136 lines
4.8 KiB
Python
136 lines
4.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
|
|
# Copyright 2011 University of Southern California
|
|
# 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.
|
|
|
|
""" The instance type extra specs extension"""
|
|
|
|
from webob import exc
|
|
|
|
from nova.api.openstack import wsgi
|
|
from nova.api.openstack import xmlutil
|
|
from nova.api.openstack import extensions
|
|
from nova import db
|
|
from nova import exception
|
|
|
|
|
|
authorize = extensions.extension_authorizer('compute', 'flavorextraspecs')
|
|
|
|
|
|
class ExtraSpecsTemplate(xmlutil.TemplateBuilder):
|
|
def construct(self):
|
|
return xmlutil.MasterTemplate(xmlutil.make_flat_dict('extra_specs'), 1)
|
|
|
|
|
|
class FlavorExtraSpecsController(object):
|
|
""" The flavor extra specs API controller for the Openstack API """
|
|
|
|
def _get_extra_specs(self, context, flavor_id):
|
|
extra_specs = db.instance_type_extra_specs_get(context, flavor_id)
|
|
specs_dict = {}
|
|
for key, value in extra_specs.iteritems():
|
|
specs_dict[key] = value
|
|
return dict(extra_specs=specs_dict)
|
|
|
|
def _check_body(self, body):
|
|
if body is None or body == "":
|
|
expl = _('No Request Body')
|
|
raise exc.HTTPBadRequest(explanation=expl)
|
|
|
|
@wsgi.serializers(xml=ExtraSpecsTemplate)
|
|
def index(self, req, flavor_id):
|
|
""" Returns the list of extra specs for a givenflavor """
|
|
context = req.environ['nova.context']
|
|
authorize(context)
|
|
return self._get_extra_specs(context, flavor_id)
|
|
|
|
@wsgi.serializers(xml=ExtraSpecsTemplate)
|
|
def create(self, req, flavor_id, body):
|
|
context = req.environ['nova.context']
|
|
authorize(context)
|
|
self._check_body(body)
|
|
specs = body.get('extra_specs')
|
|
try:
|
|
db.instance_type_extra_specs_update_or_create(context,
|
|
flavor_id,
|
|
specs)
|
|
except exception.QuotaError as error:
|
|
self._handle_quota_error(error)
|
|
return body
|
|
|
|
@wsgi.serializers(xml=ExtraSpecsTemplate)
|
|
def update(self, req, flavor_id, id, body):
|
|
context = req.environ['nova.context']
|
|
authorize(context)
|
|
self._check_body(body)
|
|
if not id in body:
|
|
expl = _('Request body and URI mismatch')
|
|
raise exc.HTTPBadRequest(explanation=expl)
|
|
if len(body) > 1:
|
|
expl = _('Request body contains too many items')
|
|
raise exc.HTTPBadRequest(explanation=expl)
|
|
try:
|
|
db.instance_type_extra_specs_update_or_create(context,
|
|
flavor_id,
|
|
body)
|
|
except exception.QuotaError as error:
|
|
self._handle_quota_error(error)
|
|
|
|
return body
|
|
|
|
@wsgi.serializers(xml=ExtraSpecsTemplate)
|
|
def show(self, req, flavor_id, id):
|
|
""" Return a single extra spec item """
|
|
context = req.environ['nova.context']
|
|
authorize(context)
|
|
specs = self._get_extra_specs(context, flavor_id)
|
|
if id in specs['extra_specs']:
|
|
return {id: specs['extra_specs'][id]}
|
|
else:
|
|
raise exc.HTTPNotFound()
|
|
|
|
def delete(self, req, flavor_id, id):
|
|
""" Deletes an existing extra spec """
|
|
context = req.environ['nova.context']
|
|
authorize(context)
|
|
db.instance_type_extra_specs_delete(context, flavor_id, id)
|
|
|
|
def _handle_quota_error(self, error):
|
|
"""Reraise quota errors as api-specific http exceptions."""
|
|
if error.code == "MetadataLimitExceeded":
|
|
raise exc.HTTPBadRequest(explanation=error.message)
|
|
raise error
|
|
|
|
|
|
class Flavorextraspecs(extensions.ExtensionDescriptor):
|
|
"""Instance type (flavor) extra specs"""
|
|
|
|
name = "FlavorExtraSpecs"
|
|
alias = "os-flavor-extra-specs"
|
|
namespace = ("http://docs.openstack.org/compute/ext/"
|
|
"flavor_extra_specs/api/v1.1")
|
|
updated = "2011-06-23T00:00:00+00:00"
|
|
|
|
def get_resources(self):
|
|
resources = []
|
|
|
|
res = extensions.ResourceExtension(
|
|
'os-extra_specs',
|
|
FlavorExtraSpecsController(),
|
|
parent=dict(member_name='flavor', collection_name='flavors'))
|
|
|
|
resources.append(res)
|
|
return resources
|