Method getSerialNo

oshi-core/src/main/java/oshi/util/EdidUtil.java:86–93

Gets the Serial number, bytes 12-15 @param edid The EDID byte array @return If all 4 bytes represent alphanumeric characters, a 4-character string, otherwise a hex string.

(byte[] edid)

     *         string, otherwise a hex string.
     */
    public static String getSerialNo(byte[] edid) {
        // Bytes 12-15 are Serial number (last 4 characters)
        if (LOG.isDebugEnabled()) {
            LOG.debug("Serial number: {}", Arrays.toString(Arrays.copyOfRange(edid, 12, 16)));
        }
        return String.format("%s%s%s%s", getAlphaNumericOrHex(edid[15]), getAlphaNumericOrHex(edid[14]),
                getAlphaNumericOrHex(edid[13]), getAlphaNumericOrHex(edid[12]));
    }

    private static String getAlphaNumericOrHex(byte b) {
        return Character.isLetterOrDigit((char) b) ? String.format("%s", (char) b) : String.format("%02X", b);