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 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         /** Locked local Sones. */
 106         /* synchronize on itself. */
 107         private final Set<Sone> lockedSones = new HashSet<Sone>();
 108
 109         /** Sone inserters. */
 110         /* synchronize access on this on localSones. */
 111         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
 112
 113         /** All local Sones. */
 114         /* synchronize access on this on itself. */
 115         private Map<String, Sone> localSones = new HashMap<String, Sone>();
 116
 117         /** All remote Sones. */
 118         /* synchronize access on this on itself. */
 119         private Map<String, Sone> remoteSones = new HashMap<String, Sone>();
 120
 121         /** All new Sones. */
 122         private Set<String> newSones = new HashSet<String>();
 123
 124         /** All known Sones. */
 125         /* synchronize access on {@link #newSones}. */
 126         private Set<String> knownSones = new HashSet<String>();
 127
 128         /** All posts. */
 129         private Map<String, Post> posts = new HashMap<String, Post>();
 130
 131         /** All new posts. */
 132         private Set<String> newPosts = new HashSet<String>();
 133
 134         /** All known posts. */
 135         /* synchronize access on {@link #newPosts}. */
 136         private Set<String> knownPosts = new HashSet<String>();
 137
 138         /** All replies. */
 139         private Map<String, Reply> replies = new HashMap<String, Reply>();
 140
 141         /** All new replies. */
 142         private Set<String> newReplies = new HashSet<String>();
 143
 144         /** All known replies. */
 145         private Set<String> knownReplies = new HashSet<String>();
 146
 147         /**
 148          * Creates a new core.
 149          *
 150          * @param configuration
 151          *            The configuration of the core
 152          * @param freenetInterface
 153          *            The freenet interface
 154          * @param identityManager
 155          *            The identity manager
 156          */
 157         public Core(Configuration configuration, FreenetInterface freenetInterface, IdentityManager identityManager) {
 158                 this.configuration = configuration;
 159                 this.freenetInterface = freenetInterface;
 160                 this.identityManager = identityManager;
 161                 this.soneDownloader = new SoneDownloader(this, freenetInterface);
 162         }
 163
 164         //
 165         // LISTENER MANAGEMENT
 166         //
 167
 168         /**
 169          * Adds a new core listener.
 170          *
 171          * @param coreListener
 172          *            The listener to add
 173          */
 174         public void addCoreListener(CoreListener coreListener) {
 175                 coreListenerManager.addListener(coreListener);
 176         }
 177
 178         /**
 179          * Removes a core listener.
 180          *
 181          * @param coreListener
 182          *            The listener to remove
 183          */
 184         public void removeCoreListener(CoreListener coreListener) {
 185                 coreListenerManager.removeListener(coreListener);
 186         }
 187
 188         //
 189         // ACCESSORS
 190         //
 191
 192         /**
 193          * Sets the configuration to use. This will automatically save the current
 194          * configuration to the given configuration.
 195          *
 196          * @param configuration
 197          *            The new configuration to use
 198          */
 199         public void setConfiguration(Configuration configuration) {
 200                 this.configuration = configuration;
 201                 saveConfiguration();
 202         }
 203
 204         /**
 205          * Returns the options used by the core.
 206          *
 207          * @return The options of the core
 208          */
 209         public Options getOptions() {
 210                 return options;
 211         }
 212
 213         /**
 214          * Returns whether the “Sone rescue mode” is currently activated.
 215          *
 216          * @return {@code true} if the “Sone rescue mode” is currently activated,
 217          *         {@code false} if it is not
 218          */
 219         public boolean isSoneRescueMode() {
 220                 return options.getBooleanOption("SoneRescueMode").get();
 221         }
 222
 223         /**
 224          * Returns the identity manager used by the core.
 225          *
 226          * @return The identity manager
 227          */
 228         public IdentityManager getIdentityManager() {
 229                 return identityManager;
 230         }
 231
 232         /**
 233          * Returns the status of the given Sone.
 234          *
 235          * @param sone
 236          *            The Sone to get the status for
 237          * @return The status of the Sone
 238          */
 239         public SoneStatus getSoneStatus(Sone sone) {
 240                 synchronized (soneStatuses) {
 241                         return soneStatuses.get(sone);
 242                 }
 243         }
 244
 245         /**
 246          * Sets the status of the given Sone.
 247          *
 248          * @param sone
 249          *            The Sone to set the status of
 250          * @param soneStatus
 251          *            The status to set
 252          */
 253         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 254                 synchronized (soneStatuses) {
 255                         soneStatuses.put(sone, soneStatus);
 256                 }
 257         }
 258
 259         /**
 260          * Returns whether the given Sone is currently locked.
 261          *
 262          * @param sone
 263          *            The sone to check
 264          * @return {@code true} if the Sone is locked, {@code false} if it is not
 265          */
 266         public boolean isLocked(Sone sone) {
 267                 synchronized (lockedSones) {
 268                         return lockedSones.contains(sone);
 269                 }
 270         }
 271
 272         /**
 273          * Returns all Sones, remote and local.
 274          *
 275          * @return All Sones
 276          */
 277         public Set<Sone> getSones() {
 278                 Set<Sone> allSones = new HashSet<Sone>();
 279                 allSones.addAll(getLocalSones());
 280                 allSones.addAll(getRemoteSones());
 281                 return allSones;
 282         }
 283
 284         /**
 285          * Returns the Sone with the given ID, regardless whether it’s local or
 286          * remote.
