SpringDataVaadinUtil.java

import java.util.stream.Collectors;

import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Order;

import com.vaadin.flow.data.provider.Query;
import com.vaadin.flow.data.provider.SortDirection;

public class SpringDataVaadinUtil {

	public static Sort toSpringDataSort(Query<?, Void> q) {
		Sort springDataSort = Sort.by(q.getSortOrders().stream()
						.map(so -> so.getDirection() == SortDirection.ASCENDING ? Order.asc(so.getSorted())
								: Order.desc(so.getSorted()))
				.collect(Collectors.toList()))
				// default sort order for deterministic testing
				.and(Sort.by("id"));
		return springDataSort;
	}

}