@Override
  public void onPartitionBecomeBootstrapFromPreBootstrap(String partitionName) {
    PartitionStateChangeListener storageManagerListener =
        partitionStateChangeListeners.get(StateModelListenerType.StorageManagerListener);
    if (storageManagerListener != null) {
      storageManagerListener.onPartitionBecomeBootstrapFromPreBootstrap(partitionName);
    }
  }
@return {@link DataNodeConfig} of current participant (The method also checks the existence of the config).
ambry-clustermap/src/main/java/com/github/ambry/clustermap/HelixParticipant.java