def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason='already created')
updates = self.cinder_obj_get_changes()
db_backup = db.backup_create(self._context, updates)
self._from_db_object(self._context, self, db_backup)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
with self.obj_as_admin():
db_attachment = db.volume_attach(self._context, updates)
self._from_db_object(self._context, self, db_attachment)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already_created'))
updates = self.cinder_obj_get_changes()
if 'cgsnapshots' in updates:
raise exception.ObjectActionError(action='create',
reason=_('cgsnapshots assigned'))
if 'volumes' in updates:
raise exception.ObjectActionError(action='create',
reason=_('volumes assigned'))
db_consistencygroups = db.consistencygroup_create(
self._context, updates)
self._from_db_object(self._context, self, db_consistencygroups)
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
db_volume_type = volume_types.create(self._context, self.name,
self.extra_specs, self.is_public,
self.projects, self.description)
self._from_db_object(self._context, self, db_volume_type)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'volume_types' in updates:
msg = _('Cannot save volume_types changes in group object '
'update.')
raise exception.ObjectActionError(action='save', reason=msg)
if 'volumes' in updates:
msg = _('Cannot save volumes changes in group object update.')
raise exception.ObjectActionError(action='save', reason=msg)
if 'group_snapshots' in updates:
msg = _('Cannot save group_snapshots changes in group object '
'update.')
raise exception.ObjectActionError(action='save', reason=msg)
db.group_update(self._context, self.id, updates)
self.obj_reset_changes()
def save(self):
updates = self.cinder_obj_get_changes()
if 'cluster' in updates:
raise exception.ObjectActionError(action='save',
reason=_('cluster changed'))
if updates:
db.service_update(self._context, self.id, updates)
self.obj_reset_changes()
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'consistencygroup' in updates:
# NOTE(xyang): Allow this to pass if 'consistencygroup' is
# set to None. This is to support backward compatibility.
if updates.get('consistencygroup'):
raise exception.ObjectActionError(
action='save', reason=_('consistencygroup changed'))
if 'group' in updates:
raise exception.ObjectActionError(
action='save', reason=_('group changed'))
if 'glance_metadata' in updates:
raise exception.ObjectActionError(
action='save', reason=_('glance_metadata changed'))
if 'snapshots' in updates:
raise exception.ObjectActionError(
action='save', reason=_('snapshots changed'))
if 'cluster' in updates:
raise exception.ObjectActionError(
action='save', reason=_('cluster changed'))
if 'metadata' in updates:
# Metadata items that are not specified in the
# self.metadata will be deleted
metadata = updates.pop('metadata', None)
self.metadata = db.volume_metadata_update(self._context,
self.id, metadata,
True)
if self._context.is_admin and 'admin_metadata' in updates:
metadata = updates.pop('admin_metadata', None)
self.admin_metadata = db.volume_admin_metadata_update(
self._context, self.id, metadata, True)
# When we are creating a volume and we change from 'creating'
# status to 'downloading' status we have to change the worker entry
# in the DB to reflect this change, otherwise the cleanup will
# not be performed as it will be mistaken for a volume that has
# been somehow changed (reset status, forced operation...)
if updates.get('status') == 'downloading':
self.set_worker()
# updates are changed after popping out metadata.
if updates:
db.volume_update(self._context, self.id, updates)
self.obj_reset_changes()
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'metadata':
self.metadata = db.volume_metadata_get(self._context, self.id)
elif attrname == 'admin_metadata':
self.admin_metadata = {}
if self._context.is_admin:
self.admin_metadata = db.volume_admin_metadata_get(
self._context, self.id)
elif attrname == 'glance_metadata':
try:
# NOTE(dulek): We're using alias here to have conversion from
# list to dict done there.
self.volume_glance_metadata = db.volume_glance_metadata_get(
self._context, self.id)
except exception.GlanceMetadataNotFound:
# NOTE(dulek): DB API raises when volume has no
# glance_metadata. Silencing this because at this level no
# metadata is a completely valid result.
self.glance_metadata = {}
elif attrname == 'volume_type':
# If the volume doesn't have volume_type, VolumeType.get_by_id
# would trigger a db call which raise VolumeTypeNotFound exception.
self.volume_type = (objects.VolumeType.get_by_id(
self._context, self.volume_type_id)
if self.volume_type_id else None)
elif attrname == 'volume_attachment':
attachments = objects.VolumeAttachmentList.get_all_by_volume_id(
self._context, self.id)
self.volume_attachment = attachments
elif attrname == 'consistencygroup':
consistencygroup = objects.ConsistencyGroup.get_by_id(
self._context, self.consistencygroup_id)
self.consistencygroup = consistencygroup
elif attrname == 'snapshots':
self.snapshots = objects.SnapshotList.get_all_for_volume(
self._context, self.id)
elif attrname == 'cluster':
