Package org.johnnei.javatorrent.bittorrent.protocol

Class BitTorrent

  • public final class BitTorrent
extends Object

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static Charset DEFAULT_ENCODING  
      static int MESSAGE_BITFIELD
      Used as a quick-have message.
      Only allowed just after an handshake
      Each bit represents the have state of a piece: 1 - have, 0 - not have.
      Payload:
      x times: ubyte - Bitfield data
      (x will be Math.ceil(pieceCount / 8);)
      The last byte will be padded with zero's so the message will be exactly x bytes
      static int MESSAGE_CANCEL
      Cancel a send piece request
      payload:
      uint index
      uint offset
      uint length
      static int MESSAGE_CHOKE
      Used to notify the peer that we choked them
      No payload
      static int MESSAGE_HAVE
      Notify the peer that we have a piece
      Payload:
      1x: (u)int - Piece Index
      static int MESSAGE_INTERESTED
      Used to notify the peer that we got interest in them
      No payload
      static int MESSAGE_PIECE
      The data of a piece
      Payload:
      uint index - Piece Index
      uint offset - Offset within the piece
      x ubyte - The data, the length is equal the rest of the message bytes
      static int MESSAGE_PORT
      This has something to do with DHT
      payload:
      listen-port

      This is not yet implemented in this client
      static int MESSAGE_REQUEST
      Request a piece part from the peer
      Payload:
      uint index - Piece index
      uint offset - Offset within the piece
      uint length - The amount of data (Commenly 2^14/2^15), I use 2^14
      static int MESSAGE_UNCHOKE
      Used to notify the peer that we unchoked them
      No payload
      static int MESSAGE_UNINTERESTED
      Used to notify the peer that we got no interest in them
      No payload

    • Field Detail

      • DEFAULT_ENCODING

        public static final Charset DEFAULT_ENCODING

      • MESSAGE_CHOKE

        public static final int MESSAGE_CHOKE
        Used to notify the peer that we choked them
        No payload
        See Also:
        Constant Field Values

      • MESSAGE_UNCHOKE

        public static final int MESSAGE_UNCHOKE
        Used to notify the peer that we unchoked them
        No payload
        See Also:
        Constant Field Values

      • MESSAGE_INTERESTED

        public static final int MESSAGE_INTERESTED
        Used to notify the peer that we got interest in them
        No payload
        See Also:
        Constant Field Values

      • MESSAGE_UNINTERESTED

        public static final int MESSAGE_UNINTERESTED
        Used to notify the peer that we got no interest in them
        No payload
        See Also:
        Constant Field Values

      • MESSAGE_HAVE

        public static final int MESSAGE_HAVE
        Notify the peer that we have a piece
        Payload:
        1x: (u)int - Piece Index
        See Also:
        Constant Field Values

      • MESSAGE_BITFIELD

        public static final int MESSAGE_BITFIELD
        Used as a quick-have message.
        Only allowed just after an handshake
        Each bit represents the have state of a piece: 1 - have, 0 - not have.
        Payload:
        x times: ubyte - Bitfield data
        (x will be Math.ceil(pieceCount / 8);)
        The last byte will be padded with zero's so the message will be exactly x bytes
        See Also:
        Constant Field Values

      • MESSAGE_REQUEST

        public static final int MESSAGE_REQUEST
        Request a piece part from the peer
        Payload:
        uint index - Piece index
        uint offset - Offset within the piece
        uint length - The amount of data (Commenly 2^14/2^15), I use 2^14
        See Also:
        Constant Field Values

      • MESSAGE_PIECE

        public static final int MESSAGE_PIECE
        The data of a piece
        Payload:
        uint index - Piece Index
        uint offset - Offset within the piece
        x ubyte - The data, the length is equal the rest of the message bytes
        See Also:
        Constant Field Values

      • MESSAGE_CANCEL

        public static final int MESSAGE_CANCEL
        Cancel a send piece request
        payload:
        uint index
        uint offset
        uint length

        See Also:
        Constant Field Values

      • MESSAGE_PORT

        public static final int MESSAGE_PORT
        This has something to do with DHT
        payload:
        listen-port

        This is not yet implemented in this client
        See Also:
        Constant Field Values