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

   1 /*
   2  * FreenetSone - 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.Collection;
  23 import java.util.Collections;
  24 import java.util.Comparator;
  25 import java.util.HashMap;
  26 import java.util.HashSet;
  27 import java.util.List;
  28 import java.util.Map;
  29 import java.util.Set;
  30 import java.util.UUID;
  31 import java.util.logging.Level;
  32 import java.util.logging.Logger;
  33
  34 import net.pterodactylus.sone.core.SoneException.Type;
  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.util.config.Configuration;
  40 import net.pterodactylus.util.config.ConfigurationException;
  41 import net.pterodactylus.util.filter.Filter;
  42 import net.pterodactylus.util.filter.Filters;
  43 import net.pterodactylus.util.logging.Logging;
  44 import net.pterodactylus.util.service.AbstractService;
  45 import freenet.client.FetchResult;
  46 import freenet.keys.FreenetURI;
  47
  48 /**
  49  * The Sone core.
  50  *
  51  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  52  */
  53 public class Core extends AbstractService {
  54
  55         /**
  56          * Enumeration for the possible states of a {@link Sone}.
  57          *
  58          * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  59          */
  60         public enum SoneStatus {
  61
  62                 /** The Sone is unknown, i.e. not yet downloaded. */
  63                 unknown,
  64
  65                 /** The Sone is idle, i.e. not being downloaded or inserted. */
  66                 idle,
  67
  68                 /** The Sone is currently being inserted. */
  69                 inserting,
  70
  71                 /** The Sone is currently being downloaded. */
  72                 downloading,
  73         }
  74
  75         /** The logger. */
  76         private static final Logger logger = Logging.getLogger(Core.class);
  77
  78         /** The configuration. */
  79         private Configuration configuration;
  80
  81         /** Interface to freenet. */
  82         private FreenetInterface freenetInterface;
  83
  84         /** The Sone downloader. */
  85         private SoneDownloader soneDownloader;
  86
  87         /** The local Sones. */
  88         private final Set<Sone> localSones = new HashSet<Sone>();
  89
  90         /** Sone inserters. */
  91         private final Map<Sone, SoneInserter> soneInserters = new HashMap<Sone, SoneInserter>();
  92
  93         /** The Sones’ statuses. */
  94         private final Map<Sone, SoneStatus> soneStatuses = Collections.synchronizedMap(new HashMap<Sone, SoneStatus>());
  95
  96         /* various caches follow here. */
  97
  98         /** Cache for all known Sones. */
  99         private final Map<String, Sone> soneCache = new HashMap<String, Sone>();
 100
 101         /** Cache for all known posts. */
 102         private final Map<String, Post> postCache = new HashMap<String, Post>();
 103
 104         /** Cache for all known replies. */
 105         private final Map<String, Reply> replyCache = new HashMap<String, Reply>();
 106
 107         /**
 108          * Creates a new core.
 109          */
 110         public Core() {
 111                 super("Sone Core", false);
 112         }
 113
 114         //
 115         // ACCESSORS
 116         //
 117
 118         /**
 119          * Sets the configuration of the core.
 120          *
 121          * @param configuration
 122          *            The configuration of the core
 123          * @return This core (for method chaining)
 124          */
 125         public Core configuration(Configuration configuration) {
 126                 this.configuration = configuration;
 127                 return this;
 128         }
 129
 130         /**
 131          * Sets the Freenet interface to use.
 132          *
 133          * @param freenetInterface
 134          *            The Freenet interface to use
 135          * @return This core (for method chaining)
 136          */
 137         public Core freenetInterface(FreenetInterface freenetInterface) {
 138                 this.freenetInterface = freenetInterface;
 139                 soneDownloader = new SoneDownloader(this, freenetInterface);
 140                 soneDownloader.start();
 141                 return this;
 142         }
 143
 144         /**
 145          * Returns the local Sones.
 146          *
 147          * @return The local Sones
 148          */
 149         public Set<Sone> getSones() {
 150                 return Collections.unmodifiableSet(localSones);
 151         }
 152
 153         /**
 154          * Returns the Sone with the given ID, or an empty Sone that has been
 155          * initialized with the given ID.
