Method bytesFromValue

java/lib/src/main/java/io/github/ccxt/Exchange.java:2639–2652

(Object value)

    }

    private static byte[] bytesFromValue(Object value) {
        if (value instanceof byte[]) return (byte[]) value;
        if (value instanceof String) {
            String s = (String) value;
            if (s.startsWith("0x") || s.startsWith("0X")) s = s.substring(2);
            if (s.length() % 2 != 0) s = "0" + s;
            byte[] out = new byte[s.length() / 2];
            for (int i = 0; i < out.length; i++) {
                out[i] = (byte) Integer.parseInt(s.substring(i * 2, i * 2 + 2), 16);
            }
            return out;
        }
        throw new RuntimeException("Cannot interpret value as bytes: " + (value == null ? "null" : value.getClass()));
    }

    private static byte[] keccak256(byte[] input) {
        org.bouncycastle.jcajce.provider.digest.Keccak.Digest256 k = new org.bouncycastle.jcajce.provider.digest.Keccak.Digest256();