public void StorageTalisStoreQuery()
{
try
{
//Get the Talis Connection
TalisPlatformConnector talis = new TalisPlatformConnector("rvesse-dev1", "rvesse", "4kn478wj");
Assert.IsNotNull(talis);
//Create a Talis Triple Store
TalisTripleStore store = new TalisTripleStore(talis);
//Try a SELECT *
String selectAll = "SELECT * {?s ?p ?o}";
Object results = store.ExecuteQuery(selectAll);
Assert.IsNotNull(results, "Expected some kind of results from the Query");
TestTools.ShowResults(results);
Console.WriteLine("SELECT query OK");
Console.WriteLine();
//Try a DESCRIBE
String describe = "DESCRIBE <http://example.org/vehicles/FordFiesta>";
results = store.ExecuteQuery(describe);
Assert.IsNotNull(results, "Expected some kind of results from the Query");
TestTools.ShowResults(results);
Console.WriteLine("DESCRIBE query OK");
Console.WriteLine();
//Try an ASK
String ask = "ASK {?s ?p ?o}";
results = store.ExecuteQuery(ask);
Assert.IsNotNull(results, "Expected some kind of results from the Query");
TestTools.ShowResults(results);
Console.WriteLine("ASK query OK");
Console.WriteLine();
//Try another ASK
ask = "ASK {?s <http://example.org/nosuchthing> ?o}";
results = store.ExecuteQuery(ask);
Assert.IsNotNull(results, "Expected some kind of results from the Query");
TestTools.ShowResults(results);
Console.WriteLine("ASK query OK");
Console.WriteLine();
}
catch (TalisException talisEx)
{
TestTools.ReportError("Talis Error", talisEx, true);
}
catch (RdfParseException parseEx)
{
TestTools.ReportError("Parsing Error", parseEx, true);
}
catch (Exception ex)
{
TestTools.ReportError("Other Error", ex, true);
}
}
/// <summary>
/// Creates a new Talis Reader that connects to a Store using the given Connector
/// </summary>
/// <param name="connector">Connector</param>
public TalisReader(TalisPlatformConnector connector)
{
this._talis = connector;
}
/// <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);
}
/// <summary>
/// Creates a new Talis Triple Store
/// </summary>
/// <param name="connector">Connection to a Talis Store</param>
public TalisTripleStore(TalisPlatformConnector connector)
: base(new GraphCollection())
{
this._talis = connector;
}
/// <summary>
/// Creates a new instance of a Talis Graph which contains the description of the given Uri from the given underlying Talis Store
/// </summary>
/// <param name="resourceUri">Uri of resource to retrieve a Description of</param>
/// <param name="connector">Connection to a Talis Store</param>
public TalisGraph(Uri resourceUri, TalisPlatformConnector connector)
: base(connector, resourceUri)
{
this._talis = connector;
}
/// <summary>
/// Creates a new instance of a Talis Graph which contains the description of the given Uri from the given underlying Talis Store
/// </summary>
/// <param name="resourceUri">Uri of resource to retrieve a Description of</param>
/// <param name="connector">Connection to a Talis Store</param>
public TalisGraph(String resourceUri, TalisPlatformConnector connector)
: this(new Uri(resourceUri), connector) { }
public static void Main(String[] args)
{
StreamWriter output = new StreamWriter("TalisTests.txt");
try
{
Console.SetOut(output);
Console.WriteLine("## Talis Platform Tests");
Console.WriteLine();
//Read in our Test Graph
Graph g = new Graph();
TurtleParser ttlparser = new TurtleParser();
ttlparser.Load(g, "TalisTest.ttl");
Console.WriteLine("Loaded Test Graph OK");
Console.WriteLine();
//Get the Talis Store
TalisPlatformConnector talis = new TalisPlatformConnector("rvesse-dev1", "rvesse", "4kn478wj");
//Attempt to add a Graph
Console.WriteLine("# Attempting to add this Graph to the Talis Store");
talis.Add(g);
Console.WriteLine("Added the Graph OK");
Console.WriteLine();
//Attempt to get this some data from this Graph back again
