| /* |
| * Copyright (c) 2005, 2014, 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. |
| */ |
| |
| package sun.util.calendar; |
| |
| import java.security.AccessController; |
| import java.util.TimeZone; |
| import sun.security.action.GetPropertyAction; |
| |
| /** |
| * |
| * @author Masayoshi Okutsu |
| * @since 1.6 |
| */ |
| |
| public class LocalGregorianCalendar extends BaseCalendar { |
| private static final Era[] JAPANESE_ERAS = { |
| new Era("Meiji", "M", -3218832000000L, true), |
| new Era("Taisho", "T", -1812153600000L, true), |
| new Era("Showa", "S", -1357603200000L, true), |
| new Era("Heisei", "H", 600220800000L, true), |
| }; |
| |
| private static boolean isValidEra(Era newEra, Era[] eras) { |
| Era last = eras[eras.length - 1]; |
| if (last.getSinceDate().getYear() >= newEra.getSinceDate().getYear()) { |
| return false; |
| } |
| // The new era name should be unique. Its abbr may not. |
| String newName = newEra.getName(); |
| for (Era era : eras) { |
| if (era.getName().equals(newName)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private String name; |
| private Era[] eras; |
| |
| public static class Date extends BaseCalendar.Date { |
| |
| protected Date() { |
| super(); |
| } |
| |
| protected Date(TimeZone zone) { |
| super(zone); |
| } |
| |
| private int gregorianYear = FIELD_UNDEFINED; |
| |
| @Override |
| public Date setEra(Era era) { |
| if (getEra() != era) { |
| super.setEra(era); |
| gregorianYear = FIELD_UNDEFINED; |
| } |
| return this; |
| } |
| |
| @Override |
| public Date addYear(int localYear) { |
| super.addYear(localYear); |
| gregorianYear += localYear; |
| return this; |
| } |
| |
| @Override |
| public Date setYear(int localYear) { |
| if (getYear() != localYear) { |
| super.setYear(localYear); |
| gregorianYear = FIELD_UNDEFINED; |
| } |
| return this; |
| } |
| |
| @Override |
| public int getNormalizedYear() { |
| return gregorianYear; |
| } |
| |
| @Override |
| public void setNormalizedYear(int normalizedYear) { |
| this.gregorianYear = normalizedYear; |
| } |
| |
| void setLocalEra(Era era) { |
| super.setEra(era); |
| } |
| |
| void setLocalYear(int year) { |
| super.setYear(year); |
| } |
| |
| @Override |
| public String toString() { |
| String time = super.toString(); |
| time = time.substring(time.indexOf('T')); |
| StringBuffer sb = new StringBuffer(); |
| Era era = getEra(); |
| if (era != null) { |
| String abbr = era.getAbbreviation(); |
| if (abbr != null) { |
| sb.append(abbr); |
| } |
| } |
| sb.append(getYear()).append('.'); |
| CalendarUtils.sprintf0d(sb, getMonth(), 2).append('.'); |
| CalendarUtils.sprintf0d(sb, getDayOfMonth(), 2); |
| sb.append(time); |
| return sb.toString(); |
| } |
| } |
| |
| static LocalGregorianCalendar getLocalGregorianCalendar(String name) { |
| // Only the Japanese calendar is supported. |
| if (!"japanese".equals(name)) { |
| return null; |
| } |
| |
| // Append an era to the predefined eras if it's given by the property. |
| String prop = GetPropertyAction |
| .privilegedGetProperty("jdk.calendar.japanese.supplemental.era"); |
| if (prop != null) { |
| Era era = parseEraEntry(prop); |
| if (era != null) { |
| if (isValidEra(era, JAPANESE_ERAS)) { |
| int length = JAPANESE_ERAS.length; |
| Era[] eras = new Era[length + 1]; |
