Populating a Holiday Table

Our company has a Java service which determines if a date is a holiday, but we were working on some reports that needed that data in a database. So the following groovy script was used to populate a holiday table for the holidays for the remainder of the century.

def sql= new Sql(datasource)

def dateString = '20100101'
def date = Date.parse('yyyyMMdd', dateString)

while (dateString < '20991231') {
  if (HolidayService.isDayOffDueToHoliday(dateString)) {
    sql.execute '''INSERT INTO HOLIDAYS (HOLIDAY_DATE)
                   VALUES (?, 'E010152')''',
          date.format('yyyy-MM-dd')
  }

  date = date.next()
  dateString = date.format('yyyyMMdd')
}