""" Copyright (c) 2018-2019 Intel Corporation Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. """ import logging as log import os import re handler_num = 0 class LvlFormatter(log.Formatter): format_dict = { log.DEBUG: "[ %(asctime)s ] [ %(levelname)s ] [ %(module)s:%(lineno)d ] %(msg)s", log.INFO: "[ %(levelname)s ] %(msg)s", log.WARNING: "[ WARNING ] %(msg)s", log.ERROR: "[ %(levelname)s ] %(msg)s", log.CRITICAL: "[ %(levelname)s ] %(msg)s", 'framework_error': "[ FRAMEWORK ERROR ] %(msg)s" } def __init__(self, lvl, fmt=None): log.Formatter.__init__(self, fmt) self.lvl = lvl def format(self, record: log.LogRecord): if self.lvl == 'DEBUG': self._style._fmt = self.format_dict[log.DEBUG] else: self._style._fmt = self.format_dict[record.levelno] if 'is_warning' in record.__dict__.keys(): self._style._fmt = self.format_dict[log.WARNING] if 'framework_error' in record.__dict__.keys(): self._style._fmt = self.format_dict['framework_error'] return log.Formatter.format(self, record) class TagFilter(log.Filter): def __init__(self, regex: str): self.regex = regex def filter(self, record: log.LogRecord): if record.__dict__['funcName'] == 'load_grammar': # for nx not to log into our logs return False if self.regex: if 'tag' in record.__dict__.keys(): tag = record.__dict__['tag'] return re.findall(self.regex, tag) else: return False return True # if regex wasn't set print all logs def init_logger(lvl: str, silent: bool): global handler_num log_exp = os.environ.get('MO_LOG_PATTERN') if silent: lvl = 'ERROR' fmt = LvlFormatter(lvl=lvl) handler = log.StreamHandler() handler.setFormatter(fmt) logger = log.getLogger() logger.setLevel(lvl) logger.addFilter(TagFilter(regex=log_exp)) if handler_num == 0: logger.addHandler(handler) handler_num += 1