--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/time/chrono/HijrahChronology.java Tue Feb 12 09:25:43 2013 -0800
@@ -0,0 +1,1383 @@
+/*
+ * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * Copyright (c) 2012, 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 java.time.chrono;
+
+import static java.time.temporal.ChronoField.EPOCH_DAY;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.text.ParseException;
+import java.time.Clock;
+import java.time.DateTimeException;
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.temporal.ChronoField;
+import java.time.temporal.TemporalAccessor;
+import java.time.temporal.ValueRange;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+
+/**
+ * The Hijrah calendar system.
+ * <p>
+ * This chronology defines the rules of the Hijrah calendar system.
+ * <p>
+ * The implementation follows the Freeman-Grenville algorithm (*1) and has following features.
+ * <p><ul>
+ * <li>A year has 12 months.</li>
+ * <li>Over a cycle of 30 years there are 11 leap years.</li>
+ * <li>There are 30 days in month number 1, 3, 5, 7, 9, and 11,
+ * and 29 days in month number 2, 4, 6, 8, 10, and 12.</li>
+ * <li>In a leap year month 12 has 30 days.</li>
+ * <li>In a 30 year cycle, year 2, 5, 7, 10, 13, 16, 18, 21, 24,
+ * 26, and 29 are leap years.</li>
+ * <li>Total of 10631 days in a 30 years cycle.</li>
+ * </ul><p>
+ * <P>
+ * The table shows the features described above.
+ * <blockquote>
+ * <table border="1">
+ * <caption>Hijrah Calendar Months</caption>
+ * <tbody>
+ * <tr>
+ * <th># of month</th>
+ * <th>Name of month</th>
+ * <th>Number of days</th>
+ * </tr>
+ * <tr>
+ * <td>1</td>
+ * <td>Muharram</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>2</td>
+ * <td>Safar</td>
+ * <td>29</td>
+ * </tr>
+ * <tr>
+ * <td>3</td>
+ * <td>Rabi'al-Awwal</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>4</td>
+ * <td>Rabi'ath-Thani</td>
+ * <td>29</td>
+ * </tr>
+ * <tr>
+ * <td>5</td>
+ * <td>Jumada l-Ula</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>6</td>
+ * <td>Jumada t-Tania</td>
+ * <td>29</td>
+ * </tr>
+ * <tr>
+ * <td>7</td>
+ * <td>Rajab</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>8</td>
+ * <td>Sha`ban</td>
+ * <td>29</td>
+ * </tr>
+ * <tr>
+ * <td>9</td>
+ * <td>Ramadan</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>10</td>
+ * <td>Shawwal</td>
+ * <td>29</td>
+ * </tr>
+ * <tr>
+ * <td>11</td>
+ * <td>Dhu 'l-Qa`da</td>
+ * <td>30</td>
+ * </tr>
+ * <tr>
+ * <td>12</td>
+ * <td>Dhu 'l-Hijja</td>
+ * <td>29, but 30 days in years 2, 5, 7, 10,<br>
+ * 13, 16, 18, 21, 24, 26, and 29</td>
+ * </tr>
+ * </tbody>
+ * </table>
+ * </blockquote>
+ * <p>
+ * (*1) The algorithm is taken from the book,
+ * The Muslim and Christian Calendars by G.S.P. Freeman-Grenville.
+ * <p>
+ *
+ * <h3>Specification for implementors</h3>
+ * This class is immutable and thread-safe.
+ *
+ * @since 1.8
+ */
+public final class HijrahChronology extends Chronology implements Serializable {
+
+ /**
+ * The Hijrah Calendar id.
+ */
+ private final String typeId;
+
+ /**
+ * The Hijrah calendarType.
+ */
+ private final String calendarType;
+
+ /**
+ * The singleton instance for the era before the current one - Before Hijrah -
+ * which has the value 0.
+ */
+ public static final Era ERA_BEFORE_AH = HijrahEra.BEFORE_AH;
+ /**
+ * The singleton instance for the current era - Hijrah - which has the value 1.
+ */
+ public static final Era ERA_AH = HijrahEra.AH;
+ /**
+ * Serialization version.
+ */
+ private static final long serialVersionUID = 3127340209035924785L;
+ /**
+ * The minimum valid year-of-era.
+ */
+ public static final int MIN_YEAR_OF_ERA = 1;
+ /**
+ * The maximum valid year-of-era.
+ * This is currently set to 9999 but may be changed to increase the valid range
+ * in a future version of the specification.
+ */
+ public static final int MAX_YEAR_OF_ERA = 9999;
+
+ /**
+ * Number of Gregorian day of July 19, year 622 (Gregorian), which is epoch day
+ * of Hijrah calendar.
+ */
+ private static final int HIJRAH_JAN_1_1_GREGORIAN_DAY = -492148;
+ /**
+ * 0-based, for number of day-of-year in the beginning of month in normal
+ * year.
+ */
+ private static final int NUM_DAYS[] =
+ {0, 30, 59, 89, 118, 148, 177, 207, 236, 266, 295, 325};
+ /**
+ * 0-based, for number of day-of-year in the beginning of month in leap year.
+ */
+ private static final int LEAP_NUM_DAYS[] =
+ {0, 30, 59, 89, 118, 148, 177, 207, 236, 266, 295, 325};
+ /**
+ * 0-based, for day-of-month in normal year.
+ */
+ private static final int MONTH_LENGTH[] =
+ {30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 29};
+ /**
+ * 0-based, for day-of-month in leap year.
