protected override async Task ProcessBatch(CollectorHttpClient client, IList<JObject> items, JObject context)
{
List<Task<IGraph>> tasks = new List<Task<IGraph>>();
foreach (JObject item in items)
{
if (Utils.IsType(context, item, Constants.Package))
{
Uri itemUri = item["url"].ToObject<Uri>();
tasks.Add(client.GetGraphAsync(itemUri));
}
}
if (tasks.Count > 0)
{
await Task.WhenAll(tasks.ToArray());
TripleStore store = new TripleStore();
foreach (Task<IGraph> task in tasks)
{
store.Add(task.Result, true);
}
await ProcessStore(store);
}
}
protected override async Task<bool> OnProcessBatch(CollectorHttpClient client, IEnumerable<JToken> items, JToken context, DateTime commitTimeStamp, bool isLastBatch, CancellationToken cancellationToken)
{
List<Task<IGraph>> tasks = new List<Task<IGraph>>();
foreach (JObject item in items)
{
if (Utils.IsType((JObject)context, item, _types))
{
Uri itemUri = item["@id"].ToObject<Uri>();
tasks.Add(client.GetGraphAsync(itemUri));
}
}
if (tasks.Count > 0)
{
await Task.WhenAll(tasks.ToArray());
TripleStore store = new TripleStore();
foreach (Task<IGraph> task in tasks)
{
store.Add(task.Result, true);
}
await ProcessStore(store, cancellationToken);
}
return true;
}
public void SparqlBind()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT ?triple WHERE { ?s ?p ?o . BIND(fn:concat(STR(?s), ' ', STR(?p), ' ', STR(?o)) AS ?triple) }";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count > 0, "Expected 1 or more results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public void SparqlBindLazy()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT ?triple WHERE { ?s ?p ?o . BIND(fn:concat(STR(?s), ' ', STR(?p), ' ', STR(?o)) AS ?triple) } LIMIT 1";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 1, "Expected exactly 1 results");
Assert.IsTrue(rset.All(r => r.HasValue("triple")), "All Results should have had a value for ?triple");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public MetadataSource(Options opts)
{
if (!String.IsNullOrEmpty(opts.EndpointUri))
{
if (String.IsNullOrEmpty(opts.DefaultGraphUri))
{
this._processor = new RemoteQueryProcessor(new SparqlRemoteEndpoint(new Uri(opts.EndpointUri)));
}
else
{
this._processor = new RemoteQueryProcessor(new SparqlRemoteEndpoint(new Uri(opts.EndpointUri), opts.DefaultGraphUri));
}
}
else if (!String.IsNullOrEmpty(opts.SourceFile))
{
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, opts.SourceFile);
store.Add(g);
this._processor = new LeviathanQueryProcessor(store);
}
else
{
throw new Exception("Must specify an endpoint or a file to query");
}
}
/// <summary>
/// Construictir for MyLoFacebookContextReader
/// </summary>
/// <param name="gpsl">A GPSLookup instance implementing IGPSlookup</param>
public MyLoFacebookContextReader(IGPSlookup gpsl)
{
_store = new TripleStore();
_g = new Graph();
_g.BaseUri = new Uri("http://facebook.MyLo.com");
_store.Add(_g);
gpsLookup = gpsl;
}
/// <summary>
/// Gets a Graph Reference for the given Graph URI.
