def on_put(self, req, resp, owner, operation_name):
     try:
         #Check owner validity
         #Check operation validity
         oper = Operation(owner, operation_name)
         operation_id, status, operation_name, owner = oper.create()
     except IOError:
         raise falcon.HTTPNotFound()
     
     resp.status = falcon.HTTP_201
     resp.body = '{"operation_id":' + operation_id + ', "status":' + status.name + \
       ', "operation":' + operation_name + ', "owner":' + owner +'}'