public SchemaMapping fromArrow(Schema arrowSchema) {
    List<Field> fields = arrowSchema.getFields();
    List<TypeMapping> parquetFields = fromArrow(fields);
    MessageType parquetType =
        addToBuilder(parquetFields, Types.buildMessage()).named("root");
    return new SchemaMapping(arrowSchema, parquetType, parquetFields);
  }
@Test(expected = UnsupportedOperationException.class)
  public void testArrowTimeSecondToParquet() {
    converter
        .fromArrow(new Schema(asList(field("a", new ArrowType.Time(TimeUnit.SECOND, 32)))))
        .getParquetSchema();
  }