Implement “like” button.
[Sone.git] / src / main / java / net / pterodactylus / sone / core / Core.java
index ddca79f..a4b3569 100644 (file)
 package net.pterodactylus.sone.core;
 
 import java.net.MalformedURLException;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
 import net.pterodactylus.sone.core.SoneException.Type;
+import net.pterodactylus.sone.data.Post;
+import net.pterodactylus.sone.data.Profile;
+import net.pterodactylus.sone.data.Reply;
 import net.pterodactylus.sone.data.Sone;
 import net.pterodactylus.util.config.Configuration;
 import net.pterodactylus.util.config.ConfigurationException;
+import net.pterodactylus.util.filter.Filter;
+import net.pterodactylus.util.filter.Filters;
 import net.pterodactylus.util.logging.Logging;
 import net.pterodactylus.util.service.AbstractService;
-import net.pterodactylus.util.text.StringEscaper;
-import net.pterodactylus.util.text.TextException;
+import freenet.client.FetchResult;
 import freenet.keys.FreenetURI;
 
 /**
@@ -43,6 +52,26 @@ import freenet.keys.FreenetURI;
  */
 public class Core extends AbstractService {
 
+       /**
+        * Enumeration for the possible states of a {@link Sone}.
+        *
+        * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+        */
+       public enum SoneStatus {
+
+               /** The Sone is unknown, i.e. not yet downloaded. */
+               unknown,
+
+               /** The Sone is idle, i.e. not being downloaded or inserted. */
+               idle,
+
+               /** The Sone is currently being inserted. */
+               inserting,
+
+               /** The Sone is currently being downloaded. */
+               downloading,
+       }
+
        /** The logger. */
        private static final Logger logger = Logging.getLogger(Core.class);
 
@@ -52,14 +81,34 @@ public class Core extends AbstractService {
        /** Interface to freenet. */
        private FreenetInterface freenetInterface;
 
+       /** The Sone downloader. */
+       private SoneDownloader soneDownloader;
+
        /** The local Sones. */
        private final Set<Sone> localSones = new HashSet<Sone>();
 
+       /** Sone inserters. */
+       private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
+
+       /** The Sones’ statuses. */
+       private final Map<Sone, SoneStatus> soneStatuses = Collections.synchronizedMap(new HashMap<Sone, SoneStatus>());
+
+       /* various caches follow here. */
+
+       /** Cache for all known Sones. */
+       private final Map<String, Sone> soneCache = new HashMap<String, Sone>();
+
+       /** Cache for all known posts. */
+       private final Map<String, Post> postCache = new HashMap<String, Post>();
+
+       /** Cache for all known replies. */
+       private final Map<String, Reply> replyCache = new HashMap<String, Reply>();
+
        /**
         * Creates a new core.
         */
        public Core() {
-               super("Sone Core");
+               super("Sone Core", false);
        }
 
        //
@@ -87,6 +136,8 @@ public class Core extends AbstractService {
         */
        public Core freenetInterface(FreenetInterface freenetInterface) {
                this.freenetInterface = freenetInterface;
+               soneDownloader = new SoneDownloader(this, freenetInterface);
+               soneDownloader.start();
                return this;
        }
 
