def handle_stop(self, pvt):
"""Handle the stop point.
"""
flag = self.check_timestamp(int(pvt['gps_time']))
if not flag:
return
tid = pvt['dev_id']
stop_key = get_stop_key(tid)
stop = self.redis.getvalue(stop_key)
distance_key = get_distance_key(tid)
distance = self.redis.get(distance_key)
if not distance:
distance = 0
last_pvt_key = get_last_pvt_key(tid)
last_pvt = self.redis.getvalue(last_pvt_key)
if last_pvt:
distance = float(distance) + lbmphelper.get_distance(int(last_pvt["lon"]), int(last_pvt["lat"]),
int(pvt["lon"]),
int(pvt["lat"]))
self.redis.setvalue(distance_key, distance, time=EVENTER.STOP_EXPIRY)
if pvt['speed'] > LIMIT.SPEED_LIMIT: # is moving
if stop: #NOTE: time_diff is too short, drop the point.
if pvt["gps_time"] - stop['start_time'] < 60: # 60 seconds
_stop = self.db.get("SELECT distance FROM T_STOP WHERE lid =%s", stop['lid'])
if _stop:
tmp_dis = _stop['distance']
else:
tmp_dis = 0
distance = float(distance) + tmp_dis
self.db.execute("DELETE FROM T_STOP WHERE lid = %s",
stop['lid'])
self.redis.delete(stop_key)
self.redis.setvalue(distance_key, distance, time=EVENTER.STOP_EXPIRY)
logging.info("[EVENTER] Stop point is droped: %s", stop)
else: # close a stop point
self.redis.delete(stop_key)
self.db.execute("UPDATE T_STOP SET end_time = %s WHERE lid = %s",
pvt["gps_time"], stop['lid'])
logging.info("[EVENTER] Stop point is closed: %s", stop)
else:
pass
else: # low speed, may stop
if stop:
logging.info("[EVENTER] Stop point is updated: %s", stop)
stop['end_time'] = pvt["gps_time"]
self.redis.setvalue(stop_key, stop, time=EVENTER.STOP_EXPIRY)
logging.info("[EVENTER] Stop point is updated: %s", stop)
else: # create a new stop point
pvt = lbmphelper.handle_location(pvt, self.redis, cellid=True, db=self.db)
lid = insert_location(pvt, self.db, self.redis)
stop = dict(lid=lid,
tid=tid,
start_time=pvt["gps_time"],
end_time=0,
pre_lon=pvt["lon"],
pre_lat=pvt["lat"],
distance=distance)
self.db.execute("INSERT INTO T_STOP(lid, tid, start_time, distance) VALUES(%s, %s, %s, %s)",
lid, tid, pvt["gps_time"], distance)
self.redis.setvalue(stop_key, stop, time=EVENTER.STOP_EXPIRY)
self.redis.delete(distance_key)
logging.info("[EVENTER] Stop point is created: %s", stop)
def handle_position_info(self, location):
"""Handle the info of position, include PVT(T11), CALL(T3)
"""
location = DotDict(location)
current_time = int(time.time())
#NOTE: Now, it is seldom appears
if location.Tid == EVENTER.TRIGGERID.CALL:
if location['gps_time'] > (current_time + 24*60*60):
logging.info("[EVENTER] The location's (gps_time - current_time) is more than 24 hours, so drop it:%s", location)
return
location = lbmphelper.handle_location(location, self.redis,
cellid=True, db=self.db)
## check regions
#for region in regions:
# region_location = self.check_region_event(location, region)
# if region_location and region_location['t'] == EVENTER.INFO_TYPE.REPORT:
# self.handle_report_info(region_location)
location['category'] = EVENTER.CATEGORY.REALTIME
update_terminal_dynamic_info(self.db, self.redis, location)
if location.get('lat') and location.get('lon'):
self.realtime_location_hook(location)
# NOTE: For pvt(T11)
elif location.Tid == EVENTER.TRIGGERID.PVT:
#NOTE: get speed_limit
# make pvts sortd according gsp_time
pvts = sorted(location['pvts'], key=lambda x:x['gps_time'])
for pvt in pvts:
#for pvt in location['pvts']:
# The 'future time' is drop
if pvt['gps_time'] > (current_time + 24*60*60):
logging.info("[EVENTER] The location's (gps_time - current_time) is more than 24 hours, so drop it:%s", pvt)
continue
# get available location from lbmphelper
pvt['dev_id'] = location['dev_id']
pvt['Tid'] = location['Tid']
pvt['valid'] = GATEWAY.LOCATION_STATUS.SUCCESS
pvt['type'] = 0
#NOTE: handle stop
self.handle_stop(pvt)
#NOTE: handle region
self.handle_region(pvt)
#NOTE: handle single
self.handle_single(pvt)
#NOTE: handle speed
self.handle_speed(pvt)
#NOTE: the time of keep last_pvt is import. First check single, then keep pvt
last_pvt_key = get_last_pvt_key(location['dev_id'])
last_pvt = pvt
self.redis.setvalue(last_pvt_key, last_pvt, time=EVENTER.STOP_EXPIRY)
# NOTE: not offset it
#location = lbmphelper.handle_location(pvt, self.redis,
# cellid=False, db=self.db)
#NOTE: mileage
pvt['category'] = EVENTER.CATEGORY.REALTIME
if pvt.get('lat') and pvt.get('lon'):
insert_location(pvt, self.db, self.redis)
#NOTE: handle mileage
self.handle_mileage(pvt)
self.push_to_client(pvt)
else:
location.category = EVENTER.CATEGORY.UNKNOWN
self.unknown_location_hook(location)
def check_single_event(self, ori_location, single):
"""Check enter or out single
workflow:
get old_single_status accordinding to single and tid
get old_single_time accordinding to single and tid
check single_status according distance, then keep single_status in redis
if not old_single_status:
skip
if old_single_time and location's gps_time <= old_region_time:
skip
check single event according to single_status and old_single_staus
if single event:
keep single_status, single_time in redis
"""
if not (ori_location and single):
logging.info("[EVENTER] query data is invalid, ori_location: %s, single: %s, do not check.",
ori_location, single)
return None
if not (ori_location['cLat'] and ori_location['cLon']):
logging.info("[EVENTER] location is invalid, ori_location: %s, do not check.",
ori_location)
