139 lines
4.9 KiB
Python
139 lines
4.9 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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from oslo_utils import strutils
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import webob
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from nova.api.openstack import common
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from nova.api.openstack.compute.views import flavors as flavors_view
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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 utils
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ALIAS = 'flavors'
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class FlavorsController(wsgi.Controller):
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"""Flavor controller for the OpenStack API."""
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_view_builder_class = flavors_view.ViewBuilderV21
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@extensions.expected_errors(400)
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def index(self, req):
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"""Return all flavors in brief."""
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limited_flavors = self._get_flavors(req)
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return self._view_builder.index(req, limited_flavors)
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@extensions.expected_errors(400)
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def detail(self, req):
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"""Return all flavors in detail."""
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limited_flavors = self._get_flavors(req)
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req.cache_db_flavors(limited_flavors)
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return self._view_builder.detail(req, limited_flavors)
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@extensions.expected_errors(404)
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def show(self, req, id):
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"""Return data about the given flavor id."""
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context = req.environ['nova.context']
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try:
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flavor = flavors.get_flavor_by_flavor_id(id, ctxt=context)
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req.cache_db_flavor(flavor)
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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 self._view_builder.show(req, flavor)
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def _parse_is_public(self, is_public):
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"""Parse is_public into something usable."""
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if is_public is None:
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# preserve default value of showing only public flavors
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return True
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elif utils.is_none_string(is_public):
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return None
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else:
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try:
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return strutils.bool_from_string(is_public, strict=True)
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except ValueError:
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msg = _('Invalid is_public filter [%s]') % is_public
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raise webob.exc.HTTPBadRequest(explanation=msg)
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def _get_flavors(self, req):
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"""Helper function that returns a list of flavor dicts."""
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filters = {}
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sort_key = req.params.get('sort_key') or 'flavorid'
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sort_dir = req.params.get('sort_dir') or 'asc'
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limit, marker = common.get_limit_and_marker(req)
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context = req.environ['nova.context']
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if context.is_admin:
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# Only admin has query access to all flavor types
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filters['is_public'] = self._parse_is_public(
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req.params.get('is_public', None))
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else:
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filters['is_public'] = True
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filters['disabled'] = False
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if 'minRam' in req.params:
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try:
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filters['min_memory_mb'] = int(req.params['minRam'])
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except ValueError:
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msg = _('Invalid min_ram filter [%s]') % req.params['minRam']
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if 'minDisk' in req.params:
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try:
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filters['min_root_gb'] = int(req.params['minDisk'])
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except ValueError:
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msg = (_('Invalid minDisk filter [%s]') %
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req.params['minDisk'])
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raise webob.exc.HTTPBadRequest(explanation=msg)
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try:
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limited_flavors = flavors.get_all_flavors_sorted_list(context,
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filters=filters, sort_key=sort_key, sort_dir=sort_dir,
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limit=limit, marker=marker)
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except exception.MarkerNotFound:
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msg = _('marker [%s] not found') % marker
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raise webob.exc.HTTPBadRequest(explanation=msg)
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return limited_flavors
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class Flavors(extensions.V21APIExtensionBase):
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"""Flavors Extension."""
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name = "Flavors"
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alias = ALIAS
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version = 1
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def get_resources(self):
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collection_actions = {'detail': 'GET'}
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member_actions = {'action': 'POST'}
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resources = [
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extensions.ResourceExtension(ALIAS,
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FlavorsController(),
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member_name='flavor',
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collection_actions=collection_actions,
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member_actions=member_actions)
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]
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return resources
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def get_controller_extensions(self):
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return []
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