@@ -95,8 +146,137 @@ public class Core extends AbstractService {
         *
         * @return The local Sones
         */
-       public Set<Sone> localSones() {
-               return localSones;
+       public Set<Sone> getSones() {
+               return Collections.unmodifiableSet(localSones);
+       }
+
+       /**
+        * Returns the Sone with the given ID, or an empty Sone that has been
+        * initialized with the given ID.
+        *
+        * @param soneId
+        *            The ID of the Sone
+        * @return The Sone
+        */
+       public Sone getSone(String soneId) {
+               if (!soneCache.containsKey(soneId)) {
+                       Sone sone = new Sone(soneId);
+                       soneCache.put(soneId, sone);
+                       setSoneStatus(sone, SoneStatus.unknown);
+               }
+               return soneCache.get(soneId);
+       }
+
+       /**
+        * Returns all known sones.
+        *
+        * @return All known sones
+        */
+       public Collection<Sone> getKnownSones() {
+               return soneCache.values();
+       }
+
+       /**
+        * Gets all known Sones that are not local Sones.
+        *
+        * @return All remote Sones
+        */
+       public Collection<Sone> getRemoteSones() {
+               return Filters.filteredCollection(getKnownSones(), new Filter<Sone>() {
+
+                       @Override
+                       @SuppressWarnings("synthetic-access")
+                       public boolean filterObject(Sone object) {
+                               return !localSones.contains(object);
+                       }
+               });
+       }
+
+       /**
+        * Returns the status of the given Sone.
+        *
+        * @param sone
+        *            The Sone to get the status for
+        * @return The status of the Sone
+        */
+       public SoneStatus getSoneStatus(Sone sone) {
+               return soneStatuses.get(sone);
+       }
+
+       /**
+        * Sets the status of the Sone.
+        *
+        * @param sone
+        *            The Sone to set the status for
+        * @param soneStatus
+        *            The status of the Sone
+        */
+       public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
+               soneStatuses.put(sone, soneStatus);
+       }
+
+       /**
+        * Creates a new post and adds it to the given Sone.
+        *
+        * @param sone
+        *            The sone that creates the post
+        * @param text
+        *            The text of the post
+        * @return The created post
+        */
+       public Post createPost(Sone sone, String text) {
+               return createPost(sone, System.currentTimeMillis(), text);
+       }
+
+       /**
+        * Creates a new post and adds it to the given Sone.
+        *
+        * @param sone
+        *            The Sone that creates the post
+        * @param time
+        *            The time of the post
+        * @param text
+        *            The text of the post
+        * @return The created post
+        */
+       public Post createPost(Sone sone, long time, String text) {
+               Post post = getPost(UUID.randomUUID().toString()).setSone(sone).setTime(time).setText(text);
+               sone.addPost(post);
+               return post;
+       }
+
+       /**
+        * Creates a reply.
+        *
+        * @param sone
+        *            The Sone that posts the reply
+        * @param post
+        *            The post the reply refers to
+        * @param text
+        *            The text of the reply
+        * @return The created reply
+        */
+       public Reply createReply(Sone sone, Post post, String text) {
+               return createReply(sone, post, System.currentTimeMillis(), text);
+       }
+
+       /**
+        * Creates a reply.
+        *
+        * @param sone
+        *            The Sone that posts the reply
+        * @param post
+        *            The post the reply refers to
+        * @param time
+        *            The time of the post
+        * @param text
+        *            The text of the reply
+        * @return The created reply
+        */
+       public Reply createReply(Sone sone, Post post, long time, String text) {
+               Reply reply = getReply(UUID.randomUUID().toString()).setSone(sone).setPost(post).setTime(time).setText(text);
+               sone.addReply(reply);
+               return reply;
        }
 
        //
@@ -104,6 +284,35 @@ public class Core extends AbstractService {
        //
 
        /**
+        * Adds a Sone to watch for updates. The Sone needs to be completely
+        * initialized.
+        *
+        * @param sone
+        *            The Sone to watch for updates
+        */
+       public void addSone(Sone sone) {
+               soneCache.put(sone.getId(), sone);
+               if (!localSones.contains(sone)) {
+                       soneDownloader.addSone(sone);
+               }
+       }
+
+       /**
+        * Adds the given Sone.
+        *
+        * @param sone
+        *            The Sone to add
+        */
+       public void addLocalSone(Sone sone) {
+               if (localSones.add(sone)) {
+                       setSoneStatus(sone, SoneStatus.idle);
+                       SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
+                       soneInserter.start();
+                       soneInserters.put(sone, soneInserter);
+               }
+       }
+
+       /**
         * Creates a new Sone at a random location.
         *
         * @param name
@@ -113,7 +322,7 @@ public class Core extends AbstractService {
         *             if a Sone error occurs
         */
        public Sone createSone(String name) throws SoneException {
-               return createSone(name, null, null);
+               return createSone(name, "Sone-" + name, null, null);
        }
 
