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# Copyright 2018 Huawei Technologies Co.,LTD.
# All Rights Reserved.
#
# 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_log import log as logging
from oslo_versionedobjects import base as object_base
from cyborg.common import exception
from cyborg.db import api as dbapi
from cyborg.objects import base
from cyborg.objects import fields as object_fields
# from cyborg.objects.attribute import Attribute
LOG = logging.getLogger(__name__)
@base.CyborgObjectRegistry.register
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat):
# Version 1.0: Initial version
VERSION = '1.0'
dbapi = dbapi.get_instance()
attributes_list = []
fields = {
'id': object_fields.IntegerField(nullable=False),
'uuid': object_fields.UUIDField(nullable=False),
'name': object_fields.StringField(nullable=False),
'parent_uuid': object_fields.UUIDField(nullable=True),
# parent_uuid refers to the id of the VF's parent node
'root_uuid': object_fields.UUIDField(nullable=True),
# root_uuid refers to the id of the VF's root which has to be a PF
'pcie_address': object_fields.StringField(nullable=False),
'host': object_fields.StringField(nullable=False),
'board': object_fields.StringField(nullable=False),
# board refers to a specific acc board type, e.g P100 GPU card
'vendor': object_fields.StringField(nullable=False),
'version': object_fields.StringField(nullable=False),
'type': object_fields.StringField(nullable=False),
# similar to the acc_type in accelerator.py
'assignable': object_fields.BooleanField(nullable=False),
# identify if a instance is in use
'instance_uuid': object_fields.UUIDField(nullable=True),
# The id of the virtualized accelerator instance
'availability': object_fields.StringField(nullable=False),
# identify the state of acc, e.g released/claimed/...
# 'accelerator_id': object_fields.IntegerField(nullable=False)
# Foreign key constrain to reference accelerator table.
}
def _get_parent_root_uuid(self):
obj_dep = Deployable.get(None, self.parent_uuid)
return obj_dep.root_uuid
def create(self, context):
"""Create a Deployable record in the DB."""
if 'uuid' not in self:
raise exception.ObjectActionError(action='create',
reason='uuid is required')
if self.parent_uuid is None:
self.root_uuid = self.uuid
else:
self.root_uuid = self._get_parent_root_uuid()
values = self.obj_get_changes()
db_dep = self.dbapi.deployable_create(context, values)
self._from_db_object(self, db_dep)
@classmethod
def get(cls, context, uuid):
"""Find a DB Deployable and return an Obj Deployable."""
db_dep = cls.dbapi.deployable_get(context, uuid)
obj_dep = cls._from_db_object(cls(context), db_dep)
return obj_dep
@classmethod
def get_by_host(cls, context, host):
"""Get a Deployable by host."""
db_deps = cls.dbapi.deployable_get_by_host(context, host)
return cls._from_db_object_list(context, db_deps)
@classmethod
def list(cls, context):
"""Return a list of Deployable objects."""
db_deps = cls.dbapi.deployable_list(context)
return cls._from_db_object_list(context, db_deps)
def save(self, context):
"""Update a Deployable record in the DB."""
updates = self.obj_get_changes()
db_dep = self.dbapi.deployable_update(context, self.uuid, updates)
self._from_db_object(self, db_dep)
def destroy(self, context):
"""Delete a Deployable from the DB."""
self.dbapi.deployable_delete(context, self.uuid)
self.obj_reset_changes()
def add_attribute(self, attribute):
"""add a attribute object to the attribute_list.
If the attribute already exists, it will update the value,
otherwise, the vf will be appended to the list.
"""
if not isinstance(attribute, Attribute):
raise exception.InvalidDeployType()
for exist_attr in self.attributes_list:
if base.obj_equal_prims(vf, exist_attr):
LOG.warning("The attribute already exists.")
return None
@classmethod
def get_by_filter(cls, context,
filters, sort_key='created_at',
sort_dir='desc', limit=None,
marker=None, join=None):
obj_dpl_list = []
db_dpl_list = cls.dbapi.deployable_get_by_filters(context, filters,
sort_key=sort_key,
sort_dir=sort_dir,
limit=limit,
marker=marker,
join_columns=join)
for db_dpl in db_dpl_list:
obj_dpl = cls._from_db_object(cls(context), db_dpl)
obj_dpl_list.append(obj_dpl)
return obj_dpl_list
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