Julia Kreger
67da8d8c31
Adds the capability to utilize the indirection API model. The vast majority of this change is the removal of legacy comments and the swap of decorators on object methods to allow the Versioned Objects Indirection API to route the calls upon objects through the RPC layer to the conductor. In order to make these calls occur, we need to also send along a context, which is required to call the RPC layer, which is fine. Original tests still work in that API surface calls still ultimately trigger DB API calls in the backend, thus test changes are actually minimal, similar to very slight changes in trait retrieval as well. In that we really can't nest objects across the indirection layer. Change-Id: Ia161fef67b8a116fdf7cad9b2e559ba75263e196 Signed-off-by: Julia Kreger <juliaashleykreger@gmail.com>
283 lines
12 KiB
Python
283 lines
12 KiB
Python
# Copyright (c) 2016 Hitachi, Ltd.
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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_utils import strutils
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from oslo_utils import uuidutils
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from oslo_versionedobjects import base as object_base
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from ironic.common import exception
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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 fields as object_fields
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from ironic.objects import notification
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@base.IronicObjectRegistry.register
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class VolumeTarget(base.IronicObject,
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object_base.VersionedObjectDictCompat):
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# Version 1.0: Initial version
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# Version 1.1: Relevant methods changed to be remotable methods.
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VERSION = '1.1'
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dbapi = db_api.get_instance()
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fields = {
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'id': object_fields.IntegerField(),
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'uuid': object_fields.UUIDField(nullable=True),
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'node_id': object_fields.IntegerField(nullable=True),
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'volume_type': object_fields.StringField(nullable=True),
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'properties': object_fields.FlexibleDictField(nullable=True),
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'boot_index': object_fields.IntegerField(nullable=True),
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'volume_id': object_fields.StringField(nullable=True),
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'extra': object_fields.FlexibleDictField(nullable=True),
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}
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@object_base.remotable_classmethod
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def get(cls, context, ident):
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"""Find a volume target based on its ID or UUID.
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:param context: security context
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:param ident: the database primary key ID *or* the UUID of a volume
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target
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:returns: a :class:`VolumeTarget` object
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:raises: InvalidIdentity if ident is neither an integer ID nor a UUID
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:raises: VolumeTargetNotFound if no volume target with this ident
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exists
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"""
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if strutils.is_int_like(ident):
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return cls.get_by_id(context, ident)
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elif uuidutils.is_uuid_like(ident):
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return cls.get_by_uuid(context, ident)
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else:
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raise exception.InvalidIdentity(identity=ident)
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@object_base.remotable_classmethod
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def get_by_id(cls, context, db_id):
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"""Find a volume target based on its database ID.
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:param cls: the :class:`VolumeTarget`
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:param context: security context
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:param db_id: the database primary key (integer) ID of a volume target
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:returns: a :class:`VolumeTarget` object
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:raises: VolumeTargetNotFound if no volume target with this ID exists
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"""
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db_target = cls.dbapi.get_volume_target_by_id(db_id)
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target = cls._from_db_object(context, cls(), db_target)
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return target
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@object_base.remotable_classmethod
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def get_by_uuid(cls, context, uuid):
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"""Find a volume target based on its UUID.
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:param cls: the :class:`VolumeTarget`
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:param context: security context
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:param uuid: the UUID of a volume target
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:returns: a :class:`VolumeTarget` object
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:raises: VolumeTargetNotFound if no volume target with this UUID exists
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"""
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db_target = cls.dbapi.get_volume_target_by_uuid(uuid)
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target = cls._from_db_object(context, cls(), db_target)
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return target
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@object_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, project=None):
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"""Return a list of VolumeTarget 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 project: The associated node project to search with.
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:returns: a list of :class:`VolumeConnector` objects
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:returns: a list of :class:`VolumeTarget` objects
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:raises: InvalidParameterValue if sort_key does not exist
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"""
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db_targets = cls.dbapi.get_volume_target_list(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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project=project)
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return cls._from_db_object_list(context, db_targets)
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@object_base.remotable_classmethod
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def list_by_node_id(cls, context, node_id, limit=None, marker=None,
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sort_key=None, sort_dir=None, project=None):
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"""Return a list of VolumeTarget objects related to a given node ID.
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:param context: security context
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:param node_id: the integer ID of the node
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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 project: The associated node project to search with.
