* @return The value of found property. (NotNull: if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    String get(String propertyKey);

    /**
     * Is the property true?
     * @param propertyKey The key of the property which is boolean type. (NotNull)
     * @return The determination, true or false. (if not found, exception)

        assertUrlLink("ftp:/home/taro/%E3%81%82.txt", //
                "file://home/taro/%E3%81%82.txt");

        assertUrlLink(null, "#not-found-docId");
        assertUrlLink("", "#not-found-docId");
        assertUrlLink(" ", "#not-found-docId");
    }

    private void assertUrlLink(String url, String expected) {
        Map<String, Object> doc = new HashMap<>();
        doc.put("doc_id", "docId");

            dataStore = dataStoreFactory.getDataStore(dataConfig.getHandlerName());
            if (dataStore == null) {
                logger.error("DataStore({}) is not found.", dataConfig.getHandlerName());
            } else {
                try {
                    dataStore.store(dataConfig, indexUpdateCallback, initParamMap);
                } catch (final Throwable e) {

        if (docList.isEmpty()) {
            return null;
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Found documents: {}", docList);
        }
        final Set<RequestData> urlSet = new HashSet<>(docList.size());
        for (final Map<String, Object> doc : docList) {

labels.error_title=エラー
labels.system_error_title=システムエラー
labels.contact_site_admin=サイト管理者にお問い合わせください。
labels.request_error_title=リクエスト形式が正しくありません。
labels.bad_request=URLへのリクエストが正しくありません。
labels.page_not_found_title=ページが見つかりません。
labels.check_url=URLを確認してください。
labels.user_name=ユーザー名
labels.login=ログイン
labels.login.placeholder_username=ユーザー名
labels.login.placeholder_password=パスワード
labels.login.title=ログイン

                                } else if (logger.isDebugEnabled()) {
                                    logger.debug("Snapshot name is not found: {}/{}", name, version);
                                }
                            } else {
                                list.add(new Artifact(name, version, pluginUrl + version + "/" + name + "-" + version + ".jar"));

        String url = DocumentUtil.getValue(document, fessConfig.getIndexFieldUrl(), String.class);

        if (StringUtil.isBlank(url)) {
            return "#not-found-" + DocumentUtil.getValue(document, fessConfig.getIndexFieldDocId(), String.class);
        }

        final boolean isSmbUrl = url.startsWith("smb:") || url.startsWith("smb1:");

labels.error_title=Fehler
labels.system_error_title=Systemfehler
labels.contact_site_admin=Kontaktiere den Seitenadmin.
labels.request_error_title=Fehlerhafte Anfrage.
labels.bad_request=Ungültige Anfrage für die URL.
labels.page_not_found_title=Seite nicht gefunden
labels.check_url=Prüfe die URL.
labels.user_name=Benutzername
labels.login=Anmelden
labels.login.placeholder_username=Benutzername
labels.login.placeholder_password=Passwort

labels.system_error_title	=	Erreur système
labels.contact_site_admin	=	Contactez l'administrateur du site.
labels.request_error_title	=	Mauvaise requête
labels.bad_request	=	Requête invalide pour l'URL.
labels.page_not_found_title	=	Page non trouvée
labels.check_url	=	Vérifiez l'URL.
labels.user_name	=	Nom d'utilisateur
labels.login	=	Connexion
labels.login.placeholder_username	=	Nom d'utilisateur

        }
        if (baseDir.mkdirs()) {
            logger.info("Created: {}", baseDir.getAbsolutePath());
        }
        if (!baseDir.isDirectory()) {
            throw new FessSystemException("Not found: " + baseDir.getAbsolutePath());
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Thumbnail Directory: {}", baseDir.getAbsolutePath());
        }