| System.arraycopy(JAPANESE_ERAS, 0, eras, 0, length); |
| eras[length] = era; |
| return new LocalGregorianCalendar(name, eras); |
| } |
| } |
| } |
| return new LocalGregorianCalendar(name, JAPANESE_ERAS); |
| } |
| |
| private static Era parseEraEntry(String entry) { |
| String[] keyValuePairs = entry.split(","); |
| String eraName = null; |
| boolean localTime = true; |
| long since = 0; |
| String abbr = null; |
| |
| for (String item : keyValuePairs) { |
| String[] keyvalue = item.split("="); |
| if (keyvalue.length != 2) { |
| return null; |
| } |
| String key = keyvalue[0].trim(); |
| String value = keyvalue[1].trim(); |
| switch (key) { |
| case "name": |
| eraName = value; |
| break; |
| case "since": |
| if (value.endsWith("u")) { |
| localTime = false; |
| value = value.substring(0, value.length() - 1); |
| } |
| try { |
| since = Long.parseLong(value); |
| } catch (NumberFormatException e) { |
| return null; |
| } |
| break; |
| case "abbr": |
| abbr = value; |
| break; |
| default: |
| return null; |
| } |
| } |
| if (eraName == null || eraName.isEmpty() |
| || abbr == null || abbr.isEmpty()) { |
| return null; |
| } |
| return new Era(eraName, abbr, since, localTime); |
| } |
| |
| private LocalGregorianCalendar(String name, Era[] eras) { |
| this.name = name; |
| this.eras = eras; |
| setEras(eras); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public Date getCalendarDate() { |
| return getCalendarDate(System.currentTimeMillis(), newCalendarDate()); |
| } |
| |
| @Override |
| public Date getCalendarDate(long millis) { |
| return getCalendarDate(millis, newCalendarDate()); |
| } |
| |
| @Override |
| public Date getCalendarDate(long millis, TimeZone zone) { |
| return getCalendarDate(millis, newCalendarDate(zone)); |
| } |
| |
| @Override |
| public Date getCalendarDate(long millis, CalendarDate date) { |
| Date ldate = (Date) super.getCalendarDate(millis, date); |
| return adjustYear(ldate, millis, ldate.getZoneOffset()); |
| } |
| |
| private Date adjustYear(Date ldate, long millis, int zoneOffset) { |
| int i; |
| for (i = eras.length - 1; i >= 0; --i) { |
| Era era = eras[i]; |
| long since = era.getSince(null); |
| if (era.isLocalTime()) { |
| since -= zoneOffset; |
| } |
| if (millis >= since) { |
| ldate.setLocalEra(era); |
| int y = ldate.getNormalizedYear() - era.getSinceDate().getYear() + 1; |
| ldate.setLocalYear(y); |
| break; |
| } |
| } |
| if (i < 0) { |
| ldate.setLocalEra(null); |
| ldate.setLocalYear(ldate.getNormalizedYear()); |
| } |
| ldate.setNormalized(true); |
| return ldate; |
| } |
| |
| @Override |
| public Date newCalendarDate() { |
| return new Date(); |
| } |
| |
| @Override |
| public Date newCalendarDate(TimeZone zone) { |
| return new Date(zone); |
| } |
| |
| @Override |
| public boolean validate(CalendarDate date) { |
| Date ldate = (Date) date; |
| Era era = ldate.getEra(); |
| if (era != null) { |
| if (!validateEra(era)) { |
| return false; |
| } |
| ldate.setNormalizedYear(era.getSinceDate().getYear() + ldate.getYear() - 1); |
| Date tmp = newCalendarDate(date.getZone()); |
| tmp.setEra(era).setDate(date.getYear(), date.getMonth(), date.getDayOfMonth()); |
| normalize(tmp); |
| if (tmp.getEra() != era) { |
| return false; |
| } |
| } else { |
