def setUp(self):
super(TestConsistencyGroupStatus, self).setUp()
self.field = fields.ConsistencyGroupStatusField()
self.coerce_good_values = [('error', 'error'),
('available', 'available'),
('creating', 'creating'),
('deleting', 'deleting'),
('deleted', 'deleted'),
('updating', 'updating'),
('error_deleting', 'error_deleting')]
self.coerce_bad_values = ['acme']
self.to_primitive_values = self.coerce_good_values[0:1]
self.from_primitive_values = self.coerce_good_values[0:1]
def setUp(self):
super(TestConsistencyGroupStatus, self).setUp()
self.field = fields.ConsistencyGroupStatusField()
self.coerce_good_values = [
('error', fields.ConsistencyGroupStatus.ERROR),
('available', fields.ConsistencyGroupStatus.AVAILABLE),
('creating', fields.ConsistencyGroupStatus.CREATING),
('deleting', fields.ConsistencyGroupStatus.DELETING),
('deleted', fields.ConsistencyGroupStatus.DELETED),
('updating', fields.ConsistencyGroupStatus.UPDATING),
('error_deleting', fields.ConsistencyGroupStatus.ERROR_DELETING)]
self.coerce_bad_values = ['acme']
self.to_primitive_values = self.coerce_good_values[0:1]
self.from_primitive_values = self.coerce_good_values[0:1]
class ConsistencyGroup(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat, base.ClusteredObject):
# Version 1.0: Initial version
# Version 1.1: Added cgsnapshots and volumes relationships
# Version 1.2: Changed 'status' field to use ConsistencyGroupStatusField
# Version 1.3: Added cluster fields
# Version 1.4: Added from_group
VERSION = '1.4'
OPTIONAL_FIELDS = ('cgsnapshots', 'volumes', 'cluster')
fields = {
'id': fields.UUIDField(),
'user_id': fields.StringField(),
'project_id': fields.StringField(),
'cluster_name': fields.StringField(nullable=True),
'cluster': fields.ObjectField('Cluster', nullable=True,
read_only=True),
'host': fields.StringField(nullable=True),
'availability_zone': fields.StringField(nullable=True),
'name': fields.StringField(nullable=True),
'description': fields.StringField(nullable=True),
'volume_type_id': fields.StringField(nullable=True),
'status': c_fields.ConsistencyGroupStatusField(nullable=True),
'cgsnapshot_id': fields.UUIDField(nullable=True),
'source_cgid': fields.UUIDField(nullable=True),
'cgsnapshots': fields.ObjectField('CGSnapshotList', nullable=True),
'volumes': fields.ObjectField('VolumeList', nullable=True),
}
def obj_make_compatible(self, primitive, target_version):
"""Make a CG representation compatible with a target version."""
# Convert all related objects
super(ConsistencyGroup,
self).obj_make_compatible(primitive, target_version)
target_version = versionutils.convert_version_to_tuple(target_version)
# Before v1.3 we didn't have cluster fields so we have to remove them.
if target_version < (1, 3):
for obj_field in ('cluster', 'cluster_name'):
primitive.pop(obj_field, None)
@classmethod
def _from_db_object(cls,
context,
consistencygroup,
db_consistencygroup,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for name, field in consistencygroup.fields.items():
if name in cls.OPTIONAL_FIELDS:
continue
value = db_consistencygroup.get(name)
setattr(consistencygroup, name, value)
if 'cgsnapshots' in expected_attrs:
cgsnapshots = base.obj_make_list(
context, objects.CGSnapshotList(context), objects.CGSnapshot,
db_consistencygroup['cgsnapshots'])
consistencygroup.cgsnapshots = cgsnapshots
if 'volumes' in expected_attrs:
volumes = base.obj_make_list(context, objects.VolumeList(context),
objects.Volume,
db_consistencygroup['volumes'])
consistencygroup.volumes = volumes
if 'cluster' in expected_attrs:
db_cluster = db_consistencygroup.get('cluster')
# If this consistency group doesn't belong to a cluster the cluster
# field in the ORM instance will have value of None.
if db_cluster:
consistencygroup.cluster = objects.Cluster(context)
objects.Cluster._from_db_object(context,
consistencygroup.cluster,
db_cluster)
else:
consistencygroup.cluster = None
consistencygroup._context = context
consistencygroup.obj_reset_changes()
return consistencygroup
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'))
if 'cluster' in updates:
raise exception.ObjectActionError(action='create',
reason=_('cluster assigned'))
db_consistencygroups = db.consistencygroup_create(
self._context, updates, cg_snap_id, cg_id)
self._from_db_object(self._context, self, db_consistencygroups)
def from_group(self, group):
"""Convert a generic volume group object to a cg object."""
