src/main/java/net/pterodactylus/sone/core/Core.java

   1 /*
   2  * Sone - Core.java - Copyright © 2010 David Roden
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.pterodactylus.sone.core;
  19
  20 import java.net.MalformedURLException;
  21 import java.util.ArrayList;
  22 import java.util.Collections;
  23 import java.util.HashMap;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Set;
  28 import java.util.logging.Level;
  29 import java.util.logging.Logger;
  30
  31 import net.pterodactylus.sone.core.Options.DefaultOption;
  32 import net.pterodactylus.sone.core.Options.Option;
  33 import net.pterodactylus.sone.core.Options.OptionWatcher;
  34 import net.pterodactylus.sone.data.Client;
  35 import net.pterodactylus.sone.data.Post;
  36 import net.pterodactylus.sone.data.Profile;
  37 import net.pterodactylus.sone.data.Reply;
  38 import net.pterodactylus.sone.data.Sone;
  39 import net.pterodactylus.sone.freenet.wot.Identity;
  40 import net.pterodactylus.sone.freenet.wot.IdentityListener;
  41 import net.pterodactylus.sone.freenet.wot.IdentityManager;
  42 import net.pterodactylus.sone.freenet.wot.OwnIdentity;
  43 import net.pterodactylus.sone.main.SonePlugin;
  44 import net.pterodactylus.util.config.Configuration;
  45 import net.pterodactylus.util.config.ConfigurationException;
  46 import net.pterodactylus.util.logging.Logging;
  47 import net.pterodactylus.util.number.Numbers;
  48 import freenet.keys.FreenetURI;
  49
  50 /**
  51  * The Sone core.
  52  *
  53  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  54  */
  55 public class Core implements IdentityListener {
  56
  57         /**
  58          * Enumeration for the possible states of a {@link Sone}.
  59          *
  60          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  61          */
  62         public enum SoneStatus {
  63
  64                 /** The Sone is unknown, i.e. not yet downloaded. */
  65                 unknown,
  66
  67                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  68                 idle,
  69
  70                 /** The Sone is currently being inserted. */
  71                 inserting,
  72
  73                 /** The Sone is currently being downloaded. */
  74                 downloading,
  75         }
  76
  77         /** The logger. */
  78         private static final Logger logger = Logging.getLogger(Core.class);
  79
  80         /** The options. */
  81         private final Options options = new Options();
  82
  83         /** The core listener manager. */
  84         private final CoreListenerManager coreListenerManager = new CoreListenerManager(this);
  85
  86         /** The configuration. */
  87         private final Configuration configuration;
  88
  89         /** The identity manager. */
  90         private final IdentityManager identityManager;
  91
  92         /** Interface to freenet. */
  93         private final FreenetInterface freenetInterface;
  94
  95         /** The Sone downloader. */
  96         private final SoneDownloader soneDownloader;
  97
  98         /** Whether the core has been stopped. */
  99         private volatile boolean stopped;
 100
 101         /** The Sones’ statuses. */
 102         /* synchronize access on itself. */
 103         private final Map<Sone, SoneStatus> soneStatuses = new HashMap<Sone, SoneStatus>();
 104
 105         /** Sone inserters. */
 106         /* synchronize access on this on localSones. */
 107         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 108
 109         /** All local Sones. */
 110         /* synchronize access on this on itself. */
 111         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 112
 113         /** All remote Sones. */
 114         /* synchronize access on this on itself. */
 115         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 116
 117         /** All new Sones. */
 118         private Set<String> newSones = new HashSet<String>();
 119
 120         /** All known Sones. */
 121         /* synchronize access on {@link #newSones}. */
 122         private Set<String> knownSones = new HashSet<String>();
 123
 124         /** All posts. */
 125         private Map<String, Post> posts = new HashMap<String, Post>();
 126
 127         /** All new posts. */
 128         private Set<String> newPosts = new HashSet<String>();
 129
 130         /** All known posts. */
 131         /* synchronize access on {@link #newPosts}. */
 132         private Set<String> knownPosts = new HashSet<String>();
 133
 134         /** All replies. */
 135         private Map<String, Reply> replies = new HashMap<String, Reply>();
 136
 137         /** All new replies. */
 138         private Set<String> newReplies = new HashSet<String>();
 139
 140         /** All known replies. */
 141         private Set<String> knownReplies = new HashSet<String>();
 142
 143         /**
 144          * Creates a new core.
 145          *
 146          * @param configuration
 147          *            The configuration of the core
 148          * @param freenetInterface
 149          *            The freenet interface
 150          * @param identityManager
 151          *            The identity manager
 152          */
 153         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 154                 this.configuration = configuration;
 155                 this.freenetInterface = freenetInterface;
 156                 this.identityManager = identityManager;
 157                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 158         }
 159
 160         //
 161         // LISTENER MANAGEMENT
 162         //
 163
 164         /**
 165          * Adds a new core listener.
