def graph(self, uri):
if self.query_type not in [CLEAR]:
raise ValueError('The specified <%s> query type does not support the CLEAR GRAPH clause' % (self.query_type))
if type(uri) not in (URIRef, Namespace) and not is_uri(uri):
raise ValueError('The argument is not a uri')
self._clear_uri = uri
return self
def into(self, *uris):
if self.query_type not in [INSERT_DATA, INSERT, LOAD]:
raise ValueError('The specified <%s> query type does not support the INTO clause' % (self.query_type))
if self.query_type is LOAD and len(uris) != 1:
raise ValueError('The LOAD query, supports only one uri for the INTO clause')
self._into_uri.extend([uri for uri in uris if type(uri) is URIRef or is_uri(uri)])
return self
def into(self, *uris):
if self.query_type not in [INSERT_DATA, INSERT]:
raise ValueError('The specified <%s> query type does not support the INTO clause' % (self.query_type))
if self.query_type is LOAD and len(uris) != 1:
raise ValueError('The LOAD query, supports only one uri for the INTO clause')
self._into_uri.extend([uri for uri in uris if type(uri) is URIRef or is_uri(uri)])
return self
def load(self, remote_uri):
if self.query_type not in [LOAD]:
raise ValueError('The specified <%s> query type does not support the LOAD clause' % (self.query_type))
if type(remote_uri) is not URIRef and not is_uri(remote_uri):
raise ValueError('The argument is not a uri')
self._remote_uri = remote_uri
return self
def load(self, remote_uri):
if self.query_type not in [LOAD]:
raise ValueError('The specified <%s> query type does not support the LOAD clause' % (self.query_type))
if type(remote_uri) is not URIRef and not is_uri(remote_uri):
raise ValueError('The argument is not a uri')
self._remote_uri = remote_uri
return self
def graph(self, uri):
if self.query_type not in [CLEAR]:
raise ValueError('The specified <%s> query type does not support the CLEAR GRAPH clause' % (self.query_type))
if type(uri) is not URIRef and not is_uri(uri):
raise ValueError('The argument is not a uri')
self._clear_uri = uri
return self
def from_(self, *uris):
if self.query_type not in [DELETE_DATA, DELETE]:
raise ValueError(
'The specified <%s> query type does not support the FROM clause'
% (self.query_type))
self._from_uri.extend(
[uri for uri in uris if type(uri) is URIRef or is_uri(uri)])
return self
def __uri(self, uri):
""" For **internal** use only, convert the `uri` to a `URIRef`. """
if not uri:
return None
if type(uri) is URIRef:
return uri
else:
if not is_uri(uri):
attrname = de_camel_case(uri, '_', DE_CAMEL_CASE_DEFAULT)
uri, _ = attr2rdf(attrname)
return URIRef(uri)
def __uri(self, uri):
""" For **internal** use only, convert the `uri` to a `URIRef`. """
if not uri:
return None
if type(uri) is URIRef:
return uri
else:
if not is_uri(uri):
attrname = de_camel_case(uri, '_', DE_CAMEL_CASE_DEFAULT)
uri, _ = attr2rdf(attrname)
return URIRef(uri)
def _term(self, term):
if type(term) in [URIRef, BNode]:
return '%s' % (term.n3())
elif type(term) in [str, unicode]:
if term.startswith('?'):
return '%s' % term
elif is_uri(term):
return '<%s>' % term
else:
return '"%s"' % term
elif type(term) is Literal:
return term.n3()
elif type(term) in [list, tuple]:
return '"%s"@%s' % (term[0], term[1])
elif type(term) is type and hasattr(term, 'uri'):
return '%s' % term.uri().n3()
elif hasattr(term, 'subject'):
return '%s' % term.subject.n3()
return term.__str__()
def _term(self, term):
if type(term) in [URIRef, BNode]:
return '%s' % (term.n3())
elif type(term) in [str, unicode]:
if term.startswith('?'):
return '%s' % term
elif is_uri(term):
return '<%s>' % term
else:
return '"%s"' % term
elif type(term) is Literal:
return term.n3()
elif type(term) in [list, tuple]:
return '"%s"@%s' % (term[0], term[1])
elif type(term) is type and hasattr(term, 'uri'):
return '%s' % term.uri().n3()
elif hasattr(term, 'subject'):
return '%s' % term.subject.n3()
return term.__str__()
def string_val(term):
if isinstance(term, (URIRef, BNode)):
return '%s' % (term.n3())
elif isinstance(term, str):
if term.startswith('?'):
return '%s' % term
elif is_uri(term):
return '<%s>' % term
else:
return '"%s"' % term
elif type(term) is Literal:
return term.n3()
elif isinstance(term, (list, tuple)):
return '"%s"@%s' % (term[0], term[1])
elif type(term) is type and hasattr(term, 'uri'):
return '%s' % term.uri().n3()
elif hasattr(term, 'subject'):
return '%s' % term.subject.n3()
return term.__str__()
def _term(self, term):
if isinstance(term, (URIRef, BNode)):
return u'{0:s}'.format
elif isinstance(term, (str, str)):
if term.startswith('?'):
return u'{0:s}'.format(term)
elif is_uri(term):
return u'<{0:s}>'.format(term)
else:
return u'"{0:s}"'.format(term)
elif type(term) is Literal:
return term.n3()
elif isinstance(term, (list, tuple)):
return '"{0:s}"@{1:s}'.format(term[0], term[1])
elif type(term) is type and hasattr(term, 'uri'):
return u'{0:s}'.format
elif hasattr(term, 'subject'):
return u'{0:s}'.format
return term.__str__()
def _term(self, term):
if type(term) in [URIRef, BNode]:
return u'{0:s}'.format
elif type(term) in [str, unicode]:
if term.startswith('?'):
return u'{0:s}'.format(term)
elif is_uri(term):
return u'<{0:s}>'.format(term)
else:
return u'"{0:s}"'.format(term)
elif type(term) is Literal:
return term.n3()
elif type(term) in [list, tuple]:
return '"{0:s}"@{1:s}'.format(term[0], term[1])
elif type(term) is type and hasattr(term, 'uri'):
return u'{0:s}'.format
elif hasattr(term, 'subject'):
return u'{0:s}'.format
return term.__str__()
def from_(self, *uris):
if self.query_type not in [DELETE_DATA, DELETE]:
raise ValueError('The specified <%s> query type does not support the FROM clause' % (self.query_type))
self._from_uri.extend([uri for uri in uris if type(uri) is URIRef or is_uri(uri)])
return self