 287          *
 288          * @param id
 289          *            The ID of the Sone to get
 290          * @return The Sone with the given ID, or {@code null} if there is no such
 291          *         Sone
 292          */
 293         public Sone getSone(String id) {
 294                 return getSone(id, true);
 295         }
 296
 297         /**
 298          * Returns the Sone with the given ID, regardless whether it’s local or
 299          * remote.
 300          *
 301          * @param id
 302          *            The ID of the Sone to get
 303          * @param create
 304          *            {@code true} to create a new Sone if none exists,
 305          *            {@code false} to return {@code null} if a Sone with the given
 306          *            ID does not exist
 307          * @return The Sone with the given ID, or {@code null} if there is no such
 308          *         Sone
 309          */
 310         public Sone getSone(String id, boolean create) {
 311                 if (isLocalSone(id)) {
 312                         return getLocalSone(id);
 313                 }
 314                 return getRemoteSone(id, create);
 315         }
 316
 317         /**
 318          * Checks whether the core knows a Sone with the given ID.
 319          *
 320          * @param id
 321          *            The ID of the Sone
 322          * @return {@code true} if there is a Sone with the given ID, {@code false}
 323          *         otherwise
 324          */
 325         public boolean hasSone(String id) {
 326                 return isLocalSone(id) || isRemoteSone(id);
 327         }
 328
 329         /**
 330          * Returns whether the given Sone is a local Sone.
 331          *
 332          * @param sone
 333          *            The Sone to check for its locality
 334          * @return {@code true} if the given Sone is local, {@code false} otherwise
 335          */
 336         public boolean isLocalSone(Sone sone) {
 337                 synchronized (localSones) {
 338                         return localSones.containsKey(sone.getId());
 339                 }
 340         }
 341
 342         /**
 343          * Returns whether the given ID is the ID of a local Sone.
 344          *
 345          * @param id
 346          *            The Sone ID to check for its locality
 347          * @return {@code true} if the given ID is a local Sone, {@code false}
 348          *         otherwise
 349          */
 350         public boolean isLocalSone(String id) {
 351                 synchronized (localSones) {
 352                         return localSones.containsKey(id);
 353                 }
 354         }
 355
 356         /**
 357          * Returns all local Sones.
 358          *
 359          * @return All local Sones
 360          */
 361         public Set<Sone> getLocalSones() {
 362                 synchronized (localSones) {
 363                         return new HashSet<Sone>(localSones.values());
 364                 }
 365         }
 366
 367         /**
 368          * Returns the local Sone with the given ID.
 369          *
 370          * @param id
 371          *            The ID of the Sone to get
 372          * @return The Sone with the given ID
 373          */
 374         public Sone getLocalSone(String id) {
 375                 return getLocalSone(id, true);
 376         }
 377
 378         /**
 379          * Returns the local Sone with the given ID, optionally creating a new Sone.
 380          *
 381          * @param id
 382          *            The ID of the Sone
 383          * @param create
 384          *            {@code true} to create a new Sone if none exists,
 385          *            {@code false} to return null if none exists
 386          * @return The Sone with the given ID, or {@code null}
 387          */
 388         public Sone getLocalSone(String id, boolean create) {
 389                 synchronized (localSones) {
 390                         Sone sone = localSones.get(id);
 391                         if ((sone == null) && create) {
 392                                 sone = new Sone(id);
 393                                 localSones.put(id, sone);
 394                         }
 395                         return sone;
 396                 }
 397         }
 398
 399         /**
 400          * Returns all remote Sones.
 401          *
 402          * @return All remote Sones
 403          */
 404         public Set<Sone> getRemoteSones() {
 405                 synchronized (remoteSones) {
 406                         return new HashSet<Sone>(remoteSones.values());
 407                 }
 408         }
 409
 410         /**
 411          * Returns the remote Sone with the given ID.
 412          *
 413          * @param id
 414          *            The ID of the remote Sone to get
 415          * @return The Sone with the given ID
 416          */
 417         public Sone getRemoteSone(String id) {
 418                 return getRemoteSone(id, true);
 419         }
 420
 421         /**
 422          * Returns the remote Sone with the given ID.
 423          *
 424          * @param id
 425          *            The ID of the remote Sone to get
 426          * @param create
 427          *            {@code true} to always create a Sone, {@code false} to return
 428          *            {@code null} if no Sone with the given ID exists
 429          * @return The Sone with the given ID
 430          */
 431         public Sone getRemoteSone(String id, boolean create) {
 432                 synchronized (remoteSones) {
 433                         Sone sone = remoteSones.get(id);
 434                         if ((sone == null) && create) {
 435                                 sone = new Sone(id);
 436                                 remoteSones.put(id, sone);
 437                         }
 438                         return sone;
 439                 }
 440         }
 441
 442         /**
 443          * Returns whether the given Sone is a remote Sone.
 444          *
 445          * @param sone
 446          *            The Sone to check
 447          * @return {@code true} if the given Sone is a remote Sone, {@code false}
 448          *         otherwise
 449          */
 450         public boolean isRemoteSone(Sone sone) {
 451                 synchronized (remoteSones) {
 452                         return remoteSones.containsKey(sone.getId());
 453                 }
 454         }
 455
 456         /**
 457          * Returns whether the Sone with the given ID is a remote Sone.
