public String getSimpleInfo() {
        if (this.port == TBaseConstants.META_DEFAULT_BROKER_PORT) {
            return this.simpleInfo;
        } else {
            return this.fullInfo;
        }
    }
The BrokerInfo hold basic info of an tube broker the brokerId, the broker host
and the port and so on.
inlong-tubemq/tubemq-core/src/main/java/org/apache/inlong/tubemq/corebase/cluster/BrokerInfo.java