Log Content-Type/Accept API request info

Also remove an unused content type mapping dictionary.

Change-Id: I5af1357b614b50af4a842151b8c0d652a84e7ec6

nova/api/openstack/wsgi.py

@@ -40,14 +40,6 @@
 
 LOG = logging.getLogger(__name__)
 
-# The vendor content types should serialize identically to the non-vendor
-# content types. So to avoid littering the code with both options, we
-# map the vendor to the other when looking up the type
-_CONTENT_TYPE_MAP = {
-    'application/vnd.openstack.compute+json': 'application/json',
-    'application/vnd.openstack.compute+xml': 'application/xml',
-}
-
 SUPPORTED_CONTENT_TYPES = (
     'application/json',
     'application/vnd.openstack.compute+json',
@@ -946,7 +938,11 @@ def _process_stack(self, request, action, action_args,
                     "%(body)s") % {'action': action,
                                    'body': unicode(body, 'utf-8')}
             LOG.debug(logging.mask_password(msg))
-        LOG.debug(_("Calling method %s") % str(meth))
+        LOG.debug(_("Calling method '%(meth)s' (Content-type='%(ctype)s', "
+                    "Accept='%(accept)s')"),
+                  {'meth': str(meth),
+                   'ctype': content_type,
+                   'accept': accept})
 
         # Now, deserialize the request body...
         try: