private Uri ReadRemoteTripleFormat(Uri graph, Uri location, RdfSerializationFormat format)
{
using (VDS.RDF.Storage.VirtuosoManager m = new VDS.RDF.Storage.VirtuosoManager(CreateConnectionString()))
{
using (VDS.RDF.Graph g = new VDS.RDF.Graph())
{
UriLoader.Load(g, location);
g.BaseUri = graph;
m.SaveGraph(g);
}
}
return(graph);
}
private void AddResources(IModel model, Stream stream)
{
string connectionString = "Server=localhost:1111;uid=dba;pwd=dba;Charset=utf-8";
using (StreamReader reader = new StreamReader(stream))
{
string data = reader.ReadToEnd();
using (VDS.RDF.Storage.VirtuosoManager m = new VDS.RDF.Storage.VirtuosoManager(connectionString))
{
using (VDS.RDF.Graph graph = new VDS.RDF.Graph())
{
IRdfReader parser = dotNetRDFStore.GetReader(RdfSerializationFormat.N3);
parser.Load(graph, new StringReader(data));
graph.BaseUri = model.Uri;
m.UpdateGraph(model.Uri, graph.Triples, new List <Triple>());
}
}
}
}
public void Write(Stream fs, Uri graph, RdfSerializationFormat format)
{
using (VDS.RDF.Storage.VirtuosoManager m = new VDS.RDF.Storage.VirtuosoManager(CreateConnectionString()))
{
using (VDS.RDF.Graph g = new VDS.RDF.Graph())
{
m.LoadGraph(g, graph);
StreamWriter sw = new StreamWriter(fs, Encoding.UTF8);
switch (format)
{
case RdfSerializationFormat.RdfXml:
{
VDS.RDF.Writing.RdfXmlWriter wr = new VDS.RDF.Writing.RdfXmlWriter();
wr.Save(g, sw);
break;
}
}
}
}
}
private Uri ReadTripleFormat(TextReader reader, Uri graphUri, RdfSerializationFormat format, bool update)
{
using (VDS.RDF.Storage.VirtuosoManager m = new VDS.RDF.Storage.VirtuosoManager(CreateConnectionString()))
{
using (VDS.RDF.Graph graph = new VDS.RDF.Graph())
{
IRdfReader parser = dotNetRDFStore.GetReader(format);
parser.Load(graph, reader);
graph.BaseUri = graphUri;
if (update)
{
m.UpdateGraph(graphUri, graph.Triples, new Triple[] {});
}
else
{
m.SaveGraph(graph);
}
}
}
return(graphUri);
}
private Uri ReadQuadFormat(TextReader reader, Uri graph, RdfSerializationFormat format, bool update)
{
using (VDS.RDF.Storage.VirtuosoManager m = new VDS.RDF.Storage.VirtuosoManager(CreateConnectionString()))
{
using (VDS.RDF.ThreadSafeTripleStore store = new VDS.RDF.ThreadSafeTripleStore())
{
VDS.RDF.Parsing.TriGParser p = new TriGParser();
p.Load(store, reader);
foreach (var x in store.Graphs)
{
if (update)
{
m.UpdateGraph(x.BaseUri, x.Triples, new Triple[] { });
}
else
{
m.SaveGraph(x);
}
}
}
}
return(graph);
}
