Examples of org.jivesoftware.smackx.ServiceDiscoveryManager

org.jivesoftware.smackx.ServiceDiscoveryManager
Manages discovery of services in XMPP entities. This class provides:
1. A registry of supported features in this XMPP entity.
2. Automatic response when this XMPP entity is queried for information.
3. Ability to discover items and information of remote XMPP entities.
4. Ability to publish publicly available items.
@author Gaston Dombiak

   * @return true, if the room exists, false otherwise
   * @throws XMPPException
   */
  protected boolean checkRoom(String conference, String room) throws XMPPException {
    final XMPPConnection conn = ecfConnection.getXMPPConnection();
    final ServiceDiscoveryManager serviceDiscoveryManager = new ServiceDiscoveryManager(conn);
    final DiscoverItems result = serviceDiscoveryManager.discoverItems(conference);


    for (final Iterator items = result.getItems(); items.hasNext();) {
      final DiscoverItems.Item item = ((DiscoverItems.Item) items.next());
      if (room.equals(item.getEntityID())) {
        return true;

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        if (managers.size() == 0) {
            Socks5Proxy.getSocks5Proxy().stop();
        }


        // remove feature from service discovery
        ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(this.connection);


        // check if service discovery is not already disposed by connection shutdown
        if (serviceDiscoveryManager != null) {
            serviceDiscoveryManager.removeFeature(NAMESPACE);
        }


    }

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     * @return <code>true</code> if the given target JID supports feature SOCKS5 Bytestream
     *         otherwise <code>false</code>
     * @throws XMPPException if there was an error querying target for supported features
     */
    private boolean supportsSocks5(String targetJID) throws XMPPException {
        ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(this.connection);
        DiscoverInfo discoverInfo = serviceDiscoveryManager.discoverInfo(targetJID);
        return discoverInfo.containsFeature(NAMESPACE);
    }

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     * 
     * @return list of JIDs of SOCKS5 proxies
     * @throws XMPPException if there was an error querying the XMPP server for SOCKS5 proxies
     */
    private List<String> determineProxies() throws XMPPException {
        ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager.getInstanceFor(this.connection);


        List<String> proxies = new ArrayList<String>();


        // get all items form XMPP server
        DiscoverItems discoverItems = serviceDiscoveryManager.discoverItems(this.connection.getServiceName());
        Iterator<Item> itemIterator = discoverItems.getItems();


        // query all items if they are SOCKS5 proxies
        while (itemIterator.hasNext()) {
            Item item = itemIterator.next();


            // skip blacklisted servers
            if (this.proxyBlacklist.contains(item.getEntityID())) {
                continue;
            }


            try {
                DiscoverInfo proxyInfo;
                proxyInfo = serviceDiscoveryManager.discoverInfo(item.getEntityID());
                Iterator<Identity> identities = proxyInfo.getIdentities();


                // item must have category "proxy" and type "bytestream"
                while (identities.hasNext()) {
                    Identity identity = identities.next();

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    /**
     * Adds the SOCKS5 Bytestream feature to the service discovery.
     */
    private void enableService() {
        ServiceDiscoveryManager manager = ServiceDiscoveryManager.getInstanceFor(this.connection);
        if (!manager.includesFeature(NAMESPACE)) {
            manager.addFeature(NAMESPACE);
        }
    }

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    private boolean auto_receipts_enabled = false;
    private Set<ReceiptReceivedListener> receiptReceivedListeners = Collections
            .synchronizedSet(new HashSet<ReceiptReceivedListener>());


    private DeliveryReceiptManager(Connection connection) {
        ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
        sdm.addFeature(DeliveryReceipt.NAMESPACE);
        this.connection = connection;
        instances.put(connection, this);


        // register listener for delivery receipts and requests
        connection.addPacketListener(this, new PacketExtensionFilter(DeliveryReceipt.NAMESPACE));

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        return pingManager;
    }


    private PingManager(Connection con) {
        this.connection = con;
        ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
        
        // The ServiceDiscoveryManager was not pre-initialized
        if (sdm == null)
            sdm = new ServiceDiscoveryManager(connection);
        
        sdm.addFeature(Ping.NAMESPACE);
        
        PacketFilter pingPacketFilter = new AndFilter(new PacketTypeFilter(Ping.class), new IQTypeFilter(Type.GET));
        
        connection.addPacketListener(new PacketListener() {
            /**

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     * @return a Collection of search services found on the server.
     * @throws XMPPException thrown if a server error has occurred.
     */
    public Collection<String> getSearchServices() throws XMPPException {
        final List<String> searchServices = new ArrayList<String>();
        ServiceDiscoveryManager discoManager = ServiceDiscoveryManager.getInstanceFor(con);
        DiscoverItems items = discoManager.discoverItems(con.getServiceName());
        Iterator<DiscoverItems.Item> iter = items.getItems();
        while (iter.hasNext()) {
            DiscoverItems.Item item = iter.next();
            try {
                DiscoverInfo info;
                try {
                    info = discoManager.discoverInfo(item.getEntityID());
                }
                catch (XMPPException e) {
                    // Ignore Case
                    continue;
                }

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     * @param connection The connection on which to enable or disable the services.
     * @param isEnabled  True to enable, false to disable.
     */
    public static void setServiceEnabled(final Connection connection,
            final boolean isEnabled) {
        ServiceDiscoveryManager manager = ServiceDiscoveryManager
                .getInstanceFor(connection);


        List<String> namespaces = new ArrayList<String>();
        namespaces.addAll(Arrays.asList(NAMESPACE));
        namespaces.add(InBandBytestreamManager.NAMESPACE);
        if (!IBB_ONLY) {
            namespaces.add(Socks5BytestreamManager.NAMESPACE);
        }


        for (String namespace : namespaces) {
            if (isEnabled) {
                if (!manager.includesFeature(namespace)) {
                    manager.addFeature(namespace);
                }
            } else {
                manager.removeFeature(namespace);
            }
        }
        
    }

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     *
     * @param connection The connection to check
     * @return True if all related services are enabled, false if they are not.
     */
    public static boolean isServiceEnabled(final Connection connection) {
        ServiceDiscoveryManager manager = ServiceDiscoveryManager
                .getInstanceFor(connection);


        List<String> namespaces = new ArrayList<String>();
        namespaces.addAll(Arrays.asList(NAMESPACE));
        namespaces.add(InBandBytestreamManager.NAMESPACE);
        if (!IBB_ONLY) {
            namespaces.add(Socks5BytestreamManager.NAMESPACE);
        }


        for (String namespace : namespaces) {
            if (!manager.includesFeature(namespace)) {
                return false;
            }
        }
        return true;
    }

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