 458          *
 459          * @param id
 460          *            The ID of the Sone to check
 461          * @return {@code true} if the Sone with the given ID is a remote Sone,
 462          *         {@code false} otherwise
 463          */
 464         public boolean isRemoteSone(String id) {
 465                 synchronized (remoteSones) {
 466                         return remoteSones.containsKey(id);
 467                 }
 468         }
 469
 470         /**
 471          * Returns whether the given Sone is a new Sone. After this check, the Sone
 472          * is marked as known, i.e. a second call with the same parameters will
 473          * always yield {@code false}.
 474          *
 475          * @param sone
 476          *            The sone to check for
 477          * @return {@code true} if the given Sone is new, false otherwise
 478          */
 479         public boolean isNewSone(Sone sone) {
 480                 synchronized (newSones) {
 481                         boolean isNew = !knownSones.contains(sone.getId()) && newSones.remove(sone.getId());
 482                         knownSones.add(sone.getId());
 483                         if (isNew) {
 484                                 coreListenerManager.fireMarkSoneKnown(sone);
 485                         }
 486                         return isNew;
 487                 }
 488         }
 489
 490         /**
 491          * Returns whether the given Sone has been modified.
 492          *
 493          * @param sone
 494          *            The Sone to check for modifications
 495          * @return {@code true} if a modification has been detected in the Sone,
 496          *         {@code false} otherwise
 497          */
 498         public boolean isModifiedSone(Sone sone) {
 499                 return (soneInserters.containsKey(sone)) ? soneInserters.get(sone).isModified() : false;
 500         }
 501
 502         /**
 503          * Returns the post with the given ID.
 504          *
 505          * @param postId
 506          *            The ID of the post to get
 507          * @return The post, or {@code null} if there is no such post
 508          */
 509         public Post getPost(String postId) {
 510                 return getPost(postId, true);
 511         }
 512
 513         /**
 514          * Returns the post with the given ID, optionally creating a new post.
 515          *
 516          * @param postId
 517          *            The ID of the post to get
 518          * @param create
 519          *            {@code true} it create a new post if no post with the given ID
 520          *            exists, {@code false} to return {@code null}
 521          * @return The post, or {@code null} if there is no such post
 522          */
 523         public Post getPost(String postId, boolean create) {
 524                 synchronized (posts) {
 525                         Post post = posts.get(postId);
 526                         if ((post == null) && create) {
 527                                 post = new Post(postId);
 528                                 posts.put(postId, post);
 529                         }
 530                         return post;
 531                 }
 532         }
 533
 534         /**
 535          * Returns whether the given post ID is new. After this method returns it is
 536          * marked a known post ID.
 537          *
 538          * @param postId
 539          *            The post ID
 540          * @return {@code true} if the post is considered to be new, {@code false}
 541          *         otherwise
 542          */
 543         public boolean isNewPost(String postId) {
 544                 return isNewPost(postId, true);
 545         }
 546
 547         /**
 548          * Returns whether the given post ID is new. If {@code markAsKnown} is
 549          * {@code true} then after this method returns the post ID is marked a known
 550          * post ID.
 551          *
 552          * @param postId
 553          *            The post ID
 554          * @param markAsKnown
 555          *            {@code true} to mark the post ID as known, {@code false} to
 556          *            not to mark it as known
 557          * @return {@code true} if the post is considered to be new, {@code false}
 558          *         otherwise
 559          */
 560         public boolean isNewPost(String postId, boolean markAsKnown) {
 561                 synchronized (newPosts) {
 562                         boolean isNew = !knownPosts.contains(postId) && newPosts.contains(postId);
 563                         if (markAsKnown) {
 564                                 newPosts.remove(postId);
 565                                 knownPosts.add(postId);
 566                                 if (isNew) {
 567                                         coreListenerManager.fireMarkPostKnown(getPost(postId));
 568                                 }
 569                         }
 570                         return isNew;
 571                 }
 572         }
 573
 574         /**
 575          * Returns the reply with the given ID. If there is no reply with the given
 576          * ID yet, a new one is created.
 577          *
 578          * @param replyId
 579          *            The ID of the reply to get
 580          * @return The reply
 581          */
 582         public Reply getReply(String replyId) {
 583                 return getReply(replyId, true);
 584         }
 585
 586         /**
 587          * Returns the reply with the given ID. If there is no reply with the given
 588          * ID yet, a new one is created, unless {@code create} is false in which
 589          * case {@code null} is returned.
 590          *
 591          * @param replyId
 592          *            The ID of the reply to get
 593          * @param create
 594          *            {@code true} to always return a {@link Reply}, {@code false}
 595          *            to return {@code null} if no reply can be found
 596          * @return The reply, or {@code null} if there is no such reply
 597          */
 598         public Reply getReply(String replyId, boolean create) {
 599                 synchronized (replies) {
 600                         Reply reply = replies.get(replyId);
 601                         if (create && (reply == null)) {
 602                                 reply = new Reply(replyId);
 603                                 replies.put(replyId, reply);
 604                         }
 605                         return reply;
 606                 }
 607         }
 608
 609         /**
 610          * Returns all replies for the given post, order ascending by time.
 611          *
 612          * @param post
 613          *            The post to get all replies for
 614          * @return All replies for the given post
 615          */
 616         public List<Reply> getReplies(Post post) {
 617                 Set<Sone> sones = getSones();
 618                 List<Reply> replies = new ArrayList<Reply>();
 619                 for (Sone sone : sones) {
 620                         for (Reply reply : sone.getReplies()) {
 621                                 if (reply.getPost().equals(post)) {
 622                                         replies.add(reply);
 623                                 }
 624                         }
 625                 }
 626                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 627                 return replies;
 628         }
 629
 630         /**
 631          * Returns whether the reply with the given ID is new.
