private ExportResult<PhotosContainerResource> exportAlbums( TokensAndUrlAuthData authData, Optional<StringPaginationToken> paginationData) { Optional<String> paginationToken = stripTokenPrefix(paginationData, ALBUM_TOKEN_PREFIX); ArrayList<PhotoAlbum> exportAlbums = new ArrayList<>(); // Get albums Connection<Album> connection = getOrCreatePhotosInterface(authData).getAlbums(paginationToken); PaginationData nextPageData = null; String token = connection.getAfterCursor(); if (!Strings.isNullOrEmpty(token)) { nextPageData = new StringPaginationToken(ALBUM_TOKEN_PREFIX + token); } ContinuationData continuationData = new ContinuationData(nextPageData); List<Album> albums = connection.getData(); for (Album album : albums) { exportAlbums.add(new PhotoAlbum(album.getId(), album.getName(), album.getDescription())); continuationData.addContainerResource(new IdOnlyContainerResource(album.getId())); } return new ExportResult<>( ExportResult.ResultType.CONTINUE, new PhotosContainerResource(exportAlbums, null), continuationData); }