ogn-python/ogn/db_analysis.py

64 wiersze
2.2 KiB
Python

from datetime import datetime, timedelta
from sqlalchemy.sql import func
from sqlalchemy import distinct, and_
from ogn.db import session
from ogn.model import Receiver
back_24h = datetime.utcnow() - timedelta(days=1)
receiver_messages_per_24h = 24*60 / 5
def get_receiver_info():
sq = session.query(distinct(Receiver.name).label('name'), func.max(Receiver.timestamp).label('lastseen'), func.count(Receiver.name).label('messages_count')).\
filter(Receiver.timestamp > back_24h).\
group_by(Receiver.name).\
subquery()
query = session.query(Receiver, sq.c.messages_count).\
filter(and_(Receiver.name == sq.c.name, Receiver.timestamp == sq.c.lastseen)).\
order_by(Receiver.name)
print('--- Receivers ---')
for [receiver, messages_count] in query.all():
print('%9s: %3d%% avail, %s, %s ' % (receiver.name, 100.0*float(messages_count/receiver_messages_per_24h), receiver.version, receiver.platform))
def get_software_stats():
sq = session.query(Receiver.name, func.max(Receiver.timestamp).label('lastseen')).\
filter(Receiver.timestamp > back_24h).\
group_by(Receiver.name).\
subquery()
versions = session.query(distinct(Receiver.version), func.count(Receiver.version)).\
filter(and_(Receiver.name == sq.c.name, Receiver.timestamp == sq.c.lastseen)).\
group_by(Receiver.version).\
order_by(Receiver.version)
print('\n--- Versions ---')
for [version, count] in versions.all():
print('%5s: %s' % (version, count))
def get_hardware_stats():
sq = session.query(Receiver.name, func.max(Receiver.timestamp).label('lastseen')).\
filter(Receiver.timestamp > back_24h).\
group_by(Receiver.name).\
subquery()
platforms = session.query(distinct(Receiver.platform), func.count(Receiver.platform)).\
filter(and_(Receiver.name == sq.c.name, Receiver.timestamp == sq.c.lastseen)).\
group_by(Receiver.platform).\
order_by(Receiver.platform)
print('\n--- Platforms ---')
for [platform, count] in platforms.all():
print('%7s: %s' % (platform, count))
if __name__ == '__main__':
get_receiver_info()
get_software_stats()
get_hardware_stats()