1.1 --- a/src/net/fortuna/ical4j/model/TimeZone.java Thu Feb 12 18:02:00 2015 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,219 +0,0 @@
1.4 -/**
1.5 - * Copyright (c) 2012, Ben Fortuna
1.6 - * All rights reserved.
1.7 - *
1.8 - * Redistribution and use in source and binary forms, with or without
1.9 - * modification, are permitted provided that the following conditions
1.10 - * are met:
1.11 - *
1.12 - * o Redistributions of source code must retain the above copyright
1.13 - * notice, this list of conditions and the following disclaimer.
1.14 - *
1.15 - * o Redistributions in binary form must reproduce the above copyright
1.16 - * notice, this list of conditions and the following disclaimer in the
1.17 - * documentation and/or other materials provided with the distribution.
1.18 - *
1.19 - * o Neither the name of Ben Fortuna nor the names of any other contributors
1.20 - * may be used to endorse or promote products derived from this software
1.21 - * without specific prior written permission.
1.22 - *
1.23 - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.24 - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.25 - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.26 - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1.27 - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
1.28 - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
1.29 - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
1.30 - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
1.31 - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
1.32 - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
1.33 - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.34 - */
1.35 -package net.fortuna.ical4j.model;
1.36 -
1.37 -import java.util.Calendar;
1.38 -import java.util.Collections;
1.39 -import java.util.Date;
1.40 -import java.util.List;
1.41 -
1.42 -import net.fortuna.ical4j.model.component.Daylight;
1.43 -import net.fortuna.ical4j.model.component.Observance;
1.44 -import net.fortuna.ical4j.model.component.VTimeZone;
1.45 -import net.fortuna.ical4j.model.property.TzId;
1.46 -import net.fortuna.ical4j.model.property.TzOffsetTo;
1.47 -
1.48 -/**
1.49 - * $Id$
1.50 - *
1.51 - * Created on 13/09/2005
1.52 - *
1.53 - * A Java timezone implementation based on an underlying VTimeZone
1.54 - * definition.
1.55 - * @author Ben Fortuna
1.56 - */
1.57 -public class TimeZone extends java.util.TimeZone {
1.58 -
1.59 - private static final long serialVersionUID = -5620979316746547234L;
1.60 -
1.61 - private final VTimeZone vTimeZone;
1.62 - private final int rawOffset;
1.63 -
1.64 - /**
1.65 - * Constructs a new instance based on the specified VTimeZone.
1.66 - * @param vTimeZone a VTIMEZONE object instance
1.67 - */
1.68 - public TimeZone(final VTimeZone vTimeZone) {
1.69 - this.vTimeZone = vTimeZone;
1.70 - final TzId tzId = (TzId) vTimeZone.getProperty(Property.TZID);
1.71 - setID(tzId.getValue());
1.72 - this.rawOffset = getRawOffset(vTimeZone);
1.73 - }
1.74 -
1.75 - /**
1.76 - * {@inheritDoc}
1.77 - */
1.78 - public final int getOffset(final int era, final int year, final int month, final int dayOfMonth,
1.79 - final int dayOfWeek, final int milliseconds) {
1.80 -
1.81 - // calculate time of day
1.82 - int ms = milliseconds;
1.83 - final int hour = ms / 3600000;
1.84 - ms -= hour*3600000;
1.85 - final int minute = ms / 60000;
1.86 - ms -= minute*60000;
1.87 - final int second = ms / 1000;
1.88 - ms -= second*1000;
1.89 -
1.90 - final Calendar cal = Calendar.getInstance();
1.91 - cal.clear(); // don't retain current date/time, it may disturb the calculation
1.92 -
1.93 - // set date and time
1.94 - cal.set(Calendar.ERA, era);
1.95 - cal.set(Calendar.DAY_OF_WEEK, dayOfWeek);
1.96 - cal.set(year, month, dayOfMonth, hour, minute, second);
1.97 - cal.set(Calendar.MILLISECOND, ms);
1.98 -
1.99 - final Observance observance = vTimeZone.getApplicableObservance(new DateTime(cal.getTime()));
1.100 - if (observance != null) {
1.101 - final TzOffsetTo offset = (TzOffsetTo) observance.getProperty(Property.TZOFFSETTO);
1.102 - return (int) offset.getOffset().getOffset();
1.103 - }
1.104 - return 0;
1.105 - }
1.106 -
1.107 - /**
1.108 - * {@inheritDoc}
1.109 - */
1.110 - public int getOffset(long date) {
1.111 - final Observance observance = vTimeZone.getApplicableObservance(new DateTime(date));
1.112 - if (observance != null) {
1.113 - final TzOffsetTo offset = (TzOffsetTo) observance.getProperty(Property.TZOFFSETTO);
1.114 - if (offset.getOffset().getOffset() < getRawOffset()) {
1.115 - return getRawOffset();
1.116 - }
1.117 - else {
1.118 - return (int) offset.getOffset().getOffset();
1.119 - }
1.120 - }
1.121 - return 0;
1.122 - }
1.123 -
1.124 - /**
1.125 - * {@inheritDoc}
1.126 - */
1.127 - public final int getRawOffset() {
1.128 - return rawOffset;
1.129 - }
1.130 -
1.131 - /**
1.132 - * Determines if the specified date is in daylight time according to
1.133 - * this timezone. This is done by finding the latest supporting
1.134 - * observance for the specified date and identifying whether it is
1.135 - * daylight time.
