : System.String.Empty) +
(entityId is BlankId ? InsertBlankNodeCommandText : InsertEntityCommandText).Replace("@subject @predicate @object . ", entityPatterns));
modify.SetUri("metaGraph", _metaGraphUri);
modify.SetUri("graph", entityGraphUri);
if (!(entityId is BlankId))
{
modify.SetUri("entityId", entityId.Uri);
}
foreach (var variable in variables)
{
modify.SetParameter(variable.Key, variable.Value);
}
foreach (var command in _parser.ParseFromString(modify).Commands)
{
yield return command;
}
}
public void RunTest(String[] args)
{
if (args.Length < 2)
{
Console.Error.WriteLine("rdfWebDeploy: Error: 2 Arguments are required in order to use the -test mode");
return;
}
if (!File.Exists(args[1]))
{
Console.Error.WriteLine("rdfWebDeploy: Error: Cannot test " + args[1] + " since the file does not exist");
return;
}
Graph g = new Graph();
try
{
FileLoader.Load(g, args[1]);
}
catch (Exception ex)
{
Console.Error.WriteLine("rdfWebDeploy: Error: Cannot parse the configuration file");
Console.Error.WriteLine("rdfWebDeploy: Error: " + ex.Message);
return;
}
Console.WriteLine("rdfWebDeploy: Opened the configuration file successfully");
Graph vocab = new Graph();
try
{
TurtleParser ttlparser = new TurtleParser();
ttlparser.Load(vocab, new StreamReader(Assembly.GetAssembly(typeof(IGraph)).GetManifestResourceStream("VDS.RDF.Configuration.configuration.ttl")));
}
catch (Exception ex)
{
Console.Error.WriteLine("rdfWebDeploy: Error: Cannot parse the configuration vocabulary");
Console.Error.WriteLine("rdfWebDeploy: Error: " + ex.Message);
return;
}
Console.WriteLine("rdfWebDeploy: Loaded the configuration vocabulary successfully");
Console.WriteLine();
Console.WriteLine("rdfWebDeploy: Tests Started...");
Console.WriteLine();
//Now make some tests against it
int warnings = 0, errors = 0;
IInMemoryQueryableStore store = new TripleStore();
store.Add(vocab);
if (g.BaseUri == null) g.BaseUri = new Uri("dotnetrdf:config");
store.Add(g);
Object results;
SparqlResultSet rset;
//Unknown vocabulary term test
Console.WriteLine("rdfWebDeploy: Testing for URIs in the vocabulary namespace which are unknown");
results = store.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + UnknownVocabularyTermsTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The configuration file uses the URI '" + r["term"] + "' for a property/type and this does not appear to be a valid term in the Configuration vocabulary");
errors++;
}
}
Console.WriteLine();
#region General dnr:type Tests
//Missing dnr:type test
Console.WriteLine("rdfWebDeploy: Testing for missing dnr:type properties");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + MissingConfigurationTypeTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Warning: The Node '" + r["s"].ToString() + "' has an rdf:type but no dnr:type which may be needed by the Configuration Loader");
warnings++;
}
}
Console.WriteLine();
//Invalid dnr:type test
Console.WriteLine("rdfWebDeploy: Testing that values given for dnr:type property are literals");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + InvalidTypePropertyTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The node '" + r["s"].ToString() + "' has a dnr:type of '" + r["type"].ToString() + "' which is not given as a string literal");
errors++;
}
}
Console.WriteLine();
//Multiple dnr:type test
Console.WriteLine("rdfWebDeploy: Testing that no object has multiple dnr:type values");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + MultipleTypeTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The node '" + r["s"].ToString() + "' has multiple dnr:type values which is not valid");
errors++;
}
}
Console.WriteLine();
//Unknown Library Types test
Console.WriteLine("rdfWebDeploy: Testing that values given for dnr:type property in the VDS.RDF namespace are valid");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + LibraryTypesTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
Assembly dotnetrdf = Assembly.GetAssembly(typeof(IGraph));
foreach (SparqlResult r in rset)
