nova/nova/api/openstack/compute/quota_classes.py

91 lines
3.1 KiB
Python

# Copyright 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.
import webob
from nova.api.openstack.compute.schemas import quota_classes
from nova.api.openstack import extensions
from nova.api.openstack import wsgi
from nova.api import validation
from nova import db
from nova import exception
from nova.policies import quota_class_sets as qcs_policies
from nova import quota
from nova import utils
QUOTAS = quota.QUOTAS
# Quotas that are only enabled by specific extensions
EXTENDED_QUOTAS = {'server_groups': 'os-server-group-quotas',
'server_group_members': 'os-server-group-quotas'}
class QuotaClassSetsController(wsgi.Controller):
supported_quotas = []
def __init__(self, **kwargs):
self.supported_quotas = QUOTAS.resources
# TODO(jichenjc): need fix v2 and v2.1 API difference here see bug
# 1693168 for more info
for resource, extension in EXTENDED_QUOTAS.items():
self.supported_quotas.remove(resource)
def _format_quota_set(self, quota_class, quota_set):
"""Convert the quota object to a result dict."""
if quota_class:
result = dict(id=str(quota_class))
else:
result = {}
for resource in self.supported_quotas:
if resource in quota_set:
result[resource] = quota_set[resource]
return dict(quota_class_set=result)
@extensions.expected_errors(())
def show(self, req, id):
context = req.environ['nova.context']
context.can(qcs_policies.POLICY_ROOT % 'show', {'quota_class': id})
values = QUOTAS.get_class_quotas(context, id)
return self._format_quota_set(id, values)
@extensions.expected_errors(400)
@validation.schema(quota_classes.update)
def update(self, req, id, body):
context = req.environ['nova.context']
context.can(qcs_policies.POLICY_ROOT % 'update', {'quota_class': id})
try:
utils.check_string_length(id, 'quota_class_name',
min_length=1, max_length=255)
except exception.InvalidInput as e:
raise webob.exc.HTTPBadRequest(
explanation=e.format_message())
quota_class = id
for key, value in body['quota_class_set'].items():
try:
db.quota_class_update(context, quota_class, key, value)
except exception.QuotaClassNotFound:
db.quota_class_create(context, quota_class, key, value)
values = QUOTAS.get_class_quotas(context, quota_class)
return self._format_quota_set(None, values)