 632          *
 633          * @param replyId
 634          *            The ID of the reply to check
 635          * @return {@code true} if the reply is considered to be new, {@code false}
 636          *         otherwise
 637          */
 638         public boolean isNewReply(String replyId) {
 639                 return isNewReply(replyId, true);
 640         }
 641
 642         /**
 643          * Returns whether the reply with the given ID is new.
 644          *
 645          * @param replyId
 646          *            The ID of the reply to check
 647          * @param markAsKnown
 648          *            {@code true} to mark the reply as known, {@code false} to not
 649          *            to mark it as known
 650          * @return {@code true} if the reply is considered to be new, {@code false}
 651          *         otherwise
 652          */
 653         public boolean isNewReply(String replyId, boolean markAsKnown) {
 654                 synchronized (newReplies) {
 655                         boolean isNew = !knownReplies.contains(replyId) && newReplies.contains(replyId);
 656                         if (markAsKnown) {
 657                                 newReplies.remove(replyId);
 658                                 knownReplies.add(replyId);
 659                                 if (isNew) {
 660                                         coreListenerManager.fireMarkReplyKnown(getReply(replyId));
 661                                 }
 662                         }
 663                         return isNew;
 664                 }
 665         }
 666
 667         /**
 668          * Returns all Sones that have liked the given post.
 669          *
 670          * @param post
 671          *            The post to get the liking Sones for
 672          * @return The Sones that like the given post
 673          */
 674         public Set<Sone> getLikes(Post post) {
 675                 Set<Sone> sones = new HashSet<Sone>();
 676                 for (Sone sone : getSones()) {
 677                         if (sone.getLikedPostIds().contains(post.getId())) {
 678                                 sones.add(sone);
 679                         }
 680                 }
 681                 return sones;
 682         }
 683
 684         /**
 685          * Returns all Sones that have liked the given reply.
 686          *
 687          * @param reply
 688          *            The reply to get the liking Sones for
 689          * @return The Sones that like the given reply
 690          */
 691         public Set<Sone> getLikes(Reply reply) {
 692                 Set<Sone> sones = new HashSet<Sone>();
 693                 for (Sone sone : getSones()) {
 694                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 695                                 sones.add(sone);
 696                         }
 697                 }
 698                 return sones;
 699         }
 700
 701         //
 702         // ACTIONS
 703         //
 704
 705         /**
 706          * Locks the given Sone. A locked Sone will not be inserted by
 707          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 708          * again.
 709          *
 710          * @param sone
 711          *            The sone to lock
 712          */
 713         public void lockSone(Sone sone) {
 714                 synchronized (lockedSones) {
 715                         lockedSones.add(sone);
 716                 }
 717         }
 718
 719         /**
 720          * Unlocks the given Sone.
 721          *
 722          * @see #lockSone(Sone)
 723          * @param sone
 724          *            The sone to unlock
 725          */
 726         public void unlockSone(Sone sone) {
 727                 synchronized (lockedSones) {
 728                         lockedSones.remove(sone);
 729                 }
 730         }
 731
 732         /**
 733          * Adds a local Sone from the given ID which has to be the ID of an own
 734          * identity.
 735          *
 736          * @param id
 737          *            The ID of an own identity to add a Sone for
 738          * @return The added (or already existing) Sone
 739          */
 740         public Sone addLocalSone(String id) {
 741                 synchronized (localSones) {
 742                         if (localSones.containsKey(id)) {
 743                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 744                                 return localSones.get(id);
 745                         }
 746                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 747                         if (ownIdentity == null) {
 748                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 749                                 return null;
 750                         }
 751                         return addLocalSone(ownIdentity);
 752                 }
 753         }
 754
 755         /**
 756          * Adds a local Sone from the given own identity.
 757          *
 758          * @param ownIdentity
 759          *            The own identity to create a Sone from
 760          * @return The added (or already existing) Sone
 761          */
 762         public Sone addLocalSone(OwnIdentity ownIdentity) {
 763                 if (ownIdentity == null) {
 764                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 765                         return null;
 766                 }
 767                 synchronized (localSones) {
 768                         final Sone sone;
 769                         try {
 770                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 771                         } catch (MalformedURLException mue1) {
 772                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 773                                 return null;
 774                         }
 775                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 776                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 777                         /* TODO - load posts ’n stuff */
 778                         localSones.put(ownIdentity.getId(), sone);
 779                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 780                         soneInserters.put(sone, soneInserter);
 781                         setSoneStatus(sone, SoneStatus.idle);
 782                         loadSone(sone);
 783                         if (!isSoneRescueMode()) {
 784                                 soneInserter.start();
 785                         }
 786                         new Thread(new Runnable() {
 787
 788                                 @Override
 789                                 @SuppressWarnings("synthetic-access")
 790                                 public void run() {
 791                                         if (!isSoneRescueMode()) {
 792                                                 soneDownloader.fetchSone(sone);
 793                                                 return;
 794                                         }
 795                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 796                                         coreListenerManager.fireRescuingSone(sone);
 797                                         lockSone(sone);
 798                                         long edition = sone.getLatestEdition();
 799                                         while (!stopped && (edition >= 0) && isSoneRescueMode()) {
 800                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 801                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 802                                                 --edition;
 803                                         }
 804                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 805                                         saveSone(sone);
 806                                         coreListenerManager.fireRescuedSone(sone);
 807                                         soneInserter.start();
 808                                 }
 809
 810                         }, "Sone Downloader").start();
 811                         return sone;
 812                 }
 813         }
 814
 815         /**
 816          * Creates a new Sone for the given own identity.
