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The SoftiCAR Platform is a lightweight, Java-based library to create interactive business web applications.
package com.softicar.platform.common.date;
import java.util.Objects;
/**
* Represents the distance between two {@link DayTime} objects.
*
* @author Oliver Richers
*/
public class Duration {
private static final long HOURS_PER_DAY = 24;
private static final long MINUTES_PER_HOUR = 60;
private static final long MINUTES_PER_DAY = HOURS_PER_DAY * MINUTES_PER_HOUR;
private static final long SECONDS_PER_MINUTE = 60;
private static final long SECONDS_PER_HOUR = MINUTES_PER_HOUR * SECONDS_PER_MINUTE;
private static final long SECONDS_PER_DAY = MINUTES_PER_DAY * SECONDS_PER_MINUTE;
private final long totalSeconds;
public Duration(DayTime begin, DayTime end) {
this(toSeconds(end) - toSeconds(begin));
}
public Duration(long seconds) {
this.totalSeconds = seconds;
}
@Override
public String toString() {
int days = getDays();
int hours = getHoursOfDay();
int minutes = getMinutesOfHour();
int seconds = getSecondsOfMinute();
if (days != 0) {
return CommonDateI18n.ARG1D_ARG2H_ARG3MIN_ARG4S.toDisplay(days, hours, minutes, seconds).toString();
} else if (hours != 0) {
return CommonDateI18n.ARG1H_ARG2MIN_ARG3S.toDisplay(hours, minutes, seconds).toString();
} else if (minutes != 0) {
return CommonDateI18n.ARG1MIN_ARG2S.toDisplay(minutes, seconds).toString();
} else {
return CommonDateI18n.ARG1_SECONDS.toDisplay(seconds).toString();
}
}
@Override
public boolean equals(Object object) {
if (object == this) {
return true;
} else if (object instanceof Duration) {
return totalSeconds == ((Duration) object).totalSeconds;
} else {
return false;
}
}
@Override
public int hashCode() {
return Objects.hash(totalSeconds);
}
public int getDays() {
return (int) (totalSeconds / SECONDS_PER_DAY);
}
public int getHoursOfDay() {
return (int) (totalSeconds % SECONDS_PER_DAY / SECONDS_PER_HOUR);
}
public int getMinutesOfHour() {
return (int) (totalSeconds % SECONDS_PER_HOUR / SECONDS_PER_MINUTE);
}
public int getSecondsOfMinute() {
return (int) (totalSeconds % SECONDS_PER_MINUTE);
}
public long getTotalSeconds() {
return totalSeconds;
}
/**
* Clamps this duration to zero if it is negative.
*
* @return zero duration if this duration is negative,otherwise this
* duration is returned
*/
public Duration clamp() {
return totalSeconds < 0? new Duration(0) : this;
}
private static long toSeconds(DayTime dayTime) {
Day day = dayTime.getDay();
return day.getAbsoluteIndex() * SECONDS_PER_DAY + dayTime.getSecondsOfDay();
}
}