How to use

getNextStreamID

method

in

org.jivesoftware.smackx.filetransfer.FileTransferNegotiator

/**
 * Creates an OutgoingFileTransfer to send a file to another user.
 *
 * @param userID
 *            The fully qualified jabber ID (i.e. full JID) with resource of the user to
 *            send the file to.
 * @return The send file object on which the negotiated transfer can be run.
 * @exception IllegalArgumentException if userID is null or not a full JID
 */
public OutgoingFileTransfer createOutgoingFileTransfer(EntityFullJid userID) {
  // We need to create outgoing file transfers with a full JID since this method will later
  // use XEP-0095 to negotiate the stream. This is done with IQ stanzas that need to be addressed to a full JID
  // in order to reach an client entity.
  if (userID == null) {
    throw new IllegalArgumentException("userID was null");
  }
  return new OutgoingFileTransfer(connection().getUser(), userID,
      FileTransferNegotiator.getNextStreamID(),
      fileTransferNegotiator);
}

  /**
   * Creates an OutgoingFileTransfer to send a file to another user.
   * 
   * @param userID
   *            The fully qualified jabber ID with resource of the user to
   *            send the file to.
   * @return The send file object on which the negotiated transfer can be run.
   */
  public OutgoingFileTransfer createOutgoingFileTransfer(String userID) {
//        Why is this only accepting fully qualified JID?
//        if (userID == null || StringUtils.parseName(userID).length() <= 0
//                || StringUtils.parseServer(userID).length() <= 0
//                || StringUtils.parseResource(userID).length() <= 0) {
//            throw new IllegalArgumentException(
//                    "The provided user id was not fully qualified");
//        }

    return new OutgoingFileTransfer(connection.getUser(), userID,
        fileTransferNegotiator.getNextStreamID(),
        fileTransferNegotiator);
  }

  /**
   * Creates an OutgoingFileTransfer to send a file to another user.
   * 
   * @param userID
   *            The fully qualified jabber ID with resource of the user to
   *            send the file to.
   * @return The send file object on which the negotiated transfer can be run.
   */
  public OutgoingFileTransfer createOutgoingFileTransfer(String userID) {
//        Why is this only accepting fully qualified JID?
//        if (userID == null || StringUtils.parseName(userID).length() <= 0
//                || StringUtils.parseServer(userID).length() <= 0
//                || StringUtils.parseResource(userID).length() <= 0) {
//            throw new IllegalArgumentException(
//                    "The provided user id was not fully qualified");
//        }

    return new OutgoingFileTransfer(connection.getUser(), userID,
        fileTransferNegotiator.getNextStreamID(),
        fileTransferNegotiator);
  }
 

  /**
   * Creates an OutgoingFileTransfer to send a file to another user.
   * 
   * @param userID
   *            The fully qualified jabber ID with resource of the user to
   *            send the file to.
   * @return The send file object on which the negotiated transfer can be run.
   */
  public OutgoingFileTransfer createOutgoingFileTransfer(String userID) {
//        Why is this only accepting fully qualified JID?
//        if (userID == null || StringUtils.parseName(userID).length() <= 0
//                || StringUtils.parseServer(userID).length() <= 0
//                || StringUtils.parseResource(userID).length() <= 0) {
//            throw new IllegalArgumentException(
//                    "The provided user id was not fully qualified");
//        }

    return new OutgoingFileTransfer(connection.getUser(), userID,
        fileTransferNegotiator.getNextStreamID(),
        fileTransferNegotiator);
  }
 

/**
 * Creates an OutgoingFileTransfer to send a file to another user.
 * 
 * @param userID
 *            The fully qualified jabber ID with resource of the user to
 *            send the file to.
 * @return The send file object on which the negotiated transfer can be run.
 */
public OutgoingFileTransfer createOutgoingFileTransfer(String userID) {
  if (userID == null || StringUtils.parseName(userID).length() <= 0
      || StringUtils.parseServer(userID).length() <= 0
      || StringUtils.parseResource(userID).length() <= 0) {
    throw new IllegalArgumentException(
        "The provided user id was not fully qualified");
  }
  return new OutgoingFileTransfer(connection.getUser(), userID,
      fileTransferNegotiator.getNextStreamID(),
      fileTransferNegotiator);
}