+ */
+ private static final int LEAP_MONTH_LENGTH[] =
+ {30, 29, 30, 29, 30, 29, 30, 29, 30, 29, 30, 30};
+
+ /**
+ * <pre>
+ * Greatest Least
+ * Field name Minimum Minimum Maximum Maximum
+ * ---------- ------- ------- ------- -------
+ * ERA 0 0 1 1
+ * YEAR_OF_ERA 1 1 9999 9999
+ * MONTH_OF_YEAR 1 1 12 12
+ * DAY_OF_MONTH 1 1 29 30
+ * DAY_OF_YEAR 1 1 354 355
+ * </pre>
+ *
+ * Minimum values.
+ */
+ private static final int MIN_VALUES[] =
+ {
+ 0,
+ MIN_YEAR_OF_ERA,
+ 0,
+ 1,
+ 0,
+ 1,
+ 1
+ };
+
+ /**
+ * Least maximum values.
+ */
+ private static final int LEAST_MAX_VALUES[] =
+ {
+ 1,
+ MAX_YEAR_OF_ERA,
+ 11,
+ 51,
+ 5,
+ 29,
+ 354
+ };
+
+ /**
+ * Maximum values.
+ */
+ private static final int MAX_VALUES[] =
+ {
+ 1,
+ MAX_YEAR_OF_ERA,
+ 11,
+ 52,
+ 6,
+ 30,
+ 355
+ };
+
+ /**
+ * Position of day-of-month. This value is used to get the min/max value
+ * from an array.
+ */
+ private static final int POSITION_DAY_OF_MONTH = 5;
+ /**
+ * Position of day-of-year. This value is used to get the min/max value from
+ * an array.
+ */
+ private static final int POSITION_DAY_OF_YEAR = 6;
+ /**
+ * Zero-based start date of cycle year.
+ */
+ private static final int CYCLEYEAR_START_DATE[] =
+ {
+ 0,
+ 354,
+ 709,
+ 1063,
+ 1417,
+ 1772,
+ 2126,
+ 2481,
+ 2835,
+ 3189,
+ 3544,
+ 3898,
+ 4252,
+ 4607,
+ 4961,
+ 5315,
+ 5670,
+ 6024,
+ 6379,
+ 6733,
+ 7087,
+ 7442,
+ 7796,
+ 8150,
+ 8505,
+ 8859,
+ 9214,
+ 9568,
+ 9922,
+ 10277
+ };
+
+ /**
+ * Holding the adjusted month days in year. The key is a year (Integer) and
+ * the value is the all the month days in year (int[]).
+ */
+ private final HashMap<Integer, int[]> ADJUSTED_MONTH_DAYS = new HashMap<>();
+ /**
+ * Holding the adjusted month length in year. The key is a year (Integer)
+ * and the value is the all the month length in year (int[]).
+ */
+ private final HashMap<Integer, int[]> ADJUSTED_MONTH_LENGTHS = new HashMap<>();
+ /**
+ * Holding the adjusted days in the 30 year cycle. The key is a cycle number
+ * (Integer) and the value is the all the starting days of the year in the
+ * cycle (int[]).
+ */
+ private final HashMap<Integer, int[]> ADJUSTED_CYCLE_YEARS = new HashMap<>();
+ /**
+ * Holding the adjusted cycle in the 1 - 30000 year. The key is the cycle
+ * number (Integer) and the value is the starting days in the cycle in the
+ * term.
+ */
+ private final long[] ADJUSTED_CYCLES;
+ /**
+ * Holding the adjusted min values.
+ */
+ private final int[] ADJUSTED_MIN_VALUES;
+ /**
+ * Holding the adjusted max least max values.
+ */
+ private final int[] ADJUSTED_LEAST_MAX_VALUES;
+ /**
+ * Holding adjusted max values.
+ */
+ private final int[] ADJUSTED_MAX_VALUES;
+ /**
+ * Holding the non-adjusted month days in year for non leap year.
+ */
+ private static final int[] DEFAULT_MONTH_DAYS;
+ /**
+ * Holding the non-adjusted month days in year for leap year.
+ */
+ private static final int[] DEFAULT_LEAP_MONTH_DAYS;
+ /**
+ * Holding the non-adjusted month length for non leap year.
+ */
+ private static final int[] DEFAULT_MONTH_LENGTHS;
+ /**
+ * Holding the non-adjusted month length for leap year.
+ */
+ private static final int[] DEFAULT_LEAP_MONTH_LENGTHS;
+ /**
+ * Holding the non-adjusted 30 year cycle starting day.
+ */
+ private static final int[] DEFAULT_CYCLE_YEARS;
+ /**
+ * number of 30-year cycles to hold the deviation data.
+ */
+ private static final int MAX_ADJUSTED_CYCLE = 334; // to support year 9999
+
+
+ /**
+ * Narrow names for eras.
+ */
+ private static final HashMap<String, String[]> ERA_NARROW_NAMES = new HashMap<>();
+ /**
+ * Short names for eras.
+ */
+ private static final HashMap<String, String[]> ERA_SHORT_NAMES = new HashMap<>();
+ /**
+ * Full names for eras.
+ */
+ private static final HashMap<String, String[]> ERA_FULL_NAMES = new HashMap<>();
+ /**
+ * Fallback language for the era names.
+ */
+ private static final String FALLBACK_LANGUAGE = "en";
+
+ /**
+ * Singleton instance of the Hijrah chronology.
+ * Must be initialized after the rest of the static initialization.
+ */
+ public static final HijrahChronology INSTANCE;
+
+ /**
+ * Name data.
