116 lines
4.5 KiB
Python
116 lines
4.5 KiB
Python
# Copyright 2013 IBM Corp.
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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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from nova import db
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from nova import exception
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from nova import objects
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from nova.objects import base
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from nova.objects import fields
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class Migration(base.NovaPersistentObject, base.NovaObject):
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# Version 1.0: Initial version
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# Version 1.1: String attributes updated to support unicode
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VERSION = '1.1'
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fields = {
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'id': fields.IntegerField(),
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'source_compute': fields.StringField(nullable=True),
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'dest_compute': fields.StringField(nullable=True),
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'source_node': fields.StringField(nullable=True),
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'dest_node': fields.StringField(nullable=True),
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'dest_host': fields.StringField(nullable=True),
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'old_instance_type_id': fields.IntegerField(nullable=True),
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'new_instance_type_id': fields.IntegerField(nullable=True),
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'instance_uuid': fields.StringField(nullable=True),
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'status': fields.StringField(nullable=True),
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}
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@staticmethod
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def _from_db_object(context, migration, db_migration):
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for key in migration.fields:
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migration[key] = db_migration[key]
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migration._context = context
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migration.obj_reset_changes()
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return migration
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@base.remotable_classmethod
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def get_by_id(cls, context, migration_id):
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db_migration = db.migration_get(context, migration_id)
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return cls._from_db_object(context, cls(), db_migration)
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@base.remotable_classmethod
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def get_by_instance_and_status(cls, context, instance_uuid, status):
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db_migration = db.migration_get_by_instance_and_status(
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context, instance_uuid, status)
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return cls._from_db_object(context, cls(), db_migration)
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@base.remotable
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def create(self, context):
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if self.obj_attr_is_set('id'):
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raise exception.ObjectActionError(action='create',
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reason='already created')
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updates = self.obj_get_changes()
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db_migration = db.migration_create(context, updates)
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self._from_db_object(context, self, db_migration)
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@base.remotable
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def save(self, context):
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updates = self.obj_get_changes()
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updates.pop('id', None)
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db_migration = db.migration_update(context, self.id, updates)
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self._from_db_object(context, self, db_migration)
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self.obj_reset_changes()
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@property
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def instance(self):
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return objects.Instance.get_by_uuid(self._context, self.instance_uuid)
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class MigrationList(base.ObjectListBase, base.NovaObject):
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# Version 1.0: Initial version
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# Migration <= 1.1
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# Version 1.1: Added use_slave to get_unconfirmed_by_dest_compute
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VERSION = '1.1'
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fields = {
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'objects': fields.ListOfObjectsField('Migration'),
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}
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child_versions = {
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'1.0': '1.1',
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# NOTE(danms): Migration was at 1.1 before we added this
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'1.1': '1.1',
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}
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@base.remotable_classmethod
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def get_unconfirmed_by_dest_compute(cls, context, confirm_window,
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dest_compute, use_slave=False):
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db_migrations = db.migration_get_unconfirmed_by_dest_compute(
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context, confirm_window, dest_compute, use_slave=use_slave)
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return base.obj_make_list(context, cls(context), objects.Migration,
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db_migrations)
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@base.remotable_classmethod
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def get_in_progress_by_host_and_node(cls, context, host, node):
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db_migrations = db.migration_get_in_progress_by_host_and_node(
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context, host, node)
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return base.obj_make_list(context, cls(context), objects.Migration,
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db_migrations)
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@base.remotable_classmethod
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def get_by_filters(cls, context, filters):
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db_migrations = db.migration_get_all_by_filters(context, filters)
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return base.obj_make_list(context, cls(context), objects.Migration,
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db_migrations)
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