how to load customer Listener on spark

[idealspark]

first I customer a org.apache.iceberg.events.Listener then package it to a jar, but how to load my listener when spark start?

I need register my Listener on Iceberg Listeners

[felixYyu]

e.g.

  private CreateSnapshotEvent currentEvent;

  public TestCreateSnapshotEvent(int formatVersion) {
    super(formatVersion);
    Listeners.register(new MyListener(), CreateSnapshotEvent.class);
  }

class MyListener implements Listener<CreateSnapshotEvent> {
    @Override
    public void notify(CreateSnapshotEvent event) {
      currentEvent = event;
    }
  }

[idealspark]

e.g.

  private CreateSnapshotEvent currentEvent;

  public TestCreateSnapshotEvent(int formatVersion) {
    super(formatVersion);
    Listeners.register(new MyListener(), CreateSnapshotEvent.class);
  }

class MyListener implements Listener<CreateSnapshotEvent> {
    @Override
    public void notify(CreateSnapshotEvent event) {
      currentEvent = event;
    }
  }

thank you for reply.
I resolved this by spark listener, after later i will give a example