Handle login exception.

This is a first implementation that needs more elaborate error msg.

redfish/exception.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
-
+import sys
+import config
 
 class RedfishException(Exception):
     """Base class for redfish exceptions"""
@@ -8,9 +9,13 @@ class RedfishException(Exception):
         self.message = message
 
 
-
 class AuthenticationFailureException(RedfishException):
-    pass
+    def __init__(self, message=None, **kwargs):
-
+        super(AuthenticationFailureException, self).__init__(message=None, **kwargs)
+        config.logger.error(message)
+        # TODO
+        # Give a bit more details about the failure (check login etc...) 
+        sys.exit(1)
+        
 class LogoutFailureException(RedfishException):
-    pass
+    pass

redfish/main.py

@@ -313,7 +313,7 @@ class RedfishConnection(object):
         # TODO : Manage exception with a class.
         # =======================================================================
         if auth.status_code != 201:
-            pass
+            raise exception.AuthenticationFailureException("Login request return an invalid status code")
             #sysraise "Error getting token", auth.status_code
 
         self.connection_parameters.auth_token = auth.headers.get("x-auth-token")