Java tutorial
/** * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ package org.mifosplatform.portfolio.loanaccount.loanschedule.domain; import org.joda.time.Days; import org.joda.time.LocalDate; import org.joda.time.Months; import org.joda.time.Weeks; import org.joda.time.Years; import org.mifosplatform.organisation.holiday.service.HolidayUtil; import org.mifosplatform.organisation.workingdays.domain.RepaymentRescheduleType; import org.mifosplatform.organisation.workingdays.service.WorkingDaysUtil; import org.mifosplatform.portfolio.common.domain.DayOfWeekType; import org.mifosplatform.portfolio.common.domain.PeriodFrequencyType; import org.mifosplatform.portfolio.loanaccount.data.HolidayDetailDTO; public class DefaultScheduledDateGenerator implements ScheduledDateGenerator { @Override public LocalDate getLastRepaymentDate(final LoanApplicationTerms loanApplicationTerms, final HolidayDetailDTO holidayDetailDTO) { final int numberOfRepayments = loanApplicationTerms.getNumberOfRepayments(); LocalDate lastRepaymentDate = loanApplicationTerms.getExpectedDisbursementDate(); boolean isFirstRepayment = true; for (int repaymentPeriod = 1; repaymentPeriod <= numberOfRepayments; repaymentPeriod++) { lastRepaymentDate = generateNextRepaymentDate(lastRepaymentDate, loanApplicationTerms, isFirstRepayment); isFirstRepayment = false; } lastRepaymentDate = adjustRepaymentDate(lastRepaymentDate, loanApplicationTerms, holidayDetailDTO); return lastRepaymentDate; } @Override public LocalDate generateNextRepaymentDate(final LocalDate lastRepaymentDate, final LoanApplicationTerms loanApplicationTerms, boolean isFirstRepayment) { final LocalDate firstRepaymentPeriodDate = loanApplicationTerms .getCalculatedRepaymentsStartingFromLocalDate(); LocalDate dueRepaymentPeriodDate = null; if (isFirstRepayment && firstRepaymentPeriodDate != null) { dueRepaymentPeriodDate = firstRepaymentPeriodDate; } else { dueRepaymentPeriodDate = getRepaymentPeriodDate(loanApplicationTerms.getRepaymentPeriodFrequencyType(), loanApplicationTerms.getRepaymentEvery(), lastRepaymentDate, loanApplicationTerms.getNthDay(), loanApplicationTerms.getWeekDayType()); } return dueRepaymentPeriodDate; } @Override public LocalDate adjustRepaymentDate(final LocalDate dueRepaymentPeriodDate, final LoanApplicationTerms loanApplicationTerms, final HolidayDetailDTO holidayDetailDTO) { LocalDate adjustedDate = dueRepaymentPeriodDate; LocalDate nextDueRepaymentPeriodDate = getRepaymentPeriodDate( loanApplicationTerms.getRepaymentPeriodFrequencyType(), loanApplicationTerms.getRepaymentEvery(), adjustedDate, loanApplicationTerms.getNthDay(), loanApplicationTerms.getWeekDayType()); final RepaymentRescheduleType rescheduleType = RepaymentRescheduleType .fromInt(holidayDetailDTO.getWorkingDays().getRepaymentReschedulingType()); /** * Fix for https://mifosforge.jira.com/browse/MIFOSX-1357 */ // recursively check for the next working meeting day. while (WorkingDaysUtil.isNonWorkingDay(holidayDetailDTO.getWorkingDays(), nextDueRepaymentPeriodDate) && rescheduleType == RepaymentRescheduleType.MOVE_TO_NEXT_REPAYMENT_MEETING_DAY) { nextDueRepaymentPeriodDate = getRepaymentPeriodDate( loanApplicationTerms.getRepaymentPeriodFrequencyType(), loanApplicationTerms.getRepaymentEvery(), nextDueRepaymentPeriodDate, loanApplicationTerms.getNthDay(), loanApplicationTerms.getWeekDayType()); } adjustedDate = WorkingDaysUtil.getOffSetDateIfNonWorkingDay(adjustedDate, nextDueRepaymentPeriodDate, holidayDetailDTO.getWorkingDays()); if (holidayDetailDTO.isHolidayEnabled()) { adjustedDate = HolidayUtil.getRepaymentRescheduleDateToIfHoliday(adjustedDate, holidayDetailDTO.getHolidays()); } return adjustedDate; } @Override public LocalDate getRepaymentPeriodDate(final PeriodFrequencyType frequency, final int repaidEvery, final LocalDate startDate, Integer nthDay, DayOfWeekType dayOfWeek) { LocalDate dueRepaymentPeriodDate = startDate; switch (frequency) { case DAYS: dueRepaymentPeriodDate = startDate.plusDays(repaidEvery); break; case WEEKS: dueRepaymentPeriodDate = startDate.plusWeeks(repaidEvery); break; case MONTHS: dueRepaymentPeriodDate = startDate.plusMonths(repaidEvery); if (!