Remove someone from my roster without removimg myself from his roster, is it possible?

Smack Smack Dev
1

This is the example, I have to pals, Scooby and Shaggy. Scooby is in Shaggy’s roster and Shaggy is in Scooby’s roster too. When Shaggy asks to remove Scooby from his roster, I try with this code:

…

RosterEntry entry = roster.getEntry(userName);

connection.removeEntry(entry)

…

But Scooby lost Shaggy’s entry too, and Shaggy desapear from his roster.

Is it possible from smack to change the subscription type from “both” to “from”?

2

You can do this on Scooby’s side - when he receives the unsubscribed packet, you can ask the user if they want to unsubscribe too, or do an action by default (which usually is to unsubscribe aswell).

3

Thanks Op3racional. But what Im needing is what is the method that allow me to change the subscription type on a roster entry from smack. I got the concept, I need the method.

4

If you set your Roster.SubscriptionMode to manual, that means your application has to react to subscription Packets in

public void processPacket(Packet packet)

/** listens for Presence packets for manual subscriprion mode */
    @Override
    public void processPacket(Packet packet) {
        // packetlistener
        final Presence presence = (Presence) packet;
        final String from = presence.getFrom();
                if (presence.getType() == Presence.Type.subscribe) {
            // check if the user is already subscribed
            if (roster.isSubscribed(from)) {
                Presence response = new Presence(Presence.Type.subscribed);
                response.setTo(from);
                con.sendPacket(response);
                return;
            }
                        // ask user to accept or deny subscription request             //snip             if (n == JOptionPane.YES_OPTION) {
                // send subscription accept packet
                Presence response = new Presence(Presence.Type.subscribed);
                response.setTo(from);
                con.sendPacket(response);
            } else {
                // send subscription deny packet
                Presence response = new Presence(Presence.Type.unsubscribe);
                response.setTo(from);
                con.sendPacket(response);
            }
        } else             if (presence.getType() == Presence.Type.unsubscribe) {
                SwingUtilities.invokeLater(new Runnable() {
                @Override
                    public void run() {
                        final RosterEntry entry = roster.getEntry(from);
                        if (entry != null) {
                            try {
                                roster.removeEntry(entry);
                            }
                            catch (XMPPException ex) {
                                Presence unsub = new Presence(Presence.Type
                                        .unsubscribed);
                                unsub.setTo(from);
                                con.sendPacket(unsub);
                                ex.printStackTrace();
                            }
                        }
                    }
                });
            } else                 if (presence.getType() == Presence.Type.subscribed) {
                    // update roster GUI
                } else                     if (presence.getType() == Presence.Type.unsubscribed) {
                        SwingUtilities.invokeLater(new Runnable() {
                            @Override
                            public void run() {
                                final RosterEntry entry = roster.getEntry(from);
                                if (entry != null) {
                                    try {
                                        roster.removeEntry(entry);
                                    }
                                    catch (XMPPException ex) {
                                        ex.printStackTrace();
                                    }
                                }
                            }
                        });
                    }
    }
5

Thanks a lot Op3racional. I almost resolved it. I think the problem is that I set “Roster.setDefaultSubscriptionMode(accept_all)”. When I did it, I was thinking about subscription and have forgotten unsubscription (it seems that hapen automatically too!). I’ll try, then I’ll tell you about it …