def _get_or_create_session(self, sensor_id):
sensor_sessions = [
s for s in self._cb.get_object(
"{cblr_base}/session?active_only=true".format(
cblr_base=self.cblr_base))
if s["sensor_id"] == sensor_id and s["status"] in ("pending",
"active")
]
if len(sensor_sessions) > 0:
session_id = sensor_sessions[0]["id"]
else:
session_id = self._create_session(sensor_id)
try:
res = poll_status(self._cb,
"{cblr_base}/session/{0}".format(
session_id, cblr_base=self.cblr_base),
desired_status="active",
delay=1,
timeout=360)
except (ObjectNotFoundError, TimeoutError):
# "close" the session, otherwise it will stay in a pending state
self._close_session(session_id)
# the Cb server will return a 404 if we don't establish a session in time, so convert this to a "timeout"
raise TimeoutError(
uri="{cblr_base}/session/{0}".format(session_id,
cblr_base=self.cblr_base),
message="Could not establish session with sensor {0}".format(
sensor_id),
error_code=404)
else:
return session_id, res
def _get_or_create_session(self, sensor_id):
session_id = self._create_session(sensor_id)
try:
res = poll_status(self._cb, "{cblr_base}/session/{0}".format(session_id, cblr_base=self.cblr_base),
desired_status="ACTIVE", delay=1, timeout=360)
except Exception:
# "close" the session, otherwise it will stay in a pending state
self._close_session(session_id)
# the Cb server will return a 404 if we don't establish a session in time, so convert this to a "timeout"
raise TimeoutError(uri="{cblr_base}/session/{0}".format(session_id, cblr_base=self.cblr_base),
message="Could not establish session with sensor {0}".format(sensor_id),
error_code=404)
else:
return session_id, res