public void SerializeComplexClass()
{
object parliamentaryIncumbency = createClassInstance("ParliamentaryIncumbency");
parliamentaryIncumbency.GetType().GetProperty("Id").SetValue(parliamentaryIncumbency, new Uri("http://example.org/123"));
parliamentaryIncumbency.GetType().GetProperty("ParliamentaryIncumbencyStartDate").SetValue(parliamentaryIncumbency, (DateTimeOffset?)DateTimeOffset.UtcNow.Date);
object member = createClassInstance("Member");
parliamentaryIncumbency.GetType().GetProperty("ParliamentaryIncumbencyHasMember").SetValue(parliamentaryIncumbency, member);
object contactPoint1 = createClassInstance("ContactPoint");
object contactPoint2 = createClassInstance("ContactPoint");
IEnumerable <object> values = new [] { contactPoint1, contactPoint2 }.Select(c => c);
MethodInfo castMethodValues = typeof(Enumerable).GetMethod("Cast").MakeGenericMethod(contactPoint1.GetType());
object castValues = castMethodValues.Invoke(values, new object[] { values });
parliamentaryIncumbency.GetType().GetProperty("ParliamentaryIncumbencyHasContactPoint").SetValue(parliamentaryIncumbency, castValues);
member.GetType().GetProperty("Id").SetValue(member, new Uri("http://example.org/member"));
member.GetType().GetProperty("PersonFamilyName").SetValue(member, "name");
contactPoint1.GetType().GetProperty("Id").SetValue(contactPoint1, new Uri("http://example.org/contact1"));
contactPoint1.GetType().GetProperty("FaxNumber").SetValue(contactPoint1, "fax1");
contactPoint2.GetType().GetProperty("Id").SetValue(contactPoint2, new Uri("http://example.org/contact2"));
contactPoint2.GetType().GetProperty("FaxNumber").SetValue(contactPoint2, "fax2");
RdfSerializer serializer = new RdfSerializer();
Graph result = serializer.Serialize(new BaseResource[] { parliamentaryIncumbency as BaseResource }, compilerResults.CompiledAssembly.GetTypes(), SerializerOptions.ExcludeRdfType);
Assert.AreEqual(result.Triples.Count, 7);
}
public ActionResult GraphML(int id)
{
List <RouteItem> routes = getAllRoutes(id);
// Using Parliament nuget packages, map user-defined classes into ontology-aligned interfaces which all implement iResource interface
// This allows us to work with IGraph objects
IEnumerable <ProcedureRoute> IRoutes = routes.Select(r => r.GiveMeMappedObject());
RdfSerializer serializer = new RdfSerializer();
IGraph graph = serializer.Serialize(IRoutes, typeof(ProcedureRoute).Assembly.GetTypes());
SparqlQueryParser parser = new SparqlQueryParser();
// Nodes
SparqlQuery q1 = parser.ParseFromString("PREFIX : <https://id.parliament.uk/schema/> SELECT ?step ?stepName WHERE {?step a :ProcedureStep; :procedureStepName ?stepName. }");
SparqlResultSet nodes = (SparqlResultSet)graph.ExecuteQuery(q1);
// Edges
SparqlQuery q2 = parser.ParseFromString("PREFIX : <https://id.parliament.uk/schema/> SELECT ?route ?fromStep ?toStep WHERE {?route a :ProcedureRoute; :procedureRouteIsFromProcedureStep ?fromStep; :procedureRouteIsToProcedureStep ?toStep.}");
SparqlResultSet edges = (SparqlResultSet)graph.ExecuteQuery(q2);
// Create GraphML
StringWriter sw = new Utf8StringWriter();
XmlWriterSettings xws = new XmlWriterSettings();
xws.OmitXmlDeclaration = false;
xws.Indent = true;
using (XmlWriter xw = XmlWriter.Create(sw, xws))
{
XNamespace ns = "http://graphml.graphdrawing.org/xmlns";
XNamespace xsi = "http://www.w3.org/2001/XMLSchema-instance";
XNamespace xsiSchemaLocation = "http://graphml.graphdrawing.org/xmlns http://www.yworks.com/xml/schema/graphml/1.1/ygraphml.xsd";
// For yEd, not essential to GraphML. But good for verification
