org.joda.time.chrono.AssembledChronology Maven / Gradle / Ivy
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/*
* Copyright 2001-2005 Stephen Colebourne
*
* 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.
*/
package org.joda.time.chrono;
import java.io.IOException;
import java.io.ObjectInputStream;
import org.joda.time.Chronology;
import org.joda.time.DateTimeField;
import org.joda.time.DateTimeZone;
import org.joda.time.DurationField;
/**
* Abstract Chronology that enables chronologies to be assembled from
* a container of fields.
*
* AssembledChronology is thread-safe and immutable.
*
* @author Brian S O'Neill
* @since 1.0
*/
public abstract class AssembledChronology extends BaseChronology {
private static final long serialVersionUID = -6728465968995518215L;
private final Chronology iBase;
private final Object iParam;
private transient DurationField iMillis;
private transient DurationField iSeconds;
private transient DurationField iMinutes;
private transient DurationField iHours;
private transient DurationField iHalfdays;
private transient DurationField iDays;
private transient DurationField iWeeks;
private transient DurationField iWeekyears;
private transient DurationField iMonths;
private transient DurationField iYears;
private transient DurationField iCenturies;
private transient DurationField iEras;
private transient DateTimeField iMillisOfSecond;
private transient DateTimeField iMillisOfDay;
private transient DateTimeField iSecondOfMinute;
private transient DateTimeField iSecondOfDay;
private transient DateTimeField iMinuteOfHour;
private transient DateTimeField iMinuteOfDay;
private transient DateTimeField iHourOfDay;
private transient DateTimeField iClockhourOfDay;
private transient DateTimeField iHourOfHalfday;
private transient DateTimeField iClockhourOfHalfday;
private transient DateTimeField iHalfdayOfDay;
private transient DateTimeField iDayOfWeek;
private transient DateTimeField iDayOfMonth;
private transient DateTimeField iDayOfYear;
private transient DateTimeField iWeekOfWeekyear;
private transient DateTimeField iWeekyear;
private transient DateTimeField iWeekyearOfCentury;
private transient DateTimeField iMonthOfYear;
private transient DateTimeField iYear;
private transient DateTimeField iYearOfEra;
private transient DateTimeField iYearOfCentury;
private transient DateTimeField iCenturyOfEra;
private transient DateTimeField iEra;
// Bit set determines which base fields are used
// bit 1 set: hourOfDay, minuteOfHour, secondOfMinute, and millisOfSecond fields
// bit 2 set: millisOfDayField
// bit 3 set: year, monthOfYear, and dayOfMonth fields
private transient int iBaseFlags;
/**
* Constructor calls the assemble method, enabling subclasses to define its
* supported fields. If a base chronology is supplied, the field set
* initially contains references to each base chronology field.
*
* Other methods in this class will delegate to the base chronology, if it
* can be determined that the base chronology will produce the same results
* as AbstractChronology.
*
* @param base optional base chronology to copy initial fields from
* @param param optional param object available for assemble method
*/
protected AssembledChronology(Chronology base, Object param) {
iBase = base;
iParam = param;
setFields();
}
public DateTimeZone getZone() {
Chronology base;
if ((base = iBase) != null) {
return base.getZone();
}
return null;
}
public long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth,
int millisOfDay)
throws IllegalArgumentException
{
Chronology base;
if ((base = iBase) != null && (iBaseFlags & 6) == 6) {
// Only call specialized implementation if applicable fields are the same.
return base.getDateTimeMillis(year, monthOfYear, dayOfMonth, millisOfDay);
}
return super.getDateTimeMillis(year, monthOfYear, dayOfMonth, millisOfDay);
}
public long getDateTimeMillis(int year, int monthOfYear, int dayOfMonth,
int hourOfDay, int minuteOfHour,
int secondOfMinute, int millisOfSecond)
throws IllegalArgumentException
{
Chronology base;
if ((base = iBase) != null && (iBaseFlags & 5) == 5) {
// Only call specialized implementation if applicable fields are the same.
