118 lines
2.9 KiB
Python
118 lines
2.9 KiB
Python
# Copyright (c) 2014 Rackspace, 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 poppy.model import flavor
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from poppy.storage import base
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CQL_GET_ALL = '''
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SELECT flavor_id,
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providers
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FROM flavors
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'''
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CQL_GET = '''
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SELECT flavor_id,
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providers
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FROM flavors
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WHERE flavor_id = %(flavor_id)s
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'''
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CQL_DELETE = '''
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DELETE FROM flavors
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WHERE flavor_id = %(flavor_id)s
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'''
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CQL_CREATE = '''
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INSERT INTO flavors (flavor_id,
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providers)
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VALUES (%(flavor_id)s,
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%(providers)s)
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'''
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class FlavorsController(base.FlavorsController):
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@property
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def session(self):
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return self._driver.database
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def list(self):
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"""List the supported flavors."""
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# get all
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result = self.session.execute(CQL_GET_ALL)
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flavors = [
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flavor.Flavor(
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f['flavor_id'],
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[flavor.Provider(p_id, p_url)
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for p_id, p_url in f['providers'].items()])
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for f in result]
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return flavors
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def get(self, flavor_id):
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"""Get the specified Flavor."""
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args = {
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'flavor_id': flavor_id
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}
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result = self.session.execute(CQL_GET, args)
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flavors = [
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flavor.Flavor(
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f['flavor_id'],
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[flavor.Provider(p_id, p_url)
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for p_id, p_url in f['providers'].items()]
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)
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for f in result]
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if (len(flavors) == 1):
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return flavors[0]
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else:
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raise LookupError("More than one flavor/no record was retrieved.")
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def add(self, flavor):
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"""Add a new flavor."""
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# check if the flavor already exist.
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# Note: If it does, no LookupError will be raised
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try:
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self.get(flavor.flavor_id)
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except LookupError:
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pass
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else:
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raise ValueError("Flavor %s already exists..."
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% flavor.flavor_id)
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providers = dict((p.provider_id, p.provider_url)
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for p in flavor.providers)
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args = {
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'flavor_id': flavor.flavor_id,
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'providers': providers
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}
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self.session.execute(CQL_CREATE, args)
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def delete(self, flavor_id):
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"""Delete a flavor."""
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args = {
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'flavor_id': flavor_id
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}
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self.session.execute(CQL_DELETE, args)
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