48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_serialization import jsonutils
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from neutron_lib._i18n import _
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from neutron_lib.api import validators
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from neutron_lib.db import constants as db_const
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from neutron_lib import exceptions
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def convert_az_list_to_string(az_list):
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"""Convert a list of availability zones into a string.
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:param az_list: A list of AZs.
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:returns: The az_list in string format.
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"""
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return jsonutils.dumps(az_list)
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def convert_az_string_to_list(az_string):
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"""Convert an AZ list in string format into a python list.
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:param az_string: The AZ list in string format.
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:returns: The python list of AZs build from az_string.
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"""
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return jsonutils.loads(az_string) if az_string else []
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def _validate_availability_zone_hints(data, valid_value=None):
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msg = validators.validate_list_of_unique_strings(data)
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if msg:
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return msg
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az_string = convert_az_list_to_string(data)
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if len(az_string) > db_const.AZ_HINTS_DB_LEN:
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msg = _("Too many availability_zone_hints specified")
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raise exceptions.InvalidInput(error_message=msg)
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