Caldavsync Sources: comparison src/net/fortuna/ical4j/model/TimeZone.java

--1:000000000000
+:dc794a5dd106
+/**
+* Copyright (c) 2012, Ben Fortuna
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+*  o Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*
+*  o 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.
+*
+*  o Neither the name of Ben Fortuna nor the names of any other 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 net.fortuna.ical4j.model;
+import java.util.Calendar;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+import net.fortuna.ical4j.model.component.Daylight;
+import net.fortuna.ical4j.model.component.Observance;
+import net.fortuna.ical4j.model.component.VTimeZone;
+import net.fortuna.ical4j.model.property.TzId;
+import net.fortuna.ical4j.model.property.TzOffsetTo;
+/**
+* $Id$
+*
+* Created on 13/09/2005
+*
+* A Java timezone implementation based on an underlying VTimeZone
+* definition.
+* @author Ben Fortuna
+*/
+public class TimeZone extends java.util.TimeZone {
+private static final long serialVersionUID = -5620979316746547234L;
+private final VTimeZone vTimeZone;
+private final int rawOffset;
+/**
+* Constructs a new instance based on the specified VTimeZone.
+* @param vTimeZone a VTIMEZONE object instance
+*/
+public TimeZone(final VTimeZone vTimeZone) {
+this.vTimeZone = vTimeZone;
+final TzId tzId = (TzId) vTimeZone.getProperty(Property.TZID);
+setID(tzId.getValue());
+this.rawOffset = getRawOffset(vTimeZone);
+}
+/**
+* {@inheritDoc}
+*/
+public final int getOffset(final int era, final int year, final int month, final int day,
+final int dayOfWeek, final int milliseconds) {
+final Calendar cal = Calendar.getInstance();
+cal.set(Calendar.ERA, era);
+cal.set(Calendar.YEAR, year);
+cal.set(Calendar.MONTH, month);
+cal.set(Calendar.DAY_OF_YEAR, day);
+cal.set(Calendar.DAY_OF_WEEK, dayOfWeek);
+cal.set(Calendar.MILLISECOND, milliseconds);
+final Observance observance = vTimeZone.getApplicableObservance(new DateTime(cal.getTime()));
+if (observance != null) {
+final TzOffsetTo offset = (TzOffsetTo) observance.getProperty(Property.TZOFFSETTO);
+return (int) offset.getOffset().getOffset();
+}
+return 0;
+}
+/**
+* {@inheritDoc}
+*/
+public int getOffset(long date) {
+final Observance observance = vTimeZone.getApplicableObservance(new DateTime(date));
+if (observance != null) {
+final TzOffsetTo offset = (TzOffsetTo) observance.getProperty(Property.TZOFFSETTO);
+return (int) offset.getOffset().getOffset();
+}
+return 0;
+}
+/**
+* {@inheritDoc}
+*/
+public final int getRawOffset() {
+return rawOffset;
+}
+/**
+* Determines if the specified date is in daylight time according to
+* this timezone. This is done by finding the latest supporting
+* observance for the specified date and identifying whether it is
+* daylight time.
+* @param date a date instance
+* @return true if the specified date is in daylight time, otherwise false
+*/
+public final boolean inDaylightTime(final Date date) {
+final Observance observance = vTimeZone.getApplicableObservance(new DateTime(date));
+return (observance != null && observance instanceof Daylight);
+}
+/**
+* {@inheritDoc}
+*/
+public final void setRawOffset(final int offsetMillis) {
+throw new UnsupportedOperationException("Updates to the VTIMEZONE object must be performed directly");
+}
+/**
+* {@inheritDoc}
+*/
+public final boolean useDaylightTime() {
+final ComponentList daylights = vTimeZone.getObservances().getComponents(Observance.DAYLIGHT);
+return (!daylights.isEmpty());
+}
+/**
+* @return Returns the VTimeZone backing this instance.
+*/
+public final VTimeZone getVTimeZone() {
+return vTimeZone;
+}
+private static final int getRawOffset(VTimeZone vt) {
+// per spec, rawoffset is the raw offset at the current date
+final DateTime now = new DateTime();
+List seasonalTimes = vt.getObservances().getComponents(Observance.STANDARD);
+// if no standard time use daylight time..
+if (seasonalTimes.size() == 0) {
+seasonalTimes = vt.getObservances().getComponents(Observance.DAYLIGHT);
+}
+Observance latestSeasonalTime = null;
+Date latestOnset = null;
+for (int i = 0; i < seasonalTimes.size(); i++) {
+Observance seasonalTime = (Observance) seasonalTimes.get(i);
+Date onset = seasonalTime.getLatestOnset(now);
+if (onset == null) {
+continue;
+}
+if (latestOnset == null || onset.after(latestOnset)) {
+latestOnset = onset;
+latestSeasonalTime = seasonalTime;
+}
+}
+if (latestSeasonalTime != null) {
+final TzOffsetTo offsetTo = (TzOffsetTo) latestSeasonalTime.getProperty(Property.TZOFFSETTO);
+if (offsetTo != null) {
+return (int) offsetTo.getOffset().getOffset();
+}
+}
+return 0;
+}
+}

Caldavsync Sources / file comparison

comparison: src/net/fortuna/ical4j/model/TimeZone.java

src/net/fortuna/ical4j/model/TimeZone.java