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# Copyright 2010-2012 OpenStack Foundation
# All Rights Reserved.
#
# 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.
"""Model classes that form the core of instance flavor functionality."""
from novaclient import exceptions as nova_exceptions
from trove.common.clients import create_nova_client
from trove.common import exception
from trove.common.models import NovaRemoteModelBase
class Flavor(object):
_data_fields = ['id', 'links', 'name', 'ram', 'vcpus', 'disk', 'ephemeral']
def __init__(self, flavor=None, context=None, flavor_id=None):
if flavor:
self.flavor = flavor
return
if flavor_id and context:
try:
client = create_nova_client(context)
self.flavor = client.flavors.get(flavor_id)
except nova_exceptions.NotFound:
raise exception.NotFound(uuid=flavor_id)
except nova_exceptions.ClientException as e:
raise exception.TroveError(str(e))
return
msg = ("Flavor is not defined, and"
" context and flavor_id were not specified.")
raise exception.InvalidModelError(errors=msg)
@property
def id(self):
return self.flavor.id
@property
def name(self):
return self.flavor.name
@property
def ram(self):
return self.flavor.ram
@property
def vcpus(self):
return self.flavor.vcpus
@property
def links(self):
return self.flavor.links
@property
def disk(self):
return self.flavor.disk
@property
def ephemeral(self):
return self.flavor.ephemeral
class Flavors(NovaRemoteModelBase):
def __init__(self, context):
nova_flavors = create_nova_client(context).flavors.list()
self.flavors = [Flavor(flavor=item) for item in nova_flavors]
def __iter__(self):
for item in self.flavors:
yield item
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