alcaeus / mongo-php-adapter

        return $fileDocument['_id'];

    }

    private function insertChunksFromFile($file, $fileInfo)

    {

        $length = $fileInfo['length'];

        $chunkSize = $fileInfo['chunkSize'];

        $fileId = $fileInfo['_id'];

        $offset = 0;

        $i = 0;

        while ($offset < $length) {

            $data = fread($file, $chunkSize);

            $this->insertChunk($fileId, $data, $i++);

            $offset += $chunkSize;

        }

    }

    private function calculateMD5($file, $length)

    {

        return $metadata;

    }

    private function insertChunksFromBytes($bytes, $fileInfo)

    {

        $length = $fileInfo['length'];

        $chunkSize = $fileInfo['chunkSize'];

        $fileId = $fileInfo['_id'];

        $offset = 0;

        $i = 0;

        while ($offset < $length) {

            $data = mb_substr($bytes, $offset, $chunkSize, '8bit');

            $this->insertChunk($fileId, $data, $i++);

            $offset += $chunkSize;

        }

    }

    private function insertChunk($id, $data, $chunkNumber)

    {