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.
 576          *
 577          * @param replyId
 578          *            The ID of the reply to get
 579          * @return The reply, or {@code null} if there is no such reply
 580          */
 581         public Reply getReply(String replyId) {
 582                 synchronized (replies) {
 583                         Reply reply = replies.get(replyId);
 584                         if (reply == null) {
 585                                 reply = new Reply(replyId);
 586                                 replies.put(replyId, reply);
 587                         }
 588                         return reply;
 589                 }
 590         }
 591
 592         /**
 593          * Returns all replies for the given post, order ascending by time.
 594          *
 595          * @param post
 596          *            The post to get all replies for
 597          * @return All replies for the given post
 598          */
 599         public List<Reply> getReplies(Post post) {
 600                 Set<Sone> sones = getSones();
 601                 List<Reply> replies = new ArrayList<Reply>();
 602                 for (Sone sone : sones) {
 603                         for (Reply reply : sone.getReplies()) {
 604                                 if (reply.getPost().equals(post)) {
 605                                         replies.add(reply);
 606                                 }
 607                         }
 608                 }
 609                 Collections.sort(replies, Reply.TIME_COMPARATOR);
 610                 return replies;
 611         }
 612
 613         /**
 614          * Returns whether the reply with the given ID is new.
 615          *
 616          * @param replyId
 617          *            The ID of the reply to check
 618          * @return {@code true} if the reply is considered to be new, {@code false}
 619          *         otherwise
 620          */
 621         public boolean isNewReply(String replyId) {
 622                 return isNewReply(replyId, true);
 623         }
 624
 625         /**
 626          * Returns whether the reply with the given ID is new.
 627          *
 628          * @param replyId
 629          *            The ID of the reply to check
 630          * @param markAsKnown
 631          *            {@code true} to mark the reply as known, {@code false} to not
 632          *            to mark it as known
 633          * @return {@code true} if the reply is considered to be new, {@code false}
 634          *         otherwise
 635          */
 636         public boolean isNewReply(String replyId, boolean markAsKnown) {
 637                 synchronized (newReplies) {
 638                         boolean isNew = !knownReplies.contains(replyId) && newReplies.contains(replyId);
 639                         if (markAsKnown) {
 640                                 newReplies.remove(replyId);
 641                                 knownReplies.add(replyId);
 642                                 if (isNew) {
 643                                         coreListenerManager.fireMarkReplyKnown(getReply(replyId));
 644                                 }
 645                         }
 646                         return isNew;
 647                 }
 648         }
 649
 650         /**
 651          * Returns all Sones that have liked the given post.
 652          *
 653          * @param post
 654          *            The post to get the liking Sones for
 655          * @return The Sones that like the given post
 656          */
 657         public Set<Sone> getLikes(Post post) {
 658                 Set<Sone> sones = new HashSet<Sone>();
 659                 for (Sone sone : getSones()) {
 660                         if (sone.getLikedPostIds().contains(post.getId())) {
 661                                 sones.add(sone);
 662                         }
 663                 }
 664                 return sones;
 665         }
 666
 667         /**
 668          * Returns all Sones that have liked the given reply.
 669          *
 670          * @param reply
 671          *            The reply to get the liking Sones for
 672          * @return The Sones that like the given reply
 673          */
 674         public Set<Sone> getLikes(Reply reply) {
 675                 Set<Sone> sones = new HashSet<Sone>();
 676                 for (Sone sone : getSones()) {
 677                         if (sone.getLikedReplyIds().contains(reply.getId())) {
 678                                 sones.add(sone);
 679                         }
 680                 }
 681                 return sones;
 682         }
 683
 684         //
 685         // ACTIONS
 686         //
 687
 688         /**
 689          * Locks the given Sone. A locked Sone will not be inserted by
 690          * {@link SoneInserter} until it is {@link #unlockSone(Sone) unlocked}
 691          * again.
 692          *
 693          * @param sone
 694          *            The sone to lock
 695          */
 696         public void lockSone(Sone sone) {
 697                 synchronized (lockedSones) {
 698                         lockedSones.add(sone);
 699                 }
 700         }
 701
 702         /**
 703          * Unlocks the given Sone.
 704          *
 705          * @see #lockSone(Sone)
 706          * @param sone
 707          *            The sone to unlock
 708          */
 709         public void unlockSone(Sone sone) {
 710                 synchronized (lockedSones) {
 711                         lockedSones.remove(sone);
 712                 }
 713         }
 714
 715         /**
 716          * Adds a local Sone from the given ID which has to be the ID of an own
 717          * identity.