 817          *
 818          * @param ownIdentity
 819          *            The own identity to create a Sone for
 820          * @return The created Sone
 821          */
 822         public Sone createSone(OwnIdentity ownIdentity) {
 823                 identityManager.addContext(ownIdentity, "Sone");
 824                 Sone sone = addLocalSone(ownIdentity);
 825                 return sone;
 826         }
 827
 828         /**
 829          * Adds the Sone of the given identity.
 830          *
 831          * @param identity
 832          *            The identity whose Sone to add
 833          * @return The added or already existing Sone
 834          */
 835         public Sone addRemoteSone(Identity identity) {
 836                 if (identity == null) {
 837                         logger.log(Level.WARNING, "Given Identity is null!");
 838                         return null;
 839                 }
 840                 synchronized (remoteSones) {
 841                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 842                         boolean newSone = sone.getRequestUri() == null;
 843                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 844                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 845                         if (newSone) {
 846                                 synchronized (newSones) {
 847                                         newSone = !knownSones.contains(sone.getId());
 848                                         if (newSone) {
 849                                                 newSones.add(sone.getId());
 850                                         }
 851                                 }
 852                                 if (newSone) {
 853                                         coreListenerManager.fireNewSoneFound(sone);
 854                                 }
 855                         }
 856                         remoteSones.put(identity.getId(), sone);
 857                         soneDownloader.addSone(sone);
 858                         setSoneStatus(sone, SoneStatus.unknown);
 859                         new Thread(new Runnable() {
 860
 861                                 @Override
 862                                 @SuppressWarnings("synthetic-access")
 863                                 public void run() {
 864                                         soneDownloader.fetchSone(sone);
 865                                 }
 866
 867                         }, "Sone Downloader").start();
 868                         return sone;
 869                 }
 870         }
 871
 872         /**
 873          * Updates the stores Sone with the given Sone.
 874          *
 875          * @param sone
 876          *            The updated Sone
 877          */
 878         public void updateSone(Sone sone) {
 879                 if (hasSone(sone.getId())) {
 880                         boolean soneRescueMode = isLocalSone(sone) && isSoneRescueMode();
 881                         Sone storedSone = getSone(sone.getId());
 882                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
 883                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 884                                 return;
 885                         }
 886                         synchronized (posts) {
 887                                 if (!soneRescueMode) {
 888                                         for (Post post : storedSone.getPosts()) {
 889                                                 posts.remove(post.getId());
 890                                         }
 891                                 }
 892                                 synchronized (newPosts) {
 893                                         for (Post post : sone.getPosts()) {
 894                                                 post.setSone(getSone(post.getSone().getId()));
 895                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 896                                                         newPosts.add(post.getId());
 897                                                         coreListenerManager.fireNewPostFound(post);
 898                                                 }
 899                                                 posts.put(post.getId(), post);
 900                                         }
 901                                 }
 902                         }
 903                         synchronized (replies) {
 904                                 if (!soneRescueMode) {
 905                                         for (Reply reply : storedSone.getReplies()) {
 906                                                 replies.remove(reply.getId());
 907                                         }
 908                                 }
 909                                 synchronized (newReplies) {
 910                                         for (Reply reply : sone.getReplies()) {
 911                                                 reply.setSone(getSone(reply.getSone().getId()));
 912                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 913                                                         newReplies.add(reply.getId());
 914                                                         coreListenerManager.fireNewReplyFound(reply);
 915                                                 }
 916                                                 replies.put(reply.getId(), reply);
 917                                         }
 918                                 }
 919                         }
 920                         synchronized (storedSone) {
 921                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
 922                                         storedSone.setTime(sone.getTime());
 923                                 }
 924                                 storedSone.setClient(sone.getClient());
 925                                 storedSone.setProfile(sone.getProfile());
 926                                 if (soneRescueMode) {
 927                                         for (Post post : sone.getPosts()) {
 928                                                 storedSone.addPost(post);
 929                                         }
 930                                         for (Reply reply : sone.getReplies()) {
 931                                                 storedSone.addReply(reply);
 932                                         }
 933                                         for (String likedPostId : sone.getLikedPostIds()) {
 934                                                 storedSone.addLikedPostId(likedPostId);
 935                                         }
 936                                         for (String likedReplyId : sone.getLikedReplyIds()) {
 937                                                 storedSone.addLikedReplyId(likedReplyId);
 938                                         }
 939                                 } else {
 940                                         storedSone.setPosts(sone.getPosts());
 941                                         storedSone.setReplies(sone.getReplies());
 942                                         storedSone.setLikePostIds(sone.getLikedPostIds());
 943                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
 944                                 }
 945                                 storedSone.setLatestEdition(sone.getLatestEdition());
 946                         }
 947                 }
 948         }
 949
 950         /**
 951          * Deletes the given Sone. This will remove the Sone from the
 952          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
 953          * and remove the context from its identity.