        /**
@@ -123,6 +332,8 @@ public class Core extends AbstractService {
         *
         * @param name
         *            The name of the Sone
+        * @param documentName
+        *            The document name in the SSK
         * @param requestUri
         *            The request URI of the Sone, or {@link NullPointerException}
         *            to create a Sone at a random location
@@ -133,7 +344,7 @@ public class Core extends AbstractService {
         * @throws SoneException
         *             if a Sone error occurs
         */
-       public Sone createSone(String name, String requestUri, String insertUri) throws SoneException {
+       public Sone createSone(String name, String documentName, String requestUri, String insertUri) throws SoneException {
                if ((name == null) || (name.trim().length() == 0)) {
                        throw new SoneException(Type.INVALID_SONE_NAME);
                }
@@ -150,24 +361,196 @@ public class Core extends AbstractService {
                Sone sone;
                try {
                        logger.log(Level.FINEST, "Creating new Sone “%s” at %s (%s)…", new Object[] { name, finalRequestUri, finalInsertUri });
-                       sone = new Sone(UUID.randomUUID(), name, new FreenetURI(finalRequestUri), new FreenetURI(finalInsertUri));
+                       sone = getSone(UUID.randomUUID().toString()).setName(name).setRequestUri(new FreenetURI(finalRequestUri).setKeyType("USK").setDocName(documentName)).setInsertUri(new FreenetURI(finalInsertUri).setKeyType("USK").setDocName(documentName));
+                       sone.setProfile(new Profile());
+                       /* set modification counter to 1 so it is inserted immediately. */
+                       sone.setModificationCounter(1);
+                       addLocalSone(sone);
                } catch (MalformedURLException mue1) {
                        throw new SoneException(Type.INVALID_URI);
                }
-               localSones.add(sone);
                return sone;
        }
 
        /**
+        * Loads the Sone from the given request URI. The fetching of the data is
+        * performed in a new thread so this method returns immediately.
+        *
+        * @param requestUri
+        *            The request URI to load the Sone from
+        */
+       public void loadSone(final String requestUri) {
+               loadSone(requestUri, null);
+       }
+
+       /**
+        * Loads the Sone from the given request URI. The fetching of the data is
+        * performed in a new thread so this method returns immediately. If
+        * {@code insertUri} is not {@code null} the loaded Sone is converted into a
+        * local Sone and available using as any other local Sone.
+        *
+        * @param requestUri
+        *            The request URI to load the Sone from
+        * @param insertUri
+        *            The insert URI of the Sone
+        */
+       public void loadSone(final String requestUri, final String insertUri) {
+               new Thread(new Runnable() {
+
+                       @Override
+                       @SuppressWarnings("synthetic-access")
+                       public void run() {
+                               try {
+                                       FreenetURI realRequestUri = new FreenetURI(requestUri).setMetaString(new String[] { "sone.xml" });
+                                       FetchResult fetchResult = freenetInterface.fetchUri(realRequestUri);
+                                       if (fetchResult == null) {
+                                               return;
+                                       }
+                                       Sone parsedSone = soneDownloader.parseSone(null, fetchResult, realRequestUri);
+                                       if (parsedSone != null) {
+                                               if (insertUri != null) {
+                                                       parsedSone.setInsertUri(new FreenetURI(insertUri));
+                                                       addLocalSone(parsedSone);
+                                               } else {
+                                                       addSone(parsedSone);
+                                               }
+                                       }
+                               } catch (MalformedURLException mue1) {
+                                       logger.log(Level.INFO, "Could not create URI from “" + requestUri + "”.", mue1);
+                               }
+                       }
+               }, "Sone Downloader").start();
+       }
+
+       /**
+        * Loads and updates the given Sone.
+        *
+        * @param sone
+        *            The Sone to load
+        */
+       public void loadSone(final Sone sone) {
+               new Thread(new Runnable() {
+
+                       @Override
+                       @SuppressWarnings("synthetic-access")
+                       public void run() {
+                               FreenetURI realRequestUri = sone.getRequestUri().setMetaString(new String[] { "sone.xml" });
+                               setSoneStatus(sone, SoneStatus.downloading);
+                               try {
+                                       FetchResult fetchResult = freenetInterface.fetchUri(realRequestUri);
+                                       if (fetchResult == null) {
+                                               /* TODO - mark Sone as bad. */
+                                               return;
+                                       }
+                                       Sone parsedSone = soneDownloader.parseSone(sone, fetchResult, realRequestUri);
+                                       if (parsedSone != null) {
+                                               addSone(parsedSone);
+                                       }
+                               } finally {
+                                       setSoneStatus(sone, (sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
+                               }
+                       }
+               }, "Sone Downloader").start();
+       }
+
+       /**
         * Deletes the given Sone from this plugin instance.
         *
         * @param sone
         *            The sone to delete
         */
        public void deleteSone(Sone sone) {
+               SoneInserter soneInserter = soneInserters.remove(sone);
+               soneInserter.stop();
                localSones.remove(sone);
        }
 
