class MyObj(base.CyborgPersistentObject, base.CyborgObject, base.CyborgObjectDictCompat): VERSION = '1.6' fields = { 'foo': fields.IntegerField(default=1), 'bar': fields.StringField(), 'missing': fields.StringField(), 'readonly': fields.IntegerField(read_only=True), 'rel_object': fields.ObjectField('MyOwnedObject', nullable=True), 'rel_objects': fields.ListOfObjectsField('MyOwnedObject', nullable=True), 'mutable_default': fields.ListOfStringsField(default=[]), } @staticmethod def _from_db_object(context, obj, db_obj): self = MyObj() self.foo = db_obj['foo'] self.bar = db_obj['bar'] self.missing = db_obj['missing'] self.readonly = 1 self._context = context return self def obj_load_attr(self, attrname): setattr(self, attrname, 'loaded!') def query(cls, context): obj = cls(context=context, foo=1, bar='bar') obj.obj_reset_changes() return obj def marco(self): return 'polo' def _update_test(self): self.bar = 'updated' def save(self): self.obj_reset_changes() def refresh(self): self.foo = 321 self.bar = 'refreshed' self.obj_reset_changes() def modify_save_modify(self): self.bar = 'meow' self.save() self.foo = 42 self.rel_object = MyOwnedObject(baz=42) def obj_make_compatible(self, primitive, target_version): super(MyObj, self).obj_make_compatible(primitive, target_version) # NOTE(danms): Simulate an older version that had a different # format for the 'bar' attribute if target_version == '1.1' and 'bar' in primitive: primitive['bar'] = 'old%s' % primitive['bar']
class Accelerator(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'name': object_fields.StringField(nullable=False), 'description': object_fields.StringField(nullable=True), 'project_id': object_fields.UUIDField(nullable=True), 'user_id': object_fields.UUIDField(nullable=True), 'device_type': object_fields.StringField(nullable=False), # The type of the accelerator device, e.g GPU, FPGA, ... 'acc_type': object_fields.StringField(nullable=False), # acc_type defines the usage of the accelerator, e.g Crypto 'acc_capability': object_fields.StringField(nullable=False), # acc_capability defines the specific capability, e.g AES 'vendor_id': object_fields.StringField(nullable=False), # vendor_id refers to ids like NVIDIA, XILINX, INTEL,... 'product_id': object_fields.StringField(nullable=False), # product_id refers to ids like P100 'remotable': object_fields.IntegerField(nullable=False), # remotable ids if remote accelerator is supported } def create(self, context): """Create an Accelerator record in the DB.""" values = self.obj_get_changes() db_acc = self.dbapi.accelerator_create(context, values) self._from_db_object(self, db_acc) @classmethod def get(cls, context, uuid): """Find a DB Accelerator and return an Obj Accelerator.""" db_acc = cls.dbapi.accelerator_get(context, uuid) obj_acc = cls._from_db_object(cls(context), db_acc) return obj_acc @classmethod def list(cls, context, limit, marker, sort_key, sort_dir, project_only): """Return a list of Accelerator objects.""" db_accs = cls.dbapi.accelerator_list(context, limit, marker, sort_key, sort_dir, project_only) return cls._from_db_object_list(db_accs, context) def save(self, context): """Update an Accelerator record in the DB.""" updates = self.obj_get_changes() db_acc = self.dbapi.accelerator_update(context, self.uuid, updates) self._from_db_object(self, db_acc) def destroy(self, context): """Delete the Accelerator from the DB.""" self.dbapi.accelerator_delete(context, self.uuid) self.obj_reset_changes()
class Attribute(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'deployable_id': object_fields.IntegerField(nullable=False), 'key': object_fields.StringField(nullable=False), 'value': object_fields.StringField(nullable=False) } def create(self, context): """Create an attribute record in the DB.""" if self.deployable_id is None: raise exception.AttributeInvalid() values = self.obj_get_changes() db_attr = self.dbapi.attribute_create(context, self.key, self.value) self._from_db_object(self, db_attr) @classmethod def get(cls, context, uuid): """Find a DB attribute and return an Obj attribute.""" db_attr = cls.dbapi.attribute_get(context, uuid) obj_attr = cls._from_db_object(cls(context), db_attr) return obj_attr @classmethod def attribute_get_by_deployable_uuid(cls, context, deployable_uuid): """Get an attribute by deployable uuid.""" db_attr = cls.dbapi.attribute_get_by_deployable_uuid( context, deployable_uuid) return cls._from_db_object_list(db_attr, context) def save(self, context): """Update an attribute record in the DB.""" updates = self.obj_get_changes() db_attr = self.dbapi.attribute_update(context, self.uuid, self.key, self.value) self._from_db_object(self, db_attr) def destroy(self, context): """Delete an attribute from the DB.""" self.dbapi.attribute_delete(context, self.uuid) self.obj_reset_changes() def set_key_value_pair(self, set_key, set_value): self.key = set_key self.value = set_value
class Accelerator(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'uuid': object_fields.UUIDField(nullable=False), 'name': object_fields.StringField(nullable=False), 'description': object_fields.StringField(nullable=True), 'project_id': object_fields.UUIDField(nullable=True), 'user_id': object_fields.UUIDField(nullable=True), 'device_type': object_fields.StringField(nullable=False), 'acc_type': object_fields.StringField(nullable=False), 'acc_capability': object_fields.StringField(nullable=False), 'vendor_id': object_fields.StringField(nullable=False), 'product_id': object_fields.StringField(nullable=False), 'remotable': object_fields.IntegerField(nullable=False), } def __init__(self, *args, **kwargs): super(Accelerator, self).__init__(*args, **kwargs) def create(self, context=None): """Create an Accelerator record in the DB.""" values = self.obj_get_changes() db_accelerator = self.dbapi.accelerator_create(context, values) self._from_db_object(context, self, db_accelerator)
