231 lines
9.2 KiB
Python
231 lines
9.2 KiB
Python
# coding=utf-8
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#
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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 oslo_versionedobjects import fields
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from magnum.common import exception
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from magnum.common import utils
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from magnum.db import api as dbapi
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from magnum.objects import base
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from magnum.objects import fields as m_fields
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@base.MagnumObjectRegistry.register
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class Bay(base.MagnumPersistentObject, base.MagnumObject,
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base.MagnumObjectDictCompat):
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# Version 1.0: Initial version
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VERSION = '1.0'
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dbapi = dbapi.get_instance()
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fields = {
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'id': fields.IntegerField(),
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'uuid': fields.UUIDField(nullable=True),
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'name': fields.StringField(nullable=True),
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'project_id': fields.StringField(nullable=True),
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'user_id': fields.StringField(nullable=True),
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'baymodel_id': fields.StringField(nullable=True),
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'stack_id': fields.StringField(nullable=True),
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'status': m_fields.BayStatusField(nullable=True),
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'status_reason': fields.StringField(nullable=True),
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'api_address': fields.StringField(nullable=True),
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'node_addresses': fields.ListOfStringsField(nullable=True),
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'node_count': fields.IntegerField(nullable=True),
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'master_count': fields.IntegerField(nullable=True),
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'discovery_url': fields.StringField(nullable=True),
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'master_addresses': fields.ListOfStringsField(nullable=True),
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}
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@staticmethod
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def _from_db_object(bay, db_bay):
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"""Converts a database entity to a formal object."""
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for field in bay.fields:
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bay[field] = db_bay[field]
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bay.obj_reset_changes()
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return bay
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@staticmethod
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def _from_db_object_list(db_objects, cls, context):
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"""Converts a list of database entities to a list of formal objects."""
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return [Bay._from_db_object(cls(context), obj) for obj in db_objects]
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@base.remotable_classmethod
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def get(cls, context, bay_id):
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"""Find a bay based on its id or uuid and return a Bay object.
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:param bay_id: the id *or* uuid of a bay.
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:returns: a :class:`Bay` object.
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"""
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if utils.is_int_like(bay_id):
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return cls.get_by_id(context, bay_id)
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elif utils.is_uuid_like(bay_id):
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return cls.get_by_uuid(context, bay_id)
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else:
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raise exception.InvalidIdentity(identity=bay_id)
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@base.remotable_classmethod
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def get_by_id(cls, context, bay_id):
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"""Find a bay based on its integer id and return a Bay object.
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:param bay_id: the id of a bay.
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:returns: a :class:`Bay` object.
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"""
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db_bay = cls.dbapi.get_bay_by_id(context, bay_id)
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bay = Bay._from_db_object(cls(context), db_bay)
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return bay
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@base.remotable_classmethod
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def get_by_uuid(cls, context, uuid):
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"""Find a bay based on uuid and return a :class:`Bay` object.
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:param uuid: the uuid of a bay.
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:param context: Security context
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:returns: a :class:`Bay` object.
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"""
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db_bay = cls.dbapi.get_bay_by_uuid(context, uuid)
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bay = Bay._from_db_object(cls(context), db_bay)
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return bay
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@base.remotable_classmethod
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def get_by_name(cls, context, name):
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"""Find a bay based on name and return a Bay object.
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:param name: the logical name of a bay.
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:param context: Security context
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:returns: a :class:`Bay` object.
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"""
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db_bay = cls.dbapi.get_bay_by_name(context, name)
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bay = Bay._from_db_object(cls(context), db_bay)
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return bay
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@base.remotable_classmethod
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def list(cls, context, limit=None, marker=None,
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sort_key=None, sort_dir=None, filters=None):
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"""Return a list of Bay objects.
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:param context: Security context.
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:param limit: maximum number of resources to return in a single result.
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:param marker: pagination marker for large data sets.
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:param sort_key: column to sort results by.
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:param sort_dir: direction to sort. "asc" or "desc".
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:param filters: filter dict, can includes 'baymodel_id', 'name',
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'node_count', 'stack_id', 'api_address',
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'node_addresses', 'project_id', 'user_id',
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'status'(should be a status list), 'master_count'.
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:returns: a list of :class:`Bay` object.
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"""
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db_bays = cls.dbapi.get_bay_list(context, limit=limit,
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marker=marker,
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sort_key=sort_key,
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sort_dir=sort_dir,
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filters=filters)
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return Bay._from_db_object_list(db_bays, cls, context)
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@base.remotable_classmethod
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def list_all(cls, context, limit=None, marker=None,
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sort_key=None, sort_dir=None, filters=None):
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"""Return all tenants of Bay objects.
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:param context: Security context, should be an admin context.
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:param limit: maximum number of resources to return in a single result.
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:param marker: pagination marker for large data sets.
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:param sort_key: column to sort results by.
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:param sort_dir: direction to sort. "asc" or "desc".
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:param filters: filter dict, can includes 'baymodel_id', 'name',
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'node_count', 'stack_id', 'api_address',
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'node_addresses', 'project_id', 'user_id',
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'status'(should be a status list), 'master_count'.
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:returns: a list of :class:`Bay` object.
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"""
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db_bays = cls.dbapi.get_bay_list(context, limit=limit,
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marker=marker,
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sort_key=sort_key,
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sort_dir=sort_dir,
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filters=filters,
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opts={'get_all_tenants': True})
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return Bay._from_db_object_list(db_bays, cls, context)
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@base.remotable
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def create(self, context=None):
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"""Create a Bay record in the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Bay(context)
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"""
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values = self.obj_get_changes()
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db_bay = self.dbapi.create_bay(values)
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self._from_db_object(self, db_bay)
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@base.remotable
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def destroy(self, context=None):
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"""Delete the Bay from the DB.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Bay(context)
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"""
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self.dbapi.destroy_bay(self.uuid)
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self.obj_reset_changes()
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@base.remotable
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def save(self, context=None):
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"""Save updates to this Bay.
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Updates will be made column by column based on the result
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of self.what_changed().
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Bay(context)
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"""
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updates = self.obj_get_changes()
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self.dbapi.update_bay(self.uuid, updates)
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self.obj_reset_changes()
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@base.remotable
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def refresh(self, context=None):
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"""Loads updates for this Bay.
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Loads a bay with the same uuid from the database and
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checks for updated attributes. Updates are applied from
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the loaded bay column by column, if there are any updates.
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:param context: Security context. NOTE: This should only
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be used internally by the indirection_api.
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Unfortunately, RPC requires context as the first
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argument, even though we don't use it.
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A context should be set when instantiating the
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object, e.g.: Bay(context)
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"""
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current = self.__class__.get_by_uuid(self._context, uuid=self.uuid)
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for field in self.fields:
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if self.obj_attr_is_set(field) and self[field] != current[field]:
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self[field] = current[field]
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