public void StorageVirtuosoLoadGraphWithNullHandler()
{
NTriplesFormatter formatter = new NTriplesFormatter();
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
Assert.IsNotNull(manager);
Console.WriteLine("Got the Virtuoso Manager OK");
//Add the Test Date to Virtuoso
Graph testData = new Graph();
FileLoader.Load(testData, "resources\\Turtle.ttl");
testData.BaseUri = new Uri("http://example.org/virtuoso/tests/null");
manager.SaveGraph(testData);
Console.WriteLine("Saved the Test Data to Virtuoso");
NullHandler handler = new NullHandler();
manager.LoadGraph(handler, testData.BaseUri);
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoBlankNodeDelete()
{
//First ensure data is present in the store
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
manager.DeleteGraph("http://localhost/deleteBNodeTest");
Graph g = new Graph();
Triple t = new Triple(g.CreateBlankNode(), g.CreateUriNode("rdf:type"), g.CreateUriNode(UriFactory.Create("http://example.org/object")));
g.Assert(t);
manager.UpdateGraph("http://localhost/deleteBNodeTest", t.AsEnumerable(), null);
Object results = manager.Query("ASK WHERE { GRAPH <http://localhost/deleteBNodeTest> { ?s a <http://example.org/object> } }");
if (results is SparqlResultSet)
{
TestTools.ShowResults(results);
Assert.IsTrue(((SparqlResultSet)results).Result, "Expected a true result");
//Now we've ensured data is present we can first load the graph and then try to delete the given triple
Graph h = new Graph();
manager.LoadGraph(h, "http://localhost/deleteBNodeTest");
Assert.AreEqual(g, h, "Graphs should be equal");
//Then we can go ahead and delete the triples from this graph
manager.UpdateGraph("http://localhost/deleteBNodeTest", null, h.Triples);
Graph i = new Graph();
manager.LoadGraph(i, "http://localhost/deleteBNodeTest");
Assert.IsTrue(i.IsEmpty, "Graph should be empty");
Assert.AreNotEqual(h, i);
Assert.AreNotEqual(g, i);
}
else
{
Assert.Fail("Didn't get a SPARQL Result Set as expected");
}
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoRelativeUris()
{
VirtuosoManager virtuoso = VirtuosoTest.GetConnection();
try
{
//Load in our Test Graph
Graph g = new Graph();
g.LoadFromEmbeddedResource("VDS.RDF.Configuration.configuration.ttl");
g.BaseUri = new Uri("/storage/virtuoso/relative", UriKind.Relative);
virtuoso.SaveGraph(g);
// Load it back out again
Graph h = new Graph();
virtuoso.LoadGraph(h, g.BaseUri);
Assert.IsFalse(h.IsEmpty, "Graph loaded via relative URI should not be empty");
Assert.AreEqual(g, h);
Console.WriteLine("Loading with relative URI works OK");
Console.WriteLine();
// Load it back out using marshalled URI
Uri u = new Uri("virtuoso-relative:/storage/virtuoso/relative");
h = new Graph();
virtuoso.LoadGraph(h, u);
Assert.IsFalse(h.IsEmpty, "Graph loaded via marshalled URI should not be empty");
Assert.AreEqual(g, h);
Console.WriteLine("Loading with marshalled URI works OK");
}
finally
{
virtuoso.Dispose();
}
}
public void StorageVirtuosoUpdateGraph()
{
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
Assert.IsNotNull(manager);
Console.WriteLine("Got the Virtuoso Manager OK");
//Make some Triples to add to the Graph
Graph g = new Graph();
g.BaseUri = new Uri("http://example.org/");
g.NamespaceMap.AddNamespace(String.Empty, g.BaseUri);
List <Triple> additions = new List <Triple>();
additions.Add(new Triple(g.CreateUriNode(":seven"), g.CreateUriNode("rdf:type"), g.CreateUriNode(":addedTriple")));
List <Triple> removals = new List <Triple>();
removals.Add(new Triple(g.CreateUriNode(":five"), g.CreateUriNode(":property"), g.CreateUriNode(":value")));
//Try to Update
manager.UpdateGraph(g.BaseUri, additions, removals);
Console.WriteLine("Updated OK");
//Retrieve to see what's in the Graph
Graph h = new Graph();
manager.LoadGraph(h, g.BaseUri);
Console.WriteLine("Retrieved OK");
Console.WriteLine("Graph contents are:");
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
Assert.IsTrue(h.Triples.Contains(additions[0]), "Added Triple should be in the retrieved Graph");
Assert.IsFalse(h.Triples.Contains(removals[0]), "Removed Triple should not be in the retrieved Graph");
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoQueryRegex()
{
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
//Create the Test Graph
Graph g = new Graph();
g.BaseUri = new Uri("http://example.org/VirtuosoRegexTest");
INode subj1 = g.CreateUriNode(new Uri("http://example.org/one"));
