40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
# Copyright (c) 2016 EMC Corporation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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VNX Constants
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This module includes re-declaration from storops which directly used
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by driver in module scope. That's to say:
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If a constant from storops is used in class level, function signature,
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module level, a re-declaration is needed in this file to avoid some static
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import error when storops is not installed.
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"""
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from oslo_utils import importutils
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storops = importutils.try_import('storops')
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if storops:
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from storops import exception as storops_ex
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VNXLunPreparingError = storops_ex.VNXLunPreparingError
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VNXTargetNotReadyError = storops_ex.VNXTargetNotReadyError
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MIGRATION_RATE_HIGH = storops.VNXMigrationRate.HIGH
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PROVISION_THICK = storops.VNXProvisionEnum.THICK
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else:
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VNXLunPreparingError = None
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MIGRATION_RATE_HIGH = None
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PROVISION_THICK = None
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VNXTargetNotReadyError = None
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