+ */
+ static {
+ ERA_NARROW_NAMES.put(FALLBACK_LANGUAGE, new String[]{"BH", "HE"});
+ ERA_SHORT_NAMES.put(FALLBACK_LANGUAGE, new String[]{"B.H.", "H.E."});
+ ERA_FULL_NAMES.put(FALLBACK_LANGUAGE, new String[]{"Before Hijrah", "Hijrah Era"});
+
+ DEFAULT_MONTH_DAYS = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length);
+
+ DEFAULT_LEAP_MONTH_DAYS = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length);
+
+ DEFAULT_MONTH_LENGTHS = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length);
+
+ DEFAULT_LEAP_MONTH_LENGTHS = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length);
+
+ DEFAULT_CYCLE_YEARS = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length);
+
+ INSTANCE = new HijrahChronology();
+
+ String extraCalendars = java.security.AccessController.doPrivileged(
+ new sun.security.action.GetPropertyAction("java.time.chrono.HijrahCalendars"));
+ if (extraCalendars != null) {
+ try {
+ // Split on whitespace
+ String[] splits = extraCalendars.split("\\s");
+ for (String cal : splits) {
+ if (!cal.isEmpty()) {
+ // Split on the delimiter between typeId "-" calendarType
+ String[] type = cal.split("-");
+ Chronology cal2 = new HijrahChronology(type[0], type.length > 1 ? type[1] : type[0]);
+ }
+ }
+ } catch (Exception ex) {
+ // Log the error
+ // ex.printStackTrace();
+ }
+ }
+ }
+
+ /**
+ * Restricted constructor.
+ */
+ private HijrahChronology() {
+ this("Hijrah", "islamicc");
+ }
+ /**
+ * Constructor for name and type HijrahChronology.
+ * @param id the id of the calendar
+ * @param calendarType the calendar type
+ */
+ private HijrahChronology(String id, String calendarType) {
+ this.typeId = id;
+ this.calendarType = calendarType;
+
+ ADJUSTED_CYCLES = new long[MAX_ADJUSTED_CYCLE];
+ for (int i = 0; i < ADJUSTED_CYCLES.length; i++) {
+ ADJUSTED_CYCLES[i] = (10631L * i);
+ }
+ // Initialize min values, least max values and max values.
+ ADJUSTED_MIN_VALUES = Arrays.copyOf(MIN_VALUES, MIN_VALUES.length);
+ ADJUSTED_LEAST_MAX_VALUES = Arrays.copyOf(LEAST_MAX_VALUES, LEAST_MAX_VALUES.length);
+ ADJUSTED_MAX_VALUES = Arrays.copyOf(MAX_VALUES,MAX_VALUES.length);
+
+ try {
+ // Implicitly reads deviation data for this HijrahChronology.
+ boolean any = HijrahDeviationReader.readDeviation(typeId, calendarType, this::addDeviationAsHijrah);
+ } catch (IOException | ParseException e) {
+ // do nothing. Log deviation config errors.
+ //e.printStackTrace();
+ }
+ }
+
+ /**
+ * Resolve singleton.
+ *
+ * @return the singleton instance, not null
+ */
+ private Object readResolve() {
+ return INSTANCE;
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Gets the ID of the chronology - 'Hijrah'.
+ * <p>
+ * The ID uniquely identifies the {@code Chronology}.
+ * It can be used to lookup the {@code Chronology} using {@link #of(String)}.
+ *
+ * @return the chronology ID - 'Hijrah'
+ * @see #getCalendarType()
+ */
+ @Override
+ public String getId() {
+ return typeId;
+ }
+
+ /**
+ * Gets the calendar type of the underlying calendar system - 'islamicc'.
+ * <p>
+ * The calendar type is an identifier defined by the
+ * <em>Unicode Locale Data Markup Language (LDML)</em> specification.
+ * It can be used to lookup the {@code Chronology} using {@link #of(String)}.
+ * It can also be used as part of a locale, accessible via
+ * {@link Locale#getUnicodeLocaleType(String)} with the key 'ca'.
+ *
+ * @return the calendar system type - 'islamicc'
+ * @see #getId()
+ */
+ @Override
+ public String getCalendarType() {
+ return calendarType;
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public HijrahDate date(int prolepticYear, int month, int dayOfMonth) {
+ return HijrahDate.of(this, prolepticYear, month, dayOfMonth);
+ }
+
+ @Override
+ public HijrahDate dateYearDay(int prolepticYear, int dayOfYear) {
+ return HijrahDate.of(this, prolepticYear, 1, 1).plusDays(dayOfYear - 1); // TODO better
+ }
+
+ @Override
+ public HijrahDate date(TemporalAccessor temporal) {
+ if (temporal instanceof HijrahDate) {
+ return (HijrahDate) temporal;
+ }
+ return HijrahDate.ofEpochDay(this, temporal.getLong(EPOCH_DAY));
+ }
+
+ @Override
+ public HijrahDate date(Era era, int yearOfEra, int month, int dayOfMonth) {
+ return date(prolepticYear(era, yearOfEra), month, dayOfMonth);
+
+ }
+
+ @Override
+ public HijrahDate dateYearDay(Era era, int yearOfEra, int dayOfYear) {
+ return dateYearDay(prolepticYear(era, yearOfEra), dayOfYear);
+ }
+
+ @Override
+ public HijrahDate dateNow() {
+ return dateNow(Clock.systemDefaultZone());
+ }
+
+ @Override
+ public HijrahDate dateNow(ZoneId zone) {
+ return dateNow(Clock.system(zone));
+ }
+
+ @Override
+ public HijrahDate dateNow(Clock clock) {
+ return date(LocalDate.now(clock));
+ }
+
+ @Override
+ public ChronoLocalDateTime<HijrahDate> localDateTime(TemporalAccessor temporal) {
+ return (ChronoLocalDateTime<HijrahDate>)super.localDateTime(temporal);
+ }
+
+ @Override
+ public ChronoZonedDateTime<HijrahDate> zonedDateTime(TemporalAccessor temporal) {
+ return (ChronoZonedDateTime<HijrahDate>)super.zonedDateTime(temporal);
+ }
+
+ @Override
+ public ChronoZonedDateTime<HijrahDate> zonedDateTime(Instant instant, ZoneId zone) {
+ return (ChronoZonedDateTime<HijrahDate>)super.zonedDateTime(instant, zone);
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public boolean isLeapYear(long prolepticYear) {
+ return isLeapYear0(prolepticYear);
+ }
+ /**
+ * Returns if the year is a leap year.