 718          *
 719          * @param id
 720          *            The ID of an own identity to add a Sone for
 721          * @return The added (or already existing) Sone
 722          */
 723         public Sone addLocalSone(String id) {
 724                 synchronized (localSones) {
 725                         if (localSones.containsKey(id)) {
 726                                 logger.log(Level.FINE, "Tried to add known local Sone: %s", id);
 727                                 return localSones.get(id);
 728                         }
 729                         OwnIdentity ownIdentity = identityManager.getOwnIdentity(id);
 730                         if (ownIdentity == null) {
 731                                 logger.log(Level.INFO, "Invalid Sone ID: %s", id);
 732                                 return null;
 733                         }
 734                         return addLocalSone(ownIdentity);
 735                 }
 736         }
 737
 738         /**
 739          * Adds a local Sone from the given own identity.
 740          *
 741          * @param ownIdentity
 742          *            The own identity to create a Sone from
 743          * @return The added (or already existing) Sone
 744          */
 745         public Sone addLocalSone(OwnIdentity ownIdentity) {
 746                 if (ownIdentity == null) {
 747                         logger.log(Level.WARNING, "Given OwnIdentity is null!");
 748                         return null;
 749                 }
 750                 synchronized (localSones) {
 751                         final Sone sone;
 752                         try {
 753                                 sone = getLocalSone(ownIdentity.getId()).setIdentity(ownIdentity).setInsertUri(new FreenetURI(ownIdentity.getInsertUri())).setRequestUri(new FreenetURI(ownIdentity.getRequestUri()));
 754                         } catch (MalformedURLException mue1) {
 755                                 logger.log(Level.SEVERE, "Could not convert the Identity’s URIs to Freenet URIs: " + ownIdentity.getInsertUri() + ", " + ownIdentity.getRequestUri(), mue1);
 756                                 return null;
 757                         }
 758                         sone.setLatestEdition(Numbers.safeParseLong(ownIdentity.getProperty("Sone.LatestEdition"), (long) 0));
 759                         sone.setClient(new Client("Sone", SonePlugin.VERSION.toString()));
 760                         /* TODO - load posts ’n stuff */
 761                         localSones.put(ownIdentity.getId(), sone);
 762                         final SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 763                         soneInserters.put(sone, soneInserter);
 764                         setSoneStatus(sone, SoneStatus.idle);
 765                         loadSone(sone);
 766                         if (!isSoneRescueMode()) {
 767                                 soneInserter.start();
 768                         }
 769                         new Thread(new Runnable() {
 770
 771                                 @Override
 772                                 @SuppressWarnings("synthetic-access")
 773                                 public void run() {
 774                                         if (!isSoneRescueMode()) {
 775                                                 soneDownloader.fetchSone(sone);
 776                                                 return;
 777                                         }
 778                                         logger.log(Level.INFO, "Trying to restore Sone from Freenet…");
 779                                         coreListenerManager.fireRescuingSone(sone);
 780                                         lockSone(sone);
 781                                         long edition = sone.getLatestEdition();
 782                                         while (!stopped && (edition >= 0) && isSoneRescueMode()) {
 783                                                 logger.log(Level.FINE, "Downloading edition " + edition + "…");
 784                                                 soneDownloader.fetchSone(sone, sone.getRequestUri().setKeyType("SSK").setDocName("Sone-" + edition));
 785                                                 --edition;
 786                                         }
 787                                         logger.log(Level.INFO, "Finished restoring Sone from Freenet, starting Inserter…");
 788                                         saveSone(sone);
 789                                         coreListenerManager.fireRescuedSone(sone);
 790                                         soneInserter.start();
 791                                 }
 792
 793                         }, "Sone Downloader").start();
 794                         return sone;
 795                 }
 796         }
 797
 798         /**
 799          * Creates a new Sone for the given own identity.
 800          *
 801          * @param ownIdentity
 802          *            The own identity to create a Sone for
 803          * @return The created Sone
 804          */
 805         public Sone createSone(OwnIdentity ownIdentity) {
 806                 identityManager.addContext(ownIdentity, "Sone");
 807                 Sone sone = addLocalSone(ownIdentity);
 808                 return sone;
 809         }
 810
 811         /**
 812          * Adds the Sone of the given identity.
