nova/nova/api/openstack/compute/plugins/v3/quota_classes.py

132 lines
4.3 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 import extensions
from nova.api.openstack import wsgi
import nova.context
from nova import db
from nova import exception
from nova.i18n import _
from nova import quota
from nova import utils
QUOTAS = quota.QUOTAS
ALIAS = "os-quota-class-sets"
# Quotas that are only enabled by specific extensions
EXTENDED_QUOTAS = {'server_groups': 'os-server-group-quotas',
'server_group_members': 'os-server-group-quotas'}
authorize = extensions.extension_authorizer('compute', 'v3:' + ALIAS)
class QuotaClassSetsController(wsgi.Controller):
supported_quotas = []
def __init__(self, **kwargs):
self.supported_quotas = QUOTAS.resources
extension_info = kwargs.pop('extension_info').get_extensions()
for resource, extension in EXTENDED_QUOTAS.items():
if extension not in extension_info:
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(403)
def show(self, req, id):
context = req.environ['nova.context']
authorize(context)
try:
nova.context.authorize_quota_class_context(context, id)
values = QUOTAS.get_class_quotas(context, id)
return self._format_quota_set(id, values)
except exception.Forbidden:
raise webob.exc.HTTPForbidden()
@extensions.expected_errors((400, 403))
def update(self, req, id, body):
context = req.environ['nova.context']
authorize(context)
quota_class = id
bad_keys = []
if not self.is_valid_body(body, 'quota_class_set'):
msg = _("quota_class_set not specified")
raise webob.exc.HTTPBadRequest(explanation=msg)
quota_class_set = body['quota_class_set']
for key in quota_class_set.keys():
if key not in self.supported_quotas:
bad_keys.append(key)
continue
try:
value = utils.validate_integer(
body['quota_class_set'][key], key)
except exception.InvalidInput as e:
raise webob.exc.HTTPBadRequest(
explanation=e.format_message())
if bad_keys:
msg = _("Bad key(s) %s in quota_set") % ",".join(bad_keys)
raise webob.exc.HTTPBadRequest(explanation=msg)
for key in quota_class_set.keys():
value = utils.validate_integer(
body['quota_class_set'][key], key)
try:
db.quota_class_update(context, quota_class, key, value)
except exception.QuotaClassNotFound:
db.quota_class_create(context, quota_class, key, value)
except exception.AdminRequired:
raise webob.exc.HTTPForbidden()
values = QUOTAS.get_class_quotas(context, quota_class)
return self._format_quota_set(None, values)
class QuotaClasses(extensions.V3APIExtensionBase):
"""Quota classes management support."""
name = "QuotaClasses"
alias = ALIAS
version = 1
def get_resources(self):
resources = []
res = extensions.ResourceExtension(
ALIAS,
QuotaClassSetsController(extension_info=self.extension_info))
resources.append(res)
return resources
def get_controller_extensions(self):
return []