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twitterd.py
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twitterd.py
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#!/usr/bin/env python
'''Python download daemon.
'''
import argparse
import sys
import os
import analysis.datafetch.twitter_fetch as tw
import logging
import logging.config
import json
import settings
LOG = logging.getLogger(__name__)
class Twitterd(object):
''' Twitter Daemon Class
'''
CMDS = ['stream_filter', 'search']
NORTHANTS_BOX = '-1.386293,51.985165,-0.282167,52.650010'
def __init__(self, args):
self.init_args()
self.args = self.get_args(args)
# print(self.args)
self.settings = self.read_settings(self.args.settings[0])
self.init_logging(settings.LOGGING)
self.fetcher = tw.create_datafetcher(self.settings["twitter"])
self.cmd_map = {
self.CMDS[0]: tw.DataFetcher.Cmd.stream_filter,
self.CMDS[1]: tw.DataFetcher.Cmd.search,
}
def read_settings(self, settings_filename):
settings_dict = {}
with open(settings_filename, "r") as settings_file:
settings_dict = json.load(settings_file)
return settings_dict
def init_logging(self, log_settings):
logging.config.dictConfig(log_settings)
def init_args(self):
""" Initialize Arg parser
"""
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('--outdir', metavar='OUTDIR', type=str, nargs=1,
required=True, help='Output Directory')
parser.add_argument('--max-time',
metavar='SECONDS',
type=int, nargs='?',
required=False,
help='Number of Seconds to run ' +
'before termination')
parser.add_argument('--cmd',
metavar='CMD',
choices=self.CMDS,
type=str,
nargs=1,
required=True,
help='Command Name')
parser.add_argument('--settings',
metavar='SETTINGSFILE',
type=str,
nargs=1,
required=True,
help='Command Name')
self.parser = parser
def get_args(self, args):
""" Parse the arguments, and return a Namespace object
"""
return self.parser.parse_args(args)
def main(self):
""" Main entry point for daemon
"""
# pdb.set_trace()
LOG.info("starting up...")
try:
self.download_data()
except:
LOG.exception("Unable to exec command")
return
def download_data(self):
""" Run a twitter command and concatenate results to file
"""
output_filename = os.path.join(self.args.outdir[0],
"twitter_data.json")
errors_filename = os.path.join(self.args.outdir[0],
"twitter_errors.txt")
max_time = self.args.max_time if (hasattr(self.args,
"max_time")) \
else None
kwargs = {}
kwargs["locations"] = self.NORTHANTS_BOX
if max_time is not None:
kwargs["timeout"] = max_time
kwargs["track"] = None
kwargs["include_entities"] = 1
out_file = open(output_filename, "w")
err_file = open(errors_filename, "w")
command = self.cmd_map[self.args.cmd[0]]
try:
status = self.fetcher.download_data(out_file,
err_file,
command=command,
verbose=True,
**kwargs)
LOG.info("status=%d", status)
finally:
out_file.close()
err_file.close()
def main():
""" Read the command line args and start off the daemon
"""
LOG.info("Started")
# program_name = sys.argv[0]
daemon_cmd = sys.argv[1]
handlers = LOG.handlers
# keep_fds = [handler.stream.fileno() for handler in handlers]
if daemon_cmd == "start":
twitterd = Twitterd(sys.argv[2:])
def entry():
twitterd.main()
LOG.info("Daemonizing")
"""
daemon = Daemonize(app=program_name,
pid="twitter_daemon.pid",
action=entry,
keep_fds=keep_fds)
LOG.info("Daemonized")
import pdb
pdb.set_trace()
daemon.start()
LOG.error("Exiting")
"""
try:
entry()
except:
LOG.exception("Fatal Exception")
raise
elif daemon_cmd == "stop":
pass
elif daemon_cmd == "restart":
pass
if __name__ == '__main__':
main()