/*
* Copyright 2003-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.codehaus.groovy.runtime;
import groovy.time.BaseDuration;
import groovy.time.DatumDependentDuration;
import groovy.time.Duration;
import groovy.time.TimeDuration;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
public class TimeCategory {
/*
* Methods to allow Date Duration arithmetic
*/
public static Date plus(final Date date, final BaseDuration duration) {
return duration.plus(date);
}
public static Date minus(final Date date, final BaseDuration duration) {
final Calendar cal = Calendar.getInstance();
cal.setTime(date);
cal.add(Calendar.YEAR, -duration.getYears());
cal.add(Calendar.MONTH, -duration.getMonths());
cal.add(Calendar.DAY_OF_YEAR, -duration.getDays());
cal.add(Calendar.HOUR_OF_DAY, -duration.getHours());
cal.add(Calendar.MINUTE, -duration.getMinutes());
cal.add(Calendar.SECOND, -duration.getSeconds());
cal.add(Calendar.MILLISECOND, -duration.getMillis());
return cal.getTime();
}
public static TimeZone getTimeZone(Date self) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(self);
return calendar.getTimeZone();
}
public static Duration getDaylightSavingsOffset(Date self) {
TimeZone timeZone = getTimeZone(self);
int millis = (timeZone.useDaylightTime() && timeZone.inDaylightTime(self))
? timeZone.getDSTSavings() : 0;
return new TimeDuration(0, 0, 0, millis);
}
public static Duration getDaylightSavingsOffset(BaseDuration self) {
return getDaylightSavingsOffset(new Date(self.toMilliseconds() + 1));
}
public static Duration getRelativeDaylightSavingsOffset(Date self, Date other) {
Duration d1 = getDaylightSavingsOffset(self);
Duration d2 = getDaylightSavingsOffset(other);
return new TimeDuration(0, 0, 0, (int) (d2.toMilliseconds() - d1.toMilliseconds()));
}
public static TimeDuration minus(final Date lhs, final Date rhs) {
long milliseconds = lhs.getTime() - rhs.getTime();
long days = milliseconds / (24 * 60 * 60 * 1000);
milliseconds -= days * 24 * 60 * 60 * 1000;
int hours = (int) (milliseconds / (60 * 60 * 1000));
milliseconds -= hours * 60 * 60 * 1000;
int minutes = (int) (milliseconds / (60 * 1000));
milliseconds -= minutes * 60 * 1000;
int seconds = (int) (milliseconds / 1000);
milliseconds -= seconds * 1000;
return new TimeDuration((int) days, hours, minutes, seconds, (int) milliseconds);
}
/*
* Methods on Integer to implement 1.month, 4.years etc.
*/
public static DatumDependentDuration getMonths(final Integer self) {
return new DatumDependentDuration(0, self.intValue(), 0, 0, 0, 0, 0);
}
public static DatumDependentDuration getMonth(final Integer self) {
return getMonths(self);
}
public static DatumDependentDuration getYears(final Integer self) {
return new DatumDependentDuration(self.intValue(), 0, 0, 0, 0, 0, 0);
}
public static DatumDependentDuration getYear(final Integer self) {
return getYears(self);
}
/*
* Methods on Integer to implement 1.week, 4.days etc.
*/
public static Duration getWeeks(final Integer self) {
return new Duration(self.intValue() * 7, 0, 0, 0, 0);
}
public static Duration getWeek(final Integer self) {
return getWeeks(self);
}
public static Duration getDays(final Integer self) {
return new Duration(self.intValue(), 0, 0, 0, 0);
}
public static Duration getDay(final Integer self) {
return getDays(self);
}
public static TimeDuration getHours(final Integer self) {
return new TimeDuration(0, self.intValue(), 0, 0, 0);
}
public static TimeDuration getHour(final Integer self) {
return getHours(self);
}
public static TimeDuration getMinutes(final Integer self) {
return new TimeDuration(0, 0, self.intValue(), 0, 0);
}
public static TimeDuration getMinute(final Integer self) {
return getMinutes(self);
}
public static TimeDuration getSeconds(final Integer self) {
return new TimeDuration(0, 0, 0, self.intValue(), 0);
}
public static TimeDuration getSecond(final Integer self) {
return getSeconds(self);
}
public static TimeDuration getMilliseconds(final Integer self) {
return new TimeDuration(0, 0, 0, 0, self.intValue());
}
public static TimeDuration getMillisecond(final Integer self) {
return getMilliseconds(self);
}
}