@Override
public Object create(Object request, SpecimenContext context) {
    if (!(request instanceof SpecimenType)) {
        return new NoSpecimen();
    }

    SpecimenType type = (SpecimenType) request;
    if (!BaseDateTime.class.isAssignableFrom(type.getRawType())) {
        return new NoSpecimen();
    }

    try {
        Date date = (Date) context.resolve(Date.class);
        long instant = date.getTime();

        DateTimeZone timeZone = (DateTimeZone)context.resolve(DateTimeZone.class);
        return type.getRawType().getDeclaredConstructor(long.class, DateTimeZone.class).newInstance(instant, timeZone);
    } catch (Exception e) {
        e.printStackTrace();
        return new NoSpecimen();
    }
}
 

/** Pass components of {@code dt} to {@link #encodeDateTime(long, long, long, long, long, long)}. */
public static long encodeDateTime(BaseDateTime dt) {
    return encodeDateTime(dt.getYear(),
                          dt.getMonthOfYear(),
                          dt.getDayOfMonth(),
                          dt.getHourOfDay(),
                          dt.getMinuteOfHour(),
                          dt.getSecondOfMinute());
}
 

/** Convert {@code dateTime} to milliseconds and {@link #encodeTimestamp(long, TExecutionContext)}. */
public static int encodeTimestamp(BaseDateTime dateTime, TExecutionContext context) {
    return encodeTimestamp(dateTime.getMillis(), context);
}
 

public static boolean isValidTimestamp(BaseDateTime dt) {
    long millis = dt.getMillis();
    return (millis >= TIMESTAMP_MIN) && (millis <= TIMESTAMP_MAX);
}