161 lines
4.3 KiB
Python
161 lines
4.3 KiB
Python
# -*- coding: utf-8 -*-
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from datetime import datetime
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from datetime import timedelta
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from configobj import ConfigObj
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import sys
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import time
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import logging.config
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import telnetlib
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import calendar
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import math
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import traceback
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import os
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from pypofetch import PypoFetch
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from pypoliqqueue import PypoLiqQueue
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from Queue import Empty, Queue
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from threading import Thread
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from api_clients import api_client
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from std_err_override import LogWriter
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from timeout import ls_timeout
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# configure logging
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logging_cfg = os.path.join(os.path.dirname(__file__), "logging.cfg")
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logging.config.fileConfig(logging_cfg)
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logger = logging.getLogger()
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LogWriter.override_std_err(logger)
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#need to wait for Python 2.7 for this..
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#logging.captureWarnings(True)
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PUSH_INTERVAL = 2
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def is_stream(media_item):
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return media_item['type'] == 'stream_output_start'
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def is_file(media_item):
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return media_item['type'] == 'file'
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class PypoPush(Thread):
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def __init__(self, q, telnet_lock, pypo_liquidsoap, config):
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Thread.__init__(self)
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self.api_client = api_client.AirtimeApiClient()
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self.queue = q
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self.telnet_lock = telnet_lock
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self.config = config
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self.pushed_objects = {}
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self.logger = logging.getLogger('push')
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self.current_prebuffering_stream_id = None
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self.queue_id = 0
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self.future_scheduled_queue = Queue()
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self.pypo_liquidsoap = pypo_liquidsoap
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self.plq = PypoLiqQueue(self.future_scheduled_queue, \
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self.pypo_liquidsoap, \
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self.logger)
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self.plq.daemon = True
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self.plq.start()
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def main(self):
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loops = 0
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heartbeat_period = math.floor(30 / PUSH_INTERVAL)
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media_schedule = None
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while True:
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try:
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media_schedule = self.queue.get(block=True)
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except Exception, e:
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self.logger.error(str(e))
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raise
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else:
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self.logger.debug(media_schedule)
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#separate media_schedule list into currently_playing and
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#scheduled_for_future lists
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currently_playing, scheduled_for_future = \
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self.separate_present_future(media_schedule)
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self.pypo_liquidsoap.verify_correct_present_media(currently_playing)
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self.future_scheduled_queue.put(scheduled_for_future)
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if loops % heartbeat_period == 0:
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self.logger.info("heartbeat")
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loops = 0
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loops += 1
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def separate_present_future(self, media_schedule):
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tnow = datetime.utcnow()
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present = []
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future = {}
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sorted_keys = sorted(media_schedule.keys())
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for mkey in sorted_keys:
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media_item = media_schedule[mkey]
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diff_td = tnow - media_item['start']
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diff_sec = self.date_interval_to_seconds(diff_td)
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if diff_sec >= 0:
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present.append(media_item)
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else:
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future[mkey] = media_item
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return present, future
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def date_interval_to_seconds(self, interval):
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"""
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Convert timedelta object into int representing the number of seconds. If
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number of seconds is less than 0, then return 0.
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"""
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seconds = (interval.microseconds + \
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(interval.seconds + interval.days * 24 * 3600) * 10 ** 6) / float(10 ** 6)
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return seconds
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@ls_timeout
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def stop_web_stream_all(self):
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try:
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self.telnet_lock.acquire()
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tn = telnetlib.Telnet(self.config['LS_HOST'], self.config['LS_PORT'])
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#msg = 'dynamic_source.read_stop_all xxx\n'
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msg = 'http.stop\n'
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self.logger.debug(msg)
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tn.write(msg)
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msg = 'dynamic_source.output_stop\n'
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self.logger.debug(msg)
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tn.write(msg)
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msg = 'dynamic_source.id -1\n'
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self.logger.debug(msg)
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tn.write(msg)
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tn.write("exit\n")
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self.logger.debug(tn.read_all())
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except Exception, e:
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self.logger.error(str(e))
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finally:
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self.telnet_lock.release()
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def run(self):
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try: self.main()
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except Exception, e:
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top = traceback.format_exc()
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self.logger.error('Pypo Push Exception: %s', top)
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