{
Type t = dotnetrdf.GetType(((ILiteralNode)r["type"]).Value);
if (t == null)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The node '" + r["s"].ToString() + "' has a dnr:type of '" + r["type"].ToString() + "' which does not appear to be a valid type in dotNetRDF");
errors++;
}
}
}
Console.WriteLine();
#endregion
#region dnr:HttpHandler Tests including specific dnr:type Tests
//Bad Handler URI test
Console.WriteLine("rdfWebDeploy: Testing for bad URIs given the rdf:type of dnr:HttpHandler");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + BadHandlerUriTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The Handler node '" + r["s"].ToString() + "' is not a URI of the form <dotnetrdf:/path> which is required for correct detection of handler configuration");
errors++;
}
}
Console.WriteLine();
//Missing Handler type test
Console.WriteLine("rdfWebDeploy: Testing for missing dnr:type for dnr:HttpHandler objects");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + MissingHandlerTypeTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The Handler node '" + r["s"].ToString() + "' has an rdf:type but no dnr:type which is requiring for automated deployment via this tool");
errors++;
}
}
Console.WriteLine();
//Invalid Handler Type test
Console.WriteLine("rdfWebDeploy: Testing that values given for dnr:type for dnr:HttpHandler objects in the VDS.RDF namespace are valid IHttpHandlers");
results = g.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + InvalidHandlerTypeTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
Assembly dotnetrdf = Assembly.GetAssembly(typeof(IGraph));
foreach (SparqlResult r in rset)
{
Type t = dotnetrdf.GetType(((ILiteralNode)r["type"]).Value);
if (t != null)
{
if (!t.GetInterfaces().Any(i => i.Equals(typeof(System.Web.IHttpHandler))))
{
Console.Error.WriteLine("rdfWebDeploy: Error: The node '" + r["s"].ToString() + "' has a dnr:type of '" + r["type"].ToString() + "' which does not appear to be a valid IHttpHandler implementation in dotNetRDF");
errors++;
}
}
}
}
Console.WriteLine();
#endregion
#region Property Tests
//Range test
Console.WriteLine("rdfWebDeploy: Testing for bad ranges for properties");
results = store.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + InvalidRangeTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
SparqlParameterizedString hasValidRange = new SparqlParameterizedString();
hasValidRange.QueryText = RdfWebDeployHelper.NamespacePrefixes + ValidRangeTest;
hasValidRange.SetParameter("property", r["property"]);
hasValidRange.SetParameter("s", r["s"]);
Object temp = store.ExecuteQuery(hasValidRange.ToString());
if (temp is SparqlResultSet)
{
if (!((SparqlResultSet)temp).Result)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The Node '" + r["s"].ToString() + "' has a value for the property '" + r["property"].ToString() + "' which is '" + r["obj"].ToString() + "' which does not appear to be valid for the range of this property which is '" + r["range"].ToString() + "'");
errors++;
}
}
}
}
Console.WriteLine();
//Domain test
Console.WriteLine("rdfWebDeploy: Testing for bad domains for properties");
results = store.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + InvalidDomainTest);
if (results is SparqlResultSet)
{
rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
SparqlParameterizedString hasValidDomain = new SparqlParameterizedString();
hasValidDomain.QueryText = RdfWebDeployHelper.NamespacePrefixes + ValidDomainTest;
hasValidDomain.SetParameter("property", r["property"]);
hasValidDomain.SetParameter("s", r["s"]);
Object temp = store.ExecuteQuery(hasValidDomain.ToString());
if (temp is SparqlResultSet)
{
if (!((SparqlResultSet)temp).Result)
{
Console.Error.WriteLine("rdfWebDeploy: Error: The Node '" + r["s"].ToString() + "' has a value for the property '" + r["property"].ToString() + "' and the type given is '" + r["type"].ToString() + "' which does not match the domain of this property which is '" + r["domain"].ToString() + "'");