/// </summary>
/// <param name="graphUri">Graph URI.</param>
/// <returns></returns>
public IGraph this[Uri graphUri]
{
get
{
if (_store.HasGraph(graphUri))
{
return(_store[graphUri]);
}
else
{
Graph g = new Graph();
g.BaseUri = graphUri;
_store.Add(g);
return(g);
}
}
}
protected static IInMemoryQueryableStore CreateMemoryStore()
{
string musicOntology = Settings.Default.testStoreLocation;
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, musicOntology);
store.Add(g);
return store;
}
private static IInMemoryQueryableStore CreateMemoryStore()
{
TripleStore result = new TripleStore();
string serialisedLocation = Settings.Default.testStoreLocation;
Graph g = new Graph();
FileLoader.Load(g, serialisedLocation);
result.Add(g);
return result;
}
public void GraphCollectionBasic1()
{
TripleStore store = new TripleStore();
Graph g = new Graph();
store.Add(g);
Assert.True(store.HasGraph(g.BaseUri), "Graph Collection should contain the Graph");
Assert.Equal(g, store[g.BaseUri]);
}
public void SparqlLazyWithAndWithoutOffset()
{
String query = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/vehicles/Car>)) } LIMIT 3";
String query2 = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/vehicles/Car>)) } LIMIT 3 OFFSET 3";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
SparqlQuery q2 = parser.ParseFromString(query2);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Console.WriteLine(q2.ToAlgebra().ToString());
Assert.IsTrue(q2.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(AsDataset(store));
Object results = processor.ProcessQuery(q);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 3, "Expected exactly 3 results");
Object results2 = processor.ProcessQuery(q2);
if (results2 is SparqlResultSet)
{
SparqlResultSet rset2 = (SparqlResultSet)results2;
foreach (SparqlResult r in rset2)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset2.Count == 1, "Expected exactly 1 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public void InitialiseStore(string storeLocation)
{
TripleStore store = new TripleStore();
//store.AddReasoner(new Euler(new N3Reader(MusicConstants.OntologyURL)));
if (File.Exists(storeLocation))
{
Graph g = new Graph();
FileLoader.Load(g, storeLocation);
store.Add(g);
}
}
public void GraphCollectionBasic2()
{
TripleStore store = new TripleStore();
Graph g = new Graph();
g.LoadFromEmbeddedResource("VDS.RDF.Configuration.configuration.ttl");
store.Add(g);
Assert.True(store.HasGraph(g.BaseUri), "Graph Collection should contain the Graph");
Assert.Equal(g, store[g.BaseUri]);
}
public static void ApplyInference(IGraph graph, IGraph schema)
{
string inverseOf = @"
PREFIX owl: <http://www.w3.org/2002/07/owl#>
CONSTRUCT { ?y ?q ?x }
WHERE { ?p owl:inverseOf ?q .
?x ?p ?y . }
";
var parser = new SparqlQueryParser();
var rules = new List<SparqlQuery>();
rules.Add(parser.ParseFromString(inverseOf));
var store = new TripleStore();
store.Add(graph, true);
store.Add(schema, true);
var queryProcessor = new LeviathanQueryProcessor(store);
while (true)
{
int before = store.Triples.Count();
foreach (var rule in rules)
{
IGraph inferred = (IGraph)queryProcessor.ProcessQuery(rule);
//store.Add(inferred);
graph.Merge(inferred);
}
int after = store.Triples.Count();
if (after == before)
{
break;
}
}
}
static IDictionary<RegistrationEntryKey, RegistrationCatalogEntry> GetResources(IGraph graph)
{
IDictionary<RegistrationEntryKey, RegistrationCatalogEntry> resources = new Dictionary<RegistrationEntryKey, RegistrationCatalogEntry>();
TripleStore store = new TripleStore();
store.Add(graph);
IList<Uri> existingItems = ListExistingItems(store);
foreach (Uri existingItem in existingItems)
{
AddExistingItem(resources, store, existingItem);
}
return resources;
}
public void GraphCollectionDiskDemand2()
{
//Test that on-demand loading does not kick in for pre-existing graphs
TripleStore store = new TripleStore(new DiskDemandGraphCollection());
Graph g = new Graph();
g.LoadFromFile("resources\\InferenceTest.ttl");
g.BaseUri = new Uri("file:///" + Path.GetFullPath("resources\\InferenceTest.ttl"));
Graph empty = new Graph();
empty.BaseUri = g.BaseUri;
store.Add(empty);
Assert.True(store.HasGraph(g.BaseUri), "Graph Collection should contain the Graph");
Assert.NotEqual(g, store[g.BaseUri]);