 813          *
 814          * @param identity
 815          *            The identity whose Sone to add
 816          * @return The added or already existing Sone
 817          */
 818         public Sone addRemoteSone(Identity identity) {
 819                 if (identity == null) {
 820                         logger.log(Level.WARNING, "Given Identity is null!");
 821                         return null;
 822                 }
 823                 synchronized (remoteSones) {
 824                         final Sone sone = getRemoteSone(identity.getId()).setIdentity(identity);
 825                         boolean newSone = sone.getRequestUri() == null;
 826                         sone.setRequestUri(getSoneUri(identity.getRequestUri()));
 827                         sone.setLatestEdition(Numbers.safeParseLong(identity.getProperty("Sone.LatestEdition"), (long) 0));
 828                         if (newSone) {
 829                                 synchronized (newSones) {
 830                                         newSone = !knownSones.contains(sone.getId());
 831                                         if (newSone) {
 832                                                 newSones.add(sone.getId());
 833                                         }
 834                                 }
 835                                 if (newSone) {
 836                                         coreListenerManager.fireNewSoneFound(sone);
 837                                 }
 838                         }
 839                         remoteSones.put(identity.getId(), sone);
 840                         soneDownloader.addSone(sone);
 841                         setSoneStatus(sone, SoneStatus.unknown);
 842                         new Thread(new Runnable() {
 843
 844                                 @Override
 845                                 @SuppressWarnings("synthetic-access")
 846                                 public void run() {
 847                                         soneDownloader.fetchSone(sone);
 848                                 }
 849
 850                         }, "Sone Downloader").start();
 851                         return sone;
 852                 }
 853         }
 854
 855         /**
 856          * Updates the stores Sone with the given Sone.
 857          *
 858          * @param sone
 859          *            The updated Sone
 860          */
 861         public void updateSone(Sone sone) {
 862                 if (hasSone(sone.getId())) {
 863                         boolean soneRescueMode = isLocalSone(sone) && isSoneRescueMode();
 864                         Sone storedSone = getSone(sone.getId());
 865                         if (!soneRescueMode && !(sone.getTime() > storedSone.getTime())) {
 866                                 logger.log(Level.FINE, "Downloaded Sone %s is not newer than stored Sone %s.", new Object[] { sone, storedSone });
 867                                 return;
 868                         }
 869                         synchronized (posts) {
 870                                 if (!soneRescueMode) {
 871                                         for (Post post : storedSone.getPosts()) {
 872                                                 posts.remove(post.getId());
 873                                         }
 874                                 }
 875                                 synchronized (newPosts) {
 876                                         for (Post post : sone.getPosts()) {
 877                                                 post.setSone(getSone(post.getSone().getId()));
 878                                                 if (!storedSone.getPosts().contains(post) && !knownPosts.contains(post.getId())) {
 879                                                         newPosts.add(post.getId());
 880                                                         coreListenerManager.fireNewPostFound(post);
 881                                                 }
 882                                                 posts.put(post.getId(), post);
 883                                         }
 884                                 }
 885                         }
 886                         synchronized (replies) {
 887                                 if (!soneRescueMode) {
 888                                         for (Reply reply : storedSone.getReplies()) {
 889                                                 replies.remove(reply.getId());
 890                                         }
 891                                 }
 892                                 synchronized (newReplies) {
 893                                         for (Reply reply : sone.getReplies()) {
 894                                                 reply.setSone(getSone(reply.getSone().getId()));
 895                                                 if (!storedSone.getReplies().contains(reply) && !knownReplies.contains(reply.getId())) {
 896                                                         newReplies.add(reply.getId());
 897                                                         coreListenerManager.fireNewReplyFound(reply);
 898                                                 }
 899                                                 replies.put(reply.getId(), reply);
 900                                         }
 901                                 }
 902                         }
 903                         synchronized (storedSone) {
 904                                 if (!soneRescueMode || (sone.getTime() > storedSone.getTime())) {
 905                                         storedSone.setTime(sone.getTime());
 906                                 }
 907                                 storedSone.setClient(sone.getClient());
 908                                 storedSone.setProfile(sone.getProfile());
 909                                 if (soneRescueMode) {
 910                                         for (Post post : sone.getPosts()) {
 911                                                 storedSone.addPost(post);
 912                                         }
 913                                         for (Reply reply : sone.getReplies()) {
 914                                                 storedSone.addReply(reply);
 915                                         }
 916                                         for (String likedPostId : sone.getLikedPostIds()) {
 917                                                 storedSone.addLikedPostId(likedPostId);
 918                                         }
 919                                         for (String likedReplyId : sone.getLikedReplyIds()) {
 920                                                 storedSone.addLikedReplyId(likedReplyId);
 921                                         }
 922                                 } else {
 923                                         storedSone.setPosts(sone.getPosts());
 924                                         storedSone.setReplies(sone.getReplies());
 925                                         storedSone.setLikePostIds(sone.getLikedPostIds());
 926                                         storedSone.setLikeReplyIds(sone.getLikedReplyIds());
 927                                 }
 928                                 storedSone.setLatestEdition(sone.getLatestEdition());
 929                         }
 930                 }
 931         }
 932
 933         /**
 934          * Deletes the given Sone. This will remove the Sone from the
 935          * {@link #getLocalSone(String) local Sones}, stops its {@link SoneInserter}
 936          * and remove the context from its identity.
