def jld_callback(s, p, o):
"""
Insert extracted (s, p, o) to an rdflib graph.
:param s: subject
:param p: predicate
:param o: object
"""
#print "Entrant (s,p,o) : (", s, ",", p, ",", o, ")"
# Subject analysis
if s[:2] == "_:":
s = BNode(s[2:])
else:
s = URIRef(s, base_uri)
# Object analysis
# The dictionary can be much more complex
if isinstance(o, dict):
if "@id" in o:
o = o["@id"]
if o[:2] == "_:":
o = BNode(o[2:])
else:
o = URIRef(o, base_uri)
else:
assert "@value" in o
o = Literal(
o["@value"],
lang = o.get("@language"),
datatype = o.get("@type"),
)
else:
o = Literal(o)
# Predicate analysis
if "@type" in p:
p = RDF.type
# Ensure that object is really an URIRef, JSON-LD 3.3
o = URIRef(o, base_uri)
elif p.startswith("x-rev:"):
p = URIRef(p[6:], base_uri)
s, o = o, s
else:
p = URIRef(p, base_uri)
#print "Sortant (s,p,o) : (", s, ",", p, ",", o, ")"
graph.add((s, p, o))
return (s, p, o)
