From f81dd19d481fe96a147e8e71056a8938fc5c116d Mon Sep 17 00:00:00 2001
From: Thomas Herve <therve@redhat.com>
Date: Fri, 17 Feb 2017 13:46:14 +0100
Subject: [PATCH] Filter empty messages when creating claims in Swift

Messages can be removed while a claim is created, resulting in an empty
body returned from Swift. This ignores those messages.

Change-Id: I7f6500c743449abd4ce7adb6f361d31a6b8439f8
---
 zaqar/storage/swift/utils.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/zaqar/storage/swift/utils.py b/zaqar/storage/swift/utils.py
index 1f93ed6ef..f77c9161d 100644
--- a/zaqar/storage/swift/utils.py
+++ b/zaqar/storage/swift/utils.py
@@ -96,6 +96,8 @@ def _filter_messages(messages, filters, marker, get_object, list_objects,
             if exc.http_status == 404:
                 continue
             raise
+        if not obj:
+            continue
         obj = jsonutils.loads(obj)
         for should_skip in filters:
             if should_skip(obj, headers):