+ * @param prolepticYear he year to compute from
+ * @return {@code true} if the year is a leap year, otherwise {@code false}
+ */
+ private static boolean isLeapYear0(long prolepticYear) {
+ return (14 + 11 * (prolepticYear > 0 ? prolepticYear : -prolepticYear)) % 30 < 11;
+ }
+
+ @Override
+ public int prolepticYear(Era era, int yearOfEra) {
+ if (era instanceof HijrahEra == false) {
+ throw new DateTimeException("Era must be HijrahEra");
+ }
+ return (era == HijrahEra.AH ? yearOfEra : 1 - yearOfEra);
+ }
+
+ @Override
+ public Era eraOf(int eraValue) {
+ switch (eraValue) {
+ case 0:
+ return HijrahEra.BEFORE_AH;
+ case 1:
+ return HijrahEra.AH;
+ default:
+ throw new DateTimeException("invalid Hijrah era");
+ }
+ }
+
+ @Override
+ public List<Era> eras() {
+ return Arrays.<Era>asList(HijrahEra.values());
+ }
+
+ //-----------------------------------------------------------------------
+ @Override
+ public ValueRange range(ChronoField field) {
+ return field.range();
+ }
+
+ /**
+ * Check the validity of a yearOfEra.
+ * @param yearOfEra the year to check
+ */
+ void checkValidYearOfEra(int yearOfEra) {
+ if (yearOfEra < MIN_YEAR_OF_ERA ||
+ yearOfEra > MAX_YEAR_OF_ERA) {
+ throw new DateTimeException("Invalid year of Hijrah Era");
+ }
+ }
+
+ void checkValidDayOfYear(int dayOfYear) {
+ if (dayOfYear < 1 ||
+ dayOfYear > getMaximumDayOfYear()) {
+ throw new DateTimeException("Invalid day of year of Hijrah date");
+ }
+ }
+
+ void checkValidMonth(int month) {
+ if (month < 1 || month > 12) {
+ throw new DateTimeException("Invalid month of Hijrah date");
+ }
+ }
+
+ void checkValidDayOfMonth(int dayOfMonth) {
+ if (dayOfMonth < 1 ||
+ dayOfMonth > getMaximumDayOfMonth()) {
+ throw new DateTimeException("Invalid day of month of Hijrah date, day "
+ + dayOfMonth + " greater than " + getMaximumDayOfMonth() + " or less than 1");
+ }
+ }
+
+ //-----------------------------------------------------------------------
+ /**
+ * Returns the int array containing the following field from the julian day.
+ *
+ * int[0] = ERA
+ * int[1] = YEAR
+ * int[2] = MONTH
+ * int[3] = DATE
+ * int[4] = DAY_OF_YEAR
+ * int[5] = DAY_OF_WEEK
+ *
+ * @param gregorianDays a julian day.
+ */
+ int[] getHijrahDateInfo(long gregorianDays) {
+ int era, year, month, date, dayOfWeek, dayOfYear;
+
+ int cycleNumber, yearInCycle, dayOfCycle;
+
+ long epochDay = gregorianDays - HIJRAH_JAN_1_1_GREGORIAN_DAY;
+
+ if (epochDay >= 0) {
+ cycleNumber = getCycleNumber(epochDay); // 0 - 99.
+ dayOfCycle = getDayOfCycle(epochDay, cycleNumber); // 0 - 10631.
+ yearInCycle = getYearInCycle(cycleNumber, dayOfCycle); // 0 - 29.
+ dayOfYear = getDayOfYear(cycleNumber, dayOfCycle, yearInCycle);
+ // 0 - 354/355
+ year = cycleNumber * 30 + yearInCycle + 1; // 1-based year.
+ month = getMonthOfYear(dayOfYear, year); // 0-based month-of-year
+ date = getDayOfMonth(dayOfYear, month, year); // 0-based date
+ ++date; // Convert from 0-based to 1-based
+ era = HijrahEra.AH.getValue();
+ } else {
+ cycleNumber = (int) epochDay / 10631; // 0 or negative number.
+ dayOfCycle = (int) epochDay % 10631; // -10630 - 0.
+ if (dayOfCycle == 0) {
+ dayOfCycle = -10631;
+ cycleNumber++;
+ }
+ yearInCycle = getYearInCycle(cycleNumber, dayOfCycle); // 0 - 29.
+ dayOfYear = getDayOfYear(cycleNumber, dayOfCycle, yearInCycle);
+ year = cycleNumber * 30 - yearInCycle; // negative number.
+ year = 1 - year;
+ dayOfYear = (isLeapYear(year) ? (dayOfYear + 355)
+ : (dayOfYear + 354));
+ month = getMonthOfYear(dayOfYear, year);
+ date = getDayOfMonth(dayOfYear, month, year);
+ ++date; // Convert from 0-based to 1-based
+ era = HijrahEra.BEFORE_AH.getValue();
+ }
+ // Hijrah day zero is a Friday
+ dayOfWeek = (int) ((epochDay + 5) % 7);
+ dayOfWeek += (dayOfWeek <= 0) ? 7 : 0;
+
+ int dateInfo[] = new int[6];
+ dateInfo[0] = era;
+ dateInfo[1] = year;
+ dateInfo[2] = month + 1; // change to 1-based.
