private function renameSplitFiles()
    {
        $c = 1;
        $wholeFile = new File($this->getArchivePath());

        foreach ($this->getSplitFiles() as $file/* @var $file SplFileInfo */) {
            $new_filename = sprintf("%s/%spart%s.%s",
                $wholeFile->getPath(),
                basename($wholeFile->getFilename(), $wholeFile->getExtension()),
                $c++,
                $wholeFile->getExtension()
            );

            rename($file->getRealPath(), $new_filename);
        }
    }