Source code for pywws.LiveLog

#!/usr/bin/env python

# pywws - Python software for USB Wireless Weather Stations
# http://github.com/jim-easterbrook/pywws
# Copyright (C) 2008-14  Jim Easterbrook  jim@jim-easterbrook.me.uk

# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

"""Get weather data, store it, and process it.

Run this continuously, having set what tasks are to be done. This
script can also be run with the ``pywws-livelog`` command. ::
%s
For more information on using ``LiveLog.py``, see
:doc:`../guides/livelogging`.

"""

from __future__ import absolute_import

__docformat__ = "restructuredtext en"
__usage__ = """
 usage: %s [options] data_dir
 options are:
  -h      or --help      display this help
  -l file or --log file  write log information to file
  -v      or --verbose   increase amount of reassuring messages
 data_dir is the root directory of the weather data (e.g. ~/weather/data)
"""
__doc__ %= __usage__ % ('python -m pywws.LiveLog')

from datetime import datetime, timedelta
import getopt
import logging
import os
import sys
import time

from . import DataStore
from . import Localisation
from .LogData import DataLogger
from .Logger import ApplicationLogger
from . import Process
from . import Tasks

[docs]def LiveLog(data_dir): logger = logging.getLogger('pywws.LiveLog') params = DataStore.params(data_dir) status = DataStore.status(data_dir) # localise application Localisation.SetApplicationLanguage(params) # open data file stores raw_data = DataStore.data_store(data_dir) calib_data = DataStore.calib_store(data_dir) hourly_data = DataStore.hourly_store(data_dir) daily_data = DataStore.daily_store(data_dir) monthly_data = DataStore.monthly_store(data_dir) # create a DataLogger object datalogger = DataLogger(params, status, raw_data) # create a RegularTasks object asynch = eval(params.get('config', 'asynchronous', 'False')) tasks = Tasks.RegularTasks(params, status, raw_data, calib_data, hourly_data, daily_data, monthly_data, asynch=asynch) # get live data try: for data, logged in datalogger.live_data( logged_only=(not tasks.has_live_tasks())): if logged: # process new data Process.Process(params, raw_data, calib_data, hourly_data, daily_data, monthly_data) # do tasks tasks.do_tasks() else: tasks.do_live(data) except Exception, ex: logger.exception(ex) finally: tasks.stop_thread() return 0
[docs]def main(argv=None): if argv is None: argv = sys.argv usage = (__usage__ % (argv[0])).strip() try: opts, args = getopt.getopt(argv[1:], "hl:v", ['help', 'log=', 'verbose']) except getopt.error, msg: print >>sys.stderr, 'Error: %s\n' % msg print >>sys.stderr, usage return 1 # process options logfile = None verbose = 0 for o, a in opts: if o in ('-h', '--help'): print __doc__.split('\n\n')[0] print usage return 0 elif o in ('-l', '--log'): logfile = a elif o in ('-v', '--verbose'): verbose += 1 # check arguments if len(args) != 1: print >>sys.stderr, 'Error: 1 argument required\n' print >>sys.stderr, usage return 2 logger = ApplicationLogger(verbose, logfile) return LiveLog(args[0])
if __name__ == "__main__": logger = logging.getLogger('pywws') try: sys.exit(main()) except KeyboardInterrupt: pass except Exception, e: logger.exception(str(e))