private static void configureTransportFactory(
        ITransportFactory transportFactory, LoaderOptions opts) {
      Map<String, String> options = new HashMap<>();
      // If the supplied factory supports the same set of options as our SSL impl, set those
      if (transportFactory.supportedOptions().contains(SSLTransportFactory.TRUSTSTORE))
        options.put(SSLTransportFactory.TRUSTSTORE, opts.encOptions.truststore);
      if (transportFactory.supportedOptions().contains(SSLTransportFactory.TRUSTSTORE_PASSWORD))
        options.put(SSLTransportFactory.TRUSTSTORE_PASSWORD, opts.encOptions.truststore_password);
      if (transportFactory.supportedOptions().contains(SSLTransportFactory.PROTOCOL))
        options.put(SSLTransportFactory.PROTOCOL, opts.encOptions.protocol);
      if (transportFactory.supportedOptions().contains(SSLTransportFactory.CIPHER_SUITES))
        options.put(
            SSLTransportFactory.CIPHER_SUITES, Joiner.on(',').join(opts.encOptions.cipher_suites));

      if (transportFactory.supportedOptions().contains(SSLTransportFactory.KEYSTORE)
          && opts.encOptions.require_client_auth)
        options.put(SSLTransportFactory.KEYSTORE, opts.encOptions.keystore);
      if (transportFactory.supportedOptions().contains(SSLTransportFactory.KEYSTORE_PASSWORD)
          && opts.encOptions.require_client_auth)
        options.put(SSLTransportFactory.KEYSTORE_PASSWORD, opts.encOptions.keystore_password);

      // Now check if any of the factory's supported options are set as system properties
      for (String optionKey : transportFactory.supportedOptions())
        if (System.getProperty(optionKey) != null)
          options.put(optionKey, System.getProperty(optionKey));

      transportFactory.setOptions(options);
    }
 private static Cassandra.Client createThriftClient(
     String host, int port, String user, String passwd, ITransportFactory transportFactory)
     throws Exception {
   TTransport trans = transportFactory.openTransport(host, port);
   TProtocol protocol = new TBinaryProtocol(trans);
   Cassandra.Client client = new Cassandra.Client(protocol);
   if (user != null && passwd != null) {
     Map<String, String> credentials = new HashMap<>();
     credentials.put(IAuthenticator.USERNAME_KEY, user);
     credentials.put(IAuthenticator.PASSWORD_KEY, passwd);
     AuthenticationRequest authenticationRequest = new AuthenticationRequest(credentials);
     client.login(authenticationRequest);
   }
   return client;
 }