public static DateValue parseDateString(String dateString) {
if (dateString == null) return null;
DateValue dv = new DateValue();
if (dateString.length() == 4) {
dv.setYearString(dateString);
return dv;
}
if (dateString.indexOf('/') < 0)
throw new RuntimeException(
"Unknown format, expected format is 'mm/dd/yyyy' or 'mm/yyyy' or 'yyyy'");
String[] dateParts = dateString.split("/");
int size = dateParts.length;
// validate year
if (dateParts[size - 1].length() != 4)
throw new RuntimeException(
"Unknown format, expected format is 'mm/dd/yyyy' or 'mm/yyyy' or 'yyyy'");
if (size == 2) {
if (dateParts[0].length() != 2)
throw new RuntimeException(
"Unknown format, expected format is 'mm/dd/yyyy' or 'mm/yyyy' or 'yyyy'");
dv.setMonthString(dateParts[0]);
dv.setYearString(dateParts[1]);
} else if (size == 3) {
if (dateParts[0].length() != 2)
throw new RuntimeException(
"Unknown format, expected format is 'mm/dd/yyyy' or 'mm/yyyy' or 'yyyy'");
if (dateParts[1].length() != 2)
throw new RuntimeException(
"Unknown format, expected format is 'mm/dd/yyyy' or 'mm/yyyy' or 'yyyy'");
dv.setMonthString(dateParts[0]);
dv.setDayString(dateParts[1]);
dv.setYearString(dateParts[2]);
} else {
return null;
}
return dv;
}
