package pl.edu.icm.saos.search.analysis.solr.result;
import org.joda.time.LocalDate;
import org.springframework.stereotype.Service;
import pl.edu.icm.saos.search.analysis.request.Period;
import pl.edu.icm.saos.search.analysis.request.Period.PeriodUnit;
import pl.edu.icm.saos.search.analysis.request.XDateRange;
import pl.edu.icm.saos.search.analysis.request.XSettings;
/**
* A utility service with methods used in converting facet values.
*
* @author Łukasz Dumiszewski
*/
@Service("xdateRangeUtils")
class XDateRangeUtils {
//------------------------ LOGIC --------------------------
/**
* Returns {@link XDateRange} from the passed xsettings if {@link XSettings#getRange()} is
* instance of {@link XDateRange}. Returns null otherwise.
*
*/
public XDateRange getDateRange(XSettings xsettings) {
if (xsettings.getRange() instanceof XDateRange) {
return (XDateRange)xsettings.getRange();
}
return null;
}
/**
* Generates and returns the end date of the period based on the given startDate and period. Does not change the passed date.
*/
public LocalDate generateEndDate(LocalDate startDate, Period period) {
if (period.getUnit().equals(PeriodUnit.DAY)) {
return startDate.plusDays(period.getValue()-1);
}
if (period.getUnit().equals(PeriodUnit.MONTH)) {
return startDate.plusMonths(period.getValue()).minusDays(1);
}
if (period.getUnit().equals(PeriodUnit.YEAR)) {
return startDate.plusYears(period.getValue()).minusDays(1);
}
throw new IllegalArgumentException("Period unit " + period.getUnit() + " not handled");
}
}