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PlantUML is a component that allows to quickly write diagrams from text.
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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
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*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the Apache Software License.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
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* messages are usually generated on welcome or error images and never on
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* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
* are owned by the author of their corresponding sources code (that is, their
* textual description in PlantUML language). Those images are not covered by
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*
* The generated images can then be used without any reference to the APACHE license.
* It is not even necessary to stipulate that they have been generated with PlantUML,
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*
* Icons provided by OpenIconic : https://useiconic.com/open
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* ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
* ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
* CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
* Brotli (c) by the Brotli Authors https://github.com/google/brotli
* Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.project.time;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;
import net.sourceforge.plantuml.project.Value;
import net.sourceforge.plantuml.project.core.PrintScale;
public class Day implements Comparable, Value {
static final public long MILLISECONDS_PER_DAY = 1000L * 3600L * 24;
static final private Calendar gmt = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
private final int dayOfMonth;
private final MonthYear monthYear;
private final long milliseconds;
public static Day create(int year, String month, int dayOfMonth) {
return new Day(year, Month.fromString(month), dayOfMonth);
}
public static Day create(int year, int month, int dayOfMonth) {
return new Day(year, Month.values()[month - 1], dayOfMonth);
}
public static Day create(long ms) {
return new Day(ms);
}
public static Day today() {
return create(System.currentTimeMillis());
}
public String toStringShort(Locale locale) {
return monthYear.shortName(locale) + " " + dayOfMonth;
}
public int getWeekOfYear(WeekNumberStrategy strategy) {
synchronized (gmt) {
gmt.clear();
gmt.setTimeInMillis(milliseconds);
gmt.setFirstDayOfWeek(strategy.getFirstDayOfWeekAsLegacyInt());
gmt.setMinimalDaysInFirstWeek(strategy.getMinimalDaysInFirstWeek());
return gmt.get(Calendar.WEEK_OF_YEAR);
}
}
private Day(int year, Month month, int dayOfMonth) {
this.dayOfMonth = dayOfMonth;
this.monthYear = MonthYear.create(year, month);
synchronized (gmt) {
gmt.clear();
gmt.set(year, month.ordinal(), dayOfMonth);
this.milliseconds = gmt.getTimeInMillis();
}
}
private Day(long ms) {
this.milliseconds = ms;
synchronized (gmt) {
gmt.clear();
gmt.setTimeInMillis(ms);
final int year = gmt.get(Calendar.YEAR);
final int month = gmt.get(Calendar.MONTH);
final int dayOfMonth = gmt.get(Calendar.DAY_OF_MONTH);
this.dayOfMonth = dayOfMonth;
this.monthYear = MonthYear.create(year, Month.values()[month]);
}
}
public Day increment() {
return addDays(1);
}
public Day decrement() {
return addDays(-1);
}
public Day addDays(int nday) {
return create(MILLISECONDS_PER_DAY * (getAbsoluteDayNum() + nday));
}
public final int getAbsoluteDayNum() {
return (int) (milliseconds / MILLISECONDS_PER_DAY);
}
public final long getMillis() {
return milliseconds;
}
public int year() {
return monthYear.year();
}
private int internalNumber() {
return year() * 100 * 100 + month().ordinal() * 100 + dayOfMonth;
}
@Override
public String toString() {
return monthYear.toString() + "/" + dayOfMonth;
}
@Override
public int hashCode() {
return monthYear.hashCode() + dayOfMonth * 17;
}
@Override
public boolean equals(Object obj) {
final Day other = (Day) obj;
return other.internalNumber() == this.internalNumber();
}
public final int getDayOfMonth() {
return dayOfMonth;
}
private int daysPerMonth() {
return month().getDaysPerMonth(year());
}
public Month month() {
return monthYear.month();
}
public MonthYear monthYear() {
return monthYear;
}
// https://en.wikipedia.org/wiki/Zeller%27s_congruence
public DayOfWeek getDayOfWeek() {
final int q = dayOfMonth;
final int m = month().m();
final int y = m >= 13 ? year() - 1 : year();
final int k = y % 100;
final int j = y / 100;
final int h = ((q + 13 * (m + 1) / 5) + k + k / 4 + j / 4 + 5 * j) % 7;
return DayOfWeek.fromH(h);
}
public int compareTo(Day other) {
return this.internalNumber() - other.internalNumber();
}
public static Day min(Day wink1, Day wink2) {
if (wink2.internalNumber() < wink1.internalNumber())
return wink2;
return wink1;
}
public static Day max(Day wink1, Day wink2) {
if (wink2.internalNumber() > wink1.internalNumber())
return wink2;
return wink1;
}
public Day increment(PrintScale printScale) {
if (printScale == PrintScale.WEEKLY)
return this.addDays(7);
return increment();
}
public Day roundDayDown() {
return new Day((milliseconds / MILLISECONDS_PER_DAY) * MILLISECONDS_PER_DAY);
}
public Day roundDayUp() {
return new Day(((milliseconds + MILLISECONDS_PER_DAY - 1) / MILLISECONDS_PER_DAY) * MILLISECONDS_PER_DAY);
}
}