errors++;
}
}
}
}
Console.WriteLine();
#endregion
#region Clear Text Password Tests
Console.WriteLine("rdfWebDeploy: Testing for clear text passwords used with dnr:password property");
results = store.ExecuteQuery(RdfWebDeployHelper.NamespacePrefixes + ClearTextPasswordTest);
if (results is SparqlResultSet)
{
foreach (SparqlResult r in (SparqlResultSet)results)
{
Console.Error.WriteLine("rdfWebDeploy: Warning: The Node '" + r["s"].ToString() + "' has a value for the dnr:password property specified as a Literal in clear text. It is recommended that you specify any passwords as AppSetting URIs e.g. <appsetting:MyPassword> and then create an AppSetting in the <appSettings> section of your Web.config file to store your password. The Web.config file can then have the <appSettings> section encrypted to help protect your password");
warnings++;
}
}
Console.WriteLine();
#endregion
//Show Test Results
Console.WriteLine("rdfWedDeploy: Tests Completed - " + warnings + " Warning(s) - " + errors + " Error(s)");
}
public static IEnumerable<NamespaceTerm> LoadNamespaceTerms(String namespaceUri)
{
//Don't load if already loaded
if (_loadedNamespaces.Contains(namespaceUri)) return GetNamespaceTerms(namespaceUri);
try
{
Graph g = new Graph();
try
{
UriLoader.Load(g, new Uri(namespaceUri));
}
catch
{
//Try and load from our local copy if there is one
String prefix = GetDefaultPrefix(namespaceUri);
if (!prefix.Equals(String.Empty))
{
Stream localCopy = Assembly.GetExecutingAssembly().GetManifestResourceStream("rdfEditor.AutoComplete.Vocabularies." + prefix + ".ttl");
if (localCopy != null)
{
TurtleParser ttlparser = new TurtleParser();
ttlparser.Load(g, new StreamReader(localCopy));
}
}
}
List<NamespaceTerm> terms = new List<NamespaceTerm>();
String termUri;
//UriNode rdfType = g.CreateUriNode(new Uri(RdfSpecsHelper.RdfType));
IUriNode rdfsClass = g.CreateUriNode(new Uri(NamespaceMapper.RDFS + "Class"));
IUriNode rdfsLabel = g.CreateUriNode(new Uri(NamespaceMapper.RDFS + "label"));
IUriNode rdfsComment = g.CreateUriNode(new Uri(NamespaceMapper.RDFS + "comment"));
IUriNode rdfProperty = g.CreateUriNode(new Uri(NamespaceMapper.RDF + "Property"));
IUriNode rdfsDatatype = g.CreateUriNode(new Uri(NamespaceMapper.RDFS + "Datatype"));
SparqlParameterizedString queryString = new SparqlParameterizedString();
queryString.CommandText = "SELECT ?term STR(?label) AS ?RawLabel STR(?comment) AS ?RawComment WHERE { {{?term a @class} UNION {?term a @property} UNION {?term a @datatype}} OPTIONAL {?term @label ?label} OPTIONAL {?term @comment ?comment} }";
queryString.SetParameter("class", rdfsClass);
queryString.SetParameter("property", rdfProperty);
queryString.SetParameter("datatype", rdfsDatatype);
queryString.SetParameter("label", rdfsLabel);
queryString.SetParameter("comment", rdfsComment);
Object results = g.ExecuteQuery(queryString.ToString());
if (results is SparqlResultSet)
{
foreach (SparqlResult r in ((SparqlResultSet)results))
{
termUri = r["term"].ToString();
if (termUri.StartsWith(namespaceUri))
{
//Use the Comment as the label if available
if (r.HasValue("RawComment"))
{
if (r["RawComment"] != null)
{
terms.Add(new NamespaceTerm(namespaceUri, termUri.Substring(namespaceUri.Length), r["RawComment"].ToString()));
continue;
}
}
//Use the Label as the label if available
if (r.HasValue("RawLabel"))
{
if (r["RawLabel"] != null)
{
terms.Add(new NamespaceTerm(namespaceUri, termUri.Substring(namespaceUri.Length), r["RawLabel"].ToString()));
continue;
}
}
//Otherwise no label
terms.Add(new NamespaceTerm(namespaceUri, termUri.Substring(namespaceUri.Length)));
}
}
}
lock (_terms)
{
terms.RemoveAll(t => _terms.Contains(t));
_terms.AddRange(terms.Distinct());
}
}
catch
{
//Ignore Exceptions - just means we won't have those namespace terms available
}
try
{
_loadedNamespaces.Add(namespaceUri);
}
catch (NullReferenceException)
{
//For some reason .Net sometimes throws a NullReferenceException here which we shall ignore
}
return GetNamespaceTerms(namespaceUri);
}