Remove updated time setter from Sone, store update time in database.
[Sone.git] / src / main / java / net / pterodactylus / sone / core / Core.java
index 2e2cf3e..c3ac305 100644 (file)
@@ -21,9 +21,9 @@ import static com.google.common.base.Optional.fromNullable;
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static com.google.common.primitives.Longs.tryParse;
-import static java.lang.String.format;
-import static java.util.logging.Level.WARNING;
+import static java.util.logging.Logger.getLogger;
 
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -38,12 +38,6 @@ import java.util.concurrent.TimeUnit;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidAlbumFound;
-import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidImageFound;
-import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidParentAlbumFound;
-import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidPostFound;
-import net.pterodactylus.sone.core.ConfigurationSoneParser.InvalidPostReplyFound;
-import net.pterodactylus.sone.core.Options.DefaultOption;
 import net.pterodactylus.sone.core.SoneChangeDetector.PostProcessor;
 import net.pterodactylus.sone.core.SoneChangeDetector.PostReplyProcessor;
 import net.pterodactylus.sone.core.event.ImageInsertFinishedEvent;
@@ -55,19 +49,17 @@ import net.pterodactylus.sone.core.event.NewPostReplyFoundEvent;
 import net.pterodactylus.sone.core.event.NewSoneFoundEvent;
 import net.pterodactylus.sone.core.event.PostRemovedEvent;
 import net.pterodactylus.sone.core.event.PostReplyRemovedEvent;
+import net.pterodactylus.sone.core.event.SoneInsertedEvent;
 import net.pterodactylus.sone.core.event.SoneLockedEvent;
 import net.pterodactylus.sone.core.event.SoneRemovedEvent;
 import net.pterodactylus.sone.core.event.SoneUnlockedEvent;
 import net.pterodactylus.sone.data.Album;
-import net.pterodactylus.sone.data.Client;
 import net.pterodactylus.sone.data.Image;
+import net.pterodactylus.sone.data.LocalSone;
 import net.pterodactylus.sone.data.Post;
 import net.pterodactylus.sone.data.PostReply;
-import net.pterodactylus.sone.data.Profile;
-import net.pterodactylus.sone.data.Profile.Field;
 import net.pterodactylus.sone.data.Reply;
 import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.data.Sone.ShowCustomAvatars;
 import net.pterodactylus.sone.data.Sone.SoneStatus;
 import net.pterodactylus.sone.data.TemporaryImage;
 import net.pterodactylus.sone.database.AlbumBuilder;
@@ -80,7 +72,6 @@ import net.pterodactylus.sone.database.PostReplyBuilder;
 import net.pterodactylus.sone.database.PostReplyProvider;
 import net.pterodactylus.sone.database.SoneBuilder;
 import net.pterodactylus.sone.database.SoneProvider;
-import net.pterodactylus.sone.fcp.FcpInterface;
 import net.pterodactylus.sone.freenet.wot.Identity;
 import net.pterodactylus.sone.freenet.wot.IdentityManager;
 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
@@ -89,19 +80,14 @@ import net.pterodactylus.sone.freenet.wot.event.IdentityRemovedEvent;
 import net.pterodactylus.sone.freenet.wot.event.IdentityUpdatedEvent;
 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityAddedEvent;
 import net.pterodactylus.sone.freenet.wot.event.OwnIdentityRemovedEvent;
-import net.pterodactylus.sone.main.SonePlugin;
-import net.pterodactylus.sone.utils.IntegerRangePredicate;
 import net.pterodactylus.util.config.Configuration;
 import net.pterodactylus.util.config.ConfigurationException;
-import net.pterodactylus.util.logging.Logging;
-import net.pterodactylus.util.number.Numbers;
 import net.pterodactylus.util.service.AbstractService;
 import net.pterodactylus.util.thread.NamedThreadFactory;
 
 import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Function;
 import com.google.common.base.Optional;
-import com.google.common.base.Predicates;
-import com.google.common.collect.FluentIterable;
 import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimap;
 import com.google.common.collect.Multimaps;
@@ -119,14 +105,11 @@ import com.google.inject.Singleton;
 public class Core extends AbstractService implements SoneProvider, PostProvider, PostReplyProvider {
 
        /** The logger. */
-       private static final Logger logger = Logging.getLogger(Core.class);
+       private static final Logger logger = getLogger("Sone.Core");
 
        /** The start time. */
        private final long startupTime = System.currentTimeMillis();
 
-       /** The options. */
-       private final Options options = new Options();
-
        /** The preferences. */
        private final Preferences preferences;
 
@@ -160,34 +143,21 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        /** The trust updater. */
        private final WebOfTrustUpdater webOfTrustUpdater;
 
-       /** The FCP interface. */
-       private volatile FcpInterface fcpInterface;
-
-       /** The times Sones were followed. */
-       private final Map<String, Long> soneFollowingTimes = new HashMap<String, Long>();
-
        /** Locked local Sones. */
        /* synchronize on itself. */
-       private final Set<Sone> lockedSones = new HashSet<Sone>();
+       private final Set<LocalSone> lockedSones = new HashSet<LocalSone>();
 
        /** Sone inserters. */
        /* synchronize access on this on sones. */
-       private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
+       private final Map<LocalSone, SoneInserter> soneInserters = new HashMap<LocalSone, SoneInserter>();
 
        /** Sone rescuers. */
        /* synchronize access on this on sones. */
-       private final Map<Sone, SoneRescuer> soneRescuers = new HashMap<Sone, SoneRescuer>();
-
-       /** All known Sones. */
-       private final Set<String> knownSones = new HashSet<String>();
+       private final Map<LocalSone, SoneRescuer> soneRescuers = new HashMap<LocalSone, SoneRescuer>();
 