+ dateInfo[3] = date;
+ dateInfo[4] = dayOfYear + 1; // change to 1-based.
+ dateInfo[5] = dayOfWeek;
+ return dateInfo;
+ }
+
+ /**
+ * Return Gregorian epoch day from Hijrah year, month, and day.
+ *
+ * @param prolepticYear the year to represent, caller calculated
+ * @param monthOfYear the month-of-year to represent, caller calculated
+ * @param dayOfMonth the day-of-month to represent, caller calculated
+ * @return a julian day
+ */
+ long getGregorianEpochDay(int prolepticYear, int monthOfYear, int dayOfMonth) {
+ long day = yearToGregorianEpochDay(prolepticYear);
+ day += getMonthDays(monthOfYear - 1, prolepticYear);
+ day += dayOfMonth;
+ return day;
+ }
+
+ /**
+ * Returns the Gregorian epoch day from the proleptic year
+ * @param prolepticYear the proleptic year
+ * @return the Epoch day
+ */
+ private long yearToGregorianEpochDay(int prolepticYear) {
+
+ int cycleNumber = (prolepticYear - 1) / 30; // 0-based.
+ int yearInCycle = (prolepticYear - 1) % 30; // 0-based.
+
+ int dayInCycle = getAdjustedCycle(cycleNumber)[Math.abs(yearInCycle)]
+ ;
+
+ if (yearInCycle < 0) {
+ dayInCycle = -dayInCycle;
+ }
+
+ Long cycleDays;
+
+ try {
+ cycleDays = ADJUSTED_CYCLES[cycleNumber];
+ } catch (ArrayIndexOutOfBoundsException e) {
+ cycleDays = null;
+ }
+
+ if (cycleDays == null) {
+ cycleDays = new Long(cycleNumber * 10631);
+ }
+
+ return (cycleDays.longValue() + dayInCycle + HIJRAH_JAN_1_1_GREGORIAN_DAY - 1);
+ }
+
+ /**
+ * Returns the 30 year cycle number from the epoch day.
+ *
+ * @param epochDay an epoch day
+ * @return a cycle number
+ */
+ private int getCycleNumber(long epochDay) {
+ long[] days = ADJUSTED_CYCLES;
+ int cycleNumber;
+ try {
+ for (int i = 0; i < days.length; i++) {
+ if (epochDay < days[i]) {
+ return i - 1;
+ }
+ }
+ cycleNumber = (int) epochDay / 10631;
+ } catch (ArrayIndexOutOfBoundsException e) {
+ cycleNumber = (int) epochDay / 10631;
+ }
+ return cycleNumber;
+ }
+
+ /**
+ * Returns day of cycle from the epoch day and cycle number.
+ *
+ * @param epochDay an epoch day
+ * @param cycleNumber a cycle number
+ * @return a day of cycle
+ */
+ private int getDayOfCycle(long epochDay, int cycleNumber) {
+ Long day;
+
+ try {
+ day = ADJUSTED_CYCLES[cycleNumber];
+ } catch (ArrayIndexOutOfBoundsException e) {
+ day = null;
+ }
+ if (day == null) {
+ day = new Long(cycleNumber * 10631);
+ }
+ return (int) (epochDay - day.longValue());
+ }
+
+ /**
+ * Returns the year in cycle from the cycle number and day of cycle.
+ *
+ * @param cycleNumber a cycle number
+ * @param dayOfCycle day of cycle
+ * @return a year in cycle
+ */
+ private int getYearInCycle(int cycleNumber, long dayOfCycle) {
+ int[] cycles = getAdjustedCycle(cycleNumber);
+ if (dayOfCycle == 0) {
+ return 0;
+ }
+
+ if (dayOfCycle > 0) {
+ for (int i = 0; i < cycles.length; i++) {
+ if (dayOfCycle < cycles[i]) {
+ return i - 1;
+ }
+ }
+ return 29;
+ } else {
+ dayOfCycle = -dayOfCycle;
+ for (int i = 0; i < cycles.length; i++) {
+ if (dayOfCycle <= cycles[i]) {
+ return i - 1;
+ }
+ }
+ return 29;
+ }
+ }
+
+ /**
+ * Returns adjusted 30 year cycle starting day as Integer array from the
+ * cycle number specified.
+ *
+ * @param cycleNumber a cycle number
+ * @return an Integer array
+ */
+ int[] getAdjustedCycle(int cycleNumber) {
+ int[] cycles;
+ try {
+ cycles = ADJUSTED_CYCLE_YEARS.get(cycleNumber);
+ } catch (ArrayIndexOutOfBoundsException e) {
+ cycles = null;
+ }
+ if (cycles == null) {
+ cycles = DEFAULT_CYCLE_YEARS;
+ }
+ return cycles;
+ }
+
+ /**
+ * Returns adjusted month days as Integer array form the year specified.
+ *
+ * @param year a year
+ * @return an Integer array
+ */
+ int[] getAdjustedMonthDays(int year) {
+ int[] newMonths;
+ try {
+ newMonths = ADJUSTED_MONTH_DAYS.get(year);
+ } catch (ArrayIndexOutOfBoundsException e) {
+ newMonths = null;
+ }
+ if (newMonths == null) {
+ if (isLeapYear0(year)) {
+ newMonths = DEFAULT_LEAP_MONTH_DAYS;
+ } else {
+ newMonths = DEFAULT_MONTH_DAYS;
+ }
+ }
+ return newMonths;
+ }
+
+ /**
+ * Returns adjusted month length as Integer array form the year specified.