+       /**
+        * Returns the post with the given ID. If no post exists yet with the given
+        * ID, a new post is returned.
+        *
+        * @param postId
+        *            The ID of the post
+        * @return The post
+        */
+       public Post getPost(String postId) {
+               if (!postCache.containsKey(postId)) {
+                       postCache.put(postId, new Post(postId));
+               }
+               return postCache.get(postId);
+       }
+
+       /**
+        * Returns the reply with the given ID. If no reply exists yet with the
+        * given ID, a new reply is returned.
+        *
+        * @param replyId
+        *            The ID of the reply
+        * @return The reply
+        */
+       public Reply getReply(String replyId) {
+               if (!replyCache.containsKey(replyId)) {
+                       replyCache.put(replyId, new Reply(replyId));
+               }
+               return replyCache.get(replyId);
+       }
+
+       /**
+        * Gets all replies to the given post, sorted by date, oldest first.
+        *
+        * @param post
+        *            The post the replies refer to
+        * @return The sorted list of replies for the post
+        */
+       public List<Reply> getReplies(Post post) {
+               List<Reply> replies = new ArrayList<Reply>();
+               for (Reply reply : replyCache.values()) {
+                       if (reply.getPost().equals(post)) {
+                               replies.add(reply);
+                       }
+               }
+               Collections.sort(replies, new Comparator<Reply>() {
+
+                       /**
+                        * {@inheritDoc}
+                        */
+                       @Override
+                       public int compare(Reply leftReply, Reply rightReply) {
+                               return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, leftReply.getTime() - rightReply.getTime()));
+                       }
+               });
+               return replies;
+       }
+
+       /**
+        * Gets all Sones that like the given post.
+        *
+        * @param post
+        *            The post to check for
+        * @return All Sones that like the post
+        */
+       public Set<Sone> getLikes(final Post post) {
+               return Filters.filteredSet(getSones(), new Filter<Sone>() {
+
+                       @Override
+                       public boolean filterObject(Sone sone) {
+                               return sone.isLikedPostId(post.getId());
+                       }
+               });
+       }
+
+       /**
+        * Deletes the given reply. It is removed from its Sone and from the reply
+        * cache.
+        *
+        * @param reply
+        *            The reply to remove
+        */
+       public void deleteReply(Reply reply) {
+               reply.getSone().removeReply(reply);
+               replyCache.remove(reply.getId());
+       }
+
        //
        // SERVICE METHODS
        //
@@ -185,6 +568,11 @@ public class Core extends AbstractService {
         */
        @Override
        protected void serviceStop() {
+               soneDownloader.stop();
+               /* stop all Sone inserters. */
+               for (SoneInserter soneInserter : soneInserters.values()) {
+                       soneInserter.stop();
+               }
                saveConfiguration();
        }
 
@@ -198,30 +586,121 @@ public class Core extends AbstractService {
        private void loadConfiguration() {
                logger.entering(Core.class.getName(), "loadConfiguration()");
 