        /** The post database. */
        private final Database database;
 
-       /** All bookmarked posts. */
-       /* synchronize access on itself. */
-       private final Set<String> bookmarkedPosts = new HashSet<String>();
-
        /** Trusted identities, sorted by own identities. */
        private final Multimap<OwnIdentity, Identity> trustedIdentities = Multimaps.synchronizedSetMultimap(HashMultimap.<OwnIdentity, Identity>create());
 
@@ -228,7 +198,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                this.webOfTrustUpdater = webOfTrustUpdater;
                this.eventBus = eventBus;
                this.database = database;
-               preferences = new Preferences(this.eventBus, options);
+               preferences = new Preferences(eventBus);
        }
 
        @VisibleForTesting
@@ -243,7 +213,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                this.webOfTrustUpdater = webOfTrustUpdater;
                this.eventBus = eventBus;
                this.database = database;
-               preferences = new Preferences(this.eventBus, options);
+               preferences = new Preferences(eventBus);
        }
 
        //
@@ -287,25 +257,14 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        }
 
        /**
-        * Sets the FCP interface to use.
-        *
-        * @param fcpInterface
-        *            The FCP interface to use
-        */
-       public void setFcpInterface(FcpInterface fcpInterface) {
-               this.fcpInterface = fcpInterface;
-       }
-
-       /**
         * Returns the Sone rescuer for the given local Sone.
         *
         * @param sone
         *            The local Sone to get the rescuer for
         * @return The Sone rescuer for the given Sone
         */
-       public SoneRescuer getSoneRescuer(Sone sone) {
+       public SoneRescuer getSoneRescuer(LocalSone sone) {
                checkNotNull(sone, "sone must not be null");
-               checkArgument(sone.isLocal(), "sone must be local");
                synchronized (soneRescuers) {
                        SoneRescuer soneRescuer = soneRescuers.get(sone);
                        if (soneRescuer == null) {
@@ -324,7 +283,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         *            The sone to check
         * @return {@code true} if the Sone is locked, {@code false} if it is not
         */
-       public boolean isLocked(Sone sone) {
+       public boolean isLocked(LocalSone sone) {
                synchronized (lockedSones) {
                        return lockedSones.contains(sone);
                }
@@ -342,6 +301,11 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                return database.getSones();
        }
 
+       @Override
+       public Function<String, Optional<Sone>> soneLoader() {
+               return database.soneLoader();
+       }
+
        /**
         * Returns the Sone with the given ID, regardless whether it’s local or
         * remote.
@@ -356,27 +320,13 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                return database.getSone(id);
        }
 
-       /**
-        * {@inheritDocs}
-        */
        @Override
-       public Collection<Sone> getLocalSones() {
+       public Collection<LocalSone> getLocalSones() {
                return database.getLocalSones();
        }
 
-       /**
-        * Returns the local Sone with the given ID, optionally creating a new Sone.
-        *
-        * @param id
-        *            The ID of the Sone
-        * @return The Sone with the given ID, or {@code null}
-        */
-       public Sone getLocalSone(String id) {
-               Optional<Sone> sone = database.getSone(id);
-               if (sone.isPresent() && sone.get().isLocal()) {
-                       return sone.get();
-               }
-               return null;
+       public Optional<LocalSone> getLocalSone(String id) {
+               return database.getLocalSone(id);
        }
 
        /**
@@ -407,7 +357,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @return {@code true} if a modification has been detected in the Sone,
         *         {@code false} otherwise
         */
-       public boolean isModifiedSone(Sone sone) {
+       public boolean isModifiedSone(LocalSone sone) {
                return soneInserters.containsKey(sone) && soneInserters.get(sone).isModified();
        }
 
@@ -420,9 +370,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         *         been followed, or {@link Long#MAX_VALUE}
         */
        public long getSoneFollowingTime(Sone sone) {
-               synchronized (soneFollowingTimes) {
-                       return Optional.fromNullable(soneFollowingTimes.get(sone.getId())).or(Long.MAX_VALUE);
-               }
+               return database.getSoneFollowingTime(sone.getId()).or(Long.MAX_VALUE);
        }
 
        /**
@@ -527,21 +475,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         *         otherwise
         */
        public boolean isBookmarked(Post post) {
-               return isPostBookmarked(post.getId());
-       }
-
-       /**
-        * Returns whether the post with the given ID is bookmarked.
-        *
-        * @param id
-        *            The ID of the post to check
-        * @return {@code true} if the post with the given ID is bookmarked,
-        *         {@code false} otherwise
-        */
-       public boolean isPostBookmarked(String id) {
-               synchronized (bookmarkedPosts) {
-                       return bookmarkedPosts.contains(id);
-               }
+               return database.isPostBookmarked(post);
        }
 
        /**
@@ -550,16 +484,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @return All bookmarked posts
         */
        public Set<Post> getBookmarkedPosts() {
-               Set<Post> posts = new HashSet<Post>();
-               synchronized (bookmarkedPosts) {
-                       for (String bookmarkedPostId : bookmarkedPosts) {
-                               Optional<Post> post = getPost(bookmarkedPostId);
-                               if (post.isPresent()) {
-                                       posts.add(post.get());
-                               }
-                       }
-               }
-               return posts;
+               return database.getBookmarkedPosts();
        }
 
        public AlbumBuilder albumBuilder() {
@@ -639,13 +564,13 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
 
