Swing/LocalDateFilter のバックアップ(No.1)

public RowFilter<TableModel, Integer> makeRowFilter(String selected) {
  switch (selected) {
    case "within 3 days before":
      return new LocalDateFilter(realLocalDate.minusDays(3).plusDays(1), realLocalDate, 0);
    case "within 1 week before":
      return new LocalDateFilter(realLocalDate.minusWeeks(1).plusDays(1), realLocalDate, 0);
    case "1 week before and after":
      return new LocalDateFilter(realLocalDate.minusDays(3), realLocalDate.plusDays(3), 0);
    case "within 1 week after":
      return new LocalDateFilter(realLocalDate, realLocalDate.plusWeeks(1).minusDays(1), 0);
    default:
      return null;
  }
}

class LocalDateFilter extends RowFilter<TableModel, Integer> {
  private final LocalDate startDate;
  private final LocalDate endDate;
  private final int column;

  protected LocalDateFilter(LocalDate startDate, LocalDate endDate, int column) {
    super();
    this.startDate = startDate;
    this.endDate = endDate;
    this.column = column;
  }

  @Override public boolean include(Entry<? extends TableModel, ? extends Integer> entry) {
    Object v = entry.getModel().getValueAt(entry.getIdentifier(), column);
    if (v instanceof LocalDate) {
      LocalDate date = (LocalDate) v;
      return !(startDate.isAfter(date) || endDate.isBefore(date));
    }
    return false;
  }
}