class ARQ(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version # 1.1: v2 API and Nova integration VERSION = '1.1' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'state': object_fields.ARQStateField(nullable=False), 'device_profile_name': object_fields.StringField(nullable=False), 'device_profile_group_id': object_fields.IntegerField(nullable=False), # Fields populated by Nova after scheduling for binding 'hostname': object_fields.StringField(nullable=True), 'device_rp_uuid': object_fields.StringField(nullable=True), 'instance_uuid': object_fields.StringField(nullable=True), # Fields populated by Cyborg after binding 'attach_handle_type': object_fields.StringField(nullable=True), 'attach_handle_info': object_fields.DictOfStringsField(nullable=True), } @staticmethod def _from_db_object(arq, db_extarq): """Converts an ARQ to a formal object. :param arq: An object of the class ARQ :param db_extarq: A DB model of the object :return: The object of the class with the database entity added """ ahi = db_extarq['attach_handle_info'] if ahi is not None and ahi != '': d = jsonutils.loads(ahi) db_extarq['attach_handle_info'] = d else: db_extarq['attach_handle_info'] = {} for field in arq.fields: arq[field] = db_extarq[field] arq.obj_reset_changes() return arq
class ARQ(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'state': object_fields.ARQStateField(nullable=False), 'device_profile': object_fields.ObjectField('DeviceProfile', nullable=True), 'hostname': object_fields.StringField(nullable=True), 'device_rp_uuid': object_fields.UUIDField(nullable=True), 'device_instance_uuid': object_fields.UUIDField(nullable=True), 'attach_handle': object_fields.ObjectField('AttachHandle', nullable=True), } @staticmethod def _from_db_object(arq, db_extarq): """Converts an ARQ to a formal object. :param arq: An object of the class ARQ :param db_extarq: A DB model of the object :return: The object of the class with the database entity added """ device_profile_id = db_extarq.pop('device_profile_id', None) attach_handle_id = db_extarq.pop('attach_handle_id', None) for field in arq.fields: # if field == 'device_profile': # arq._load_device_profile(device_profile_id) # if field == 'attach_handle': # arq._load_device_profile(attach_handle_id) arq[field] = db_extarq[field] arq.obj_reset_changes() return arq def _load_device_profile(self, device_profile_id): self.device_profile = objects.DeviceProfile.\ get_by_id(self._context, device_profile_id) def _load_attach_handle(self, attach_handle_id): self.attach_handle = objects.AttachHandle.\ get_by_id(self._context, attach_handle_id)
class ControlpathID(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version # Version 1.1: Add cpid_info_obj VERSION = '1.1' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'device_id': object_fields.IntegerField(nullable=False), 'cpid_type': object_fields.EnumField(valid_values=constants.CPID_TYPE, nullable=False), 'cpid_info': object_fields.StringField(nullable=False) } @property def cpid_info_obj(self): return jsonutils.loads(self.cpid_info) @cpid_info_obj.setter def cpid_info_obj(self, cpid_info_obj): self.cpid_info = jsonutils.dumps(cpid_info_obj) def create(self, context): """Create a ControlPathID record in the DB.""" values = self.obj_get_changes() db_cp = self.dbapi.control_path_create(context, values) self._from_db_object(self, db_cp) @classmethod def get(cls, context, uuid): """Find a DB ControlpathID and return an Obj ControlpathID.""" db_cp = cls.dbapi.control_path_get_by_uuid(context, uuid) obj_cp = cls._from_db_object(cls(context), db_cp) return obj_cp @classmethod def list(cls, context, filters=None): """Return a list of ControlpathID objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_cps = cls.dbapi.control_path_get_by_filters(context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_cps = cls.dbapi.control_path_list(context) obj_cp_list = cls._from_db_object_list(db_cps, context) return obj_cp_list def save(self, context): """Update an ControlpathID record in the DB""" updates = self.obj_get_changes() db_cps = self.dbapi.control_path_update(context, self.uuid, updates) self._from_db_object(self, db_cps) def destroy(self, context): """Delete a ControlpathID from the DB.""" self.dbapi.control_path_delete(context, self.uuid) self.obj_reset_changes() @classmethod def get_by_device_id(cls, context, device_id): # control_path is unique for one device. cpid_filter = {'device_id': device_id} cpid_obj_list = ControlpathID.list(context, cpid_filter) if len(cpid_obj_list) != 0: return cpid_obj_list[0] else: return None @classmethod def get_by_device_id_cpidinfo(cls, context, device_id, cpid_info): cpid_filter = {'device_id': device_id, 'cpid_info': cpid_info} # the list could have one value or is empty. cpid_obj_list = ControlpathID.list(context, cpid_filter) if len(cpid_obj_list) != 0: return cpid_obj_list[0] else: return None
class AttachHandle(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'deployable_id': object_fields.IntegerField(nullable=False), 'cpid_id': object_fields.IntegerField(nullable=False), 'attach_type': object_fields.EnumField(valid_values=ATTACH_TYPE, nullable=False), # attach_info should be JSON here. 'attach_info': object_fields.StringField(nullable=False), 'in_use': object_fields.BooleanField(nullable=False, default=False) } def create(self, context): """Create a AttachHandle record in the DB.""" values = self.obj_get_changes() db_ah = self.dbapi.attach_handle_create(context, values) self._from_db_object(self, db_ah) @classmethod def get(cls, context, uuid): """Find a DB AttachHandle and return an Obj AttachHandle.""" db_ah = cls.dbapi.attach_handle_get_by_uuid(context, uuid) obj_ah = cls._from_db_object(cls(context), db_ah) return obj_ah @classmethod def get_by_id(cls, context, id): """Find a DB AttachHandle by ID and return an Obj AttachHandle.""" db_ah = cls.dbapi.attach_handle_get_by_id(context, id) obj_ah = cls._from_db_object(cls(context), db_ah) return obj_ah @classmethod def list(cls, context, filters={}): """Return a list of AttachHandle objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_ahs = cls.dbapi.attach_handle_get_by_filters(context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_ahs = cls.dbapi.attach_handle_list(context) obj_ah_list = cls._from_db_object_list(db_ahs, context) return obj_ah_list def save(self, context): """Update an AttachHandle record in the DB""" updates = self.obj_get_changes() db_ahs = self.dbapi.attach_handle_update(context, self.uuid, updates) self._from_db_object(self, db_ahs) def destroy(self, context): """Delete a AttachHandle from the DB.""" self.dbapi.attach_handle_delete(context, self.uuid) self.obj_reset_changes() @classmethod def get_ah_list_by_deployable_id(cls, context, deployable_id): ah_filter = {'deployable_id': deployable_id} ah_obj_list = AttachHandle.list(context, ah_filter) return ah_obj_list @classmethod def get_ah_by_depid_attachinfo(cls, context, deployable_id, attach_info): ah_filter = {'deployable_id': deployable_id, 'attach_info': attach_info} ah_obj_list = AttachHandle.list(context, ah_filter) if len(ah_obj_list) != 0: return ah_obj_list[0] else: return None