return base.getDateTimeMillis(year, monthOfYear, dayOfMonth,
hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond);
}
return super.getDateTimeMillis(year, monthOfYear, dayOfMonth,
hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond);
}
public long getDateTimeMillis(long instant,
int hourOfDay, int minuteOfHour,
int secondOfMinute, int millisOfSecond)
throws IllegalArgumentException
{
Chronology base;
if ((base = iBase) != null && (iBaseFlags & 1) == 1) {
// Only call specialized implementation if applicable fields are the same.
return base.getDateTimeMillis
(instant, hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond);
}
return super.getDateTimeMillis
(instant, hourOfDay, minuteOfHour, secondOfMinute, millisOfSecond);
}
public final DurationField millis() {
return iMillis;
}
public final DateTimeField millisOfSecond() {
return iMillisOfSecond;
}
public final DateTimeField millisOfDay() {
return iMillisOfDay;
}
public final DurationField seconds() {
return iSeconds;
}
public final DateTimeField secondOfMinute() {
return iSecondOfMinute;
}
public final DateTimeField secondOfDay() {
return iSecondOfDay;
}
public final DurationField minutes() {
return iMinutes;
}
public final DateTimeField minuteOfHour() {
return iMinuteOfHour;
}
public final DateTimeField minuteOfDay() {
return iMinuteOfDay;
}
public final DurationField hours() {
return iHours;
}
public final DateTimeField hourOfDay() {
return iHourOfDay;
}
public final DateTimeField clockhourOfDay() {
return iClockhourOfDay;
}
public final DurationField halfdays() {
return iHalfdays;
}
public final DateTimeField hourOfHalfday() {
return iHourOfHalfday;
}
public final DateTimeField clockhourOfHalfday() {
return iClockhourOfHalfday;
}
public final DateTimeField halfdayOfDay() {
return iHalfdayOfDay;
}
public final DurationField days() {
return iDays;
}
public final DateTimeField dayOfWeek() {
return iDayOfWeek;
}
public final DateTimeField dayOfMonth() {
return iDayOfMonth;
}
public final DateTimeField dayOfYear() {
return iDayOfYear;
}
public final DurationField weeks() {
return iWeeks;
}
public final DateTimeField weekOfWeekyear() {
return iWeekOfWeekyear;
}
public final DurationField weekyears() {
return iWeekyears;
}
public final DateTimeField weekyear() {
return iWeekyear;
}
public final DateTimeField weekyearOfCentury() {
return iWeekyearOfCentury;
}
public final DurationField months() {
return iMonths;
}
public final DateTimeField monthOfYear() {
return iMonthOfYear;
}
public final DurationField years() {
return iYears;
}
public final DateTimeField year() {
return iYear;
}
public final DateTimeField yearOfEra() {
return iYearOfEra;
}
public final DateTimeField yearOfCentury() {
return iYearOfCentury;
}
public final DurationField centuries() {
return iCenturies;
}
public final DateTimeField centuryOfEra() {
return iCenturyOfEra;
}
public final DurationField eras() {
return iEras;
}
public final DateTimeField era() {
return iEra;
}
/**
* Invoked by the constructor and after deserialization to allow subclasses
* to define all of its supported fields. All unset fields default to
* unsupported instances.
*
* @param fields container of fields
*/
protected abstract void assemble(Fields fields);
/**
* Returns the same base chronology as passed into the constructor.
*/
protected final Chronology getBase() {
return iBase;
}
/**
* Returns the same param object as passed into the constructor.
