if (pattern.matcher(input).matches()) {
                return Constants.FALSE;
            }
        }

        return Constants.TRUE;
    }

    protected synchronized void initDocUrlPattern() {

        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        if (includedDocUrlPatterns == null) {
            if (StringUtil.isNotBlank(getIncludedDocUrls())) {

            return false;
        }
        return true;
    }

    public Set<String> getMatchedLabelValueSet(final String path) {
        if (labelTypePatternList == null) {
            synchronized (this) {
                if (labelTypePatternList == null) {
                    buildLabelTypePatternList(ComponentUtil.getComponent(LabelTypeService.class).getLabelTypeList());
                }
            }

            return OptionalThing.empty();
        }
        return OptionalThing.of(pipeline);
    }

    public void refresh() {
        crawlingConfigCache.invalidateAll();
    }

    public synchronized String store(final String sessionId, final CrawlingConfig crawlingConfig) {
        final String sessionCountId = sessionId + "-" + count;
        crawlingConfigMap.put(sessionCountId, crawlingConfig);
        count++;

    }

    protected void registerModifiedProperty(String propertyName) {
        __modifiedProperties.addPropertyName(propertyName);
        registerSpecifiedProperty(propertyName); // synchronize if exists, basically for user's manual call
    }

    public void modifiedToSpecified() {
        if (__modifiedProperties.isEmpty()) {

    }

    @Override
    public synchronized void insert(final StemmerOverrideItem item) {
        try (StemmerOverrideUpdater updater = new StemmerOverrideUpdater(item)) {
            reload(updater);
        }
    }

    @Override
    public synchronized void update(final StemmerOverrideItem item) {

    }

    @Override
    public synchronized void insert(final SynonymItem item) {
        try (SynonymUpdater updater = new SynonymUpdater(item)) {
            reload(updater);
        }
    }

    @Override
    public synchronized void update(final SynonymItem item) {
        try (SynonymUpdater updater = new SynonymUpdater(item)) {

                logger.info("Stopping all crawler.");
            }
            forceStop();
        }
    }

    public void addFinishedSessionId(final String sessionId) {
        synchronized (finishedSessionIdList) {
            finishedSessionIdList.add(sessionId);
        }
    }

    private void deleteBySessionId(final String sessionId) {
        try {

        final int idx = sessionId.indexOf('-');
        if (idx >= 0) {
            return sessionId.substring(0, idx);
        }
        return sessionId;
    }

    public synchronized void store(final String sessionId, final boolean create) {
        CrawlingInfo crawlingInfo = create ? null : getCrawlingInfoService().getLast(sessionId);
        if (crawlingInfo == null) {

        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final CrawlerStatsHelper crawlerStatsHelper = ComponentUtil.getCrawlerStatsHelper();
        synchronized (indexUpdateCallback) {
            // required check
            if (!dataMap.containsKey(fessConfig.getIndexFieldUrl()) || dataMap.get(fessConfig.getIndexFieldUrl()) == null) {

    }

    @Override
    public synchronized void insert(final CharMappingItem item) {
        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);
        }
    }

    @Override
    public synchronized void update(final CharMappingItem item) {
        try (MappingUpdater updater = new MappingUpdater(item)) {