 156          *
 157          * @param soneId
 158          *            The ID of the Sone
 159          * @return The Sone
 160          */
 161         public Sone getSone(String soneId) {
 162                 if (!soneCache.containsKey(soneId)) {
 163                         Sone sone = new Sone(soneId);
 164                         soneCache.put(soneId, sone);
 165                         setSoneStatus(sone, SoneStatus.unknown);
 166                 }
 167                 return soneCache.get(soneId);
 168         }
 169
 170         /**
 171          * Returns all known sones.
 172          *
 173          * @return All known sones
 174          */
 175         public Collection<Sone> getKnownSones() {
 176                 return soneCache.values();
 177         }
 178
 179         /**
 180          * Gets all known Sones that are not local Sones.
 181          *
 182          * @return All remote Sones
 183          */
 184         public Collection<Sone> getRemoteSones() {
 185                 return Filters.filteredCollection(getKnownSones(), new Filter<Sone>() {
 186
 187                         @Override
 188                         @SuppressWarnings("synthetic-access")
 189                         public boolean filterObject(Sone object) {
 190                                 return !localSones.contains(object);
 191                         }
 192                 });
 193         }
 194
 195         /**
 196          * Returns the status of the given Sone.
 197          *
 198          * @param sone
 199          *            The Sone to get the status for
 200          * @return The status of the Sone
 201          */
 202         public SoneStatus getSoneStatus(Sone sone) {
 203                 return soneStatuses.get(sone);
 204         }
 205
 206         /**
 207          * Sets the status of the Sone.
 208          *
 209          * @param sone
 210          *            The Sone to set the status for
 211          * @param soneStatus
 212          *            The status of the Sone
 213          */
 214         public void setSoneStatus(Sone sone, SoneStatus soneStatus) {
 215                 soneStatuses.put(sone, soneStatus);
 216         }
 217
 218         /**
 219          * Creates a new post and adds it to the given Sone.
 220          *
 221          * @param sone
 222          *            The sone that creates the post
 223          * @param text
 224          *            The text of the post
 225          * @return The created post
 226          */
 227         public Post createPost(Sone sone, String text) {
 228                 return createPost(sone, System.currentTimeMillis(), text);
 229         }
 230
 231         /**
 232          * Creates a new post and adds it to the given Sone.
 233          *
 234          * @param sone
 235          *            The Sone that creates the post
 236          * @param time
 237          *            The time of the post
 238          * @param text
 239          *            The text of the post
 240          * @return The created post
 241          */
 242         public Post createPost(Sone sone, long time, String text) {
 243                 Post post = getPost(UUID.randomUUID().toString()).setSone(sone).setTime(time).setText(text);
 244                 sone.addPost(post);
 245                 return post;
 246         }
 247
 248         /**
 249          * Creates a reply.
 250          *
 251          * @param sone
 252          *            The Sone that posts the reply
 253          * @param post
 254          *            The post the reply refers to
 255          * @param text
 256          *            The text of the reply
 257          * @return The created reply
 258          */
 259         public Reply createReply(Sone sone, Post post, String text) {
 260                 return createReply(sone, post, System.currentTimeMillis(), text);
 261         }
 262
 263         /**
 264          * Creates a reply.
 265          *
 266          * @param sone
 267          *            The Sone that posts the reply
 268          * @param post
 269          *            The post the reply refers to
 270          * @param time
 271          *            The time of the post
 272          * @param text
 273          *            The text of the reply
 274          * @return The created reply
 275          */
 276         public Reply createReply(Sone sone, Post post, long time, String text) {
 277                 Reply reply = getReply(UUID.randomUUID().toString()).setSone(sone).setPost(post).setTime(time).setText(text);
 278                 sone.addReply(reply);
 279                 return reply;
 280         }
 281
 282         //
 283         // ACTIONS
 284         //
 285
 286         /**
 287          * Adds a Sone to watch for updates. The Sone needs to be completely
 288          * initialized.
 289          *
 290          * @param sone
 291          *            The Sone to watch for updates
 292          */
 293         public void addSone(Sone sone) {
 294                 soneCache.put(sone.getId(), sone);
 295                 if (!localSones.contains(sone)) {
 296                         soneDownloader.addSone(sone);
 297                 }
 298         }
 299
 300         /**
 301          * Adds the given Sone.
 302          *
 303          * @param sone
 304          *            The Sone to add
 305          */
 306         public void addLocalSone(Sone sone) {
 307                 if (localSones.add(sone)) {
 308                         setSoneStatus(sone, SoneStatus.idle);
 309                         SoneInserter soneInserter = new SoneInserter(this, freenetInterface, sone);
 310                         soneInserter.start();
 311                         soneInserters.put(sone, soneInserter);
 312                 }
 313         }
 314
 315         /**
 316          * Creates a new Sone at a random location.
