public List<Integer> getWorkingBrokerIdList() {
        List<Integer> tmpBrokerIdList = new ArrayList<>();
        if (workingList != null) {
            for (BrokerInfo brokerInfo : workingList) {
                tmpBrokerIdList.add(brokerInfo.getBrokerId());
            }
        }
        return tmpBrokerIdList;
    }
Get all working broker id list.
inlong-manager/manager-pojo/src/main/java/org/apache/inlong/manager/pojo/queue/tubemq/TubeBrokerInfo.java