@Override
  public final void process(
      final TsFileInsertionEvent tsFileInsertionEvent, final EventCollector eventCollector)
      throws Exception {
    throw new UnsupportedOperationException(
        "The abstract formal processor does not support process events");
  }
{@link AbstractFormalProcessor} is a formal {@link PipeProcessor} that does not support data
processing. It is mainly used as a configurable plugin for other {@link PipePlugin}s that can be
dynamically loaded into IoTDB.
iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/processor/aggregate/AbstractFormalProcessor.java