Console.WriteLine("# Attempting to retrieve some data from this Graph from the Talis Store");
Graph h = new Graph();
talis.Describe(h, TestUri);
Console.WriteLine("Retrieved OK");
Console.WriteLine();
foreach (Triple t in h.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
//Make a Sparql Query for the same stuff
Console.WriteLine("# Attempting to retrieve the same data from this Graph from the Talis Store using SPARQL");
Object results = talis.Query("SELECT * {?s ?p ?o . FILTER(?s = <" + TestUri + ">)}");
Console.WriteLine("Retrieved OK");
Console.WriteLine();
//Output the Result
if (results is SparqlResultSet)
{
foreach (SparqlResult result in (SparqlResultSet)results)
{
Console.WriteLine(result.ToString());
}
}
else if (results is Graph)
{
foreach (Triple t in ((Graph)results).Triples)
{
Console.WriteLine(t.ToString());
}
}
else
{
Console.WriteLine("Unexpected Results Object '" + results.GetType().ToString() + "'");
}
Console.WriteLine();
//Use a TalisGraph object to do the same thing
Console.WriteLine("# Attempting to retrieve the same data again using a TalisGraph object");
TalisGraph i = new TalisGraph(TestUri, talis);
Console.WriteLine("Retrieved OK");
Console.WriteLine();
foreach (Triple t in i.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
//Use the same object to Update the Store
Console.WriteLine("# Attempting to Update the Talis Store using the TalisGraph object");
if (!i.NamespaceMap.HasNamespace("eg")) {
i.NamespaceMap.AddNamespace("eg", new Uri("http://example.org/vehicles/"));
}
IUriNode spaceVehicle = i.CreateUriNode("eg:SpaceVehicle");
IUriNode subClass = i.CreateUriNode("rdfs:subClassOf");
IUriNode vehicle = i.CreateUriNode("eg:Vehicle");
i.Assert(new Triple(spaceVehicle, subClass, vehicle));
Console.WriteLine("Updated OK");
Console.WriteLine();
//Retrieve that Graph again
Console.WriteLine("# Retrieving the same data again to check that the Update was persisted OK");
TalisGraph j = new TalisGraph(new Uri("http://example.org/vehicles/SpaceVehicle"), talis);
Console.WriteLine("Retrieved OK");
Console.WriteLine();
foreach (Triple t in j.Triples)
{
Console.WriteLine(t.ToString());
}
Console.WriteLine();
}
catch (Exception ex)
{
HandleError(ex);
}
finally
{
output.Close();
}
}
public void InteropSemWebNativeStore()
{
//Get the Talis Connection
TalisPlatformConnector talis = new TalisPlatformConnector("rvesse-dev1", "rvesse", "4kn478wj");
Assert.IsNotNull(talis);
//Create a Talis Triple Store
TalisTripleStore store = new TalisTripleStore(talis);
//Create the Native Store Source
NativeStoreSource source = new NativeStoreSource(store);
Console.WriteLine("All Statements in the Store");
source.Select(new SemWebConsolePrinter());
Console.WriteLine();
Console.Write("Does a FordFiesta exist in the Store? ");
Console.WriteLine(source.Contains(new Entity("http://example.org/vehicles/FordFiesta")));
Console.WriteLine();
Console.Write("Does a Monkey exist in the Store? ");
Console.WriteLine(source.Contains(new Entity("http://example.org/Monkey")));
Console.WriteLine();
Console.Write("Do any Cars exist in the Store? ");
Statement cars = new Statement(null, new Entity(RdfSpecsHelper.RdfType), new Entity("http://example.org/vehicles/Car"));
Console.WriteLine(source.Contains(cars));
Console.WriteLine();
Console.Write("Do any Gorillas exist in the Store?");
Statement gorillas = new Statement(null, new Entity(RdfSpecsHelper.RdfType), new Entity("http://example.org/Gorilla"));
Console.WriteLine(source.Contains(gorillas));
Console.WriteLine();
Console.WriteLine("What Cars exists in the Store?");
source.Select(new Statement(null, new Entity(RdfSpecsHelper.RdfType), new Entity("http://example.org/vehicles/Car")), new SemWebConsolePrinter());
Console.WriteLine();
Console.WriteLine("Cars are their Speeds from the Store?");
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();
}