Store request URI in yet unknown Sones when parsing.
[Sone.git] / src / main / java / net / pterodactylus / sone / core / Core.java
index b38aac6..b838216 100644 (file)
 package net.pterodactylus.sone.core;
 
 import java.net.MalformedURLException;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.UUID;
@@ -29,18 +33,14 @@ import java.util.logging.Logger;
 
 import net.pterodactylus.sone.core.SoneException.Type;
 import net.pterodactylus.sone.data.Post;
-import net.pterodactylus.sone.data.PostShell;
 import net.pterodactylus.sone.data.Profile;
 import net.pterodactylus.sone.data.Reply;
-import net.pterodactylus.sone.data.ReplyShell;
-import net.pterodactylus.sone.data.Shell;
-import net.pterodactylus.sone.data.ShellCache;
 import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.data.SoneShell;
 import net.pterodactylus.util.config.Configuration;
 import net.pterodactylus.util.config.ConfigurationException;
 import net.pterodactylus.util.logging.Logging;
 import net.pterodactylus.util.service.AbstractService;
+import freenet.client.FetchResult;
 import freenet.keys.FreenetURI;
 
 /**
@@ -59,6 +59,9 @@ public class Core extends AbstractService {
        /** Interface to freenet. */
        private FreenetInterface freenetInterface;
 
+       /** The Sone downloader. */
+       private SoneDownloader soneDownloader;
+
        /** The local Sones. */
        private final Set<Sone> localSones = new HashSet<Sone>();
 
@@ -68,13 +71,13 @@ public class Core extends AbstractService {
        /* various caches follow here. */
 
        /** Cache for all known Sones. */
-       private final ShellCache<Sone> soneCache = new ShellCache<Sone>(SoneShell.creator);
+       private final Map<String, Sone> soneCache = new HashMap<String, Sone>();
 
        /** Cache for all known posts. */
-       private final ShellCache<Post> postCache = new ShellCache<Post>(PostShell.creator);
+       private final Map<String, Post> postCache = new HashMap<String, Post>();
 
        /** Cache for all known replies. */
-       private final ShellCache<Reply> replyCache = new ShellCache<Reply>(ReplyShell.creator);
+       private final Map<String, Reply> replyCache = new HashMap<String, Reply>();
 
        /**
         * Creates a new core.
@@ -108,6 +111,8 @@ public class Core extends AbstractService {
         */
        public Core freenetInterface(FreenetInterface freenetInterface) {
                this.freenetInterface = freenetInterface;
+               soneDownloader = new SoneDownloader(this, freenetInterface);
+               soneDownloader.start();
                return this;
        }
 