        /**
         * Locks the given Sone. A locked Sone will not be inserted by
-        * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
+        * {@link SoneInserter} until it is {@link #unlockSone(LocalSone) unlocked}
         * again.
         *
         * @param sone
         *            The sone to lock
         */
-       public void lockSone(Sone sone) {
+       public void lockSone(LocalSone sone) {
                synchronized (lockedSones) {
                        if (lockedSones.add(sone)) {
                                eventBus.post(new SoneLockedEvent(sone));
@@ -656,11 +581,11 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        /**
         * Unlocks the given Sone.
         *
-        * @see #lockSone(Sone)
+        * @see #lockSone(LocalSone)
         * @param sone
         *            The sone to unlock
         */
-       public void unlockSone(Sone sone) {
+       public void unlockSone(LocalSone sone) {
                synchronized (lockedSones) {
                        if (lockedSones.remove(sone)) {
                                eventBus.post(new SoneUnlockedEvent(sone));
@@ -675,23 +600,21 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         *            The own identity to create a Sone from
         * @return The added (or already existing) Sone
         */
-       public Sone addLocalSone(OwnIdentity ownIdentity) {
+       public LocalSone addLocalSone(OwnIdentity ownIdentity) {
                if (ownIdentity == null) {
                        logger.log(Level.WARNING, "Given OwnIdentity is null!");
                        return null;
                }
                logger.info(String.format("Adding Sone from OwnIdentity: %s", ownIdentity));
-               Sone sone = database.newSoneBuilder().local().from(ownIdentity).build();
-               sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), 0L));
-               sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
-               sone.setKnown(true);
-               /* TODO - load posts ’n stuff */
-               SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, ownIdentity.getId());
+               LocalSone sone = database.registerLocalSone(ownIdentity);
+               SoneInserter soneInserter = new SoneInserter(this, eventBus, freenetInterface, database, ownIdentity.getId());
                eventBus.register(soneInserter);
                synchronized (soneInserters) {
                        soneInserters.put(sone, soneInserter);
                }
-               loadSone(sone);
+               synchronized (soneInserters) {
+                       soneInserters.get(sone).setLastInsertFingerprint(database.getLastInsertFingerprint(sone));
+               }
                sone.setStatus(SoneStatus.idle);
                soneInserter.start();
                return sone;
@@ -709,7 +632,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                        logger.log(Level.SEVERE, String.format("Could not add “Sone” context to own identity: %s", ownIdentity));
                        return null;
                }
-               Sone sone = addLocalSone(ownIdentity);
+               LocalSone sone = addLocalSone(ownIdentity);
 
                followSone(sone, "nwa8lHa271k2QvJ8aa0Ov7IHAV-DFOCFgmDt3X6BpCI");
                touchConfiguration();
@@ -738,13 +661,11 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                Sone sone = !newSone ? existingSone.get() : database.newSoneBuilder().from(identity).build();
                sone.setLatestEdition(latestEdition);
                if (newSone) {
-                       synchronized (knownSones) {
-                               newSone = !knownSones.contains(sone.getId());
-                       }
+                       newSone = !database.isSoneKnown(sone);
                        sone.setKnown(!newSone);
                        if (newSone) {
                                eventBus.post(new NewSoneFoundEvent(sone));
-                               for (Sone localSone : getLocalSones()) {
+                               for (LocalSone localSone : getLocalSones()) {
                                        if (localSone.getOptions().isAutoFollow()) {
                                                followSone(localSone, sone.getId());
                                        }
@@ -765,31 +686,28 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @param soneId
         *            The ID of the Sone to follow
         */
-       public void followSone(Sone sone, String soneId) {
+       public void followSone(LocalSone sone, String soneId) {
                checkNotNull(sone, "sone must not be null");
                checkNotNull(soneId, "soneId must not be null");
-               sone.addFriend(soneId);
-               synchronized (soneFollowingTimes) {
-                       if (!soneFollowingTimes.containsKey(soneId)) {
-                               long now = System.currentTimeMillis();
-                               soneFollowingTimes.put(soneId, now);
-                               Optional<Sone> followedSone = getSone(soneId);
-                               if (!followedSone.isPresent()) {
-                                       return;
-                               }
-                               for (Post post : followedSone.get().getPosts()) {
-                                       if (post.getTime() < now) {
-                                               markPostKnown(post);
-                                       }
+               boolean newFriend = !database.getSoneFollowingTime(soneId).isPresent();
+               database.addFriend(sone, soneId);
+               if (newFriend) {
+                       long now = System.currentTimeMillis();
+                       Optional<Sone> followedSone = getSone(soneId);
+                       if (!followedSone.isPresent()) {
+                               return;
+                       }
+                       for (Post post : followedSone.get().getPosts()) {
+                               if (post.getTime() < now) {
+                                       markPostKnown(post);
                                }
-                               for (PostReply reply : followedSone.get().getReplies()) {
-                                       if (reply.getTime() < now) {
-                                               markReplyKnown(reply);
-                                       }
+                       }
+                       for (PostReply reply : followedSone.get().getReplies()) {
+                               if (reply.getTime() < now) {
+                                       markReplyKnown(reply);
                                }
                        }
                }
-               touchConfiguration();
        }
 
        /**
@@ -800,20 +718,10 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @param soneId
         *            The ID of the Sone being unfollowed
         */
-       public void unfollowSone(Sone sone, String soneId) {
+       public void unfollowSone(LocalSone 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();
+               database.removeFriend(sone, soneId);
        }
 
