151 lines
6.0 KiB
Python
151 lines
6.0 KiB
Python
# Copyright 2010 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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from nova.compute import flavors
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from nova import exception
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from nova.i18n import _
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from nova import objects
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class FlavorExtraSpecsController(object):
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"""The flavor extra specs API controller for the OpenStack API."""
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ALIAS = 'flavor-extra-specs'
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def __init__(self, *args, **kwargs):
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super(FlavorExtraSpecsController, self).__init__(*args, **kwargs)
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self.authorize = extensions.extension_authorizer('compute',
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'v3:' + self.ALIAS)
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def _get_extra_specs(self, context, flavor_id):
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flavor = objects.Flavor.get_by_flavor_id(context, flavor_id)
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return dict(extra_specs=flavor.extra_specs)
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def _check_body(self, body):
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if body is None or body == "":
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expl = _('No Request Body')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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def _check_key_names(self, keys):
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try:
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flavors.validate_extra_spec_keys(keys)
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except exception.InvalidInput as error:
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raise webob.exc.HTTPBadRequest(explanation=error.format_message())
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@extensions.expected_errors(())
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def index(self, req, flavor_id):
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"""Returns the list of extra specs for a given flavor."""
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context = req.environ['nova.context']
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self.authorize(context, action='index')
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return self._get_extra_specs(context, flavor_id)
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@extensions.expected_errors((400, 404, 409))
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@wsgi.response(201)
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def create(self, req, flavor_id, body):
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context = req.environ['nova.context']
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self.authorize(context, action='create')
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self._check_body(body)
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specs = body.get('extra_specs', {})
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if not specs or type(specs) is not dict:
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raise webob.exc.HTTPBadRequest(_('No or bad extra_specs provided'))
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self._check_key_names(specs.keys())
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try:
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flavor = objects.Flavor.get_by_flavor_id(context, flavor_id)
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flavor.extra_specs = dict(flavor.extra_specs, **specs)
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flavor.save()
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except exception.FlavorExtraSpecUpdateCreateFailed as e:
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raise webob.exc.HTTPConflict(explanation=e.format_message())
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except exception.FlavorNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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return body
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@extensions.expected_errors((400, 404, 409))
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def update(self, req, flavor_id, id, body):
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context = req.environ['nova.context']
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self.authorize(context, action='update')
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self._check_body(body)
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if id not in body:
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expl = _('Request body and URI mismatch')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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if len(body) > 1:
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expl = _('Request body contains too many items')
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raise webob.exc.HTTPBadRequest(explanation=expl)
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try:
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flavor = objects.Flavor.get_by_flavor_id(context, flavor_id)
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flavor.extra_specs = dict(flavor.extra_specs, **body)
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flavor.save()
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except exception.FlavorExtraSpecUpdateCreateFailed as e:
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raise webob.exc.HTTPConflict(explanation=e.format_message())
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except exception.FlavorNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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return body
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@extensions.expected_errors(404)
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def show(self, req, flavor_id, id):
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"""Return a single extra spec item."""
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context = req.environ['nova.context']
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self.authorize(context, action='show')
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try:
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flavor = objects.Flavor.get_by_flavor_id(context, flavor_id)
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return {id: flavor.extra_specs[id]}
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except (exception.FlavorExtraSpecsNotFound,
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exception.FlavorNotFound) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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except KeyError:
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msg = _("Flavor %(flavor_id)s has no extra specs with "
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"key %(key)s.") % dict(flavor_id=flavor_id,
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key=id)
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raise webob.exc.HTTPNotFound(explanation=msg)
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@wsgi.response(204)
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@extensions.expected_errors(404)
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def delete(self, req, flavor_id, id):
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"""Deletes an existing extra spec."""
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context = req.environ['nova.context']
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self.authorize(context, action='delete')
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try:
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flavor = objects.Flavor.get_by_flavor_id(context, flavor_id)
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del flavor.extra_specs[id]
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flavor.save()
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except (exception.FlavorExtraSpecsNotFound,
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exception.FlavorNotFound) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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except KeyError:
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msg = _("Flavor %(flavor_id)s has no extra specs with "
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"key %(key)s.") % dict(flavor_id=flavor_id,
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key=id)
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raise webob.exc.HTTPNotFound(explanation=msg)
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class FlavorsExtraSpecs(extensions.V3APIExtensionBase):
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"""Flavors extra specs support."""
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name = 'FlavorsExtraSpecs'
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alias = FlavorExtraSpecsController.ALIAS
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version = 1
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def get_resources(self):
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extra_specs = extensions.ResourceExtension(
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self.alias,
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FlavorExtraSpecsController(),
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parent=dict(member_name='flavor', collection_name='flavors'))
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return [extra_specs]
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def get_controller_extensions(self):
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return []
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