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octavia/octavia/api/v2/controllers/flavor_profiles.py

212 lines
9.8 KiB

# Copyright 2014 Rackspace
# Copyright 2016 Blue Box, an IBM Company
#
# 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.
from oslo_db import exception as odb_exceptions
from oslo_log import log as logging
from oslo_serialization import jsonutils
from oslo_utils import excutils
from oslo_utils import uuidutils
from pecan import request as pecan_request
from sqlalchemy.orm import exc as sa_exception
from wsme import types as wtypes
from wsmeext import pecan as wsme_pecan
from octavia.api.drivers import driver_factory
from octavia.api.drivers import utils as driver_utils
from octavia.api.v2.controllers import base
from octavia.api.v2.types import flavor_profile as profile_types
from octavia.common import constants
from octavia.common import exceptions
from octavia.db import api as db_api
LOG = logging.getLogger(__name__)
class FlavorProfileController(base.BaseController):
RBAC_TYPE = constants.RBAC_FLAVOR_PROFILE
def __init__(self):
super(FlavorProfileController, self).__init__()
@wsme_pecan.wsexpose(profile_types.FlavorProfileRootResponse, wtypes.text,
[wtypes.text], ignore_extra_args=True)
def get_one(self, id, fields=None):
"""Gets a flavor profile's detail."""
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_GET_ONE)
if id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Flavor profile',
id=constants.NIL_UUID)
db_flavor_profile = self._get_db_flavor_profile(context.session, id)
result = self._convert_db_to_type(db_flavor_profile,
profile_types.FlavorProfileResponse)
if fields is not None:
result = self._filter_fields([result], fields)[0]
return profile_types.FlavorProfileRootResponse(flavorprofile=result)
@wsme_pecan.wsexpose(profile_types.FlavorProfilesRootResponse,
[wtypes.text], ignore_extra_args=True)
def get_all(self, fields=None):
"""Lists all flavor profiles."""
pcontext = pecan_request.context
context = pcontext.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_GET_ALL)
db_flavor_profiles, links = self.repositories.flavor_profile.get_all(
context.session,
pagination_helper=pcontext.get(constants.PAGINATION_HELPER))
result = self._convert_db_to_type(
db_flavor_profiles, [profile_types.FlavorProfileResponse])
if fields is not None:
result = self._filter_fields(result, fields)
return profile_types.FlavorProfilesRootResponse(
flavorprofiles=result, flavorprofile_links=links)
@wsme_pecan.wsexpose(profile_types.FlavorProfileRootResponse,
body=profile_types.FlavorProfileRootPOST,
status_code=201)
def post(self, flavor_profile_):
"""Creates a flavor Profile."""
flavorprofile = flavor_profile_.flavorprofile
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_POST)
# Do a basic JSON validation on the metadata
try:
flavor_data_dict = jsonutils.loads(flavorprofile.flavor_data)
except Exception:
raise exceptions.InvalidOption(
value=flavorprofile.flavor_data,
option=constants.FLAVOR_DATA)
# Validate that the provider driver supports the metadata
driver = driver_factory.get_driver(flavorprofile.provider_name)
driver_utils.call_provider(driver.name, driver.validate_flavor,
flavor_data_dict)
lock_session = db_api.get_session(autocommit=False)
try:
flavorprofile_dict = flavorprofile.to_dict(render_unsets=True)
flavorprofile_dict['id'] = uuidutils.generate_uuid()
db_flavor_profile = self.repositories.flavor_profile.create(
lock_session, **flavorprofile_dict)
lock_session.commit()
except odb_exceptions.DBDuplicateEntry:
lock_session.rollback()
raise exceptions.IDAlreadyExists()
except Exception:
with excutils.save_and_reraise_exception():
lock_session.rollback()
result = self._convert_db_to_type(
db_flavor_profile, profile_types.FlavorProfileResponse)
return profile_types.FlavorProfileRootResponse(flavorprofile=result)
def _validate_update_fp(self, context, id, flavorprofile):
if flavorprofile.name is None:
raise exceptions.InvalidOption(value=None, option=constants.NAME)
if flavorprofile.provider_name is None:
raise exceptions.InvalidOption(value=None,
option=constants.PROVIDER_NAME)
if flavorprofile.flavor_data is None:
raise exceptions.InvalidOption(value=None,
option=constants.FLAVOR_DATA)
# Don't allow changes to the flavor_data or provider_name if it
# is in use.
if (not isinstance(flavorprofile.flavor_data, wtypes.UnsetType) or
not isinstance(flavorprofile.provider_name, wtypes.UnsetType)):
if self.repositories.flavor.count(context.session,
flavor_profile_id=id) > 0:
raise exceptions.ObjectInUse(object='Flavor profile', id=id)
@wsme_pecan.wsexpose(profile_types.FlavorProfileRootResponse,
wtypes.text, status_code=200,
body=profile_types.FlavorProfileRootPUT)
def put(self, id, flavor_profile_):
"""Updates a flavor Profile."""
flavorprofile = flavor_profile_.flavorprofile
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_PUT)
self._validate_update_fp(context, id, flavorprofile)
if id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Flavor profile',
id=constants.NIL_UUID)
if not isinstance(flavorprofile.flavor_data, wtypes.UnsetType):
# Do a basic JSON validation on the metadata
try:
flavor_data_dict = jsonutils.loads(flavorprofile.flavor_data)
except Exception:
raise exceptions.InvalidOption(
value=flavorprofile.flavor_data,
option=constants.FLAVOR_DATA)
if isinstance(flavorprofile.provider_name, wtypes.UnsetType):
db_flavor_profile = self._get_db_flavor_profile(
context.session, id)
provider_driver = db_flavor_profile.provider_name
else:
provider_driver = flavorprofile.provider_name
# Validate that the provider driver supports the metadata
driver = driver_factory.get_driver(provider_driver)
driver_utils.call_provider(driver.name, driver.validate_flavor,
flavor_data_dict)
lock_session = db_api.get_session(autocommit=False)
try:
flavorprofile_dict = flavorprofile.to_dict(render_unsets=False)
if flavorprofile_dict:
self.repositories.flavor_profile.update(lock_session, id,
**flavorprofile_dict)
lock_session.commit()
except Exception:
with excutils.save_and_reraise_exception():
lock_session.rollback()
# Force SQL alchemy to query the DB, otherwise we get inconsistent
# results
context.session.expire_all()
db_flavor_profile = self._get_db_flavor_profile(context.session, id)
result = self._convert_db_to_type(
db_flavor_profile, profile_types.FlavorProfileResponse)
return profile_types.FlavorProfileRootResponse(flavorprofile=result)
@wsme_pecan.wsexpose(None, wtypes.text, status_code=204)
def delete(self, flavor_profile_id):
"""Deletes a Flavor Profile"""
context = pecan_request.context.get('octavia_context')
self._auth_validate_action(context, context.project_id,
constants.RBAC_DELETE)
if flavor_profile_id == constants.NIL_UUID:
raise exceptions.NotFound(resource='Flavor profile',
id=constants.NIL_UUID)
# Don't allow it to be deleted if it is in use by a flavor
if self.repositories.flavor.count(
context.session, flavor_profile_id=flavor_profile_id) > 0:
raise exceptions.ObjectInUse(object='Flavor profile',
id=flavor_profile_id)
try:
self.repositories.flavor_profile.delete(context.session,
id=flavor_profile_id)
except sa_exception.NoResultFound:
raise exceptions.NotFound(resource='Flavor profile',
id=flavor_profile_id)