@Override
    public synchronized void stop() {
        super.stop();
        // Nothing to do since this doesn't maintain any outstanding connections/data
        log.info("Stopped FileOffsetBackingStore");
    }
Implementation of OffsetBackingStore that saves data locally to a file. To ensure this behaves
similarly to a real backing store, operations are executed asynchronously on a background thread.
The offset position can be specified
inlong-agent/agent-plugins/src/main/java/org/apache/inlong/agent/plugin/utils/InLongFileOffsetBackingStore.java