private bool TryCreateMapping(string entityName, MdmId newMapping, MappingUpdatedEvent updatedEvent)
        {
            var response = mappingService.CreateMapping(entityName, updatedEvent.EntityId, newMapping);

            if (!response.IsValid)
            {
                this.eventAggregator.Publish(
                    new ErrorEvent(response.Fault != null ? response.Fault.Message : "Unknown Error"));
                return(false);
            }
            return(true);
        }