INode subj2 = g.CreateUriNode(new Uri("http://example.org/two"));
INode pred = g.CreateUriNode(new Uri("http://example.org/predicate"));
INode obj1 = g.CreateLiteralNode("search term");
INode obj2 = g.CreateLiteralNode("no term");
g.Assert(subj1, pred, obj1);
g.Assert(subj2, pred, obj2);
manager.SaveGraph(g);
Graph h = new Graph();
manager.LoadGraph(h, g.BaseUri);
Assert.AreEqual(g, h, "Graphs should be equal");
String query = "SELECT * FROM <" + g.BaseUri.ToString() + "> WHERE { ?s ?p ?o . FILTER(REGEX(STR(?o), 'search', 'i')) }";
SparqlResultSet results = manager.Query(query) as SparqlResultSet;
if (results == null)
{
Assert.Fail("Did not get a Result Set as expected");
}
Console.WriteLine("Results obtained via VirtuosoManager.Query()");
TestTools.ShowResults(results);
Assert.AreEqual(1, results.Count);
SparqlRemoteEndpoint endpoint = new SparqlRemoteEndpoint(new Uri("http://localhost:8890/sparql"));
SparqlResultSet results2 = endpoint.QueryWithResultSet(query);
Console.WriteLine("Results obtained via SparqlRemoteEndpoint.QueryWithResultSet()");
TestTools.ShowResults(results2);
Assert.AreEqual(1, results2.Count);
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoEncoding()
{
//Get the Virtuoso Manager
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
//Make the Test Graph
Graph g = new Graph();
g.BaseUri = new Uri("http://example.org/VirtuosoEncodingTest");
IUriNode encodedString = g.CreateUriNode(new Uri("http://example.org/encodedString"));
ILiteralNode encodedText = g.CreateLiteralNode("William Jørgensen");
g.Assert(new Triple(g.CreateUriNode(), encodedString, encodedText));
Console.WriteLine("Test Graph created OK");
TestTools.ShowGraph(g);
//Save to Virtuoso
Console.WriteLine();
Console.WriteLine("Saving to Virtuoso");
manager.SaveGraph(g);
//Load back from Virtuoso
Console.WriteLine();
Console.WriteLine("Retrieving from Virtuoso");
Graph h = new Graph();
manager.LoadGraph(h, new Uri("http://example.org/VirtuosoEncodingTest"));
TestTools.ShowGraph(h);
Assert.AreEqual(g, h, "Graphs should be equal");
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public override void Write(Stream fs, Uri graph, RdfSerializationFormat format)
{
using (VirtuosoManager manager = new VirtuosoManager(CreateConnectionString()))
{
using (VDS.RDF.Graph g = new VDS.RDF.Graph())
{
manager.LoadGraph(g, graph);
StreamWriter streamWriter = new StreamWriter(fs, Encoding.UTF8);
switch (format)
{
case RdfSerializationFormat.RdfXml:
{
VDS.RDF.Writing.RdfXmlWriter xmlWriter = new VDS.RDF.Writing.RdfXmlWriter();
xmlWriter.Save(g, streamWriter);
break;
}
}
}
}
}
public void StorageVirtuosoLoadGraph()
{
NTriplesFormatter formatter = new NTriplesFormatter();
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
Assert.IsNotNull(manager);
Console.WriteLine("Got the Virtuoso Manager OK");
//Add the Test Date to Virtuoso
Graph testData = new Graph();
FileLoader.Load(testData, @"resources\MergePart1.ttl");
testData.BaseUri = new Uri("http://localhost/VirtuosoTest");
manager.SaveGraph(testData);
testData = new Graph();
FileLoader.Load(testData, @"resources\Turtle.ttl");
testData.BaseUri = new Uri("http://localhost/TurtleImportTest");
manager.SaveGraph(testData);
Console.WriteLine("Saved the Test Data to Virtuoso");
//Try loading it back again
Graph g = new Graph();
manager.LoadGraph(g, "http://localhost/VirtuosoTest");
Console.WriteLine("Load Operation completed without errors");
Assert.AreNotEqual(0, g.Triples.Count);
foreach (Triple t in g.Triples)
{
Console.WriteLine(t.ToString(formatter));
}
Console.WriteLine();
Console.WriteLine("Loading a larger Graph");
Graph h = new Graph();
manager.LoadGraph(h, "http://localhost/TurtleImportTest");
Console.WriteLine("Load operation completed without errors");
Assert.AreNotEqual(0, h.Triples.Count);
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString(formatter));
}
Console.WriteLine();
Console.WriteLine("Loading same Graph again to ensure loading is repeatable");
Graph i = new Graph();
manager.LoadGraph(i, "http://localhost/TurtleImportTest");
Console.WriteLine("Load operation completed without errors");
Assert.AreEqual(h.Triples.Count, i.Triples.Count);
Assert.AreEqual(h, i);
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoBlankNodePersistence()
{
//Create our Test Graph
Graph g = new Graph();
g.BaseUri = new Uri("http://example.org/bnodes/");
