public void StorageFusekiSaveDefaultGraph()
{
try
{
Options.UriLoaderCaching = false;
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
g.BaseUri = null;
//Save Graph to Fuseki
FusekiConnector fuseki = new FusekiConnector(FusekiTestUri);
fuseki.SaveGraph(g);
Console.WriteLine("Graph saved to Fuseki OK");
//Now retrieve Graph from Fuseki
Graph h = new Graph();
fuseki.LoadGraph(h, (Uri)null);
Console.WriteLine();
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString(this._formatter));
}
Assert.AreEqual(g, h, "Graphs should be equal");
Assert.IsNull(h.BaseUri, "Retrieved Graph should have a null Base URI");
}
finally
{
Options.UriLoaderCaching = true;
}
}
/// <summary>
/// Tries to load a Generic IO Manager based on information from the Configuration Graph
/// </summary>
/// <param name="g">Configuration Graph</param>
/// <param name="objNode">Object Node</param>
/// <param name="targetType">Target Type</param>
/// <param name="obj">Output Object</param>
/// <returns></returns>
public bool TryLoadObject(IGraph g, INode objNode, Type targetType, out object obj)
{
IGenericIOManager manager = null;
obj = null;
String server, user, pwd, store;
bool isAsync;
Object temp;
INode storeObj;
//Create the URI Nodes we're going to use to search for things
INode propServer = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyServer),
propDb = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyDatabase),
propStore = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyStore),
propAsync = ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyAsync);
switch (targetType.FullName)
{
case AllegroGraph:
//Get the Server, Catalog and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
String catalog = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyCatalog));
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null) return false;
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = new AllegroGraphConnector(server, catalog, store, user, pwd);
}
else
{
manager = new AllegroGraphConnector(server, catalog, store);
}
break;
case DatasetFile:
//Get the Filename and whether the loading should be done asynchronously
String file = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyFromFile));
if (file == null) return false;
file = ConfigurationLoader.ResolvePath(file);
isAsync = ConfigurationLoader.GetConfigurationBoolean(g, objNode, propAsync, false);
manager = new DatasetFileManager(file, isAsync);
break;
case Dydra:
//Get the Account Name and Store
String account = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyCatalog));
if (account == null) return false;
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null) return false;
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null)
{
manager = new DydraConnector(account, store, user);
}
else
{
manager = new DydraConnector(account, store);
}
break;
case FourStore:
//Get the Server and whether Updates are enabled
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
bool enableUpdates = ConfigurationLoader.GetConfigurationBoolean(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEnableUpdates), true);
manager = new FourStoreConnector(server, enableUpdates);
break;
case Fuseki:
//Get the Server URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
manager = new FusekiConnector(server);
break;
case InMemory:
//Get the Dataset/Store
INode datasetObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUsingDataset));
if (datasetObj != null)
{
temp = ConfigurationLoader.LoadObject(g, datasetObj);
if (temp is ISparqlDataset)
{
manager = new InMemoryManager((ISparqlDataset)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingDataset property points to an Object that cannot be loaded as an object which implements the ISparqlDataset interface");
}
}
else
{
//If no dnr:usingDataset try dnr:usingStore instead
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUsingStore));
if (storeObj != null)
{
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IInMemoryQueryableStore)
{
manager = new InMemoryManager((IInMemoryQueryableStore)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the In-Memory Manager identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:usingStore property points to an Object that cannot be loaded as an object which implements the IInMemoryQueryableStore interface");
}
}
else
{
//If no dnr:usingStore either then create a new empty store
manager = new InMemoryManager();
}
}
break;
case Joseki:
//Get the Query and Update URIs
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
String queryService = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyQueryPath));
if (queryService == null) return false;
String updateService = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyUpdatePath));
if (updateService == null)
{
manager = new JosekiConnector(server, queryService);
}
else
{
manager = new JosekiConnector(server, queryService, updateService);
}
break;
case ReadOnly:
//Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IGenericIOManager)
{
manager = new ReadOnlyConnector((IGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IGenericIOManager interface");
}
break;
case ReadOnlyQueryable:
//Get the actual Manager we are wrapping
storeObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyGenericManager));
temp = ConfigurationLoader.LoadObject(g, storeObj);
if (temp is IQueryableGenericIOManager)
{
manager = new QueryableReadOnlyConnector((IQueryableGenericIOManager)temp);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the Queryable Read-Only Connector identified by the Node '" + objNode.ToString() + "' as the value given for the dnr:genericManager property points to an Object which cannot be loaded as an object which implements the required IQueryableGenericIOManager interface");
}
break;
case Sesame:
case SesameV5:
case SesameV6:
//Get the Server and Store ID
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null) return false;
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = (IGenericIOManager)Activator.CreateInstance(targetType, new Object[] { server, store, user, pwd });
}
else
{
manager = (IGenericIOManager)Activator.CreateInstance(targetType, new Object[] { server, store });
}
break;
case Sparql:
//Get the Endpoint URI or the Endpoint
server = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEndpointUri));
//What's the load mode?
