+ else:
+ default = input.default
+ if default:
+ input.validate(default)
+ if (self.parsed_params and input.name not in self.parsed_params
+ or self.parsed_params is None) and input.required \
+ and input.default is None:
+ exception.ExceptionCollector.appendException(
+ exception.MissingRequiredParameterError(
+ what='Template',
+ input_name=input.name))
+