return null;
        });
    }

    private OptionalThing<HttpSession> getSession() {
        final HttpSession session = request.getSession(false);
        if (session != null) {
            return OptionalEntity.of(session);
        }
        return OptionalEntity.empty();
    }

        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 doSearch(form);
    }

    @Execute

    }

    @Override
    public String execute() {
        final StringBuilder resultBuf = new StringBuilder();

        if (sessionId == null) { // create session id
            sessionId = RandomStringUtils.randomAlphabetic(15);
        }
        resultBuf.append("Session Id: ").append(sessionId).append("\n");
        if (jobExecutor != null) {

            final String sid = ComponentUtil.getCrawlingConfigHelper().store(sessionId, dataConfig);
            sessionIdList.add(sid);

            initParamMap.put(Constants.SESSION_ID, sessionId);
            initParamMap.put(Constants.CRAWLING_INFO_ID, sid);

            final DataCrawlingThread dataCrawlingThread = new DataCrawlingThread(dataConfig, indexUpdateCallback, initParamMap);

    /**
     * {@inheritDoc} <br>
     * Application Origin Methods:
     * <pre>
     * <span style="font-size: 130%; color: #553000">[Small Helper]</span>
     * o saveInfo() <span style="color: #3F7E5E">// save messages to session</span>
     * o write() <span style="color: #3F7E5E">// write text to specified file</span>
     * o copyBeanToBean() <span style="color: #3F7E5E">// copy bean to bean by BeanUtil</span>

    @Resource
    public SearchEngineClient searchEngineClient;

    protected static class Options {
        @Option(name = "-s", aliases = "--sessionId", metaVar = "sessionId", usage = "Session ID")
        protected String sessionId;

        @Option(name = "-n", aliases = "--name", metaVar = "name", usage = "Name")
        protected String name;

labels.crawling_info_configuration=クロール情報
labels.crawling_info_search=検索
labels.crawling_info_reset=リセット
labels.crawling_info_link_top=クロール情報
labels.crawling_info_link_details=詳細
labels.crawling_info_session_id_search=セッションID
labels.crawling_info_session_id=セッションID
labels.crawling_info_created_time=作成
labels.crawling_info_delete_all_link=すべて削除
labels.crawling_info_delete_all_confirmation=本当にすべてを削除しますか？
labels.crawling_info_delete_all_cancel=キャンセル

        final List<Map<String, Object>> resList = new ArrayList<>();
        for (Map<String, Object> elem : logList) {
            logger.info("config_id: {}, session_id: {}", configId, elem.get("session_id"));
            if (elem.containsKey("session_id") && elem.get("session_id").equals(configId.replace('-', '_'))) {
                resList.add(elem);
            }
        }
        return resList;
    }

            return true;
        }
        return false;
    }

    protected void buildFormParams(final SearchForm form) {

        final HttpSession session = request.getSession(false);
        if (session != null) {
            final Object resultsPerPage = session.getAttribute(Constants.RESULTS_PER_PAGE);
            if (resultsPerPage instanceof Integer) {
                form.num = (Integer) resultsPerPage;
            }

        }).ifPresent(p -> searchRequestBuilder.setPreference(p)).orElse(() -> LaRequestUtil.getOptionalRequest().map(r -> {
            final HttpSession session = r.getSession(false);
            if (session != null) {
                return session.getId();
            }
            final String preference = r.getParameter("preference");
            if (preference != null) {