+ public function writeToFile (string $dataStream) {
+ // Validate parameter
+ /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->debugOutput(sprintf('TEXT-FILE-OUTPUT-POINTER: dataStream=%s - CALLED!', $dataStream));
+ if (empty($dataStream)) {
+ // Invalid parameter
+ throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+ } elseif (is_null($this->getFileObject())) {