-               /* get names of all local Sones. */
-               String allSoneNamesString = configuration.getStringValue("Sone/Names").getValue(null);
-               if (allSoneNamesString == null) {
-                       allSoneNamesString = "";
-               }
-               List<String> allSoneNames;
-               try {
-                       allSoneNames = StringEscaper.parseLine(allSoneNamesString);
-               } catch (TextException te1) {
-                       logger.log(Level.WARNING, "Could not parse Sone names: “" + allSoneNamesString + "”", te1);
-                       allSoneNames = Collections.emptyList();
-               }
-
                /* parse local Sones. */
-               logger.log(Level.INFO, "Loading %d Sones…", allSoneNames.size());
-               for (String soneName : allSoneNames) {
-                       String id = configuration.getStringValue("Sone/Name." + soneName + "/ID").getValue(null);
-                       String insertUri = configuration.getStringValue("Sone/Name." + soneName + "/InsertURI").getValue(null);
-                       String requestUri = configuration.getStringValue("Sone/Name." + soneName + "/RequestURI").getValue(null);
+               logger.log(Level.INFO, "Loading Sones…");
+               int soneId = 0;
+               do {
+                       String sonePrefix = "Sone/Sone." + soneId++;
+                       String id = configuration.getStringValue(sonePrefix + "/ID").getValue(null);
+                       if (id == null) {
+                               break;
+                       }
+                       String name = configuration.getStringValue(sonePrefix + "/Name").getValue(null);
+                       long time = configuration.getLongValue(sonePrefix + "/Time").getValue((long) 0);
+                       String insertUri = configuration.getStringValue(sonePrefix + "/InsertURI").getValue(null);
+                       String requestUri = configuration.getStringValue(sonePrefix + "/RequestURI").getValue(null);
+                       long modificationCounter = configuration.getLongValue(sonePrefix + "/ModificationCounter").getValue((long) 0);
+                       String firstName = configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null);
+                       String middleName = configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null);
+                       String lastName = configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null);
                        try {
-                               localSones.add(new Sone(UUID.fromString(id), soneName, new FreenetURI(requestUri), new FreenetURI(insertUri)));
+                               Profile profile = new Profile();
+                               profile.setFirstName(firstName);
+                               profile.setMiddleName(middleName);
+                               profile.setLastName(lastName);
+                               Sone sone = getSone(id).setName(name).setTime(time).setRequestUri(new FreenetURI(requestUri)).setInsertUri(new FreenetURI(insertUri));
+                               sone.setProfile(profile);
+                               int postId = 0;
+                               do {
+                                       String postPrefix = sonePrefix + "/Post." + postId++;
+                                       id = configuration.getStringValue(postPrefix + "/ID").getValue(null);
+                                       if (id == null) {
+                                               break;
+                                       }
+                                       time = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
+                                       String text = configuration.getStringValue(postPrefix + "/Text").getValue(null);
+                                       Post post = getPost(id).setSone(sone).setTime(time).setText(text);
+                                       sone.addPost(post);
+                               } while (true);
+                               int replyCounter = 0;
+                               do {
+                                       String replyPrefix = sonePrefix + "/Reply." + replyCounter++;
+                                       String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
+                                       if (replyId == null) {
+                                               break;
+                                       }
+                                       Post replyPost = getPost(configuration.getStringValue(replyPrefix + "/Post").getValue(null));
