public static void saveInfo(InlongStreamInfo streamInfo, String keyName, String keyValue,
            List<InlongStreamExtInfo> extInfoList) {
        InlongStreamExtInfo extInfo = new InlongStreamExtInfo();
        extInfo.setInlongGroupId(streamInfo.getInlongGroupId());
        extInfo.setInlongStreamId(streamInfo.getInlongStreamId());
        extInfo.setKeyName(keyName);
        extInfo.setKeyValue(keyValue);
        extInfoList.add(extInfo);
    }
Save stream ext info into list.
inlong-manager/manager-plugins/base/src/main/java/org/apache/inlong/manager/plugin/util/FlinkUtils.java