sintonia/python_apps/airtime_analyzer/airtime_analyzer/airtime_analyzer.py

86 lines
2.9 KiB
Python

"""Contains the main application class for airtime_analyzer.
"""
import logging
import logging.handlers
import sys
import signal
import traceback
import config_file
from functools import partial
from metadata_analyzer import MetadataAnalyzer
from replaygain_analyzer import ReplayGainAnalyzer
from status_reporter import StatusReporter
from message_listener import MessageListener
class AirtimeAnalyzerServer:
"""A server for importing uploads to Airtime as background jobs.
"""
# Constants
_LOG_PATH = "/var/log/airtime/airtime_analyzer.log"
# Variables
_log_level = logging.INFO
def __init__(self, rmq_config_path, http_retry_queue_path, debug=False):
# Dump a stacktrace with 'kill -SIGUSR2 <PID>'
signal.signal(signal.SIGUSR2, lambda sig, frame: AirtimeAnalyzerServer.dump_stacktrace())
# Configure logging
self.setup_logging(debug)
# Read our rmq config file
rmq_config = config_file.read_config_file(rmq_config_path)
# Start up the StatusReporter process
StatusReporter.start_thread(http_retry_queue_path)
# Start listening for RabbitMQ messages telling us about newly
# uploaded files. This blocks until we recieve a shutdown signal.
self._msg_listener = MessageListener(rmq_config)
StatusReporter.stop_thread()
def setup_logging(self, debug):
"""Set up nicely formatted logging and log rotation.
Keyword arguments:
debug -- a boolean indicating whether to enable super verbose logging
to the screen and disk.
"""
if debug:
self._log_level = logging.DEBUG
else:
#Disable most pika/rabbitmq logging:
pika_logger = logging.getLogger('pika')
pika_logger.setLevel(logging.CRITICAL)
# Set up logging
logFormatter = logging.Formatter("%(asctime)s [%(module)s] [%(levelname)-5.5s] %(message)s")
rootLogger = logging.getLogger()
rootLogger.setLevel(self._log_level)
fileHandler = logging.handlers.RotatingFileHandler(filename=self._LOG_PATH, maxBytes=1024*1024*30,
backupCount=8)
fileHandler.setFormatter(logFormatter)
rootLogger.addHandler(fileHandler)
consoleHandler = logging.StreamHandler()
consoleHandler.setFormatter(logFormatter)
rootLogger.addHandler(consoleHandler)
@classmethod
def dump_stacktrace(stack):
''' Dump a stacktrace for all threads '''
code = []
for threadId, stack in sys._current_frames().items():
code.append("\n# ThreadID: %s" % threadId)
for filename, lineno, name, line in traceback.extract_stack(stack):
code.append('File: "%s", line %d, in %s' % (filename, lineno, name))
if line:
code.append(" %s" % (line.strip()))
logging.info('\n'.join(code))