+ @Override
+ public int compare(Sone firstSone, Sone secondSone) {
+ return (int) Math.min(Integer.MAX_VALUE, Math.max(Integer.MIN_VALUE, secondSone.getTime() - firstSone.getTime()));
+ }
+ };
+
+ /** Comparator that sorts Sones by numbers of posts (descending). */
+ public static final Comparator<Sone> POST_COUNT_COMPARATOR = new Comparator<Sone>() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public int compare(Sone leftSone, Sone rightSone) {
+ return (leftSone.getPosts().size() != rightSone.getPosts().size()) ? (rightSone.getPosts().size() - leftSone.getPosts().size()) : (rightSone.getReplies().size() - leftSone.getReplies().size());
+ }
+ };
+
+ /** Comparator that sorts Sones by number of images (descending). */
+ public static final Comparator<Sone> IMAGE_COUNT_COMPARATOR = new Comparator<Sone>() {
+
+ /**
+ * {@inheritDoc}
+ */
+ @Override
+ public int compare(Sone leftSone, Sone rightSone) {
+ int rightSoneImageCount = from(asList(rightSone.getRootAlbum())).transformAndConcat(FLATTENER).transformAndConcat(IMAGES).size();
+ int leftSoneImageCount = from(asList(leftSone.getRootAlbum())).transformAndConcat(FLATTENER).transformAndConcat(IMAGES).size();
+ /* sort descending. */
+ return Ints.compare(rightSoneImageCount, leftSoneImageCount);
+ }
+ };
+
+ /** Filter to remove Sones that have not been downloaded. */
+ public static final Predicate<Sone> EMPTY_SONE_FILTER = new Predicate<Sone>() {
+
+ @Override
+ public boolean apply(Sone sone) {
+ return (sone != null) && (sone.getTime() != 0);
+ }
+ };
+
+ /** Filter that matches all {@link Sone#isLocal() local Sones}. */
+ public static final Predicate<Sone> LOCAL_SONE_FILTER = new Predicate<Sone>() {
+
+ @Override
+ public boolean apply(Sone sone) {
+ return (sone != null) && (sone.getIdentity() instanceof OwnIdentity);
+ }
+
+ };
+
+ /** Filter that matches Sones that have at least one album. */
+ public static final Predicate<Sone> HAS_ALBUM_FILTER = new Predicate<Sone>() {
+
+ @Override
+ public boolean apply(Sone sone) {
+ return (sone != null) && !sone.getRootAlbum().getAlbums().isEmpty();
+ }
+ };
+
+ public static final Function<Sone, String> toSoneXmlUri =
+ new Function<Sone, String>() {
+ @Nonnull
+ @Override
+ public String apply(@Nullable Sone input) {
+ return input.getRequestUri()
+ .setMetaString(new String[] { "sone.xml" })
+ .toString();
+ }
+ };
+
+ public static final Function<Sone, List<Album>> toAllAlbums = new Function<Sone, List<Album>>() {
+ @Override
+ public List<Album> apply(@Nullable Sone sone) {
+ return (sone == null) ? Collections.<Album>emptyList() : FLATTENER.apply(
+ sone.getRootAlbum());
+ }
+ };
+
+ public static final Function<Sone, List<Image>> toAllImages = new Function<Sone, List<Image>>() {
+ @Override
+ public List<Image> apply(@Nullable Sone sone) {
+ return (sone == null) ? Collections.<Image>emptyList() :
+ from(FLATTENER.apply(sone.getRootAlbum()))
+ .transformAndConcat(IMAGES).toList();
+ }
+ };