@@ -121,18 +126,92 @@ public class Core extends AbstractService {
        }
 
        /**
-        * Returns a Sone or a {@link Shell} around one for the given ID.
+        * Returns the Sone with the given ID, or an empty Sone that has been
+        * initialized with the given ID.
         *
         * @param soneId
         *            The ID of the Sone
-        * @return The Sone, or a {@link Shell} around one
+        * @return The Sone
         */
        public Sone getSone(String soneId) {
-               Sone sone = soneCache.get(soneId);
-               if (sone instanceof SoneShell) {
-                       soneCache.put(soneId, sone = ((SoneShell) sone).getShelled());
+               if (!soneCache.containsKey(soneId)) {
+                       Sone sone = new Sone(soneId);
+                       soneCache.put(soneId, sone);
                }
-               return sone;
+               return soneCache.get(soneId);
+       }
+
+       /**
+        * Returns all known sones.
+        *
+        * @return All known sones
+        */
+       public Collection<Sone> getKnownSones() {
+               return soneCache.values();
+       }
+
+       /**
+        * Creates a new post.
+        *
+        * @param sone
+        *            The sone that creates the post
+        * @param text
+        *            The text of the post
+        * @return The created post
+        */
+       public Post createPost(Sone sone, String text) {
+               return createPost(sone, System.currentTimeMillis(), text);
+       }
+
+       /**
+        * Creates a new post.
+        *
+        * @param sone
+        *            The Sone that creates the post
+        * @param time
+        *            The time of the post
+        * @param text
+        *            The text of the post
+        * @return The created post
+        */
+       public Post createPost(Sone sone, long time, String text) {
+               Post post = getPost(UUID.randomUUID().toString()).setSone(sone).setTime(time).setText(text);
+               sone.addPost(post);
+               return post;
+       }
+
+       /**
+        * Creates a reply.
+        *
+        * @param sone
+        *            The Sone that posts the reply
+        * @param post
+        *            The post the reply refers to
+        * @param text
+        *            The text of the reply
+        * @return The created reply
+        */
+       public Reply createReply(Sone sone, Post post, String text) {
+               return createReply(sone, post, System.currentTimeMillis(), text);
+       }
+
+       /**
+        * Creates a reply.
+        *
+        * @param sone
+        *            The Sone that posts the reply
+        * @param post
+        *            The post the reply refers to
+        * @param time
+        *            The time of the post
+        * @param text
+        *            The text of the reply
+        * @return The created reply
+        */
+       public Reply createReply(Sone sone, Post post, long time, String text) {
+               Reply reply = getReply(UUID.randomUUID().toString()).setSone(sone).setPost(post).setTime(time).setText(text);
+               sone.addReply(reply);
+               return reply;
        }
 
        //
@@ -140,14 +219,25 @@ public class Core extends AbstractService {
        //
 
        /**
+        * Adds a Sone to watch for updates. The Sone needs to be completely
+        * initialized.
+        *
+        * @param sone
+        *            The Sone to watch for updates
+        */
+       public void addSone(Sone sone) {
+               soneCache.put(sone.getId(), sone);
+               soneDownloader.addSone(sone);
+       }
+
+       /**
         * Adds the given Sone.
         *
         * @param sone
         *            The Sone to add
         */
-       public void addSone(Sone sone) {
+       public void addLocalSone(Sone sone) {
                if (localSones.add(sone)) {
-                       soneCache.put(sone.getId(), sone);
                        SoneInserter soneInserter = new SoneInserter(freenetInterface, sone);
                        soneInserter.start();
                        soneInserters.put(sone, soneInserter);
@@ -201,11 +291,11 @@ public class Core extends AbstractService {
                Sone sone;
                try {
                        logger.log(Level.FINEST, "Creating new Sone “%s” at %s (%s)…", new Object[] { name, finalRequestUri, finalInsertUri });
-                       sone = new Sone(UUID.randomUUID(), name, new FreenetURI(finalRequestUri).setKeyType("USK"), new FreenetURI(finalInsertUri).setKeyType("USK"));
+                       sone = getSone(UUID.randomUUID().toString()).setName(name).setRequestUri(new FreenetURI(finalRequestUri).setKeyType("USK").setDocName("Sone-" + name)).setInsertUri(new FreenetURI(finalInsertUri).setKeyType("USK").setDocName("Sone-" + name));
                        sone.setProfile(new Profile());
                        /* set modification counter to 1 so it is inserted immediately. */
                        sone.setModificationCounter(1);
-                       addSone(sone);
+                       addLocalSone(sone);
                } catch (MalformedURLException mue1) {
                        throw new SoneException(Type.INVALID_URI);
                }
@@ -213,6 +303,22 @@ public class Core extends AbstractService {
        }
 
        /**
+        * Loads the Sone from the given request URI.
+        *
+        * @param requestUri
+        *            The request URI to load the Sone from
+        */
+       public void loadSone(String requestUri) {
+               try {
+                       FreenetURI realRequestUri = new FreenetURI(requestUri).setMetaString(new String[] { "sone.xml" });
+                       FetchResult fetchResult = freenetInterface.fetchUri(realRequestUri);
+                       soneDownloader.parseSone(null, fetchResult, realRequestUri);
+               } catch (MalformedURLException mue1) {
+                       logger.log(Level.INFO, "Could not create URI from “" + requestUri + "”.", mue1);
+               }
+       }
+
+       /**
         * Deletes the given Sone from this plugin instance.
         *
         * @param sone
@@ -224,6 +330,63 @@ public class Core extends AbstractService {
                localSones.remove(sone);
        }
 
