BATCAVE/status-daemon.py

#!/usr/bin/python
from __future__ import print_function
from copy import deepcopy
import daemon
import logging
import sys
import time

from ffstatus import *

INTERVAL = 15
LOGFILE = '/var/log/ffstatus.log'

DUMMY_MODE = 1

logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
fh = logging.FileHandler(LOGFILE)
fh.setFormatter(logging.Formatter('%(asctime)s [%(levelname)s] %(message)s', '%Y-%m-%d %H:%M:%S'))
logger.addHandler(fh)

logger.info('Starting up')

a = AlfredParser()
b = BatmanParser()
d = DashingClient('dashing.krombel.de', 'TODO')
g = GraphitePush('fdca:ffee:ff12:a254::da7a', 2003)
data = { }

if DUMMY_MODE:
	import os
	mydir = os.path.realpath(os.path.dirname(__file__))
	a.alfred_json = os.path.join(mydir, 'alfred-json')
	print('DUMMY.a =', a.alfred_json)
	b.batadv_vis = os.path.join(mydir, 'batadv_vis')
	print('DUMMY.b =', b.batadv_vis)
	g.dont_send = True

for i in [ ('AlfredParser', a), ('BatmanParser', b) ]:
	try:
		i[1].sanitycheck()
	except Exception as err:
		logger.critical(i[0] + '.sanitycheck() failed: ' + str(err))
		print('FAILED SANITY CHECK: ' + str(err))
		sys.exit(1)

daemon_context = daemon.DaemonContext(
	files_preserve = [ fh.stream ],
)
with daemon_context:
	while True:
		try:
			ts = int(time.time())
			logger.debug('Step 1/3: Fetching data ...')
			alfreddata = a.fetch()
			batmandata = b.fetch()
			newdata = dict_merge(alfreddata, batmandata)
			logger.info('Fetched data: {0} ALFRED with {1} BATMAN makes {2} total'.format(len(alfreddata), len(batmandata), len(newdata)))

			logger.debug('Step 2/3: Pushing update data ...')
			graphitedata = g.push(newdata, ts=ts)
			d.push(newdata)

			logger.info('Sent ' + str(graphitedata.count('\n')+1) + ' lines to Graphite.')

			logger.debug('Step 3/3: Merging current data ...')
			data = dict_merge(data, newdata)
			logger.info('I have data for ' + str(len(data)) + ' nodes.')
		except Exception as err:
			logger.error(str(err))

		time.sleep(INTERVAL)

	logger.info('Shutting down')