 954          *
 955          * @param sone
 956          *            The Sone to delete
 957          */
 958         public void deleteSone(Sone sone) {
 959                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 960                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
 961                         return;
 962                 }
 963                 synchronized (localSones) {
 964                         if (!localSones.containsKey(sone.getId())) {
 965                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
 966                                 return;
 967                         }
 968                         localSones.remove(sone.getId());
 969                         soneInserters.remove(sone).stop();
 970                 }
 971                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 972                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 973                 try {
 974                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 975                 } catch (ConfigurationException ce1) {
 976                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 977                 }
 978         }
 979
 980         /**
 981          * Loads and updates the given Sone from the configuration. If any error is
 982          * encountered, loading is aborted and the given Sone is not changed.
 983          *
 984          * @param sone
 985          *            The Sone to load and update
 986          */
 987         public void loadSone(Sone sone) {
 988                 if (!isLocalSone(sone)) {
 989                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
 990                         return;
 991                 }
 992
 993                 /* load Sone. */
 994                 String sonePrefix = "Sone/" + sone.getId();
 995                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
 996                 if (soneTime == null) {
 997                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
 998                         return;
 999                 }
1000                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
1001
1002                 /* load profile. */
1003                 Profile profile = new Profile();
1004                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
1005                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
1006                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
1007                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
1008                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
1009                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
1010
1011                 /* load posts. */
1012                 Set<Post> posts = new HashSet<Post>();
1013                 while (true) {
1014                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
1015                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
1016                         if (postId == null) {
1017                                 break;
1018                         }
1019                         String postRecipientId = configuration.getStringValue(postPrefix + "/Recipient").getValue(null);
1020                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1021                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1022                         if ((postTime == 0) || (postText == null)) {
1023                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1024                                 return;
1025                         }
1026                         Post post = getPost(postId).setSone(sone).setTime(postTime).setText(postText);
1027                         if ((postRecipientId != null) && (postRecipientId.length() == 43)) {
1028                                 post.setRecipient(getSone(postRecipientId));
1029                         }
1030                         posts.add(post);
1031                 }
1032
1033                 /* load replies. */
1034                 Set<Reply> replies = new HashSet<Reply>();
1035                 while (true) {
1036                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1037                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1038                         if (replyId == null) {
1039                                 break;
1040                         }
1041                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1042                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1043                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1044                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1045                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1046                                 return;
1047                         }
1048                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1049                 }
1050
1051                 /* load post likes. */
1052                 Set<String> likedPostIds = new HashSet<String>();
1053                 while (true) {
1054                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1055                         if (likedPostId == null) {
1056                                 break;
1057                         }
1058                         likedPostIds.add(likedPostId);
1059                 }
1060
1061                 /* load reply likes. */
1062                 Set<String> likedReplyIds = new HashSet<String>();
1063                 while (true) {
1064                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1065                         if (likedReplyId == null) {
1066                                 break;
1067                         }
1068                         likedReplyIds.add(likedReplyId);
1069                 }
1070
1071                 /* load friends. */
1072                 Set<String> friends = new HashSet<String>();
1073                 while (true) {
1074                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1075                         if (friendId == null) {
1076                                 break;
1077                         }
1078                         friends.add(friendId);
1079                 }
1080
1081                 /* if we’re still here, Sone was loaded successfully. */
1082                 synchronized (sone) {
1083                         sone.setTime(soneTime);
1084                         sone.setProfile(profile);
1085                         sone.setPosts(posts);
1086                         sone.setReplies(replies);
1087                         sone.setLikePostIds(likedPostIds);
1088                         sone.setLikeReplyIds(likedReplyIds);
1089                         sone.setFriends(friends);
1090                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1091                 }
1092                 synchronized (newSones) {
1093                         for (String friend : friends) {
1094                                 knownSones.add(friend);
1095                         }
1096                 }
1097                 synchronized (newPosts) {
1098                         for (Post post : posts) {
1099                                 knownPosts.add(post.getId());
1100                         }
1101                 }
1102                 synchronized (newReplies) {
1103                         for (Reply reply : replies) {
1104                                 knownReplies.add(reply.getId());
1105                         }
1106                 }
1107         }
1108
1109         /**
1110          * Saves the given Sone. This will persist all local settings for the given
1111          * Sone, such as the friends list and similar, private options.
1112          *
1113          * @param sone
1114          *            The Sone to save
1115          */
1116         public void saveSone(Sone sone) {
1117                 if (!isLocalSone(sone)) {
1118                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1119                         return;
1120                 }
1121                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1122                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1123                         return;
1124                 }
1125
1126                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1127                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1128                 try {
1129                         /* save Sone into configuration. */
1130                         String sonePrefix = "Sone/" + sone.getId();
1131                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1132                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1133
1134                         /* save profile. */
1135                         Profile profile = sone.getProfile();
1136                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1137                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1138                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1139                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1140                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1141                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1142
1143                         /* save posts. */
1144                         int postCounter = 0;
1145                         for (Post post : sone.getPosts()) {
1146                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1147                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1148                                 if (post.getRecipient() != null) {
1149                                         configuration.getStringValue(postPrefix + "/Recipient").setValue(post.getRecipient().getId());
1150                                 }
1151                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1152                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1153                         }
1154                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1155
1156                         /* save replies. */
1157                         int replyCounter = 0;
1158                         for (Reply reply : sone.getReplies()) {
1159                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1160                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1161                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1162                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1163                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1164                         }
1165                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1166
1167                         /* save post likes. */
1168                         int postLikeCounter = 0;
1169                         for (String postId : sone.getLikedPostIds()) {
1170                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1171                         }
1172                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1173
1174                         /* save reply likes. */
1175                         int replyLikeCounter = 0;
1176                         for (String replyId : sone.getLikedReplyIds()) {
1177                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1178                         }
1179                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1180
1181                         /* save friends. */
1182                         int friendCounter = 0;
1183                         for (String friendId : sone.getFriends()) {
1184                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1185                         }
1186                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1187
1188                         logger.log(Level.INFO, "Sone %s saved.", sone);
1189                 } catch (ConfigurationException ce1) {
1190                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1191                 }
1192         }
1193
1194         /**
1195          * Creates a new post.
