49 lines
2.1 KiB
Python
49 lines
2.1 KiB
Python
# 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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"""Error code symbols to be used in structured JSON error responses.
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These are strings to be used in the 'code' attribute, as described by
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the API guideline on `errors`_.
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There must be only one instance of any string value and it should have
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only one associated constant SYMBOL.
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In a WSGI handler (representing the sole handler for an HTTP method and
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URI) each error condition should get a separate error code. Reusing an
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error code in a different handler is not just acceptable, but useful.
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For example 'placement.inventory.inuse' is meaningful and correct in both
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``PUT /resource_providers/{uuid}/inventories`` and ``DELETE`` on the same
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URI.
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.. _errors: http://specs.openstack.org/openstack/api-wg/guidelines/errors.html
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"""
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# NOTE(cdent): This is the simplest thing that can possibly work, for now.
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# If it turns out we want to automate this, or put different resources in
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# different files, or otherwise change things, that's fine. The only thing
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# that needs to be maintained as the same are the strings that API end
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# users use. How they are created is completely fungible.
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# Do not change the string values. Once set, they are set.
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# Do not reuse string values. There should be only one symbol for any
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# value.
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DEFAULT = 'placement.undefined_code'
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INVENTORY_INUSE = 'placement.inventory.inuse'
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CONCURRENT_UPDATE = 'placement.concurrent_update'
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DUPLICATE_NAME = 'placement.duplicate_name'
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PROVIDER_IN_USE = 'placement.resource_provider.inuse'
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PROVIDER_CANNOT_DELETE_PARENT = (
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'placement.resource_provider.cannot_delete_parent')
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RESOURCE_PROVIDER_NOT_FOUND = 'placement.resource_provider.not_found'
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