 317          *
 318          * @param name
 319          *            The name of the Sone
 320          * @return The created Sone
 321          * @throws SoneException
 322          *             if a Sone error occurs
 323          */
 324         public Sone createSone(String name) throws SoneException {
 325                 return createSone(name, "Sone-" + name, null, null);
 326         }
 327
 328         /**
 329          * Creates a new Sone at the given location. If one of {@code requestUri} or
 330          * {@code insertUrI} is {@code null}, the Sone is created at a random
 331          * location.
 332          *
 333          * @param name
 334          *            The name of the Sone
 335          * @param documentName
 336          *            The document name in the SSK
 337          * @param requestUri
 338          *            The request URI of the Sone, or {@link NullPointerException}
 339          *            to create a Sone at a random location
 340          * @param insertUri
 341          *            The insert URI of the Sone, or {@code null} to create a Sone
 342          *            at a random location
 343          * @return The created Sone
 344          * @throws SoneException
 345          *             if a Sone error occurs
 346          */
 347         public Sone createSone(String name, String documentName, String requestUri, String insertUri) throws SoneException {
 348                 if ((name == null) || (name.trim().length() == 0)) {
 349                         throw new SoneException(Type.INVALID_SONE_NAME);
 350                 }
 351                 String finalRequestUri;
 352                 String finalInsertUri;
 353                 if ((requestUri == null) || (insertUri == null)) {
 354                         String[] keyPair = freenetInterface.generateKeyPair();
 355                         finalRequestUri = keyPair[0];
 356                         finalInsertUri = keyPair[1];
 357                 } else {
 358                         finalRequestUri = requestUri;
 359                         finalInsertUri = insertUri;
 360                 }
 361                 Sone sone;
 362                 try {
 363                         logger.log(Level.FINEST, "Creating new Sone “%s” at %s (%s)…", new Object[] { name, finalRequestUri, finalInsertUri });
 364                         sone = getSone(UUID.randomUUID().toString()).setName(name).setRequestUri(new FreenetURI(finalRequestUri).setKeyType("USK").setDocName(documentName)).setInsertUri(new FreenetURI(finalInsertUri).setKeyType("USK").setDocName(documentName));
 365                         sone.setProfile(new Profile());
 366                         /* set modification counter to 1 so it is inserted immediately. */
 367                         sone.setModificationCounter(1);
 368                         addLocalSone(sone);
 369                 } catch (MalformedURLException mue1) {
 370                         throw new SoneException(Type.INVALID_URI);
 371                 }
 372                 return sone;
 373         }
 374
 375         /**
 376          * Loads the Sone from the given request URI. The fetching of the data is
 377          * performed in a new thread so this method returns immediately.
 378          *
 379          * @param requestUri
 380          *            The request URI to load the Sone from
 381          */
 382         public void loadSone(final String requestUri) {
 383                 loadSone(requestUri, null);
 384         }
 385
 386         /**
 387          * Loads the Sone from the given request URI. The fetching of the data is
 388          * performed in a new thread so this method returns immediately. If
 389          * {@code insertUri} is not {@code null} the loaded Sone is converted into a
 390          * local Sone and available using as any other local Sone.
 391          *
 392          * @param requestUri
 393          *            The request URI to load the Sone from
 394          * @param insertUri
 395          *            The insert URI of the Sone
 396          */
 397         public void loadSone(final String requestUri, final String insertUri) {
 398                 new Thread(new Runnable() {
 399
 400                         @Override
 401                         @SuppressWarnings("synthetic-access")
 402                         public void run() {
 403                                 try {
 404                                         FreenetURI realRequestUri = new FreenetURI(requestUri).setMetaString(new String[] { "sone.xml" });
 405                                         FetchResult fetchResult = freenetInterface.fetchUri(realRequestUri);
 406                                         if (fetchResult == null) {
 407                                                 return;
 408                                         }
 409                                         Sone parsedSone = soneDownloader.parseSone(null, fetchResult, realRequestUri);
 410                                         if (parsedSone != null) {
 411                                                 if (insertUri != null) {
 412                                                         parsedSone.setInsertUri(new FreenetURI(insertUri));
 413                                                         addLocalSone(parsedSone);
 414                                                 } else {
 415                                                         addSone(parsedSone);
 416                                                 }
 417                                         }
 418                                 } catch (MalformedURLException mue1) {
 419                                         logger.log(Level.INFO, "Could not create URI from “" + requestUri + "”.", mue1);
 420                                 }
 421                         }
 422                 }, "Sone Downloader").start();
 423         }
 424
 425         /**
 426          * Loads and updates the given Sone.
