server_util.py - mozsearch

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# Copyright 2020, Google Inc.

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"""Server related utilities."""

import logging

import logging.handlers

import threading

import time

from mod_pywebsocket import common

from mod_pywebsocket import util

def _get_logger_from_class(c):

    return logging.getLogger('%s.%s' % (c.__module__, c.__name__))

def configure_logging(options):

    logging.addLevelName(common.LOGLEVEL_FINE, 'FINE')

    logger = logging.getLogger()

    logger.setLevel(logging.getLevelName(options.log_level.upper()))

    if options.log_file:

        handler = logging.handlers.RotatingFileHandler(options.log_file, 'a',

                                                       options.log_max,

                                                       options.log_count)

    else:

        handler = logging.StreamHandler()

    formatter = logging.Formatter(

        '[%(asctime)s] [%(levelname)s] %(name)s: %(message)s')

    handler.setFormatter(formatter)

    logger.addHandler(handler)

    deflate_log_level_name = logging.getLevelName(

        options.deflate_log_level.upper())

    _get_logger_from_class(util._Deflater).setLevel(deflate_log_level_name)

    _get_logger_from_class(util._Inflater).setLevel(deflate_log_level_name)

class ThreadMonitor(threading.Thread):

    daemon = True

    def __init__(self, interval_in_sec):

        threading.Thread.__init__(self, name='ThreadMonitor')

        self._logger = util.get_class_logger(self)

        self._interval_in_sec = interval_in_sec

    def run(self):

        while True:

            thread_name_list = []

            for thread in threading.enumerate():

                thread_name_list.append(thread.name)

            self._logger.info("%d active threads: %s",

                              threading.active_count(),

                              ', '.join(thread_name_list))

            time.sleep(self._interval_in_sec)

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