 937          *
 938          * @param sone
 939          *            The Sone to delete
 940          */
 941         public void deleteSone(Sone sone) {
 942                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
 943                         logger.log(Level.WARNING, "Tried to delete Sone of non-own identity: %s", sone);
 944                         return;
 945                 }
 946                 synchronized (localSones) {
 947                         if (!localSones.containsKey(sone.getId())) {
 948                                 logger.log(Level.WARNING, "Tried to delete non-local Sone: %s", sone);
 949                                 return;
 950                         }
 951                         localSones.remove(sone.getId());
 952                         soneInserters.remove(sone).stop();
 953                 }
 954                 identityManager.removeContext((OwnIdentity) sone.getIdentity(), "Sone");
 955                 identityManager.removeProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition");
 956                 try {
 957                         configuration.getLongValue("Sone/" + sone.getId() + "/Time").setValue(null);
 958                 } catch (ConfigurationException ce1) {
 959                         logger.log(Level.WARNING, "Could not remove Sone from configuration!", ce1);
 960                 }
 961         }
 962
 963         /**
 964          * Loads and updates the given Sone from the configuration. If any error is
 965          * encountered, loading is aborted and the given Sone is not changed.
 966          *
 967          * @param sone
 968          *            The Sone to load and update
 969          */
 970         public void loadSone(Sone sone) {
 971                 if (!isLocalSone(sone)) {
 972                         logger.log(Level.FINE, "Tried to load non-local Sone: %s", sone);
 973                         return;
 974                 }
 975
 976                 /* load Sone. */
 977                 String sonePrefix = "Sone/" + sone.getId();
 978                 Long soneTime = configuration.getLongValue(sonePrefix + "/Time").getValue(null);
 979                 if (soneTime == null) {
 980                         logger.log(Level.INFO, "Could not load Sone because no Sone has been saved.");
 981                         return;
 982                 }
 983                 String lastInsertFingerprint = configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").getValue("");
 984
 985                 /* load profile. */
 986                 Profile profile = new Profile();
 987                 profile.setFirstName(configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null));
 988                 profile.setMiddleName(configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null));
 989                 profile.setLastName(configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null));
 990                 profile.setBirthDay(configuration.getIntValue(sonePrefix + "/Profile/BirthDay").getValue(null));
 991                 profile.setBirthMonth(configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").getValue(null));
 992                 profile.setBirthYear(configuration.getIntValue(sonePrefix + "/Profile/BirthYear").getValue(null));
 993
 994                 /* load posts. */
 995                 Set<Post> posts = new HashSet<Post>();
 996                 while (true) {
 997                         String postPrefix = sonePrefix + "/Posts/" + posts.size();
 998                         String postId = configuration.getStringValue(postPrefix + "/ID").getValue(null);
 999                         if (postId == null) {
1000                                 break;
1001                         }
1002                         long postTime = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
1003                         String postText = configuration.getStringValue(postPrefix + "/Text").getValue(null);
1004                         if ((postTime == 0) || (postText == null)) {
1005                                 logger.log(Level.WARNING, "Invalid post found, aborting load!");
1006                                 return;
1007                         }
1008                         posts.add(getPost(postId).setSone(sone).setTime(postTime).setText(postText));
1009                 }
1010
1011                 /* load replies. */
1012                 Set<Reply> replies = new HashSet<Reply>();
1013                 while (true) {
1014                         String replyPrefix = sonePrefix + "/Replies/" + replies.size();
1015                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
1016                         if (replyId == null) {
1017                                 break;
1018                         }
1019                         String postId = configuration.getStringValue(replyPrefix + "/Post/ID").getValue(null);
1020                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue((long) 0);
1021                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
1022                         if ((postId == null) || (replyTime == 0) || (replyText == null)) {
1023                                 logger.log(Level.WARNING, "Invalid reply found, aborting load!");
1024                                 return;
1025                         }
1026                         replies.add(getReply(replyId).setSone(sone).setPost(getPost(postId)).setTime(replyTime).setText(replyText));
1027                 }
1028
1029                 /* load post likes. */
1030                 Set<String> likedPostIds = new HashSet<String>();
1031                 while (true) {
1032                         String likedPostId = configuration.getStringValue(sonePrefix + "/Likes/Post/" + likedPostIds.size() + "/ID").getValue(null);
1033                         if (likedPostId == null) {
1034                                 break;
1035                         }
1036                         likedPostIds.add(likedPostId);
1037                 }
1038
1039                 /* load reply likes. */
1040                 Set<String> likedReplyIds = new HashSet<String>();
1041                 while (true) {
1042                         String likedReplyId = configuration.getStringValue(sonePrefix + "/Likes/Reply/" + likedReplyIds.size() + "/ID").getValue(null);
1043                         if (likedReplyId == null) {
1044                                 break;
1045                         }
1046                         likedReplyIds.add(likedReplyId);
1047                 }
1048
1049                 /* load friends. */
1050                 Set<String> friends = new HashSet<String>();
1051                 while (true) {
1052                         String friendId = configuration.getStringValue(sonePrefix + "/Friends/" + friends.size() + "/ID").getValue(null);
1053                         if (friendId == null) {
1054                                 break;
