/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.analytics.financial.schedule;
import java.util.ArrayList;
import java.util.List;
import org.threeten.bp.LocalDate;
import org.threeten.bp.ZonedDateTime;
import org.threeten.bp.temporal.TemporalAdjusters;
import com.opengamma.util.ArgumentChecker;
/**
*
*/
public class FirstOfMonthScheduleCalculator extends Schedule {
@Override
public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate, final boolean fromEnd, final boolean generateRecursive) {
return getSchedule(startDate, endDate);
}
public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate) {
ArgumentChecker.notNull(startDate, "start date");
ArgumentChecker.notNull(endDate, "end date");
ArgumentChecker.isFalse(startDate.isAfter(endDate), "start date must not be after end date");
if (startDate.equals(endDate)) {
if (startDate.getDayOfMonth() == 1) {
return new LocalDate[] {startDate};
}
throw new IllegalArgumentException("Start date and end date were the same but neither was the first day of the month");
}
final List<LocalDate> dates = new ArrayList<>();
LocalDate date = startDate.with(TemporalAdjusters.firstDayOfMonth());
if (date.isBefore(startDate)) {
date = date.plusMonths(1);
}
while (!date.isAfter(endDate)) {
dates.add(date);
date = date.plusMonths(1);
}
return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
}
@Override
public ZonedDateTime[] getSchedule(final ZonedDateTime startDate, final ZonedDateTime endDate, final boolean fromEnd, final boolean generateRecursive) {
return getSchedule(startDate, endDate);
}
public ZonedDateTime[] getSchedule(final ZonedDateTime startDate, final ZonedDateTime endDate) {
ArgumentChecker.notNull(startDate, "start date");
ArgumentChecker.notNull(endDate, "end date");
ArgumentChecker.isFalse(startDate.isAfter(endDate), "start date must not be after end date");
if (startDate.equals(endDate)) {
if (startDate.getDayOfMonth() == 1) {
return new ZonedDateTime[] {startDate};
}
throw new IllegalArgumentException("Start date and end date were the same but neither was the first day of the month");
}
final List<ZonedDateTime> dates = new ArrayList<>();
ZonedDateTime date = startDate.with(TemporalAdjusters.firstDayOfMonth());
if (date.isBefore(startDate)) {
date = date.plusMonths(1);
}
while (!date.isAfter(endDate)) {
dates.add(date);
date = date.plusMonths(1);
}
return dates.toArray(EMPTY_ZONED_DATE_TIME_ARRAY);
}
}