// Simple implementation - could be enhanced with proper cluster discovery
        String hostname = serverAddress.getHostName();
        if (hostname != null && hostname.contains(".")) {
            // Extract potential cluster name from hostname
            String[] parts = hostname.split("\\.");
            if (parts.length > 1) {
                return parts[0]; // Use first part as cluster name

            .addValue(null)
            .add(SHORT_NAME, Optional.of("1"))
            .add(LONG_NAME, Optional.of("1"))
            .add(SHORT_NAME, Optional.absent())
            .add(LONG_NAME, Optional.absent())
            .add(SHORT_NAME, Optional.of("2"))
            .add(SHORT_NAME, Optional.absent())
            .addValue(null)
            .add(SHORT_NAME, new int[] {1})
            .add(LONG_NAME, new int[] {2})

     */
    public static UniAddress getByName(final String hostname) throws UnknownHostException {
        return getByName(hostname, false);
    }

    static boolean isDotQuadIP(final String hostname) {
        if (hostname != null && hostname.length() > 0 && Character.isDigit(hostname.charAt(0))) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */

    }

    @Test
    void testGetByName_String() throws UnknownHostException {
        // Arrange
        String hostname = "testHostname";
        Address expectedAddress = mock(Address.class);
        when(nameServiceClient.getByName(hostname)).thenReturn(expectedAddress);

        // Act
        Address actualAddress = nameServiceClient.getByName(hostname);

      }
    }

    return lookupHttps(hostname)
  }

  @Throws(UnknownHostException::class)
  private fun lookupHttps(hostname: String): List<InetAddress> {
    val networkRequests =
      buildList {
        add(client.newCall(buildRequest(hostname, DnsRecordCodec.TYPE_A)))

        if (includeIPv6) {
          add(client.newCall(buildRequest(hostname, DnsRecordCodec.TYPE_AAAA)))
        }
      }

     * @return The store name.
     */
    public String storeName() {
        return storeName;
    }

    /**
     * Sets the name of the feature store.
     *
     * @param storeName The store name.
     * @return This query builder.
     */
    public StoredLtrQueryBuilder storeName(final String storeName) {
        this.storeName = storeName;
        return this;
    }

    /**

        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setHostname_SpanTerm(String hostname) {
        setHostname_SpanTerm("hostname", null);
    }

    public void setHostname_SpanTerm(String hostname, ConditionOptionCall<SpanTermQueryBuilder> opLambda) {
        SpanTermQueryBuilder builder = regSpanTermQ("hostname", hostname);

        auth.setServer("hostname");
        auth.setPort(21);
        auth.setUsername("testuser");
        auth.setPassword("testpass");

        assertTrue(auth.matches("ftp://hostname:21/test/aaa.html"));
        assertTrue(auth.matches("ftp://hostname/test/aaa.html"));
        assertTrue(auth.matches("ftp://hostname:21/test"));
        assertTrue(auth.matches("ftp://hostname/test"));

    }
  }

  /** Returns true if [certificate] matches [hostname]. */
  private fun verifyHostname(
    hostname: String,
    certificate: X509Certificate,
  ): Boolean {
    val hostname = hostname.asciiToLowercase()
    return getSubjectAltNames(certificate, ALT_DNS_NAME).any {
      verifyHostname(hostname, it)
    }
  }

  /**

  fun check(
    hostname: String,
    vararg peerCertificates: Certificate,
  ) {
    check(hostname, peerCertificates.toList())
  }

  /**
   * Returns list of matching certificates' pins for the hostname. Returns an empty list if the
   * hostname does not have pinned certificates.
   */
  fun findMatchingPins(hostname: String): List<Pin> = pins.filterList { matchesHostname(hostname) }