public void Persist1()
{
LinqTripleStore store = new LinqTripleStore(CreateMemoryStore());
Track t = new Track()
{
AlbumName = "Test Album",
ArtistName = "Some Artist",
Comment = "blah de blah",
GenreName = "Easy Listening",
InstanceUri = "http://example.org/music/someAlbum/tracks/1",
Title = "Track 1",
Rating = 5,
Year = "2010"
};
Assert.IsTrue(store.SupportsPersistence, "Persistence should be supported by in-memory stores");
Console.WriteLine(store.UpdateProcessor.GetSaveCommandText(t, null));
store.UpdateProcessor.SaveObject(t, null);
IQueryable<Track> qry = new RdfDataContext(store).ForType<Track>();
IQueryable<Track> q = from x in qry
where x.ArtistName == "Some Artist"
select x;
Assert.IsTrue(q.Count() > 0, "Expected 1 or more results");
Assert.IsTrue(q.Count() == 1, "Expected only 1 result");
}
public void PersistToGraph1()
{
LinqTripleStore store = new LinqTripleStore(CreateMemoryStore());
Track t = new Track()
{
AlbumName = "Test Album",
ArtistName = "Some Artist",
Comment = "blah de blah",
GenreName = "Easy Listening",
InstanceUri = "http://example.org/music/someAlbum/tracks/1",
Title = "Track 1",
Rating = 5,
Year = "2010"
};
Assert.IsTrue(store.SupportsPersistence, "Persistence should be supported by in-memory stores");
String text = store.UpdateProcessor.GetSaveCommandText(t, "http://example.org/someGraph");
Console.WriteLine(text);
Assert.IsTrue(text.Contains("GRAPH <"), "Persistence Command should have contained a GRAPH clause");
store.UpdateProcessor.SaveObject(t, "http://example.org/someGraph");
RdfDataContext context = new RdfDataContext(store);
IQueryable<Track> qry = context.ForType<Track>();
IQueryable<Track> q = from x in qry
where x.ArtistName == "Some Artist"
select x;
Assert.IsTrue(q.Count() > 0, "Expected 1 or more results");
Assert.IsTrue(q.Count() == 1, "Expected only 1 result");
//Try setting Graph to non-existent Graph - should then throw an error
try
{
context.DefaultGraph = "http://example.org/noSuchGraph";
int count = q.Count();
Assert.Fail("Should have thrown an error as tried to query a non-existent Graph");
}
catch
{
Console.WriteLine("Errored as expected when a non-existent Graph was used");
}
//Try setting Graph to correct Graph, should then get the 1 result as expected
context.DefaultGraph = "http://example.org/someGraph";
Assert.IsTrue(q.Count() == 1, "Expected only 1 result");
}
public void Add(Track t)
{
string uri = OwlClassSupertype.GetOntologyBaseUri(typeof(Track));
if (!namespaces.ContainsValue(uri))
{
namespaces.Add("generatedNamespaceChar" + nscount++, uri);
}
store.Add(t);
}
private string GenTrackName(Track track)
{
return OwlClassSupertype.GetInstanceBaseUri(typeof(Track)) + "_" + HttpUtility.UrlEncode(track.FileLocation.GetHashCode().ToString());
}
