/*
 * Copyright 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.bitcoin.examples;

import com.google.bitcoin.core.*;
import com.google.bitcoin.store.BlockStore;
import com.google.bitcoin.store.MemoryBlockStore;

import java.net.InetAddress;
import java.util.concurrent.Future;

/**
 * Downloads the block given a block hash from the localhost node and prints it out.
 */
public class FetchBlock {
    public static void main(String[] args) throws Exception {
        System.out.println("Connecting to node");
        final NetworkParameters params = NetworkParameters.prodNet();
        NetworkConnection conn = new NetworkConnection(InetAddress.getLocalHost(), params, 0, 60000);
        BlockStore blockStore = new MemoryBlockStore(params);
        BlockChain chain = new BlockChain(params, blockStore);
        Peer peer = new Peer(params, conn, chain);
        peer.start();

        Sha256Hash blockHash = new Sha256Hash(args[0]);
        Future<Block> future = peer.getBlock(blockHash);
        System.out.println("Waiting for node to send us the requested block: " + blockHash);
        Block block = future.get();
        System.out.println(block);
        peer.disconnect();
    }
}

Add a tool that prints out an arbitrary block given its hash.
Add a tool that prints out an arbitrary block given its hash.

git-svn-id: 222f534b05ab2d99128b129c3f2ba69c893481ce@129 a743e126-8abc-4207-e589-8f9b47be99bf