class Attribute(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'deployable_id': object_fields.IntegerField(nullable=False), 'key': object_fields.StringField(nullable=False), 'value': object_fields.StringField(nullable=False) } def create(self, context): """Create a attribute record in the DB.""" if self.deployable_id is None: raise exception.AttributeInvalid() values = self.obj_get_changes() db_attr = self.dbapi.attribute_create(context, values) self._from_db_object(self, db_attr) @classmethod def get(cls, context, uuid): """Find a DB attribute and return an Obj Deployable.""" db_attr = cls.dbapi.attribute_get(context, uuid) obj_attr = cls._from_db_object(cls(context), db_attr) return obj_attr @classmethod def get_by_deployable_id(cls, context, deployable_id): """Get a attribute by deployable_id""" db_attr = cls.dbapi.attribute_get_by_deployable_id( context, deployable_id) return cls._from_db_object_list(db_attr, context) @classmethod def get_by_filter(cls, context, filters): """Get a attribute by specified filters""" db_attr = cls.dbapi.attribute_get_by_filter(context, filters) return cls._from_db_object_list(db_attr, context) def save(self, context): """Update a attribute record in the DB.""" updates = self.obj_get_changes() db_attr = self.dbapi.attribute_update(context, self.uuid, self.key, self.value) self._from_db_object(self, db_attr) def destroy(self, context): """Delete a attribute from the DB.""" self.dbapi.attribute_delete(context, self.uuid) self.obj_reset_changes() def set_key_value_pair(self, set_key, set_value): self.key = set_key self.value = set_value @classmethod def get_by_dep_key(cls, context, dep_id, key): """Get the only one attribute with deployable_id and the key.""" attr_filter = {"deployable_id": dep_id, "key": key} attr_list = cls.get_by_filter(context, attr_filter) if len(attr_list) != 0: return attr_list[0] else: return None
class DeviceProfile(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'name': object_fields.StringField(nullable=False), 'profile_json': object_fields.StringField(nullable=False), } def create(self, context): """Create a device_profile record in the DB.""" values = self.obj_get_changes() db_device_profile = self.dbapi.device_profile_create(context, values) self._from_db_object(self, db_device_profile) @classmethod def get(cls, context, uuid): """Find a DB Device_profile and return a Obj Device_profile.""" db_device_profile = cls.dbapi.device_profile_get_by_uuid(context, uuid) obj_device_profile = cls._from_db_object(cls(context), db_device_profile) return obj_device_profile @classmethod def list(cls, context, filters={}): """Return a list of Device_profile objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_device_profiles = cls.dbapi.device_profile_list_by_filters( context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_device_profiles = cls.dbapi.device_profile_list(context) return cls._from_db_object_list(db_device_profiles, context) def save(self, context): """Update a Device_profile record in the DB.""" updates = self.obj_get_changes() db_device_profile = self.dbapi.device_profile_update( context, self.uuid, updates) self._from_db_object(self, db_device_profile) def destroy(self, context): """Delete the Device_profile from the DB.""" self.dbapi.device_profile_delete(context, self.uuid) self.obj_reset_changes() @classmethod def get_by_id(cls, context, id): """Find a device_profile and return an Obj DeviceProfile.""" db_dp = cls.dbapi.device_profile_get_by_id(context, id) obj_dp = cls._from_db_object(cls(context), db_dp) return obj_dp
class DriverDeployable(base.DriverObjectBase, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' fields = { 'name': object_fields.StringField(nullable=False), 'num_accelerators': object_fields.IntegerField(nullable=False), 'attribute_list': object_fields.ListOfObjectsField( 'DriverAttribute', default=[], nullable=True), # TODO() add field related to local_memory or just store in the # attribute list? 'attach_handle_list': object_fields.ListOfObjectsField( 'DriverAttachHandle', default=[], nullable=True), 'driver_name': object_fields.StringField(nullable=True) } def create(self, context, device_id, cpid_id): """Create a driver-side Deployable object into DB. This object will be stored in separate db tables: deployable & attach_handle & attribute table. """ # first store in deployable table through Deployable Object. deployable_obj = Deployable(context=context, name=self.name, num_accelerators=self.num_accelerators, device_id=device_id, driver_name=self.driver_name ) deployable_obj.create(context) # create attribute_list for this deployable if hasattr(self, 'attribute_list'): for driver_attr in self.attribute_list: driver_attr.create(context, deployable_obj.id) # create attach_handle_list for this deployable if hasattr(self, 'attach_handle_list'): for driver_attach_handle in self.attach_handle_list: driver_attach_handle.create(context, deployable_obj.id, cpid_id) def destroy(self, context, device_id): """delete one driver-side deployable by calling existing Deployable and AttachHandle Object. Use name&host to identify Deployable and attach_info to identify the AttachHandle """ # get deployable_id by name, get only one value. dep_obj = Deployable.get_by_name_deviceid(context, self.name, device_id) # delete attach_handle if hasattr(self, 'attach_handle_list'): for driver_ah_obj in self.attach_handle_list: # get attach_handle_obj, exist and only one. driver_ah_obj.destroy(context, dep_obj.id) # delete