def has_bssid_high_confidence(self, bssid):
if USE_FILE and not bssid.startswith(FAKE_BSSID_PREFIX):
result = file_map.has_key(bssid)
if not result:
logger.warn('Unknown bssid: %s' % bssid)
return result
else:
if not self.has_bssid(bssid):
logger.warn('Unknown bssid: %s' % bssid)
return False
_, stop_probability, total = self.get_stop_id(bssid)
if total < config.stop_discovery_count_thresh:
return False
if stop_probability < config.stop_discovery_probability_thresh:
return False
return True
def get_stop_id(self, bssid):
if USE_FILE and not bssid.startswith(FAKE_BSSID_PREFIX):
if file_map.has_key(bssid):
return file_map[bssid], 1, 1
else:
logger.warn('Unknown bssid: %s' % bssid)
return stops.NOSTOP_ID, 0, 0
else:
p = get_redis_pipeline()
p.zrange("bssid:%s:counters" % (bssid), -1, -1, withscores=True)
p.get("bssid:%s:total" % (bssid))
res = p.execute()
counts = [x[1] for x in res[0]]
stop_id, score = res[0][counts.index(max(counts))]
stop_id = int(stop_id)
total = res[1]
stop_probability = float(score)/float(total)
return stop_id, stop_probability, total