        /**
@@ -913,42 +821,12 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                                logger.log(Level.FINE, String.format("Downloaded Sone %s is not newer than stored Sone %s.", sone, storedSone));
                                return;
                        }
-                       /* find removed posts. */
-                       SoneChangeDetector soneChangeDetector = new SoneChangeDetector(storedSone.get());
-                       soneChangeDetector.onNewPosts(new PostProcessor() {
-                               @Override
-                               public void processPost(Post post) {
-                                       if (post.getTime() < getSoneFollowingTime(sone)) {
-                                               post.setKnown(true);
-                                       } else if (!post.isKnown()) {
-                                               eventBus.post(new NewPostFoundEvent(post));
-                                       }
-                               }
-                       });
-                       soneChangeDetector.onRemovedPosts(new PostProcessor() {
-                               @Override
-                               public void processPost(Post post) {
-                                       eventBus.post(new PostRemovedEvent(post));
-                               }
-                       });
-                       soneChangeDetector.onNewPostReplies(new PostReplyProcessor() {
-                               @Override
-                               public void processPostReply(PostReply postReply) {
-                                       if (postReply.getTime() < getSoneFollowingTime(sone)) {
-                                               postReply.setKnown(true);
-                                       } else if (!postReply.isKnown()) {
-                                               eventBus.post(new NewPostReplyFoundEvent(postReply));
-                                       }
-                               }
-                       });
-                       soneChangeDetector.onRemovedPostReplies(new PostReplyProcessor() {
-                               @Override
-                               public void processPostReply(PostReply postReply) {
-                                       eventBus.post(new PostReplyRemovedEvent(postReply));
-                               }
-                       });
-                       soneChangeDetector.detectChanges(sone);
+                       List<Object> events =
+                                       collectEventsForChangesInSone(storedSone.get(), sone);
                        database.storeSone(sone);
+                       for (Object event : events) {
+                               eventBus.post(event);
+                       }
                        sone.setOptions(storedSone.get().getOptions());
                        sone.setKnown(storedSone.get().isKnown());
                        sone.setStatus((sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
@@ -958,6 +836,47 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                }
        }
 
+       private List<Object> collectEventsForChangesInSone(Sone oldSone,
+                       final Sone newSone) {
+               final List<Object> events = new ArrayList<Object>();
+               SoneChangeDetector soneChangeDetector = new SoneChangeDetector(
+                               oldSone);
+               soneChangeDetector.onNewPosts(new PostProcessor() {
+                       @Override
+                       public void processPost(Post post) {
+                               if (post.getTime() < getSoneFollowingTime(newSone)) {
+                                       post.setKnown(true);
+                               } else if (!post.isKnown()) {
+                                       events.add(new NewPostFoundEvent(post));
+                               }
+                       }
+               });
+               soneChangeDetector.onRemovedPosts(new PostProcessor() {
+                       @Override
+                       public void processPost(Post post) {
+                               events.add(new PostRemovedEvent(post));
+                       }
+               });
+               soneChangeDetector.onNewPostReplies(new PostReplyProcessor() {
+                       @Override
+                       public void processPostReply(PostReply postReply) {
+                               if (postReply.getTime() < getSoneFollowingTime(newSone)) {
+                                       postReply.setKnown(true);
+                               } else if (!postReply.isKnown()) {
+                                       events.add(new NewPostReplyFoundEvent(postReply));
+                               }
+                       }
+               });
+               soneChangeDetector.onRemovedPostReplies(new PostReplyProcessor() {
+                       @Override
+                       public void processPostReply(PostReply postReply) {
+                               events.add(new PostReplyRemovedEvent(postReply));
+                       }
+               });
+               soneChangeDetector.detectChanges(newSone);
+               return events;
+       }
+
        /**
         * Deletes the given Sone. This will remove the Sone from the
         * {@link #getLocalSones() local Sones}, stop its {@link SoneInserter} and
@@ -975,10 +894,9 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                        logger.log(Level.WARNING, String.format("Tried to delete non-local Sone: %s", sone));
                        return;
                }
-               // FIXME – implement in database
-//             sones.remove(sone.getId());
                SoneInserter soneInserter = soneInserters.remove(sone);
                soneInserter.stop();
+               database.removeSone(sone);
                webOfTrustUpdater.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
                webOfTrustUpdater.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
                try {
@@ -998,151 +916,13 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        public void markSoneKnown(Sone sone) {
                if (!sone.isKnown()) {
                        sone.setKnown(true);
-                       synchronized (knownSones) {
-                               knownSones.add(sone.getId());
-                       }
+                       database.setSoneKnown(sone);
                        eventBus.post(new MarkSoneKnownEvent(sone));
                        touchConfiguration();
                }
        }
 
