@Override
public String toString() {
// 返回形如: 30s/5m@2m30s，读作: 以30秒切割5分钟周期，当前偏移量为第2分钟30秒
return TimeInterval.parse(interval)
+ "/"
+ TimeInterval.parse(total)
+ "@"
+ TimeInterval.parse(currentOffset);
}
/**
*
*
* <h2>返回当前偏移量在特定cron位置上面的表达</h2>
*
* @param i cron位置
* @return 偏移量表达
*/
public String getSegment(int i) {
// 0(second): 1 (s)
// 1(minute): 60 (s)
// 2(hour) : 36,00 (s)
if (i > 2) throw new UnsupportedOperationException("Can't support offset greater than hour");
// 1h1m30s
String offset = TimeInterval.parse(currentOffset);
Pattern pattern = patterns[i];
Matcher matcher = pattern.matcher(offset);
if (matcher.find()) {
return matcher.group(1);
} else {
return "0";
}
}