scheduler_options.py 文件源码

def get_configuration(self, filename=None):
        """Check the json file for changes and load it if needed."""
        if not filename:
            filename = CONF.scheduler_json_config_location
        if not filename:
            return self.data
        if self.last_checked:
            now = self._get_time_now()
            if now - self.last_checked < datetime.timedelta(minutes=5):
                return self.data

        last_modified = self._get_file_timestamp(filename)
        if (not last_modified or not self.last_modified or
                last_modified > self.last_modified):
            self.data = self._load_file(self._get_file_handle(filename))
            self.last_modified = last_modified
        if not self.data:
            self.data = {}

        return self.data