public Set<String> getAllTopicName() {
        Set<String> result = new HashSet<>();
        // add default topics first
        if (CommonConfigHolder.getInstance().isEnableUnConfigTopicAccept()) {
            result.addAll(CommonConfigHolder.getInstance().getDefTopics());
        }
        // add configured topics
        for (IdTopicConfig topicConfig : id2TopicSrcMap.values()) {
            if (topicConfig == null) {
                continue;
            }
            result.add(topicConfig.getTopicName());
        }
        return result;
    }
get topic by groupId and streamId
inlong-dataproxy/dataproxy-source/src/main/java/org/apache/inlong/dataproxy/config/holder/MetaConfigHolder.java