 166          *
 167          * @param coreListener
 168          *            The listener to add
 169          */
 170         public void addCoreListener(CoreListener coreListener) {
 171                 coreListenerManager.addListener(coreListener);
 172         }
 173
 174         /**
 175          * Removes a core listener.
 176          *
 177          * @param coreListener
 178          *            The listener to remove
 179          */
 180         public void removeCoreListener(CoreListener coreListener) {
 181                 coreListenerManager.removeListener(coreListener);
 182         }
 183
 184         //
 185         // ACCESSORS
 186         //
 187
 188         /**
 189          * Returns the options used by the core.
 190          *
 191          * @return The options of the core
 192          */
 193         public Options getOptions() {
 194                 return options;
 195         }
 196
 197         /**
 198          * Returns whether the “Sone rescue mode” is currently activated.
 199          *
 200          * @return {@code true} if the “Sone rescue mode” is currently activated,
 201          *         {@code false} if it is not
 202          */
 203         public boolean isSoneRescueMode() {
 204                 return options.getBooleanOption("SoneRescueMode").get();
 205         }
 206
 207         /**
 208          * Returns the identity manager used by the core.
 209          *
 210          * @return The identity manager
 211          */
 212         public IdentityManager getIdentityManager() {
 213                 return identityManager;
 214         }
 215
 216         /**
 217          * Returns the status of the given Sone.
 218          *
 219          * @param sone
 220          *            The Sone to get the status for
 221          * @return The status of the Sone
 222          */
 223         public SoneStatus getSoneStatus(Sone sone) {
 224                 synchronized (soneStatuses) {
 225                         return soneStatuses.get(sone);
 226                 }
 227         }
 228
 229         /**
 230          * Sets the status of the given Sone.
 231          *
 232          * @param sone
 233          *            The Sone to set the status of
 234          * @param soneStatus
 235          *            The status to set
 236          */
 237         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 238                 synchronized (soneStatuses) {
 239                         soneStatuses.put(sone, soneStatus);
 240                 }
 241         }
 242
 243         /**
 244          * Returns all Sones, remote and local.
 245          *
 246          * @return All Sones
 247          */
 248         public Set<Sone> getSones() {
 249                 Set<Sone> allSones = new HashSet<Sone>();
 250                 allSones.addAll(getLocalSones());
 251                 allSones.addAll(getRemoteSones());
 252                 return allSones;
 253         }
 254
 255         /**
 256          * Returns the Sone with the given ID, regardless whether it’s local or
 257          * remote.
 258          *
 259          * @param id
 260          *            The ID of the Sone to get
 261          * @return The Sone with the given ID, or {@code null} if there is no such
 262          *         Sone
 263          */
 264         public Sone getSone(String id) {
 265                 return getSone(id, true);
 266         }
 267
 268         /**
 269          * Returns the Sone with the given ID, regardless whether it’s local or
 270          * remote.
 271          *
 272          * @param id
 273          *            The ID of the Sone to get
 274          * @param create
 275          *            {@code true} to create a new Sone if none exists,
 276          *            {@code false} to return {@code null} if a Sone with the given
 277          *            ID does not exist
 278          * @return The Sone with the given ID, or {@code null} if there is no such
 279          *         Sone
 280          */
 281         public Sone getSone(String id, boolean create) {
 282                 if (isLocalSone(id)) {
 283                         return getLocalSone(id);
 284                 }
 285                 return getRemoteSone(id, create);
 286         }
 287
 288         /**
 289          * Checks whether the core knows a Sone with the given ID.
 290          *
 291          * @param id
 292          *            The ID of the Sone
 293          * @return {@code true} if there is a Sone with the given ID, {@code false}
 294          *         otherwise
 295          */
 296         public boolean hasSone(String id) {
 297                 return isLocalSone(id) || isRemoteSone(id);
 298         }
 299
 300         /**
 301          * Returns whether the given Sone is a local Sone.
 302          *
 303          * @param sone
 304          *            The Sone to check for its locality
 305          * @return {@code true} if the given Sone is local, {@code false} otherwise
 306          */
 307         public boolean isLocalSone(Sone sone) {
 308                 synchronized (localSones) {
 309                         return localSones.containsKey(sone.getId());
 310                 }
 311         }
 312
 313         /**
 314          * Returns whether the given ID is the ID of a local Sone.
 315          *
 316          * @param id
 317          *            The Sone ID to check for its locality
 318          * @return {@code true} if the given ID is a local Sone, {@code false}
 319          *         otherwise
 320          */
 321         public boolean isLocalSone(String id) {
 322                 synchronized (localSones) {
 323                         return localSones.containsKey(id);
 324                 }
 325         }
 326
 327         /**
 328          * Returns all local Sones.
