101 lines
3.2 KiB
Python
101 lines
3.2 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 ironic.db import api as db_api
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from ironic.objects import base
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from ironic.objects import utils
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class Node(base.IronicObject):
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dbapi = db_api.get_instance()
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fields = {
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'id': int,
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'uuid': utils.str_or_none,
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'chassis_id': utils.int_or_none,
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'instance_uuid': utils.str_or_none,
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'driver': utils.str_or_none,
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'driver_info': utils.dict_or_none,
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'properties': utils.dict_or_none,
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'reservation': utils.str_or_none,
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# One of states.POWER_ON|POWER_OFF|NOSTATE|ERROR
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'power_state': utils.str_or_none,
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# Set to one of states.POWER_ON|POWER_OFF when a power operation
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# starts, and set to NOSTATE when the operation finishes
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# (successfully or unsuccessfully).
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'target_power_state': utils.str_or_none,
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'provision_state': utils.str_or_none,
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'provision_updated_at': utils.datetime_or_none,
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'target_provision_state': utils.str_or_none,
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'maintenance': bool,
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# Any error from the most recent (last) asynchronous transaction
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# that started but failed to finish.
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'last_error': utils.str_or_none,
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'extra': utils.dict_or_none,
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}
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@staticmethod
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def _from_db_object(node, db_node):
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"""Converts a database entity to a formal object."""
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for field in node.fields:
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node[field] = db_node[field]
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node.obj_reset_changes()
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return node
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@base.remotable_classmethod
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def get_by_uuid(cls, context, uuid):
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"""Find a node based on uuid and return a Node object.
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:param uuid: the uuid of a node.
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:returns: a :class:`Node` object.
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"""
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db_node = cls.dbapi.get_node(uuid)
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return Node._from_db_object(cls(), db_node)
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@base.remotable
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def save(self, context):
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"""Save updates to this Node.
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Column-wise updates will be made based on the result of
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self.what_changed(). If target_power_state is provided,
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it will be checked against the in-database copy of the
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node before updates are made.
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:param context: Security context
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"""
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updates = self.obj_get_changes()
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self.dbapi.update_node(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):
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current = self.__class__.get_by_uuid(context, uuid=self.uuid)
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for field in self.fields:
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if (hasattr(self, base.get_attrname(field)) and
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self[field] != current[field]):
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self[field] = current[field]
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