ogn-python/ogn/gateway/process_tools.py

127 wiersze
5.4 KiB
Python

from datetime import datetime, timedelta
from ogn.model import AircraftBeacon, ReceiverBeacon
from ogn.collect.database import upsert
# define message types we want to proceed
AIRCRAFT_BEACON_TYPES = ['aprs_aircraft', 'flarm', 'tracker', 'fanet', 'lt24', 'naviter', 'skylines', 'spider', 'spot']
RECEIVER_BEACON_TYPES = ['aprs_receiver', 'receiver']
# define fields we want to proceed
BEACON_KEY_FIELDS = ['name', 'receiver_name', 'timestamp']
AIRCRAFT_BEACON_FIELDS = ['location', 'altitude', 'dstcall', 'relay', 'track', 'ground_speed', 'address_type', 'aircraft_type', 'stealth', 'address', 'climb_rate', 'turn_rate', 'signal_quality', 'error_count', 'frequency_offset', 'gps_quality_horizontal', 'gps_quality_vertical', 'software_version', 'hardware_version', 'real_address', 'signal_power', 'distance', 'radial', 'quality', 'location_mgrs', 'location_mgrs_short', 'agl', 'receiver_id', 'device_id']
RECEIVER_BEACON_FIELDS = ['location', 'altitude', 'dstcall', 'relay', 'version', 'platform', 'cpu_load', 'free_ram', 'total_ram', 'ntp_error', 'rt_crystal_correction', 'voltage', 'amperage', 'cpu_temp', 'senders_visible', 'senders_total', 'rec_input_noise', 'senders_signal', 'senders_messages', 'good_senders_signal', 'good_senders', 'good_and_bad_senders']
class DummyMerger:
def __init__(self, callback):
self.callback = callback
def add_message(self, message):
self.callback.add_message(message)
def flush(self):
pass
class DbSaver:
def __init__(self, session):
self.session = session
self.aircraft_message_map = dict()
self.receiver_message_map = dict()
self.last_commit = datetime.utcnow()
def _put_in_map(self, message, my_map):
key = message['name'] + message['receiver_name'] + message['timestamp'].strftime('%s')
if key in my_map:
other = my_map[key]
merged = {k: message[k] if message[k] is not None else other[k] for k in message.keys()}
my_map[key] = merged
else:
my_map[key] = message
def add_message(self, message):
if message is None or ('raw_message' in message and message['raw_message'][0] == '#') or 'beacon_type' not in message:
return
if 'location_wkt' in message:
message['location'] = message.pop('location_wkt') # total_time_wasted_here = 3
if message['beacon_type'] in AIRCRAFT_BEACON_TYPES:
even_messages = {k: message[k] if k in message else None for k in BEACON_KEY_FIELDS + AIRCRAFT_BEACON_FIELDS}
self._put_in_map(message=even_messages, my_map=self.aircraft_message_map)
elif message['beacon_type'] in RECEIVER_BEACON_TYPES:
even_messages = {k: message[k] if k in message else None for k in BEACON_KEY_FIELDS + RECEIVER_BEACON_FIELDS}
self._put_in_map(message=even_messages, my_map=self.receiver_message_map)
else:
print("Ignore beacon_type: {}".format(message['beacon_type']))
return
elapsed_time = datetime.utcnow() - self.last_commit
if elapsed_time >= timedelta(seconds=5):
self.flush()
def flush(self):
if len(self.aircraft_message_map) > 0:
messages = list(self.aircraft_message_map.values())
upsert(session=self.session, model=AircraftBeacon, rows=messages, update_cols=AIRCRAFT_BEACON_FIELDS)
if len(self.receiver_message_map) > 0:
messages = list(self.receiver_message_map.values())
upsert(session=self.session, model=ReceiverBeacon, rows=messages, update_cols=RECEIVER_BEACON_FIELDS)
self.session.commit()
self.aircraft_message_map = dict()
self.receiver_message_map = dict()
self.last_commit = datetime.utcnow()
class DummySaver:
def add_message(self, message):
print(message)
def flush(self):
print("========== flush ==========")
import os, gzip, csv
class FileSaver:
def __init__(self):
self.aircraft_messages = list()
self.receiver_messages = list()
def open(self, path, reference_date_string):
aircraft_beacon_filename = os.path.join(path, 'aircraft_beacons.csv_' + reference_date_string + '.gz')
receiver_beacon_filename = os.path.join(path, 'receiver_beacons.csv_' + reference_date_string + '.gz')
if not os.path.exists(aircraft_beacon_filename) and not os.path.exists(receiver_beacon_filename):
self.fout_ab = gzip.open(aircraft_beacon_filename, 'wt')
self.fout_rb = gzip.open(receiver_beacon_filename, 'wt')
else:
raise FileExistsError
self.aircraft_writer = csv.writer(self.fout_ab, delimiter=',')
self.aircraft_writer.writerow(AircraftBeacon.get_columns())
self.receiver_writer = csv.writer(self.fout_rb, delimiter=',')
self.receiver_writer.writerow(ReceiverBeacon.get_columns())
return 1
def add_message(self, beacon):
if isinstance(beacon, AircraftBeacon):
self.aircraft_messages.append(beacon.get_values())
elif isinstance(beacon, ReceiverBeacon):
self.receiver_messages.append(beacon.get_values())
def flush(self):
self.aircraft_writer.writerows(self.aircraft_messages)
self.receiver_writer.writerows(self.receiver_messages)
self.aircraft_messages = list()
self.receiver_messages = list()
def close(self):
self.fout_ab.close()
self.fout_rb.close()