}

        final long startTime = System.currentTimeMillis();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String[] fields = fessConfig.getRagChatContentFields().split(",");

        if (logger.isDebugEnabled()) {
            logger.debug("[RAG] Fetching full content. docIds={}, fields={}", docIds, String.join(",", fields));
        }

        try {