}
public void SparqlFilterLazy3()
{
long currTimeout = Options.QueryExecutionTimeout;
try
{
Options.QueryExecutionTimeout = 0;
String query = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/vehicles/Car>)) . ?s <http://example.org/vehicles/Speed> ?speed } LIMIT 3";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
q.Timeout = 0;
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(AsDataset(store));
Object results = processor.ProcessQuery(q);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 3, "Expected exactly 3 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
finally
{
Options.QueryExecutionTimeout = currTimeout;
}
}
private VDS.RDF.TripleStore CreateNewTripleStore(IDictionary <string, string> graphs)
{
var store = new VDS.RDF.TripleStore();
foreach (var graph in graphs)
{
var g = new VDS.RDF.Graph();
g.BaseUri = new Uri(graph.Value);
var ttlparser = new TurtleParser();
ttlparser.Load(g, AppDomain.CurrentDomain.BaseDirectory + $"Setup/Graphs/{graph.Key}");
store.Add(g);
}
;
// TODO: Check if usesGraph is in graphGraph
return(store);
}
public void GraphCollectionWebDemand2()
{
//Test that on-demand loading does not kick in for pre-existing graphs
TripleStore store = new TripleStore(new WebDemandGraphCollection());
Graph g = new Graph();
Uri u = new Uri("http://www.dotnetrdf.org/configuration#");
g.LoadFromUri(u);
g.BaseUri = u;
Graph empty = new Graph();
empty.BaseUri = g.BaseUri;
store.Add(empty);
Assert.True(store.HasGraph(g.BaseUri), "Graph Collection should contain the Graph");
Assert.NotEqual(g, store[g.BaseUri]);
}
private IGraph ExecuteDiff(IGraph older, IGraph newer, Uri graphUri = null)
{
var diff = new GraphDiff().Difference(older, newer);
var update = diff.AsUpdate(graphUri);
var sparql = update.ToString();
output.WriteLine(sparql);
older = older ?? new Graph();
var ts = new TripleStore();
ts.Add(older);
var store = new InMemoryManager(ts) as IUpdateableStorage;
store.Update(sparql);
return(older);
}
public void GraphEventBubbling()
{
try
{
this._graphAdded = false;
this._graphRemoved = false;
this._graphChanged = false;
//Create Store and Graph add attach handlers to Store
TripleStore store = new TripleStore();
Graph g = new Graph();
store.GraphAdded += this.HandleGraphAdded;
store.GraphRemoved += this.HandleGraphRemoved;
store.GraphChanged += this.HandleGraphChanged;
//Add the Graph to the Store which should fire the GraphAdded event
store.Add(g);
Assert.IsTrue(this._graphAdded, "GraphAdded event of the Triple Store should have fired");
//Assert a Triple
INode s = g.CreateBlankNode();
INode p = g.CreateUriNode("rdf:type");
INode o = g.CreateUriNode("rdfs:Class");
Triple t = new Triple(s, p, o);
g.Assert(t);
Assert.IsTrue(this._graphChanged, "GraphChanged event of the Triple Store should have fired");
//Retract the Triple
this._graphChanged = false;
g.Retract(t);
Assert.IsTrue(this._graphChanged, "GraphChanged event of the Triple Store should have fired");
//Remove the Graph from the Store which should fire the GraphRemoved event
store.Remove(g.BaseUri);
Assert.IsTrue(this._graphRemoved, "GraphRemoved event of the Triple Store should have fired");
}
catch (Exception ex)
{
throw;
}
}
public void SparqlBindToExistingVariableLazy()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT * WHERE { ?s ?p ?o . BIND(?s AS ?p) } LIMIT 1";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
try
{
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
store.ExecuteQuery(q);
Assert.Fail("Expected a RdfParseException/RdfQueryException to be thrown");
}
catch (RdfParseException parseEx)
{
Console.WriteLine("Parsing Error thrown as expected");
TestTools.ReportError("Parser Error", parseEx);
}
catch (RdfQueryException queryEx)
{
Console.WriteLine("Query Error thrown as expected");
TestTools.ReportError("Query Error", queryEx);
}
catch (Exception ex)
{
TestTools.ReportError("Unexpected Error", ex);
Assert.Fail("Did not get a RdfParseException/RdfQueryException as expected");
}
}
public void SparqlFilterLazyDBPedia()
{
SparqlParameterizedString query = new SparqlParameterizedString();
query.Namespaces.AddNamespace("rdfs", new Uri(NamespaceMapper.RDFS));
query.CommandText = "SELECT * WHERE {?s ?p ?label . FILTER(ISLITERAL(?label) && LANGMATCHES(LANG(?label), \"en\")) } LIMIT 5";