1055                         }
1056                         friends.add(friendId);
1057                 }
1058
1059                 /* if we’re still here, Sone was loaded successfully. */
1060                 synchronized (sone) {
1061                         sone.setTime(soneTime);
1062                         sone.setProfile(profile);
1063                         sone.setPosts(posts);
1064                         sone.setReplies(replies);
1065                         sone.setLikePostIds(likedPostIds);
1066                         sone.setLikeReplyIds(likedReplyIds);
1067                         sone.setFriends(friends);
1068                         soneInserters.get(sone).setLastInsertFingerprint(lastInsertFingerprint);
1069                 }
1070                 synchronized (newSones) {
1071                         for (String friend : friends) {
1072                                 knownSones.add(friend);
1073                         }
1074                 }
1075                 synchronized (newPosts) {
1076                         for (Post post : posts) {
1077                                 knownPosts.add(post.getId());
1078                         }
1079                 }
1080                 synchronized (newReplies) {
1081                         for (Reply reply : replies) {
1082                                 knownReplies.add(reply.getId());
1083                         }
1084                 }
1085         }
1086
1087         /**
1088          * Saves the given Sone. This will persist all local settings for the given
1089          * Sone, such as the friends list and similar, private options.
1090          *
1091          * @param sone
1092          *            The Sone to save
1093          */
1094         public void saveSone(Sone sone) {
1095                 if (!isLocalSone(sone)) {
1096                         logger.log(Level.FINE, "Tried to save non-local Sone: %s", sone);
1097                         return;
1098                 }
1099                 if (!(sone.getIdentity() instanceof OwnIdentity)) {
1100                         logger.log(Level.WARNING, "Local Sone without OwnIdentity found, refusing to save: %s", sone);
1101                         return;
1102                 }
1103
1104                 logger.log(Level.INFO, "Saving Sone: %s", sone);
1105                 identityManager.setProperty((OwnIdentity) sone.getIdentity(), "Sone.LatestEdition", String.valueOf(sone.getLatestEdition()));
1106                 try {
1107                         /* save Sone into configuration. */
1108                         String sonePrefix = "Sone/" + sone.getId();
1109                         configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
1110                         configuration.getStringValue(sonePrefix + "/LastInsertFingerprint").setValue(soneInserters.get(sone).getLastInsertFingerprint());
1111
1112                         /* save profile. */
1113                         Profile profile = sone.getProfile();
1114                         configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
1115                         configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
1116                         configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
1117                         configuration.getIntValue(sonePrefix + "/Profile/BirthDay").setValue(profile.getBirthDay());
1118                         configuration.getIntValue(sonePrefix + "/Profile/BirthMonth").setValue(profile.getBirthMonth());
1119                         configuration.getIntValue(sonePrefix + "/Profile/BirthYear").setValue(profile.getBirthYear());
1120
1121                         /* save posts. */
1122                         int postCounter = 0;
1123                         for (Post post : sone.getPosts()) {
1124                                 String postPrefix = sonePrefix + "/Posts/" + postCounter++;
1125                                 configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
1126                                 configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
1127                                 configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
1128                         }
1129                         configuration.getStringValue(sonePrefix + "/Posts/" + postCounter + "/ID").setValue(null);
1130
1131                         /* save replies. */
1132                         int replyCounter = 0;
1133                         for (Reply reply : sone.getReplies()) {
1134                                 String replyPrefix = sonePrefix + "/Replies/" + replyCounter++;
1135                                 configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
1136                                 configuration.getStringValue(replyPrefix + "/Post/ID").setValue(reply.getPost().getId());
1137                                 configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
1138                                 configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
1139                         }
1140                         configuration.getStringValue(sonePrefix + "/Replies/" + replyCounter + "/ID").setValue(null);
1141
1142                         /* save post likes. */
1143                         int postLikeCounter = 0;
1144                         for (String postId : sone.getLikedPostIds()) {
1145                                 configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter++ + "/ID").setValue(postId);
1146                         }
1147                         configuration.getStringValue(sonePrefix + "/Likes/Post/" + postLikeCounter + "/ID").setValue(null);
1148
1149                         /* save reply likes. */
1150                         int replyLikeCounter = 0;
1151                         for (String replyId : sone.getLikedReplyIds()) {
1152                                 configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter++ + "/ID").setValue(replyId);
1153                         }
1154                         configuration.getStringValue(sonePrefix + "/Likes/Reply/" + replyLikeCounter + "/ID").setValue(null);
1155
1156                         /* save friends. */
1157                         int friendCounter = 0;
1158                         for (String friendId : sone.getFriends()) {
1159                                 configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter++ + "/ID").setValue(friendId);
1160                         }
1161                         configuration.getStringValue(sonePrefix + "/Friends/" + friendCounter + "/ID").setValue(null);
1162
1163                         logger.log(Level.INFO, "Sone %s saved.", sone);
1164                 } catch (ConfigurationException ce1) {
1165                         logger.log(Level.WARNING, "Could not save Sone: " + sone, ce1);
1166                 }
1167         }
1168
1169         /**
1170          * Creates a new post.
