private static class TestFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;

        @Override
        public String getIndexConfigIndex() {
            return "fess_config";
        }

        @Override
        public String getIndexUserIndex() {
            return "fess_user";
        }

        @Override

                    index = fessConfig.getIndexConfigIndex();
                } else if ("fess_user".equals(index)) {
                    index = fessConfig.getIndexUserIndex();
                } else if ("fess_basic_config".equals(index) && !"fess_config".equals(fessConfig.getIndexConfigIndex())) {
                    index = "basic_" + fessConfig.getIndexConfigIndex();
                }

     */
    protected String getIndexName() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return INDEX_NAME.replaceFirst("fess_config", fessConfig.getIndexConfigIndex());
    }

    // ===================================================================================
    //                                                                         JSON Util