| if (date.getYear() >= eras[0].getSinceDate().getYear()) { |
| return false; |
| } |
| ldate.setNormalizedYear(ldate.getYear()); |
| } |
| return super.validate(ldate); |
| } |
| |
| private boolean validateEra(Era era) { |
| for (Era era1 : eras) { |
| if (era == era1) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean normalize(CalendarDate date) { |
| if (date.isNormalized()) { |
| return true; |
| } |
| |
| normalizeYear(date); |
| Date ldate = (Date) date; |
| |
| // Normalize it as a Gregorian date and get its millisecond value |
| super.normalize(ldate); |
| |
| boolean hasMillis = false; |
| long millis = 0; |
| int year = ldate.getNormalizedYear(); |
| int i; |
| Era era = null; |
| for (i = eras.length - 1; i >= 0; --i) { |
| era = eras[i]; |
| if (era.isLocalTime()) { |
| CalendarDate sinceDate = era.getSinceDate(); |
| int sinceYear = sinceDate.getYear(); |
| if (year > sinceYear) { |
| break; |
| } |
| if (year == sinceYear) { |
| int month = ldate.getMonth(); |
| int sinceMonth = sinceDate.getMonth(); |
| if (month > sinceMonth) { |
| break; |
| } |
| if (month == sinceMonth) { |
| int day = ldate.getDayOfMonth(); |
| int sinceDay = sinceDate.getDayOfMonth(); |
| if (day > sinceDay) { |
| break; |
| } |
| if (day == sinceDay) { |
| long timeOfDay = ldate.getTimeOfDay(); |
| long sinceTimeOfDay = sinceDate.getTimeOfDay(); |
| if (timeOfDay >= sinceTimeOfDay) { |
| break; |
| } |
| --i; |
| break; |
| } |
| } |
| } |
| } else { |
| if (!hasMillis) { |
| millis = super.getTime(date); |
| hasMillis = true; |
| } |
| |
| long since = era.getSince(date.getZone()); |
| if (millis >= since) { |
| break; |
| } |
| } |
| } |
| if (i >= 0) { |
| ldate.setLocalEra(era); |
| @SuppressWarnings("null") |
| int y = ldate.getNormalizedYear() - era.getSinceDate().getYear() + 1; |
| ldate.setLocalYear(y); |
| } else { |
| // Set Gregorian year with no era |
| ldate.setEra(null); |
| ldate.setLocalYear(year); |
| ldate.setNormalizedYear(year); |
| } |
| ldate.setNormalized(true); |
| return true; |
| } |
| |
| @Override |
| void normalizeMonth(CalendarDate date) { |
| normalizeYear(date); |
| super.normalizeMonth(date); |
| } |
| |
| void normalizeYear(CalendarDate date) { |
| Date ldate = (Date) date; |
| // Set the supposed-to-be-correct Gregorian year first |
| // e.g., Showa 90 becomes 2015 (1926 + 90 - 1). |
| Era era = ldate.getEra(); |
| if (era == null || !validateEra(era)) { |
| ldate.setNormalizedYear(ldate.getYear()); |
| } else { |
| ldate.setNormalizedYear(era.getSinceDate().getYear() + ldate.getYear() - 1); |
| } |
| } |
| |
| /** |
| * Returns whether the specified Gregorian year is a leap year. |
| * @see #isLeapYear(Era, int) |
| */ |
| @Override |
| public boolean isLeapYear(int gregorianYear) { |
| return CalendarUtils.isGregorianLeapYear(gregorianYear); |
| } |
| |
| public boolean isLeapYear(Era era, int year) { |
| if (era == null) { |
| return isLeapYear(year); |
| } |
| int gyear = era.getSinceDate().getYear() + year - 1; |
| return isLeapYear(gyear); |
| } |
| |
| @Override |
| public void getCalendarDateFromFixedDate(CalendarDate date, long fixedDate) { |
| Date ldate = (Date) date; |
| super.getCalendarDateFromFixedDate(ldate, fixedDate); |
| adjustYear(ldate, (fixedDate - EPOCH_OFFSET) * DAY_IN_MILLIS, 0); |
| } |
| } |