1171          *
1172          * @param sone
1173          *            The Sone that creates the post
1174          * @param text
1175          *            The text of the post
1176          * @return The created post
1177          */
1178         public Post createPost(Sone sone, String text) {
1179                 return createPost(sone, System.currentTimeMillis(), text);
1180         }
1181
1182         /**
1183          * Creates a new post.
1184          *
1185          * @param sone
1186          *            The Sone that creates the post
1187          * @param time
1188          *            The time of the post
1189          * @param text
1190          *            The text of the post
1191          * @return The created post
1192          */
1193         public Post createPost(Sone sone, long time, String text) {
1194                 if (!isLocalSone(sone)) {
1195                         logger.log(Level.FINE, "Tried to create post for non-local Sone: %s", sone);
1196                         return null;
1197                 }
1198                 Post post = new Post(sone, time, text);
1199                 synchronized (posts) {
1200                         posts.put(post.getId(), post);
1201                 }
1202                 synchronized (newPosts) {
1203                         knownPosts.add(post.getId());
1204                 }
1205                 sone.addPost(post);
1206                 saveSone(sone);
1207                 return post;
1208         }
1209
1210         /**
1211          * Deletes the given post.
1212          *
1213          * @param post
1214          *            The post to delete
1215          */
1216         public void deletePost(Post post) {
1217                 if (!isLocalSone(post.getSone())) {
1218                         logger.log(Level.WARNING, "Tried to delete post of non-local Sone: %s", post.getSone());
1219                         return;
1220                 }
1221                 post.getSone().removePost(post);
1222                 synchronized (posts) {
1223                         posts.remove(post.getId());
1224                 }
1225                 saveSone(post.getSone());
1226         }
1227
1228         /**
1229          * Creates a new reply.
1230          *
1231          * @param sone
1232          *            The Sone that creates the reply
1233          * @param post
1234          *            The post that this reply refers to
1235          * @param text
1236          *            The text of the reply
1237          * @return The created reply
1238          */
1239         public Reply createReply(Sone sone, Post post, String text) {
1240                 return createReply(sone, post, System.currentTimeMillis(), text);
1241         }
1242
1243         /**
1244          * Marks the given post as known, if it is currently a new post (according
1245          * to {@link #isNewPost(String)}).
1246          *
1247          * @param post
1248          *            The post to mark as known
1249          */
1250         public void markPostKnown(Post post) {
1251                 synchronized (newPosts) {
1252                         if (newPosts.remove(post.getId())) {
1253                                 knownPosts.add(post.getId());
1254                                 coreListenerManager.fireMarkPostKnown(post);
1255                         }
1256                 }
1257         }
1258
1259         /**
1260          * Creates a new reply.
1261          *
1262          * @param sone
1263          *            The Sone that creates the reply
1264          * @param post
1265          *            The post that this reply refers to
1266          * @param time
1267          *            The time of the reply
1268          * @param text
1269          *            The text of the reply
1270          * @return The created reply
1271          */
1272         public Reply createReply(Sone sone, Post post, long time, String text) {
1273                 if (!isLocalSone(sone)) {
1274                         logger.log(Level.FINE, "Tried to create reply for non-local Sone: %s", sone);
1275                         return null;
1276                 }
1277                 Reply reply = new Reply(sone, post, System.currentTimeMillis(), text);
1278                 synchronized (replies) {
1279                         replies.put(reply.getId(), reply);
1280                 }
1281                 synchronized (newReplies) {
1282                         knownReplies.add(reply.getId());
1283                 }
1284                 sone.addReply(reply);
1285                 saveSone(sone);
1286                 return reply;
1287         }
1288
1289         /**
1290          * Deletes the given reply.