attribute_list if hasattr(self, 'attribute_list'): DriverAttribute.destroy(context, dep_obj.id) # delete dep_obj if dep_obj is not None: dep_obj.destroy(context) @classmethod def list(cls, context, device_id): """Form driver-side Deployable object list from DB for one device.""" # get deployable_obj_list for one device_id dep_obj_list = Deployable.get_list_by_device_id(context, device_id) driver_dep_obj_list = [] for dep_obj in dep_obj_list: # get driver_ah_obj_list for this dep_obj driver_ah_obj_list = DriverAttachHandle.list(context, dep_obj.id) # get driver_attr_obj_list fro this dep_obj driver_attr_obj_list = DriverAttribute.list(context, dep_obj.id) driver_dep_obj = cls(context=context, name=dep_obj.name, num_accelerators=dep_obj.num_accelerators, attribute_list=driver_attr_obj_list, attach_handle_list=driver_ah_obj_list) driver_dep_obj_list.append(driver_dep_obj) return driver_dep_obj_list @classmethod def get_by_name(cls, context, name): """Form driver-side Deployable object list from DB for one device.""" # get deployable_obj_list for one device_id dep_obj = Deployable.get_by_name(context, name) driver_ah_obj_list = DriverAttachHandle.list(context, dep_obj.id) # get driver_attr_obj_list fro this dep_obj driver_attr_obj_list = DriverAttribute.list(context, dep_obj.id) driver_dep_obj = cls(context=context, name=dep_obj.name, num_accelerators=dep_obj.num_accelerators, attribute_list=driver_attr_obj_list, attach_handle_list=driver_ah_obj_list) return driver_dep_obj
class ExtARQ(base.CyborgObject, object_base.VersionedObjectDictCompat, utils.FactoryMixin, ExtARQJobMixin): """ExtARQ is a wrapper around ARQ with Cyborg-private fields. Each ExtARQ object contains exactly one ARQ object as a field. But, in the db layer, ExtARQ and ARQ are represented together as a row in a single table. Both share a single UUID. ExtARQ version is bumped up either if any of its fields change or if the ARQ version changes. """ # Version 1.0: Initial version # 1.1: v2 API and Nova integration VERSION = '1.1' dbapi = dbapi.get_instance() fields = { 'arq': object_fields.ObjectField('ARQ'), # Cyborg-private fields # Left substate open now, fill them out during design/implementation # later. 'substate': object_fields.StringField(), 'deployable_uuid': object_fields.UUIDField(nullable=True), # The dp group is copied in to the extarq, so that any changes or # deletions to the device profile do not affect running VMs. 'device_profile_group': object_fields.DictOfStringsField(nullable=True), # For bound ARQs, we keep the attach handle ID here so that # it is easy to deallocate on unbind or delete. 'attach_handle_id': object_fields.IntegerField(nullable=True), } def create(self, context, device_profile_id=None): """Create an ExtARQ record in the DB.""" if 'device_profile_name' not in self.arq and not device_profile_id: raise exception.ObjectActionError( action='create', reason='Device profile name is required in ARQ') self.arq.state = constants.ARQ_INITIAL self.substate = constants.ARQ_INITIAL values = self.obj_get_changes() arq_obj = values.pop('arq', None) if arq_obj is not None: values.update(arq_obj.as_dict()) # Pass devprof id to db layer, to avoid repeated queries if device_profile_id is not None: values['device_profile_id'] = device_profile_id db_extarq = self.dbapi.extarq_create(context, values) self._from_db_object(self, db_extarq, context) return self @classmethod def get(cls, context, uuid, lock=False): """Find a DB ExtARQ and return an Obj ExtARQ.""" db_extarq = cls.dbapi.extarq_get(context, uuid) obj_arq = objects.ARQ(context) obj_extarq = cls(context) obj_extarq['arq'] = obj_arq obj_extarq = cls._from_db_object(obj_extarq, db_extarq, context) return obj_extarq @classmethod def list(cls, context, uuid_range=None): """Return a list of ExtARQ objects.""" db_extarqs = cls.dbapi.extarq_list(context, uuid_range) obj_extarq_list = cls._from_db_object_list(db_extarqs, context) return obj_extarq_list def save(self, context): """Update an ExtARQ record in the DB.""" updates = self.obj_get_changes() db_extarq = self.dbapi.extarq_update(context, self.arq.uuid, updates) self._from_db_object(self, db_extarq, context) def update_state(self, context, state, scope=None): """Update an ExtARQ state record in the DB.""" updates = self.obj_get_changes() updates["state"] = state db_extarq = self.dbapi.extarq_update(context, self.arq.uuid, updates, scope) self._from_db_object(self, db_extarq, context) def update_check_state(self, context, state, scope=None): if self.arq.state == state: LOG.info("ExtARQ(%s) state is %s, no need to update", self.arq.uuid, state) return False old = self.arq.state scope = scope or ARQ_STATES_TRANSFORM_MATRIX[state] self.update_state(context, state, scope) ea = ExtARQ.get(context, self.arq.uuid, lock=True) if not ea: raise exception.ResourceNotFound(resources='ExtARQ', msg="Can not find ExtARQ(%s)" % self.arq.uuid) current = ea.arq.state if state != current: msg = ("Failed to change ARQ state from %s to %s, the current " "state is %s" % (old, state, current)) LOG.error(msg) raise exception.ARQBadState(state=current, uuid=self.arq.uuid, expected=list(state)) return True def destroy(self, context): """Delete an ExtARQ from the DB.""" self.dbapi.extarq_delete(context, self.arq.uuid) self.obj_reset_changes() @classmethod def delete_by_uuid(cls, context, arq_uuid_list): """Delete a list of ARQs based on their UUIDs. This is not idempotent, i.e., if the first call to delete an ARQ has succeeded, second and later calls to delete the same ARQ will get errored out, but it will raise the exception only after all input arq being operated. """ unexisted = [] for uuid in arq_uuid_list: try: obj_extarq = objects.ExtARQ.get(context, uuid) # TODO() Defer deletion to conductor if obj_extarq.arq.state != constants.ARQ_INITIAL: obj_extarq.unbind(context) obj_extarq.destroy(context) except exception.ResourceNotFound: unexisted.append(uuid) continue if unexisted: LOG.warning('There are unexisted arqs: %s', unexisted) raise exception.ResourceNotFound(resource='ARQ', msg='with uuids %s' % unexisted) @classmethod def delete_by_instance(cls, context, instance_uuid): """Delete all ARQs for given