ResolveListener resolveListener = new ResolveListener() {

  @Override
  public void onResolveFailed(NsdServiceInfo nsdServiceInfo, int errorCode) {
    Log.e(Constants.TAG, "Resolve failed: " + errorCode);
  }
  
  @Override
  public void onServiceResolved(NsdServiceInfo nsdServiceInfo) {
    Log.i(Constants.TAG, "Resolve succeeded: " + nsdServiceInfo);
    
    if (nsdServiceInfo.getServiceName().equals(serviceName)) {
      Log.i(Constants.TAG, "The service running on the same machine has been discovered.");
      return;
    }
    
    String host = nsdServiceInfo.getHost().toString();
    if(host.startsWith("/")) {
      host = host.substring(1);
    }
    int port = nsdServiceInfo.getPort();
    
    ArrayList<NetworkService> discoveredServices = chatActivity.getDiscoveredServices();
    NetworkService networkService = new NetworkService(nsdServiceInfo.getServiceName(), host, port, Constants.CONVERSATION_TO_SERVER);
    if (!discoveredServices.contains(networkService)) {
      discoveredServices.add(networkService);
      chatActivity.setDiscoveredServices(discoveredServices);
    }
    
    Log.i(Constants.TAG, "A service has been discovered on " + host + ":" + port);
  }
};