*/
protected final Object getParam() {
return iParam;
}
private void setFields() {
Fields fields = new Fields();
if (iBase != null) {
fields.copyFieldsFrom(iBase);
}
assemble(fields);
{
DurationField f;
iMillis = (f = fields.millis) != null ? f : super.millis();
iSeconds = (f = fields.seconds) != null ? f : super.seconds();
iMinutes = (f = fields.minutes) != null ? f : super.minutes();
iHours = (f = fields.hours) != null ? f : super.hours();
iHalfdays = (f = fields.halfdays) != null ? f : super.halfdays();
iDays = (f = fields.days) != null ? f : super.days();
iWeeks = (f = fields.weeks) != null ? f : super.weeks();
iWeekyears = (f = fields.weekyears) != null ? f : super.weekyears();
iMonths = (f = fields.months) != null ? f : super.months();
iYears = (f = fields.years) != null ? f : super.years();
iCenturies = (f = fields.centuries) != null ? f : super.centuries();
iEras = (f = fields.eras) != null ? f : super.eras();
}
{
DateTimeField f;
iMillisOfSecond = (f = fields.millisOfSecond) != null ? f : super.millisOfSecond();
iMillisOfDay = (f = fields.millisOfDay) != null ? f : super.millisOfDay();
iSecondOfMinute = (f = fields.secondOfMinute) != null ? f : super.secondOfMinute();
iSecondOfDay = (f = fields.secondOfDay) != null ? f : super.secondOfDay();
iMinuteOfHour = (f = fields.minuteOfHour) != null ? f : super.minuteOfHour();
iMinuteOfDay = (f = fields.minuteOfDay) != null ? f : super.minuteOfDay();
iHourOfDay = (f = fields.hourOfDay) != null ? f : super.hourOfDay();
iClockhourOfDay = (f = fields.clockhourOfDay) != null ? f : super.clockhourOfDay();
iHourOfHalfday = (f = fields.hourOfHalfday) != null ? f : super.hourOfHalfday();
iClockhourOfHalfday = (f = fields.clockhourOfHalfday) != null ? f : super.clockhourOfHalfday();
iHalfdayOfDay = (f = fields.halfdayOfDay) != null ? f : super.halfdayOfDay();
iDayOfWeek = (f = fields.dayOfWeek) != null ? f : super.dayOfWeek();
iDayOfMonth = (f = fields.dayOfMonth) != null ? f : super.dayOfMonth();
iDayOfYear = (f = fields.dayOfYear) != null ? f : super.dayOfYear();
iWeekOfWeekyear = (f = fields.weekOfWeekyear) != null ? f : super.weekOfWeekyear();
iWeekyear = (f = fields.weekyear) != null ? f : super.weekyear();
iWeekyearOfCentury = (f = fields.weekyearOfCentury) != null ? f : super.weekyearOfCentury();
iMonthOfYear = (f = fields.monthOfYear) != null ? f : super.monthOfYear();
iYear = (f = fields.year) != null ? f : super.year();
iYearOfEra = (f = fields.yearOfEra) != null ? f : super.yearOfEra();
iYearOfCentury = (f = fields.yearOfCentury) != null ? f : super.yearOfCentury();
iCenturyOfEra = (f = fields.centuryOfEra) != null ? f : super.centuryOfEra();
iEra = (f = fields.era) != null ? f : super.era();
}
int flags;
if (iBase == null) {
flags = 0;
} else {
flags =
((iHourOfDay == iBase.hourOfDay() &&
iMinuteOfHour == iBase.minuteOfHour() &&
iSecondOfMinute == iBase.secondOfMinute() &&
iMillisOfSecond == iBase.millisOfSecond() ) ? 1 : 0) |
((iMillisOfDay == iBase.millisOfDay()) ? 2 : 0) |
((iYear == iBase.year() &&
iMonthOfYear == iBase.monthOfYear() &&
iDayOfMonth == iBase.dayOfMonth() ) ? 4 : 0);
}
iBaseFlags = flags;
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
setFields();
}
/**
* A container of fields used for assembling a chronology.
