import ru.solarsecurity.inrights.prism.Containerable;

import java.util.Comparator;
import java.util.List;

class PrismUtil {

	public static Long getNewContainerId(List<? extends Containerable> existingItems) {
		return existingItems.stream()
			.map(i -> i.asPrismContainerValue().getId())
			.max(Comparator.naturalOrder())
			.orElse(-1L) + 1;
	}
}