* This class provides functionality to load, cache, and retrieve related queries
 * based on search terms and virtual hosts. Related queries are used to suggest
 * alternative or supplementary search terms to improve search results.
 */
public class RelatedQueryHelper extends AbstractConfigHelper {
    private static final Logger logger = LogManager.getLogger(RelatedQueryHelper.class);

    /**

    return Platform.get(this);
  }

  /**
   * Returns the result of this future or throws in case of failure, just like {@link #get()} except
   * that this method <i>also</i> throws if this future is not done.
   *
   * <p>This method computes its result based on the internal state of {@link AbstractFuture}, so it
   * does not necessarily return the same result as {@link #get()} if {@link #get()} has been

  /**
   * Override to return a chaining listenableFuture that returns the result of getSuccessfulResult()
   * when inputFuture returns VALID_INPUT_DATA, and sets the exception to EXCEPTION in all other
   * cases.
   */
  protected abstract ListenableFuture<T> buildChainingFuture(ListenableFuture<Integer> inputFuture);

  /**
   * Override to return the result when VALID_INPUT_DATA is passed in to the chaining
   * listenableFuture
   */

        .setBody(fileToBytes(file))
        .addHeader("content-type: " + contentType(path));
  }

  private Buffer fileToBytes(File file) throws IOException {
    Buffer result = new Buffer();
    result.writeAll(Okio.source(file));
    return result;
  }

  private String contentType(String path) {
    if (path.endsWith(".png")) return "image/png";
    if (path.endsWith(".jpg")) return "image/jpeg";

  for (dns in dnsProviders) {
    println("Testing ${dns.url}")
    for (host in names) {
      print("$host: ")
      System.out.flush()
      try {
        val results = dns.lookup(host)
        println(results)
      } catch (uhe: UnknownHostException) {
        var e: Throwable? = uhe
        while (e != null) {
          println(e)
          e = e.cause
        }
      }
    }
    println()

    }

    Map<K, ImmutableCollection.Builder<V>> ensureBuilderMapNonNull() {
      Map<K, ImmutableCollection.Builder<V>> result = builderMap;
      if (result == null) {
        result = Platform.preservesInsertionOrderOnPutsMap();
        builderMap = result;
      }
      return result;
    }

    ImmutableCollection.Builder<V> newValueCollectionBuilderWithExpectedSize(int expectedSize) {

    /** Service for managing search log data */
    @Resource
    private SearchLogService searchLogService;
    /** Pager for paginating search log results */
    @Resource
    private SearchLogPager searchLogPager;

    // ===================================================================================

    if (elements instanceof ImmutableMultiset) {
      @SuppressWarnings("unchecked") // all supported methods are covariant
      ImmutableMultiset<E> result = (ImmutableMultiset<E>) elements;
      if (!result.isPartialView()) {
        return result;
      }
    }
    ImmutableMultiset.Builder<E> builder =
        new ImmutableMultiset.Builder<E>(Multisets.inferDistinctElements(elements));

     */
    fun concatLengthPrefixed(protocols: List<Protocol>): ByteArray {
      val result = Buffer()
      for (protocol in alpnProtocolNames(protocols)) {
        result.writeByte(protocol.length)
        result.writeUtf8(protocol)
      }
      return result.readByteArray()
    }
  }

  private ImmutableBiMap<V, K> lazyInverse() {
    JdkBackedImmutableBiMap<V, K> result = lazyInverse;
    return result == null
        ? lazyInverse =
            new JdkBackedImmutableBiMap<>(
                new InverseEntries<>(entries),
                backwardDelegate,
                forwardDelegate,
                /* inverse= */ this)
        : result;
  }