+                                       long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue(null);
+                                       String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
+                                       Reply reply = getReply(replyId).setSone(sone).setPost(replyPost).setTime(replyTime).setText(replyText);
+                                       sone.addReply(reply);
+                               } while (true);
+
+                               /* load friends. */
+                               int friendCounter = 0;
+                               while (true) {
+                                       String friendPrefix = sonePrefix + "/Friend." + friendCounter++;
+                                       String friendId = configuration.getStringValue(friendPrefix + "/ID").getValue(null);
+                                       if (friendId == null) {
+                                               break;
+                                       }
+                                       Sone friendSone = getSone(friendId);
+                                       String friendKey = configuration.getStringValue(friendPrefix + "/Key").getValue(null);
+                                       String friendName = configuration.getStringValue(friendPrefix + "/Name").getValue(null);
+                                       friendSone.setRequestUri(new FreenetURI(friendKey)).setName(friendName);
+                                       sone.addFriend(friendSone);
+                               }
+
+                               /* load blocked Sone IDs. */
+                               int blockedSoneCounter = 0;
+                               while (true) {
+                                       String blockedSonePrefix = sonePrefix + "/BlockedSone." + blockedSoneCounter++;
+                                       String blockedSoneId = configuration.getStringValue(blockedSonePrefix + "/ID").getValue(null);
+                                       if (blockedSoneId == null) {
+                                               break;
+                                       }
+                                       sone.addBlockedSoneId(blockedSoneId);
+                               }
+
+                               /* load liked post IDs. */
+                               int likedPostIdCounter = 0;
+                               while (true) {
+                                       String likedPostIdPrefix = sonePrefix + "/LikedPostId." + likedPostIdCounter++;
+                                       String likedPostId = configuration.getStringValue(likedPostIdPrefix + "/ID").getValue(null);
+                                       if (likedPostId == null) {
+                                               break;
+                                       }
+                                       sone.addLikedPostId(likedPostId);
+                               }
+
+                               sone.setModificationCounter(modificationCounter);
+                               addLocalSone(sone);
                        } catch (MalformedURLException mue1) {
                                logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + requestUri + "”) and insertUri (“" + insertUri + "”)!", mue1);
                        }
+               } while (true);
+               logger.log(Level.INFO, "Loaded %d Sones.", getSones().size());
+
+               /* load all known Sones. */
+               int knownSonesCounter = 0;
+               while (true) {
+                       String knownSonePrefix = "KnownSone." + knownSonesCounter++;
+                       String knownSoneId = configuration.getStringValue(knownSonePrefix + "/ID").getValue(null);
+                       if (knownSoneId == null) {
+                               break;
+                       }
+                       String knownSoneName = configuration.getStringValue(knownSonePrefix + "/Name").getValue(null);
+                       String knownSoneKey = configuration.getStringValue(knownSonePrefix + "/Key").getValue(null);
+                       try {
+                               getSone(knownSoneId).setName(knownSoneName).setRequestUri(new FreenetURI(knownSoneKey));
+                       } catch (MalformedURLException mue1) {
+                               logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + knownSoneKey + "”)!", mue1);
+                       }
+               }
+
+               /* load all remote Sones. */
+               for (Sone remoteSone : getRemoteSones()) {
+                       loadSone(remoteSone);
                }
 
