Examples of org.xmpp.packet.Presence

org.xmpp.packet.Presence
Presence packet. Presence packets are used to express an entity's current network availability and to notify other entities of that availability. Presence packets are also used to negotiate and manage subscriptions to the presence of other entities.
A presence optionally has a {@link Type}. @author Matt Tucker

          if(result != null)
            manager.sendPacket(this,result);
        }
      }
    } else if(packet instanceof Presence) {
      Presence presence = (Presence)packet;
      if(presence.getTo().equals(componentJID)) {
        Kernel.debug(this,"Presence packet to: " + packet.getTo().toString() + " .. type: " + presence.getType(),3);
        if(presence.getType() == null || presence.getType() == Presence.Type.probe) { // available
          Presence reply = new Presence();
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
        } else if(presence.getType() == Presence.Type.subscribe) {
          Presence reply = new Presence(Presence.Type.subscribed);
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
        }
      } else {
        if(presence.getType() == Presence.Type.subscribe) {
          Presence reply = new Presence(Presence.Type.subscribed);
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
          //addSubscription(presence.getFrom().toBareJID(),presence.getTo().getNode());
        } else if(presence.getType() == null || presence.getType() == Presence.Type.probe) { // available
          //Kernel.debug(this,"Available presence packet to: " + presence.getTo().toString(),2);
          Presence reply = new Presence();
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
          //addSubscription(presence.getFrom().toBareJID(),presence.getTo().getNode());
        }
      }
    }

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              else {
                if(registration == null)
                  db.sendInsert(null,"goim_component_registrations","subdomain,jid,username,password",getSubdomain(),iq.getFrom().toBareJID(),username,"");
                else
                  db.sendUpdate(null,"goim_component_registrations","username=?,password=?",new Object[]{username,""},"id=?",registration.get("id"));
                Presence presence = new Presence(Presence.Type.subscribe);
                presence.setTo(iq.getFrom());
                presence.setFrom(componentJID);
                manager.sendPacket(this,presence);
              }
            }
          } else
            result = null;
          if(result != null)
            manager.sendPacket(this,result);
        }
      }
    } else if(packet instanceof Presence) {
      Presence presence = (Presence)packet;
      if(presence.getTo().equals(componentJID)) {
        Kernel.debug(this,"Presence packet to: " + packet.getTo().toString() + " .. type: " + presence.getType(),3);
        if(presence.getType() == null || presence.getType() == Presence.Type.probe) { // available
          Presence reply = new Presence();
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
        } else if(presence.getType() == Presence.Type.subscribe) {
          Presence reply = new Presence(Presence.Type.subscribed);
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
        }
      } else {
        if(presence.getType() == Presence.Type.subscribe) {
          Presence reply = new Presence(Presence.Type.subscribed);
          reply.setTo(presence.getFrom());
          reply.setFrom(presence.getTo());
          manager.sendPacket(this,reply);
          addSubscription(presence.getFrom().toBareJID(),presence.getTo().getNode());
        } else if(presence.getType() == null || presence.getType() == Presence.Type.probe) { // available
          // Kernel.debug(this,"Available presence packet to: " +
          // presence.getTo().toString(),2);
          if(presence.getType() == Presence.Type.probe) {
            Presence reply = new Presence(Presence.Type.unavailable);
            reply.setTo(presence.getFrom());
            reply.setFrom(presence.getTo());
            manager.sendPacket(this,reply);
          }
          addSubscription(presence.getFrom().toBareJID(),presence.getTo().getNode());
        }
      }
    } else if(packet instanceof Message) {
      Message message = (Message)packet;
      if(message.getBody().startsWith("show")) {
        Message reply = new Message();
        reply.setTo(message.getFrom());
        reply.setFrom(message.getTo());
        reply.setType(message.getType());
        reply.setThread(message.getThread());
        StringBuffer subs = new StringBuffer("Your Subscriptions:\n");
        for(String lfsusername : subscriptions.keySet()) {
          List<String> jids = subscriptions.get(lfsusername.toLowerCase());
          if(jids == null) continue;
          if(jids.contains(message.getFrom().toBareJID()))
            subs.append("- ").append(lfsusername).append("\n");
        }
        reply.setBody(subs.toString());
        manager.sendPacket(this,reply);
      }
    } else
      Kernel.debug(this,"Received packet: " + packet.getClass().toString() + " " + packet.toXML(),2);
  }

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    Kernel.debug(this, "debug()", 3);
  }


  public void sendPresence(JID from, String jid, String lfsusername,
      LFSHost host) {
    Presence presence = new Presence();
    presence.setFrom(from);
    presence.setTo(new JID(jid));
    presence.setShow(Presence.Show.away);
    String servername = host.name.replaceAll("\\^\\d", "");
    presence.setStatus("Playing on server " + servername + " with "
        + host.nrofracers + " other racers. (Servername with colors: "
        + host.name + ")");
    Element x = presence.addChildElement("x",
        "http://goim.sphene.net/gameStatus");
    x.addAttribute("game", "lfss2");
    x.addAttribute("target", "127.0.0.1:100"); // We need to add a dummy
                          // target.
    x.addAttribute("servername", host.name);

