}
        }
        if (!fessConfig.isSearchFileProxyEnabled()) {
            return HtmlResponse.fromRedirectPathAsIs(targetUrl + hash);
        }
        final ViewHelper viewHelper = ComponentUtil.getViewHelper();
        try {
            final StreamResponse response = viewHelper.asContentResponse(doc);
            if (response.getHttpStatus().orElse(200) == 404) {

     *
     * @return list of FacetQueryView objects
     */
    public static List<FacetQueryView> facetQueryViewList() {
        final ViewHelper viewHelper = ComponentUtil.getViewHelper();
        return viewHelper.getFacetQueryViewList();
    }

    /**
     * Creates a URL query string from request parameters that start with the specified prefix.
     *

            searchLog.setUser(user.getUserId());
        });

        LaRequestUtil.getOptionalRequest().ifPresent(req -> {
            searchLog.setClientIp(StringUtils.abbreviate(ComponentUtil.getViewHelper().getClientIp(req), 100));
            searchLog.setReferer(StringUtils.abbreviate(req.getHeader("referer"), 1000));
            searchLog.setUserAgent(StringUtils.abbreviate(req.getHeader("user-agent"), 255));

                                .collect(Collectors.toMap(Entry::getKey, e -> (Object) e.getValue().getValues())));
                    }

                    final ViewHelper viewHelper = ComponentUtil.getViewHelper();
                    if (viewHelper != null && !docMap.isEmpty()) {
                        docMap.put(fessConfig.getResponseFieldContentTitle(), viewHelper.getContentTitle(docMap));

        public String getSimilarDocHash() {
            return request.getParameter("sdh");
        }

        @Override
        public HighlightInfo getHighlightInfo() {
            return ComponentUtil.getViewHelper().createHighlightInfo();
        }
    }

    /**
     * The request parameters for suggest API.
     */
    protected static class RequestParameter extends SearchRequestParams {