        /**
-        * Loads and updates the given Sone from the configuration. If any error is
-        * encountered, loading is aborted and the given Sone is not changed.
-        *
-        * @param sone
-        *            The Sone to load and update
-        */
-       public void loadSone(Sone sone) {
-               if (!sone.isLocal()) {
-                       logger.log(Level.FINE, String.format("Tried to load non-local Sone: %s", sone));
-                       return;
-               }
-               logger.info(String.format("Loading local Sone: %s", sone));
-
-               /* load Sone. */
-               String sonePrefix = "Sone/" + sone.getId();
-               Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
-               if (soneTime == null) {
-                       logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
-                       return;
-               }
-               String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
-
-               /* load profile. */
-               ConfigurationSoneParser configurationSoneParser = new ConfigurationSoneParser(configuration, sone);
-               Profile profile = configurationSoneParser.parseProfile();
-
-               /* load posts. */
-               Collection<Post> posts;
-               try {
-                       posts = configurationSoneParser.parsePosts(database);
-               } catch (InvalidPostFound ipf) {
-                       logger.log(Level.WARNING, "Invalid post found, aborting load!");
-                       return;
-               }
-
-               /* load replies. */
-               Collection<PostReply> replies;
-               try {
-                       replies = configurationSoneParser.parsePostReplies(database);
-               } catch (InvalidPostReplyFound iprf) {
-                       logger.log(Level.WARNING, "Invalid reply found, aborting load!");
-                       return;
-               }
-
-               /* load post likes. */
-               Set<String> likedPostIds =
-                               configurationSoneParser.parseLikedPostIds();
-
-               /* load reply likes. */
-               Set<String> likedReplyIds =
-                               configurationSoneParser.parseLikedPostReplyIds();
-
-               /* load friends. */
-               Set<String> friends = configurationSoneParser.parseFriends();
-
-               /* load albums. */
-               List<Album> topLevelAlbums;
-               try {
-                       topLevelAlbums =
-                                       configurationSoneParser.parseTopLevelAlbums(database);
-               } catch (InvalidAlbumFound iaf) {
-                       logger.log(Level.WARNING, "Invalid album found, aborting load!");
-                       return;
-               } catch (InvalidParentAlbumFound ipaf) {
-                       logger.log(Level.WARNING, format("Invalid parent album ID: %s",
-                                       ipaf.getAlbumParentId()));
-                       return;
-               }
-
-               /* load images. */
-               try {
-                       configurationSoneParser.parseImages(database);
-               } catch (InvalidImageFound iif) {
-                       logger.log(WARNING, "Invalid image found, aborting load!");
-                       return;
-               } catch (InvalidParentAlbumFound ipaf) {
-                       logger.log(Level.WARNING,
-                                       format("Invalid album image (%s) encountered, aborting load!",
-                                                       ipaf.getAlbumParentId()));
-                       return;
-               }
-
-               /* load avatar. */
-               String avatarId = configuration.getStringValue(sonePrefix + "/Profile/Avatar").getValue(null);
-               if (avatarId != null) {
-                       final Map<String, Image> images =
-                                       configurationSoneParser.getImages();
-                       profile.setAvatar(images.get(avatarId));
-               }
-
-               /* load options. */
-               sone.getOptions().setAutoFollow(configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").getValue(null));
-               sone.getOptions().setSoneInsertNotificationEnabled(configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").getValue(null));
-               sone.getOptions().setShowNewSoneNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").getValue(null));
-               sone.getOptions().setShowNewPostNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").getValue(null));
-               sone.getOptions().setShowNewReplyNotifications(configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").getValue(null));
-               sone.getOptions().setShowCustomAvatars(ShowCustomAvatars.valueOf(configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").getValue(ShowCustomAvatars.NEVER.name())));
-
-               /* if we’re still here, Sone was loaded successfully. */
-               synchronized (sone) {
-                       sone.setTime(soneTime);
-                       sone.setProfile(profile);
-                       sone.setPosts(posts);
-                       sone.setReplies(replies);
-                       sone.setLikePostIds(likedPostIds);
-                       sone.setLikeReplyIds(likedReplyIds);
-                       for (String friendId : friends) {
-                               followSone(sone, friendId);
-                       }
-                       for (Album album : sone.getRootAlbum().getAlbums()) {
-                               sone.getRootAlbum().removeAlbum(album);
-                       }
-                       for (Album album : topLevelAlbums) {
-                               sone.getRootAlbum().addAlbum(album);
-                       }
-                       database.storeSone(sone);
-                       synchronized (soneInserters) {
-                               soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
-                       }
-               }
-               synchronized (knownSones) {
-                       for (String friend : friends) {
-                               knownSones.add(friend);
-                       }
-               }
-               for (Post post : posts) {
-                       post.setKnown(true);
-               }
-               for (PostReply reply : replies) {
-                       reply.setKnown(true);
-               }
-
-               logger.info(String.format("Sone loaded successfully: %s", sone));
-       }
-
-       /**
         * Creates a new post.
         *
         * @param sone
@@ -1155,24 +935,6 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @return The created post
         */
        public Post createPost(Sone sone, Optional<Sone> recipient, String text) {
-               return createPost(sone, recipient, System.currentTimeMillis(), text);
-       }
-
-       /**
-        * Creates a new post.
-        *
-        * @param sone
-        *            The Sone that creates the post
-        * @param recipient
-        *            The recipient Sone, or {@code null} if this post does not have
-        *            a recipient
-        * @param time
-        *            The time of the post
-        * @param text
-        *            The text of the post
-        * @return The created post
-        */
-       public Post createPost(Sone sone, Optional<Sone> recipient, long time, String text) {
                checkNotNull(text, "text must not be null");
                checkArgument(text.trim().length() > 0, "text must not be empty");
                if (!sone.isLocal()) {
@@ -1180,7 +942,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                        return null;
                }
                PostBuilder postBuilder = database.newPostBuilder();
-               postBuilder.from(sone.getId()).randomId().withTime(time).withText(text.trim());
+               postBuilder.from(sone.getId()).randomId().currentTime().withText(text.trim());
                if (recipient.isPresent()) {
                        postBuilder.to(recipient.get().getId());
                }
@@ -1226,16 +988,8 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                }
        }
 
-       /**
-        * Bookmarks the post with the given ID.
-        *
-        * @param id
-        *            The ID of the post to bookmark
-        */
-       public void bookmarkPost(String id) {
-               synchronized (bookmarkedPosts) {
-                       bookmarkedPosts.add(id);
-               }
+       public void bookmarkPost(Post post) {
+               database.bookmarkPost(post);
        }
 