instance. This is idempotent, i.e., it would have the same effect if called repeatedly with the same instance UUID. In other words, it would not raise an error on the second and later attempts even if the first one has deleted the ARQs. """ obj_extarqs = [ extarq for extarq in objects.ExtARQ.list(context) if extarq.arq['instance_uuid'] == instance_uuid ] for obj_extarq in obj_extarqs: LOG.info('Deleting obj_extarq uuid %s for instance %s', obj_extarq.arq['uuid'], obj_extarq.arq['instance_uuid']) obj_extarq.unbind(context) obj_extarq.destroy(context) def _get_glance_connection(self): default_user = '******' try: auth_user = CONF.image.username or default_user except Exception: auth_user = default_user return connection.Connection(cloud=auth_user) def _allocate_attach_handle(self, context, deployable): try: ah = AttachHandle.allocate(context, deployable.id) self.attach_handle_id = ah.id except Exception as e: LOG.error( "Failed to allocate attach handle for ARQ %s" "from deployable %s. Reason: %s", self.arq.uuid, deployable.uuid, str(e)) # TODO(Shaohe) Rollback? We have _update_placement, # should cancel it. self.update_check_state(context, constants.ARQ_BIND_FAILED) raise LOG.info('Attach handle(%s) for ARQ(%s) successfully.', ah.uuid, self.arq.uuid) def bind(self, context, deployable): self._allocate_attach_handle(context, deployable) # ARQ state changes get committed here self.update_check_state(context, constants.ARQ_BOUND) LOG.info('Update ARQ %s state to "Bound" successfully.', self.arq.uuid) # TODO(Shaohe) rollback self._unbind and self._delete # if (self.arq.state == constants.ARQ_DELETING # or self.arq.state == ARQ_UNBOUND): def unbind(self, context): arq = self.arq arq.hostname = None arq.device_rp_uuid = None arq.instance_uuid = None arq.state = constants.ARQ_UNBOUND # Unbind: mark attach handles as freed ah_id = self.attach_handle_id if ah_id: attach_handle = AttachHandle.get_by_id(context, ah_id) attach_handle.deallocate(context) self.attach_handle_id = None self.save(context) @classmethod def _fill_obj_extarq_fields(cls, context, db_extarq): """ExtARQ object has some fields that are not present in db_extarq. We fill them out here. """ # From the 2 fields in the ExtARQ, we obtain other fields. devprof_id = db_extarq['device_profile_id'] devprof_group_id = db_extarq['device_profile_group_id'] devprof = DeviceProfile.get_by_id(context, devprof_id) db_extarq['device_profile_name'] = devprof['name'] db_extarq['attach_handle_type'] = '' db_extarq['attach_handle_info'] = '' if db_extarq['state'] == 'Bound': # TODO() Do proper bind db_ah = cls.dbapi.attach_handle_get_by_id( context, db_extarq['attach_handle_id']) if db_ah is not None: db_extarq['attach_handle_type'] = db_ah['attach_type'] db_extarq['attach_handle_info'] = db_ah['attach_info'] else: raise exception.ResourceNotFound(resource='Attach Handle', msg='with uuid=%s' % db_extarq['attach_handle_id']) if db_extarq['deployable_id']: dep = objects.Deployable.get_by_id(context, db_extarq['deployable_id']) db_extarq['deployable_uuid'] = dep.uuid else: LOG.debug('Setting deployable UUID to zeroes for db_extarq %s', db_extarq['uuid']) db_extarq['deployable_uuid'] = ( '00000000-0000-0000-0000-000000000000') groups = devprof['groups'] db_extarq['device_profile_group'] = groups[devprof_group_id] return db_extarq @classmethod def _from_db_object(cls, extarq, db_extarq, context): """Converts an ExtARQ to a formal object. :param extarq: An object of the class ExtARQ :param db_extarq: A DB model of the object :return: The object of the class with the database entity added """ cls._fill_obj_extarq_fields(context, db_extarq) for field in extarq.fields: if field != 'arq': extarq[field] = db_extarq.get(field) extarq.arq = objects.ARQ() extarq.arq._from_db_object(extarq.arq, db_extarq) extarq.obj_reset_changes() return extarq @classmethod def _from_db_object_list(cls, db_objs, context): """Converts a list of ExtARQs to a list of formal objects.""" objs = [] for db_obj in db_objs: extarq = cls(context) obj = cls._from_db_object(extarq, db_obj, context) objs.append(obj) return objs def obj_get_changes(self): """Returns a dict of changed fields and their new values.""" changes = {} for key in self.obj_what_changed(): if key != 'arq': changes[key] = getattr(self, key) for key in self.arq.obj_what_changed(): changes[key] = getattr(self.arq, key) return changes
class MyObjElement(base.CyborgObject): fields = {'foo': fields.IntegerField()} def __init__(self, foo): super(MyObjElement, self).__init__() self.foo = foo
class MyOwnedObject(base.CyborgPersistentObject, base.CyborgObject): VERSION = '1.0' fields = {'baz': fields.IntegerField()}
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '2.0' dbapi = dbapi.get_instance() attributes_list = [] fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'parent_id': object_fields.IntegerField(nullable=True), # parent_id refers to the id of the deployable's parent node 'root_id': object_fields.IntegerField(nullable=True), # root_id refers to the id of the deployable's root to for nested tree 'name': object_fields.StringField(nullable=False), # name of the deployable 'num_accelerators': object_fields.IntegerField(nullable=False), # number of accelerators spawned by this deployable 'device_id': object_fields.IntegerField(nullable=False) # Foreign key constrain to reference device table } def _get_parent_root_id(self, context): obj_dep = Deployable.get_by_id(context, self.parent_id) return obj_dep.root_id def create(self, context): """Create a Deployable record in the DB.""" # FIXME: Add parent_uuid and root_uuid constrains when DB change to # parent_uuid & root_uuid values = self.obj_get_changes() db_dep = self.dbapi.deployable_create(context, values) self._from_db_object(self, db_dep) self.obj_reset_changes() del self.attributes_list[:] @classmethod def get(cls, context, uuid, with_attribute_list=True): """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) # retrieve all the attributes for this deployable if with_attribute_list: query = {"deployable_id": obj_dep.