64 lines
2.3 KiB
Python
64 lines
2.3 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import eventlet
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import murano.dsl.murano_class as murano_class
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import murano.dsl.murano_object as murano_object
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import murano.engine.system.common as common
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from muranoapi.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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@murano_class.classname('io.murano.system.AgentListener')
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class AgentListener(murano_object.MuranoObject):
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def initialize(self, _context, name):
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self._results_queue = str('-execution-results-%s' % name.lower())
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self._subscriptions = {}
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self._receive_thread = None
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def queueName(self):
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return self._results_queue
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def start(self):
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if self._receive_thread is None:
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self._receive_thread = eventlet.spawn(self._receive)
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def stop(self):
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if self._receive_thread is not None:
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self._receive_thread.kill()
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self._receive_thread = None
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def subscribe(self, message_id, event):
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self._subscriptions[message_id] = event
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def _receive(self):
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with common.create_rmq_client() as client:
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client.declare(self._results_queue, enable_ha=True, ttl=86400000)
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with client.open(self._results_queue) as subscription:
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while True:
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msg = subscription.get_message()
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if not msg:
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continue
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msg.ack()
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msg_id = msg.body.get('SourceID', msg.id)
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LOG.debug("Got execution result: id '{0}'"
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" body '{1}'".format(msg_id, msg.body))
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if msg_id in self._subscriptions:
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event = self._subscriptions.pop(msg_id)
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event.send(msg.body)
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