        /**
@@ -1244,20 +998,8 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * @param post
         *            The post to unbookmark
         */
-       public void unbookmark(Post post) {
-               unbookmarkPost(post.getId());
-       }
-
-       /**
-        * Removes the post with the given ID from the bookmarks.
-        *
-        * @param id
-        *            The ID of the post to unbookmark
-        */
-       public void unbookmarkPost(String id) {
-               synchronized (bookmarkedPosts) {
-                       bookmarkedPosts.remove(id);
-               }
+       public void unbookmarkPost(Post post) {
+               database.unbookmarkPost(post);
        }
 
        /**
@@ -1470,9 +1212,6 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                        sleep(1000);
                        long now = System.currentTimeMillis();
                        if (shouldStop() || ((lastConfigurationUpdate > lastSaved) && ((now - lastConfigurationUpdate) > 5000))) {
-                               for (Sone localSone : getLocalSones()) {
-                                       saveSone(localSone);
-                               }
                                saveConfiguration();
                                lastSaved = now;
                        }
@@ -1486,13 +1225,12 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        public void serviceStop() {
                localElementTicker.shutdownNow();
                synchronized (soneInserters) {
-                       for (Entry<Sone, SoneInserter> soneInserter : soneInserters.entrySet()) {
+                       for (Entry<LocalSone, SoneInserter> soneInserter : soneInserters.entrySet()) {
                                soneInserter.getValue().stop();
-                               saveSone(soneInserter.getKey());
                        }
                }
-               saveConfiguration();
                database.stop();
+               saveConfiguration();
                webOfTrustUpdater.stop();
                updateChecker.stop();
                soneDownloader.stop();
@@ -1505,144 +1243,6 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        //
 
        /**
-        * Saves the given Sone. This will persist all local settings for the given
-        * Sone, such as the friends list and similar, private options.
-        *
-        * @param sone
-        *            The Sone to save
-        */
-       private synchronized void saveSone(Sone sone) {
-               if (!sone.isLocal()) {
-                       logger.log(Level.FINE, String.format("Tried to save non-local Sone: %s", sone));
-                       return;
-               }
-               if (!(sone.getIdentity() instanceof OwnIdentity)) {
-                       logger.log(Level.WARNING, String.format("Local Sone without OwnIdentity found, refusing to save: %s", sone));
-                       return;
-               }
-
-               logger.log(Level.INFO, String.format("Saving Sone: %s", sone));
-               try {
-                       /* save Sone into configuration. */
-                       String sonePrefix = "Sone/" + sone.getId();
-                       configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
-                       configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
-
-                       /* save profile. */
-                       Profile profile = sone.getProfile();
-                       configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
-                       configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
-                       configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
-                       configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
-                       configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
-                       configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
-                       configuration.getStringValue(sonePrefix + "/Profile/Avatar").setValue(profile.getAvatar());
-
-                       /* save profile fields. */
-                       int fieldCounter = 0;
-                       for (Field profileField : profile.getFields()) {
-                               String fieldPrefix = sonePrefix + "/Profile/Fields/" + fieldCounter++;
-                               configuration.getStringValue(fieldPrefix + "/Name").setValue(profileField.getName());
-                               configuration.getStringValue(fieldPrefix + "/Value").setValue(profileField.getValue());
-                       }
-                       configuration.getStringValue(sonePrefix + "/Profile/Fields/" + fieldCounter + "/Name").setValue(null);
-
-                       /* save posts. */
-                       int postCounter = 0;
-                       for (Post post : sone.getPosts()) {
-                               String postPrefix = sonePrefix + "/Posts/" + postCounter++;
-                               configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
-                               configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipientId().orNull());
-                               configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
-                               configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
-                       }
-                       configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
-
-                       /* save replies. */
-                       int replyCounter = 0;
-                       for (PostReply reply : sone.getReplies()) {
-                               String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
-                               configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
-                               configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPostId());
-                               configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
-                               configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
-                       }
-                       configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
-
-                       /* save post likes. */
-                       int postLikeCounter = 0;
-                       for (String postId : sone.getLikedPostIds()) {
-                               configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
-                       }
-                       configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
-
-                       /* save reply likes. */
-                       int replyLikeCounter = 0;
-                       for (String replyId : sone.getLikedReplyIds()) {
-                               configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
-                       }
-                       configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
-
-                       /* save friends. */
-                       int friendCounter = 0;
-                       for (String friendId : sone.getFriends()) {
-                               configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
-                       }
-                       configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
-
-                       /* save albums. first, collect in a flat structure, top-level first. */
-                       List<Album> albums = FluentIterable.from(sone.getRootAlbum().getAlbums()).transformAndConcat(Album.FLATTENER).toList();
-
-                       int albumCounter = 0;
-                       for (Album album : albums) {
-                               String albumPrefix = sonePrefix + "/Albums/" + albumCounter++;
-                               configuration.getStringValue(albumPrefix + "/ID").setValue(album.getId());
-                               configuration.getStringValue(albumPrefix + "/Title").setValue(album.getTitle());
-                               configuration.getStringValue(albumPrefix + "/Description").setValue(album.getDescription());
-                               configuration.getStringValue(albumPrefix + "/Parent").setValue(album.getParent().equals(sone.getRootAlbum()) ? null : album.getParent().getId());
-                               configuration.getStringValue(albumPrefix + "/AlbumImage").setValue(album.getAlbumImage() == null ? null : album.getAlbumImage().getId());
-                       }
-                       configuration.getStringValue(sonePrefix + "/Albums/" + albumCounter + "/ID").setValue(null);
-
-                       /* save images. */
-                       int imageCounter = 0;
-                       for (Album album : albums) {
-                               for (Image image : album.getImages()) {
-                                       if (!image.isInserted()) {
-                                               continue;
-                                       }
-                                       String imagePrefix = sonePrefix + "/Images/" + imageCounter++;
-                                       configuration.getStringValue(imagePrefix + "/ID").setValue(image.getId());
-                                       configuration.getStringValue(imagePrefix + "/Album").setValue(album.getId());
-                                       configuration.getStringValue(imagePrefix + "/Key").setValue(image.getKey());
-                                       configuration.getStringValue(imagePrefix + "/Title").setValue(image.getTitle());
-                                       configuration.getStringValue(imagePrefix + "/Description").setValue(image.getDescription());
-                                       configuration.getLongValue(imagePrefix + "/CreationTime").setValue(image.getCreationTime());
-                                       configuration.getIntValue(imagePrefix + "/Width").setValue(image.getWidth());
-                                       configuration.getIntValue(imagePrefix + "/Height").setValue(image.getHeight());
-                               }
-                       }
-                       configuration.getStringValue(sonePrefix + "/Images/" + imageCounter + "/ID").setValue(null);
-
-                       /* save options. */
-                       configuration.getBooleanValue(sonePrefix + "/Options/AutoFollow").setValue(sone.getOptions().isAutoFollow());
-                       configuration.getBooleanValue(sonePrefix + "/Options/EnableSoneInsertNotifications").setValue(sone.getOptions().isSoneInsertNotificationEnabled());
-                       configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewSones").setValue(sone.getOptions().isShowNewSoneNotifications());
-                       configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewPosts").setValue(sone.getOptions().isShowNewPostNotifications());
-                       configuration.getBooleanValue(sonePrefix + "/Options/ShowNotification/NewReplies").setValue(sone.getOptions().isShowNewReplyNotifications());
-                       configuration.getStringValue(sonePrefix + "/Options/ShowCustomAvatars").setValue(sone.getOptions().getShowCustomAvatars().name());
-
-                       configuration.save();
-
-                       webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
-
-                       logger.log(Level.INFO, String.format("Sone %s saved.", sone));
-               } catch (ConfigurationException ce1) {
-                       logger.log(Level.WARNING, String.format("Could not save Sone: %s", sone), ce1);
-               }
-       }
-
-       /**
         * Saves the current options.
         */
        private void saveConfiguration() {
@@ -1656,51 +1256,11 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
 
