140 lines
4.9 KiB
Python
140 lines
4.9 KiB
Python
# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import webob
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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import nova.context
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from nova import db
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from nova import exception
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from nova.i18n import _
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from nova import quota
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from nova import utils
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QUOTAS = quota.QUOTAS
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# Quotas that are only enabled by specific extensions
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EXTENDED_QUOTAS = {'server_groups': 'os-server-group-quotas',
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'server_group_members': 'os-server-group-quotas'}
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authorize = extensions.extension_authorizer('compute', 'quota_classes')
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class QuotaClassSetsController(wsgi.Controller):
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supported_quotas = []
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def __init__(self, ext_mgr):
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self.ext_mgr = ext_mgr
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self.supported_quotas = QUOTAS.resources
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for resource, extension in EXTENDED_QUOTAS.items():
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if not self.ext_mgr.is_loaded(extension):
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self.supported_quotas.remove(resource)
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def _format_quota_set(self, quota_class, quota_set):
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"""Convert the quota object to a result dict."""
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if quota_class:
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result = dict(id=str(quota_class))
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else:
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result = {}
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for resource in self.supported_quotas:
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if resource in quota_set:
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result[resource] = quota_set[resource]
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return dict(quota_class_set=result)
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def show(self, req, id):
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context = req.environ['nova.context']
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authorize(context)
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try:
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nova.context.authorize_quota_class_context(context, id)
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values = QUOTAS.get_class_quotas(context, id)
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return self._format_quota_set(id, values)
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except exception.Forbidden:
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raise webob.exc.HTTPForbidden()
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def update(self, req, id, body):
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context = req.environ['nova.context']
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authorize(context)
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try:
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utils.check_string_length(id, 'quota_class_name',
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min_length=1, max_length=255)
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except exception.InvalidInput as e:
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raise webob.exc.HTTPBadRequest(
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explanation=e.format_message())
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quota_class = id
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bad_keys = []
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if not self.is_valid_body(body, 'quota_class_set'):
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msg = _("quota_class_set not specified")
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raise webob.exc.HTTPBadRequest(explanation=msg)
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quota_class_set = body['quota_class_set']
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for key in quota_class_set.keys():
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if key not in self.supported_quotas:
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bad_keys.append(key)
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continue
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try:
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body['quota_class_set'][key] = utils.validate_integer(
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body['quota_class_set'][key], key, max_value=db.MAX_INT)
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except exception.InvalidInput as e:
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raise webob.exc.HTTPBadRequest(
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explanation=e.format_message())
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if bad_keys:
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msg = _("Bad key(s) %s in quota_set") % ",".join(bad_keys)
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raise webob.exc.HTTPBadRequest(explanation=msg)
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try:
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# NOTE(alex_xu): back-compatible with db layer hard-code admin
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# permission checks. This has to be left only for API v2.0 because
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# this version has to be stable even if it means that only admins
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# can call this method while the policy could be changed.
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nova.context.require_admin_context(context)
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except exception.AdminRequired:
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raise webob.exc.HTTPForbidden()
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for key, value in quota_class_set.items():
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try:
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db.quota_class_update(context, quota_class, key, value)
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except exception.QuotaClassNotFound:
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db.quota_class_create(context, quota_class, key, value)
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values = QUOTAS.get_class_quotas(context, quota_class)
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return self._format_quota_set(None, values)
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class Quota_classes(extensions.ExtensionDescriptor):
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"""Quota classes management support."""
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name = "QuotaClasses"
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alias = "os-quota-class-sets"
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namespace = ("http://docs.openstack.org/compute/ext/"
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"quota-classes-sets/api/v1.1")
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updated = "2012-03-12T00:00:00Z"
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def get_resources(self):
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resources = []
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res = extensions.ResourceExtension('os-quota-class-sets',
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QuotaClassSetsController(self.ext_mgr))
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resources.append(res)
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return resources
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