/*
* 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.net.eth.message;
import org.ethereum.core.Block;
import org.ethereum.util.RLP;
import org.ethereum.util.RLPList;
import org.spongycastle.util.encoders.Hex;
import java.math.BigInteger;
/**
* Wrapper around an Ethereum Blocks message on the network
*
* @see EthMessageCodes#NEW_BLOCK
*/
public class NewBlockMessage extends EthMessage {
private Block block;
private byte[] difficulty;
public NewBlockMessage(byte[] encoded) {
super(encoded);
}
public NewBlockMessage(Block block, byte[] difficulty) {
this.block = block;
this.difficulty = difficulty;
this.parsed = true;
encode();
}
private void encode() {
byte[] block = this.block.getEncoded();
byte[] diff = RLP.encodeElement(this.difficulty);
this.encoded = RLP.encodeList(block, diff);
}
private synchronized void parse() {
if (parsed) return;
RLPList paramsList = (RLPList) RLP.decode2(encoded).get(0);
RLPList blockRLP = ((RLPList) paramsList.get(0));
block = new Block(blockRLP.getRLPData());
difficulty = paramsList.get(1).getRLPData();
parsed = true;
}
public Block getBlock() {
parse();
return block;
}
public byte[] getDifficulty() {
parse();
return difficulty;
}
public BigInteger getDifficultyAsBigInt() {
return new BigInteger(1, difficulty);
}
@Override
public byte[] getEncoded() {
return encoded;
}
@Override
public EthMessageCodes getCommand() {
return EthMessageCodes.NEW_BLOCK;
}
@Override
public Class<?> getAnswerMessage() {
return null;
}
public String toString() {
parse();
String hash = this.getBlock().getShortHash();
long number = this.getBlock().getNumber();
return "NEW_BLOCK [ number: " + number + " hash:" + hash + " difficulty: " + Hex.toHexString(difficulty) + " ]";
}
}