                /* store the options first. */
                try {
-                       configuration.getIntValue("Option/ConfigurationVersion").setValue(0);
-                       configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
-                       configuration.getIntValue("Option/PostsPerPage").setValue(options.getIntegerOption("PostsPerPage").getReal());
-                       configuration.getIntValue("Option/ImagesPerPage").setValue(options.getIntegerOption("ImagesPerPage").getReal());
-                       configuration.getIntValue("Option/CharactersPerPost").setValue(options.getIntegerOption("CharactersPerPost").getReal());
-                       configuration.getIntValue("Option/PostCutOffLength").setValue(options.getIntegerOption("PostCutOffLength").getReal());
-                       configuration.getBooleanValue("Option/RequireFullAccess").setValue(options.getBooleanOption("RequireFullAccess").getReal());
-                       configuration.getIntValue("Option/PositiveTrust").setValue(options.getIntegerOption("PositiveTrust").getReal());
-                       configuration.getIntValue("Option/NegativeTrust").setValue(options.getIntegerOption("NegativeTrust").getReal());
-                       configuration.getStringValue("Option/TrustComment").setValue(options.getStringOption("TrustComment").getReal());
-                       configuration.getBooleanValue("Option/ActivateFcpInterface").setValue(options.getBooleanOption("ActivateFcpInterface").getReal());
-                       configuration.getIntValue("Option/FcpFullAccessRequired").setValue(options.getIntegerOption("FcpFullAccessRequired").getReal());
-
-                       /* save known Sones. */
-                       int soneCounter = 0;
-                       synchronized (knownSones) {
-                               for (String knownSoneId : knownSones) {
-                                       configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
-                               }
-                               configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
-                       }
-
-                       /* save Sone following times. */
-                       soneCounter = 0;
-                       synchronized (soneFollowingTimes) {
-                               for (Entry<String, Long> soneFollowingTime : soneFollowingTimes.entrySet()) {
-                                       configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(soneFollowingTime.getKey());
-                                       configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").setValue(soneFollowingTime.getValue());
-                                       ++soneCounter;
-                               }
-                               configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").setValue(null);
-                       }
+                       preferences.saveTo(configuration);
 
                        /* save known posts. */
                        database.save();
 
-                       /* save bookmarked posts. */
-                       int bookmarkedPostCounter = 0;
-                       synchronized (bookmarkedPosts) {
-                               for (String bookmarkedPostId : bookmarkedPosts) {
-                                       configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(bookmarkedPostId);
-                               }
-                       }
-                       configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").setValue(null);
-
                        /* now save it. */
                        configuration.save();
 