 427          *
 428          * @param sone
 429          *            The Sone to load
 430          */
 431         public void loadSone(final Sone sone) {
 432                 new Thread(new Runnable() {
 433
 434                         @Override
 435                         @SuppressWarnings("synthetic-access")
 436                         public void run() {
 437                                 FreenetURI realRequestUri = sone.getRequestUri().setMetaString(new String[] { "sone.xml" });
 438                                 setSoneStatus(sone, SoneStatus.downloading);
 439                                 try {
 440                                         FetchResult fetchResult = freenetInterface.fetchUri(realRequestUri);
 441                                         if (fetchResult == null) {
 442                                                 /* TODO - mark Sone as bad. */
 443                                                 return;
 444                                         }
 445                                         Sone parsedSone = soneDownloader.parseSone(sone, fetchResult, realRequestUri);
 446                                         if (parsedSone != null) {
 447                                                 addSone(parsedSone);
 448                                         }
 449                                 } finally {
 450                                         setSoneStatus(sone, (sone.getTime() == 0) ? SoneStatus.unknown : SoneStatus.idle);
 451                                 }
 452                         }
 453                 }, "Sone Downloader").start();
 454         }
 455
 456         /**
 457          * Deletes the given Sone from this plugin instance.
 458          *
 459          * @param sone
 460          *            The sone to delete
 461          */
 462         public void deleteSone(Sone sone) {
 463                 SoneInserter soneInserter = soneInserters.remove(sone);
 464                 soneInserter.stop();
 465                 localSones.remove(sone);
 466         }
 467
 468         /**
 469          * Returns the post with the given ID. If no post exists yet with the given
 470          * ID, a new post is returned.
 471          *
 472          * @param postId
 473          *            The ID of the post
 474          * @return The post
 475          */
 476         public Post getPost(String postId) {
 477                 if (!postCache.containsKey(postId)) {
 478                         postCache.put(postId, new Post(postId));
 479                 }
 480                 return postCache.get(postId);
 481         }
 482
 483         /**
 484          * Returns the reply with the given ID. If no reply exists yet with the
 485          * given ID, a new reply is returned.
 486          *
 487          * @param replyId
 488          *            The ID of the reply
 489          * @return The reply
 490          */
 491         public Reply getReply(String replyId) {
 492                 if (!replyCache.containsKey(replyId)) {
 493                         replyCache.put(replyId, new Reply(replyId));
 494                 }
 495                 return replyCache.get(replyId);
 496         }
 497
 498         /**
 499          * Gets all replies to the given post, sorted by date, oldest first.
 500          *
 501          * @param post
 502          *            The post the replies refer to
 503          * @return The sorted list of replies for the post
 504          */
 505         public List<Reply> getReplies(Post post) {
 506                 List<Reply> replies = new ArrayList<Reply>();
 507                 for (Reply reply : replyCache.values()) {
 508                         if (reply.getPost().equals(post)) {
 509                                 replies.add(reply);
 510                         }
 511                 }
 512                 Collections.sort(replies, new Comparator<Reply>() {
 513
 514                         /**
 515                          * {@inheritDoc}
 516                          */
 517                         @Override
 518                         public int compare(Reply leftReply, Reply rightReply) {
 519                                 return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, leftReply.getTime() - rightReply.getTime()));
 520                         }
 521                 });
 522                 return replies;
 523         }
 524
 525         /**
 526          * Gets all Sones that like the given post.
 527          *
 528          * @param post
 529          *            The post to check for
 530          * @return All Sones that like the post
 531          */
 532         public Set<Sone> getLikes(final Post post) {
 533                 return Filters.filteredSet(getSones(), new Filter<Sone>() {
 534
 535                         @Override
 536                         public boolean filterObject(Sone sone) {
 537                                 return sone.isLikedPostId(post.getId());
 538                         }
 539                 });
 540         }
 541
 542         /**
 543          * Deletes the given reply. It is removed from its Sone and from the reply
 544          * cache.