String loadModeRaw = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
SparqlConnectorLoadMethod loadMode = SparqlConnectorLoadMethod.Construct;
if (loadModeRaw != null)
{
try
{
#if SILVERLIGHT
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw, false);
#else
loadMode = (SparqlConnectorLoadMethod)Enum.Parse(typeof(SparqlConnectorLoadMethod), loadModeRaw);
#endif
}
catch
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:loadMode is not valid");
}
}
if (server == null)
{
INode endpointObj = ConfigurationLoader.GetConfigurationNode(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyEndpoint));
if (endpointObj == null) return false;
temp = ConfigurationLoader.LoadObject(g, endpointObj);
if (temp is SparqlRemoteEndpoint)
{
manager = new SparqlConnector((SparqlRemoteEndpoint)temp, loadMode);
}
else
{
throw new DotNetRdfConfigurationException("Unable to load the SparqlConnector identified by the Node '" + objNode.ToString() + "' as the value given for the property dnr:endpoint points to an Object which cannot be loaded as an object which is of the type SparqlRemoteEndpoint");
}
}
else
{
//Are there any Named/Default Graph URIs
IEnumerable<Uri> defGraphs = from def in ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyDefaultGraphUri))
where def.NodeType == NodeType.Uri
select ((IUriNode)def).Uri;
IEnumerable<Uri> namedGraphs = from named in ConfigurationLoader.GetConfigurationData(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyNamedGraphUri))
where named.NodeType == NodeType.Uri
select ((IUriNode)named).Uri;
if (defGraphs.Any() || namedGraphs.Any())
{
manager = new SparqlConnector(new SparqlRemoteEndpoint(new Uri(server), defGraphs, namedGraphs), loadMode);
}
else
{
manager = new SparqlConnector(new Uri(server), loadMode);
}
}
break;
case SparqlHttpProtocol:
//Get the Service URI
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
manager = new SparqlHttpProtocolConnector(new Uri(server));
break;
case Stardog:
//Get the Server and Store
server = ConfigurationLoader.GetConfigurationString(g, objNode, propServer);
if (server == null) return false;
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null) return false;
//Get User Credentials
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
//Get Reasoning Mode
StardogReasoningMode reasoning = StardogReasoningMode.None;
String mode = ConfigurationLoader.GetConfigurationString(g, objNode, ConfigurationLoader.CreateConfigurationNode(g, ConfigurationLoader.PropertyLoadMode));
if (mode != null)
{
try
{
reasoning = (StardogReasoningMode)Enum.Parse(typeof(StardogReasoningMode), mode);
}
catch
{
reasoning = StardogReasoningMode.None;
}
}
if (user != null && pwd != null)
{
manager = new StardogConnector(server, store, reasoning, user, pwd);
}
else
{
manager = new StardogConnector(server, store, reasoning);
}
break;
case Talis:
//Get the Store Name and User credentials
store = ConfigurationLoader.GetConfigurationString(g, objNode, propStore);
if (store == null) return false;
ConfigurationLoader.GetUsernameAndPassword(g, objNode, true, out user, out pwd);
if (user != null && pwd != null)
{
manager = new TalisPlatformConnector(store, user, pwd);
}
else
{
manager = new TalisPlatformConnector(store);
}
break;
}
obj = manager;
return (manager != null);
}
public void ParsingWriteToStoreHandlerBNodesAcrossBatchesFuseki()
{
FusekiConnector fuseki = new FusekiConnector("http://localhost:3030/dataset/data");
this.TestWriteToStoreHandlerWithBNodes(fuseki);
}
public void ParsingWriteToStoreHandlerFuseki()
{
try
{
Options.UriLoaderCaching = false;
FusekiConnector fuseki = new FusekiConnector("http://localhost:3030/dataset/data");
this.TestWriteToStoreHandler(fuseki);
}
finally
{
Options.UriLoaderCaching = true;
}
}
public void StorageFusekiDescribe()
{
try
{
Options.HttpDebugging = true;
FusekiConnector fuseki = new FusekiConnector(FusekiTestUri);
Object results = fuseki.Query("DESCRIBE <http://example.org/vehicles/FordFiesta>");
if (results is IGraph)
{
