glance/glance/api/v1/filters.py

41 lines
1.4 KiB
Python

# Copyright 2012, Piston Cloud Computing, Inc.
# 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.
def validate(filter, value):
return FILTER_FUNCTIONS.get(filter, lambda v: True)(value)
def validate_int_in_range(min=0, max=None):
def _validator(v):
try:
if max is None:
return min <= int(v)
return min <= int(v) <= max
except ValueError:
return False
return _validator
def validate_boolean(v):
return v.lower() in ('none', 'true', 'false', '1', '0')
FILTER_FUNCTIONS = {'size_max': validate_int_in_range(), # build validator
'size_min': validate_int_in_range(), # build validator
'min_ram': validate_int_in_range(), # build validator
'protected': validate_boolean,
'is_public': validate_boolean, }