Android Open Source - bitcoin-wallet Headers Packet

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License

The source code is released under:

Copyright (C) 2011 by Caleb Anderson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the ...

Java Source Code

package net.dirtyfilthy.bitcoin.protocol;
/*  w w w . ja  va 2  s .  c om*/
import java.io.DataInputStream;
import java.io.IOException;
import java.util.Vector;

import net.dirtyfilthy.bitcoin.core.Block;

public class HeadersPacket extends Packet {
  
  Vector<Block> headers=new Vector<Block>();
  
  public HeadersPacket(long ver) {
    super(ver, "headers");
  }
  
  public HeadersPacket() {
    super();
    setCommand("headers");
  }
  
  public byte[] create(){
    writeUnsignedVarInt(headers.size());
    for(Block b : headers){
      dataBuffer.put(b.toByteArray());
    }
    return toByteArray();
  }
  
  public void readData(DataInputStream in) throws IOException{
    headers.clear();
    int items=(int) readUnsignedVarInt(in);
    System.out.println("header items :"+items);
    for(int i=0;i<items;i++){
      
      // SER_BLOCKHEADERONLY is defined in original but only used for disk access
      // we need to get the (always zero) txCount so we pass in includeTransactions=true
      
      headers.add(new Block(in,true));
    }
  }
  
  public Vector<Block> headers(){
    return this.headers;
  }


}

Java Source Code List

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