fef94d0d73
Save space in the db by allowing templates (especially nested templates) to reference the same template files dictionary objects, now stored in the table raw_template_files. Also, cache template files per heat-engine process as a RAM/performance optimization. Also, begin to allow for future rolling upgrades with oslo.versionedobjects. Change-Id: I1842ea6ba6773a135b1007b793a5f0884417747d Closes-Bug: 1570983
52 lines
1.6 KiB
Python
52 lines
1.6 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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"""RawTemplateFiles object."""
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from oslo_versionedobjects import base
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from oslo_versionedobjects import fields
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from heat.db import api as db_api
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from heat.objects import base as heat_base
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from heat.objects import fields as heat_fields
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@heat_base.HeatObjectRegistry.register
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class RawTemplateFiles(
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heat_base.HeatObject,
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base.VersionedObjectDictCompat,
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base.ComparableVersionedObject,
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):
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# Version 1.0: Initial Version
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VERSION = '1.0'
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fields = {
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'id': fields.IntegerField(),
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'files': heat_fields.JsonField(read_only=True),
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}
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@staticmethod
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def _from_db_object(context, tmpl_files, db_tmpl_files):
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for field in tmpl_files.fields:
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tmpl_files[field] = db_tmpl_files[field]
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tmpl_files._context = context
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tmpl_files.obj_reset_changes()
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return tmpl_files
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@classmethod
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def create(cls, context, values):
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return cls._from_db_object(context, cls(),
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db_api.raw_template_files_create(context,
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values))
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