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dep.attributes_list = attr_get_list obj_dep.obj_reset_changes() return obj_dep @classmethod def get_by_id(cls, context, id): """Find a DB Deployable and return an Obj Deployable.""" dpl_query = {"id": id} obj_dep = Deployable.get_by_filter(context, dpl_query)[0] obj_dep.obj_reset_changes() return obj_dep @classmethod def list(cls, context, filters={}): """Return a list of Deployable objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_deps = cls.dbapi.deployable_get_by_filters(context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_deps = cls.dbapi.deployable_list(context) obj_dpl_list = cls._from_db_object_list(db_deps, context) for obj_dpl in obj_dpl_list: query = {"deployable_id": obj_dpl.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dpl.attributes_list = attr_get_list return obj_dpl_list 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.obj_reset_changes() self._from_db_object(self, db_dep) query = {"deployable_id": self.id} attr_get_list = Attribute.get_by_filter(context, query) self.attributes_list = attr_get_list def destroy(self, context): """Delete a Deployable from the DB.""" del self.attributes_list[:] self.dbapi.deployable_delete(context, self.uuid) self.obj_reset_changes() def add_attribute(self, context, key, value): """Add an attribute object to the attribute_list. If the attribute already exists, it will update the value, otherwise, the attribute will be appended to the list """ for exist_attr in self.attributes_list: if key == exist_attr.key: LOG.warning("The attribute already exists") if value != exist_attr.value: exist_attr.value = value exist_attr.save(context) return None # The attribute does not exist yet. Create it. attr_vals = { 'deployable_id': self.id, 'key': key, 'value': value } attr = Attribute(context, **attr_vals) attr.create(context) self.attributes_list.append(attr) def delete_attribute(self, context, attribute): """Remove an attribute from the attributes_list if the attribute does not exist, ignore it """ idx = 0 for exist_attribute in self.attributes_list: if base.obj_equal_prims(attribute, exist_attribute): removed_attribute = self.attributes_list.pop(idx) removed_attribute.destroy(context) return idx = idx + 1 LOG.warning("The removing attribute does not exist!") @classmethod def get_by_filter(cls, context, filters): obj_dpl_list = [] db_dpl_list = cls.dbapi.deployable_get_by_filters_with_attributes( context, filters) if db_dpl_list: for db_dpl in db_dpl_list: obj_dpl = cls._from_db_object(cls(context), db_dpl) query = {"deployable_id": obj_dpl.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dpl.attributes_list = attr_get_list obj_dpl_list.append(obj_dpl) return obj_dpl_list @staticmethod def _from_db_object(obj, db_obj): """Converts a deployable to a formal object. :param obj: An object of the class. :param db_obj: A DB model of the object :return: The object of the class with the database entity added """ for field in obj.fields: obj[field] = db_obj[field] obj.attributes_list = [] return obj @classmethod def get_list_by_device_id(cls, context, device_id): dep_filter = {'device_id': device_id} dep_obj_list = Deployable.list(context, dep_filter) return dep_obj_list @classmethod def get_by_name_deviceid(cls, context, name, device_id): dep_filter = {'name': name, 'device_id': device_id} dep_obj_list = Deployable.list(context, dep_filter) if len(dep_obj_list) != 0: return dep_obj_list[0] else: return None
class Deployable(base.CyborgObject, object_base.VersionedObjectDictCompat): # 1.0: Initial version # 1.1: Added rp_uuid, driver_name, bitstream_id, num_accel_in_use VERSION = '1.1' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'parent_id': object_fields.IntegerField(nullable=True), # parent_id refers to the id of the deployable's parent node 'root_id': object_fields.IntegerField(nullable=True), # root_id refers to the id of the deployable's root to for nested tree 'name': object_fields.StringField(nullable=False), # name of the deployable 'num_accelerators': object_fields.IntegerField(nullable=False), # number of accelerators spawned by this deployable 'device_id': object_fields.IntegerField(nullable=False), # Foreign key constrain to reference device table 'driver_name': object_fields.StringField(nullable=True), # Will change it to non-nullable after other driver report it. 'rp_uuid': object_fields.UUIDField(nullable=True), # UUID of the Resource provider corresponding to this deployable 'bitstream_id': object_fields.UUIDField(nullable=True), } def _get_parent_root_id(self, context): obj_dep = Deployable.get_by_id(context, self.parent_id) return obj_dep.root_id def create(self, context): """Create a Deployable record in the DB.""" # FIXME: Add parent_uuid and root_uuid constrains when DB change to # parent_uuid & root_uuid values = self.obj_get_changes() db_dep = self.dbapi.deployable_create(context, values) self._from_db_object(self, db_dep) self.obj_reset_changes() @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) obj_dep.obj_reset_changes() return obj_dep @classmethod def get_by_id(cls, context, id): """Find a DB Deployable and return an Obj Deployable.""" dpl_query = {"id": id} obj_dep = Deployable.get_by_filter(context, dpl_query)[0] obj_dep.obj_reset_changes() return obj_dep @classmethod def get_by_device_rp_uuid(cls, context, devrp_uuid): db_dep = cls.dbapi.deployable_get_by_rp_uuid(context, devrp_uuid) obj_dep = cls._from_db_object(cls(context), db_dep) return obj_dep @classmethod def list(cls, context, filters=None): """Return a list of Deployable objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_deps = cls.dbapi.deployable_get_by_filters(context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_deps = cls.dbapi.deployable_list(context) obj_dpl_list = cls._from_db_object_list(db_deps, context) return obj_dpl_list def save(self, context): """Update a Deployable record in the DB.""" updates = self.obj_get_changes() # TODO(Xinran): Will remove this if find some better way. updates.pop("uuid", None) updates.pop("created_at", None) if "updated_at" in updates.keys() and \ updates["updated_at"] is not None: updates["updated_at"] = updates["updated_at"].replace(tzinfo=None) db_dep = self.dbapi.deployable_update(context, self.uuid, updates) self.obj_reset_changes() self._from_db_object(self, db_dep) def