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Additional functionality that enhances JSR-310 dates and times in Java SE 8 and later
/*
* Copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* * Neither the name of JSR-310 nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.threeten.extra.chrono;
import java.time.DateTimeException;
import java.time.DayOfWeek;
import java.time.Month;
/**
* Builder to create Accounting calendars.
*
* Accounting calendars require setup before use, given how they are used.
* The following information is required:
*
* - ending day-of-week - The day-of-week on which a given accounting year ends.
*
- last-in-month vs. nearest-end-of-month - Whether the ending day-of-week is the last in the month,
* or the nearest to the end of the month (will sometimes be in the next month.
*
- month end - Which Gregorian/ISO end-of-month the year ends in/is nearest to.
*
- year division - How many 'months' (periods) to divide the accounting year into,
* and how many weeks are in each.
*
- leap-week month - Which month will have the leap 'week' added to it.
* In practice this is probably the last one, but this does not seem to be required.
*
*
* There are approximately 7 x 2 x 12 x 4 x 12/13 = 4032 combinations.
*
*
Implementation Requirements
* This class is a mutable builder suitable for use from a single thread.
*/
public final class AccountingChronologyBuilder {
/**
* The day of the week on which a given Accounting year ends.
*/
private DayOfWeek endsOn;
/**
* Whether the calendar ends in the last week of a given Gregorian/ISO month,
* or nearest to the last day of the month (will sometimes be in the next month).
*/
private boolean inLastWeek;
/**
* Which Gregorian/ISO end-of-month the year ends in/is nearest to.
*/
private Month end;
/**
* How to divide an accounting year.
*/
private AccountingYearDivision division;
/**
* The month which will have the leap-week added.
*/
private int leapWeekInMonth;
/**
* Constructs a new instance of the builder.
*/
public AccountingChronologyBuilder() {
// Nothing to setup in the constructor.
}
/**
* Sets the day-of-week on which a given Accounting calendar year ends.
*
* @param endsOn The day-of-week on which a given Accounting calendar year ends.
*
* @return this, for chaining, not null.
*/
public AccountingChronologyBuilder endsOn(DayOfWeek endsOn) {
this.endsOn = endsOn;
return this;
}
/**
* Sets the Gregorian/ISO month-end which a given Accounting calendar year ends nearest to.
* Calendars setup this way will occasionally end in the start of the next month.
* For example, for July, the month ends on any day from July 28th to August 3rd.
*
* @param end The Gregorian/ISO month-end a given Accounting calendar year ends nearest to.
*
* @return this, for chaining, not null.
*/
public AccountingChronologyBuilder nearestEndOf(Month end) {
this.inLastWeek = false;
this.end = end;
return this;
}
/**
* Sets the Gregorian/ISO month-end in which a given Accounting calendar year ends.
* Calendars setup this way will always end in the last week of the given month.
* For example, for July, the month ends on any day from July 25th to July 31st.
*
* @param end The Gregorian/ISO month-end a given Accounting calendar year ends in the last week of.
*
* @return this, for chaining, not null.
*/
public AccountingChronologyBuilder inLastWeekOf(Month end) {
this.inLastWeek = true;
this.end = end;
return this;
}
/**
* Sets how a given Accounting year will be divided.
*
* @param division How to divide a given calendar year.
*
* @return this, for chaining, not null.
*/
public AccountingChronologyBuilder withDivision(AccountingYearDivision division) {
this.division = division;
return this;
}
/**
* Sets the month in which the leap-week occurs.
*
* @param leapWeekInMonth The month in which the leap-week occurs.
*
* @return this, for chaining, not null.
*/
public AccountingChronologyBuilder leapWeekInMonth(int leapWeekInMonth) {
this.leapWeekInMonth = leapWeekInMonth;
return this;
}
/**
* Completes this builder by creating the {@code AccountingChronology}.
*
* @return the created chronology, not null.
* @throws DateTimeException if the chronology cannot be built.
*/
public AccountingChronology toChronology() {
return AccountingChronology.create(endsOn, end, inLastWeek, division, leapWeekInMonth);
}
}