| /* |
| * Copyright (c) 2003, 2005, 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.util.Locale; |
| import java.util.TimeZone; |
| |
| /** |
| * The class <code>Era</code> represents a calendar era that defines a |
| * period of time in which the same year numbering is used. For |
| * example, Gregorian year 2004 is <I>Heisei</I> 16 in the Japanese |
| * calendar system. An era starts at any point of time (Gregorian) that is |
| * represented by <code>CalendarDate</code>. |
| * |
| * <p><code>Era</code>s that are applicable to a particular calendar |
| * system can be obtained by calling {@link CalendarSystem#getEras} |
| * one of which can be used to specify a date in |
| * <code>CalendarDate</code>. |
| * |
| * <p>The following era names are defined in this release. |
| * <!-- TODO: use HTML table --> |
| * <pre><tt> |
| * Calendar system Era name Since (in Gregorian) |
| * ----------------------------------------------------------------------- |
| * Japanese calendar Meiji 1868-01-01 midnight local time |
| * Taisho 1912-07-30 midnight local time |
| * Showa 1926-12-26 midnight local time |
| * Heisei 1989-01-08 midnight local time |
| * Julian calendar BeforeCommonEra -292275055-05-16T16:47:04.192Z |
| * CommonEra 0000-12-30 midnight local time |
| * Taiwanese calendar MinGuo 1911-01-01 midnight local time |
| * Thai Buddhist calendar BuddhistEra -543-01-01 midnight local time |
| * ----------------------------------------------------------------------- |
| * </tt></pre> |
| * |
| * @author Masayoshi Okutsu |
| * @since 1.5 |
| */ |
| |
| public final class Era { |
| private final String name; |
| private final String abbr; |
| private final long since; |
| private final CalendarDate sinceDate; |
| private final boolean localTime; |
| |
| /** |
| * Constructs an <code>Era</code> instance. |
| * |
| * @param name the era name (e.g., "BeforeCommonEra" for the Julian calendar system) |
| * @param abbr the abbreviation of the era name (e.g., "B.C.E." for "BeforeCommonEra") |
| * @param since the time (millisecond offset from January 1, 1970 |
| * (Gregorian) UTC or local time) when the era starts, inclusive. |
| * @param localTime <code>true</code> if <code>since</code> |
| * specifies a local time; <code>false</code> if |
| * <code>since</code> specifies UTC |
| */ |
| public Era(String name, String abbr, long since, boolean localTime) { |
| this.name = name; |
| this.abbr = abbr; |
| this.since = since; |
| this.localTime = localTime; |
| Gregorian gcal = CalendarSystem.getGregorianCalendar(); |
| BaseCalendar.Date d = (BaseCalendar.Date) gcal.newCalendarDate(null); |
| gcal.getCalendarDate(since, d); |
| sinceDate = new ImmutableGregorianDate(d); |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public String getDisplayName(Locale locale) { |
| return name; |
| } |
| |
| public String getAbbreviation() { |
| return abbr; |
| } |
| |
| public String getDiaplayAbbreviation(Locale locale) { |
| return abbr; |
| } |
| |
| public long getSince(TimeZone zone) { |
| if (zone == null || !localTime) { |
| return since; |
| } |
| int offset = zone.getOffset(since); |
| return since - offset; |
| } |
| |
| public CalendarDate getSinceDate() { |
| return sinceDate; |
| } |
| |
| public boolean isLocalTime() { |
| return localTime; |
| } |
| |
| public boolean equals(Object o) { |
| if (!(o instanceof Era)) { |
| return false; |
| } |
| Era that = (Era) o; |
| return name.equals(that.name) |
| && abbr.equals(that.abbr) |
| && since == that.since |
| && localTime == that.localTime; |
| } |
| |
| private int hash = 0; |
| |
| public int hashCode() { |
| if (hash == 0) { |
| hash = name.hashCode() ^ abbr.hashCode() ^ (int)since ^ (int)(since >> 32) |
| ^ (localTime ? 1 : 0); |
| } |
| return hash; |
| } |
| |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append('['); |
| sb.append(getName()).append(" ("); |
| sb.append(getAbbreviation()).append(')'); |
| sb.append(" since ").append(getSinceDate()); |
| if (localTime) { |
| sb.setLength(sb.length() - 1); // remove 'Z' |
| sb.append(" local time"); |
| } |
| sb.append(']'); |
| return sb.toString(); |
| } |
| } |