@Override
        public String getIndexFieldFiletype() {
            return "filetype";
        }

        @Override
        public String getPasswordInvalidAdminPasswords() {
            return "admin,password,123456";
        }

        @Override
        public String getPluginVersionFilter() {
            return "";
        }

        @Override

        return value != null ? DfTypeUtil.toLong(value) : null;
    }

    String getPasswordInvalidAdminPasswords();

    default boolean isValidAdminPassword(final String password) {
        return !split(getPasswordInvalidAdminPasswords(), "\n")
                .get(stream -> stream.map(String::trim).filter(StringUtil::isNotEmpty).anyMatch(s -> s.equals(password)));
    }

        }

        @Override
        public boolean isUseOwnTmpDir() {
            return useOwnTmpDir;
        }

        @Override
        public String getPasswordInvalidAdminPasswords() {
            return "admin,password,123456";
        }

        @Override
        public String getStorageMaxItemsInPage() {
            return "25";
        }

        @Override

     * The value is, e.g. admin <br>
     * comment: List of invalid admin passwords.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getPasswordInvalidAdminPasswords();

    /**
     * The simple implementation for configuration.
     * @author FreeGen
     */
    public static class SimpleImpl extends FessEnv.SimpleImpl implements FessConfig {