/*
* Copyright (c) [2016] [ <ether.camp> ]
* This file is part of the ethereumJ library.
*
* The ethereumJ library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ethereumJ library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the ethereumJ library. If not, see <http://www.gnu.org/licenses/>.
*/
package org.ethereum.core;
import org.ethereum.util.ByteUtil;
import org.ethereum.util.RLP;
import org.ethereum.util.RLPList;
import org.spongycastle.util.encoders.Hex;
import java.math.BigInteger;
import java.util.Arrays;
import static org.ethereum.util.ByteUtil.byteArrayToLong;
/**
* Block identifier holds block hash and number <br>
* This tuple is used in some places of the core,
* like by {@link org.ethereum.net.eth.message.EthMessageCodes#NEW_BLOCK_HASHES} message wrapper
*
* @author Mikhail Kalinin
* @since 04.09.2015
*/
public class BlockIdentifier {
/**
* Block hash
*/
private byte[] hash;
/**
* Block number
*/
private long number;
public BlockIdentifier(RLPList rlp) {
this.hash = rlp.get(0).getRLPData();
this.number = byteArrayToLong(rlp.get(1).getRLPData());
}
public BlockIdentifier(byte[] hash, long number) {
this.hash = hash;
this.number = number;
}
public byte[] getHash() {
return hash;
}
public long getNumber() {
return number;
}
public byte[] getEncoded() {
byte[] hash = RLP.encodeElement(this.hash);
byte[] number = RLP.encodeBigInteger(BigInteger.valueOf(this.number));
return RLP.encodeList(hash, number);
}
@Override
public String toString() {
return "BlockIdentifier {" +
"hash=" + Hex.toHexString(hash) +
", number=" + number +
'}';
}
}