+ }
+ touchConfiguration();
+ }
+
+ /**
+ * Lets the given local Sone unfollow the Sone with the given ID.
+ *
+ * @param sone
+ * The local Sone that should unfollow another Sone
+ * @param soneId
+ * The ID of the Sone being unfollowed
+ */
+ public void unfollowSone(Sone sone, String soneId) {
+ checkNotNull(sone, "sone must not be null");
+ checkNotNull(soneId, "soneId must not be null");
+ sone.removeFriend(soneId);
+ boolean unfollowedSoneStillFollowed = false;
+ for (Sone localSone : getLocalSones()) {
+ unfollowedSoneStillFollowed |= localSone.hasFriend(soneId);
+ }
+ if (!unfollowedSoneStillFollowed) {
+ synchronized (soneFollowingTimes) {
+ soneFollowingTimes.remove(soneId);
+ }
+ }
+ touchConfiguration();
+ }
+
+ /**
+ * Sets the trust value of the given origin Sone for the target Sone.
+ *
+ * @param origin
+ * The origin Sone
+ * @param target
+ * The target Sone
+ * @param trustValue
+ * The trust value (from {@code -100} to {@code 100})
+ */
+ public void setTrust(Sone origin, Sone target, int trustValue) {
+ checkNotNull(origin, "origin must not be null");
+ checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
+ checkNotNull(target, "target must not be null");
+ checkArgument((trustValue >= -100) && (trustValue <= 100), "trustValue must be within [-100, 100]");
+ webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), trustValue, preferences.getTrustComment());
+ }
+
+ /**
+ * Removes any trust assignment for the given target Sone.
+ *
+ * @param origin
+ * The trust origin
+ * @param target
+ * The trust target
+ */
+ public void removeTrust(Sone origin, Sone target) {
+ checkNotNull(origin, "origin must not be null");
+ checkNotNull(target, "target must not be null");
+ checkArgument(origin.getIdentity() instanceof OwnIdentity, "origin must be a local Sone");
+ webOfTrustUpdater.setTrust((OwnIdentity) origin.getIdentity(), target.getIdentity(), null, null);
+ }
+
+ /**
+ * Assigns the configured positive trust value for the given target.
+ *
+ * @param origin
+ * The trust origin
+ * @param target
+ * The trust target
+ */
+ public void trustSone(Sone origin, Sone target) {
+ setTrust(origin, target, preferences.getPositiveTrust());
+ }
+
+ /**
+ * Assigns the configured negative trust value for the given target.
+ *
+ * @param origin
+ * The trust origin
+ * @param target
+ * The trust target
+ */
+ public void distrustSone(Sone origin, Sone target) {
+ setTrust(origin, target, preferences.getNegativeTrust());
+ }
+
+ /**
+ * Removes the trust assignment for the given target.
+ *
+ * @param origin
+ * The trust origin
+ * @param target
+ * The trust target
+ */
+ public void untrustSone(Sone origin, Sone target) {
+ removeTrust(origin, target);
+ }
+
+ /**
+ * Updates the stored Sone with the given Sone.
+ *
+ * @param sone
+ * The updated Sone
+ */
+ public void updateSone(Sone sone) {
+ updateSone(sone, false);
+ }
+
+ /**
+ * Updates the stored Sone with the given Sone. If {@code soneRescueMode} is
+ * {@code true}, an older Sone than the current Sone can be given to restore
+ * an old state.
+ *
+ * @param sone
+ * The Sone to update
+ * @param soneRescueMode
+ * {@code true} if the stored Sone should be updated regardless
+ * of the age of the given Sone
+ */
+ public void updateSone(Sone sone, boolean soneRescueMode) {
+ Optional<Sone> storedSone = getSone(sone.getId());
+ if (storedSone.isPresent()) {
+ if (!soneRescueMode && !(sone.getTime() > storedSone.get().getTime())) {
+ logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
+ return;
+ }
+ /* find removed posts. */
+ Collection<Post> removedPosts = new ArrayList<Post>();
+ Collection<Post> newPosts = new ArrayList<Post>();
+ Collection<Post> existingPosts = database.getPosts(sone.getId());
+ for (Post oldPost : existingPosts) {
+ if (!sone.getPosts().contains(oldPost)) {
+ removedPosts.add(oldPost);
+ }
+ }
+ /* find new posts. */
+ for (Post newPost : sone.getPosts()) {
+ if (existingPosts.contains(newPost)) {
+ continue;
+ }
+ if (newPost.getTime() < getSoneFollowingTime(sone)) {
+ newPost.setKnown(true);
+ } else if (!newPost.isKnown()) {
+ newPosts.add(newPost);
+ }
+ }
+ /* store posts. */
+ database.storePosts(sone, sone.getPosts());
+ Collection<PostReply> newPostReplies = new ArrayList<PostReply>();
+ Collection<PostReply> removedPostReplies = new ArrayList<PostReply>();
+ if (!soneRescueMode) {
+ for (PostReply reply : storedSone.get().getReplies()) {
+ if (!sone.getReplies().contains(reply)) {
+ removedPostReplies.add(reply);