1196          *
1197          * @param sone
1198          *            The Sone that creates the post
1199          * @param text
1200          *            The text of the post
1201          * @return The created post
1202          */
1203         public Post createPost(Sone sone, String text) {
1204                 return createPost(sone, System.currentTimeMillis(), text);
1205         }
1206
1207         /**
1208          * Creates a new post.
1209          *
1210          * @param sone
1211          *            The Sone that creates the post
1212          * @param time
1213          *            The time of the post
1214          * @param text
1215          *            The text of the post
1216          * @return The created post
1217          */
1218         public Post createPost(Sone sone, long time, String text) {
1219                 return createPost(sone, null, time, text);
1220         }
1221
1222         /**
1223          * Creates a new post.
1224          *
1225          * @param sone
1226          *            The Sone that creates the post
1227          * @param recipient
1228          *            The recipient Sone, or {@code null} if this post does not have
1229          *            a recipient
1230          * @param text
1231          *            The text of the post
1232          * @return The created post
1233          */
1234         public Post createPost(Sone sone, Sone recipient, String text) {
1235                 return createPost(sone, recipient, System.currentTimeMillis(), text);
1236         }
1237
1238         /**
1239          * Creates a new post.
1240          *
1241          * @param sone
1242          *            The Sone that creates the post
1243          * @param recipient
1244          *            The recipient Sone, or {@code null} if this post does not have
1245          *            a recipient
1246          * @param time
1247          *            The time of the post
1248          * @param text
1249          *            The text of the post
1250          * @return The created post
1251          */
1252         public Post createPost(Sone sone, Sone recipient, long time, String text) {
1253                 if (!isLocalSone(sone)) {
1254                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1255                         return null;
1256                 }
1257                 Post post = new Post(sone, time, text);
1258                 if (recipient != null) {
1259                         post.setRecipient(recipient);
1260                 }
1261                 synchronized (posts) {
1262                         posts.put(post.getId(), post);
1263                 }
1264                 synchronized (newPosts) {
1265                         knownPosts.add(post.getId());
1266                 }
1267                 sone.addPost(post);
1268                 saveSone(sone);
1269                 return post;
1270         }
1271
1272         /**
1273          * Deletes the given post.
1274          *
1275          * @param post
1276          *            The post to delete
1277          */
1278         public void deletePost(Post post) {
1279                 if (!isLocalSone(post.getSone())) {
1280                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1281                         return;
1282                 }
1283                 post.getSone().removePost(post);
1284                 synchronized (posts) {
1285                         posts.remove(post.getId());
1286                 }
1287                 saveSone(post.getSone());
1288         }
1289
1290         /**
1291          * Marks the given post as known, if it is currently a new post (according
1292          * to {@link #isNewPost(String)}).
1293          *
1294          * @param post
1295          *            The post to mark as known
1296          */
1297         public void markPostKnown(Post post) {
1298                 synchronized (newPosts) {
1299                         if (newPosts.remove(post.getId())) {
1300                                 knownPosts.add(post.getId());
1301                                 coreListenerManager.fireMarkPostKnown(post);
1302                         }
1303                 }
1304         }
1305
1306         /**
1307          * Creates a new reply.
1308          *
1309          * @param sone
1310          *            The Sone that creates the reply
1311          * @param post
1312          *            The post that this reply refers to
1313          * @param text
1314          *            The text of the reply
1315          * @return The created reply
1316          */
1317         public Reply createReply(Sone sone, Post post, String text) {
1318                 return createReply(sone, post, System.currentTimeMillis(), text);
1319         }
1320
1321         /**
1322          * Creates a new reply.
1323          *
1324          * @param sone
1325          *            The Sone that creates the reply
1326          * @param post
1327          *            The post that this reply refers to
1328          * @param time
1329          *            The time of the reply
1330          * @param text
1331          *            The text of the reply
1332          * @return The created reply
1333          */
1334         public Reply createReply(Sone sone, Post post, long time, String text) {
1335                 if (!isLocalSone(sone)) {
1336                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1337                         return null;
1338                 }
1339                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1340                 synchronized (replies) {
1341                         replies.put(reply.getId(), reply);
1342                 }
1343                 synchronized (newReplies) {
1344                         knownReplies.add(reply.getId());
1345                 }
1346                 sone.addReply(reply);
1347                 saveSone(sone);
1348                 return reply;
1349         }
1350
1351         /**
1352          * Deletes the given reply.
1353          *
1354          * @param reply
1355          *            The reply to delete
1356          */
1357         public void deleteReply(Reply reply) {
1358                 Sone sone = reply.getSone();
1359                 if (!isLocalSone(sone)) {
1360                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1361                         return;
1362                 }
1363                 synchronized (replies) {
1364                         replies.remove(reply.getId());
1365                 }
1366                 sone.removeReply(reply);
1367                 saveSone(sone);
1368         }
1369
1370         /**
1371          * Marks the given reply as known, if it is currently a new reply (according
1372          * to {@link #isNewReply(String)}).
