internal void Initialise()
{
IEnumerable <Uri> localGraphs = Storage.ListGraphs();
foreach (IUriNode spinLibrary in Configuration.GetTriplesWithPredicateObject(RDF.PropertyType, SPIN.ClassLibraryOntology).Select(t => t.Subject))
{
// TODO maybe clean this to use SPINImports instead
if (localGraphs.Contains(spinLibrary.Uri))
{
IGraph library = new ThreadSafeGraph();
library.BaseUri = spinLibrary.Uri;
Storage.LoadGraph(library, spinLibrary.Uri);
spinProcessor.Initialise(library);
}
else
{
spinProcessor.Initialise(spinLibrary.Uri);
}
}
// TODO explore the dataset to add spin:import triples
Configuration.Changed += OnDatasetDescriptionChanged;
}
internal static SpinDatasetDescription Load(IUpdateableStorage storage, Uri datasetUri = null, IEnumerable <Uri> graphsUri = null)
{
SpinDatasetDescription dataset;
if (datasetUri == null)
{
SparqlResultSet datasetDiscovery = (SparqlResultSet)storage.Query("SELECT ?dataset WHERE {?dataset a <" + SD.ClassDataset.Uri.ToString() + ">}");
int datasetCount = datasetDiscovery.Results.Count;
if (datasetCount > 1)
{
throw new Exception("More than one dataset has been found in the current storage provider. Please specify which to use through the datasetUri parameter.");
}
else if (datasetCount == 1)
{
datasetUri = ((IUriNode)datasetDiscovery.Results.FirstOrDefault().Value("dataset")).Uri;
}
else
{
datasetUri = UriFactory.Create(RDFRuntime.DATASET_NS_URI + Guid.NewGuid().ToString());
}
}
dataset = new SpinDatasetDescription(datasetUri);
storage.LoadGraph(dataset, datasetUri);
dataset.BaseUri = datasetUri;
Triple isUpdateControlledDataset = dataset.GetTriplesWithPredicate(RDFRuntime.PropertyUpdatesDataset).FirstOrDefault();
if (isUpdateControlledDataset != null)
{
dataset._sourceUri = ((IUriNode)isUpdateControlledDataset.Object).Uri;
}
else
{
dataset.Assert(RDFUtil.CreateUriNode(datasetUri), RDF.PropertyType, SD.ClassDataset);
}
return(dataset);
}