delete sample class inserted by mistake
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romanman
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import edu.emory.mathcs.backport.java.util.Arrays;
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import org.ethereum.facade.Ethereum;
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import org.ethereum.facade.EthereumImpl;
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import org.ethereum.net.message.MessageFactory;
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import org.ethereum.net.p2p.P2pHandler;
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import org.ethereum.util.RLP;
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import org.spongycastle.util.encoders.Hex;
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/**
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*
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* @author: Roman Mandeleil
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* Created on: 14/10/2014 14:39
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*/
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public class Main {
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public static void main(String[] args) {
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Ethereum eth = new EthereumImpl();
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eth.connect("localhost", 30303);
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// new P2pHandler().adaptMessageIds( Arrays.asList(new String[]{"eth", "shh"}) );
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// byte[] encoded = Hex.decode("c111");
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// MessageFactory.createMessage(encoded);
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}
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}
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package org.ethereum.net.message;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* A list of commands for the Ethereum network protocol.
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* <br/>
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* The codes for these commands are the first byte in every packet.
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*
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* @see <a href="https://github.com/ethereum/wiki/wiki/Wire-Protocol">
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* https://github.com/ethereum/wiki/wiki/Wire-Protocol</a>
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*/
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public enum Command {
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/* P2P */
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/** [0x00, P2P_VERSION, CLIEND_ID, CAPS, LISTEN_PORT, CLIENT_ID] <br/>
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* First packet sent over the connection, and sent once by both sides.
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* No other messages may be sent until a Hello is received. */
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HELLO(0x00),
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/** [0x01, REASON] <br/>Inform the peer that a disconnection is imminent;
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* if received, a peer should disconnect immediately. When sending,
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* well-behaved hosts give their peers a fighting chance (read: wait 2 seconds)
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* to disconnect to before disconnecting themselves. */
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DISCONNECT(0x01),
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/** [0x02] <br/>Requests an immediate reply of Pong from the peer. */
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PING(0x02),
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/** [0x03] <br/>Reply to peer's Ping packet. */
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PONG(0x03),
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/** [0x04] <br/>Request the peer to enumerate some known peers
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* for us to connect to. This should include the peer itself. */
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GET_PEERS(0x04),
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/** [0x05, [IP1, Port1, Id1], [IP2, Port2, Id2], ... ] <br/>
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* Specifies a number of known peers. IP is a 4-byte array 'ABCD'
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* that should be interpreted as the IP address A.B.C.D.
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* Port is a 2-byte array that should be interpreted as a
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* 16-bit big-endian integer. Id is the 512-bit hash that acts
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* as the unique identifier of the node. */
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PEERS(0x05),
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/** [0x10, [PROTOCOL_VERSION, NETWORK_ID, TD, BEST_HASH, GENESIS_HASH] <br/>
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* Inform a peer of it's current ethereum state. This message should be
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* send after the initial handshake and prior to any ethereum related messages. */
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STATUS(0x10),
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/* Ethereum */
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/** [0x11] * Request the peer to send all transactions
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* currently in the queue. */
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GET_TRANSACTIONS(0x11),
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/** [0x12, [nonce, receiving_address, value, ... ], ... ] <br/>
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* Specify (a) transaction(s) that the peer should make sure is included
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* on its transaction queue. The items in the list (following the first item 0x12)
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* are transactions in the format described in the main Ethereum specification. */
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TRANSACTIONS(0x12),
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/** [0x13, [ hash : B_32, maxBlocks: P ]: <br/>
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* Requests a BlockHashes message of at most maxBlocks entries,
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* of block hashes from the blockchain, starting at the parent of block hash.
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* Does not require the peer to give maxBlocks hashes -
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* they could give somewhat fewer. */
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GET_BLOCK_HASHES(0x13),
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/** [0x14, [ hash_0: B_32, hash_1: B_32, .... ]: <br/>Gives a series of hashes
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* of blocks (each the child of the next). This implies that the blocks
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* are ordered from youngest to oldest. */
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BLOCK_HASHES(0x14),
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/** [0x15, [ hash_0: B_32, hash_1: B_32, .... ]: <br/>Requests a Blocks message
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* detailing a number of blocks to be sent, each referred to by a hash. <br/>
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* <b>Note:</b> Don't expect that the peer necessarily give you all these blocks
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* in a single message - you might have to re-request them. */
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GET_BLOCKS(0x15),
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/** [0x16, [block_header, transaction_list, uncle_list], ... ] <br/>
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* Specify (a) block(s) that the peer should know about.
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* The items in the list (following the first item, 0x13)
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* are blocks in the format described in the main Ethereum specification. */
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BLOCKS(0x16),
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UNKNOWN(0xFF);
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private int cmd;
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private static final Map<Integer, Command> intToTypeMap = new HashMap<>();
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static {
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for (Command type : Command.values()) {
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intToTypeMap.put(type.cmd, type);
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}
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}
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private Command(int cmd) {
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this.cmd = cmd;
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}
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public static Command fromInt(int i) {
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Command type = intToTypeMap.get(Integer.valueOf(i));
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if (type == null)
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return Command.UNKNOWN;
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return type;
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}
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public byte asByte() {
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return (byte) cmd;
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}
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}
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