+ *
+ * @param year a year
+ * @return an Integer array
+ */
+ int[] getAdjustedMonthLength(int year) {
+ int[] newMonths;
+ try {
+ newMonths = ADJUSTED_MONTH_LENGTHS.get(year);
+ } catch (ArrayIndexOutOfBoundsException e) {
+ newMonths = null;
+ }
+ if (newMonths == null) {
+ if (isLeapYear0(year)) {
+ newMonths = DEFAULT_LEAP_MONTH_LENGTHS;
+ } else {
+ newMonths = DEFAULT_MONTH_LENGTHS;
+ }
+ }
+ return newMonths;
+ }
+
+ /**
+ * Returns day-of-year.
+ *
+ * @param cycleNumber a cycle number
+ * @param dayOfCycle day of cycle
+ * @param yearInCycle year in cycle
+ * @return day-of-year
+ */
+ private int getDayOfYear(int cycleNumber, int dayOfCycle, int yearInCycle) {
+ int[] cycles = getAdjustedCycle(cycleNumber);
+
+ if (dayOfCycle > 0) {
+ return dayOfCycle - cycles[yearInCycle];
+ } else {
+ return cycles[yearInCycle] + dayOfCycle;
+ }
+ }
+
+ /**
+ * Returns month-of-year. 0-based.
+ *
+ * @param dayOfYear day-of-year
+ * @param year a year
+ * @return month-of-year
+ */
+ private int getMonthOfYear(int dayOfYear, int year) {
+
+ int[] newMonths = getAdjustedMonthDays(year);
+
+ if (dayOfYear >= 0) {
+ for (int i = 0; i < newMonths.length; i++) {
+ if (dayOfYear < newMonths[i]) {
+ return i - 1;
+ }
+ }
+ return 11;
+ } else {
+ dayOfYear = (isLeapYear0(year) ? (dayOfYear + 355)
+ : (dayOfYear + 354));
+ for (int i = 0; i < newMonths.length; i++) {
+ if (dayOfYear < newMonths[i]) {
+ return i - 1;
+ }
+ }
+ return 11;
+ }
+ }
+
+ /**
+ * Returns day-of-month.
+ *
+ * @param dayOfYear day of year
+ * @param month month
+ * @param year year
+ * @return day-of-month
+ */
+ private int getDayOfMonth(int dayOfYear, int month, int year) {
+
+ int[] newMonths = getAdjustedMonthDays(year);
+
+ if (dayOfYear >= 0) {
+ if (month > 0) {
+ return dayOfYear - newMonths[month];
+ } else {
+ return dayOfYear;
+ }
+ } else {
+ dayOfYear = (isLeapYear0(year) ? (dayOfYear + 355)
+ : (dayOfYear + 354));
+ if (month > 0) {
+ return dayOfYear - newMonths[month];
+ } else {
+ return dayOfYear;
+ }
+ }
+ }
+
+
+ /**
+ * Returns month days from the beginning of year.
+ *
+ * @param month month (0-based)
+ * @parma year year
+ * @return month days from the beginning of year
+ */
+ private int getMonthDays(int month, int year) {
+ int[] newMonths = getAdjustedMonthDays(year);
+ return newMonths[month];
+ }
+
+ /**
+ * Returns month length.
+ *
+ * @param month month (0-based)
+ * @param year year
+ * @return month length
+ */
+ private int getMonthLength(int month, int year) {
+ int[] newMonths = getAdjustedMonthLength(year);
+ return newMonths[month];
+ }
+
+ /**
+ * Returns year length.
+ *
+ * @param year year
+ * @return year length
+ */
+ int getYearLength(int year) {
+
+ int cycleNumber = (year - 1) / 30;
+ int[] cycleYears;
+ try {
+ cycleYears = ADJUSTED_CYCLE_YEARS.get(cycleNumber);
+ } catch (ArrayIndexOutOfBoundsException e) {
+ cycleYears = null;
+ }
+ if (cycleYears != null) {
+ int yearInCycle = (year - 1) % 30;
+ if (yearInCycle == 29) {
+ return (int)(ADJUSTED_CYCLES[cycleNumber + 1]
+ - ADJUSTED_CYCLES[cycleNumber]
+ - cycleYears[yearInCycle]);
+ }
+ return cycleYears[yearInCycle + 1]
+ - cycleYears[yearInCycle];
+ } else {
+ return isLeapYear0(year) ? 355 : 354;
+ }
+ }
+
+
+ /**
+ * Returns maximum day-of-month.
+ *
+ * @return maximum day-of-month
+ */
+ int getMaximumDayOfMonth() {
+ return ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH];
+ }
+
+ /**
+ * Returns smallest maximum day-of-month.
+ *
+ * @return smallest maximum day-of-month
+ */
+ int getSmallestMaximumDayOfMonth() {
+ return ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH];
+ }
+
+ /**
+ * Returns maximum day-of-year.
+ *
+ * @return maximum day-of-year
+ */
+ int getMaximumDayOfYear() {
+ return ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR];
+ }
+
+ /**
+ * Returns smallest maximum day-of-year.
+ *
+ * @return smallest maximum day-of-year
+ */
+ int getSmallestMaximumDayOfYear() {
+ return ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR];
+ }
+
+ // ----- Deviation handling -----//
+
+ /**
+ * Adds deviation definition. The year and month specified should be the
+ * calculated Hijrah year and month. The month is 1 based. e.g. 9 for
+ * Ramadan (9th month) Addition of anything minus deviation days is
+ * calculated negatively in the case the user wants to subtract days from
+ * the calendar. For example, adding -1 days will subtract one day from the
+ * current date.
