@Override
  public String getFlowExecUrl() {
    return Utils.formatStringOrNull("%s/admin/airflow/graph?dag_id=%s&execution_date=%s", _baseUrl, _dagId, _dagRunExecutionDate);
  }
This class provides methods to load information specific to the Airflow scheduler.
app/com/linkedin/drelephant/schedulers/AirflowScheduler.java