Durations in existing JDK APIs

[Stephen Colebourne]

On 30 May 2018 at 18:36, Martin Buchholz <martinrb at google.com> wrote:
> Stephen/Doug: is there any reason we didn't add conversions between Duration
> and TimeUnit when we added conversions to ChronoUnit?

I don't remember the idea being discussed. The proposed implementation
seems reasonable.

thanks
Stephen


> Here's a strawman:
>
>     /**
>      * Converts the given time duration to this unit.
>      *
>      * @param duration the time duration
>      * @return the converted duration in this unit,
>      * or {@code Long.MIN_VALUE} if conversion would negatively overflow,
>      * or {@code Long.MAX_VALUE} if it would positively overflow.
>      */
>     public long convert(Duration duration) {
>         long s = convert(duration.getSeconds(), SECONDS);
>         if (s == Long.MIN_VALUE) return s;
>         long n = convert(duration.getNano(), NANOSECONDS);
>         assert n >= 0 && n < 1_000_000_000;
>         return (s + n < s) ? Long.MAX_VALUE : s + n;
>     }
>