Tacker: ETSI MANO NFV Orchestrator / VNF Manager. See https://wiki.openstack.org/wiki/Tacker
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# Copyright (C) 2020 NTT DATA
# 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.
from tacker.api.common import attribute_filter
from tacker.common import exceptions as exception
class BaseViewBuilder(object):
@classmethod
def validate_filter(cls, filters=None):
if not filters:
return
return attribute_filter.parse_filter_rule(filters,
target=cls.FLATTEN_ATTRIBUTES)
@classmethod
def validate_attribute_fields(cls, all_fields=None, fields=None,
exclude_fields=None, exclude_default=None):
if all_fields and (fields or exclude_fields or exclude_default):
msg = ("Invalid query parameter combination: 'all_fields' "
"cannot be combined with 'fields' or 'exclude_fields' "
"or 'exclude_default'")
raise exception.ValidationError(msg)
if fields and (all_fields or exclude_fields):
msg = ("Invalid query parameter combination: 'fields' "
"cannot be combined with 'all_fields' or 'exclude_fields' ")
raise exception.ValidationError(msg)
if exclude_fields and (all_fields or fields or exclude_default):
msg = ("Invalid query parameter combination: 'exclude_fields' "
"cannot be combined with 'all_fields' or 'fields' "
"or 'exclude_default'")
raise exception.ValidationError(msg)
if exclude_default and (all_fields or exclude_fields):
msg = ("Invalid query parameter combination: 'exclude_default' "
"cannot be combined with 'all_fields' or 'exclude_fields' ")
raise exception.ValidationError(msg)
def _validate_complex_attributes(query_parameter, fields):
msg = ("Invalid query parameter '%(query_parameter)s'. "
"Value: %(field)s")
for field in fields:
if field in cls.COMPLEX_ATTRIBUTES:
continue
elif '*' in field:
# Field should never contain '*' as it's reserved for
# special purpose for handling key-value pairs.
raise exception.ValidationError(msg %
{"query_parameter": query_parameter,
"field": field})
elif field not in cls.FLATTEN_COMPLEX_ATTRIBUTES:
# Special case for field with key-value pairs.
# In this particular case, key will act as an attribute
# in structure so you need to treat it differently than
# other fields. All key-value pair field will be post-fix
# with '*' in FLATTEN_COMPLEX_ATTRIBUTES. Request
# with field which contains '*' will be treated as an
# error.
special_field = False
for attribute in cls.FLATTEN_COMPLEX_ATTRIBUTES:
if '*' in attribute and field.startswith(
attribute.split('*')[0]):
special_field = True
if not special_field:
raise exception.ValidationError(msg %
{"query_parameter": query_parameter,
"field": field})
if fields:
_validate_complex_attributes("fields", fields.split(','))
elif exclude_fields:
_validate_complex_attributes("exclude_fields",
exclude_fields.split(","))