package org.schabi.newpipe.database.playlist; import org.schabi.newpipe.database.LocalItem; import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity; import java.util.Comparator; import java.util.List; import java.util.stream.Collectors; import java.util.stream.Stream; public interface PlaylistLocalItem extends LocalItem { String getOrderingName(); static List merge( final List localPlaylists, final List remotePlaylists) { return Stream.concat(localPlaylists.stream(), remotePlaylists.stream()) .sorted(Comparator.comparing(PlaylistLocalItem::getOrderingName, Comparator.nullsLast(String.CASE_INSENSITIVE_ORDER))) .collect(Collectors.toList()); } }