1373          *
1374          * @param reply
1375          *            The reply to mark as known
1376          */
1377         public void markReplyKnown(Reply reply) {
1378                 synchronized (newReplies) {
1379                         if (newReplies.remove(reply.getId())) {
1380                                 knownReplies.add(reply.getId());
1381                                 coreListenerManager.fireMarkReplyKnown(reply);
1382                         }
1383                 }
1384         }
1385
1386         /**
1387          * Starts the core.
1388          */
1389         public void start() {
1390                 loadConfiguration();
1391         }
1392
1393         /**
1394          * Stops the core.
1395          */
1396         public void stop() {
1397                 synchronized (localSones) {
1398                         for (SoneInserter soneInserter : soneInserters.values()) {
1399                                 soneInserter.stop();
1400                         }
1401                 }
1402                 saveConfiguration();
1403                 stopped = true;
1404         }
1405
1406         /**
1407          * Saves the current options.
1408          */
1409         public void saveConfiguration() {
1410                 /* store the options first. */
1411                 try {
1412                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1413                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1414                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1415                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1416
1417                         /* save known Sones. */
1418                         int soneCounter = 0;
1419                         synchronized (newSones) {
1420                                 for (String knownSoneId : knownSones) {
1421                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1422                                 }
1423                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1424                         }
1425
1426                         /* save known posts. */
1427                         int postCounter = 0;
1428                         synchronized (newPosts) {
1429                                 for (String knownPostId : knownPosts) {
1430                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1431                                 }
1432                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1433                         }
1434
1435                         /* save known replies. */
1436                         int replyCounter = 0;
1437                         synchronized (newReplies) {
1438                                 for (String knownReplyId : knownReplies) {
1439                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1440                                 }
1441                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1442                         }
1443
1444                         /* now save it. */
1445                         configuration.save();
1446
1447                 } catch (ConfigurationException ce1) {
1448                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1449                 }
1450         }
1451
1452         //
1453         // PRIVATE METHODS
1454         //
1455
1456         /**
1457          * Loads the configuration.
1458          */
1459         @SuppressWarnings("unchecked")
1460         private void loadConfiguration() {
1461                 /* create options. */
1462                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1463
1464                         @Override
1465                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1466                                 SoneInserter.setInsertionDelay(newValue);
1467                         }
1468
1469                 }));
1470                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1471                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1472                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1473
1474                 /* read options from configuration. */
1475                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1476                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1477                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1478                 options.getBooleanOption("ClearOnNextRestart").set(null);
1479                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1480                 if (clearConfiguration) {
1481                         /* stop loading the configuration. */
1482                         return;
1483                 }
1484
1485                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1486                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1487
1488                 /* load known Sones. */
1489                 int soneCounter = 0;
1490                 while (true) {
1491                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1492                         if (knownSoneId == null) {
1493                                 break;
1494                         }
1495                         synchronized (newSones) {
1496                                 knownSones.add(knownSoneId);
1497                         }
1498                 }
1499
1500                 /* load known posts. */
1501                 int postCounter = 0;
1502                 while (true) {
1503                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1504                         if (knownPostId == null) {
1505                                 break;
1506                         }
1507                         synchronized (newPosts) {
1508                                 knownPosts.add(knownPostId);
1509                         }
1510                 }
1511
1512                 /* load known replies. */
1513                 int replyCounter = 0;
1514                 while (true) {
1515                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1516                         if (knownReplyId == null) {
1517                                 break;
1518                         }
1519                         synchronized (newReplies) {
1520                                 knownReplies.add(knownReplyId);
1521                         }
1522                 }
1523
1524         }
1525
1526         /**
1527          * Generate a Sone URI from the given URI and latest edition.
1528          *
1529          * @param uriString
1530          *            The URI to derive the Sone URI from
1531          * @return The derived URI
1532          */
1533         private FreenetURI getSoneUri(String uriString) {
1534                 try {
1535                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1536                         return uri;
1537                 } catch (MalformedURLException mue1) {
1538                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1539                         return null;
1540                 }
1541         }
1542
1543         //
1544         // INTERFACE IdentityListener
1545         //
1546
1547         /**
1548          * {@inheritDoc}
1549          */
1550         @Override
1551         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1552                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1553                 if (ownIdentity.hasContext("Sone")) {
1554                         addLocalSone(ownIdentity);
1555                 }
1556         }
1557
1558         /**
1559          * {@inheritDoc}
1560          */
1561         @Override
1562         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1563                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1564         }
1565
1566         /**
1567          * {@inheritDoc}
1568          */
1569         @Override
1570         public void identityAdded(Identity identity) {
1571                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1572                 addRemoteSone(identity);
1573         }
1574
1575         /**
1576          * {@inheritDoc}
1577          */
1578         @Override
1579         public void identityUpdated(final Identity identity) {
1580                 new Thread(new Runnable() {
1581
1582                         @Override
1583                         @SuppressWarnings("synthetic-access")
1584                         public void run() {
1585                                 Sone sone = getRemoteSone(identity.getId());
1586                                 soneDownloader.fetchSone(sone);
1587                         }
1588                 }).start();
1589         }
1590
1591         /**
1592          * {@inheritDoc}
1593          */
1594         @Override
1595         public void identityRemoved(Identity identity) {
1596                 /* TODO */
1597         }
1598
1599 }