TripleStore store = new TripleStore();
Graph g = new Graph();
UriLoader.Load(g, new Uri("http://dbpedia.org/resource/Southampton"));
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(AsDataset(store));
Object results = processor.ProcessQuery(q);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public void SparqlFilterLazy4()
{
String query = "SELECT * WHERE { ?s a <http://example.org/vehicles/Car> ; <http://example.org/vehicles/Speed> ?speed } LIMIT 3";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 3, "Expected exactly 3 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public void SparqlFilterLazy2()
{
String query = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/Vehicles/Car>)) } LIMIT 3";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine("NOTE: The URI for Car is purposefully wrong in this case so no results should be returned");
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 0, "Expected no results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
async Task DeletePackage(Uri resourceUri, string version)
{
string existingJson = await _storage.Load(resourceUri);
if (existingJson != null)
{
IGraph currentPackageRegistration = Utils.CreateGraph(existingJson);
using (TripleStore store = new TripleStore())
{
store.Add(currentPackageRegistration, true);
SparqlParameterizedString sparql = new SparqlParameterizedString();
sparql.CommandText = Utils.GetResource("sparql.DeletePackage.rq");
sparql.SetLiteral("version", version);
IGraph modifiedPackageRegistration = SparqlHelpers.Construct(store, sparql.ToString());
if (CountPackage(modifiedPackageRegistration) == 0)
{
await _storage.Delete(resourceUri);
}
else
{
string content = Utils.CreateJson(modifiedPackageRegistration, _resolverFrame);
await _storage.Save("application/json", resourceUri, content);
}
}
}
}
public void SparqlJsonResultSet()
{
Console.WriteLine("Tests that JSON Parser parses language specifiers correctly");
String query = "PREFIX rdfs: <" + NamespaceMapper.RDFS + ">\nSELECT DISTINCT ?comment WHERE {?s rdfs:comment ?comment}";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "json.owl");
store.Add(g);
Object results = store.ExecuteQuery(query);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
//Serialize to both XML and JSON Results format
SparqlXmlWriter xmlwriter = new SparqlXmlWriter();
xmlwriter.Save(rset, "results.xml");
SparqlJsonWriter jsonwriter = new SparqlJsonWriter();
jsonwriter.Save(rset, "results.json");
//Read both back in
SparqlXmlParser xmlparser = new SparqlXmlParser();
SparqlResultSet r1 = new SparqlResultSet();
xmlparser.Load(r1, "results.xml");
Console.WriteLine("Result Set after XML serialization and reparsing contains:");
foreach (SparqlResult r in r1)
{
Console.WriteLine(r.ToString());
}
Console.WriteLine();
SparqlJsonParser jsonparser = new SparqlJsonParser();
SparqlResultSet r2 = new SparqlResultSet();
jsonparser.Load(r2, "results.json");
Console.WriteLine("Result Set after JSON serialization and reparsing contains:");
foreach (SparqlResult r in r2)
{
Console.WriteLine(r.ToString());
}
Console.WriteLine();
Assert.AreEqual(r1, r2, "Results Sets should be equal");
Console.WriteLine("Result Sets were equal as expected");
}
else
{
Assert.Fail("Query did not return a Result Set");
}
}
int CountPackage(IGraph packageRegistration)
{
using (TripleStore store = new TripleStore())
{
store.Add(packageRegistration, true);
SparqlResultSet countResultSet = SparqlHelpers.Select(store, Utils.GetResource("sparql.SelectPackageCount.rq"));
foreach (SparqlResult row in countResultSet)
{
string s = ((ILiteralNode)row["count"]).Value;
return int.Parse(s);
}
}
return 0;
}
public void SparqlLazyWithAndWithoutOffset()
{
String query = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/vehicles/Car>)) } LIMIT 3";
String query2 = "SELECT * WHERE { ?s a ?vehicle . FILTER (SAMETERM(?vehicle, <http://example.org/vehicles/Car>)) } LIMIT 3 OFFSET 3";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
SparqlQuery q2 = parser.ParseFromString(query2);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Console.WriteLine(q2.ToAlgebra().ToString());
Assert.IsTrue(q2.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 3, "Expected exactly 3 results");