update(self, context, updates): """Update provided key, value pairs""" self.dbapi.deployable_update(context, self.uuid, updates) def destroy(self, context): """Delete a Deployable from the DB.""" self.dbapi.deployable_delete(context, self.uuid) self.obj_reset_changes() @classmethod def get_by_filter(cls, context, filters): obj_dpl_list = [] db_dpl_list = cls.dbapi.deployable_get_by_filters(context, filters) if db_dpl_list: 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 @classmethod def get_list_by_device_id(cls, context, device_id): dep_filter = {'device_id': device_id} dep_obj_list = Deployable.list(context, dep_filter) return dep_obj_list @classmethod def get_by_name_deviceid(cls, context, name, device_id): dep_filter = {'name': name, 'device_id': device_id} dep_obj_list = Deployable.list(context, dep_filter) if len(dep_obj_list) != 0: return dep_obj_list[0] else: return None @classmethod def get_by_name(cls, context, name): dep_filter = {'name': name} dep_obj_list = Deployable.list(context, dep_filter) if len(dep_obj_list) != 0: return dep_obj_list[0] else: return None def get_cpid_list(self, context): query_filter = {"device_id": self.device_id} # TODO(Sundar) We should probably get cpid from objects layer, # not db layer cpid_list = self.dbapi.control_path_get_by_filters( context, query_filter) return cpid_list
class Port(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'uuid': object_fields.UUIDField(nullable=False), 'computer_node': object_fields.UUIDField(nullable=False), 'phy_port_name': object_fields.StringField(nullable=True), 'pci_slot': object_fields.StringField(nullable=True), 'product_id': object_fields.StringField(nullable=True), 'vendor_id': object_fields.StringField(nullable=False), 'is_used': object_fields.IntegerField(nullable=False), 'accelerator_id': object_fields.UUIDField(nullable=True), 'bind_instance_id': object_fields.UUIDField(nullable=True), 'bind_port_id': object_fields.UUIDField(nullable=True), 'device_type': object_fields.StringField(nullable=True), } def __init__(self, *args, **kwargs): super(Port, self).__init__(*args, **kwargs) def create(self, context=None): """Create an Port record in the DB, this can be used by cyborg-agents to auto register physical port of network cards.""" values = self.obj_get_changes() db_port= self.dbapi.port_create(context, values) self._from_db_object(self, db_port) @classmethod def get(cls, context, uuid): """Find a DB Port and return an Ojb Port.""" db_port = cls.dbapi.port_get(context, uuid) obj_port = cls._from_db_object(cls(context), db_port) return obj_port @classmethod def get(cls, context, phy_port_name, pci_slot, computer_node): """Return a list of Port objects.""" db_port = cls.dbapi.port_get(context, phy_port_name=phy_port_name, pci_slot=pci_slot, computer_node=computer_node) if db_port: obj_port = cls._from_db_object(cls(context), db_port) return obj_port else: return None @classmethod def list(cls, context, limit, marker, sort_key, sort_dir): """Return a list of Port objects.""" db_ports = cls.dbapi.port_list(context, limit, marker, sort_key, sort_dir) obj_ports = cls._from_db_object_list(context, db_ports) return obj_ports def save(self, context): """Update a Port record in the DB.""" updates = self.obj_get_changes() db_port = self.dbapi.port_update(context, self.uuid, updates) self._from_db_object(self, db_port) def destory(self, context): """Delete the Port record in the DB.""" self.dbapi.port_destory(context, self.uuid) self.obj_reset_changes()
class Device(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version # Version 1.1: Add AICHIP, GENERIC type VERSION = '1.1' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.UUIDField(nullable=False), 'type': object_fields.EnumField(valid_values=constants.DEVICE_TYPE, nullable=False), 'vendor': object_fields.StringField(nullable=False), 'model': object_fields.StringField(nullable=False), 'std_board_info': object_fields.StringField(nullable=True), 'vendor_board_info': object_fields.StringField(nullable=True), 'hostname': object_fields.StringField(nullable=False), } def create(self, context): """Create a device record in the DB.""" values = self.obj_get_changes() db_device = self.dbapi.device_create(context, values) self._from_db_object(self, db_device) @classmethod def get(cls, context, uuid): """Find a DB Device and return an Obj Device.""" db_device = cls.dbapi.device_get(context, uuid) obj_device = cls._from_db_object(cls(context), db_device) return obj_device @classmethod def list(cls, context, filters=None): """Return a list of Device objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'created_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_devices = cls.dbapi.device_list_by_filters( context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_devices = cls.dbapi.device_list(context) return cls._from_db_object_list(db_devices, context) def save(self, context): """Update a Device record in the DB.""" updates = self.obj_get_changes() db_device = self.dbapi.device_update(context, self.uuid, updates) self._from_db_object(self, db_device) def destroy(self, context): """Delete the Device from the DB.""" self.dbapi.device_delete(context, self.uuid) self.obj_reset_changes() @classmethod def get_list_by_hostname(cls, context, hostname): """get device object list from the hostname. return [] if not exist. """ dev_filter = {'hostname': hostname} device_obj_list = Device.list(context, dev_filter) return device_obj_list @classmethod def get_by_device_id(cls, context, device_id): """get device object by the device ID.""" db_device = cls.dbapi.device_get_by_id(context, device_id) obj_device = cls._from_db_object(cls(context), db_device) return obj_device