g.NamespaceMap.AddNamespace(String.Empty, g.BaseUri);
IBlankNode b = g.CreateBlankNode("blank");
IUriNode rdfType = g.CreateUriNode("rdf:type");
IUriNode bnode = g.CreateUriNode(":BlankNode");
g.Assert(new Triple(b, rdfType, bnode));
Assert.AreEqual(1, g.Triples.Count, "Should only be 1 Triple in the Test Graph");
//Connect to Virtuoso
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
//Save Graph
manager.SaveGraph(g);
//Retrieve
Graph h = new Graph();
Graph i = new Graph();
manager.LoadGraph(h, g.BaseUri);
manager.LoadGraph(i, g.BaseUri);
Assert.AreEqual(1, h.Triples.Count, "Retrieved Graph should only contain 1 Triple");
Assert.AreEqual(1, i.Triples.Count, "Retrieved Graph should only contain 1 Triple");
Console.WriteLine("Contents of Retrieved Graph:");
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
TestTools.CompareGraphs(h, i, true);
//Save back again
manager.SaveGraph(h);
//Retrieve again
Graph j = new Graph();
manager.LoadGraph(j, g.BaseUri);
Console.WriteLine("Contents of Retrieved Graph (Retrieved after saving original Retrieval):");
foreach (Triple t in j.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
TestTools.CompareGraphs(h, j, false);
TestTools.CompareGraphs(i, j, false);
//Save back yet again
manager.SaveGraph(j);
//Retrieve yet again
Graph k = new Graph();
manager.LoadGraph(k, g.BaseUri);
Console.WriteLine("Contents of Retrieved Graph (Retrieved after saving second Retrieval):");
foreach (Triple t in k.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
TestTools.CompareGraphs(j, k, false);
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoDeleteGraph()
{
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
Assert.IsNotNull(manager);
Console.WriteLine("Got the Virtuoso Manager OK");
//Load in our Test Graph
TurtleParser ttlparser = new TurtleParser();
Graph g = new Graph();
ttlparser.Load(g, "resources\\Turtle.ttl");
g.BaseUri = new Uri("http://example.org/deleteMe");
Console.WriteLine();
Console.WriteLine("Loaded Test Graph OK");
Console.WriteLine("Test Graph contains:");
Assert.IsFalse(g.IsEmpty, "Test Graph should be non-empty");
foreach (Triple t in g.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
//Try to save to Virtuoso
manager.SaveGraph(g);
Console.WriteLine("Saved OK");
Console.WriteLine();
//Try to retrieve
Graph h = new Graph();
manager.LoadGraph(h, "http://example.org/deleteMe");
Assert.IsFalse(h.IsEmpty, "Retrieved Graph should be non-empty");
Console.WriteLine("Retrieved the Graph from Virtuoso OK");
Console.WriteLine("Retrieved Graph contains:");
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
//Try to delete
manager.DeleteGraph("http://example.org/deleteMe");
Graph i = new Graph();
manager.LoadGraph(i, "http://example.org/deleteMe");
Assert.IsTrue(i.IsEmpty, "Retrieved Graph should be empty as it should have been deleted from the Store");
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}
public void StorageVirtuosoSaveGraph()
{
NTriplesFormatter formatter = new NTriplesFormatter();
VirtuosoManager manager = VirtuosoTest.GetConnection();
try
{
Assert.IsNotNull(manager);
Console.WriteLine("Got the Virtuoso Manager OK");
//Load in our Test Graph
Graph g = new Graph();
g.LoadFromEmbeddedResource("VDS.RDF.Configuration.configuration.ttl");
g.BaseUri = new Uri("http://example.org/storage/virtuoso/save");
Console.WriteLine();
Console.WriteLine("Loaded Test Graph OK");
Console.WriteLine("Test Graph contains:");
Assert.IsFalse(g.IsEmpty, "Test Graph should be non-empty");
foreach (Triple t in g.Triples)
{
Console.WriteLine(t.ToString(formatter));
}
Console.WriteLine();
//Try to save to Virtuoso
manager.SaveGraph(g);
Console.WriteLine("Saved OK");
Console.WriteLine();
//Try to retrieve
Graph h = new Graph();
manager.LoadGraph(h, g.BaseUri);
Assert.IsFalse(h.IsEmpty, "Retrieved Graph should be non-empty");
Console.WriteLine("Retrieved the Graph from Virtuoso OK");
Console.WriteLine("Retrieved Graph contains:");
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString(formatter));
}
Assert.AreEqual(g.Triples.Count, h.Triples.Count, "Graph should have same number of Triples before and after saving");
GraphDiffReport diff = h.Difference(g);
if (!diff.AreEqual)
{
TestTools.ShowDifferences(diff);
}
Console.WriteLine();
Assert.AreEqual(g, h, "Graphs should be equal");
}
finally
{
if (manager != null)
{
manager.Dispose();
}
}
}