def to_rdf(self, subj: BNode, namespace: Namespace, graph: Graph,
node_cache: NodeCache) -> None:
"""Graph this link on a BNode in a Graph using a given Namespace to create the full
predicate.
Args:
subj: subject portion of triple - graph this link's pred, obj against it.
namespace: RDF namespace to use for this triple's predicate
graph: RDF graph
node_cache: NodeCache to use to find cached nodes.
"""
link_node = node_cache.setdefault(self.obj, URIRef(self.obj))
graph.add((subj, getattr(namespace, self.pred), link_node))
def to_rdf(self, namespace: Namespace, graph: Graph, node_cache: NodeCache) -> None:
"""Graph this Resource as a URIRef on a Graph.
Args:
namespace: RDF namespace to use for predicates and objects when graphing
this resource's links
graph: RDF graph
node_cache: NodeCache to use for any cached URIRef lookups
"""
node = node_cache.setdefault(self.resource_id, URIRef(self.resource_id))
graph.add((node, RDF.type, getattr(namespace, self.type_name)))
graph.add((node, getattr(namespace, "id"), Literal(self.resource_id)))
for link in self.links:
link.to_rdf(subj=node, namespace=namespace, graph=graph, node_cache=node_cache)