 329          *
 330          * @return All local Sones
 331          */
 332         public Set<Sone> getLocalSones() {
 333                 synchronized (localSones) {
 334                         return new HashSet<Sone>(localSones.values());
 335                 }
 336         }
 337
 338         /**
 339          * Returns the local Sone with the given ID.
 340          *
 341          * @param id
 342          *            The ID of the Sone to get
 343          * @return The Sone with the given ID
 344          */
 345         public Sone getLocalSone(String id) {
 346                 return getLocalSone(id, true);
 347         }
 348
 349         /**
 350          * Returns the local Sone with the given ID, optionally creating a new Sone.
 351          *
 352          * @param id
 353          *            The ID of the Sone
 354          * @param create
 355          *            {@code true} to create a new Sone if none exists,
 356          *            {@code false} to return null if none exists
 357          * @return The Sone with the given ID, or {@code null}
 358          */
 359         public Sone getLocalSone(String id, boolean create) {
 360                 synchronized (localSones) {
 361                         Sone sone = localSones.get(id);
 362                         if ((sone == null) && create) {
 363                                 sone = new Sone(id);
 364                                 localSones.put(id, sone);
 365                         }
 366                         return sone;
 367                 }
 368         }
 369
 370         /**
 371          * Returns all remote Sones.
 372          *
 373          * @return All remote Sones
 374          */
 375         public Set<Sone> getRemoteSones() {
 376                 synchronized (remoteSones) {
 377                         return new HashSet<Sone>(remoteSones.values());
 378                 }
 379         }
 380
 381         /**
 382          * Returns the remote Sone with the given ID.
 383          *
 384          * @param id
 385          *            The ID of the remote Sone to get
 386          * @return The Sone with the given ID
 387          */
 388         public Sone getRemoteSone(String id) {
 389                 return getRemoteSone(id, true);
 390         }
 391
 392         /**
 393          * Returns the remote Sone with the given ID.
 394          *
 395          * @param id
 396          *            The ID of the remote Sone to get
 397          * @param create
 398          *            {@code true} to always create a Sone, {@code false} to return
 399          *            {@code null} if no Sone with the given ID exists
 400          * @return The Sone with the given ID
 401          */
 402         public Sone getRemoteSone(String id, boolean create) {
 403                 synchronized (remoteSones) {
 404                         Sone sone = remoteSones.get(id);
 405                         if ((sone == null) && create) {
 406                                 sone = new Sone(id);
 407                                 remoteSones.put(id, sone);
 408                         }
 409                         return sone;
 410                 }
 411         }
 412
 413         /**
 414          * Returns whether the given Sone is a remote Sone.
 415          *
 416          * @param sone
 417          *            The Sone to check
 418          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 419          *         otherwise
 420          */
 421         public boolean isRemoteSone(Sone sone) {
 422                 synchronized (remoteSones) {
 423                         return remoteSones.containsKey(sone.getId());
 424                 }
 425         }
 426
 427         /**
 428          * Returns whether the Sone with the given ID is a remote Sone.
 429          *
 430          * @param id
 431          *            The ID of the Sone to check
 432          * @return {@code true} if the Sone with the given ID is a remote Sone,
 433          *         {@code false} otherwise
 434          */
 435         public boolean isRemoteSone(String id) {
 436                 synchronized (remoteSones) {
 437                         return remoteSones.containsKey(id);
 438                 }
 439         }
 440
 441         /**
 442          * Returns whether the given Sone is a new Sone. After this check, the Sone
 443          * is marked as known, i.e. a second call with the same parameters will
 444          * always yield {@code false}.
 445          *
 446          * @param sone
 447          *            The sone to check for
 448          * @return {@code true} if the given Sone is new, false otherwise
 449          */
 450         public boolean isNewSone(Sone sone) {
 451                 synchronized (newSones) {
 452                         boolean isNew = !knownSones.contains(sone.getId()) && newSones.remove(sone.getId());
 453                         knownSones.add(sone.getId());
 454                         if (isNew) {
 455                                 coreListenerManager.fireMarkSoneKnown(sone);
 456                         }
 457                         return isNew;
 458                 }
 459         }
 460
 461         /**
 462          * Returns whether the given Sone has been modified.
 463          *
 464          * @param sone
 465          *            The Sone to check for modifications
 466          * @return {@code true} if a modification has been detected in the Sone,
 467          *         {@code false} otherwise
 468          */
 469         public boolean isModifiedSone(Sone sone) {
 470                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 471         }
 472
 473         /**
 474          * Returns the post with the given ID.
 475          *
 476          * @param postId
 477          *            The ID of the post to get
 478          * @return The post, or {@code null} if there is no such post
 479          */
 480         public Post getPost(String postId) {
 481                 synchronized (posts) {
 482                         Post post = posts.get(postId);
 483                         if (post == null) {
 484                                 post = new Post(postId);
 485                                 posts.put(postId, post);
 486                         }
 487                         return post;
 488                 }
 489         }
 490
 491         /**
 492          * Returns whether the given post ID is new. After this method returns it is
 493          * marked a known post ID.
 494          *
 495          * @param postId
 496          *            The post ID
 497          * @return {@code true} if the post is considered to be new, {@code false}
 498          *         otherwise
 499          */
 500         public boolean isNewPost(String postId) {
 501                 synchronized (newPosts) {
 502                         boolean isNew = !knownPosts.contains(postId) && newPosts.remove(postId);
 503                         knownPosts.add(postId);
 504                         if (isNew) {
 505                                 coreListenerManager.fireMarkPostKnown(getPost(postId));
 506                         }
 507                         return isNew;
 508                 }
 509         }
 510
 511         /**
 512          * Returns the reply with the given ID.
 513          *
 514          * @param replyId
 515          *            The ID of the reply to get
 516          * @return The reply, or {@code null} if there is no such reply
 517          */
 518         public Reply getReply(String replyId) {
 519                 synchronized (replies) {
 520                         Reply reply = replies.get(replyId);
 521                         if (reply == null) {
 522                                 reply = new Reply(replyId);
 523                                 replies.put(replyId, reply);
 524                         }
 525                         return reply;
 526                 }
 527         }
 528
 529         /**
 530          * Returns all replies for the given post, order ascending by time.
 531          *
 532          * @param post
 533          *            The post to get all replies for
 534          * @return All replies for the given post
 535          */
 536         public List<Reply> getReplies(Post post) {
 537                 Set<Sone> sones = getSones();
 538                 List<Reply> replies = new ArrayList<Reply>();
 539                 for (Sone sone : sones) {
 540                         for (Reply reply : sone.getReplies()) {
 541                                 if (reply.getPost().equals(post)) {
 542                                         replies.add(reply);
 543                                 }
 544                         }
 545                 }
 546                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 547                 return replies;
 548         }
 549
 550         /**
 551          * Returns whether the reply with the given ID is new.
 552          *
 553          * @param replyId
 554          *            The ID of the reply to check
 555          * @return {@code true} if the reply is considered to be new, {@code false}
 556          *         otherwise
 557          */
 558         public boolean isNewReply(String replyId) {
 559                 synchronized (newReplies) {
 560                         boolean isNew = !knownReplies.contains(replyId) && newReplies.remove(replyId);
 561                         knownReplies.add(replyId);
 562                         if (isNew) {
 563                                 coreListenerManager.fireMarkReplyKnown(getReply(replyId));
 564                         }
 565                         return isNew;
 566                 }
 567         }
 568
 569         /**
 570          * Returns all Sones that have liked the given post.
 571          *
 572          * @param post
 573          *            The post to get the liking Sones for
 574          * @return The Sones that like the given post
 575          */
 576         public Set<Sone> getLikes(Post post) {
 577                 Set<Sone> sones = new HashSet<Sone>();
 578                 for (Sone sone : getSones()) {
 579                         if (sone.getLikedPostIds().contains(post.getId())) {
 580                                 sones.add(sone);
 581                         }
 582                 }
 583                 return sones;
 584         }
 585
 586         /**
 587          * Returns all Sones that have liked the given reply.
 588          *
 589          * @param reply
 590          *            The reply to get the liking Sones for
 591          * @return The Sones that like the given reply
 592          */
 593         public Set<Sone> getLikes(Reply reply) {
 594                 Set<Sone> sones = new HashSet<Sone>();
 595                 for (Sone sone : getSones()) {
 596                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 597                                 sones.add(sone);
 598                         }
 599                 }
 600                 return sones;
 601         }
 602
 603         //
 604         // ACTIONS
 605         //
 606
 607         /**
 608          * Adds a local Sone from the given ID which has to be the ID of an own
 609          * identity.
 610          *
 611          * @param id
 612          *            The ID of an own identity to add a Sone for
 613          * @return The added (or already existing) Sone
 614          */
 615         public Sone addLocalSone(String id) {
 616                 synchronized (localSones) {
 617                         if (localSones.containsKey(id)) {
 618                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 619                                 return localSones.get(id);
 620                         }
 621                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 622                         if (ownIdentity == null) {
 623                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 624                                 return null;
 625                         }
 626                         return addLocalSone(ownIdentity);
 627                 }
 628         }
 629
 630         /**
 631          * Adds a local Sone from the given own identity.
