public class DisniRdmaProvider implements RdmaProvider {
    private RdmaActiveEndpointGroup<DisniRdmaEndpoint> endpointGroup;
    private RdmaActiveEndpoint endpoint;
    private boolean initialized = false;
    
    @Override
    public boolean isAvailable() {
        try {
            // Check if DiSNI is available
            Class.forName("com.ibm.disni.RdmaActiveEndpointGroup");
            return true;

    /**
     * Check if this is the primary channel
     *
     * @return true if primary
     */
    public boolean isPrimary() {
        return isPrimary;
    }

    /**
     * Set primary channel flag
     *
     * @param primary true if primary
     */
    public void setPrimary(boolean primary) {
        this.isPrimary = primary;
    }

    /**
     * Get number of bytes sent
     *

     * @param size the size of the signature data
     * @return whether signature verification is successful
     */
    boolean verifySignature(byte[] buffer, int i, int size);

    /**
     * Checks if signature verification failed.
     *
     * @return whether signature verification failed
     */
    boolean isVerifyFailed();

    /**
     * Checks if the response indicates an error.
     *

    private int capability;
    private int linkSpeed; // In units of 1 Mbps
    private byte[] sockaddrStorage;
    private InetAddress address;
    private boolean ipv6;
    private boolean rssCapable; // Receive Side Scaling
    private boolean rdmaCapable;

    /**
     * Create network interface info
     *
     * @param address interface address
     * @param linkSpeed link speed in Mbps
     */

    fun verify(
      hostname: String?,
      session: SSLSession?,
    ): Boolean = true

    override fun verify(
      certs: Array<out X509Certificate>?,
      hostname: String?,
      session: SSLSession?,
    ): Boolean = true
  }

  override fun trustManager(sslSocketFactory: SSLSocketFactory): X509TrustManager? = null

  override fun configureTlsExtensions(

  // exception.
  private void setupCloseable(boolean shouldThrow) throws IOException {
    mockCloseable = mock(Closeable.class);
    if (shouldThrow) {
      doThrow(new IOException("This should only appear in the logs. It should not be rethrown."))
          .when(mockCloseable)
          .close();
    }
  }

  private void doClose(Closeable closeable, boolean swallowException) throws IOException {

    )
  }

  class Builder {
    internal var tls: Boolean = false
    internal var cipherSuites: Array<String>? = null
    internal var tlsVersions: Array<String>? = null
    internal var supportsTlsExtensions: Boolean = false

    internal constructor(tls: Boolean) {
      this.tls = tls
    }

    constructor(connectionSpec: ConnectionSpec) {

        new ListenableFuture<String>() {
          @Override
          public boolean cancel(boolean interrupt) {
            return false;
          }

          @Override
          public boolean isDone() {
            return true;
          }

          @Override
          public boolean isCancelled() {
            return false; // BAD!!
          }

          @Override

    private static final Map<String, Set<?>> NAMED_STOP_WORDS = singletonMap("_japanese_", JapaneseAnalyzer.getDefaultStopSet());

    private final CharArraySet stopWords;

    private final boolean ignoreCase;

    private final boolean removeTrailing;

    public JapaneseStopTokenFilterFactory(IndexSettings indexSettings, Environment env, String name, Settings settings) {
        super(indexSettings, name, settings);

    /**
     * The total number of pages available.
     */
    private int allPageCount;

    /**
     * Whether a previous page exists.
     */
    private boolean existPrePage;

    /**
     * Whether a next page exists.
     */
    private boolean existNextPage;

    /**
     * The list of page numbers for navigation.
     */
    private List<Integer> pageNumberList;

    /**