tp2query_twitter.py 文件源码

def _frament_fill_meta(self, tpq, fragment, last_result, total_nb_triples, nb_triple_per_page, request, tpf_url):
        meta_graph = self._tpf_uri(tpf_url, 'metadata')
        fragment.add_graph(meta_graph)
        dataset_base = self._tpf_uri(tpf_url)
        source = URIRef(request.build_absolute_uri())
        dataset_template = Literal('%s%s' % (dataset_base, '{?subject,predicate,object}'))
        data_graph = self._tpf_uri(tpf_url, 'dataset')
        tp_node = BNode('triplePattern')
        subject_node = BNode('subject')
        predicate_node = BNode('predicate')
        object_node = BNode('object')
        HYDRA = Namespace("http://www.w3.org/ns/hydra/core#")
        VOID = Namespace("http://rdfs.org/ns/void#")
        FOAF = Namespace("http://xmlns.com/foaf/0.1/")
        DCTERMS = Namespace("http://purl.org/dc/terms/")

        fragment.add_meta_quad(meta_graph, FOAF['primaryTopic'], dataset_base, meta_graph)
        fragment.add_meta_quad(data_graph, HYDRA['member'], data_graph, meta_graph)
        fragment.add_meta_quad(data_graph, RDF.type, VOID['Dataset'], meta_graph)
        fragment.add_meta_quad(data_graph, RDF.type, HYDRA['Collection'], meta_graph)
        fragment.add_meta_quad(data_graph, VOID['subset'], source, meta_graph)
        fragment.add_meta_quad(data_graph, VOID['uriLookupEndpoint'], dataset_template, meta_graph)
        fragment.add_meta_quad(data_graph, HYDRA['search'], tp_node, meta_graph)
        fragment.add_meta_quad(tp_node, HYDRA['template'], dataset_template, meta_graph)
        fragment.add_meta_quad(tp_node, HYDRA['variableRepresentation'], HYDRA['ExplicitRepresentation'], meta_graph)
        fragment.add_meta_quad(tp_node, HYDRA['mapping'], subject_node, meta_graph)
        fragment.add_meta_quad(tp_node, HYDRA['mapping'], predicate_node, meta_graph)
        fragment.add_meta_quad(tp_node, HYDRA['mapping'], object_node, meta_graph)
        fragment.add_meta_quad(subject_node, HYDRA['variable'], Literal("subject"), meta_graph)
        fragment.add_meta_quad(subject_node, HYDRA['property'], RDF.subject, meta_graph)
        fragment.add_meta_quad(predicate_node, HYDRA['variable'], Literal("predicate"), meta_graph)
        fragment.add_meta_quad(predicate_node, HYDRA['property'], RDF.predicate, meta_graph)
        fragment.add_meta_quad(object_node, HYDRA['variable'], Literal("object"), meta_graph)
        fragment.add_meta_quad(object_node, HYDRA['property'], RDF.object, meta_graph)

        fragment.add_meta_quad(dataset_base, VOID['subset'], source, meta_graph)
        fragment.add_meta_quad(source, RDF.type, HYDRA['PartialCollectionView'], meta_graph)
        fragment.add_meta_quad(source, DCTERMS['title'], Literal("TPF Twitter search API 1.1"), meta_graph)
        fragment.add_meta_quad(source, DCTERMS['description'], Literal("Triple Pattern from the twitter api matching the pattern {?s=%s, ?p=%s, ?o=%s}" % (tpq.subject, tpq.predicate, tpq.obj)), meta_graph)
        fragment.add_meta_quad(source, DCTERMS['source'], data_graph, meta_graph)
        fragment.add_meta_quad(source, HYDRA['totalItems'], Literal(total_nb_triples, datatype=XSD.int), meta_graph)
        fragment.add_meta_quad(source, VOID['triples'], Literal(total_nb_triples, datatype=XSD.int), meta_graph)
        fragment.add_meta_quad(source, HYDRA['itemsPerPage'], Literal(nb_triple_per_page, datatype=XSD.int), meta_graph)
        fragment.add_meta_quad(source, HYDRA['first'], self._tpf_url(dataset_base, 1, tpq.subject, tpq.predicate, tpq.obj), meta_graph)
        if tpq.page > 1:
            fragment.add_meta_quad(source, HYDRA['previous'], self._tpf_url(dataset_base, tpq.page - 1, tpq.subject, tpq.predicate, tpq.obj), meta_graph)
        if not last_result:
            fragment.add_meta_quad(source, HYDRA['next'], self._tpf_url(dataset_base, tpq.page + 1, tpq.subject, tpq.predicate, tpq.obj), meta_graph)
        fragment.add_prefix('twittertpf', Namespace("%s#" % tpf_url[:-1]))
        fragment.add_prefix('void', VOID)
        fragment.add_prefix('foaf', FOAF)
        fragment.add_prefix('hydra', HYDRA)
        fragment.add_prefix('purl', Namespace('http://purl.org/dc/terms/'))