public KafkaIdConfig getIdConfig(String uid) {
        KafkaIdConfig idConfig = this.idConfigMap.get(uid);
        if (idConfig == null) {
            throw new NullPointerException("uid " + uid + "got null KafkaIdConfig");
        }
        return idConfig;
    }
get KafkaIdConfig by uid

@param  uid uid
@return     KafkaIdConfig
inlong-sort-standalone/sort-standalone-source/src/main/java/org/apache/inlong/sort/standalone/sink/kafka/KafkaFederationSinkContext.java