+       /**
+        * Returns the post with the given ID. If no post exists yet with the given
+        * ID, a new post is returned.
+        *
+        * @param postId
+        *            The ID of the post
+        * @return The post
+        */
+       public Post getPost(String postId) {
+               if (!postCache.containsKey(postId)) {
+                       postCache.put(postId, new Post(postId));
+               }
+               return postCache.get(postId);
+       }
+
+       /**
+        * Returns the reply with the given ID. If no reply exists yet with the
+        * given ID, a new reply is returned.
+        *
+        * @param replyId
+        *            The ID of the reply
+        * @return The reply
+        */
+       public Reply getReply(String replyId) {
+               if (!replyCache.containsKey(replyId)) {
+                       replyCache.put(replyId, new Reply(replyId));
+               }
+               return replyCache.get(replyId);
+       }
+
+       /**
+        * Gets all replies to the given post, sorted by date, oldest first.
+        *
+        * @param post
+        *            The post the replies refer to
+        * @return The sorted list of replies for the post
+        */
+       public List<Reply> getReplies(Post post) {
+               List<Reply> replies = new ArrayList<Reply>();
+               for (Reply reply : replyCache.values()) {
+                       if (reply.getPost().equals(post)) {
+                               replies.add(reply);
+                       }
+               }
+               Collections.sort(replies, new Comparator<Reply>() {
+
+                       /**
+                        * {@inheritDoc}
+                        */
+                       @Override
+                       public int compare(Reply leftReply, Reply rightReply) {
+                               return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, leftReply.getTime() - rightReply.getTime()));
+                       }
+               });
+               return replies;
+       }
+
        //
        // SERVICE METHODS
        //
@@ -241,6 +404,7 @@ public class Core extends AbstractService {
         */
        @Override
        protected void serviceStop() {
+               soneDownloader.stop();
                /* stop all Sone inserters. */
                for (SoneInserter soneInserter : soneInserters.values()) {
                        soneInserter.stop();
@@ -279,8 +443,7 @@ public class Core extends AbstractService {
                                profile.setFirstName(firstName);
                                profile.setMiddleName(middleName);
                                profile.setLastName(lastName);
-                               Sone sone = new Sone(UUID.fromString(id), name, new FreenetURI(requestUri), new FreenetURI(insertUri));
-                               soneCache.put(id, sone);
+                               Sone sone = getSone(id).setName(name).setRequestUri(new FreenetURI(requestUri)).setInsertUri(new FreenetURI(insertUri));
                                sone.setProfile(profile);
                                int postId = 0;
                                do {
@@ -291,8 +454,7 @@ public class Core extends AbstractService {
                                        }
                                        long time = configuration.getLongValue(postPrefix + "/Time").getValue(null);
                                        String text = configuration.getStringValue(postPrefix + "/Text").getValue(null);
-                                       Post post = new Post(UUID.fromString(id), sone, time, text);
-                                       postCache.put(id, post);
+                                       Post post = getPost(id).setSone(sone).setTime(time).setText(text);
                                        sone.addPost(post);
                                } while (true);
                                int replyCounter = 0;
@@ -302,20 +464,31 @@ public class Core extends AbstractService {
                                        if (replyId == null) {
                                                break;
                                        }
-                                       Sone replySone = soneCache.get(configuration.getStringValue(replyPrefix + "/Sone/ID").getValue(null));
-                                       String replySoneKey = configuration.getStringValue(replyPrefix + "/Sone/Key").getValue(null);
-                                       String replySoneName = configuration.getStringValue(replyPrefix + "/Sone/Name").getValue(null);
-                                       if (replySone instanceof SoneShell) {
-                                               ((SoneShell) replySone).setRequestUri(new FreenetURI(replySoneKey)).setName(replySoneName);
-                                       }
-                                       Post replyPost = postCache.get(configuration.getStringValue(replyPrefix + "/Post").getValue(null));
