ogn-python/ogn/commands/logbook.py

167 wiersze
8.3 KiB
Python

# -*- coding: utf-8 -*-
from datetime import timedelta
from sqlalchemy.sql import func, null
from sqlalchemy import and_, or_
from sqlalchemy.sql.expression import true, false, label
from ogn.model import Device, TakeoffLanding, Airport
from ogn.commands.dbutils import session
from ogn.collect.logbook import compute_takeoff_and_landing
from manager import Manager
manager = Manager()
@manager.command
def compute():
"""Compute takeoffs and landings."""
print("Compute takeoffs and landings...")
result = compute_takeoff_and_landing.delay()
counter = result.get()
print("New/recalculated takeoffs/landings: {}".format(counter))
@manager.arg('utc_delta_hours', help='delta hours to utc (for local time logs)')
@manager.command
def show(airport_name, utc_delta_hours=0):
"""Show a logbook for <airport_name>."""
airport = session.query(Airport) \
.filter(Airport.name == airport_name) \
.first()
if (airport is None):
print('Airport "{}" not found.'.format(airport_name))
return
utc_timedelta = timedelta(hours=utc_delta_hours)
# make a query with current, previous and next "takeoff_landing" event, so we can find complete flights
sq = session.query(
TakeoffLanding.device_id,
func.lag(TakeoffLanding.device_id)
.over(
order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('device_id_prev'),
func.lead(TakeoffLanding.device_id)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('device_id_next'),
(TakeoffLanding.timestamp+utc_timedelta).label('timestamp'),
func.lag(TakeoffLanding.timestamp)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('timestamp_prev'),
func.lead(TakeoffLanding.timestamp+utc_timedelta)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('timestamp_next'),
TakeoffLanding.track,
func.lag(TakeoffLanding.track)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('track_prev'),
func.lead(TakeoffLanding.track)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('track_next'),
TakeoffLanding.is_takeoff,
func.lag(TakeoffLanding.is_takeoff)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('is_takeoff_prev'),
func.lead(TakeoffLanding.is_takeoff)
.over(order_by=and_(func.date(TakeoffLanding.timestamp+utc_timedelta),
TakeoffLanding.device_id,
TakeoffLanding.timestamp+utc_timedelta))
.label('is_takeoff_next')) \
.filter(TakeoffLanding.airport_id == airport.id) \
.subquery()
# find complete flights (with takeoff and landing) with duration < 1 day
complete_flight_query = session.query(sq.c.timestamp.label('reftime'), sq.c.device_id.label('device_id'), sq.c.timestamp.label('takeoff'), sq.c.track.label('takeoff_track'), sq.c.timestamp_next.label('landing'), sq.c.track_next.label('landing_track'), label('duration', sq.c.timestamp_next - sq.c.timestamp)) \
.filter(and_(sq.c.is_takeoff == true(), sq.c.is_takeoff_next == false())) \
.filter(sq.c.device_id == sq.c.device_id_next) \
.filter(sq.c.timestamp_next - sq.c.timestamp < timedelta(days=1))
# split complete flights (with takeoff and landing) with duration > 1 day into one takeoff and one landing
split_start_query = session.query(sq.c.timestamp.label('reftime'), sq.c.device_id.label('device_id'), sq.c.timestamp.label('takeoff'), sq.c.track.label('takeoff_track'), null().label('landing'), null().label('landing_track'), null().label('duration')) \
.filter(and_(sq.c.is_takeoff == true(), sq.c.is_takeoff_next == false())) \
.filter(sq.c.device_id == sq.c.device_id_next) \
.filter(sq.c.timestamp_next - sq.c.timestamp >= timedelta(days=1))
split_landing_query = session.query(sq.c.timestamp_next.label('reftime'), sq.c.device_id.label('device_id'), null().label('takeoff'), null().label('takeoff_track'), sq.c.timestamp_next.label('landing'), sq.c.track_next.label('landing_track'), null().label('duration')) \
.filter(and_(sq.c.is_takeoff == true(), sq.c.is_takeoff_next == false())) \
.filter(sq.c.device_id == sq.c.device_id_next) \
.filter(sq.c.timestamp_next - sq.c.timestamp >= timedelta(days=1))
# find landings without start
only_landings_query = session.query(sq.c.timestamp.label('reftime'), sq.c.device_id.label('device_id'), null().label('takeoff'), null().label('takeoff_track'), sq.c.timestamp.label('landing'), sq.c.track_next.label('landing_track'), null().label('duration')) \
.filter(sq.c.is_takeoff == false()) \
.filter(or_(sq.c.device_id != sq.c.device_id_prev,
sq.c.is_takeoff_prev == false()))
# find starts without landing
only_starts_query = session.query(sq.c.timestamp.label('reftime'), sq.c.device_id.label('device_id'), sq.c.timestamp.label('takeoff'), sq.c.track.label('takeoff_track'), null().label('landing'), null().label('landing_track'), null().label('duration')) \
.filter(sq.c.is_takeoff == true()) \
.filter(or_(sq.c.device_id != sq.c.device_id_next,
sq.c.is_takeoff_next == true()))
# unite all
union_query = complete_flight_query.union(
split_start_query,
split_landing_query,
only_landings_query,
only_starts_query) \
.subquery()
# get aircraft informations and sort all entries by the reference time
logbook_query = session.query(
union_query.c.reftime,
union_query.c.takeoff,
union_query.c.takeoff_track,
union_query.c.landing,
union_query.c.landing_track,
union_query.c.duration,
Device) \
.outerjoin(Device, union_query.c.device_id == Device.id) \
.order_by(union_query.c.reftime)
print('--- Logbook ({}) ---'.format(airport_name))
def none_datetime_replacer(datetime_object):
return '--:--:--' if datetime_object is None else datetime_object.time()
def none_track_replacer(track_object):
return '--' if track_object is None else round(track_object / 10.0)
def none_timedelta_replacer(timedelta_object):
return '--:--:--' if timedelta_object is None else timedelta_object
def none_registration_replacer(device_object):
return '[' + device_object.address + ']' if device_object.registration is None else device_object.registration
def none_aircraft_replacer(device_object):
return '(unknown)' if device_object.aircraft is None else device_object.aircraft
for [reftime, takeoff, takeoff_track, landing, landing_track, duration, device] in logbook_query.all():
print('%10s %8s (%2s) %8s (%2s) %8s %8s %s' % (
reftime.date(),
none_datetime_replacer(takeoff),
none_track_replacer(takeoff_track),
none_datetime_replacer(landing),
none_track_replacer(landing_track),
none_timedelta_replacer(duration),
none_registration_replacer(device),
none_aircraft_replacer(device)))