package org.asamk.signal;

public class Hex {

    private final static char[] HEX_DIGITS = {
            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
    };

    public static String toStringCondensed(byte[] bytes) {
        StringBuffer buf = new StringBuffer();
        for (int i = 0; i < bytes.length; i++) {
            appendHexChar(buf, bytes[i]);
        }
        return buf.toString();
    }

    private static void appendHexChar(StringBuffer buf, int b) {
        buf.append(HEX_DIGITS[(b >> 4) & 0xf]);
        buf.append(HEX_DIGITS[b & 0xf]);
        buf.append(" ");
    }
}