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Directory :  /lib/netdata/python.d/

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Current File : //lib/netdata/python.d/postfix.chart.py
# -*- coding: utf-8 -*-
# Description: postfix netdata python.d module
# Author: Pawel Krupa (paulfantom)
# SPDX-License-Identifier: GPL-3.0-or-later

from bases.FrameworkServices.ExecutableService import ExecutableService

POSTQUEUE_COMMAND = 'postqueue -p'

ORDER = [
    'qemails',
    'qsize',
]

CHARTS = {
    'qemails': {
        'options': [None, 'Postfix Queue Emails', 'emails', 'queue', 'postfix.qemails', 'line'],
        'lines': [
            ['emails', None, 'absolute']
        ]
    },
    'qsize': {
        'options': [None, 'Postfix Queue Emails Size', 'KiB', 'queue', 'postfix.qsize', 'area'],
        'lines': [
            ['size', None, 'absolute']
        ]
    }
}


class Service(ExecutableService):
    def __init__(self, configuration=None, name=None):
        ExecutableService.__init__(self, configuration=configuration, name=name)
        self.order = ORDER
        self.definitions = CHARTS
        self.command = POSTQUEUE_COMMAND

    def _get_data(self):
        """
        Format data received from shell command
        :return: dict
        """
        try:
            raw = self._get_raw_data()[-1].split(' ')
            if raw[0] == 'Mail' and raw[1] == 'queue':
                return {'emails': 0,
                        'size': 0}

            return {'emails': raw[4],
                    'size': raw[1]}
        except (ValueError, AttributeError):
            return None

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