@Override
        public HighlightInfo getHighlightInfo() {
            return new HighlightInfo().fragmentSize(Integer.parseInt(fessConfig.getOrDefault("rag.chat.highlight.fragment.size", "500")))
                    .numOfFragments(Integer.parseInt(fessConfig.getOrDefault("rag.chat.highlight.number.of.fragments", "3")))
                    .preTags(StringUtil.EMPTY)
                    .postTags(StringUtil.EMPTY);
        }

        LifecycleMappingDelegate delegate;
        if (List.of(DefaultLifecycles.STANDARD_LIFECYCLES).contains(lifecycle.getId())) {
            delegate = standardDelegate;
        } else {
            delegate = delegates.getOrDefault(lifecycle.getId(), standardDelegate);
        }

        return delegate.calculateLifecycleMappings(session, project, lifecycle, lifecyclePhase);
    }

    /**

        String styleColor = context.options()
                .color()
                .orElse(effectiveProperties.getOrDefault(
                        Constants.MAVEN_STYLE_COLOR_PROPERTY, effectiveProperties.getOrDefault("style.color", "auto")))
                .toLowerCase(Locale.ENGLISH);
        if ("always".equals(styleColor) || "yes".equals(styleColor) || "force".equals(styleColor)) {

     * @return the maximum message length
     */
    protected int getMaxMessageLength(final FessConfig fessConfig) {
        try {
            return Integer.parseInt(fessConfig.getOrDefault("rag.chat.message.max.length", "4000"));
        } catch (final NumberFormatException e) {
            logger.warn("Invalid rag.chat.message.max.length config, using default 4000");
            return 4000;
        }

    if (value == null) {
      globalStatsCounter.recordMisses(1);
    } else {
      globalStatsCounter.recordHits(1);
    }
    return value;
  }

  @Override
  public @Nullable V getOrDefault(@Nullable Object key, @Nullable V defaultValue) {
    V result = get(key);
    return (result != null) ? result : defaultValue;
  }

  V getOrLoad(K key) throws ExecutionException {

    if (value == null) {
      globalStatsCounter.recordMisses(1);
    } else {
      globalStatsCounter.recordHits(1);
    }
    return value;
  }

  @Override
  public @Nullable V getOrDefault(@Nullable Object key, @Nullable V defaultValue) {
    V result = get(key);
    return (result != null) ? result : defaultValue;
  }

  V getOrLoad(K key) throws ExecutionException {

     *
     * @param index the index configuration name
     */
    protected void sendConfigFiles(final String index) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        configListMap.getOrDefault(index, Collections.emptyList()).forEach(path -> {
            String source = null;
            final String filePath = indexConfigPath + "/" + index + "/" + path;
            final String dictionaryPath;