 545          *
 546          * @param reply
 547          *            The reply to remove
 548          */
 549         public void deleteReply(Reply reply) {
 550                 reply.getSone().removeReply(reply);
 551                 replyCache.remove(reply.getId());
 552         }
 553
 554         //
 555         // SERVICE METHODS
 556         //
 557
 558         /**
 559          * {@inheritDoc}
 560          */
 561         @Override
 562         protected void serviceStart() {
 563                 loadConfiguration();
 564         }
 565
 566         /**
 567          * {@inheritDoc}
 568          */
 569         @Override
 570         protected void serviceStop() {
 571                 soneDownloader.stop();
 572                 /* stop all Sone inserters. */
 573                 for (SoneInserter soneInserter : soneInserters.values()) {
 574                         soneInserter.stop();
 575                 }
 576                 saveConfiguration();
 577         }
 578
 579         //
 580         // PRIVATE METHODS
 581         //
 582
 583         /**
 584          * Loads the configuration.
 585          */
 586         private void loadConfiguration() {
 587                 logger.entering(Core.class.getName(), "loadConfiguration()");
 588
 589                 /* parse local Sones. */
 590                 logger.log(Level.INFO, "Loading Sones…");
 591                 int soneId = 0;
 592                 do {
 593                         String sonePrefix = "Sone/Sone." + soneId++;
 594                         String id = configuration.getStringValue(sonePrefix + "/ID").getValue(null);
 595                         if (id == null) {
 596                                 break;
 597                         }
 598                         String name = configuration.getStringValue(sonePrefix + "/Name").getValue(null);
 599                         long time = configuration.getLongValue(sonePrefix + "/Time").getValue((long) 0);
 600                         String insertUri = configuration.getStringValue(sonePrefix + "/InsertURI").getValue(null);
 601                         String requestUri = configuration.getStringValue(sonePrefix + "/RequestURI").getValue(null);
 602                         long modificationCounter = configuration.getLongValue(sonePrefix + "/ModificationCounter").getValue((long) 0);
 603                         String firstName = configuration.getStringValue(sonePrefix + "/Profile/FirstName").getValue(null);
 604                         String middleName = configuration.getStringValue(sonePrefix + "/Profile/MiddleName").getValue(null);
 605                         String lastName = configuration.getStringValue(sonePrefix + "/Profile/LastName").getValue(null);
 606                         try {
 607                                 Profile profile = new Profile();
 608                                 profile.setFirstName(firstName);
 609                                 profile.setMiddleName(middleName);
 610                                 profile.setLastName(lastName);
 611                                 Sone sone = getSone(id).setName(name).setTime(time).setRequestUri(new FreenetURI(requestUri)).setInsertUri(new FreenetURI(insertUri));
 612                                 sone.setProfile(profile);
 613                                 int postId = 0;
 614                                 do {
 615                                         String postPrefix = sonePrefix + "/Post." + postId++;
 616                                         id = configuration.getStringValue(postPrefix + "/ID").getValue(null);
 617                                         if (id == null) {
 618                                                 break;
 619                                         }
 620                                         time = configuration.getLongValue(postPrefix + "/Time").getValue((long) 0);
 621                                         String text = configuration.getStringValue(postPrefix + "/Text").getValue(null);
 622                                         Post post = getPost(id).setSone(sone).setTime(time).setText(text);
 623                                         sone.addPost(post);
 624                                 } while (true);
 625                                 int replyCounter = 0;
 626                                 do {
 627                                         String replyPrefix = sonePrefix + "/Reply." + replyCounter++;
 628                                         String replyId = configuration.getStringValue(replyPrefix + "/ID").getValue(null);
 629                                         if (replyId == null) {
 630                                                 break;
 631                                         }
 632                                         Post replyPost = getPost(configuration.getStringValue(replyPrefix + "/Post").getValue(null));
 633                                         long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue(null);
