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# -*- 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 <[email protected]> |
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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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"""JMS interface class.""" |
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import datetime |
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import socket |
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import sys |
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from numbers import Number |
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from glances.compat import range |
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from glances.logger import logger |
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from glances.exports.glances_export import GlancesExport |
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# Import pika for RabbitMQ |
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import pika |
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class Export(GlancesExport): |
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"""This class manages the rabbitMQ export module.""" |
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def __init__(self, config=None, args=None): |
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"""Init the RabbitMQ export IF.""" |
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super(Export, self).__init__(config=config, args=args) |
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# Mandatory configuration keys (additional to host and port) |
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self.user = None |
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self.password = None |
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self.queue = None |
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self.protocol = None |
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# Optionals configuration keys |
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# N/A |
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# Load the rabbitMQ configuration file |
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self.export_enable = self.load_conf( |
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'rabbitmq', mandatories=['host', 'port', 'user', 'password', 'queue'], options=['protocol'] |
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) |
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if not self.export_enable: |
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sys.exit(2) |
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# Get the current hostname |
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self.hostname = socket.gethostname() |
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# Init the rabbitmq client |
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self.client = self.init() |
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def init(self): |
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"""Init the connection to the rabbitmq server.""" |
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if not self.export_enable: |
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return None |
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# Needed for when protocol is not specified and when protocol is upper case |
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# only amqp and amqps supported |
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if self.protocol is not None and (self.protocol.lower() == 'amqps'): |
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self.protocol = 'amqps' |
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else: |
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self.protocol = 'amqp' |
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try: |
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parameters = pika.URLParameters( |
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self.protocol + '://' + self.user + ':' + self.password + '@' + self.host + ':' + self.port + '/' |
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) |
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connection = pika.BlockingConnection(parameters) |
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channel = connection.channel() |
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return channel |
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except Exception as e: |
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logger.critical("Connection to rabbitMQ failed : %s " % e) |
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return None |
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def export(self, name, columns, points): |
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"""Write the points in RabbitMQ.""" |
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data = 'hostname=' + self.hostname + ', name=' + name + ', dateinfo=' + datetime.datetime.utcnow().isoformat() |
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for i in range(len(columns)): |
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if not isinstance(points[i], Number): |
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continue |
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else: |
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data += ", " + columns[i] + "=" + str(points[i]) |
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logger.debug(data) |
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try: |
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self.client.basic_publish(exchange='', routing_key=self.queue, body=data) |
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except Exception as e: |
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logger.error("Can not export stats to RabbitMQ (%s)" % e) |
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nicolargo /
glances
