public void processPacket(Packet packet) { DiscoverItems discoverItems = (DiscoverItems) packet; // Send back the items defined in the client if the request is of type GET if (discoverItems != null && discoverItems.getType() == IQ.Type.GET) { DiscoverItems response = new DiscoverItems(); response.setType(IQ.Type.RESULT); response.setTo(discoverItems.getFrom()); response.setPacketID(discoverItems.getPacketID()); response.setNode(discoverItems.getNode()); // Add the defined items related to the requested node. Look for // the NodeInformationProvider associated with the requested node. NodeInformationProvider nodeInformationProvider = getNodeInformationProvider(discoverItems.getNode()); if (nodeInformationProvider != null) { // Specified node was found, add node items response.addItems(nodeInformationProvider.getNodeItems()); // Add packet extensions response.addExtensions(nodeInformationProvider.getNodePacketExtensions()); } else if(discoverItems.getNode() != null) { // Return <item-not-found/> error since client doesn't contain // the specified node response.setType(IQ.Type.ERROR); response.setError(new XMPPError(XMPPError.Condition.item_not_found)); } connection.sendPacket(response); } } };