CompareRDF.py 文件源码

def complete_definition(subj: Identifier,
                        source_graph: Graph,
                        target_graph: Optional[SNOMEDGraph] = None) -> SNOMEDGraph:
    """
    Add a full definition for the supplied subject, following any object bnodes, to target_graph
    :param subj: URI or BNode for subject
    :param source_graph: Graph containing defininition
    :param target_graph: Graph to carry definition
    :return: target_graph
    """
    if not target_graph:
        target_graph = SNOMEDGraph()
    for p, o in source_graph.predicate_objects(subj):
        target_graph.add((subj, p, o))
        if isinstance(o, BNode):
            complete_definition(o, source_graph, target_graph)
    return target_graph