 634                                         String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
 635                                         Reply reply = getReply(replyId).setSone(sone).setPost(replyPost).setTime(replyTime).setText(replyText);
 636                                         sone.addReply(reply);
 637                                 } while (true);
 638
 639                                 /* load friends. */
 640                                 int friendCounter = 0;
 641                                 while (true) {
 642                                         String friendPrefix = sonePrefix + "/Friend." + friendCounter++;
 643                                         String friendId = configuration.getStringValue(friendPrefix + "/ID").getValue(null);
 644                                         if (friendId == null) {
 645                                                 break;
 646                                         }
 647                                         Sone friendSone = getSone(friendId);
 648                                         String friendKey = configuration.getStringValue(friendPrefix + "/Key").getValue(null);
 649                                         String friendName = configuration.getStringValue(friendPrefix + "/Name").getValue(null);
 650                                         friendSone.setRequestUri(new FreenetURI(friendKey)).setName(friendName);
 651                                         sone.addFriend(friendSone);
 652                                 }
 653
 654                                 /* load blocked Sone IDs. */
 655                                 int blockedSoneCounter = 0;
 656                                 while (true) {
 657                                         String blockedSonePrefix = sonePrefix + "/BlockedSone." + blockedSoneCounter++;
 658                                         String blockedSoneId = configuration.getStringValue(blockedSonePrefix + "/ID").getValue(null);
 659                                         if (blockedSoneId == null) {
 660                                                 break;
 661                                         }
 662                                         sone.addBlockedSoneId(blockedSoneId);
 663                                 }
 664
 665                                 /* load liked post IDs. */
 666                                 int likedPostIdCounter = 0;
 667                                 while (true) {
 668                                         String likedPostIdPrefix = sonePrefix + "/LikedPostId." + likedPostIdCounter++;
 669                                         String likedPostId = configuration.getStringValue(likedPostIdPrefix + "/ID").getValue(null);
 670                                         if (likedPostId == null) {
 671                                                 break;
 672                                         }
 673                                         sone.addLikedPostId(likedPostId);
 674                                 }
 675
 676                                 sone.setModificationCounter(modificationCounter);
 677                                 addLocalSone(sone);
 678                         } catch (MalformedURLException mue1) {
 679                                 logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + requestUri + "”) and insertUri (“" + insertUri + "”)!", mue1);
 680                         }
 681                 } while (true);
 682                 logger.log(Level.INFO, "Loaded %d Sones.", getSones().size());
 683
 684                 /* load all known Sones. */
 685                 int knownSonesCounter = 0;
 686                 while (true) {
 687                         String knownSonePrefix = "KnownSone." + knownSonesCounter++;
 688                         String knownSoneId = configuration.getStringValue(knownSonePrefix + "/ID").getValue(null);
 689                         if (knownSoneId == null) {
 690                                 break;
 691                         }
 692                         String knownSoneName = configuration.getStringValue(knownSonePrefix + "/Name").getValue(null);
 693                         String knownSoneKey = configuration.getStringValue(knownSonePrefix + "/Key").getValue(null);
 694                         try {
 695                                 getSone(knownSoneId).setName(knownSoneName).setRequestUri(new FreenetURI(knownSoneKey));
 696                         } catch (MalformedURLException mue1) {
 697                                 logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + knownSoneKey + "”)!", mue1);
 698                         }
 699                 }
 700
 701                 /* load all remote Sones. */
 702                 for (Sone remoteSone : getRemoteSones()) {
 703                         loadSone(remoteSone);
 704                 }
 705
 706                 logger.exiting(Core.class.getName(), "loadConfiguration()");
 707         }
 708
 709         /**
 710          * Saves the configuraiton.