self.id = group.id
self.user_id = group.user_id
self.project_id = group.project_id
self.cluster_name = group.cluster_name
self.host = group.host
self.availability_zone = group.availability_zone
self.name = group.name
self.description = group.description
self.volume_type_id = ""
for v_type in group.volume_types:
self.volume_type_id += v_type.id + ","
self.status = group.status
self.cgsnapshot_id = group.group_snapshot_id
self.source_cgid = group.source_group_id
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 == '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)
# If this consistency group doesn't belong to a cluster (cluster_name
# is empty), then cluster field will be None.
if attrname == 'cluster':
if self.cluster_name:
self.cluster = objects.Cluster.get_by_id(
self._context, name=self.cluster_name)
else:
self.cluster = None
self.obj_reset_changes(fields=[attrname])
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'cgsnapshots' in updates:
raise exception.ObjectActionError(
action='save', reason=_('cgsnapshots changed'))
if 'volumes' in updates:
raise exception.ObjectActionError(action='save',
reason=_('volumes changed'))
if 'cluster' in updates:
raise exception.ObjectActionError(action='save',
reason=_('cluster changed'))
db.consistencygroup_update(self._context, self.id, updates)
self.obj_reset_changes()
def destroy(self):
with self.obj_as_admin():
updated_values = db.consistencygroup_destroy(
self._context, self.id)
self.update(updated_values)
self.obj_reset_changes(updated_values.keys())
class ConsistencyGroup(base.CinderPersistentObject, base.CinderObject,
base.CinderObjectDictCompat):
# Version 1.0: Initial version
# Version 1.1: Added cgsnapshots and volumes relationships
# Version 1.2: Changed 'status' field to use ConsistencyGroupStatusField
VERSION = '1.2'
fields = {
'id': fields.UUIDField(),
'user_id': fields.UUIDField(),
'project_id': fields.UUIDField(),
'host': fields.StringField(nullable=True),
'availability_zone': fields.StringField(nullable=True),
'name': fields.StringField(nullable=True),
'description': fields.StringField(nullable=True),
'volume_type_id': fields.UUIDField(nullable=True),
'status': c_fields.ConsistencyGroupStatusField(nullable=True),
'cgsnapshot_id': fields.UUIDField(nullable=True),
'source_cgid': fields.UUIDField(nullable=True),
'cgsnapshots': fields.ObjectField('CGSnapshotList', nullable=True),
'volumes': fields.ObjectField('VolumeList', nullable=True),
}
@staticmethod
def _from_db_object(context, consistencygroup, db_consistencygroup,
expected_attrs=None):
if expected_attrs is None:
expected_attrs = []
for name, field in consistencygroup.fields.items():
if name in OPTIONAL_FIELDS:
continue
value = db_consistencygroup.get(name)
setattr(consistencygroup, name, value)
if 'cgsnapshots' in expected_attrs:
cgsnapshots = base.obj_make_list(
context, objects.CGSnapshotsList(context),
objects.CGSnapshot,
db_consistencygroup['cgsnapshots'])
consistencygroup.cgsnapshots = cgsnapshots
if 'volumes' in expected_attrs:
volumes = base.obj_make_list(
context, objects.VolumeList(context),
objects.Volume,
db_consistencygroup['volumes'])
consistencygroup.cgsnapshots = volumes
consistencygroup._context = context
consistencygroup.obj_reset_changes()
return consistencygroup
@base.remotable
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 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])
@base.remotable
def save(self):
updates = self.cinder_obj_get_changes()
if updates:
if 'cgsnapshots' in updates:
raise exception.ObjectActionError(
action='save', reason=_('cgsnapshots changed'))
if 'volumes' in updates:
raise exception.ObjectActionError(
action='save', reason=_('volumes changed'))
db.consistencygroup_update(self._context, self.id, updates)
self.obj_reset_changes()
@base.remotable
def destroy(self):
with self.obj_as_admin():
db.consistencygroup_destroy(self._context, self.id)
