Examples of org.jivesoftware.smack.packet.Presence

org.jivesoftware.smack.packet.Presence
Represents XMPP presence packets. Every presence packet has a type, which is one of the following values:
- {@link Presence.Type#available available} -- (Default) indicates the user is available toreceive messages.
- {@link Presence.Type#unavailable unavailable} -- the user is unavailable to receive messages.
- {@link Presence.Type#subscribe subscribe} -- request subscription to recipient's presence.
- {@link Presence.Type#subscribed subscribed} -- grant subscription to sender's presence.
- {@link Presence.Type#unsubscribe unsubscribe} -- request removal of subscription tosender's presence.
- {@link Presence.Type#unsubscribed unsubscribed} -- grant removal of subscription tosender's presence.
- {@link Presence.Type#error error} -- the presence packet contains an error message.
A number of attributes are optional:
- Status -- free-form text describing a user's presence (i.e., gone to lunch).
- Priority -- non-negative numerical priority of a sender's resource. The highest resource priority is the default recipient of packets not addressed to a particular resource.
- Mode -- one of five presence modes: {@link Mode#available available} (the default),{@link Mode#chat chat}, {@link Mode#away away}, {@link Mode#xa xa} (extended away), and{@link Mode#dnd dnd} (do not disturb).
Presence packets are used for two purposes. First, to notify the server of our the clients current presence status. Second, they are used to subscribe and unsubscribe users from the roster. @see RosterPacket @author Matt Tucker

            throw new IllegalStateException("Must be logged into the room to change nickname.");
        }
        // We change the nickname by sending a presence packet where the "to"
        // field is in the form "roomName@service/nickname"
        // We don't have to signal the MUC support again
        Presence joinPresence = new Presence(Presence.Type.available);
        joinPresence.setTo(room + "/" + nickname);
        // Invoke presence interceptors so that extra information can be dynamically added
        for (PacketInterceptor packetInterceptor : presenceInterceptors) {
            packetInterceptor.interceptPacket(joinPresence);
        }


        // Wait for a presence packet back from the server.
        PacketFilter responseFilter =
            new AndFilter(
                new FromMatchesFilter(room + "/" + nickname),
                new PacketTypeFilter(Presence.class));
        PacketCollector response = connection.createPacketCollector(responseFilter);
        // Send join packet.
        connection.sendPacket(joinPresence);
        // Wait up to a certain number of seconds for a reply.
        Presence presence =
            (Presence) response.nextResult(SmackConfiguration.getPacketReplyTimeout());
        // Stop queuing results
        response.cancel();


        if (presence == null) {
            throw new XMPPException("No response from server.");
        }
        else if (presence.getError() != null) {
            throw new XMPPException(presence.getError());
        }
        this.nickname = nickname;
    }

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            throw new IllegalStateException(
                "Must be logged into the room to change the " + "availability status.");
        }
        // We change the availability status by sending a presence packet to the room with the
        // new presence status and mode
        Presence joinPresence = new Presence(Presence.Type.available);
        joinPresence.setStatus(status);
        joinPresence.setMode(mode);
        joinPresence.setTo(room + "/" + nickname);
        // Invoke presence interceptors so that extra information can be dynamically added
        for (PacketInterceptor packetInterceptor : presenceInterceptors) {
            packetInterceptor.interceptPacket(joinPresence);
        }

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     * @param user the room occupant to search for his presence. The format of user must
     * be: roomName@service/nickname (e.g. darkcave@macbeth.shakespeare.lit/thirdwitch).
     * @return the Occupant or <tt>null</tt> if the user is unavailable (i.e. not in the room).
     */
    public Occupant getOccupant(String user) {
        Presence presence = occupantsMap.get(user);
        if (presence != null) {
            return new Occupant(presence);
        }
        return null;
    }

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        };


        // Create a listener for all presence updates.
        PacketListener presenceListener = new PacketListener() {
            public void processPacket(Packet packet) {
                Presence presence = (Presence) packet;
                String from = presence.getFrom();
                String myRoomJID = room + "/" + nickname;
                boolean isUserStatusModification = presence.getFrom().equals(myRoomJID);
                if (presence.getType() == Presence.Type.available) {
                    Presence oldPresence = occupantsMap.put(from, presence);
                    if (oldPresence != null) {
                        // Get the previous occupant's affiliation & role
                        MUCUser mucExtension = getMUCUserExtension(oldPresence);
                        String oldAffiliation = mucExtension.getItem().getAffiliation();
                        String oldRole = mucExtension.getItem().getRole();

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        if (active == newValue || connection == null) {
            return;
        }
        active = newValue;