 632          *
 633          * @param ownIdentity
 634          *            The own identity to create a Sone from
 635          * @return The added (or already existing) Sone
 636          */
 637         public Sone addLocalSone(OwnIdentity ownIdentity) {
 638                 if (ownIdentity == null) {
 639                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 640                         return null;
 641                 }
 642                 synchronized (localSones) {
 643                         final Sone sone;
 644                         try {
 645                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 646                         } catch (MalformedURLException mue1) {
 647                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 648                                 return null;
 649                         }
 650                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 651                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 652                         /* TODO - load posts ’n stuff */
 653                         localSones.put(ownIdentity.getId(), sone);
 654                         SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 655                         soneInserters.put(sone, soneInserter);
 656                         setSoneStatus(sone, SoneStatus.idle);
 657                         loadSone(sone);
 658                         soneInserter.start();
 659                         new Thread(new Runnable() {
 660
 661                                 @Override
 662                                 @SuppressWarnings("synthetic-access")
 663                                 public void run() {
 664                                         soneDownloader.fetchSone(sone);
 665                                 }
 666
 667                         }, "Sone Downloader").start();
 668                         return sone;
 669                 }
 670         }
 671
 672         /**
 673          * Creates a new Sone for the given own identity.
 674          *
 675          * @param ownIdentity
 676          *            The own identity to create a Sone for
 677          * @return The created Sone
 678          */
 679         public Sone createSone(OwnIdentity ownIdentity) {
 680                 identityManager.addContext(ownIdentity, "Sone");
 681                 Sone sone = addLocalSone(ownIdentity);
 682                 return sone;
 683         }
 684
 685         /**
 686          * Adds the Sone of the given identity.
 687          *
 688          * @param identity
 689          *            The identity whose Sone to add
 690          * @return The added or already existing Sone
 691          */
 692         public Sone addRemoteSone(Identity identity) {
 693                 if (identity == null) {
 694                         logger.log(Level.WARNING, "Given Identity is null!");
 695                         return null;
 696                 }
 697                 synchronized (remoteSones) {
 698                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 699                         boolean newSone = sone.getRequestUri() == null;
 700                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 701                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 702                         if (newSone) {
 703                                 synchronized (newSones) {
 704                                         newSone = !knownSones.contains(sone.getId());
 705                                         if (newSone) {
 706                                                 newSones.add(sone.getId());
 707                                         }
 708                                 }
 709                                 if (newSone) {
 710                                         coreListenerManager.fireNewSoneFound(sone);
 711                                 }
 712                         }
 713                         remoteSones.put(identity.getId(), sone);
 714                         soneDownloader.addSone(sone);
 715                         setSoneStatus(sone, SoneStatus.unknown);
 716                         new Thread(new Runnable() {
 717
 718                                 @Override
 719                                 @SuppressWarnings("synthetic-access")
 720                                 public void run() {
 721                                         soneDownloader.fetchSone(sone);
 722                                 }
 723
 724                         }, "Sone Downloader").start();
 725                         return sone;
 726                 }
 727         }
 728
 729         /**
 730          * Updates the stores Sone with the given Sone.
 731          *
 732          * @param sone
 733          *            The updated Sone
 734          */
 735         public void updateSone(Sone sone) {
 736                 if (hasSone(sone.getId())) {
 737                         Sone storedSone = getSone(sone.getId());
 738                         if (!(sone.getTime() > storedSone.getTime())) {
 739                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 740                                 return;
 741                         }
 742                         synchronized (posts) {
 743                                 for (Post post : storedSone.getPosts()) {
 744                                         posts.remove(post.getId());
 745                                 }
 746                                 synchronized (newPosts) {
 747                                         for (Post post : sone.getPosts()) {
 748                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 749                                                         newPosts.add(post.getId());
 750                                                         coreListenerManager.fireNewPostFound(post);
 751                                                 }
 752                                                 posts.put(post.getId(), post);
 753                                         }
 754                                 }
 755                         }
 756                         synchronized (replies) {
 757                                 for (Reply reply : storedSone.getReplies()) {
 758                                         replies.remove(reply.getId());
 759                                 }
 760                                 synchronized (newReplies) {
 761                                         for (Reply reply : sone.getReplies()) {
 762                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 763                                                         newReplies.add(reply.getId());
 764                                                         coreListenerManager.fireNewReplyFound(reply);
 765                                                 }
 766                                                 replies.put(reply.getId(), reply);
 767                                         }
 768                                 }
 769                         }
 770                         synchronized (storedSone) {
 771                                 storedSone.setTime(sone.getTime());
 772                                 storedSone.setClient(sone.getClient());
 773                                 storedSone.setProfile(sone.getProfile());
 774                                 storedSone.setPosts(sone.getPosts());
 775                                 storedSone.setReplies(sone.getReplies());
 776                                 storedSone.setLikePostIds(sone.getLikedPostIds());
 777                                 storedSone.setLikeReplyIds(sone.getLikedReplyIds());
 778                                 storedSone.setLatestEdition(sone.getRequestUri().getEdition());
 779                         }
 780                 }
 781         }
 782
 783         /**
 784          * Deletes the given Sone. This will remove the Sone from the
 785          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
 786          * and remove the context from its identity.
