mirror of
https://github.com/nicolargo/glances.git
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121 lines
3.2 KiB
Python
121 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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#
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# This file is part of Glances.
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#
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# Copyright (C) 2019 Nicolargo <nicolas@nicolargo.com>
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#
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# Glances is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Glances is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Thresholds classes: OK, CAREFUL, WARNING, CRITICAL
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"""
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import sys
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from functools import total_ordering
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class GlancesThresholds(object):
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"""Class to manage thresholds dict for all Glances plugins:
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key: Glances stats (example: cpu_user)
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value: Threasold* instance
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"""
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threshold_list = ['OK', 'CAREFUL', 'WARNING', 'CRITICAL']
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def __init__(self):
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self.current_module = sys.modules[__name__]
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self._thresholds = {}
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def get(self, stat_name=None):
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"""Return the threshold dict.
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If stat_name is None, return the threshold for all plugins (dict of Threshold*)
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Else return the Threshold* instance for the given plugin
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"""
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if stat_name is None:
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return self._thresholds
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if stat_name in self._thresholds:
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return self._thresholds[stat_name]
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else:
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return {}
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def add(self, stat_name, threshold_description):
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"""Add a new threshold to the dict (key = stat_name)"""
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if threshold_description not in self.threshold_list:
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return False
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else:
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self._thresholds[stat_name] = getattr(self.current_module,
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'GlancesThreshold' + threshold_description.capitalize())()
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return True
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# Global variable uses to share thresholds between Glances componants
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glances_thresholds = GlancesThresholds()
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@total_ordering
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class _GlancesThreshold(object):
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"""Father class for all other Thresholds"""
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def description(self):
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return self._threshold['description']
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def value(self):
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return self._threshold['value']
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def __repr__(self):
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return str(self._threshold)
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def __str__(self):
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return self.description()
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def __lt__(self, other):
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return self.value() < other.value()
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def __eq__(self, other):
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return self.value() == other.value()
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class GlancesThresholdOk(_GlancesThreshold):
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"""Ok Threshold class"""
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_threshold = {'description': 'OK',
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'value': 0}
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class GlancesThresholdCareful(_GlancesThreshold):
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"""Careful Threshold class"""
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_threshold = {'description': 'CAREFUL',
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'value': 1}
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class GlancesThresholdWarning(_GlancesThreshold):
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"""Warning Threshold class"""
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_threshold = {'description': 'WARNING',
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'value': 2}
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class GlancesThresholdCritical(_GlancesThreshold):
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"""Warning Threshold class"""
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_threshold = {'description': 'CRITICAL',
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'value': 3}
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