public void SparqlViewDescribe1()
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("DESCRIBE <http://example.org/vehicles/FordFiesta>", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "resources\\InferenceTest.ttl");
g.BaseUri = null;
store.Add(g, true);
Thread.Sleep(500);
if (view.Triples.Count == 0)
{
view.UpdateView();
}
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.True(view.Triples.Count > 0, "View should have updated to contain some Triples");
}
public void SparqlViewSelect1()
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("SELECT ?s (<http://example.org/vehicles/TurbochargedSpeed>) AS ?p (?speed * 1.25) AS ?o WHERE { GRAPH ?g { ?s <http://example.org/vehicles/Speed> ?speed } }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "resources\\InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(500);
if (view.Triples.Count == 0)
{
view.UpdateView();
}
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.True(view.Triples.Count > 0, "View should have updated to contain some Triples");
}
public void SparqlViewConstruct1()
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("CONSTRUCT { ?s ?p ?o } WHERE { GRAPH ?g { ?s ?p ?o . FILTER(IsLiteral(?o)) } }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "resources\\InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(1000);
if (view.Triples.Count == 0)
{
view.UpdateView();
}
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.True(view.Triples.Count > 0, "View should have updated to contain some Triples");
}
public void SparqlViewGraphScope1()
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("CONSTRUCT { ?s ?p ?o } FROM <http://example.org/data> WHERE { ?s ?p ?o . FILTER(IsLiteral(?o)) }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "resources\\InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(500);
if (view.Triples.Count == 0)
{
view.UpdateView();
}
int lastCount = view.Triples.Count;
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.True(view.Triples.Count > 0, "View should have updated to contain some Triples");
//Load another Graph with a different URI into the Store
Graph h = new Graph();
h.BaseUri = new Uri("http://example.org/2");
FileLoader.Load(h, "resources\\Turtle.ttl");
store.Add(h);
Thread.Sleep(500);
view.UpdateView();
Assert.True(view.Triples.Count == lastCount, "View should not have changed since the added Graph is not in the set of Graphs over which the query operates");
//Remove this Graph and check the View still doesn't change
store.Remove(h.BaseUri);
Thread.Sleep(500);
view.UpdateView();
Assert.True(view.Triples.Count == lastCount, "View should not have changed since the removed Graph is not in the set of Graphs over which the query operates");
}
public void SparqlViewAndReasonerInteraction1()
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("CONSTRUCT { ?s a ?type } WHERE { GRAPH ?g { ?s a ?type } }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "resources\\InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(500);
if (view.Triples.Count == 0)
{
view.UpdateView();
}
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Console.WriteLine();
Assert.True(view.Triples.Count > 0, "View should have updated to contain some Triples");
int lastCount = view.Triples.Count;
//Apply an RDFS reasoner
StaticRdfsReasoner reasoner = new StaticRdfsReasoner();
reasoner.Initialise(g);
store.AddInferenceEngine(reasoner);
Thread.Sleep(200);
if (view.Triples.Count == lastCount)
{
view.UpdateView();
}
Console.WriteLine("SPARQL View Populated after Reasoner added");
TestTools.ShowGraph(view);
}
public void SparqlViewDescribe()
{
try
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("DESCRIBE <http://example.org/vehicles/FordFiesta>", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(200);
if (view.Triples.Count == 0) view.UpdateView();
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.IsTrue(view.Triples.Count > 0, "View should have updated to contain some Triples");
}
catch (RdfQueryException queryEx)
{
TestTools.ReportError("Query Error", queryEx, true);
}
catch (RdfException ex)
{
TestTools.ReportError("Error", ex, true);
}
}
public void SparqlViewGraphScope()
{
try
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("CONSTRUCT { ?s ?p ?o } FROM <http://example.org/data> WHERE { ?s ?p ?o . FILTER(IsLiteral(?o)) }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(200);
if (view.Triples.Count == 0) view.UpdateView();
int lastCount = view.Triples.Count;
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Assert.IsTrue(view.Triples.Count > 0, "View should have updated to contain some Triples");
//Load another Graph with a different URI into the Store
Graph h = new Graph();
h.BaseUri = new Uri("http://example.org/2");
FileLoader.Load(h, "Turtle.ttl");
store.Add(h);
Thread.Sleep(200);
view.UpdateView();
Assert.IsTrue(view.Triples.Count == lastCount, "View should not have changed since the added Graph is not in the set of Graphs over which the query operates");
//Remove this Graph and check the View still doesn't change
store.Remove(h.BaseUri);
Thread.Sleep(200);
view.UpdateView();
Assert.IsTrue(view.Triples.Count == lastCount, "View should not have changed since the removed Graph is not in the set of Graphs over which the query operates");
}
catch (RdfQueryException queryEx)
{
TestTools.ReportError("Query Error", queryEx, true);
}
catch (RdfException ex)
{
TestTools.ReportError("Error", ex, true);
}
}
public void SparqlViewAndReasonerInteraction()
{
try
{
TripleStore store = new TripleStore();
SparqlView view = new SparqlView("CONSTRUCT { ?s a ?type } WHERE { ?s a ?type }", store);
view.BaseUri = new Uri("http://example.org/view");
store.Add(view);
Console.WriteLine("SPARQL View Empty");
TestTools.ShowGraph(view);
Console.WriteLine();
//Load a Graph into the Store to cause the SPARQL View to update
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/data");
store.Add(g);
Thread.Sleep(200);
if (view.Triples.Count == 0) view.UpdateView();
Console.WriteLine("SPARQL View Populated");
TestTools.ShowGraph(view);
Console.WriteLine();
Assert.IsTrue(view.Triples.Count > 0, "View should have updated to contain some Triples");
int lastCount = view.Triples.Count;
//Apply an RDFS reasoner
StaticRdfsReasoner reasoner = new StaticRdfsReasoner();
reasoner.Initialise(g);
store.AddInferenceEngine(reasoner);
Thread.Sleep(200);
if (view.Triples.Count == lastCount) view.UpdateView();
Console.WriteLine("SPARQL View Populated after Reasoner added");
TestTools.ShowGraph(view);
}
catch (RdfQueryException queryEx)
{
TestTools.ReportError("Query Error", queryEx, true);
}
catch (RdfException ex)
{
TestTools.ReportError("Error", ex, true);
}
}