 787          *
 788          * @param sone
 789          *            The Sone to delete
 790          */
 791         public void deleteSone(Sone sone) {
 792                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 793                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
 794                         return;
 795                 }
 796                 synchronized (localSones) {
 797                         if (!localSones.containsKey(sone.getId())) {
 798                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
 799                                 return;
 800                         }
 801                         localSones.remove(sone.getId());
 802                         soneInserters.remove(sone).stop();
 803                 }
 804                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 805                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 806                 try {
 807                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 808                 } catch (ConfigurationException ce1) {
 809                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 810                 }
 811         }
 812
 813         /**
 814          * Loads and updates the given Sone from the configuration. If any error is
 815          * encountered, loading is aborted and the given Sone is not changed.
 816          *
 817          * @param sone
 818          *            The Sone to load and update
 819          */
 820         public void loadSone(Sone sone) {
 821                 if (!isLocalSone(sone)) {
 822                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
 823                         return;
 824                 }
 825
 826                 /* load Sone. */
 827                 String sonePrefix = "Sone/" + sone.getId();
 828                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
 829                 if (soneTime == null) {
 830                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
 831                         return;
 832                 }
 833                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
 834
 835                 /* load profile. */
 836                 Profile profile = new Profile();
 837                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
 838                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
 839                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
 840                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
 841                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
 842                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
 843
 844                 /* load posts. */
 845                 Set<Post> posts = new HashSet<Post>();
 846                 while (true) {
 847                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
 848                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
 849                         if (postId == null) {
 850                                 break;
 851                         }
 852                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
 853                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
 854                         if ((postTime == 0) || (postText == null)) {
 855                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
 856                                 return;
 857                         }
 858                         posts.add(getPost(postId).setSone(sone).setTime(postTime).setText(postText));
 859                 }
 860
 861                 /* load replies. */
 862                 Set<Reply> replies = new HashSet<Reply>();
 863                 while (true) {
 864                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
 865                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
 866                         if (replyId == null) {
 867                                 break;
 868                         }
 869                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
 870                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
 871                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
 872                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
 873                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
 874                                 return;
 875                         }
 876                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
 877                 }
 878
 879                 /* load post likes. */
 880                 Set<String> likedPostIds = new HashSet<String>();
 881                 while (true) {
 882                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
 883                         if (likedPostId == null) {
 884                                 break;
 885                         }
 886                         likedPostIds.add(likedPostId);
 887                 }
 888
 889                 /* load reply likes. */
 890                 Set<String> likedReplyIds = new HashSet<String>();
 891                 while (true) {
 892                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
 893                         if (likedReplyId == null) {
 894                                 break;
 895                         }
 896                         likedReplyIds.add(likedReplyId);
 897                 }
 898
 899                 /* load friends. */
 900                 Set<String> friends = new HashSet<String>();
 901                 while (true) {
 902                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
 903                         if (friendId == null) {
 904                                 break;
 905                         }
 906                         friends.add(friendId);
 907                 }
 908
 909                 /* if we’re still here, Sone was loaded successfully. */
 910                 synchronized (sone) {
 911                         sone.setTime(soneTime);
 912                         sone.setProfile(profile);
 913                         sone.setPosts(posts);
 914                         sone.setReplies(replies);
 915                         sone.setLikePostIds(likedPostIds);
 916                         sone.setLikeReplyIds(likedReplyIds);
 917                         sone.setFriends(friends);
 918                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
 919                 }
 920                 synchronized (newSones) {
 921                         for (String friend : friends) {
 922                                 knownSones.add(friend);
 923                         }
 924                 }
 925                 synchronized (newPosts) {
 926                         for (Post post : posts) {
 927                                 knownPosts.add(post.getId());
 928                         }
 929                 }
 930                 synchronized (newReplies) {
 931                         for (Reply reply : replies) {
 932                                 knownReplies.add(reply.getId());
 933                         }
 934                 }
 935         }
 936
 937         /**
 938          * Saves the given Sone. This will persist all local settings for the given
 939          * Sone, such as the friends list and similar, private options.
