1 | # -*- coding: utf-8 -*- |
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2 | # |
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3 | # This file is part of Glances. |
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4 | # |
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5 | # Copyright (C) 2019 Nicolargo <[email protected]> |
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6 | # |
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7 | # Glances is free software; you can redistribute it and/or modify |
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8 | # it under the terms of the GNU Lesser General Public License as published by |
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9 | # the Free Software Foundation, either version 3 of the License, or |
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10 | # (at your option) any later version. |
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11 | # |
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12 | # Glances is distributed in the hope that it will be useful, |
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13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | # GNU Lesser General Public License for more details. |
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16 | # |
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17 | # You should have received a copy of the GNU Lesser General Public License |
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18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 | |||
20 | """JMS interface class.""" |
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21 | |||
22 | import datetime |
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23 | import socket |
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24 | import sys |
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25 | from numbers import Number |
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26 | |||
27 | from glances.compat import range |
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28 | from glances.logger import logger |
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29 | from glances.exports.glances_export import GlancesExport |
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30 | |||
31 | # Import pika for RabbitMQ |
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32 | import pika |
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33 | |||
34 | |||
35 | class Export(GlancesExport): |
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36 | |||
37 | """This class manages the rabbitMQ export module.""" |
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38 | |||
39 | def __init__(self, config=None, args=None): |
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40 | """Init the RabbitMQ export IF.""" |
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41 | super(Export, self).__init__(config=config, args=args) |
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42 | |||
43 | # Mandatories configuration keys (additional to host and port) |
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44 | self.user = None |
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45 | self.password = None |
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46 | self.queue = None |
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47 | |||
48 | # Optionals configuration keys |
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49 | # N/A |
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50 | |||
51 | # Load the rabbitMQ configuration file |
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52 | self.export_enable = self.load_conf('rabbitmq', |
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53 | mandatories=['host', 'port', |
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54 | 'user', 'password', |
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55 | 'queue'], |
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56 | options=[]) |
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57 | if not self.export_enable: |
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58 | sys.exit(2) |
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59 | |||
60 | # Get the current hostname |
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61 | self.hostname = socket.gethostname() |
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62 | |||
63 | # Init the rabbitmq client |
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64 | self.client = self.init() |
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65 | |||
66 | def init(self): |
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67 | """Init the connection to the rabbitmq server.""" |
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68 | if not self.export_enable: |
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69 | return None |
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70 | try: |
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71 | parameters = pika.URLParameters( |
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72 | 'amqp://' + self.user + |
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73 | ':' + self.password + |
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74 | '@' + self.host + |
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75 | ':' + self.port + '/') |
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76 | connection = pika.BlockingConnection(parameters) |
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77 | channel = connection.channel() |
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78 | return channel |
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79 | except Exception as e: |
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Catching very general exceptions such as
Exception is usually not recommended.
Generally, you would want to handle very specific errors in the exception handler. This ensure that you do not hide other types of errors which should be fixed. So, unless you specifically plan to handle any error, consider adding a more specific exception.
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The name
e does not conform to the variable naming conventions ((([a-z][a-z0-9_]{2,30})|(_[a-z0-9_]*))$ ).
This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site.
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80 | logger.critical("Connection to rabbitMQ failed : %s " % e) |
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81 | return None |
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82 | |||
83 | def export(self, name, columns, points): |
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84 | """Write the points in RabbitMQ.""" |
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85 | data = ('hostname=' + self.hostname + ', name=' + name + |
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86 | ', dateinfo=' + datetime.datetime.utcnow().isoformat()) |
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87 | for i in range(len(columns)): |
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88 | if not isinstance(points[i], Number): |
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89 | continue |
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90 | else: |
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91 | data += ", " + columns[i] + "=" + str(points[i]) |
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92 | logger.debug(data) |
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93 | try: |
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94 | self.client.basic_publish(exchange='', routing_key=self.queue, body=data) |
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95 | except Exception as e: |
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0 ignored issues
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show
Catching very general exceptions such as
Exception is usually not recommended.
Generally, you would want to handle very specific errors in the exception handler. This ensure that you do not hide other types of errors which should be fixed. So, unless you specifically plan to handle any error, consider adding a more specific exception.
Loading history...
The name
e does not conform to the variable naming conventions ((([a-z][a-z0-9_]{2,30})|(_[a-z0-9_]*))$ ).
This check looks for invalid names for a range of different identifiers. You can set regular expressions to which the identifiers must conform if the defaults do not match your requirements. If your project includes a Pylint configuration file, the settings contained in that file take precedence. To find out more about Pylint, please refer to their site.
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96 | logger.error("Can not export stats to RabbitMQ (%s)" % e) |
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97 |