merged trunk

1 files changed, 16 insertions, 4 deletions

diff --git a/nova/wsgi.py b/nova/wsgi.py
index da9374542..b91d91121 100644
--- a/nova/wsgi.py
+++ b/nova/wsgi.py
@@ -230,6 +230,15 @@ class Controller(object):
         serializer = Serializer(request.environ, _metadata)
         return serializer.to_content_type(data)
 
+    def _deserialize(self, data, request):
+        """
+        Deserialize the request body to the response type requested in request.
+        Uses self._serialization_metadata if it exists, which is a dict mapping
+        MIME types to information needed to serialize to that type.
+        """
+        _metadata = getattr(type(self), "_serialization_metadata", {})
+        serializer = Serializer(request.environ, _metadata)
+        return serializer.deserialize(data)
 
 class Serializer(object):
     """
@@ -272,10 +281,13 @@ class Serializer(object):
         The string must be in the format of a supported MIME type.
         """
         datastring = datastring.strip()
-        is_xml = (datastring[0] == '<')
-        if not is_xml:
-            return json.loads(datastring)
-        return self._from_xml(datastring)
+        try:
+            is_xml = (datastring[0] == '<')
+            if not is_xml:
+                return json.loads(datastring)
+            return self._from_xml(datastring)
+        except:
+            return None
 
     def _from_xml(self, datastring):
         xmldata = self.metadata.get('application/xml', {})