1291          *
1292          * @param reply
1293          *            The reply to delete
1294          */
1295         public void deleteReply(Reply reply) {
1296                 Sone sone = reply.getSone();
1297                 if (!isLocalSone(sone)) {
1298                         logger.log(Level.FINE, "Tried to delete non-local reply: %s", reply);
1299                         return;
1300                 }
1301                 synchronized (replies) {
1302                         replies.remove(reply.getId());
1303                 }
1304                 sone.removeReply(reply);
1305                 saveSone(sone);
1306         }
1307
1308         /**
1309          * Marks the given reply as known, if it is currently a new reply (according
1310          * to {@link #isNewReply(String)}).
1311          *
1312          * @param reply
1313          *            The reply to mark as known
1314          */
1315         public void markReplyKnown(Reply reply) {
1316                 synchronized (newReplies) {
1317                         if (newReplies.remove(reply.getId())) {
1318                                 knownReplies.add(reply.getId());
1319                                 coreListenerManager.fireMarkReplyKnown(reply);
1320                         }
1321                 }
1322         }
1323
1324         /**
1325          * Starts the core.
1326          */
1327         public void start() {
1328                 loadConfiguration();
1329         }
1330
1331         /**
1332          * Stops the core.
1333          */
1334         public void stop() {
1335                 synchronized (localSones) {
1336                         for (SoneInserter soneInserter : soneInserters.values()) {
1337                                 soneInserter.stop();
1338                         }
1339                 }
1340                 saveConfiguration();
1341                 stopped = true;
1342         }
1343
1344         /**
1345          * Saves the current options.
1346          */
1347         public void saveConfiguration() {
1348                 /* store the options first. */
1349                 try {
1350                         configuration.getIntValue("Option/InsertionDelay").setValue(options.getIntegerOption("InsertionDelay").getReal());
1351                         configuration.getBooleanValue("Option/SoneRescueMode").setValue(options.getBooleanOption("SoneRescueMode").getReal());
1352                         configuration.getBooleanValue("Option/ClearOnNextRestart").setValue(options.getBooleanOption("ClearOnNextRestart").getReal());
1353                         configuration.getBooleanValue("Option/ReallyClearOnNextRestart").setValue(options.getBooleanOption("ReallyClearOnNextRestart").getReal());
1354
1355                         /* save known Sones. */
1356                         int soneCounter = 0;
1357                         synchronized (newSones) {
1358                                 for (String knownSoneId : knownSones) {
1359                                         configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").setValue(knownSoneId);
1360                                 }
1361                                 configuration.getStringValue("KnownSone/" + soneCounter + "/ID").setValue(null);
1362                         }
1363
1364                         /* save known posts. */
1365                         int postCounter = 0;
1366                         synchronized (newPosts) {
1367                                 for (String knownPostId : knownPosts) {
1368                                         configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId);
1369                                 }
1370                                 configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null);
1371                         }
1372
1373                         /* save known replies. */
1374                         int replyCounter = 0;
1375                         synchronized (newReplies) {
1376                                 for (String knownReplyId : knownReplies) {
1377                                         configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId);
1378                                 }
1379                                 configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null);
1380                         }
1381
1382                         /* now save it. */
1383                         configuration.save();
1384
1385                 } catch (ConfigurationException ce1) {
1386                         logger.log(Level.SEVERE, "Could not store configuration!", ce1);
1387                 }
1388         }
1389
1390         //
1391         // PRIVATE METHODS
1392         //
1393
1394         /**
1395          * Loads the configuration.
