public static byte[] rlpEncodeList(Object... elems) {
byte[][] encodedElems = new byte[elems.length][];
for (int i = 0; i < elems.length; i++) {
if (elems[i] instanceof Byte) {
encodedElems[i] = RLP.encodeByte((Byte) elems[i]);
} else if (elems[i] instanceof Integer) {
encodedElems[i] = RLP.encodeInt((Integer) elems[i]);
} else if (elems[i] instanceof Long) {
encodedElems[i] = rlpEncodeLong((Long) elems[i]);
} else if (elems[i] instanceof String) {
encodedElems[i] = RLP.encodeString((String) elems[i]);
} else if (elems[i] instanceof byte[]) {
encodedElems[i] = ((byte[]) elems[i]);
} else {
throw new RuntimeException("Unsupported object: " + elems[i]);
}
}
return RLP.encodeList(encodedElems);
}
public byte[] getEncoded() {
if (rlpEncoded != null) return rlpEncoded;
// parse null as 0 for nonce
byte[] nonce = null;
if (this.nonce == null || this.nonce.length == 1 && this.nonce[0] == 0) {
nonce = RLP.encodeElement(null);
} else {
nonce = RLP.encodeElement(this.nonce);
}
byte[] gasPrice = RLP.encodeElement(this.gasPrice);
byte[] gasLimit = RLP.encodeElement(this.gasLimit);
byte[] receiveAddress = RLP.encodeElement(this.receiveAddress);
byte[] value = RLP.encodeElement(this.value);
byte[] data = RLP.encodeElement(this.data);
byte[] v, r, s;
if (signature != null) {
v = RLP.encodeByte(signature.v);
r = RLP.encodeElement(BigIntegers.asUnsignedByteArray(signature.r));
s = RLP.encodeElement(BigIntegers.asUnsignedByteArray(signature.s));
} else {
v = RLP.encodeElement(EMPTY_BYTE_ARRAY);
r = RLP.encodeElement(EMPTY_BYTE_ARRAY);
s = RLP.encodeElement(EMPTY_BYTE_ARRAY);
}
this.rlpEncoded =
RLP.encodeList(nonce, gasPrice, gasLimit, receiveAddress, value, data, v, r, s);
this.hash = this.getHash();
return rlpEncoded;
}