XNamespace y = "http://www.yworks.com/xml/graphml";
XDocument doc = new XDocument(
new XDeclaration("1.0", "UTF-8", "yes"),
new XElement(ns + "graphml",
new XAttribute(XNamespace.Xmlns + "xsi", xsi),
new XAttribute(xsi + "schemaLocation", xsiSchemaLocation),
new XAttribute(XNamespace.Xmlns + "y", y),
new XElement(ns + "key", new XAttribute("for", "node"), new XAttribute("id", "d0"), new XAttribute("yfiles.type", "nodegraphics")),
new XElement(ns + "graph", new XAttribute("id", "G"), new XAttribute("edgedefault", "directed"),
nodes.Select(n => new XElement(ns + "node", new XAttribute("id", n["step"]), new XElement(ns + "data", new XAttribute("name", n["stepName"]), new XAttribute("key", "d0"), new XElement(y + "ShapeNode", new XElement(y + "NodeLabel", new XAttribute("visible", "true"), new XAttribute("autoSizePolicy", "content"), new XText(n["stepName"].ToString())))))),
edges.Select(e => new XElement(ns + "edge", new XAttribute("id", e["route"]), new XAttribute("source", e["fromStep"]), new XAttribute("target", e["toStep"])))
)));
doc.WriteTo(xw);
}
return(Content(sw.ToString(), "application/xml"));
}
public void SerializeSimpleClass()
{
string houseName = "test house";
object house = createClassInstance("House");
house.GetType().GetProperty("Id").SetValue(house, new Uri("http://example.org/123"));
house.GetType().GetProperty("HouseName").SetValue(house, houseName);
RdfSerializer serializer = new RdfSerializer();
Graph result = serializer.Serialize(new BaseResource[] { house as BaseResource }, compilerResults.CompiledAssembly.GetTypes(), SerializerOptions.ExcludeRdfType);
Assert.AreEqual(result.Triples.Count, 1);
Assert.AreEqual(result.Triples.SingleOrDefault().Object.ToString(), houseName);
}
private IEnumerable <BaseResource> deserializeTarget(IGraph target)
{
IEnumerable <BaseResource> result = null;
try
{
logger.Verbose("Deserialize target");
RdfSerializer serializer = new RdfSerializer();
result = serializer.Deserialize(target, modelTypes, new Uri(schemaNamespace));
}
catch (Exception e)
{
logger.Exception(e);
}
return(result);
}
public static object Execute(ODataQueryOptions options, string sparqlEndpoint, string nameSpace)
{
Uri NamespaceUri = new Uri(nameSpace);
string queryString = new SparqlBuilder(options, NamespaceUri).BuildSparql();
IGraph graph = null;
using (var connector = new SparqlConnector(new Uri(sparqlEndpoint)))
{
graph = connector.Query(queryString) as IGraph;
}
RdfSerializer serializer = new RdfSerializer();
IEnumerable <BaseResource> ontologyInstances = serializer.Deserialize(graph, typeof(Person).Assembly, NamespaceUri);
return(ontologyInstances);
}
private IGraph serializeSource(BaseResource[] source)
{
Graph result = null;
try
{
logger.Verbose("Serializing source");
RdfSerializer serializer = new RdfSerializer();
result = serializer.Serialize(source, modelTypes, SerializerOptions.ExcludeRdfType);
result.NamespaceMap.AddNamespace("parl", new Uri(schemaNamespace));
}
catch (Exception e)
{
logger.Exception(e);
}
return(result);
}
public static object Execute(ODataQueryOptions options, string sparqlEndpoint, string nameSpace)
{
Uri namespaceUri = new Uri(nameSpace);
string queryString = new SparqlBuilder(options, namespaceUri).BuildSparql();
if (options.Count != null && options.Count.Value)
{
string selectStr;
var entitySeg = options.Context.Path.Segments.Last() as EntitySetSegment;;
if (entitySeg != null)
{
selectStr = $" SELECT (count(?{entitySeg.EntitySet.Name}) as ?count) ";
}
else
{
var seg = options.Context.Path.Segments.Last() as NavigationPropertySegment;
