+ public function writeToFile (string $dataStream) {
+ // Validate parameter and class own attributes
+ /* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__, __LINE__)->traceMessage(sprintf('RAW-FILE-OUTPUT-POINTER: dataStream(%d)=%s (trimmed) - CALLED!', strlen($dataStream), trim($dataStream)));
+ if (empty($dataStream)) {
+ // Empty data stream
+ throw new InvalidArgumentException('Parameter "dataStream" is empty', FrameworkInterface::EXCEPTION_INVALID_ARGUMENT);
+ } elseif (is_null($this->getFileObject())) {