def update_node(self, node_id, values):
# NOTE(dtantsur): this can lead to very strange errors
if 'uuid' in values:
msg = _("Cannot overwrite UUID for an existing Node.")
raise exception.InvalidParameterValue(err=msg)
try:
return self._do_update_node(node_id, values)
except db_exc.DBDuplicateEntry:
raise exception.InstanceAssociated(
instance_uuid=values['ironic_node_id'], node=node_id)
def create_node(self, values):
# ensure defaults are present for new nodes
if not values.get('uuid'):
values['uuid'] = utils.generate_uuid()
node = models.Node()
node.update(values)
try:
node.save()
except db_exc.DBDuplicateEntry as exc:
if 'ironic_node_id' in exc.columns:
raise exception.InstanceAssociated(
instance_uuid=values['ironic_node_id'],
node=values['uuid'])
raise exception.NodeAlreadyExists(uuid=values['uuid'])
return node
def test_InstanceAssociated(self):
self.assertRaises(exception.InstanceAssociated,
lambda: self.raise_(exception.InstanceAssociated()))