Android Open Source - bitcoin-wallet Packet Factory

From Project

Back to project page bitcoin-wallet.

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 ...

If you think the Android project bitcoin-wallet listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package net.dirtyfilthy.bitcoin.protocol;
/*  w  w  w.j  a  v  a  2  s .c om*/
import java.io.DataInputStream;
import java.io.IOException;

public class PacketFactory {
  
  private long version;
  private int packetType=0;

  public void setVersion(long negotiatedVersion) {
    this.version = negotiatedVersion;
  }

  public long getVersion() {
    return version;
  }
  
  PacketFactory(){
    this.version=ProtocolVersion.version();
  }
  
  PacketFactory(long version){ 
    this.version=version;
    
  }
  
  public Packet readPacket(DataInputStream in) throws IOException {
    Packet dummy,real;;
    dummy=new Packet(version);
    
    // keep reading until we have a valid header
    
    while(true){
      in.mark(Packet.HEADER_LENGTH);
      try{
        dummy.readHeader(in);
      }
      catch(MalformedPacketException e){
        in.reset();
        in.skipBytes(1);
        continue;
      }
      break;
    }
    real=this.create(dummy.packetType());
    in.reset();
    real.readExternal(in);
    return real;
  }
  
  public Packet create(PacketType type){
    Packet packet;
    switch(type) {
    case ADDR: packet=new AddressPacket(this.version); break;
    case VERSION: packet=new VersionPacket(this.version); break;
    case VERACK: packet=new VersionAckPacket(this.version); break;
    case INV: packet=new InventoryPacket(this.version); break;
    case PING: packet=new PingPacket(this.version); break;
    case REPLY: packet=new ReplyPacket(this.version); break;
    case GETDATA: packet=new GetDataPacket(this.version); break;
    case GETADDR: packet=new GetAddressPacket(this.version); break;
    case BLOCK: packet=new BlockPacket(this.version); break;
    case TX: packet=new TxPacket(this.version); break;
    case GETBLOCKS: packet=new GetBlocksPacket(this.version); break;
    case GETHEADERS: packet=new GetHeadersPacket(this.version); break;
    case HEADERS: packet=new HeadersPacket(this.version); break;
    default: throw new RuntimeException("Invalid packet type");
    }
    packet.setPacketType(packetType);
    return packet;
  }

  public void setPacketType(int packetType) {
    this.packetType = packetType;
  }

  public int getPacketType() {
    return packetType;
  }

  

}

Java Source Code List