 711          */
 712         private void saveConfiguration() {
 713                 Set<Sone> sones = getSones();
 714                 logger.log(Level.INFO, "Storing %d Sones…", sones.size());
 715                 try {
 716                         /* store all Sones. */
 717                         int soneId = 0;
 718                         for (Sone sone : localSones) {
 719                                 String sonePrefix = "Sone/Sone." + soneId++;
 720                                 configuration.getStringValue(sonePrefix + "/ID").setValue(sone.getId());
 721                                 configuration.getStringValue(sonePrefix + "/Name").setValue(sone.getName());
 722                                 configuration.getLongValue(sonePrefix + "/Time").setValue(sone.getTime());
 723                                 configuration.getStringValue(sonePrefix + "/RequestURI").setValue(sone.getRequestUri().toString());
 724                                 configuration.getStringValue(sonePrefix + "/InsertURI").setValue(sone.getInsertUri().toString());
 725                                 configuration.getLongValue(sonePrefix + "/ModificationCounter").setValue(sone.getModificationCounter());
 726                                 Profile profile = sone.getProfile();
 727                                 configuration.getStringValue(sonePrefix + "/Profile/FirstName").setValue(profile.getFirstName());
 728                                 configuration.getStringValue(sonePrefix + "/Profile/MiddleName").setValue(profile.getMiddleName());
 729                                 configuration.getStringValue(sonePrefix + "/Profile/LastName").setValue(profile.getLastName());
 730                                 int postId = 0;
 731                                 for (Post post : sone.getPosts()) {
 732                                         String postPrefix = sonePrefix + "/Post." + postId++;
 733                                         configuration.getStringValue(postPrefix + "/ID").setValue(post.getId());
 734                                         configuration.getLongValue(postPrefix + "/Time").setValue(post.getTime());
 735                                         configuration.getStringValue(postPrefix + "/Text").setValue(post.getText());
 736                                 }
 737                                 /* write null ID as terminator. */
 738                                 configuration.getStringValue(sonePrefix + "/Post." + postId + "/ID").setValue(null);
 739
 740                                 int replyId = 0;
 741                                 for (Reply reply : sone.getReplies()) {
 742                                         String replyPrefix = sonePrefix + "/Reply." + replyId++;
 743                                         configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
 744                                         configuration.getStringValue(replyPrefix + "/Post").setValue(reply.getPost().getId());
 745                                         configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
 746                                         configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
 747                                 }
 748                                 /* write null ID as terminator. */
 749                                 configuration.getStringValue(sonePrefix + "/Reply." + replyId + "/ID").setValue(null);
 750
 751                                 int friendId = 0;
 752                                 for (Sone friend : sone.getFriends()) {
 753                                         String friendPrefix = sonePrefix + "/Friend." + friendId++;
 754                                         configuration.getStringValue(friendPrefix + "/ID").setValue(friend.getId());
 755                                         configuration.getStringValue(friendPrefix + "/Key").setValue(friend.getRequestUri().toString());
 756                                         configuration.getStringValue(friendPrefix + "/Name").setValue(friend.getName());
 757                                 }
 758                                 /* write null ID as terminator. */
 759                                 configuration.getStringValue(sonePrefix + "/Friend." + friendId + "/ID").setValue(null);
 760
 761                                 /* write all blocked Sones. */
 762                                 int blockedSoneCounter = 0;
 763                                 for (String blockedSoneId : sone.getBlockedSoneIds()) {
 764                                         String blockedSonePrefix = sonePrefix + "/BlockedSone." + blockedSoneCounter++;
 765                                         configuration.getStringValue(blockedSonePrefix + "/ID").setValue(blockedSoneId);
 766                                 }
 767                                 configuration.getStringValue(sonePrefix + "/BlockedSone." + blockedSoneCounter + "/ID").setValue(null);
 768
 769                                 /* write all liked posts. */
 770                                 int likedPostIdCounter = 0;
 771                                 for (String soneLikedPostId : sone.getLikedPostIds()) {
 772                                         String likedPostIdPrefix = sonePrefix + "/LikedPostId." + likedPostIdCounter++;
 773                                         configuration.getStringValue(likedPostIdPrefix + "/ID").setValue(soneLikedPostId);
 774                                 }
 775                                 configuration.getStringValue(sonePrefix + "/LikedPostId." + likedPostIdCounter + "/ID").setValue(null);
 776
 777                         }
 778                         /* write null ID as terminator. */
 779                         configuration.getStringValue("Sone/Sone." + soneId + "/ID").setValue(null);
 780
 781                         /* write all known Sones. */
 782                         int knownSonesCounter = 0;
 783                         for (Sone knownSone : getRemoteSones()) {
 784                                 String knownSonePrefix = "KnownSone." + knownSonesCounter++;
 785                                 configuration.getStringValue(knownSonePrefix + "/ID").setValue(knownSone.getId());
 786                                 configuration.getStringValue(knownSonePrefix + "/Name").setValue(knownSone.getName());
 787                                 configuration.getStringValue(knownSonePrefix + "/Key").setValue(knownSone.getRequestUri().toString());
 788                                 /* TODO - store all known stuff? */
 789                         }
 790                         configuration.getStringValue("KnownSone." + knownSonesCounter + "/ID").setValue(null);
 791
 792                 } catch (ConfigurationException ce1) {
 793                         logger.log(Level.WARNING, "Could not store configuration!", ce1);
 794                 }
 795         }
 796
 797 }