1396          */
1397         @SuppressWarnings("unchecked")
1398         private void loadConfiguration() {
1399                 /* create options. */
1400                 options.addIntegerOption("InsertionDelay", new DefaultOption<Integer>(60, new OptionWatcher<Integer>() {
1401
1402                         @Override
1403                         public void optionChanged(Option<Integer> option, Integer oldValue, Integer newValue) {
1404                                 SoneInserter.setInsertionDelay(newValue);
1405                         }
1406
1407                 }));
1408                 options.addBooleanOption("SoneRescueMode", new DefaultOption<Boolean>(false));
1409                 options.addBooleanOption("ClearOnNextRestart", new DefaultOption<Boolean>(false));
1410                 options.addBooleanOption("ReallyClearOnNextRestart", new DefaultOption<Boolean>(false));
1411
1412                 /* read options from configuration. */
1413                 options.getBooleanOption("ClearOnNextRestart").set(configuration.getBooleanValue("Option/ClearOnNextRestart").getValue(null));
1414                 options.getBooleanOption("ReallyClearOnNextRestart").set(configuration.getBooleanValue("Option/ReallyClearOnNextRestart").getValue(null));
1415                 boolean clearConfiguration = options.getBooleanOption("ClearOnNextRestart").get() && options.getBooleanOption("ReallyClearOnNextRestart").get();
1416                 options.getBooleanOption("ClearOnNextRestart").set(null);
1417                 options.getBooleanOption("ReallyClearOnNextRestart").set(null);
1418                 if (clearConfiguration) {
1419                         /* stop loading the configuration. */
1420                         return;
1421                 }
1422
1423                 options.getIntegerOption("InsertionDelay").set(configuration.getIntValue("Option/InsertionDelay").getValue(null));
1424                 options.getBooleanOption("SoneRescueMode").set(configuration.getBooleanValue("Option/SoneRescueMode").getValue(null));
1425
1426                 /* load known Sones. */
1427                 int soneCounter = 0;
1428                 while (true) {
1429                         String knownSoneId = configuration.getStringValue("KnownSone/" + soneCounter++ + "/ID").getValue(null);
1430                         if (knownSoneId == null) {
1431                                 break;
1432                         }
1433                         synchronized (newSones) {
1434                                 knownSones.add(knownSoneId);
1435                         }
1436                 }
1437
1438                 /* load known posts. */
1439                 int postCounter = 0;
1440                 while (true) {
1441                         String knownPostId = configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").getValue(null);
1442                         if (knownPostId == null) {
1443                                 break;
1444                         }
1445                         synchronized (newPosts) {
1446                                 knownPosts.add(knownPostId);
1447                         }
1448                 }
1449
1450                 /* load known replies. */
1451                 int replyCounter = 0;
1452                 while (true) {
1453                         String knownReplyId = configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").getValue(null);
1454                         if (knownReplyId == null) {
1455                                 break;
1456                         }
1457                         synchronized (newReplies) {
1458                                 knownReplies.add(knownReplyId);
1459                         }
1460                 }
1461
1462         }
1463
1464         /**
1465          * Generate a Sone URI from the given URI and latest edition.
1466          *
1467          * @param uriString
1468          *            The URI to derive the Sone URI from
1469          * @return The derived URI
1470          */
1471         private FreenetURI getSoneUri(String uriString) {
1472                 try {
1473                         FreenetURI uri = new FreenetURI(uriString).setDocName("Sone").setMetaString(new String[0]);
1474                         return uri;
1475                 } catch (MalformedURLException mue1) {
1476                         logger.log(Level.WARNING, "Could not create Sone URI from URI: " + uriString, mue1);
1477                         return null;
1478                 }
1479         }
1480
1481         //
1482         // INTERFACE IdentityListener
1483         //
1484
1485         /**
1486          * {@inheritDoc}
1487          */
1488         @Override
1489         public void ownIdentityAdded(OwnIdentity ownIdentity) {
1490                 logger.log(Level.FINEST, "Adding OwnIdentity: " + ownIdentity);
1491                 if (ownIdentity.hasContext("Sone")) {
1492                         addLocalSone(ownIdentity);
1493                 }
1494         }
1495
1496         /**
1497          * {@inheritDoc}
1498          */
1499         @Override
1500         public void ownIdentityRemoved(OwnIdentity ownIdentity) {
1501                 logger.log(Level.FINEST, "Removing OwnIdentity: " + ownIdentity);
1502         }
1503
1504         /**
1505          * {@inheritDoc}
1506          */
1507         @Override
1508         public void identityAdded(Identity identity) {
1509                 logger.log(Level.FINEST, "Adding Identity: " + identity);
1510                 addRemoteSone(identity);
1511         }
1512
1513         /**
1514          * {@inheritDoc}
1515          */
1516         @Override
1517         public void identityUpdated(final Identity identity) {
1518                 new Thread(new Runnable() {
1519
1520                         @Override
1521                         @SuppressWarnings("synthetic-access")
1522                         public void run() {
1523                                 Sone sone = getRemoteSone(identity.getId());
1524                                 soneDownloader.fetchSone(sone);
1525                         }
1526                 }).start();
1527         }
1528
1529         /**
1530          * {@inheritDoc}
1531          */
1532         @Override
1533         public void identityRemoved(Identity identity) {
1534                 /* TODO */
1535         }
1536
1537 }