# coding=utf-8
#
#
# 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_utils import strutils
from oslo_utils import uuidutils
from ironic.common import exception
from ironic.common import utils
from ironic.db import api as dbapi
from ironic.objects import base
from ironic.objects import utils as obj_utils
[docs]class Port(base.IronicObject):
# Version 1.0: Initial version
# Version 1.1: Add get() and get_by_id() and get_by_address() and
# make get_by_uuid() only work with a uuid
# Version 1.2: Add create() and destroy()
# Version 1.3: Add list()
# Version 1.4: Add list_by_node_id()
VERSION = '1.4'
dbapi = dbapi.get_instance()
fields = {
'id': int,
'uuid': obj_utils.str_or_none,
'node_id': obj_utils.int_or_none,
'address': obj_utils.str_or_none,
'extra': obj_utils.dict_or_none,
}
@staticmethod
def _from_db_object(port, db_port):
"""Converts a database entity to a formal object."""
for field in port.fields:
port[field] = db_port[field]
port.obj_reset_changes()
return port
@staticmethod
def _from_db_object_list(db_objects, cls, context):
"""Converts a list of database entities to a list of formal objects."""
return [Port._from_db_object(cls(context), obj) for obj in db_objects]
@base.remotable_classmethod
[docs] def get(cls, context, port_id):
"""Find a port based on its id or uuid and return a Port object.
:param port_id: the id *or* uuid of a port.
:returns: a :class:`Port` object.
"""
if strutils.is_int_like(port_id):
return cls.get_by_id(context, port_id)
elif uuidutils.is_uuid_like(port_id):
return cls.get_by_uuid(context, port_id)
elif utils.is_valid_mac(port_id):
return cls.get_by_address(context, port_id)
else:
raise exception.InvalidIdentity(identity=port_id)
@base.remotable_classmethod
[docs] def get_by_id(cls, context, port_id):
"""Find a port based on its integer id and return a Port object.
:param port_id: the id of a port.
:returns: a :class:`Port` object.
"""
db_port = cls.dbapi.get_port_by_id(port_id)
port = Port._from_db_object(cls(context), db_port)
return port
@base.remotable_classmethod
[docs] def get_by_uuid(cls, context, uuid):
"""Find a port based on uuid and return a :class:`Port` object.
:param uuid: the uuid of a port.
:param context: Security context
:returns: a :class:`Port` object.
"""
db_port = cls.dbapi.get_port_by_uuid(uuid)
port = Port._from_db_object(cls(context), db_port)
return port
@base.remotable_classmethod
[docs] def get_by_address(cls, context, address):
"""Find a port based on address and return a :class:`Port` object.
:param address: the address of a port.
:param context: Security context
:returns: a :class:`Port` object.
"""
db_port = cls.dbapi.get_port_by_address(address)
port = Port._from_db_object(cls(context), db_port)
return port
@base.remotable_classmethod
[docs] def list(cls, context, limit=None, marker=None,
sort_key=None, sort_dir=None):
"""Return a list of Port objects.
:param context: Security context.
:param limit: maximum number of resources to return in a single result.
:param marker: pagination marker for large data sets.
:param sort_key: column to sort results by.
:param sort_dir: direction to sort. "asc" or "desc".
:returns: a list of :class:`Port` object.
"""
db_ports = cls.dbapi.get_port_list(limit=limit,
marker=marker,
sort_key=sort_key,
sort_dir=sort_dir)
return Port._from_db_object_list(db_ports, cls, context)
@base.remotable_classmethod
[docs] def list_by_node_id(cls, context, node_id, limit=None, marker=None,
sort_key=None, sort_dir=None):
"""Return a list of Port objects associated with a given node ID.
:param context: Security context.
:param node_id: the ID of the node.
:param limit: maximum number of resources to return in a single result.
:param marker: pagination marker for large data sets.
:param sort_key: column to sort results by.
:param sort_dir: direction to sort. "asc" or "desc".
:returns: a list of :class:`Port` object.
"""
db_ports = cls.dbapi.get_ports_by_node_id(node_id, limit=limit,
marker=marker,
sort_key=sort_key,
sort_dir=sort_dir)
return Port._from_db_object_list(db_ports, cls, context)
@base.remotable
[docs] def create(self, context=None):
"""Create a Port record in the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Port(context)
"""
values = self.obj_get_changes()
db_port = self.dbapi.create_port(values)
self._from_db_object(self, db_port)
@base.remotable
[docs] def destroy(self, context=None):
"""Delete the Port from the DB.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Port(context)
"""
self.dbapi.destroy_port(self.uuid)
self.obj_reset_changes()
@base.remotable
[docs] def save(self, context=None):
"""Save updates to this Port.
Updates will be made column by column based on the result
of self.what_changed().
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Port(context)
"""
updates = self.obj_get_changes()
self.dbapi.update_port(self.uuid, updates)
self.obj_reset_changes()
@base.remotable
[docs] def refresh(self, context=None):
"""Loads updates for this Port.
Loads a port with the same uuid from the database and
checks for updated attributes. Updates are applied from
the loaded port column by column, if there are any updates.
:param context: Security context. NOTE: This should only
be used internally by the indirection_api.
Unfortunately, RPC requires context as the first
argument, even though we don't use it.
A context should be set when instantiating the
object, e.g.: Port(context)
"""
current = self.__class__.get_by_uuid(self._context, uuid=self.uuid)
for field in self.fields:
if (hasattr(self, base.get_attrname(field)) and
self[field] != current[field]):
self[field] = current[field]