deb-sahara/sahara/service/validation.py
Vitaly Gridnev 66e67d1736 Remove obsolete exceptions module
Exceptions module was removed from oslo and is not oslo-incubator
module at all

Change-Id: I2ef292b9d7a913025b51171e72e7c98dcdd93639
2015-02-06 16:22:37 +03:00

81 lines
2.5 KiB
Python

# Copyright (c) 2013 Mirantis Inc.
#
# 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.
import functools
import jsonschema
from sahara import exceptions as ex
from sahara.i18n import _
from sahara.utils import api as u
from sahara.utils import api_validator
def validate(schema, *validators):
def decorator(func):
@functools.wraps(func)
def handler(*args, **kwargs):
request_data = u.request_data()
try:
if schema:
validator = api_validator.ApiValidator(schema)
validator.validate(request_data)
if validators:
for validator in validators:
validator(**kwargs)
except jsonschema.ValidationError as e:
e.code = "VALIDATION_ERROR"
return u.bad_request(e)
except ex.SaharaException as e:
return u.bad_request(e)
except Exception as e:
return u.internal_error(
500, "Error occurred during validation", e)
return func(*args, **kwargs)
return handler
return decorator
def check_exists(get_func, *id_prop, **get_args):
def decorator(func):
@functools.wraps(func)
def handler(*args, **kwargs):
if id_prop and not get_args:
get_args['id'] = id_prop[0]
get_kwargs = {}
for get_arg in get_args:
get_kwargs[get_arg] = kwargs[get_args[get_arg]]
obj = None
try:
obj = get_func(**get_kwargs)
except Exception as e:
if 'notfound' not in e.__class__.__name__.lower():
raise e
if obj is None:
e = ex.NotFoundException(get_kwargs,
_('Object with %s not found'))
return u.not_found(e)
return func(*args, **kwargs)
return handler
return decorator