groovy.time.Duration Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package groovy.time;
import java.util.Calendar;
import java.util.Date;
/**
* Duration represents time periods which have values independent of the context.
* So, whilst we can't say how long a month is without knowing the year and the name of the month,
* we know how long a day is independent of the date.
*
* This is not 100% true for days.
* Days can actually be 23, 24 or 25 hours long (due to daylight saving adjustments.)
*
* If you ask Duration to convert itself to milliseconds then it will work on the basis of 24 hours
* in a day. If you add or subtract it from a date it will take daylight saving into account.
*
* @author John Wilson [email protected]
*/
public class Duration extends BaseDuration {
public Duration(final int days, final int hours, final int minutes, final int seconds, final int millis) {
super(days, hours, minutes, seconds, millis);
}
public Duration plus(final Duration rhs) {
return new Duration(this.getDays() + rhs.getDays(), this.getHours() + rhs.getHours(),
this.getMinutes() + rhs.getMinutes(), this.getSeconds() + rhs.getSeconds(),
this.getMillis() + rhs.getMillis());
}
public Duration plus(final TimeDuration rhs) {
return rhs.plus(this);
}
public DatumDependentDuration plus(final DatumDependentDuration rhs) {
return rhs.plus(this);
}
public Duration minus(final Duration rhs) {
return new Duration(this.getDays() - rhs.getDays(), this.getHours() - rhs.getHours(),
this.getMinutes() - rhs.getMinutes(), this.getSeconds() - rhs.getSeconds(),
this.getMillis() - rhs.getMillis());
}
public TimeDuration minus(final TimeDuration rhs) {
return new TimeDuration(this.getDays() - rhs.getDays(), this.getHours() - rhs.getHours(),
this.getMinutes() - rhs.getMinutes(), this.getSeconds() - rhs.getSeconds(),
this.getMillis() - rhs.getMillis());
}
public DatumDependentDuration minus(final DatumDependentDuration rhs) {
return new DatumDependentDuration(-rhs.getYears(), -rhs.getMonths(),
this.getDays() - rhs.getDays(), this.getHours() - rhs.getHours(),
this.getMinutes() - rhs.getMinutes(), this.getSeconds() - rhs.getSeconds(),
this.getMillis() - rhs.getMillis());
}
public TimeDatumDependentDuration minus(final TimeDatumDependentDuration rhs) {
return new TimeDatumDependentDuration(-rhs.getYears(), -rhs.getMonths(),
this.getDays() - rhs.getDays(), this.getHours() - rhs.getHours(),
this.getMinutes() - rhs.getMinutes(), this.getSeconds() - rhs.getSeconds(),
this.getMillis() - rhs.getMillis());
}
public long toMilliseconds() {
return ((((((long)(this.getDays() * 24 ) + this.getHours()) * 60 + this.getMinutes()) * 60) + this.getSeconds()) * 1000) + this.getMillis();
}
public Date getAgo() {
final Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, -this.getDays());
cal.add(Calendar.HOUR_OF_DAY, -this.getHours());
cal.add(Calendar.MINUTE, -this.getMinutes());
cal.add(Calendar.SECOND, -this.getSeconds());
cal.add(Calendar.MILLISECOND, -this.getMillis());
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return new Date(cal.getTimeInMillis());
}
public From getFrom() {
return new From() {
public Date getNow() {
final Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, Duration.this.getDays());
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return new Date(cal.getTimeInMillis());
}
};
}
}