(nthDay == null || dayOfWeek == null || dayOfWeek == DayOfWeekType.INVALID)) { dueRepaymentPeriodDate = adjustToNthWeekDay(dueRepaymentPeriodDate, nthDay, dayOfWeek.getValue()); } break; case YEARS: dueRepaymentPeriodDate = startDate.plusYears(repaidEvery); break; case INVALID: break; } return dueRepaymentPeriodDate; } private LocalDate adjustToNthWeekDay(LocalDate dueRepaymentPeriodDate, int nthDay, int dayOfWeek) { // adjust date to start of month dueRepaymentPeriodDate = dueRepaymentPeriodDate.withDayOfMonth(1); // adjust date to next week if current day is past specified day of // week. if (dueRepaymentPeriodDate.getDayOfWeek() > dayOfWeek) { dueRepaymentPeriodDate = dueRepaymentPeriodDate.plusWeeks(1); } // adjust date to specified date of week dueRepaymentPeriodDate = dueRepaymentPeriodDate.withDayOfWeek(dayOfWeek); // adjust to specified nth week day dueRepaymentPeriodDate = dueRepaymentPeriodDate.plusWeeks(nthDay - 1); return dueRepaymentPeriodDate; } @Override public Boolean isDateFallsInSchedule(final PeriodFrequencyType frequency, final int repaidEvery, final LocalDate startDate, final LocalDate date) { boolean isScheduledDate = false; switch (frequency) { case DAYS: int diff = Days.daysBetween(startDate, date).getDays(); isScheduledDate = (diff % repaidEvery) == 0; break; case WEEKS: int weekDiff = Weeks.weeksBetween(startDate, date).getWeeks(); isScheduledDate = (weekDiff % repaidEvery) == 0; if (isScheduledDate) { LocalDate modifiedDate = startDate.plusWeeks(weekDiff); isScheduledDate = modifiedDate.isEqual(date); } break; case MONTHS: int monthDiff = Months.monthsBetween(startDate, date).getMonths(); isScheduledDate = (monthDiff % repaidEvery) == 0; if (isScheduledDate) { LocalDate modifiedDate = startDate.plusMonths(monthDiff); isScheduledDate = modifiedDate.isEqual(date); } break; case YEARS: int yearDiff = Years.yearsBetween(startDate, date).getYears(); isScheduledDate = (yearDiff % repaidEvery) == 0; if (isScheduledDate) { LocalDate modifiedDate = startDate.plusYears(yearDiff); isScheduledDate = modifiedDate.isEqual(date); } break; case INVALID: break; } return isScheduledDate; } @Override public LocalDate idealDisbursementDateBasedOnFirstRepaymentDate( final PeriodFrequencyType repaymentPeriodFrequencyType, final int repaidEvery, final LocalDate firstRepaymentDate) { LocalDate idealDisbursementDate = null; switch (repaymentPeriodFrequencyType) { case DAYS: idealDisbursementDate = firstRepaymentDate.minusDays(repaidEvery); break; case WEEKS: idealDisbursementDate = firstRepaymentDate.minusWeeks(repaidEvery); break; case MONTHS: idealDisbursementDate = firstRepaymentDate.minusMonths(repaidEvery); break; case YEARS: idealDisbursementDate = firstRepaymentDate.minusYears(repaidEvery); break; case INVALID: break; } return idealDisbursementDate; } @Override public LocalDate generateNextScheduleDateStartingFromDisburseDate(LocalDate lastRepaymentDate, LoanApplicationTerms loanApplicationTerms, final HolidayDetailDTO holidayDetailDTO) { LocalDate generatedDate = loanApplicationTerms.getExpectedDisbursementDate(); boolean isFirstRepayment = true; while (!generatedDate.isAfter(lastRepaymentDate)) { generatedDate = generateNextRepaymentDate(generatedDate, loanApplicationTerms, isFirstRepayment); isFirstRepayment = false; } generatedDate = adjustRepaymentDate(generatedDate, loanApplicationTerms, holidayDetailDTO); return generatedDate; } }