+                                       Post replyPost = getPost(configuration.getStringValue(replyPrefix + "/Post").getValue(null));
                                        long replyTime = configuration.getLongValue(replyPrefix + "/Time").getValue(null);
                                        String replyText = configuration.getStringValue(replyPrefix + "/Text").getValue(null);
-                                       Reply reply = new ReplyShell().setSone(replySone).setPost(replyPost).setTime(replyTime).setText(replyText).getShelled();
-                                       replyCache.put(replyId, reply);
+                                       Reply reply = getReply(replyId).setSone(sone).setPost(replyPost).setTime(replyTime).setText(replyText);
+                                       sone.addReply(reply);
                                } while (true);
+
+                               /* load friends. */
+                               int friendCounter = 0;
+                               while (true) {
+                                       String friendPrefix = sonePrefix + "/Friend." + friendCounter++;
+                                       String friendId = configuration.getStringValue(friendPrefix + "/ID").getValue(null);
+                                       if (friendId == null) {
+                                               break;
+                                       }
+                                       Sone friendSone = getSone(friendId);
+                                       String friendKey = configuration.getStringValue(friendPrefix + "/Key").getValue(null);
+                                       String friendName = configuration.getStringValue(friendPrefix + "/Name").getValue(null);
+                                       friendSone.setRequestUri(new FreenetURI(friendKey)).setName(friendName);
+                                       soneDownloader.addSone(friendSone);
+                                       sone.addFriend(friendSone);
+                               }
+
                                sone.setModificationCounter(modificationCounter);
-                               addSone(sone);
+                               addLocalSone(sone);
                        } catch (MalformedURLException mue1) {
                                logger.log(Level.WARNING, "Could not create Sone from requestUri (“" + requestUri + "”) and insertUri (“" + insertUri + "”)!", mue1);
                        }
@@ -359,9 +532,6 @@ public class Core extends AbstractService {
                                for (Reply reply : sone.getReplies()) {
                                        String replyPrefix = sonePrefix + "/Reply." + replyId++;
                                        configuration.getStringValue(replyPrefix + "/ID").setValue(reply.getId());
-                                       configuration.getStringValue(replyPrefix + "/Sone/ID").setValue(reply.getSone().getId());
-                                       configuration.getStringValue(replyPrefix + "/Sone/Key").setValue(reply.getSone().getRequestUri().toString());
-                                       configuration.getStringValue(replyPrefix + "/Sone/Name").setValue(reply.getSone().getName());
                                        configuration.getStringValue(replyPrefix + "/Post").setValue(reply.getPost().getId());
                                        configuration.getLongValue(replyPrefix + "/Time").setValue(reply.getTime());
                                        configuration.getStringValue(replyPrefix + "/Text").setValue(reply.getText());
@@ -369,7 +539,20 @@ public class Core extends AbstractService {
                                /* write null ID as terminator. */
                                configuration.getStringValue(sonePrefix + "/Reply." + replyId + "/ID").setValue(null);
 
+                               int friendId = 0;
+                               for (Sone friend : sone.getFriends()) {
+                                       String friendPrefix = sonePrefix + "/Friend." + friendId++;
+                                       configuration.getStringValue(friendPrefix + "/ID").setValue(friend.getId());
+                                       configuration.getStringValue(friendPrefix + "/Key").setValue(friend.getRequestUri().toString());
+                                       configuration.getStringValue(friendPrefix + "/Name").setValue(friend.getName());
+                               }
+                               /* write null ID as terminator. */
+                               configuration.getStringValue(sonePrefix + "/Friend." + friendId + "/ID").setValue(null);
+
                        }
+                       /* write null ID as terminator. */
+                       configuration.getStringValue("Sone/Sone." + soneId + "/ID").setValue(null);
+
                } catch (ConfigurationException ce1) {
                        logger.log(Level.WARNING, "Could not store configuration!", ce1);
                }