#!/usr/bin/env python
# pywws - Python software for USB Wireless Weather Stations
# http://github.com/jim-easterbrook/pywws
# Copyright (C) 2008-18 pywws contributors
# 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`.
"""
__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 pywws import DataStore
from pywws import Localisation
from pywws.LogData import DataLogger
from pywws.Logger import ApplicationLogger
from pywws import Process
from pywws 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)
# clear any processing backlog
Process.Process(params, raw_data, calib_data,
hourly_data, daily_data, monthly_data)
# 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 as 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 as msg:
print('Error: %s\n' % msg, file=sys.stderr)
print(usage, file=sys.stderr)
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('Error: 1 argument required\n', file=sys.stderr)
print(usage, file=sys.stderr)
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 as e:
logger.exception(str(e))