78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
# Copyright (c) 2014 Red Hat, 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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from zaqarclient.queues.v1 import core
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class Pool(object):
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def __init__(self, client, name,
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weight=None, uri=None,
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flavor=None, auto_create=True,
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**kwargs):
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self.client = client
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self.uri = uri
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self.name = name
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self.weight = weight
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self.flavor = flavor
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self.options = kwargs.get("options", {})
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if auto_create:
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self.ensure_exists()
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def ensure_exists(self):
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"""Ensures pool exists
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This method is not race safe,
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the pool could've been deleted
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right after it was called.
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"""
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req, trans = self.client._request_and_transport()
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# As of now on PUT, zaqar server updates pool if it is already
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# exists else it will create a new one. The zaqar client should
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# maitain symmetry with zaqar server.
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# TBD(mdnadeem): Have to change this code when zaqar server
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# behaviour change for PUT operation.
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data = {'uri': self.uri,
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'weight': self.weight,
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'options': self.options}
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if self.client.api_version >= 1.1 and self.flavor:
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data['flavor'] = self.flavor
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req, trans = self.client._request_and_transport()
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core.pool_create(trans, req, self.name, data)
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def update(self, pool_data):
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req, trans = self.client._request_and_transport()
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core.pool_update(trans, req, self.name, pool_data)
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for key, value in pool_data.items():
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setattr(self, key, value)
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def delete(self):
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req, trans = self.client._request_and_transport()
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core.pool_delete(trans, req, self.name)
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def get(self):
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req, trans = self.client._request_and_transport()
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return core.pool_get(trans, req, self.name, callback=None)
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def create_object(parent):
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return lambda kwargs: Pool(parent, kwargs.pop('name'),
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auto_create=False, **kwargs)
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