return None
# BIG NOTE: python grammar, shallow copy will change origen data.
location = copy.deepcopy(dict(ori_location))
location = DotDict(location)
old_single_status_key = get_single_status_key(location['dev_id'], single.single_id)
old_single_status = self.redis.getvalue(old_single_status_key)
old_single_time_key = get_single_time_key(location['dev_id'], single.single_id)
old_single_time = self.redis.getvalue(old_single_time_key)
if single.single_shape == UWEB.SINGLE_SHAPE.CIRCLE:
# get distance beteween now location and the centre of the region
distance = lbmphelper.get_distance(single.single_longitude,
single.single_latitude,
location.cLon,
location.cLat)
if distance >= single.single_radius:
single_status = EVENTER.CATEGORY.SINGLE_OUT
rname = EVENTER.RNAME.SINGLE_OUT
else:
single_status = EVENTER.CATEGORY.SINGLE_ENTER
rname = EVENTER.RNAME.SINGLE_ENTER
elif single.single_shape == UWEB.SINGLE_SHAPE.POLYGON:
polygon = {'name':'',
'points':[]}
points = single.points
point_lst = points.split(':')
for point in point_lst:
latlon = point.split(',')
dct = {'lat':float(latlon[0])/3600000,
'lon':float(latlon[1])/3600000}
polygon['points'].append(dct)
polygon['name'] = single.single_name
if PtInPolygon(location, polygon):
single_status = EVENTER.CATEGORY.SINGLE_ENTER
rname = EVENTER.RNAME.SINGLE_ENTER
else:
single_status = EVENTER.CATEGORY.SINGLE_OUT
rname = EVENTER.RNAME.SINGLE_OUT
else: #NOTE: here should never occur.
logging.error("[EVENTER] unknow single_shape: %s, single: %s, skip it",
single.single_shape, single)
#NOTE: skip the time
if old_single_time:
if int(location['gps_time']) <= int(old_single_time):
logging.info("[EVENTER] current location's gps_time: %s is not bigger than old_single_time: %s, skip it",
location['gps_time'], old_single_time)
return location
logging.info('old_single_status_key: %s, single_status: %s', old_single_status_key, single_status)
# keep region status
self.redis.setvalue(old_single_status_key, single_status)
logging.info("rname:%s, old status:%s, current status:%s, tid:%s",
safe_unicode(single.single_name), old_single_status, single_status, location['dev_id'])
if not old_single_status:
logging.info("[EVENTER] old_single_status: %s is invalid, skip it",
old_single_status)
# skip the first region event
return location
# check single event
if single_status != old_single_status:
self.redis.setvalue(old_single_status_key, single_status)
self.redis.setvalue(old_single_time_key, location['gps_time'])
# 2: complete the location
location['category'] = single_status
location['t'] = EVENTER.INFO_TYPE.REPORT #NOTE: t is need
location['rName'] = rname
location['single'] = single
location['single_id'] = single.single_id
# 3. keep it in db
# out first, then enter
if single_status == EVENTER.CATEGORY.SINGLE_ENTER:
single_event = self.db.get("SELECT id as seid, tid, sid, start_time, end_time"
" FROM T_SINGLE_EVENT"
" WHERE tid = %s "
" AND sid = %s"
" AND start_time !=0"
" AND end_time = 0 "
" ORDER BY id DESC LIMIT 1",
location['dev_id'],
location['single_id'])
if not single_event:
pass
else:
self.db.execute("UPDATE T_SINGLE_EVENT"
" SET end_time = %s"
" WHERE id = %s",
location['gps_time'],
single_event['seid'])
elif single_status == EVENTER.CATEGORY.SINGLE_OUT:
last_pvt_key = get_last_pvt_key(location['dev_id'])
last_pvt = self.redis.getvalue(last_pvt_key)
if last_pvt:
gps_time = last_pvt['gps_time']
else:
gps_time = location['gps_time']
self.db.execute("INSERT INTO T_SINGLE_EVENT(tid, sid, start_time)"
" VALUES(%s, %s, %s)",
location['dev_id'],
location['single_id'],
gps_time)
return location