python-zaqarclient/zaqarclient/queues/v1/flavor.py

68 lines
2.0 KiB
Python

# Copyright (c) 2014 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from zaqarclient.queues.v1 import core
from zaqarclient.transport import errors
class Flavor(object):
def __init__(self, client, name,
pool=None, auto_create=True,
**capabilities):
self.client = client
self.name = name
self.pool = pool
self.capabilities = capabilities
if auto_create:
self.ensure_exists()
def ensure_exists(self):
"""Ensures pool exists
This method is not race safe,
the pool could've been deleted
right after it was called.
"""
req, trans = self.client._request_and_transport()
try:
flavor = core.flavor_get(trans, req, self.name)
self.pool = flavor["pool"]
self.capabilities = flavor.get("capabilities", {})
except errors.ResourceNotFound:
data = {'pool': self.pool,
'capabilities': self.capabilities}
core.flavor_create(trans, req, self.name, data)
def update(self, flavor_data):
req, trans = self.client._request_and_transport()
core.flavor_update(trans, req, self.name, flavor_data)
for key, value in flavor_data.items():
setattr(self, key, value)
def delete(self):
req, trans = self.client._request_and_transport()
core.flavor_delete(trans, req, self.name)
def create_object(parent):
return lambda args: Flavor(parent, args["name"], auto_create=False)