70 lines
2.3 KiB
Python
70 lines
2.3 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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from oslo_db import exception as db_exc
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from placement.db.sqlalchemy import models
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from placement import db_api
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from placement import exception
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CONSUMER_TYPE_TBL = models.ConsumerType.__table__
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_CONSUMER_TYPES_LOCK = 'consumer_types_sync'
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_CONSUMER_TYPES_SYNCED = False
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NULL_CONSUMER_TYPE_ALIAS = 'unknown'
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@db_api.placement_context_manager.writer
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def _create_in_db(ctx, name):
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db_obj = models.ConsumerType(name=name)
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try:
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db_obj.save(ctx.session)
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return db_obj
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except db_exc.DBDuplicateEntry:
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raise exception.ConsumerTypeExists(name=name)
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class ConsumerType(object):
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def __init__(self, context, id=None, name=None,
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updated_at=None, created_at=None):
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self._context = context
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self.id = id
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self.name = name
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self.updated_at = updated_at
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self.created_at = created_at
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@staticmethod
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def _from_db_object(ctx, target, source):
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target.id = source['id']
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target.name = source['name']
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target.created_at = source['created_at']
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target.updated_at = source['updated_at']
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target._context = ctx
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return target
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# NOTE(cdent): get_by_id and get_by_name are not currently used
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# but are left in place to indicate the smooth migration from
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# direct db access to using the AttributeCache.
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@classmethod
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def get_by_id(cls, ctx, id):
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return ctx.ct_cache.all_from_string(ctx.ct_cache.string_from_id(id))
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@classmethod
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def get_by_name(cls, ctx, name):
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return ctx.ct_cache.all_from_string(name)
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def create(self):
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ct = _create_in_db(self._context, self.name)
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self._from_db_object(self._context, self, ct)
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self._context.ct_cache.clear()
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