private static IGraph GetGraph(this ITripleStore store, Uri metaGraphUri, Uri graphBaseUri)
{
IGraph graph = store.Graphs.FirstOrDefault(item => item.BaseUri.AbsoluteUri == graphBaseUri.AbsoluteUri);
if (graph == null)
{
graph = store.AddGraph(graphBaseUri);
IGraph metaGraph = store.Graphs.FirstOrDefault(item => item.BaseUri.AbsoluteUri == metaGraphUri.AbsoluteUri);
if (metaGraph == null)
{
metaGraph = store.AddGraph(metaGraphUri);
}
metaGraph.Assert(graph.CreateUriNode(graphBaseUri), graph.CreateUriNode(Foaf.primaryTopic), graph.CreateUriNode(graphBaseUri));
}
return(graph);
}
private static void ExpandGraphs(this ITripleStore store, TripleStore targetStore, Uri metaGraphUri)
{
IGraph metaGraph = store.AddGraph(metaGraphUri);
foreach (Triple triple in targetStore.Triples)
{
IUriNode subject = (triple.Subject is IBlankNode ? targetStore.FindOwningSubject((IBlankNode)triple.Subject) : (IUriNode)triple.Subject);
if (subject != null)
{
IGraph graph = store.GetGraph(metaGraphUri, subject.Uri);
graph.Assert(graph.Import(triple));
}
}
}
