From dd72dbbc85e97e283d331083cf4ae43582bca4f6 Mon Sep 17 00:00:00 2001
From: Josh Kearney <josh@jk0.org>
Date: Fri, 24 Jun 2011 15:03:01 -0500
Subject: [PATCH] Refactored backup rotate.

---
 nova/exception.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nova/exception.py b/nova/exception.py
index a548a638c..f3893d239 100644
--- a/nova/exception.py
+++ b/nova/exception.py
@@ -553,6 +553,10 @@ class ImageRotationNotAllowed(NovaException):
     message = _("Rotation is not allowed for snapshots")
 
 
+class RotationRequiredForBackup(NovaException):
+    message = _("Rotation param is required for backup image_type")
+
+
 #TODO(bcwaldon): EOL this exception!
 class Duplicate(NovaException):
     pass