Object results2 = q2.Evaluate(store);
if (results2 is SparqlResultSet)
{
SparqlResultSet rset2 = (SparqlResultSet)results2;
foreach (SparqlResult r in rset2)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset2.Count == 1, "Expected exactly 1 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
//
internal LinqTripleStore CreateSparqlTripleStore()
{
string tasksOntology = Path.Combine(Settings.Default.taskStorePath, Settings.Default.tasksOntologyName);
string tasks = Path.Combine(Settings.Default.taskStorePath, Settings.Default.tasksDataName);
TripleStore store = new TripleStore();
//store.AddReasoner(new Euler(new N3Reader(tasksOntology)));
//store.Import(new N3Reader(tasksOntology));
Graph g = new Graph();
FileLoader.Load(g, tasks);
store.Add(g);
g = new Graph();
FileLoader.Load(g, tasksOntology);
store.Add(g);
return new LinqTripleStore(store);
}
private void chkWebDemand_CheckedChanged(object sender, EventArgs e)
{
if (this.chkWebDemand.Checked)
{
if (this._store is WebDemandTripleStore)
{
//Nothing to do
}
else
{
WebDemandTripleStore store = new WebDemandTripleStore();
foreach (IGraph g in this._store.Graphs)
{
store.Add(g);
}
this._store = store;
}
}
else
{
if (this._store is TripleStore)
{
//Nothing to do
}
else
{
TripleStore store = new TripleStore();
foreach (IGraph g in this._store.Graphs)
{
store.Add(g);
}
this._store = store;
}
}
}
public override IGraph CreatePageContent(CatalogContext context)
{
try
{
IGraph content;
using (TripleStore store = new TripleStore())
{
store.Add(_catalogItem, true);
SparqlParameterizedString sparql = new SparqlParameterizedString();
sparql.CommandText = Utils.GetResource("sparql.ConstructPackagePageContentGraph.rq");
sparql.SetUri("package", GetItemAddress());
sparql.SetUri("catalogPackage", _catalogUri);
sparql.SetUri("baseAddress", BaseAddress);
sparql.SetUri("packageContent", GetPackageContentAddress());
sparql.SetUri("registrationBaseAddress", _registrationBaseAddress);
content = SparqlHelpers.Construct(store, sparql.ToString());
}
return content;
}
catch (Exception e)
{
throw new Exception(string.Format("Exception processing catalog item {0}", _catalogUri), e);
}
}
public void SparqlFilterLazyDBPedia()
{
SparqlParameterizedString query = new SparqlParameterizedString();
query.Namespaces.AddNamespace("rdfs", new Uri(NamespaceMapper.RDFS));
query.QueryText = "SELECT * WHERE {?s ?p ?label . FILTER(ISLITERAL(?label) && LANGMATCHES(LANG(?label), \"en\")) } LIMIT 5";
TripleStore store = new TripleStore();
Graph g = new Graph();
UriLoader.Load(g, new Uri("http://dbpedia.org/resource/Southampton"));
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public static void Main(string[] args)
{
StreamWriter output = new StreamWriter("InferenceTest.txt");
try
{
//Set Output
Console.SetOut(output);
Console.WriteLine("## Inference Test Suite");
//Load the Test RDF
TurtleParser ttlparser = new TurtleParser();
Graph g = new Graph();
//ttlparser.TraceParsing = true;
ttlparser.Load(g, "InferenceTest.ttl");
Console.WriteLine("Inference Test Data Loaded OK");
Console.WriteLine();
Console.WriteLine("Graph contains the following Triples:");
foreach (Triple t in g.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
//Select everything that is exactly a Car
Console.WriteLine("# Selecting things whose class is exactly Car");
ExactClassSelector carsel = new ExactClassSelector(g, g.CreateUriNode("eg:Car"));
Test(g, carsel);
Console.WriteLine();
//Select everything that is any sort of Car
Console.WriteLine("# Selecting things whose class is Car or a subclass thereof");
ClassSelector allcarsel = new ClassSelector(g, g.CreateUriNode("eg:Car"));
Test(g, allcarsel);
Console.WriteLine();
//Select everything that is a SportsCar or superclass thereof
Console.WriteLine("# Selecting things whose class is SportsCar or superclass thereof");
Console.WriteLine("# Thus things which are Cars are selected but not PeopleCarriers since they are a sibling class and not a superclass");
WideningClassSelector wcarsel = new WideningClassSelector(g, g.CreateUriNode("eg:SportsCar"));
Test(g, wcarsel);
Console.WriteLine();
//Select everything that is exactly a Jumbo Jet
Console.WriteLine("# Selecting things whose class is exactly JumboJet");
ExactClassSelector jjsel = new ExactClassSelector(g, g.CreateUriNode("eg:JumboJet"));
