public void SaveToFile(string filePath, DatasourceFileType fileType)
{
try
{
switch (fileType)
{
case DatasourceFileType.Rdfxml: // RDF/XML
FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
rxtw.Save(myGraph, filePath);
break;
case DatasourceFileType.NTriples: // NTriples
NTriplesWriter wr = new NTriplesWriter();
wr.Save(myGraph, filePath);
break;
}
}
catch (Exception ex)
{
MySoapFault fault = new MySoapFault();
fault.Operation = "SaveToFile";
fault.Reason = "Error in saving datasource from graph to file .";
fault.Details = ex.Message;
fault.MoreDetails = ex.StackTrace;
throw new FaultException <MySoapFault>(fault);
}
}
private void SaveButton_Click(object sender, RoutedEventArgs e)
{
try
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.InitialDirectory = Environment.CurrentDirectory;
sfd.Filter = "RDF Files (*.rdf)|*.rdf|Turtle Files (*.ttl)|*.ttl|All Files (*.*)|*.*";
if (sfd.ShowDialog().Value)
{
string filePath = sfd.FileName;
switch (ModeComboBox.SelectedIndex)
{
case 0: // RDF/XML
FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
rxtw.Save(myGraph, filePath);
break;
case 1: // NTriples
NTriplesWriter wr = new NTriplesWriter();
wr.Save(myGraph, filePath);
break;
}
MessageBox.Show("Your Current Graph Saved Successfully", "Save Graph", MessageBoxButton.OK,
MessageBoxImage.Information);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message + "\n" + ex.StackTrace, "ERROR", MessageBoxButton.OK);
}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
/* Connect To DBPedia
* //First define a SPARQL Endpoint for DBPedia
* SparqlRemoteEndpoint endpoint = new SparqlRemoteEndpoint(new Uri("http://dbpedia.org/sparql"));
*
* //Next define our query
* //We're going to ask DBPedia to describe the first thing it finds which is a Person
* String query = "DESCRIBE ?person WHERE {?person a <http://dbpedia.org/ontology/Person>} LIMIT 1";
*
* //Get the result
* Graph g = endpoint.QueryWithResultGraph(query);
*
* FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
* rxtw.Save(g, "dbp.txt");*/
Graph g = new Graph();
UriNode omid = g.CreateUriNode(new Uri("http://www.omidey.co.cc"));
UriNode says = g.CreateUriNode(new Uri("http://www.sample.com/says"));
LiteralNode hello = g.CreateLiteralNode("Hello World!!!");
LiteralNode sallam = g.CreateLiteralNode("Sallam 2nyaaa!!!", "fa");
g.Assert(new Triple(omid, says, hello));
g.Assert(new Triple(omid, says, sallam));
//foreach (Triple t in g.Triples)
//{
// MessageBox.Show(t.ToString());
//}
String query = "SELECT ?n ?p WHERE {?n ?p 'Hello World!!!'}"; // like select * => "SELECT ?n ?p ?m WHERE {?n ?p ?m}"
SparqlResultSet res = (SparqlResultSet)g.ExecuteQuery(query);
foreach (SparqlResult r in res)
{
MessageBox.Show(r.ToString());
}
FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
rxtw.Save(g, "omid.txt");
//TripleStore ts = new TripleStore();
//Object res = ts.ExecuteQuery("SELECT * WHERE {?s ?p ?o}");
//if (res is SparqlResultSet)
//{
// SparqlResultSet results = (SparqlResultSet)res;
// foreach (SparqlResult sr in results)
// {
// Console.WriteLine(sr.ToString());
// }
//}
}
private void button1_Click(object sender, RoutedEventArgs e)
{
// Connect To DBPedia
//First define a SPARQL Endpoint for DBPedia
SparqlRemoteEndpoint endpoint = new SparqlRemoteEndpoint(new Uri("http://dbpedia.org/sparql"));
//Next define our query
//We're going to ask DBPedia to describe the first thing it finds which is a Person
String query = "DESCRIBE ?person WHERE {?person a <http://dbpedia.org/ontology/Person>} LIMIT 1";
//Get the result
Graph g = endpoint.QueryWithResultGraph(query);
FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
rxtw.Save(g, "dbp.txt");
//foreach (Triple t in g.Triples)
//{
// MessageBox.Show(t.ToString());
//}
////String query = "SELECT ?n ?p WHERE {?n ?p 'Hello World!!!'}"; // like select * => "SELECT ?n ?p ?m WHERE {?n ?p ?m}"
////SparqlResultSet res = (SparqlResultSet)myGraph.ExecuteQuery(query);
////foreach (SparqlResult r in res)
////{
//// MessageBox.Show(r.ToString());
////}
////FastRdfXmlWriter rxtw = new FastRdfXmlWriter();
////rxtw.Save(myGraph, "omid.txt");
//TripleStore ts = new TripleStore();
//Object res = ts.ExecuteQuery("SELECT * WHERE {?s ?p ?o}");
//if (res is SparqlResultSet)
//{
// SparqlResultSet results = (SparqlResultSet)res;
// foreach (SparqlResult sr in results)
// {
// Console.WriteLine(sr.ToString());
// }
//}
}
