public void addCalculationConfiguration(String viewCalcConf) {
    CalculationConfiguration calcConf = getCalculationConfiguration(viewCalcConf);
    if (calcConf != null) {
      throw new IllegalStateException("Already has calc conf " + viewCalcConf);
    }

    calcConf = new CalculationConfiguration();
    calcConf.setName(viewCalcConf);
    calcConf.setRiskRun(this);
    _calculationConfigurations.add(calcConf);
  }