selectStr = $" SELECT (count(?{seg.NavigationProperty.Name}) as ?count) ";
}
queryString = queryString.Substring(0, queryString.IndexOf("CONSTRUCT")) +
selectStr + queryString.Substring(queryString.IndexOf("WHERE"));
string count = null;
using (var connector = new SparqlConnector(new Uri(sparqlEndpoint)))
{
var results = connector.Query(queryString) as SparqlResultSet;
foreach (var result in results)
{
count = (result["count"] as LiteralNode).Value;
}
}
return(count);
}
else
{
IGraph graph = null;
using (var connector = new SparqlConnector(new Uri(sparqlEndpoint)))
{
graph = connector.Query(queryString) as IGraph;
}
RdfSerializer serializer = new RdfSerializer();
IEnumerable <BaseResource> ontologyInstances = serializer.Deserialize(graph, typeof(Person).Assembly, namespaceUri);
return(ontologyInstances);
}
}
public void SerializeComplexClassWithTwoOccurancesOfTheSameInstance()
{
object procedureRoute = createClassInstance("ProcedureRoute");
procedureRoute.GetType().GetProperty("Id").SetValue(procedureRoute, new Uri("http://example.org/123"));
object procedure = createClassInstance("Procedure");
procedure.GetType().GetProperty("Id").SetValue(procedure, new Uri("http://example.org/procedure"));
IEnumerable <object> valuesProcedure = new[] { procedure }.Select(c => c);
MethodInfo castMethodValuesProcedure = typeof(Enumerable).GetMethod("Cast").MakeGenericMethod(procedure.GetType());
object castValuesProcedure = castMethodValuesProcedure.Invoke(valuesProcedure, new object[] { valuesProcedure });
procedureRoute.GetType().GetProperty("ProcedureRouteHasProcedure").SetValue(procedureRoute, castValuesProcedure);
object fromStep = createClassInstance("ProcedureStep");
object toStep = createClassInstance("ProcedureStep");
IEnumerable <object> valuesFrom = new[] { fromStep }.Select(c => c);
MethodInfo castMethodValuesFrom = typeof(Enumerable).GetMethod("Cast").MakeGenericMethod(fromStep.GetType());
object castValuesFrom = castMethodValuesFrom.Invoke(valuesFrom, new object[] { valuesFrom });
IEnumerable <object> valuesTo = new[] { toStep }.Select(c => c);
MethodInfo castMethodValuesTo = typeof(Enumerable).GetMethod("Cast").MakeGenericMethod(toStep.GetType());
object castValuesTo = castMethodValuesTo.Invoke(valuesTo, new object[] { valuesTo });
procedureRoute.GetType().GetProperty("ProcedureRouteIsFromProcedureStep").SetValue(procedureRoute, castValuesFrom);
procedureRoute.GetType().GetProperty("ProcedureRouteIsToProcedureStep").SetValue(procedureRoute, castValuesTo);
fromStep.GetType().GetProperty("Id").SetValue(fromStep, new Uri("http://example.org/step"));
toStep.GetType().GetProperty("Id").SetValue(toStep, new Uri("http://example.org/step"));
object precludedProcedureRoute = createClassInstance("PrecludedProcedureRoute");
precludedProcedureRoute.GetType().GetProperty("Id").SetValue(precludedProcedureRoute, new Uri("http://example.org/123"));
IEnumerable <object> valuesPrecluded = new[] { precludedProcedureRoute }.Select(c => c);
MethodInfo castMethodValuesPrecluded = typeof(Enumerable).GetMethod("Cast").MakeGenericMethod(precludedProcedureRoute.GetType());
object castValuesPrecluded = castMethodValuesPrecluded.Invoke(valuesTo, new object[] { valuesPrecluded });
fromStep.GetType().GetProperty("ProcedureStepPrecludesPrecludedProcedureRoute").SetValue(fromStep, castValuesPrecluded);
RdfSerializer serializer = new RdfSerializer();
Graph result = serializer.Serialize(new BaseResource[] { procedureRoute as BaseResource }, compilerResults.CompiledAssembly.GetTypes(), SerializerOptions.ExcludeRdfType);
Assert.AreEqual(result.Triples.Count, 4);
}