# If this volume doesn't belong to a cluster (cluster_name is
# empty), then cluster field will be None.
if self.cluster_name:
self.cluster = objects.Cluster.get_by_id(
self._context, name=self.cluster_name)
else:
self.cluster = None
elif attrname == 'group':
group = objects.Group.get_by_id(self._context, self.group_id)
self.group = group
self.obj_reset_changes(fields=[attrname])
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
if 'volume' in updates:
raise exception.ObjectActionError(action='create',
reason=_('volume assigned'))
if 'cgsnapshot' in updates:
raise exception.ObjectActionError(action='create',
reason=_('cgsnapshot assigned'))
if 'cluster' in updates:
raise exception.ObjectActionError(action='create',
reason=_('cluster assigned'))
db_snapshot = db.snapshot_create(self._context, updates)
self._from_db_object(self._context, self, db_snapshot)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'volume' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volume changed'))
db.volume_attachment_update(self._context, self.id, updates)
self.obj_reset_changes()
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already created'))
updates = self.cinder_obj_get_changes()
if 'consistencygroup' in updates:
raise exception.ObjectActionError(
action='create', reason=_('consistencygroup assigned'))
if 'glance_metadata' in updates:
raise exception.ObjectActionError(
action='create', reason=_('glance_metadata assigned'))
if 'snapshots' in updates:
raise exception.ObjectActionError(action='create',
reason=_('snapshots assigned'))
db_volume = db.volume_create(self._context, updates)
self._from_db_object(self._context, self, db_volume)
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
for field in self.OPTIONAL_FIELDS:
if field in updates:
raise exception.ObjectActionError(
action='save', reason=_('%s changed') % field)
db.cluster_update(self._context, self.id, updates)
self.obj_reset_changes()
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
self.obj_reset_changes(fields=[attrname])
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'volume' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volume changed'))
if 'cgsnapshot' in updates:
raise exception.ObjectActionError(
action='save', reason=_('cgsnapshot changed'))
if 'metadata' in updates:
# Metadata items that are not specified in the
# self.metadata will be deleted
metadata = updates.pop('metadata', None)
self.metadata = db.snapshot_metadata_update(
self._context, self.id, metadata, True)
db.snapshot_update(self._context, self.id, updates)
self.obj_reset_changes()
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'volume_types':
self.volume_types = objects.VolumeTypeList.get_all_types_for_qos(
self._context, self.id)
def create(self, group_snapshot_id=None, source_group_id=None):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already_created'))
updates = self.cinder_obj_get_changes()
if 'volume_types' in updates:
raise exception.ObjectActionError(
action='create', reason=_('volume_types assigned'))
if 'volumes' in updates:
raise exception.ObjectActionError(action='create',
reason=_('volumes assigned'))
if 'group_snapshots' in updates:
raise exception.ObjectActionError(
action='create', reason=_('group_snapshots assigned'))
db_groups = db.group_create(self._context, updates, group_snapshot_id,
source_group_id)
self._from_db_object(self._context, self, db_groups)
def obj_set_defaults(self, *attrs):
if not attrs:
attrs = [
name for name, field in self.fields.items()
if field.default != fields.UnspecifiedDefault
]
for attr in attrs:
default = self.fields[attr].default
if default is fields.UnspecifiedDefault:
raise exception.ObjectActionError(
action='set_defaults',
reason='No default set for field %s' % attr)
setattr(self, attr, default)
def create(self, cg_snap_id=None, cg_id=None):
"""Create a consistency group.
If cg_snap_id or cg_id are specified then volume_type_id,
availability_zone, and host will be taken from the source Consistency
Group.
"""
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason=_('already_created'))
updates = self.cinder_obj_get_changes()
if 'cgsnapshots' in updates:
raise exception.ObjectActionError(action='create',
reason=_('cgsnapshots assigned'))
if 'volumes' in updates:
raise exception.ObjectActionError(action='create',
reason=_('volumes assigned'))
db_consistencygroups = db.consistencygroup_create(
self._context, updates, cg_snap_id, cg_id)
self._from_db_object(self._context, self, db_consistencygroups)
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'group':
self.group = objects.Group.get_by_id(self._context, self.group_id)
if attrname == 'snapshots':
self.snapshots = objects.SnapshotList.get_all_for_group_snapshot(
self._context, self.id)
self.obj_reset_changes(fields=[attrname])
def obj_load_attr(self, attrname):
if attrname not in OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'cgsnapshots':
self.cgsnapshots = objects.CGSnapshotList.get_all_by_group(
self._context, self.id)
if attrname == 'volumes':
self.volumes = objects.VolumeList.get_all_by_group(self._context,
self.id)
self.obj_reset_changes(fields=[attrname])
def create(self):
if self.obj_attr_is_set('id'):
raise exception.ObjectActionError(action='create',
reason='already created')
updates = self.cinder_obj_get_changes()
try:
create_ret = db.qos_specs_create(self._context, updates)
except db_exc.DBDataError:
msg = _('Error writing field to database')
LOG.exception(msg)
raise exception.Invalid(msg)
except db_exc.DBError:
LOG.exception('DB error occurred when creating QoS specs.')
raise exception.QoSSpecsCreateFailed(name=self.name,
qos_specs=self.specs)
# Save ID with the object
updates['id'] = create_ret['id']
self._from_db_object(self._context, self, updates)
def obj_load_attr(self, attrname):
"""Lazy load services attribute."""