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:returns: a list of :class:`VolumeConnector` objects
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:returns: a list of :class:`VolumeTarget` objects
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:raises: InvalidParameterValue if sort_key does not exist
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"""
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db_targets = cls.dbapi.get_volume_targets_by_node_id(
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node_id,
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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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project=project)
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return cls._from_db_object_list(context, db_targets)
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@object_base.remotable_classmethod
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def list_by_volume_id(cls, context, volume_id, limit=None, marker=None,
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sort_key=None, sort_dir=None, project=None):
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"""Return a list of VolumeTarget objects related to a given volume ID.
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:param context: security context
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:param volume_id: the UUID of the volume
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:param limit: maximum number of volume targets to return in a
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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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:returns: a list of :class:`VolumeTarget` objects
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:raises: InvalidParameterValue if sort_key does not exist
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"""
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db_targets = cls.dbapi.get_volume_targets_by_volume_id(
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volume_id,
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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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project=project)
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return cls._from_db_object_list(context, db_targets)
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@object_base.remotable
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def create(self, context=None):
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"""Create a VolumeTarget 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.: VolumeTarget(context).
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:raises: VolumeTargetBootIndexAlreadyExists if a volume target already
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exists with the same node ID and boot index
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:raises: VolumeTargetAlreadyExists if a volume target with the same
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UUID exists
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"""
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values = self.do_version_changes_for_db()
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db_target = self.dbapi.create_volume_target(values)
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self._from_db_object(self._context, self, db_target)
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@object_base.remotable
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def destroy(self, context=None):
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"""Delete the VolumeTarget 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.: VolumeTarget(context).
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:raises: VolumeTargetNotFound if the volume target cannot be found
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"""
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self.dbapi.destroy_volume_target(self.uuid)
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self.obj_reset_changes()
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@object_base.remotable
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def save(self, context=None):
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"""Save updates to this VolumeTarget.
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Updates will be made column by column based on the result
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of self.do_version_changes_for_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.: VolumeTarget(context).
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:raises: InvalidParameterValue if the UUID is being changed
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:raises: VolumeTargetBootIndexAlreadyExists if a volume target already
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exists with the same node ID and boot index values
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:raises: VolumeTargetNotFound if the volume target cannot be found
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"""
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updates = self.do_version_changes_for_db()
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updated_target = self.dbapi.update_volume_target(self.uuid, updates)
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self._from_db_object(self._context, self, updated_target)
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@object_base.remotable
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def refresh(self, context=None):
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"""Loads updates for this VolumeTarget.
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Load a volume target with the same UUID from the database
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and check for updated attributes. If there are any updates,
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they are applied from the loaded volume target, column by column.
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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.: VolumeTarget(context).
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:raises: VolumeTargetNotFound if the volume target cannot be found
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"""
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current = self.get_by_uuid(self._context, uuid=self.uuid)
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self.obj_refresh(current)
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self.obj_reset_changes()
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@base.IronicObjectRegistry.register
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class VolumeTargetCRUDNotification(notification.NotificationBase):
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"""Notification emitted at CRUD of a volume target."""
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# Version 1.0: Initial version
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VERSION = '1.0'
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fields = {
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'payload': object_fields.ObjectField('VolumeTargetCRUDPayload')
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}
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@base.IronicObjectRegistry.register
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class VolumeTargetCRUDPayload(notification.NotificationPayloadBase):
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# Version 1.0: Initial Version
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VERSION = '1.0'
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SCHEMA = {
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'boot_index': ('target', 'boot_index'),
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'extra': ('target', 'extra'),
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'properties': ('target', 'properties'),
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'volume_id': ('target', 'volume_id'),
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'volume_type': ('target', 'volume_type'),
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'created_at': ('target', 'created_at'),
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'updated_at': ('target', 'updated_at'),
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'uuid': ('target', 'uuid'),
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}
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fields = {
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'boot_index': object_fields.IntegerField(nullable=True),
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'extra': object_fields.FlexibleDictField(nullable=True),
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'node_uuid': object_fields.UUIDField(),
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'properties': object_fields.FlexibleDictField(nullable=True),
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'volume_id': object_fields.StringField(nullable=True),
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'volume_type': object_fields.StringField(nullable=True),
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'created_at': object_fields.DateTimeField(nullable=True),
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'updated_at': object_fields.DateTimeField(nullable=True),
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'uuid': object_fields.UUIDField(),
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}
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def __init__(self, target, node_uuid):
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super(VolumeTargetCRUDPayload, self).__init__(node_uuid=node_uuid)
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self.populate_schema(target=target)
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