cn.hutool.core.date.DateUnit Maven / Gradle / Ivy
package cn.hutool.core.date;
import java.time.temporal.ChronoUnit;
/**
* 日期时间单位，每个单位都是以毫秒为基数
*
* @author Looly
*/
public enum DateUnit {
/**
* 一毫秒
*/
MS(1),
/**
* 一秒的毫秒数
*/
SECOND(1000),
/**
* 一分钟的毫秒数
*/
MINUTE(SECOND.getMillis() * 60),
/**
* 一小时的毫秒数
*/
HOUR(MINUTE.getMillis() * 60),
/**
* 一天的毫秒数
*/
DAY(HOUR.getMillis() * 24),
/**
* 一周的毫秒数
*/
WEEK(DAY.getMillis() * 7);
private final long millis;
DateUnit(long millis) {
this.millis = millis;
}
/**
* @return 单位对应的毫秒数
*/
public long getMillis() {
return this.millis;
}
/**
* 单位兼容转换，将DateUnit转换为对应的{@link ChronoUnit}
*
* @return {@link ChronoUnit}
* @since 5.4.5
*/
public ChronoUnit toChronoUnit() {
return DateUnit.toChronoUnit(this);
}
/**
* 单位兼容转换，将{@link ChronoUnit}转换为对应的DateUnit
*
* @param unit {@link ChronoUnit}
* @return DateUnit，null表示不支持此单位
* @since 5.4.5
*/
public static DateUnit of(ChronoUnit unit) {
switch (unit) {
case MICROS:
return DateUnit.MS;
case SECONDS:
return DateUnit.SECOND;
case MINUTES:
return DateUnit.MINUTE;
case HOURS:
return DateUnit.HOUR;
case DAYS:
return DateUnit.DAY;
case WEEKS:
return DateUnit.WEEK;
}
return null;
}
/**
* 单位兼容转换，将DateUnit转换为对应的{@link ChronoUnit}
*
* @param unit DateUnit
* @return {@link ChronoUnit}
* @since 5.4.5
*/
public static ChronoUnit toChronoUnit(DateUnit unit) {
switch (unit) {
case MS:
return ChronoUnit.MICROS;
case SECOND:
return ChronoUnit.SECONDS;
case MINUTE:
return ChronoUnit.MINUTES;
case HOUR:
return ChronoUnit.HOURS;
case DAY:
return ChronoUnit.DAYS;
case WEEK:
return ChronoUnit.WEEKS;
}
return null;
}
}