 940          *
 941          * @param sone
 942          *            The Sone to save
 943          */
 944         public void saveSone(Sone sone) {
 945                 if (!isLocalSone(sone)) {
 946                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
 947                         return;
 948                 }
 949                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 950                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
 951                         return;
 952                 }
 953
 954                 logger.log(Level.INFO, "Saving Sone: %s", sone);
 955                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
 956                 try {
 957                         /* save Sone into configuration. */
 958                         String sonePrefix = "Sone/" + sone.getId();
 959                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
 960                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
 961
 962                         /* save profile. */
 963                         Profile profile = sone.getProfile();
 964                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
 965                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
 966                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
 967                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
 968                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
 969                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
 970
 971                         /* save posts. */
 972                         int postCounter = 0;
 973                         for (Post post : sone.getPosts()) {
 974                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
 975                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
 976                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
 977                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
 978                         }
 979                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
 980
 981                         /* save replies. */
 982                         int replyCounter = 0;
 983                         for (Reply reply : sone.getReplies()) {
 984                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
 985                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
 986                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
 987                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
 988                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
 989                         }
 990                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
 991
 992                         /* save post likes. */
 993                         int postLikeCounter = 0;
 994                         for (String postId : sone.getLikedPostIds()) {
 995                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
 996                         }
 997                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
 998
 999                         /* save reply likes. */
1000                         int replyLikeCounter = 0;
1001                         for (String replyId : sone.getLikedReplyIds()) {
1002                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1003                         }
1004                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1005
1006                         /* save friends. */
1007                         int friendCounter = 0;
1008                         for (String friendId : sone.getFriends()) {
1009                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1010                         }
1011                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1012
1013                         logger.log(Level.INFO, "Sone %s saved.", sone);
1014                 } catch (ConfigurationException ce1) {
1015                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1016                 }
1017         }
1018
1019         /**
1020          * Creates a new post.
1021          *
1022          * @param sone
1023          *            The Sone that creates the post
1024          * @param text
1025          *            The text of the post
1026          */
1027         public void createPost(Sone sone, String text) {
1028                 createPost(sone, System.currentTimeMillis(), text);
1029         }
1030
1031         /**
1032          * Creates a new post.
1033          *
1034          * @param sone
1035          *            The Sone that creates the post
1036          * @param time
1037          *            The time of the post
1038          * @param text
1039          *            The text of the post
1040          */
1041         public void createPost(Sone sone, long time, String text) {
1042                 if (!isLocalSone(sone)) {
1043                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1044                         return;
1045                 }
1046                 Post post = new Post(sone, time, text);
1047                 synchronized (posts) {
1048                         posts.put(post.getId(), post);
1049                 }
1050                 synchronized (newPosts) {
1051                         knownPosts.add(post.getId());
1052                 }
1053                 sone.addPost(post);
1054                 saveSone(sone);
1055         }
1056
1057         /**
1058          * Deletes the given post.
1059          *
1060          * @param post
1061          *            The post to delete
1062          */
1063         public void deletePost(Post post) {
1064                 if (!isLocalSone(post.getSone())) {
1065                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1066                         return;
1067                 }
1068                 post.getSone().removePost(post);
1069                 synchronized (posts) {
1070                         posts.remove(post.getId());
1071                 }
1072                 saveSone(post.getSone());
1073         }
1074
1075         /**
1076          * Creates a new reply.
1077          *
1078          * @param sone
1079          *            The Sone that creates the reply
1080          * @param post
1081          *            The post that this reply refers to
1082          * @param text
1083          *            The text of the reply
1084          * @return The created reply
1085          */
1086         public Reply createReply(Sone sone, Post post, String text) {
1087                 return createReply(sone, post, System.currentTimeMillis(), text);
1088         }
1089
1090         /**
1091          * Creates a new reply.
1092          *
1093          * @param sone
1094          *            The Sone that creates the reply
1095          * @param post
1096          *            The post that this reply refers to
1097          * @param time
1098          *            The time of the reply
1099          * @param text
1100          *            The text of the reply
1101          * @return The created reply
1102          */
1103         public Reply createReply(Sone sone, Post post, long time, String text) {
1104                 if (!isLocalSone(sone)) {
1105                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1106                         return null;
1107                 }
1108                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1109                 synchronized (replies) {
1110                         replies.put(reply.getId(), reply);
1111                 }
1112                 synchronized (newReplies) {
1113                         knownReplies.add(reply.getId());
1114                 }
1115                 sone.addReply(reply);
1116                 saveSone(sone);
1117                 return reply;
1118         }
1119
1120         /**
1121          * Deletes the given reply.
1122          *
1123          * @param reply
1124          *            The reply to delete
1125          */
1126         public void deleteReply(Reply reply) {
1127                 Sone sone = reply.getSone();
1128                 if (!isLocalSone(sone)) {
1129                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1130                         return;
1131                 }
1132                 synchronized (replies) {
1133                         replies.remove(reply.getId());
1134                 }
1135                 sone.removeReply(reply);
1136                 saveSone(sone);
1137         }
1138
1139         /**
1140          * Starts the core.