                logger.exiting(Core.class.getName(), "loadConfiguration()");
@@ -231,25 +710,85 @@ public class Core extends AbstractService {
         * Saves the configuraiton.
         */
        private void saveConfiguration() {
-
-               /* get the names of all Sones. */
-               Set<String> soneNames = new HashSet<String>();
-               for (Sone sone : localSones) {
-                       soneNames.add(sone.getName());
-               }
-               String soneNamesString = StringEscaper.escapeWords(soneNames);
-
-               logger.log(Level.INFO, "Storing %d Sones…", soneNames.size());
+               Set<Sone> sones = getSones();
+               logger.log(Level.INFO, "Storing %d Sones…", sones.size());
                try {
-                       /* store names of all Sones. */
-                       configuration.getStringValue("Sone/Names").setValue(soneNamesString);
-
                        /* store all Sones. */
+                       int soneId = 0;
                        for (Sone sone : localSones) {
-                               configuration.getStringValue("Sone/Name." + sone.getName() + "/ID").setValue(sone.getId());
-                               configuration.getStringValue("Sone/Name." + sone.getName() + "/RequestURI").setValue(sone.getRequestUri().toString());
-                               configuration.getStringValue("Sone/Name." + sone.getName() + "/InsertURI").setValue(sone.getInsertUri().toString());
+                               String sonePrefix = "Sone/Sone." + soneId++;
+                               configuration.getStringValue(sonePrefix + "/ID").setValue(sone.getId());
+                               configuration.getStringValue(sonePrefix + "/Name").setValue(sone.getName());
+                               configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
+                               configuration.getStringValue(sonePrefix + "/RequestURI").setValue(sone.getRequestUri().toString());
+                               configuration.getStringValue(sonePrefix + "/InsertURI").setValue(sone.getInsertUri().toString());
+                               configuration.getLongValue(sonePrefix + "/ModificationCounter").setValue(sone.getModificationCounter());
+                               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());
+                               int postId = 0;
+                               for (Post post : sone.getPosts()) {
+                                       String postPrefix = sonePrefix + "/Post." + postId++;
+                                       configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
+                                       configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
+                                       configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
+                               }
+                               /* write null ID as terminator. */
+                               configuration.getStringValue(sonePrefix + "/Post." + postId + "/ID").setValue(null);
+
+                               int replyId = 0;
+                               for (Reply reply : sone.getReplies()) {
+                                       String replyPrefix = sonePrefix + "/Reply." + replyId++;
+                                       configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
+                                       configuration.getStringValue(replyPrefix + "/Post").setValue(reply.getPost().getId());
+                                       configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
+                                       configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
+                               }
+                               /* write null ID as terminator. */
+                               configuration.getStringValue(sonePrefix + "/Reply." + replyId + "/ID").setValue(null);
+
+                               int friendId = 0;
+                               for (Sone friend : sone.getFriends()) {
+                                       String friendPrefix = sonePrefix + "/Friend." + friendId++;
+                                       configuration.getStringValue(friendPrefix + "/ID").setValue(friend.getId());
+                                       configuration.getStringValue(friendPrefix + "/Key").setValue(friend.getRequestUri().toString());
+                                       configuration.getStringValue(friendPrefix + "/Name").setValue(friend.getName());
+                               }
+                               /* write null ID as terminator. */
+                               configuration.getStringValue(sonePrefix + "/Friend." + friendId + "/ID").setValue(null);
+
+                               /* write all blocked Sones. */
+                               int blockedSoneCounter = 0;
+                               for (String blockedSoneId : sone.getBlockedSoneIds()) {
+                                       String blockedSonePrefix = sonePrefix + "/BlockedSone." + blockedSoneCounter++;
+                                       configuration.getStringValue(blockedSonePrefix + "/ID").setValue(blockedSoneId);
+                               }
+                               configuration.getStringValue(sonePrefix + "/BlockedSone." + blockedSoneCounter + "/ID").setValue(null);
+
+                               /* write all liked posts. */
+                               int likedPostIdCounter = 0;
+                               for (String soneLikedPostId : sone.getLikedPostIds()) {
+                                       String likedPostIdPrefix = sonePrefix + "/LikedPostId." + likedPostIdCounter++;
+                                       configuration.getStringValue(likedPostIdPrefix + "/ID").setValue(soneLikedPostId);
+                               }
+                               configuration.getStringValue(sonePrefix + "/LikedPostId." + likedPostIdCounter + "/ID").setValue(null);
+
                        }
+                       /* write null ID as terminator. */
+                       configuration.getStringValue("Sone/Sone." + soneId + "/ID").setValue(null);
+
+                       /* write all known Sones. */
+                       int knownSonesCounter = 0;
+                       for (Sone knownSone : getRemoteSones()) {
+                               String knownSonePrefix = "KnownSone." + knownSonesCounter++;
+                               configuration.getStringValue(knownSonePrefix + "/ID").setValue(knownSone.getId());
+                               configuration.getStringValue(knownSonePrefix + "/Name").setValue(knownSone.getName());
+                               configuration.getStringValue(knownSonePrefix + "/Key").setValue(knownSone.getRequestUri().toString());
+                               /* TODO - store all known stuff? */
+                       }
+                       configuration.getStringValue("KnownSone." + knownSonesCounter + "/ID").setValue(null);
+
                } catch (ConfigurationException ce1) {
                        logger.log(Level.WARNING, "Could not store configuration!", ce1);
                }