public static String[] getParamValueArray(final HttpServletRequest request, final String param) {
        return simplifyArray(request.getParameterValues(param));
    }

    protected FacetInfo createFacetInfo(final HttpServletRequest request) {
        final String[] fields = getParamValueArray(request, "facet.field");
        final String[] queries = getParamValueArray(request, "facet.query");

        });
    }

    @Execute
    public HtmlResponse search(final SearchForm form) {
        if (viewHelper.isUseSession()) {
            LaRequestUtil.getOptionalRequest().ifPresent(request -> {
                final HttpSession session = request.getSession(false);
                if (session != null && form.num != null) {
                    session.setAttribute(Constants.RESULTS_PER_PAGE, form.num);
                }
            });

                return;
            }
        }

        chain.doFilter(request, response);
    }

    protected Map<String, String[]> getParameterMapFromQueryString(final HttpServletRequest request, final String enc) throws IOException {
        final String queryString = request.getQueryString();
        if (StringUtil.isNotBlank(queryString)) {
            return parseQueryString(queryString, enc);

        }
        return false;
    }

    protected OptionalThing<String[]> getQueryLanguages() {
        return LaRequestUtil.getOptionalRequest().map(request -> ComponentUtil.getFessConfig().getQueryLanguages(request.getLocales(),
                (String[]) request.getAttribute(Constants.REQUEST_LANGUAGES)));
    }

    protected BoolQueryBuilder buildDefaultQueryBuilder(final FessConfig fessConfig, final QueryContext context,

        }
        if (isQuery) {
            LaRequestUtil.getOptionalRequest().ifPresent(request -> {
                highlightedQuerySet = new HashSet<>();
                request.setAttribute(Constants.HIGHLIGHT_QUERIES, highlightedQuerySet);
                fieldLogMap = (Map<String, List<String>>) request.getAttribute(Constants.FIELD_LOGS);
                if (fieldLogMap == null) {

            });
            return null;
        });
        try {
            roleService.store(entity);
        } catch (final Exception e) {
            logger.warn("Failed to process a request.", e);
            throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
        }

            try {
                relatedContentService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;
        }).orElseGet(() -> {

        final WebConfig webConfig = getWebConfig(body).map(entity -> {
            try {
                webConfigService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;
        }).orElseGet(() -> {

            try (InputStream inputStream = form.stemmerOverrideFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsFailedToUploadStemmeroverrideFile(GLOBAL),
                        () -> redirectWith(getClass(), moreUrl("uploadpage/" + form.dictId)));
            }

            try (InputStream inputStream = form.kuromojiFile.getInputStream()) {
                file.update(inputStream);
            } catch (final IOException e) {
                logger.warn("Failed to process a request.", e);
                throwValidationError(messages -> messages.addErrorsFailedToUploadKuromojiFile(GLOBAL),
                        () -> redirectWith(getClass(), moreUrl("uploadpage/" + form.dictId)));
            }