root / snf-pithos-backend / pithos / backends / lib / rabbitmq / queue.py @ f4fbb0fa
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1 | 46286f5f | Antony Chazapis | # Copyright 2012 GRNET S.A. All rights reserved.
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2 | 2715ade4 | Sofia Papagiannaki | #
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3 | 46286f5f | Antony Chazapis | # Redistribution and use in source and binary forms, with or
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4 | 46286f5f | Antony Chazapis | # without modification, are permitted provided that the following
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5 | 46286f5f | Antony Chazapis | # conditions are met:
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6 | 2715ade4 | Sofia Papagiannaki | #
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7 | 46286f5f | Antony Chazapis | # 1. Redistributions of source code must retain the above
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8 | 46286f5f | Antony Chazapis | # copyright notice, this list of conditions and the following
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9 | 46286f5f | Antony Chazapis | # disclaimer.
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10 | 2715ade4 | Sofia Papagiannaki | #
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11 | 46286f5f | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
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12 | 46286f5f | Antony Chazapis | # copyright notice, this list of conditions and the following
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13 | 46286f5f | Antony Chazapis | # disclaimer in the documentation and/or other materials
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14 | 46286f5f | Antony Chazapis | # provided with the distribution.
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15 | 2715ade4 | Sofia Papagiannaki | #
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16 | 46286f5f | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 46286f5f | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 46286f5f | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 46286f5f | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 46286f5f | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 46286f5f | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 46286f5f | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 46286f5f | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 46286f5f | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 46286f5f | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 46286f5f | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 46286f5f | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 2715ade4 | Sofia Papagiannaki | #
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29 | 46286f5f | Antony Chazapis | # The views and conclusions contained in the software and
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30 | 46286f5f | Antony Chazapis | # documentation are those of the authors and should not be
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31 | 46286f5f | Antony Chazapis | # interpreted as representing official policies, either expressed
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32 | 46286f5f | Antony Chazapis | # or implied, of GRNET S.A.
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33 | 46286f5f | Antony Chazapis | |
34 | f4fbb0fa | Sofia Papagiannaki | import json |
35 | 46286f5f | Antony Chazapis | |
36 | f4fbb0fa | Sofia Papagiannaki | from synnefo.lib.amqp import AMQPClient |
37 | f4fbb0fa | Sofia Papagiannaki | from synnefo.lib.queue import Receipt |
38 | 46286f5f | Antony Chazapis | |
39 | 46286f5f | Antony Chazapis | class Queue(object): |
40 | 46286f5f | Antony Chazapis | """Queue.
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41 | f4fbb0fa | Sofia Papagiannaki | Required constructor parameters: hosts, exchange, client_id.
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42 | 46286f5f | Antony Chazapis | """
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43 | 2715ade4 | Sofia Papagiannaki | |
44 | 46286f5f | Antony Chazapis | def __init__(self, **params): |
45 | f4fbb0fa | Sofia Papagiannaki | hosts = params['hosts']
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46 | f4fbb0fa | Sofia Papagiannaki | self.exchange = params['exchange'] |
47 | fa9cae7e | Antony Chazapis | self.client_id = params['client_id'] |
48 | 2715ade4 | Sofia Papagiannaki | |
49 | f4fbb0fa | Sofia Papagiannaki | self.client = AMQPClient(hosts=hosts)
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50 | f4fbb0fa | Sofia Papagiannaki | self.client.connect()
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51 | f4fbb0fa | Sofia Papagiannaki | |
52 | f4fbb0fa | Sofia Papagiannaki | self.client.exchange_declare(exchange=self.exchange, |
53 | f4fbb0fa | Sofia Papagiannaki | type='topic')
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54 | 2715ade4 | Sofia Papagiannaki | |
55 | f4fbb0fa | Sofia Papagiannaki | def send(self, message_key, user, instance, resource, value, details): |
56 | f4fbb0fa | Sofia Papagiannaki | body = Receipt(self.client_id, user, instance, resource, value, details).format()
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57 | f4fbb0fa | Sofia Papagiannaki | self.client.basic_publish(exchange=self.exchange, |
58 | f4fbb0fa | Sofia Papagiannaki | routing_key=message_key, |
59 | f4fbb0fa | Sofia Papagiannaki | body=json.dumps(body)) |
60 | f4fbb0fa | Sofia Papagiannaki | |
61 | b9a8feec | root | def close(self): |
62 | f4fbb0fa | Sofia Papagiannaki | self.client.close() |