# -*- coding: utf-8 -*- # # This file is part of Glances. # # SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com> # # SPDX-License-Identifier: LGPL-3.0-only # """ Thresholds classes: OK, CAREFUL, WARNING, CRITICAL """ import sys from functools import total_ordering class GlancesThresholds(object): """Class to manage thresholds dict for all Glances plugins: key: Glances stats (example: cpu_user) value: Threshold instance """ threshold_list = ['OK', 'CAREFUL', 'WARNING', 'CRITICAL'] def __init__(self): self.current_module = sys.modules[__name__] self._thresholds = {} def get(self, stat_name=None): """Return the threshold dict. If stat_name is None, return the threshold for all plugins (dict of Threshold*) Else return the Threshold* instance for the given plugin """ if stat_name is None: return self._thresholds if stat_name in self._thresholds: return self._thresholds[stat_name] else: return {} def add(self, stat_name, threshold_description): """Add a new threshold to the dict (key = stat_name)""" if threshold_description not in self.threshold_list: return False else: self._thresholds[stat_name] = getattr( self.current_module, 'GlancesThreshold' + threshold_description.capitalize() )() return True # Global variable uses to share thresholds between Glances components glances_thresholds = GlancesThresholds() @total_ordering class _GlancesThreshold(object): """Father class for all other Thresholds""" def description(self): return self._threshold['description'] def value(self): return self._threshold['value'] def __repr__(self): return str(self._threshold) def __str__(self): return self.description() def __lt__(self, other): return self.value() < other.value() def __eq__(self, other): return self.value() == other.value() class GlancesThresholdOk(_GlancesThreshold): """Ok Threshold class""" _threshold = {'description': 'OK', 'value': 0} class GlancesThresholdCareful(_GlancesThreshold): """Careful Threshold class""" _threshold = {'description': 'CAREFUL', 'value': 1} class GlancesThresholdWarning(_GlancesThreshold): """Warning Threshold class""" _threshold = {'description': 'WARNING', 'value': 2} class GlancesThresholdCritical(_GlancesThreshold): """Warning Threshold class""" _threshold = {'description': 'CRITICAL', 'value': 3}