Log translation hint for nova.api

Currently, Log translation is motivated by oslo's move to prioritized
translation of strings, as documented at
https://wiki.openstack.org/wiki/LoggingStandards#Log_Translation

- add log translation hints for warning, error and info levels
- move from LOG.warning to LOG.warn
- remove use of % as a string formatter, use the log functionality
  instead

Change-Id: I128da6cbb2be1b5b51b4a79fb38b3bf8206431d9

1 files changed, 4 insertions, 3 deletions

diff --git a/nova/api/auth.py b/nova/api/auth.py
index c2efb97033..710281a00d 100644
--- a/nova/api/auth.py
+++ b/nova/api/auth.py
@@ -22,6 +22,7 @@ import webob.exc
 
 from nova import context
 from nova.i18n import _
+from nova.i18n import _LW
 from nova.openstack.common import jsonutils
 from nova.openstack.common import log as logging
 from nova.openstack.common.middleware import request_id
@@ -69,7 +70,7 @@ def pipeline_factory(loader, global_conf, **local_conf):
     # If the configuration file still contains 'ratelimit_v3', just ignore it.
     # We will remove this code at next release (J)
     if 'ratelimit_v3' in pipeline:
-        LOG.warn(_('ratelimit_v3 is removed from v3 api.'))
+        LOG.warn(_LW('ratelimit_v3 is removed from v3 api.'))
         pipeline.remove('ratelimit_v3')
     return _load_pipeline(loader, pipeline)
 
@@ -156,6 +157,6 @@ class NovaKeystoneContext(wsgi.Middleware):
             # Fallback to deprecated role header:
             roles = req.headers.get('X_ROLE', '')
             if roles:
-                LOG.warn(_("Sourcing roles from deprecated X-Role HTTP "
-                           "header"))
+                LOG.warn(_LW("Sourcing roles from deprecated X-Role HTTP "
+                             "header"))
         return [r.strip() for r in roles.split(',')]