1141          */
1142         public void start() {
1143                 loadConfiguration();
1144         }
1145
1146         /**
1147          * Stops the core.
1148          */
1149         public void stop() {
1150                 synchronized (localSones) {
1151                         for (SoneInserter soneInserter : soneInserters.values()) {
1152                                 soneInserter.stop();
1153                         }
1154                 }
1155                 saveConfiguration();
1156                 stopped = true;
1157         }
1158
1159         //
1160         // PRIVATE METHODS
1161         //
1162
1163         /**
1164          * Loads the configuration.
1165          */
1166         @SuppressWarnings("unchecked")
1167         private void loadConfiguration() {
1168                 /* create options. */
1169                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1170
1171                         @Override
1172                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1173                                 SoneInserter.setInsertionDelay(newValue);
1174                         }
1175
1176                 }));
1177                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1178                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1179                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1180
1181                 /* read options from configuration. */
1182                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1183                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1184                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1185                 options.getBooleanOption("ClearOnNextRestart").set(null);
1186                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1187                 if (clearConfiguration) {
1188                         /* stop loading the configuration. */
1189                         return;
1190                 }
1191
1192                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1193                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1194
1195                 /* load known Sones. */
1196                 int soneCounter = 0;
1197                 while (true) {
1198                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1199                         if (knownSoneId == null) {
1200                                 break;
1201                         }
1202                         synchronized (newSones) {
1203                                 knownSones.add(knownSoneId);
1204                         }
1205                 }
1206
1207                 /* load known posts. */
1208                 int postCounter = 0;
1209                 while (true) {
1210                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1211                         if (knownPostId == null) {
1212                                 break;
1213                         }
1214                         synchronized (newPosts) {
1215                                 knownPosts.add(knownPostId);
1216                         }
1217                 }
1218
1219                 /* load known replies. */
1220                 int replyCounter = 0;
1221                 while (true) {
1222                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1223                         if (knownReplyId == null) {
1224                                 break;
1225                         }
1226                         synchronized (newReplies) {
1227                                 knownReplies.add(knownReplyId);
1228                         }
1229                 }
1230
1231         }
1232
1233         /**
1234          * Saves the current options.
1235          */
1236         private void saveConfiguration() {
1237                 /* store the options first. */
1238                 try {
1239                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1240                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1241                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1242                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1243
1244                         /* save known Sones. */
1245                         int soneCounter = 0;
1246                         synchronized (newSones) {
1247                                 for (String knownSoneId : knownSones) {
1248                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1249                                 }
1250                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1251                         }
1252
1253                         /* save known posts. */
1254                         int postCounter = 0;
1255                         synchronized (newPosts) {
1256                                 for (String knownPostId : knownPosts) {
1257                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1258                                 }
1259                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1260                         }
1261
1262                         /* save known replies. */
1263                         int replyCounter = 0;
1264                         synchronized (newReplies) {
1265                                 for (String knownReplyId : knownReplies) {
1266                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1267                                 }
1268                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1269                         }
1270
1271                 } catch (ConfigurationException ce1) {
1272                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1273                 }
1274         }
1275
1276         /**
1277          * Generate a Sone URI from the given URI and latest edition.
1278          *
1279          * @param uriString
1280          *            The URI to derive the Sone URI from
1281          * @return The derived URI
1282          */
1283         private FreenetURI getSoneUri(String uriString) {
1284                 try {
1285                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1286                         return uri;
1287                 } catch (MalformedURLException mue1) {
1288                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1289                         return null;
1290                 }
1291         }
1292
1293         //
1294         // INTERFACE IdentityListener
1295         //
1296
1297         /**
1298          * {@inheritDoc}
1299          */
1300         @Override
1301         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1302                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1303                 if (ownIdentity.hasContext("Sone")) {
1304                         addLocalSone(ownIdentity);
1305                 }
1306         }
1307
1308         /**
1309          * {@inheritDoc}
1310          */
1311         @Override
1312         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1313                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1314         }
1315
1316         /**
1317          * {@inheritDoc}
1318          */
1319         @Override
1320         public void identityAdded(Identity identity) {
1321                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1322                 addRemoteSone(identity);
1323         }
1324
1325         /**
1326          * {@inheritDoc}
1327          */
1328         @Override
1329         public void identityUpdated(final Identity identity) {
1330                 new Thread(new Runnable() {
1331
1332                         @Override
1333                         @SuppressWarnings("synthetic-access")
1334                         public void run() {
1335                                 Sone sone = getRemoteSone(identity.getId());
1336                                 soneDownloader.fetchSone(sone);
1337                         }
1338                 }).start();
1339         }
1340
1341         /**
1342          * {@inheritDoc}
1343          */
1344         @Override
1345         public void identityRemoved(Identity identity) {
1346                 /* TODO */
1347         }
1348
1349 }