        Presence presence = new Presence(Presence.Type.available);
        if (active) {
            presence.setMode(Presence.Mode.available);
            presence.setStatus(Messages.LocalPresenceTracker_eclipse_active);
        } else {
            presence.setMode(Presence.Mode.away);
            presence.setStatus(Messages.LocalPresenceTracker_eclipse_background);
        }
        connection.sendPacket(presence);
    }

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            : RosterUtils.getDisplayableName(rosterEntry));


        /*
         * Append presence information if available. Otherwise append presence.
         */
        final Presence presence = roster.getPresence(this.jid.getBase());
        if (rosterEntry != null
            && rosterEntry.getStatus() == RosterPacket.ItemStatus.SUBSCRIPTION_PENDING) {
            styledString.append(" (" + subscription_pending + ")", //$NON-NLS-1$ //$NON-NLS-2$
                StyledString.COUNTER_STYLER);
        } else if (presence != null && presence.getType() != Type.available
            && presence.getType() != Type.unavailable) {
            styledString.append(" (" + presence.getType() + ")", //$NON-NLS-1$ //$NON-NLS-2$
                StyledString.COUNTER_STYLER);
        }


        /*
         * Append DataTransfer state information if debug mode is enabled.
         */
        if (presence != null && presence.isAvailable()) {
            final NetTransferMode transferMode = dataTransferManager
                .getTransferMode(jid);


            if (transferMode != NetTransferMode.NONE) {
                styledString.append(

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    @Override
    public Image getImage() {
        if (this.roster == null)
            return null;


        final Presence presence = this.roster.getPresence(jid.getBase());
        boolean sarosSupported = isSarosSupported();


        if (presence.isAvailable()) {
            if (presence.isAway()) {
                return sarosSupported ? ImageManager.ICON_BUDDY_SAROS_AWAY
                    : ImageManager.ICON_BUDDY_AWAY;
            } else {
                return sarosSupported ? ImageManager.ICON_BUDDY_SAROS
                    : ImageManager.ICON_BUDDY;

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            return ImageManager.ICON_BUDDY_OFFLINE;
        }
    }


    public boolean isOnline() {
        Presence presence = this.roster.getPresence(this.jid.getBase());
        return presence.isAvailable() || presence.isAway();
    }

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        assertEquals(0, roster.getGroupCount());


        Collection<RosterGroup> groups = roster.getGroups();
        assertEquals(0, groups.size());


        Presence presence = roster.getPresence("test");
        assertEquals(Presence.Type.unavailable, presence.getType());


        Presence presenceResource = roster.getPresenceResource("test");
        assertEquals(Presence.Type.unavailable, presenceResource.getType());


        Iterator<Presence> iterator = roster.getPresences("test");
        assertTrue(iterator.hasNext());
        assertEquals(Presence.Type.unavailable, iterator.next().getType());
        assertFalse(iterator.hasNext());

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            MultiUserChat muc2 = new MultiUserChat(getConnection(1), room);
            muc2.join("testbot2");
            Thread.sleep(400);


            // User1 checks the presence of user2 in the room
            Presence presence = muc.getOccupantPresence(room + "/testbot2");
            assertNotNull("Presence of user2 in room is missing", presence);
            assertTrue(
                "Presence mode of user2 is wrong",
                presence.getMode() == null || presence.getMode() == Presence.Mode.available);


            // User2 changes his availability to AWAY
            muc2.changeAvailabilityStatus("Gone to have lunch", Presence.Mode.away);
            Thread.sleep(200);
            // User1 checks the presence of user2 in the room
            presence = muc.getOccupantPresence(room + "/testbot2");
            assertNotNull("Presence of user2 in room is missing", presence);
            assertEquals("Presence mode of user2 is wrong", Presence.Mode.away, presence.getMode());
            assertEquals(
                "Presence status of user2 is wrong",
                "Gone to have lunch",
                presence.getStatus());


            // User2 changes his nickname
            muc2.changeNickname("testbotII");
            Thread.sleep(200);
            // User1 checks the presence of user2 in the room
            presence = muc.getOccupantPresence(room + "/testbot2");
            assertNull("Presence of participant testbot2 still exists", presence);
            presence = muc.getOccupantPresence(room + "/testbotII");
            assertNotNull("Presence of participant testbotII does not exist", presence);
            assertEquals(
                "Presence of participant testbotII has a wrong from",
                room + "/testbotII",
                presence.getFrom());


            // User2 leaves the room
            muc2.leave();
            Thread.sleep(250);
            // User1 checks the presence of user2 in the room

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