def data_timeframe(self, uuid):
"""
Returns the time frame (start and end date) for which data from the stream, identified by the UUID,
is available.
:param uuid:
:return:
"""
resp = JOb()
resp.uuid = uuid
try:
if ThreadedTriplestoreAdapter.triplestore:
sd = self.rm.getSensorDescriptionByUUID(uuid)
if sd:
data = ThreadedTriplestoreAdapter.triplestore.getStreamMinMaxDate(sd.graphName, formatSensorID(sd))
resp.status = "Ok"
resp.message = ""
resp.data = data
else:
raise Exception("no stream with given uuid known")
else:
resp.status = "Fail"
resp.message = "Triplestore not activated."
except Exception as e:
resp.status = "Fail"
resp.message = e.message
return resp.dumps()
def snapshot(self, uuid, start=None, end=None):
"""
Get previous observations
:param uuid: The uuid of the wrapper
:param start: The start date in the format %Y-%m-%dT%H:%M:%S
:param end: The end date in the format %Y-%m-%dT%H:%M:%S
:return: a JSON answer
"""
resp = JOb()
resp.uuid = uuid
try:
from virtualisation.resourcemanagement.resourcemanagement import ResourceManagement
if ResourceManagement.args.triplestore:
sd = self.rm.getSensorDescriptionByUUID(uuid)
if sd:
data = ThreadedTriplestoreAdapter.triplestore.getObservationGraph(sd.graphName, formatSensorID(sd), start, end, False)
resp.status = "Ok"
resp.message = ""
resp.data = data
else:
raise Exception("no stream with given uuid known")
else:
raise Exception("Triplestore not enabled in Resource Management")
except Exception as e:
resp.status = "Fail"
resp.message = e.message
return resp.dumps()
def get_description(self, uuid):
resp = JOb()
sd = self.rm.getSensorDescriptionByUUID(uuid)
if sd:
resp.status = "Ok"
resp.message = ""
resp.data = sd
else:
ed = self.rm.getEventDescriptionByUUID(uuid)
if ed:
resp.status = "Ok"
resp.message = ""
resp.data = ed
else:
resp.status = "Fail"
resp.message = "no stream with given uuid known"
return resp.dumps()
def get_static_stream_data(self, uuid):
resp = JOb()
resp.uuid = uuid
if uuid in self.static_stream_data_cache:
resp.status = "Ok"
resp.message = ""
resp.data = self.static_stream_data_cache[uuid]
else:
resp.status = "Fail"
resp.message = "No sensor stream with uuid " + uuid + " known."
return resp.dumps()
def snapshot_sql(self, uuid, start=None, end=None, format='json', last=False, fields=None, offset=0):
if self.rm.sql:
offset = int(offset)
observations = self.rm.sql.get_observations(uuid, start, end, format, last, fields, offset)
data = JOb()
data.data = observations
#TODO remove the 2 below
data.next_url = "/api/snapshot_sql2?uuid=%s%s%s%s%s%s%s" % (uuid,
"&start=" + start if start else "",
"&end=" + end if end else "" ,
"&format=" + format,
"&last=" + last if last else "",
"&fields=" + fields if fields else "",
"&offset=" + str(offset + self.rm.sql.PAGINATION_LIMIT)) if len(observations) == self.rm.sql.PAGINATION_LIMIT else ""
return data.dumps()
else:
return "Error. SQL feature not enabled in Resource Management"
def snapshot_last(self, uuid):
"""
Get previous observations
:param uuid: The uuid of the wrapper
:param start: The start date in the format %Y-%m-%dT%H:%M:%S
:param end: The end date in the format %Y-%m-%dT%H:%M:%S
:return: a JSON answer
"""
resp = JOb()
resp.uuid = uuid
if uuid in self.observation_cache:
resp.status = "Ok"
resp.message = ""
resp.data = self.observation_cache[uuid]
else:
resp.status = "Fail"
resp.message = "No observation with the UUID " + uuid + " cached."
return resp.dumps()
def data_timeframe_sql(self, uuid):
"""
Returns the time frame (start and end date) for which data from the stream, identified by the UUID,
is available.
:param uuid:
:return:
"""
resp = JOb()
resp.uuid = uuid
try:
if self.rm.sql:
data = self.rm.sql.data_timeframe(uuid)
resp.status = "Ok"
resp.message = ""
resp.data = data
else:
resp.status = "Fail"
resp.message = "SQL feature not activated."
except Exception as e:
resp.status = "Fail"
resp.message = e.message
return resp.dumps()
def snapshot_quality(self, uuid, start=None, end=None):
"""
Get previous quality annotations
:param uuid: The uuid of the wrapper/stream
:param start: The start date in the format %Y-%m-%dT%H:%M:%S
:param end: The end date in the format %Y-%m-%dT%H:%M:%S
:return: a JSON answer
"""
resp = JOb()
resp.uuid = uuid
resp.result = []
uuid = uuid.split(",")
try:
from virtualisation.resourcemanagement.resourcemanagement import ResourceManagement
if ResourceManagement.args.triplestore:
graphMap = {}
working_uuids = []
for _id in uuid:
sd = self.rm.getSensorDescriptionByUUID(_id)
if sd is not None:
if not graphMap.has_key(sd.graphName):
graphMap[sd.graphName] = [formatSensorID(sd)]
else:
graphMap[sd.graphName].append(formatSensorID(sd))
working_uuids.append(_id)
else:
d = JOb()
d.message = "Wrong UUID"
resp.result.append(JOb({"uuid": _id, "error": d}))
resp.status = "Ok"
sortedReturn = {}
for graph in graphMap:
tmpData = ThreadedTriplestoreAdapter.triplestore.getLastQoIData_List(graph, graphMap[graph], start, end)
if tmpData is None:
raise Exception("Virtuoso Exception or no data for given start/end date")
else:
if len(tmpData["results"]["bindings"]) == 0:
pass
else:
for key in tmpData["results"]["bindings"]:
sensorUUID = key["sensor"]["value"].replace("http://ict-citypulse.eu/SensorID-", "")
if sensorUUID in sortedReturn:
sortedReturn[sensorUUID].append(key)
else:
sortedReturn[sensorUUID] = []
sortedReturn[sensorUUID].append(key)
for _id in working_uuids:
if _id in sortedReturn:
data = []
for tmp in sortedReturn[_id]:
d = JOb()
d.time = tmp["resultTimeValue"]["value"]
d.data = tmp
data.append(d)
data.sort(cmp=lambda x, y: cmp(x.time, y.time))
resp.result.append(JOb({"uuid": _id, "dataset": data}))
else:
d = JOb()
d.message = "No data available"
resp.result.append(JOb({"uuid": _id, "error": d}))
resp.result.sort(cmp=lambda x, y: uuid.index(x.uuid) - uuid.index(y.uuid))
else:
raise Exception("Triplestore not enabled in Resource Management")
except Exception as e:
resp.status = "Fail"
resp.message = e.message
return resp.dumps()
