def __init__(self, http_endpoint="http://localhost:5000/"):
if not http_endpoint.endswith('/'):
http_endpoint = "%s/" % http_endpoint
self.http_endpoint = http_endpoint
self.sparql_endpoint = "%ssparql/" % http_endpoint
self.data_endpoint = "%sdata/" % http_endpoint
self.status_endpoint = "%sstatus/" % http_endpoint
self.rh = RequestHandler()
self.sh = SparqlResponseHandler()
class HTTP4Store(object):
def __init__(self, http_endpoint="http://localhost:5000/"):
if not http_endpoint.endswith('/'):
http_endpoint = "%s/" % http_endpoint
self.http_endpoint = http_endpoint
self.sparql_endpoint = "%ssparql/" % http_endpoint
self.data_endpoint = "%sdata/" % http_endpoint
self.status_endpoint = "%sstatus/" % http_endpoint
self.rh = RequestHandler()
self.sh = SparqlResponseHandler()
def status(self):
robj = self.rh.GET(self.status_endpoint)
assert robj.status == 200
status = {}
# Chop off the crud at the top
doc = ET.fromstring(robj.content.split('\n', 1)[-1])
body = doc.find('body')
for row in body.find('table').findall('tr'):
l,r = row.getchildren()
if l.text == "Running queries":
status['running'] = int(r.text)
elif l.text == "Outstanding queries":
status['outstanding'] = int(r.text)
status['kb'] = body.find('h2').text[3:]
return status
def sparql(self, query_string, accept="text/tab-separated-values", headers={}, get_raw_response_obj=False):
print 'CAZZI'
if accept:
headers['Accept'] = accept
resp_obj = self.rh.GET(self.sparql_endpoint, headers=headers, query=query_string)
if get_raw_response_obj:
return resp_obj
return self.sh.parse(resp_obj)
def add_from_uri(self, uri, accept="application/rdf+xml", headers={}):
if accept:
headers['Accept'] = accept
r_obj = self.rh.GET(uri, headers=headers)
assert r_obj.status == 200
return self.add_graph(uri, r_obj.content, content_type=r_obj.content_type)
def add_graph(self, uri, content, content_type="turtle"):
"""content_type := turtle|xml|nt|n3|trig
turtle, rdf/xml, ntriples, N3, and TriG respectively"""
headers = {}
headers['content-type'] = mapping_type.get(content_type, content_type)
# TODO - if content is a graph -> serialised form for posting
return self.rh.PUT("%s%s" % (self.sparql_endpoint, uri),
headers=headers,
body=content)
def append_graph(self, uri, content, content_type="turtle"):
"""content_type := turtle|xml|nt|n3|trig
turtle, rdf/xml, ntriples, N3, and TriG respectively"""
headers = {}
headers['content-type'] = mapping_type.get(content_type, 'application/x-turtle')
# TODO - if content is a graph -> serialised form for posting
params = {}
params['graph'] = uri
params['data'] = content
params['mime-type'] = headers['content-type']
resp_obj = self.rh.POST(self.data_endpoint,
headers=headers,
body=urlencode(params)
)
return resp_obj
def del_graph(self, uri):
resp_obj = self.rh.DELETE( "%s%s" % (self.sparql_endpoint, uri) )
assert resp_obj.status == 200
return resp_obj