1.136 - * @param date a date instance
1.137 - * @return true if the specified date is in daylight time, otherwise false
1.138 - */
1.139 - public final boolean inDaylightTime(final Date date) {
1.140 - final Observance observance = vTimeZone.getApplicableObservance(new DateTime(date));
1.141 - return (observance != null && observance instanceof Daylight);
1.142 - }
1.143 -
1.144 - /**
1.145 - * {@inheritDoc}
1.146 - */
1.147 - public final void setRawOffset(final int offsetMillis) {
1.148 - throw new UnsupportedOperationException("Updates to the VTIMEZONE object must be performed directly");
1.149 - }
1.150 -
1.151 - /**
1.152 - * {@inheritDoc}
1.153 - */
1.154 - public final boolean useDaylightTime() {
1.155 - final ComponentList daylights = vTimeZone.getObservances().getComponents(Observance.DAYLIGHT);
1.156 - return (!daylights.isEmpty());
1.157 - }
1.158 -
1.159 - /**
1.160 - * @return Returns the VTimeZone backing this instance.
1.161 - */
1.162 - public final VTimeZone getVTimeZone() {
1.163 - return vTimeZone;
1.164 - }
1.165 -
1.166 - private static final int getRawOffset(VTimeZone vt) {
1.167 -
1.168 - List seasonalTimes = vt.getObservances().getComponents(Observance.STANDARD);
1.169 - // if no standard time use daylight time..
1.170 - if (seasonalTimes.isEmpty()) {
1.171 - seasonalTimes = vt.getObservances().getComponents(Observance.DAYLIGHT);
1.172 - if (seasonalTimes.isEmpty()) {
1.173 - return 0;
1.174 - }
1.175 - }
1.176 - Observance latestSeasonalTime = null;
1.177 - if (seasonalTimes.size() > 1) {
1.178 - // per java spec and when dealing with historical time,
1.179 - // rawoffset is the raw offset at the current date
1.180 - final DateTime now = new DateTime();
1.181 - Date latestOnset = null;
1.182 - for (int i = 0; i < seasonalTimes.size(); i++) {
1.183 - Observance seasonalTime = (Observance) seasonalTimes.get(i);
1.184 - Date onset = seasonalTime.getLatestOnset(now);
1.185 - if (onset == null) {
1.186 - continue;
1.187 - }
1.188 - if (latestOnset == null || onset.after(latestOnset)) {
1.189 - latestOnset = onset;
1.190 - latestSeasonalTime = seasonalTime;
1.191 - }
1.192 - }
1.193 - } else {
1.194 - latestSeasonalTime = (Observance)seasonalTimes.get(0);
1.195 - }
1.196 - if (latestSeasonalTime != null) {
1.197 - final TzOffsetTo offsetTo = (TzOffsetTo) latestSeasonalTime.getProperty(Property.TZOFFSETTO);
1.198 - if (offsetTo != null) {
1.199 - return (int) offsetTo.getOffset().getOffset();
1.200 - }
1.201 - }
1.202 - return 0;
1.203 - }
1.204 -
1.205 - public boolean equals(Object o) {
1.206 - if (this == o) return true;
1.207 - if (o == null || getClass() != o.getClass()) return false;
1.208 -
1.209 - TimeZone timeZone = (TimeZone) o;
1.210 -
1.211 - if (rawOffset != timeZone.rawOffset) return false;
1.212 - if (vTimeZone != null ? !vTimeZone.equals(timeZone.vTimeZone) : timeZone.vTimeZone != null) return false;
1.213 -
1.214 - return true;
1.215 - }
1.216 -
1.217 - public int hashCode() {
1.218 - int result = vTimeZone != null ? vTimeZone.hashCode() : 0;
1.219 - result = 31 * result + rawOffset;
1.220 - return result;
1.221 - }
1.222 -}
