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Java implementation of the Ethereum protocol adapted to use for Hedera Smart Contract Service
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/*
* Copyright (c) [2016] [ ]
* 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 .
*/
package org.ethereum.net.p2p;
import org.ethereum.net.message.ReasonCode;
import org.ethereum.util.RLP;
import org.ethereum.util.RLPList;
import static org.ethereum.net.message.ReasonCode.REQUESTED;
import static org.ethereum.net.message.ReasonCode.UNKNOWN;
import static org.ethereum.net.p2p.P2pMessageCodes.DISCONNECT;
/**
* Wrapper around an Ethereum Disconnect message on the network
*
* @see org.ethereum.net.p2p.P2pMessageCodes#DISCONNECT
*/
public class DisconnectMessage extends P2pMessage {
private ReasonCode reason;
public DisconnectMessage(byte[] encoded) {
super(encoded);
}
public DisconnectMessage(ReasonCode reason) {
this.reason = reason;
parsed = true;
}
private void parse() {
RLPList paramsList = (RLPList) RLP.decode2(encoded).get(0);
if (paramsList.size() > 0) {
byte[] reasonBytes = paramsList.get(0).getRLPData();
if (reasonBytes == null)
this.reason = UNKNOWN;
else
this.reason = ReasonCode.fromInt(reasonBytes[0]);
} else {
this.reason = UNKNOWN;
}
parsed = true;
}
private void encode() {
byte[] encodedReason = RLP.encodeByte(this.reason.asByte());
this.encoded = RLP.encodeList(encodedReason);
}
@Override
public byte[] getEncoded() {
if (encoded == null) encode();
return encoded;
}
@Override
public P2pMessageCodes getCommand() {
return P2pMessageCodes.DISCONNECT;
}
@Override
public Class getAnswerMessage() {
return null;
}
public ReasonCode getReason() {
if (!parsed) parse();
return reason;
}
public String toString() {
if (!parsed) parse();
return "[" + this.getCommand().name() + " reason=" + reason + "]";
}
}