Source code for heat.objects.stack_lock

#
# 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
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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"""StackLock object."""

from oslo_versionedobjects import base
from oslo_versionedobjects import fields

from heat.db.sqlalchemy import api as db_api
from heat.objects import base as heat_base


[docs]class StackLock(
        heat_base.HeatObject,
        base.VersionedObjectDictCompat,
        base.ComparableVersionedObject,
):
    fields = {
        'engine_id': fields.StringField(nullable=True),
        'stack_id': fields.StringField(),
        'created_at': fields.DateTimeField(read_only=True),
        'updated_at': fields.DateTimeField(nullable=True),
    }

[docs]    @classmethod
    def create(cls, context, stack_id, engine_id):
        return db_api.stack_lock_create(context, stack_id, engine_id)

[docs]    @classmethod
    def steal(cls, context, stack_id, old_engine_id, new_engine_id):
        return db_api.stack_lock_steal(context, stack_id,
                                       old_engine_id,
                                       new_engine_id)

[docs]    @classmethod
    def release(cls, context, stack_id, engine_id):
        return db_api.stack_lock_release(context, stack_id, engine_id)

[docs]    @classmethod
    def get_engine_id(cls, context, stack_id):
        return db_api.stack_lock_get_engine_id(context, stack_id)