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# Copyright 2015 IBM Corp.
#
# 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.
"""Utilities around Universally-Unique Identifiers (UUIDs)."""
from oslo_utils import uuidutils
def convert_uuid_to_pvm(uuid):
"""Converts a standard UUID to PowerVM format
PowerVM uuids always set the byte 0, bit 0 to 0.
:param uuid: A standard format uuid string
:returns: A PowerVM compliant uuid
"""
return "%x%s" % (int(uuid[0], 16) & 7, uuid[1:])
def id_or_uuid(an_id):
"""Sanitizes a short ID or string UUID, and indicates which was used.
Use as:
is_uuid, lpar_id = id_or_uuid(lpar_id)
if is_uuid: # lpar_id is a string UUID
else: # lpar_id is LPAR short ID of type int
:param an_id: Short ID (may be string or int) or string UUID of, e.g., an
LPAR.
:return: Boolean. If True, the other return is a UUID string. If False,
it is an integer.
:return: The input ID, either converted to int, or in its original string
form if a UUID.
"""
if uuidutils.is_uuid_like(an_id):
is_uuid = True
ret_id = an_id
else:
is_uuid = False
ret_id = int(an_id)
return is_uuid, ret_id
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