+ *
+ * @param startYear start year, 1 origin
+ * @param startMonth start month, 1 origin
+ * @param endYear end year, 1 origin
+ * @param endMonth end month, 1 origin
+ * @param offset offset -2, -1, +1, +2
+ */
+ private void addDeviationAsHijrah(Deviation entry) {
+ int startYear = entry.startYear;
+ int startMonth = entry.startMonth - 1 ;
+ int endYear = entry.endYear;
+ int endMonth = entry.endMonth - 1;
+ int offset = entry.offset;
+
+ if (startYear < 1) {
+ throw new IllegalArgumentException("startYear < 1");
+ }
+ if (endYear < 1) {
+ throw new IllegalArgumentException("endYear < 1");
+ }
+ if (startMonth < 0 || startMonth > 11) {
+ throw new IllegalArgumentException(
+ "startMonth < 0 || startMonth > 11");
+ }
+ if (endMonth < 0 || endMonth > 11) {
+ throw new IllegalArgumentException("endMonth < 0 || endMonth > 11");
+ }
+ if (endYear > 9999) {
+ throw new IllegalArgumentException("endYear > 9999");
+ }
+ if (endYear < startYear) {
+ throw new IllegalArgumentException("startYear > endYear");
+ }
+ if (endYear == startYear && endMonth < startMonth) {
+ throw new IllegalArgumentException(
+ "startYear == endYear && endMonth < startMonth");
+ }
+
+ // Adjusting start year.
+ boolean isStartYLeap = isLeapYear0(startYear);
+
+ // Adjusting the number of month.
+ int[] orgStartMonthNums = ADJUSTED_MONTH_DAYS.get(startYear);
+ if (orgStartMonthNums == null) {
+ if (isStartYLeap) {
+ orgStartMonthNums = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length);
+ } else {
+ orgStartMonthNums = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length);
+ }
+ }
+
+ int[] newStartMonthNums = new int[orgStartMonthNums.length];
+
+ for (int month = 0; month < 12; month++) {
+ if (month > startMonth) {
+ newStartMonthNums[month] = (orgStartMonthNums[month] - offset);
+ } else {
+ newStartMonthNums[month] = (orgStartMonthNums[month]);
+ }
+ }
+
+ ADJUSTED_MONTH_DAYS.put(startYear, newStartMonthNums);
+
+ // Adjusting the days of month.
+
+ int[] orgStartMonthLengths = ADJUSTED_MONTH_LENGTHS.get(startYear);
+ if (orgStartMonthLengths == null) {
+ if (isStartYLeap) {
+ orgStartMonthLengths = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length);
+ } else {
+ orgStartMonthLengths = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length);
+ }
+ }
+
+ int[] newStartMonthLengths = new int[orgStartMonthLengths.length];
+
+ for (int month = 0; month < 12; month++) {
+ if (month == startMonth) {
+ newStartMonthLengths[month] = orgStartMonthLengths[month] - offset;
+ } else {
+ newStartMonthLengths[month] = orgStartMonthLengths[month];
+ }
+ }
+
+ ADJUSTED_MONTH_LENGTHS.put(startYear, newStartMonthLengths);
+
+ if (startYear != endYear) {
+ // System.out.println("over year");
+ // Adjusting starting 30 year cycle.
+ int sCycleNumber = (startYear - 1) / 30;
+ int sYearInCycle = (startYear - 1) % 30; // 0-based.
+ int[] startCycles = ADJUSTED_CYCLE_YEARS.get(sCycleNumber);
+ if (startCycles == null) {
+ startCycles = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length);
+ }
+
+ for (int j = sYearInCycle + 1; j < CYCLEYEAR_START_DATE.length; j++) {
+ startCycles[j] = startCycles[j] - offset;
+ }
+
+ // System.out.println(sCycleNumber + ":" + sYearInCycle);
+ ADJUSTED_CYCLE_YEARS.put(sCycleNumber, startCycles);
+
+ int sYearInMaxY = (startYear - 1) / 30;
+ int sEndInMaxY = (endYear - 1) / 30;
+
+ if (sYearInMaxY != sEndInMaxY) {
+ // System.out.println("over 30");
+ // Adjusting starting 30 * MAX_ADJUSTED_CYCLE year cycle.
+ // System.out.println(sYearInMaxY);
+
+ for (int j = sYearInMaxY + 1; j < ADJUSTED_CYCLES.length; j++) {
+ ADJUSTED_CYCLES[j] = ADJUSTED_CYCLES[j] - offset;
+ }
+
+ // Adjusting ending 30 * MAX_ADJUSTED_CYCLE year cycles.
+ for (int j = sEndInMaxY + 1; j < ADJUSTED_CYCLES.length; j++) {
+ ADJUSTED_CYCLES[j] = ADJUSTED_CYCLES[j] + offset;
+ }
+ }
+
+ // Adjusting ending 30 year cycle.
+ int eCycleNumber = (endYear - 1) / 30;
+ int sEndInCycle = (endYear - 1) % 30; // 0-based.
+ int[] endCycles = ADJUSTED_CYCLE_YEARS.get(eCycleNumber);
+ if (endCycles == null) {
+ endCycles = Arrays.copyOf(CYCLEYEAR_START_DATE, CYCLEYEAR_START_DATE.length);
+ }
+ for (int j = sEndInCycle + 1; j < CYCLEYEAR_START_DATE.length; j++) {
+ endCycles[j] = endCycles[j] + offset;
+ }
+ ADJUSTED_CYCLE_YEARS.put(eCycleNumber, endCycles);
+ }
+
+ // Adjusting ending year.