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 'address': object_fields.StringField(nullable=False), # if interface_type is pci(/mdev), address is the pci_address(/path) '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), # type of deployable, e.g, pf/vf/*f 'interface_type': object_fields.StringField(nullable=False), # interface to hypervisor(libvirt), e.g, pci/mdev... 'assignable': object_fields.BooleanField(nullable=False), # identify if an accelerator 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 not hasattr(self, 'parent_uuid') or 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) del self.attributes_list[:] @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) # retrieve all the attrobutes for this deployable query = {"deployable_id": obj_dep.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dep.attributes_list = attr_get_list 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) obj_dpl_list = cls._from_db_object_list(db_deps, context) for obj_dpl in obj_dpl_list: query = {"deployable_id": obj_dpl.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dpl.attributes_list = attr_get_list return obj_dpl_list @classmethod def list(cls, context, filters={}): """Return a list of Deployable objects.""" if filters: sort_dir = filters.pop('sort_dir', 'desc') sort_key = filters.pop('sort_key', 'create_at') limit = filters.pop('limit', None) marker = filters.pop('marker_obj', None) db_deps = cls.dbapi.deployable_get_by_filters(context, filters, sort_dir=sort_dir, sort_key=sort_key, limit=limit, marker=marker) else: db_deps = cls.dbapi.deployable_list(context) obj_dpl_list = cls._from_db_object_list(db_deps, context) for obj_dpl in obj_dpl_list: query = {"deployable_id": obj_dpl.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dpl.attributes_list = attr_get_list return obj_dpl_list 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) query = {"deployable_id": self.id} attr_get_list = Attribute.get_by_filter(context, query) self.attributes_list = attr_get_list def destroy(self, context): """Delete a Deployable from the DB.""" del self.attributes_list[:] self.dbapi.deployable_delete(context, self.uuid) self.obj_reset_changes() def add_attribute(self, context, key, value): """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 """ for exist_attr in self.attributes_list: if key == exist_attr.key: LOG.warning("The attribute already exists") if value != exist_attr.value: exist_attr.value = value exist_attr.save(context) return None # The attribute does not exist yet. Create it. attr_vals = {'deployable_id': self.id, 'key': key, 'value': value} attr = Attribute(context, **attr_vals) attr.create(context) self.attributes_list.append(attr) def delete_attribute(self, context, attribute): """remove an attribute from the attributes_list if the attribute does not exist, ignore it """ idx = 0 for exist_attribute in self.attributes_list: if base.obj_equal_prims(attribute, exist_attribute): removed_attribute = self.attributes_list.pop(idx) removed_attribute.destroy(context) return idx = idx + 1 LOG.warning("The removing attribute does not exist!") @classmethod def get_by_filter(cls, context, filters): obj_dpl_list = [] db_dpl_list = cls.dbapi.deployable_get_by_filters_with_attributes( context, filters) if db_dpl_list: for db_dpl in db_dpl_list: obj_dpl = cls._from_db_object(cls(context), db_dpl) query = {"deployable_id": obj_dpl.id} attr_get_list = Attribute.get_by_filter(context, query) obj_dpl.attributes_list = attr_get_list obj_dpl_list.append(obj_dpl) return obj_dpl_list @classmethod def _from_db_object(cls, obj, db_obj): """Converts a deployable to a formal object. :param obj: An object of the class. :param db_obj: A DB model of the object :return: The object of the class with the database entity added """ obj = base.CyborgObject._from_db_object(obj, db_obj) obj.attributes_list = [] return obj
class DeviceProfile(base.CyborgObject, object_base.VersionedObjectDictCompat): # Version 1.0: Initial version VERSION = '1.0' dbapi = dbapi.get_instance() fields = { 'id': object_fields.IntegerField(nullable=False), 'uuid': object_fields.StringField(nullable=False), 'name': object_fields.StringField(nullable=False), 'groups': object_fields.ListOfDictOfNullableStringsField(), } def _to_profile_json(self, obj_changes): if 'groups' in obj_changes: # Convert to profile_json string d = {"groups": obj_changes['groups']} profile_json = jsonutils.dumps(d) obj_changes['profile_json'] = profile_json obj_changes.pop('groups', None) # del 'groups' else: raise exception.DeviceProfileGroupsExpected() def create(self, context): """Create a Device Profile record in the DB.""" # TODO() validate with a JSON schema if 'name' not in self: raise exception.ObjectActionError(action='create', reason='name is required') values = self.obj_get_changes() self._to_profile_json(values) db_devprof = self.dbapi.device_profile_create(context, values) self._from_db_object(self, db_devprof) @classmethod def get_by_uuid(cls, context, uuid): """Find a DB Device_profile and return an Obj Device_profile.""" db_devprof = cls.dbapi.device_profile_get_by_uuid(context, uuid) obj_devprof = cls._from_db_object(cls(context), db_devprof) return obj_devprof @classmethod def get_by_name(cls, context, name): """Find a DB Device Profile and return an Obj Device Profile.""" db_devprof = cls.dbapi.device_profile_get(context, name) obj_devprof = cls._from_db_object(cls(context), db_devprof) return obj_devprof @classmethod def list(cls, context): # TODO() add filters, limits, pagination, etc. """Return a list of Device Profile objects.""" db_devprofs = cls.dbapi.device_profile_list(context) obj_dp_list = cls._from_db_object_list(db_devprofs, context) return obj_dp_list def save(self, context): """Update a Device Profile record in the DB.""" updates = self.obj_get_changes() self._to_profile_json(updates) db_devprof = self.dbapi.device_profile_update(context, self.name, updates) self._from_db_object(self, db_devprof) def destroy(self, context): """Delete a Device Profile from the DB.""" self.dbapi.device_profile_delete(context, self.uuid) self.obj_reset_changes() @classmethod def _from_db_object(cls, obj, db_obj): """Converts a device_profile to a formal object. :param obj: An object of the class. :param db_obj: A DB model of the object :return: The object of the class with the database entity added """ # Convert from profile_json to 'groups' ListOfDictOfStrings d = jsonutils.loads(db_obj['profile_json']) db_obj['groups'] = d['groups'] obj = base.CyborgObject._from_db_object(obj, db_obj) return obj
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