*/
public static final class Fields {
public DurationField millis;
public DurationField seconds;
public DurationField minutes;
public DurationField hours;
public DurationField halfdays;
public DurationField days;
public DurationField weeks;
public DurationField weekyears;
public DurationField months;
public DurationField years;
public DurationField centuries;
public DurationField eras;
public DateTimeField millisOfSecond;
public DateTimeField millisOfDay;
public DateTimeField secondOfMinute;
public DateTimeField secondOfDay;
public DateTimeField minuteOfHour;
public DateTimeField minuteOfDay;
public DateTimeField hourOfDay;
public DateTimeField clockhourOfDay;
public DateTimeField hourOfHalfday;
public DateTimeField clockhourOfHalfday;
public DateTimeField halfdayOfDay;
public DateTimeField dayOfWeek;
public DateTimeField dayOfMonth;
public DateTimeField dayOfYear;
public DateTimeField weekOfWeekyear;
public DateTimeField weekyear;
public DateTimeField weekyearOfCentury;
public DateTimeField monthOfYear;
public DateTimeField year;
public DateTimeField yearOfEra;
public DateTimeField yearOfCentury;
public DateTimeField centuryOfEra;
public DateTimeField era;
Fields() {
}
/**
* Copy the supported fields from a chronology into this container.
*/
public void copyFieldsFrom(Chronology chrono) {
{
DurationField f;
if (isSupported(f = chrono.millis())) {
millis = f;
}
if (isSupported(f = chrono.seconds())) {
seconds = f;
}
if (isSupported(f = chrono.minutes())) {
minutes = f;
}
if (isSupported(f = chrono.hours())) {
hours = f;
}
if (isSupported(f = chrono.halfdays())) {
halfdays = f;
}
if (isSupported(f = chrono.days())) {
days = f;
}
if (isSupported(f = chrono.weeks())) {
weeks = f;
}
if (isSupported(f = chrono.weekyears())) {
weekyears = f;
}
if (isSupported(f = chrono.months())) {
months = f;
}
if (isSupported(f = chrono.years())) {
years = f;
}
if (isSupported(f = chrono.centuries())) {
centuries = f;
}
if (isSupported(f = chrono.eras())) {
eras = f;
}
}
{
DateTimeField f;
if (isSupported(f = chrono.millisOfSecond())) {
millisOfSecond = f;
}
if (isSupported(f = chrono.millisOfDay())) {
millisOfDay = f;
}
if (isSupported(f = chrono.secondOfMinute())) {
secondOfMinute = f;
}
if (isSupported(f = chrono.secondOfDay())) {
secondOfDay = f;
}
if (isSupported(f = chrono.minuteOfHour())) {
minuteOfHour = f;
}
if (isSupported(f = chrono.minuteOfDay())) {
minuteOfDay = f;
}
if (isSupported(f = chrono.hourOfDay())) {
hourOfDay = f;
}
if (isSupported(f = chrono.clockhourOfDay())) {
clockhourOfDay = f;
}
if (isSupported(f = chrono.hourOfHalfday())) {
hourOfHalfday = f;
}
if (isSupported(f = chrono.clockhourOfHalfday())) {
clockhourOfHalfday = f;
}
if (isSupported(f = chrono.halfdayOfDay())) {
halfdayOfDay = f;
}
if (isSupported(f = chrono.dayOfWeek())) {
dayOfWeek = f;
}
if (isSupported(f = chrono.dayOfMonth())) {
dayOfMonth = f;
}
if (isSupported(f = chrono.dayOfYear())) {
dayOfYear = f;
}
if (isSupported(f = chrono.weekOfWeekyear())) {
weekOfWeekyear = f;
}
if (isSupported(f = chrono.weekyear())) {
weekyear = f;
}
if (isSupported(f = chrono.weekyearOfCentury())) {
weekyearOfCentury = f;
}
if (isSupported(f = chrono.monthOfYear())) {
monthOfYear = f;
}
if (isSupported(f = chrono.year())) {
year = f;
}
if (isSupported(f = chrono.yearOfEra())) {
yearOfEra = f;
}
if (isSupported(f = chrono.yearOfCentury())) {
yearOfCentury = f;
}
if (isSupported(f = chrono.centuryOfEra())) {
centuryOfEra = f;
}
if (isSupported(f = chrono.era())) {
era = f;
}
}
}
private static boolean isSupported(DurationField field) {
return field == null ? false : field.isSupported();
}
private static boolean isSupported(DateTimeField field) {
return field == null ? false : field.isSupported();
}
}
}