Ejemplo n.º 1
0
        public void InteropSemWebInMemoryStoreConversion()
        {
            //Set up a Store and load 3 Graphs into it
            TripleStore store = new TripleStore();
            Graph g = new Graph();
            FileLoader.Load(g, "InferenceTest.ttl");
            store.Add(g);
            g = new Graph();
            FileLoader.Load(g, "Turtle.ttl");
            store.Add(g);
            g = new Graph();
            g.Assert(new Triple(g.CreateUriNode(new Uri("http://example.org/#this")), g.CreateUriNode(new Uri(RdfSpecsHelper.RdfType)), g.CreateUriNode(new Uri("http://example.org/Graph"))));
            store.Add(g);

            InMemoryStoreSource source = new InMemoryStoreSource(store);

            //Put this all into a SemWeb MemoryStore
            MemoryStore mem = new MemoryStore();
            source.Select(mem);

            SemWebConsolePrinter printer = new SemWebConsolePrinter();
            mem.Select(printer);

            //Read it back into a dotNetRDF TripleStore
            InMemoryStoreSource source2 = new InMemoryStoreSource(new TripleStore());
            mem.Select(source2);

            //Check the two stores are equivalent
            IInMemoryQueryableStore store2 = source2.Store;
            foreach (IGraph graph in store.Graphs)
            {
                String baseUri = (graph.BaseUri == null) ? String.Empty : graph.BaseUri.ToString();
                Assert.IsTrue(store2.HasGraph(graph.BaseUri), "Second Store has Graph '" + baseUri + "' missing");

                Assert.AreEqual(graph, store2.Graph(graph.BaseUri), "Graph '" + baseUri + "' was not the same Graph in both Stores");
            }
            
        }
Ejemplo n.º 2
0
        public void InteropSemWebInMemoryStoreSource()
        {
            MicrosoftSqlStoreManager mssql = new MicrosoftSqlStoreManager("dotnetrdf_experimental", "sa", "20sQl08");
            InMemoryStoreSource source = new InMemoryStoreSource(new SqlTripleStore(mssql));

            N3Writer writer = new N3Writer(Console.Out);

            Console.WriteLine("Outputting all Triples of the form ?s rdf:type ?type");
            Statement template = new Statement(new Variable(), new Entity(RdfSpecsHelper.RdfType), new Variable());
            source.Select(template, writer);
            Console.WriteLine();
            Console.WriteLine();

            Console.WriteLine("Outputting all Triples of the form ?s rdf:type ?car");
            template = new Statement(new Variable(), new Entity(RdfSpecsHelper.RdfType), new Entity("http://example.org/vehicles/Car"));
            source.Select(template, writer);
            Console.WriteLine();
            Console.WriteLine();

            Console.WriteLine("Outputting all Triples for Cars and Planes");
            SelectFilter filter = new SelectFilter();
            filter.Predicates = new Entity[] { new Entity(RdfSpecsHelper.RdfType) };
            filter.Objects = new Entity[] { new Entity("http://example.org/vehicles/Car"), new Entity("http://example.org/vehicles/Plane") };
            source.Select(filter, writer);
            Console.WriteLine();
            Console.WriteLine();

            Console.WriteLine("Outputting the Speeds of all Cards");
            Variable car = new Variable("car");
            Statement[] pattern = new Statement[] 
            {
                new Statement(car, new Entity(RdfSpecsHelper.RdfType), new Entity("http://example.org/vehicles/Car")),
                new Statement(car, new Entity("http://example.org/vehicles/Speed"), new Variable("speed"))
            };
            source.Query(pattern, new QueryOptions(), new SemWebResultsConsolePrinter());
            Console.WriteLine();

            writer.Close();
        }