+ boolean isEndYLeap = isLeapYear0(endYear);
+
+ int[] orgEndMonthDays = ADJUSTED_MONTH_DAYS.get(endYear);
+
+ if (orgEndMonthDays == null) {
+ if (isEndYLeap) {
+ orgEndMonthDays = Arrays.copyOf(LEAP_NUM_DAYS, LEAP_NUM_DAYS.length);
+ } else {
+ orgEndMonthDays = Arrays.copyOf(NUM_DAYS, NUM_DAYS.length);
+ }
+ }
+
+ int[] newEndMonthDays = new int[orgEndMonthDays.length];
+
+ for (int month = 0; month < 12; month++) {
+ if (month > endMonth) {
+ newEndMonthDays[month] = orgEndMonthDays[month] + offset;
+ } else {
+ newEndMonthDays[month] = orgEndMonthDays[month];
+ }
+ }
+
+ ADJUSTED_MONTH_DAYS.put(endYear, newEndMonthDays);
+
+ // Adjusting the days of month.
+ int[] orgEndMonthLengths = ADJUSTED_MONTH_LENGTHS.get(endYear);
+
+ if (orgEndMonthLengths == null) {
+ if (isEndYLeap) {
+ orgEndMonthLengths = Arrays.copyOf(LEAP_MONTH_LENGTH, LEAP_MONTH_LENGTH.length);
+ } else {
+ orgEndMonthLengths = Arrays.copyOf(MONTH_LENGTH, MONTH_LENGTH.length);
+ }
+ }
+
+ int[] newEndMonthLengths = new int[orgEndMonthLengths.length];
+
+ for (int month = 0; month < 12; month++) {
+ if (month == endMonth) {
+ newEndMonthLengths[month] = orgEndMonthLengths[month] + offset;
+ } else {
+ newEndMonthLengths[month] = orgEndMonthLengths[month];
+ }
+ }
+
+ ADJUSTED_MONTH_LENGTHS.put(endYear, newEndMonthLengths);
+
+ int[] startMonthLengths = ADJUSTED_MONTH_LENGTHS.get(startYear);
+ int[] endMonthLengths = ADJUSTED_MONTH_LENGTHS.get(endYear);
+ int[] startMonthDays = ADJUSTED_MONTH_DAYS.get(startYear);
+ int[] endMonthDays = ADJUSTED_MONTH_DAYS.get(endYear);
+
+ int startMonthLength = startMonthLengths[startMonth];
+ int endMonthLength = endMonthLengths[endMonth];
+ int startMonthDay = startMonthDays[11] + startMonthLengths[11];
+ int endMonthDay = endMonthDays[11] + endMonthLengths[11];
+
+ int maxMonthLength = ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH];
+ int leastMaxMonthLength = ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH];
+
+ if (maxMonthLength < startMonthLength) {
+ maxMonthLength = startMonthLength;
+ }
+ if (maxMonthLength < endMonthLength) {
+ maxMonthLength = endMonthLength;
+ }
+ ADJUSTED_MAX_VALUES[POSITION_DAY_OF_MONTH] = maxMonthLength;
+
+ if (leastMaxMonthLength > startMonthLength) {
+ leastMaxMonthLength = startMonthLength;
+ }
+ if (leastMaxMonthLength > endMonthLength) {
+ leastMaxMonthLength = endMonthLength;
+ }
+ ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_MONTH] = leastMaxMonthLength;
+
+ int maxMonthDay = ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR];
+ int leastMaxMonthDay = ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR];
+
+ if (maxMonthDay < startMonthDay) {
+ maxMonthDay = startMonthDay;
+ }
+ if (maxMonthDay < endMonthDay) {
+ maxMonthDay = endMonthDay;
+ }
+
+ ADJUSTED_MAX_VALUES[POSITION_DAY_OF_YEAR] = maxMonthDay;
+
+ if (leastMaxMonthDay > startMonthDay) {
+ leastMaxMonthDay = startMonthDay;
+ }
+ if (leastMaxMonthDay > endMonthDay) {
+ leastMaxMonthDay = endMonthDay;
+ }
+ ADJUSTED_LEAST_MAX_VALUES[POSITION_DAY_OF_YEAR] = leastMaxMonthDay;
+ }
+
+ /**
+ * Package private Entry for suppling deviations from the Reader.
+ * Each entry consists of a range using the Hijrah calendar,
+ * start year, month, end year, end month, and an offset.
+ * The offset is used to modify the length of the month +2, +1, -1, -2.
+ */
+ static final class Deviation {
+
+ Deviation(int startYear, int startMonth, int endYear, int endMonth, int offset) {
+ this.startYear = startYear;
+ this.startMonth = startMonth;
+ this.endYear = endYear;
+ this.endMonth = endMonth;
+ this.offset = offset;
+ }
+
+ final int startYear;
+ final int startMonth;
+ final int endYear;
+ final int endMonth;
+ final int offset;
+
+ int getStartYear() {
+ return startYear;
+ }
+
+ int getStartMonth() {
+ return startMonth;
+ }
+
+ int getEndYear() {
+ return endYear;
+ }
+
+ int getEndMonth() {
+ return endMonth;
+ }
+
+ int getOffset() {
+ return offset;
+ }
+
+ @Override
+ public String toString() {
+ return String.format("[year: %4d, month: %2d, offset: %+d]", startYear, startMonth, offset);
+ }
+ }
+
+}