/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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
* "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 groovy.time;
import java.util.
Calendar;
import java.util.
Date;
/**
* DatumDependentDuration represents durations whose length in milliseconds
* cannot be determined without knowing the datum point.
* <p>
* I don't know how many days in a year unless I know if it's a leap year or not.
* <p>
* I don't know how many days in a month unless I know the name of the month
* (and if it's a leap year if the month is February)
*
* @author John Wilson tug@wilson.co.uk
*/
public class
DatumDependentDuration extends
BaseDuration {
public
DatumDependentDuration(final int
years, final int
months, final int
days, final int
hours, final int
minutes, final int
seconds, final int
millis) {
super(
years,
months,
days,
hours,
minutes,
seconds,
millis);
}
public int
getMonths() {
return this.
months;
}
public int
getYears() {
return this.
years;
}
public
DatumDependentDuration plus(final
DatumDependentDuration rhs) {
return new
DatumDependentDuration(this.
getYears() +
rhs.
getYears(), this.
getMonths() +
rhs.
getMonths(),
this.
getDays() +
rhs.
getDays(), this.
getHours() +
rhs.
getHours(),
this.
getMinutes() +
rhs.
getMinutes(), this.
getSeconds() +
rhs.
getSeconds(),
this.
getMillis() +
rhs.
getMillis());
}
public
DatumDependentDuration plus(final
TimeDatumDependentDuration rhs) {
return
rhs.
plus(this);
}
public
DatumDependentDuration plus(final
Duration rhs) {
return new
DatumDependentDuration(this.
getYears(), this.
getMonths(),
this.
getDays() +
rhs.
getDays(), this.
getHours() +
rhs.
getHours(),
this.
getMinutes() +
rhs.
getMinutes(), this.
getSeconds() +
rhs.
getSeconds(),
this.
getMillis() +
rhs.
getMillis());
}
public
DatumDependentDuration plus(final
TimeDuration rhs) {
return
rhs.
plus(this);
}
public
DatumDependentDuration minus(final
DatumDependentDuration rhs) {
return new
DatumDependentDuration(this.
getYears() -
rhs.
getYears(), this.
getMonths() -
rhs.
getMonths(),
this.
getDays() -
rhs.
getDays(), this.
getHours() -
rhs.
getHours(),
this.
getMinutes() -
rhs.
getMinutes(), this.
getSeconds() -
rhs.
getSeconds(),
this.
getMillis() -
rhs.
getMillis());
}
public
DatumDependentDuration minus(final
Duration rhs) {
return new
DatumDependentDuration(this.
getYears(), this.
getMonths(),
this.
getDays() -
rhs.
getDays(), this.
getHours() -
rhs.
getHours(),
this.
getMinutes() -
rhs.
getMinutes(), this.
getSeconds() -
rhs.
getSeconds(),
this.
getMillis() -
rhs.
getMillis());
}
/**
* @see groovy.time.BaseDuration#toMilliseconds()
*
* Change the duration into milliseconds, relative to 'now.' Therefore
* things like timezone and time of year will affect how this conversion
* occurs.
*/
public long
toMilliseconds() {
final
Date now = new
Date();
return
TimeCategory.
minus(
plus(
now),
now).
toMilliseconds();
}
public
Date getAgo() {
final
Calendar cal =
Calendar.
getInstance();
cal.
add(
Calendar.
YEAR, -this.
getYears());
cal.
add(
Calendar.
MONTH, -this.
getMonths());
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.
YEAR,
DatumDependentDuration.this.
getYears());
cal.
add(
Calendar.
MONTH,
DatumDependentDuration.this.
getMonths());
cal.
add(
Calendar.
DAY_OF_YEAR,
DatumDependentDuration.this.
getDays());
cal.
add(
Calendar.
HOUR_OF_DAY,
DatumDependentDuration.this.
getHours());
cal.
add(
Calendar.
MINUTE,
DatumDependentDuration.this.
getMinutes());
cal.
add(
Calendar.
SECOND,
DatumDependentDuration.this.
getSeconds());
cal.
add(
Calendar.
MILLISECOND,
DatumDependentDuration.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());
}
};
}
}