kopia lustrzana https://github.com/glidernet/ogn-python
120 wiersze
5.1 KiB
Python
120 wiersze
5.1 KiB
Python
from sqlalchemy.sql import func, null
|
|
from sqlalchemy.sql.functions import coalesce
|
|
from sqlalchemy import and_, or_
|
|
|
|
from celery.utils.log import get_task_logger
|
|
|
|
from ogn.model import Device, AddressOrigin, Receiver, ReceiverBeacon
|
|
from ogn.utils import get_ddb, get_country_code
|
|
|
|
from ogn.collect.celery import app
|
|
|
|
|
|
logger = get_task_logger(__name__)
|
|
|
|
|
|
def update_devices(session, origin, devices):
|
|
session.query(Device) \
|
|
.filter(Device.address_origin == origin) \
|
|
.delete()
|
|
|
|
session.bulk_save_objects(devices)
|
|
session.commit()
|
|
|
|
return len(devices)
|
|
|
|
|
|
@app.task
|
|
def import_ddb():
|
|
"""Import registered devices from the DDB."""
|
|
|
|
logger.info("Import registered devices fom the DDB...")
|
|
counter = update_devices(app.session, AddressOrigin.ogn_ddb, get_ddb())
|
|
logger.info("Imported %i devices." % counter)
|
|
|
|
|
|
@app.task
|
|
def import_file(path='tests/custom_ddb.txt'):
|
|
"""Import registered devices from a local file."""
|
|
|
|
logger.info("Import registered devices from '{}'...".format(path))
|
|
counter = update_devices(app.session, AddressOrigin.user_defined, get_ddb(path))
|
|
logger.info("Imported %i devices." % counter)
|
|
|
|
|
|
@app.task
|
|
def update_receivers():
|
|
"""Update the receiver table."""
|
|
## get current receiver data
|
|
last_entry_sq = app.session.query(coalesce(func.max(Receiver.lastseen), '2015-01-01 00:00:00').label('last_entry')) \
|
|
.subquery()
|
|
|
|
last_receiver_beacon_sq = app.session.query(ReceiverBeacon.name, func.min(ReceiverBeacon.timestamp).label('firstseen'), func.max(ReceiverBeacon.timestamp).label('lastseen')) \
|
|
.filter(ReceiverBeacon.timestamp >= last_entry_sq.c.last_entry) \
|
|
.group_by(ReceiverBeacon.name) \
|
|
.subquery()
|
|
|
|
## update existing receivers
|
|
sq = app.session.query(ReceiverBeacon.name, ReceiverBeacon.latitude, ReceiverBeacon.longitude, ReceiverBeacon.altitude, last_receiver_beacon_sq.c.firstseen, last_receiver_beacon_sq.c.lastseen, ReceiverBeacon.version, ReceiverBeacon.platform) \
|
|
.filter(and_(ReceiverBeacon.name == last_receiver_beacon_sq.c.name, ReceiverBeacon.timestamp == last_receiver_beacon_sq.c.lastseen)) \
|
|
.subquery()
|
|
|
|
# set country code to None if lat or lon changed
|
|
upd = app.session.query(Receiver) \
|
|
.filter(and_(Receiver.name == sq.c.name,
|
|
or_(Receiver.latitude != sq.c.latitude,
|
|
Receiver.longitude != sq.c.longitude)
|
|
)
|
|
) \
|
|
.update({"latitude": sq.c.latitude,
|
|
"longitude": sq.c.longitude,
|
|
"country_code": None})
|
|
|
|
logger.info("Count of receivers who changed lat or lon: {}".format(upd))
|
|
app.session.commit()
|
|
|
|
# update lastseen of known receivers
|
|
upd = app.session.query(Receiver) \
|
|
.filter(Receiver.name == sq.c.name) \
|
|
.update({"altitude": sq.c.altitude,
|
|
"lastseen": sq.c.lastseen,
|
|
"version": sq.c.version,
|
|
"platform": sq.c.platform})
|
|
|
|
logger.info("Count of receivers who where updated: {}".format(upd))
|
|
|
|
## add new receivers
|
|
empty_sq = app.session.query(ReceiverBeacon.name, ReceiverBeacon.latitude, ReceiverBeacon.longitude, ReceiverBeacon.altitude, last_receiver_beacon_sq.c.firstseen, last_receiver_beacon_sq.c.lastseen, ReceiverBeacon.version, ReceiverBeacon.platform) \
|
|
.filter(and_(ReceiverBeacon.name == last_receiver_beacon_sq.c.name,
|
|
ReceiverBeacon.timestamp == last_receiver_beacon_sq.c.lastseen)) \
|
|
.outerjoin(Receiver, Receiver.name == ReceiverBeacon.name) \
|
|
.filter(Receiver.name == null()) \
|
|
.order_by(ReceiverBeacon.name)
|
|
|
|
for receiver_beacon in empty_sq.all():
|
|
receiver = Receiver()
|
|
receiver.name = receiver_beacon.name
|
|
receiver.latitude = receiver_beacon.latitude
|
|
receiver.longitude = receiver_beacon.longitude
|
|
receiver.altitude = receiver_beacon.altitude
|
|
receiver.firstseen = receiver_beacon.firstseen
|
|
receiver.lastseen = receiver_beacon.lastseen
|
|
receiver.version = receiver_beacon.version
|
|
receiver.platform = receiver_beacon.platform
|
|
|
|
app.session.add(receiver)
|
|
logger.info("{} added".format(receiver.name))
|
|
|
|
app.session.commit()
|
|
|
|
# update country code if None
|
|
unknown_country_query = app.session.query(Receiver) \
|
|
.filter(Receiver.country_code == null()) \
|
|
.order_by(Receiver.name)
|
|
|
|
for receiver in unknown_country_query.all():
|
|
receiver.country_code = get_country_code(receiver.latitude, receiver.longitude)
|
|
logger.info("Updated country_code for {} to {}".format(receiver.name, receiver.country_code))
|
|
|
|
app.session.commit()
|