com.opengamma.analytics.financial.schedule.QuarterlyScheduleCalculator.java Source code

Introduction

Here is the source code for com.opengamma.analytics.financial.schedule.QuarterlyScheduleCalculator.java

Source

/**
 * 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.Collections;
import java.util.List;

import javax.time.calendar.LocalDate;
import javax.time.calendar.Period;
import javax.time.calendar.ZonedDateTime;

import org.apache.commons.lang.Validate;

/**
 * 
 */
public class QuarterlyScheduleCalculator extends Schedule {

    @Override
    public LocalDate[] getSchedule(final LocalDate startDate, final LocalDate endDate, final boolean fromEnd,
            final boolean generateRecursive) {
        Validate.notNull(startDate, "start date");
        Validate.notNull(endDate, "end date");
        Validate.isTrue(startDate.isBefore(endDate) || startDate.equals(endDate));
        if (startDate.equals(endDate)) {
            return new LocalDate[] { startDate };
        }
        final List<LocalDate> dates = new ArrayList<LocalDate>();
        if (fromEnd) {
            LocalDate date = endDate;
            int i = 3;
            while (!date.isBefore(startDate)) {
                dates.add(date);
                date = generateRecursive ? date.minus(Period.ofMonths(3)) : endDate.minus(Period.ofMonths(i));
                i += 3;
            }
            Collections.reverse(dates);
            return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
        }
        LocalDate date = startDate;
        int i = 3;
        while (!date.isAfter(endDate)) {
            dates.add(date);
            date = generateRecursive ? date.plus(Period.ofMonths(3)) : startDate.plus(Period.ofMonths(i));
            i += 3;
        }
        return dates.toArray(EMPTY_LOCAL_DATE_ARRAY);
    }

    @Override
    public ZonedDateTime[] getSchedule(final ZonedDateTime startDate, final ZonedDateTime endDate,
            final boolean fromEnd, final boolean generateRecursive) {
        Validate.notNull(startDate, "start date");
        Validate.notNull(endDate, "end date");
        Validate.isTrue(startDate.isBefore(endDate) || startDate.equals(endDate));
        if (startDate.equals(endDate)) {
            return new ZonedDateTime[] { startDate };
        }
        final List<ZonedDateTime> dates = new ArrayList<ZonedDateTime>();
        if (fromEnd) {
            ZonedDateTime date = endDate;
            int i = 3;
            while (!date.isBefore(startDate)) {
                dates.add(date);
                date = generateRecursive ? date.minus(Period.ofMonths(3)) : endDate.minus(Period.ofMonths(i));
                i += 3;
            }
            Collections.reverse(dates);
            return dates.toArray(EMPTY_ZONED_DATE_TIME_ARRAY);
        }
        ZonedDateTime date = startDate;
        int i = 3;
        while (!date.isAfter(endDate)) {
            dates.add(date);
            date = generateRecursive ? date.plus(Period.ofMonths(3)) : startDate.plus(Period.ofMonths(i));
            i += 3;
        }
        return dates.toArray(EMPTY_ZONED_DATE_TIME_ARRAY);
    }

}