@Override
  public Consumer createConsumer() {
    throw new UnsupportedOperationException("not supported right now");
  }
A factory creates kafka log queue producers or consumers.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/write/hidden/kafka/HiddenKafkaFactory.java