TestTools.ShowGraph((IGraph)results);
}
else
{
Assert.Fail("Did not return a Graph as expected");
}
}
finally
{
Options.HttpDebugging = false;
}
}
public void StorageFusekiUpdate()
{
try
{
Options.HttpDebugging = true;
FusekiConnector fuseki = new FusekiConnector(new Uri(FusekiTestUri));
//Try doing a SPARQL Update LOAD command
String command = "LOAD <http://dbpedia.org/resource/Ilkeston> INTO GRAPH <http://example.org/Ilson>";
fuseki.Update(command);
//Then see if we can retrieve the newly loaded graph
IGraph g = new Graph();
fuseki.LoadGraph(g, "http://example.org/Ilson");
Assert.IsFalse(g.IsEmpty, "Graph should be non-empty");
foreach (Triple t in g.Triples)
{
Console.WriteLine(t.ToString(this._formatter));
}
Console.WriteLine();
//Try a DROP Graph to see if that works
command = "DROP GRAPH <http://example.org/Ilson>";
fuseki.Update(command);
//Have to use a SPARQL CONSTRUCT here to check if the Graph has been dropped as doing a LoadGraph
//will get it from the cache as when we use SPARQL Update to remove a Graph the connector doesn't
//currently check what Graphs are affected and remove then from the Cache
//Also this would be very tricky to do as would involve parsing and analysing the Update Commands
SparqlRemoteEndpoint endpoint = new SparqlRemoteEndpoint(new Uri(new Uri(FusekiTestUri), "query"));
g = endpoint.QueryWithResultGraph("CONSTRUCT { ?s ?p ?o } WHERE { GRAPH <http://example.org/Ilson> { ?s ?p ?o } }");
Assert.IsTrue(g.IsEmpty, "Graph should be empty as it should have been DROPped by Fuseki");
}
finally
{
Options.HttpDebugging = false;
}
}
public void StorageFusekiQuery()
{
FusekiConnector fuseki = new FusekiConnector(FusekiTestUri);
Object results = fuseki.Query("SELECT * WHERE { {?s ?p ?o} UNION { GRAPH ?g {?s ?p ?o} } }");
if (results is SparqlResultSet)
{
TestTools.ShowResults(results);
}
else
{
Assert.Fail("Did not get a SPARQL Result Set as expected");
}
}
public void StorageFusekiRemoveTriples()
{
try
{
Options.UriLoaderCaching = false;
StorageFusekiSaveGraph();
Graph g = new Graph();
List<Triple> ts = new List<Triple>();
ts.Add(new Triple(g.CreateUriNode(new Uri("http://example.org/subject")), g.CreateUriNode(new Uri("http://example.org/predicate")), g.CreateUriNode(new Uri("http://example.org/object"))));
FusekiConnector fuseki = new FusekiConnector(FusekiTestUri);
fuseki.UpdateGraph("http://example.org/fusekiTest", null, ts);
fuseki.LoadGraph(g, "http://example.org/fusekiTest");
Assert.IsTrue(ts.All(t => !g.ContainsTriple(t)), "Removed Triple should not have been in the Graph");
}
finally
{
Options.UriLoaderCaching = true;
}
}
public void StorageFusekiDeleteDefaultGraph2()
{
try
{
Options.UriLoaderCaching = false;
StorageFusekiSaveDefaultGraph();
FusekiConnector fuseki = new FusekiConnector(new Uri(FusekiTestUri));
fuseki.DeleteGraph((String)null);
Graph g = new Graph();
try
{
fuseki.LoadGraph(g, (Uri)null);
}
catch (Exception ex)
{
Console.WriteLine("Errored as expected since the Graph was deleted");
TestTools.ReportError("Error", ex, false);
}
Console.WriteLine();
//If we do get here without erroring then the Graph should be empty
Assert.IsTrue(g.IsEmpty, "Graph should be empty even if an error wasn't thrown as the data should have been deleted from the Store");
}
finally
{
Options.UriLoaderCaching = true;
}
}
public void StorageFusekiLoadGraph()
{
try
{
Options.UriLoaderCaching = false;
//Ensure that the Graph will be there using the SaveGraph() test
StorageFusekiSaveGraph();
Graph g = new Graph();
FileLoader.Load(g, "InferenceTest.ttl");
g.BaseUri = new Uri("http://example.org/fusekiTest");
//Try to load the relevant Graph back from the Store
FusekiConnector fuseki = new FusekiConnector(FusekiTestUri);
Graph h = new Graph();
fuseki.LoadGraph(h, "http://example.org/fusekiTest");
Console.WriteLine();
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString(this._formatter));
}
Assert.AreEqual(g, h, "Graphs should be equal");
}
finally
{
Options.UriLoaderCaching = true;
}
}