@@ -1719,84 +1279,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
         * Loads the configuration.
         */
        private void loadConfiguration() {
-               /* create options. */
-               options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new IntegerRangePredicate(0, Integer.MAX_VALUE)));
-               options.addIntegerOption("PostsPerPage", new DefaultOption<Integer>(10, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
-               options.addIntegerOption("ImagesPerPage", new DefaultOption<Integer>(9, new IntegerRangePredicate(1, Integer.MAX_VALUE)));
-               options.addIntegerOption("CharactersPerPost", new DefaultOption<Integer>(400, Predicates.<Integer> or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
-               options.addIntegerOption("PostCutOffLength", new DefaultOption<Integer>(200, Predicates.<Integer> or(new IntegerRangePredicate(50, Integer.MAX_VALUE), Predicates.equalTo(-1))));
-               options.addBooleanOption("RequireFullAccess", new DefaultOption<Boolean>(false));
-               options.addIntegerOption("PositiveTrust", new DefaultOption<Integer>(75, new IntegerRangePredicate(0, 100)));
-               options.addIntegerOption("NegativeTrust", new DefaultOption<Integer>(-25, new IntegerRangePredicate(-100, 100)));
-               options.addStringOption("TrustComment", new DefaultOption<String>("Set from Sone Web Interface"));
-               options.addBooleanOption("ActivateFcpInterface", new DefaultOption<Boolean>(false));
-               options.addIntegerOption("FcpFullAccessRequired", new DefaultOption<Integer>(2, fcpInterface.new SetFullAccessRequired()));
-
-               loadConfigurationValue("InsertionDelay");
-               loadConfigurationValue("PostsPerPage");
-               loadConfigurationValue("ImagesPerPage");
-               loadConfigurationValue("CharactersPerPost");
-               loadConfigurationValue("PostCutOffLength");
-               options.getBooleanOption("RequireFullAccess").set(configuration.getBooleanValue("Option/RequireFullAccess").getValue(null));
-               loadConfigurationValue("PositiveTrust");
-               loadConfigurationValue("NegativeTrust");
-               options.getStringOption("TrustComment").set(configuration.getStringValue("Option/TrustComment").getValue(null));
-               options.getBooleanOption("ActivateFcpInterface").set(configuration.getBooleanValue("Option/ActivateFcpInterface").getValue(null));
-               options.getIntegerOption("FcpFullAccessRequired").set(configuration.getIntValue("Option/FcpFullAccessRequired").getValue(null));
-
-               /* load known Sones. */
-               int soneCounter = 0;
-               while (true) {
-                       String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
-                       if (knownSoneId == null) {
-                               break;
-                       }
-                       synchronized (knownSones) {
-                               knownSones.add(knownSoneId);
-                       }
-               }
-
-               /* load Sone following times. */
-               soneCounter = 0;
-               while (true) {
-                       String soneId = configuration.getStringValue("SoneFollowingTimes/" + soneCounter + "/Sone").getValue(null);
-                       if (soneId == null) {
-                               break;
-                       }
-                       long time = configuration.getLongValue("SoneFollowingTimes/" + soneCounter + "/Time").getValue(Long.MAX_VALUE);
-                       synchronized (soneFollowingTimes) {
-                               soneFollowingTimes.put(soneId, time);
-                       }
-                       ++soneCounter;
-               }
-
-               /* load bookmarked posts. */
-               int bookmarkedPostCounter = 0;
-               while (true) {
-                       String bookmarkedPostId = configuration.getStringValue("Bookmarks/Post/" + bookmarkedPostCounter++ + "/ID").getValue(null);
-                       if (bookmarkedPostId == null) {
-                               break;
-                       }
-                       synchronized (bookmarkedPosts) {
-                               bookmarkedPosts.add(bookmarkedPostId);
-                       }
-               }
-
-       }
-
-       /**
-        * Loads an {@link Integer} configuration value for the option with the
-        * given name, logging validation failures.
-        *
-        * @param optionName
-        *            The name of the option to load
-        */
-       private void loadConfigurationValue(String optionName) {
-               try {
-                       options.getIntegerOption(optionName).set(configuration.getIntValue("Option/" + optionName).getValue(null));
-               } catch (IllegalArgumentException iae1) {
-                       logger.log(Level.WARNING, String.format("Invalid value for %s in configuration, using default.", optionName));
-               }
+               new PreferencesLoader(preferences).loadFrom(configuration);
        }
 
        /**
@@ -1854,7 +1337,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                if (sone.isLocal()) {
                        return;
                }
-               sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), sone.getLatestEdition()));
+               sone.setLatestEdition(fromNullable(tryParse(identity.getProperty("Sone.LatestEdition"))).or(sone.getLatestEdition()));
                soneDownloader.addSone(sone);
                soneDownloaders.execute(soneDownloader.fetchSoneAction(sone));
        }
@@ -1883,19 +1366,18 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
                        /* TODO - we don’t have the Sone anymore. should this happen? */
                        return;
                }
-               database.removePosts(sone.get());
-               for (Post post : sone.get().getPosts()) {
-                       eventBus.post(new PostRemovedEvent(post));
-               }
-               database.removePostReplies(sone.get());
-               for (PostReply reply : sone.get().getReplies()) {
-                       eventBus.post(new PostReplyRemovedEvent(reply));
-               }
-//             TODO – implement in database
-//             sones.remove(identity.getId());
+               database.removeSone(sone.get());
                eventBus.post(new SoneRemovedEvent(sone.get()));
        }
 
+       @Subscribe
+       public void soneInserted(SoneInsertedEvent soneInsertedEvent) {
+               Sone sone = soneInsertedEvent.sone();
+               database.setLastInsertFingerprint(sone, soneInsertedEvent.insertFingerprint());
+               webOfTrustUpdater.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(
+                               sone.getLatestEdition()));
+       }
+
        /**
         * Deletes the temporary image.
         *