def _getStatementsSparQL(self, subject=None, predicate=None, object=None):
if not subject is None and not Uri.matchesUriSyntax(subject):
raise ValueError('subject must be an URI')
if not predicate is None and not Uri.matchesUriSyntax(predicate):
raise ValueError('predicate must be an URI')
yield "SELECT DISTINCT"
if subject is None:
yield " ?s"
if predicate is None:
yield " ?p"
if object is None:
yield " ?o"
if (subject and predicate and object):
yield " *"
yield " WHERE {"
yield " " + ('<%s>' % subject if subject else "?s")
yield " " + ('<%s>' % predicate if predicate else "?p")
yield " " + (['"%s"', '<%s>'][Uri.matchesUriSyntax(object)] % object if object else "?o")
yield " }"
def _getStatementsResults(self, jsonString, subject, predicate, object):
jsonData = loads(jsonString)
if not subject is None:
subject = Uri(subject)
if not predicate is None:
predicate = Uri(predicate)
if not object is None:
object = Uri(object) if Uri.matchesUriSyntax(object) else Literal(object)
for binding in jsonData['results']['bindings']:
resultSubject = self._fromBinding(binding, 's', subject)
resultPredicate = self._fromBinding(binding, 'p', predicate)
resultObject = self._fromBinding(binding, 'o', object)
yield resultSubject, resultPredicate, resultObject
def testCreate(self):
u = Uri.fromDict({"type": "uri", "value": "http://www.rnaproject.org/data/rnax/odw/InformationConcept"})
self.assertNotEquals("http://www.rnaproject.org/data/rnax/odw/InformationConcept", u)
self.assertEquals("http://www.rnaproject.org/data/rnax/odw/InformationConcept", str(u))
self.assertEquals(u, Uri('http://www.rnaproject.org/data/rnax/odw/InformationConcept'))