Test(g, jjsel);
Console.WriteLine();
//Select everything that is an Air Vehicle
Console.WriteLine("# Selecting things which are Air Vehicles");
ClassSelector avsel = new ClassSelector(g, g.CreateUriNode("eg:AirVehicle"));
Test(g, avsel);
Console.WriteLine();
//Select everything that has a defined Speed
Console.WriteLine("# Selecting things which have exactly Speed defined");
HasExactPropertySelector spsel = new HasExactPropertySelector(g.CreateUriNode("eg:Speed"));
Test(g, spsel);
Console.WriteLine();
//Select things with a limited Speed
Console.WriteLine("# Selecting things which have a Limited Speed defined");
HasExactPropertySelector lspsel = new HasExactPropertySelector(g.CreateUriNode("eg:LimitedSpeed"));
Test(g, lspsel);
Console.WriteLine();
//Select things with any kinds of Speed
Console.WriteLine("# Selecting things which have any kinds of Speed defined");
HasPropertySelector allspsel = new HasPropertySelector(g, g.CreateUriNode("eg:Speed"));
Test(g, allspsel);
Console.WriteLine();
//Now stick the Graph in a Triple Store with a Reasoner attached
Console.WriteLine("# Using a Triple Store with an RDFS Reasoner attached");
TripleStore store = new TripleStore();
store.AddInferenceEngine(new RdfsReasoner());
g.BaseUri = new Uri("http://example.org/Inference");
//Add a couple of additional Triples, their types must be inferred
g.Assert(new Triple(g.CreateUriNode("eg:AudiA8"), g.CreateUriNode("eg:Speed"), (180).ToLiteral(g)));
g.Assert(new Triple(g.CreateUriNode("eg:SpaceShuttle"), g.CreateUriNode("eg:AirSpeed"), (17500).ToLiteral(g)));
//Add the Graph to the store, this is when inference occurs
store.Add(g);
Console.WriteLine("Triple Store contains the following Triples");
foreach (Triple t in store.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
//Select things which are a Car
Console.WriteLine("# Selecting things which are a Car (or subclass thereof)");
HasPropertyValueSelector carsel2 = new HasPropertyValueSelector(g.CreateUriNode("rdf:type"), g.CreateUriNode("eg:Car"));
Test(store, carsel2);
Console.WriteLine();
//Select things which are Air Vehicles
Console.WriteLine("# Selecting things which are Air Vehicles");
HasPropertyValueSelector avsel2 = new HasPropertyValueSelector(g.CreateUriNode("rdf:type"), g.CreateUriNode("eg:AirVehicle"));
Test(store, avsel2);
Console.WriteLine();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine(ex.StackTrace);
}
output.Close();
}
public void SparqlBindToExistingVariableNested()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT * WHERE { ?s ?p ?o .{ BIND(?s AS ?p)} }";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
try
{
SparqlQuery q = parser.ParseFromString(query);
store.ExecuteQuery(q);
Assert.Fail("Expected a RdfQueryException to be thrown");
}
catch (RdfQueryException)
{
Console.WriteLine("Error thrown as expected");
}
catch
{
Assert.Fail("Expected a RdfQueryException");
}
}
public void SparqlOrderByComplexLazyPerformance()
{
String query = "SELECT * WHERE { ?s ?p ?o . } ORDER BY ?s DESC(?p) LIMIT 5";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "dataset_50.ttl.gz");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
//First do with Optimisation
Stopwatch timer = new Stopwatch();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
timer.Start();
LeviathanQueryProcessor processor = new LeviathanQueryProcessor(AsDataset(store));
Object results = processor.ProcessQuery(q);
timer.Stop();
Console.WriteLine("Took " + timer.Elapsed + " to execute when Optimised");
timer.Reset();
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
//Then do without optimisation
Options.AlgebraOptimisation = false;
timer.Start();
results = processor.ProcessQuery(q);
timer.Stop();
Console.WriteLine("Took " + timer.Elapsed + " to execute when Unoptimised");
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
Options.AlgebraOptimisation = true;
}
public void SparqlLetIn11Standard()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT ?triple WHERE { ?s ?p ?o . LET (?triple := fn:concat(STR(?s), ' ', STR(?p), ' ', STR(?o))) }";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser(SparqlQuerySyntax.Sparql_1_1);
try
{
SparqlQuery q = parser.ParseFromString(query);
