@Override
  @NotNull
  public SchemaType getOutputType() {
    if (myOutputRng.isSelected()) {
      return SchemaType.RNG;
    } else if (myOutputRnc.isSelected()) {
      return SchemaType.RNC;
    } else if (myOutputXsd.isSelected()) {
      return SchemaType.XSD;
    } else {
      assert myOutputDtd.isSelected();
      return SchemaType.DTD;
    }
  }
@Override
  @NotNull
  public SchemaType getOutputType()