logger_factory.py 文件源码

def parse_expressions(self, expressions):
        """ Parse a list of logger matching expressions of the form
            <regex>=<log-level>.  Place the compiled regex's and levels
            in the expressions attribute. """
        lines = expressions.split('\n')
        for line in lines:
            try:
                # Use the right split so we can have '='s in the regex
                regex, level = line.rsplit('=', 1)
                pattern = re.compile(regex)
                results = (pattern, logging.getLevelName(level.upper()))

                self.logger.log(
                    TraceLogger.TRACE,
                    'Appending %s:%s to logger level expressions' % (
                        results[0], results[1]))

                self.expressions.append(results)
            except Exception, ex:
                self.logger.\
                    error('Parser error in log configuration file: %s' % (
                        line))
                self.logger.exception(ex)