package net.sourceforge.fenixedu.util.date;

import org.apache.commons.lang.StringUtils;
import org.joda.time.DateTimeFieldType;
import org.joda.time.LocalDate;
import org.joda.time.YearMonthDay;

public class SerializationTool {

    public static String yearMonthDaySerialize(final YearMonthDay yearMonthDay) {
	if (yearMonthDay != null) {
	    final String dateString = String.format("%d-%02d-%02d", yearMonthDay.get(DateTimeFieldType.year()), yearMonthDay
		    .get(DateTimeFieldType.monthOfYear()), yearMonthDay.get(DateTimeFieldType.dayOfMonth()));
	    return dateString.length() != 10 ? null : dateString;
	}
	return null;
    }

    public static YearMonthDay yearMonthDayDeserialize(String string) {
	if (!StringUtils.isEmpty(string)) {
	    int year = Integer.parseInt(string.substring(0, 4));
	    int month = Integer.parseInt(string.substring(5, 7));
	    int day = Integer.parseInt(string.substring(8, 10));
	    return year == 0 || month == 0 || day == 0 ? null : new YearMonthDay(year, month, day);
	}
	return null;
    }
}