# NOTE(geguileo): We only allow lazy loading services to raise
# awareness of the high cost of lazy loading num_hosts and
# num_down_hosts, so if we are going to need this information we should
# be certain we really need it and it should loaded when retrieving the
# data from the DB the first time we read the OVO.
if attrname != 'services':
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
self.services = objects.ServiceList.get_all(
self._context, {'cluster_name': self.name})
self.obj_reset_changes(fields=('services',))
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
# NOTE(geguileo): We only have 1 optional field, so we don't need to
# confirm that we are loading the cluster.
# If this service doesn't belong to a cluster (cluster_name is empty),
# then cluster field will be None.
if self.cluster_name:
self.cluster = objects.Cluster.get_by_id(self._context, None,
name=self.cluster_name)
else:
self.cluster = None
self.obj_reset_changes(fields=(attrname,))
def obj_make_compatible(self, primitive, target_version):
"""Make an object representation compatible with a target version.
This is responsible for taking the primitive representation of
an object and making it suitable for the given target_version.
This may mean converting the format of object attributes, removing
attributes that have been added since the target version, etc. In
general:
- If a new version of an object adds a field, this routine
should remove it for older versions.
- If a new version changed or restricted the format of a field, this
should convert it back to something a client knowing only of the
older version will tolerate.
- If an object that this object depends on is bumped, then this
object should also take a version bump. Then, this routine should
backlevel the dependent object (by calling its obj_make_compatible())
if the requested version of this object is older than the version
where the new dependent object was added.
:param:primitive: The result of self.obj_to_primitive()
:param:target_version: The version string requested by the recipient
of the object
:raises: cinder.exception.UnsupportedObjectError if conversion
is not possible for some reason
"""
for key, field in self.fields.items():
if not isinstance(field,
(fields.ObjectField, fields.ListOfObjectsField)):
continue
if not self.obj_attr_is_set(key):
continue
if key not in self.obj_relationships:
# NOTE(danms): This is really a coding error and shouldn't
# happen unless we miss something
raise exception.ObjectActionError(action='obj_make_compatible',
reason='No rule for %s' %
key)
self._obj_make_obj_compatible(primitive, target_version, key)
def obj_load_attr(self, attrname):
if attrname not in self.OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'metadata':
self.metadata = db.volume_metadata_get(self._context, self.id)
elif attrname == 'admin_metadata':
self.admin_metadata = {}
if self._context.is_admin:
self.admin_metadata = db.volume_admin_metadata_get(
self._context, self.id)
elif attrname == 'glance_metadata':
self.glance_metadata = db.volume_glance_metadata_get(
self._context, self.id)
elif attrname == 'volume_type':
# If the volume doesn't have volume_type, VolumeType.get_by_id
# would trigger a db call which raise VolumeTypeNotFound exception.
self.volume_type = (objects.VolumeType.get_by_id(
self._context, self.volume_type_id)
if self.volume_type_id else None)
elif attrname == 'volume_attachment':
attachments = objects.VolumeAttachmentList.get_all_by_volume_id(
self._context, self.id)
self.volume_attachment = attachments
elif attrname == 'consistencygroup':
consistencygroup = objects.ConsistencyGroup.get_by_id(
self._context, self.consistencygroup_id)
self.consistencygroup = consistencygroup
elif attrname == 'snapshots':
self.snapshots = objects.SnapshotList.get_all_for_volume(
self._context, self.id)
self.obj_reset_changes(fields=[attrname])
def obj_load_attr(self, attrname):
if attrname not in OPTIONAL_FIELDS:
raise exception.ObjectActionError(
action='obj_load_attr',
reason=_('attribute %s not lazy-loadable') % attrname)
if not self._context:
raise exception.OrphanedObjectError(method='obj_load_attr',
objtype=self.obj_name())
if attrname == 'metadata':
self.metadata = db.volume_metadata_get(self._context, self.id)
elif attrname == 'admin_metadata':
with self.obj_as_admin():
self.admin_metadata = db.volume_admin_metadata_get(
self._context, self.id)
elif attrname == 'volume_type':
self.volume_type = objects.VolumeType.get_by_id(
self._context, self.volume_type_id)
elif attrname == 'volume_attachment':
attachments = (objects.VolumeAttachmentList.get_all_by_volume_id(
self._context, self.id))
self.volume_attachment = attachments.objects
self.obj_reset_changes(fields=[attrname])