Assert.Fail("Expected a RdfParseException to be thrown");
}
catch (RdfParseException)
{
Console.WriteLine("Error thrown as expected");
}
catch
{
Assert.Fail("Expected a RdfParseException");
}
}
static void AddExistingItems(IGraph graph, IDictionary<string, IGraph> items)
{
TripleStore store = new TripleStore();
store.Add(graph, true);
string inlinePackageSparql = Utils.GetResource("sparql.SelectInlinePackage.rq");
SparqlResultSet rows = SparqlHelpers.Select(store, inlinePackageSparql);
foreach (SparqlResult row in rows)
{
string packageUri = ((IUriNode)row["catalogPackage"]).Uri.AbsoluteUri;
string jsonFileName = packageUri.Substring(packageUri.LastIndexOf("/") + 1);
//If items already has that version, then skip it
//Add only the new ones
if (!existingVersionsWithID.Contains(jsonFileName))
{
items[packageUri] = graph;
}
}
}
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 void SparqlOrderByComplexLazy()
{
String query = "SELECT * WHERE { ?s ?p ?o . } ORDER BY ?s DESC(?p) LIMIT 5";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
Object results = q.Evaluate(store);
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
}
public void SparqlOrderByComplexLazyPerformance()
{
String query = "SELECT * WHERE { ?s ?p ?o . } ORDER BY ?s DESC(?p) LIMIT 5";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "dataset_50.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
//First do with Optimisation
Stopwatch timer = new Stopwatch();
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
timer.Start();
Object results = q.Evaluate(store);
timer.Stop();
Console.WriteLine("Took " + timer.Elapsed + " to execute when Optimised");
timer.Reset();
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
//Then do without optimisation
Options.AlgebraOptimisation = false;
timer.Start();
results = q.Evaluate(store);
timer.Stop();
Console.WriteLine("Took " + timer.Elapsed + " to execute when Unoptimised");
if (results is SparqlResultSet)
{
SparqlResultSet rset = (SparqlResultSet)results;
foreach (SparqlResult r in rset)
{
Console.WriteLine(r.ToString());
}
Assert.IsTrue(rset.Count == 5, "Expected exactly 5 results");
}
else
{
Assert.Fail("Expected a SPARQL Result Set");
}
Options.AlgebraOptimisation = true;
}
public void SparqlBindToExistingVariableLazy()
{
String query = "PREFIX fn: <" + XPathFunctionFactory.XPathFunctionsNamespace + "> SELECT * WHERE { ?s ?p ?o . BIND(?s AS ?p) } LIMIT 1";
TripleStore store = new TripleStore();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
store.Add(g);
SparqlQueryParser parser = new SparqlQueryParser();
try
{
SparqlQuery q = parser.ParseFromString(query);
Console.WriteLine(q.ToAlgebra().ToString());
Assert.IsTrue(q.ToAlgebra().ToString().Contains("LazyBgp"), "Should have been optimised to use a Lazy BGP");
Console.WriteLine();
store.ExecuteQuery(q);
Assert.Fail("Expected a RdfParseException/RdfQueryException to be thrown");
}
catch (RdfParseException parseEx)
{
Console.WriteLine("Parsing Error thrown as expected");
TestTools.ReportError("Parser Error", parseEx, false);
}
catch (RdfQueryException queryEx)
{
Console.WriteLine("Query Error thrown as expected");
TestTools.ReportError("Query Error", queryEx, false);
}
catch (Exception ex)
{
TestTools.ReportError("Unexpected Error", ex, false);
Assert.Fail("Did not get a RdfParseException/RdfQueryException as expected");
}
}
private IEnumerable<EntityQuad> GetQuads(string fileName, bool useNQuads = true)
{
var store = new TripleStore();
if (useNQuads)
{
new NQuadsParser().Load(store, fileName);
}
else
{
IGraph graph = new Graph();
new Notation3Parser().Load(graph, fileName);
store.Add(graph);
}
IDictionary<string, string> bnodes = CreateGraphMap(store, fileName, useNQuads);
return from triple in store.Triples
let graphNode = (triple.Graph == null) || (triple.Graph.BaseUri == null) ? null :
(Regex.IsMatch(triple.Graph.BaseUri.AbsoluteUri, "[a-zA-Z0-9_]+://") ? Node.ForUri(triple.Graph.BaseUri) : Node.ForBlank(bnodes[triple.Graph.BaseUri.AbsoluteUri], null, null))
let entityId = (triple.Subject is IUriNode ? new EntityId(((IUriNode)triple.Subject).Uri) : new BlankId(((IBlankNode)triple.Subject).InternalID))
select
new EntityQuad(
entityId,
WrapNode(triple.Subject),
WrapNode(triple.Predicate),
WrapNode(triple.Object),
graphNode);
}