* @param username the username to search for
     * @return an OptionalEntity containing the user if found
     */
    public OptionalEntity<User> getUserByName(final String username) {
        return userBhv.selectEntity(cb -> {
            cb.query().setName_Equal(username);
        });
    }

    /**
     * Stores (inserts or updates) a user in the system.
     * Handles user authentication setup and database persistence.

                            .get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
                    ElevateWord elevateWord = elevateWordBhv.selectEntity(cb -> {
                        cb.query().setSuggestWord_Equal(suggestWord);
                        if (permissions.length > 0) {

            return null;
        }

        final FailureUrlBhv bhv = ComponentUtil.getComponent(FailureUrlBhv.class);
        final FailureUrl failureUrl = bhv.selectEntity(cb -> {
            cb.query().setUrl_Equal(url);
            if (crawlingConfig != null) {
                cb.query().setConfigId_Equal(crawlingConfig.getConfigId());
            }
        }).map(entity -> {

        final String token = ComponentUtil.getAccessTokenHelper().getAccessTokenFromRequest(request);
        if (StringUtil.isNotBlank(token)) {
            return accessTokenBhv.selectEntity(cb -> {
                cb.query().setToken_Term(token);
            }).map(accessToken -> {
                final Set<String> permissionSet = new HashSet<>();

     * @return an optional entity containing the found user, or empty if not found
     */
    @Override
    protected OptionalEntity<FessUser> doFindLoginUser(final String username) {
        return userBhv.selectEntity(cb -> {
            cb.query().setName_Equal(username);
        }).map(user -> (FessUser) user);
    }

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

                        targetWord = targetWord.substring(2);
                    }
                    final String target = targetWord;
                    BadWord badWord = badWordBhv.selectEntity(cb -> cb.query().setSuggestWord_Equal(target)).orElse(null);//TODO
                    final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
                    if (isDelete) {

            while ((list = csvReader.readValues()) != null) {
                try {
                    final String sessionId = list.get(0);
                    CrawlingInfo crawlingInfo = crawlingInfoBhv.selectEntity(cb -> {
                        cb.query().setSessionId_Equal(sessionId);
                        cb.specify().columnSessionId();
                    }).orElse(null);//TODO
                    if (crawlingInfo == null) {

            if (clickLog != null) {
                try {
                    final SearchLogBhv searchLogBhv = ComponentUtil.getComponent(SearchLogBhv.class);
                    searchLogBhv.selectEntity(cb -> {
                        cb.query().setQueryId_Equal(clickLog.getQueryId());
                    }).ifPresent(entity -> {
                        clickLogList.add(clickLog);