return !validateDateTimeString(source.get(s));
                }).collect(Collectors.toList()));
    }

    default boolean validateDateTimeString(final Object obj) {
        if (FessFunctions.parseDate(obj.toString()) != null) {
            return true;
        }
        return false;
    }

    String getIndexAdminIntegerFields();

    default Set<String> getIndexAdminIntegerFieldSet() {

				})
				if err != nil {
					batchLogOnceIf(ctx, err, job.ID+"minio.New")
					return
				}

				// Already validated before arriving here
				smallerThan, _ := humanize.ParseBytes(*r.Source.Snowball.SmallerThan)

				batch := make([]ObjectInfo, 0, *r.Source.Snowball.Batch)
				writeFn := func(batch []ObjectInfo) {
					if len(batch) > 0 {