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    List<String> jids = subscriptions.get(lfsusername.toLowerCase());
    if (jids == null)
      return;
    JID from = new JID(lfsusername, componentJID.getDomain(), null);
    for (String jid : jids) {
      Presence presence = new Presence(Presence.Type.unavailable);
      presence.setFrom(from);
      presence.setTo(new JID(jid));
      manager.sendPacket(this, presence);
    }
  }

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        return SessionManager.getInstance().isAnonymousRoute(getAddress());
    }


    public boolean isInitialized() {
        if (initialized == -1) {
            Presence presence = getPresence();
            if (presence != null && presence.isAvailable()) {
                // Optimization to avoid making a remote call
                initialized = 1;
            }
            else {
                ClusterTask task = getRemoteSessionTask(RemoteSessionTask.Operation.isInitialized);

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        }


        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
            super.readExternal(in);
            Element packetElement = (Element) ExternalizableUtil.getInstance().readSerializable(in);
            presence = new Presence(packetElement, true);
        }

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        if (itemToRemove != null) {
            RosterItem.SubType subType = itemToRemove.getSubStatus();


            // Cancel any existing presence subscription between the user and the contact
            if (subType == RosterItem.SUB_TO || subType == RosterItem.SUB_BOTH) {
                Presence presence = new Presence();
                presence.setFrom(server.createJID(username, null));
                presence.setTo(itemToRemove.getJid());
                presence.setType(Presence.Type.unsubscribe);
                server.getPacketRouter().route(presence);
            }


            // cancel any existing presence subscription between the contact and the user
            if (subType == RosterItem.SUB_FROM || subType == RosterItem.SUB_BOTH) {
                Presence presence = new Presence();
                presence.setFrom(server.createJID(username, null));
                presence.setTo(itemToRemove.getJid());
                presence.setType(Presence.Type.unsubscribed);
                server.getPacketRouter().route(presence);
            }


            // If removing the user was successful, remove the user from the subscriber list:
            RosterItem item = rosterItems.remove(user.toBareJID());


            if (item != null) {
                // Delete the item from the provider if the item is persistent. RosteItems that only
                // belong to shared groups won't be persistent
                if (item.getID() > 0) {
                    // If removing the user was successful, remove the user from the backend store
                    rosterItemProvider.deleteItem(username, item.getID());
                }


                // Broadcast the update to the user
                org.xmpp.packet.Roster roster = new org.xmpp.packet.Roster();
                roster.setType(IQ.Type.set);
                roster.addItem(user, org.xmpp.packet.Roster.Subscription.remove);
                broadcast(roster);
                // Fire event indicating that a roster item has been deleted
                RosterEventDispatcher.contactDeleted(this, item);
            }


            return item;
        }
        else {
            // Verify if the item being removed is an implicit roster item
            // that only exists due to some shared group
            RosterItem item = getImplicitRosterItem(user);
            if (item != null) {
                implicitFrom.remove(user.toBareJID());
                // If the contact being removed is not a local user then ACK unsubscription
                if (!server.isLocal(user)) {
                    Presence presence = new Presence();
                    presence.setFrom(server.createJID(username, null));
                    presence.setTo(user);
                    presence.setType(Presence.Type.unsubscribed);
                    server.getPacketRouter().route(presence);
                }
                // Fire event indicating that a roster item has been deleted
                RosterEventDispatcher.contactDeleted(this, item);
            }

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                reply.setChildElement(((IQ) packet).getChildElement().createCopy());
                reply.setError(PacketError.Condition.remote_server_not_found);
                routingTable.routePacket(reply.getTo(), reply, true);
            }
            else if (packet instanceof Presence) {
                Presence reply = new Presence();
                reply.setID(packet.getID());
                reply.setTo(packet.getFrom());
                reply.setFrom(packet.getTo());
                reply.setError(PacketError.Condition.remote_server_not_found);
                routingTable.routePacket(reply.getTo(), reply, true);
            }
            else if (packet instanceof Message) {
                Message reply = new Message();
                reply.setID(packet.getID());
                reply.setTo(packet.getFrom());
                reply.setFrom(packet.getTo());
                reply.setType(((Message)packet).getType());
                reply.setThread(((Message)packet).getThread());
                reply.setError(PacketError.Condition.remote_server_not_found);
                routingTable.routePacket(reply.getTo(), reply, true);
            }
        }
        catch (Exception e) {
            Log.warn("Error returning error to sender. Original packet: " + packet, e);
        }

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        return answer;
    }


    public void run() {
        try {
            Presence presence = getRoom().updateOccupant(this);
            if (presence != null) {
                answer = presence.getElement();
            }
        } catch (NotAllowedException e) {
            // Do nothing. A null return value means that the operation failed
        }
    }

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    @Override
  public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        super.readExternal(in);
        Element packetElement = (Element) ExternalizableUtil.getInstance().readSerializable(in);
        presence = new Presence(packetElement, true);
    }

View Full Code Here

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