X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdatabase%2Fmemory%2FMemoryDatabase.java;fp=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdatabase%2Fmemory%2FMemoryDatabase.java;h=0000000000000000000000000000000000000000;hp=5e5021c1eba108b7815713cb9dc09d9af57eca92;hb=03cec6a6772c2d836d94864adddaf544cbe9d72f;hpb=6f1f26e3998cfef155b0cf59152827accea70d30 diff --git a/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java b/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java deleted file mode 100644 index 5e5021c..0000000 --- a/src/main/java/net/pterodactylus/sone/database/memory/MemoryDatabase.java +++ /dev/null @@ -1,762 +0,0 @@ -/* - * Sone - MemoryDatabase.java - Copyright © 2013–2016 David Roden - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -package net.pterodactylus.sone.database.memory; - -import static com.google.common.base.Optional.fromNullable; -import static com.google.common.base.Preconditions.checkNotNull; -import static com.google.common.base.Predicates.not; -import static com.google.common.collect.FluentIterable.from; -import static net.pterodactylus.sone.data.Reply.TIME_COMPARATOR; -import static net.pterodactylus.sone.data.Sone.LOCAL_SONE_FILTER; -import static net.pterodactylus.sone.data.Sone.toAllAlbums; -import static net.pterodactylus.sone.data.Sone.toAllImages; - -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.concurrent.locks.ReadWriteLock; -import java.util.concurrent.locks.ReentrantReadWriteLock; - -import javax.annotation.Nonnull; -import javax.annotation.Nullable; - -import net.pterodactylus.sone.data.Album; -import net.pterodactylus.sone.data.Image; -import net.pterodactylus.sone.data.Post; -import net.pterodactylus.sone.data.PostReply; -import net.pterodactylus.sone.data.Sone; -import net.pterodactylus.sone.data.impl.AlbumBuilderImpl; -import net.pterodactylus.sone.data.impl.ImageBuilderImpl; -import net.pterodactylus.sone.database.AlbumBuilder; -import net.pterodactylus.sone.database.Database; -import net.pterodactylus.sone.database.DatabaseException; -import net.pterodactylus.sone.database.ImageBuilder; -import net.pterodactylus.sone.database.PostBuilder; -import net.pterodactylus.sone.database.PostDatabase; -import net.pterodactylus.sone.database.PostReplyBuilder; -import net.pterodactylus.sone.database.SoneBuilder; -import net.pterodactylus.sone.database.SoneProvider; -import net.pterodactylus.util.config.Configuration; -import net.pterodactylus.util.config.ConfigurationException; - -import com.google.common.base.Predicate; -import com.google.common.collect.HashMultimap; -import com.google.common.collect.Multimap; -import com.google.common.collect.SortedSetMultimap; -import com.google.common.collect.TreeMultimap; -import com.google.common.util.concurrent.AbstractService; -import com.google.inject.Inject; -import com.google.inject.Singleton; -import kotlin.jvm.functions.Function1; - -/** - * Memory-based {@link PostDatabase} implementation. - * - * @author David ‘Bombe’ Roden - */ -@Singleton -public class MemoryDatabase extends AbstractService implements Database { - - /** The lock. */ - private final ReadWriteLock lock = new ReentrantReadWriteLock(); - - /** The Sone provider. */ - private final SoneProvider soneProvider; - - /** The configuration. */ - private final Configuration configuration; - private final ConfigurationLoader configurationLoader; - - private final Map allSones = new HashMap(); - - /** All posts by their ID. */ - private final Map allPosts = new HashMap(); - - /** All posts by their Sones. */ - private final Multimap sonePosts = HashMultimap.create(); - - /** Whether posts are known. */ - private final Set knownPosts = new HashSet(); - - /** All post replies by their ID. */ - private final Map allPostReplies = new HashMap(); - - /** Replies sorted by Sone. */ - private final SortedSetMultimap sonePostReplies = TreeMultimap.create(new Comparator() { - - @Override - public int compare(String leftString, String rightString) { - return leftString.compareTo(rightString); - } - }, TIME_COMPARATOR); - - /** Whether post replies are known. */ - private final Set knownPostReplies = new HashSet(); - - private final Map allAlbums = new HashMap(); - private final Multimap soneAlbums = HashMultimap.create(); - - private final Map allImages = new HashMap(); - private final Multimap soneImages = HashMultimap.create(); - - private final MemoryBookmarkDatabase memoryBookmarkDatabase; - private final MemoryFriendDatabase memoryFriendDatabase; - - /** - * Creates a new memory database. - * - * @param soneProvider - * The Sone provider - * @param configuration - * The configuration for loading and saving elements - */ - @Inject - public MemoryDatabase(SoneProvider soneProvider, Configuration configuration) { - this.soneProvider = soneProvider; - this.configuration = configuration; - this.configurationLoader = new ConfigurationLoader(configuration); - memoryBookmarkDatabase = - new MemoryBookmarkDatabase(this, configurationLoader); - memoryFriendDatabase = new MemoryFriendDatabase(configurationLoader); - } - - // - // DATABASE METHODS - // - - /** - * Saves the database. - * - * @throws DatabaseException - * if an error occurs while saving - */ - @Override - public void save() throws DatabaseException { - saveKnownPosts(); - saveKnownPostReplies(); - } - - // - // SERVICE METHODS - // - - /** {@inheritDocs} */ - @Override - protected void doStart() { - memoryBookmarkDatabase.start(); - loadKnownPosts(); - loadKnownPostReplies(); - notifyStarted(); - } - - /** {@inheritDocs} */ - @Override - protected void doStop() { - try { - memoryBookmarkDatabase.stop(); - save(); - notifyStopped(); - } catch (DatabaseException de1) { - notifyFailed(de1); - } - } - - @Override - public SoneBuilder newSoneBuilder() { - return new MemorySoneBuilder(this); - } - - @Override - public void storeSone(Sone sone) { - lock.writeLock().lock(); - try { - removeSone(sone); - - allSones.put(sone.getId(), sone); - sonePosts.putAll(sone.getId(), sone.getPosts()); - for (Post post : sone.getPosts()) { - allPosts.put(post.getId(), post); - } - sonePostReplies.putAll(sone.getId(), sone.getReplies()); - for (PostReply postReply : sone.getReplies()) { - allPostReplies.put(postReply.getId(), postReply); - } - soneAlbums.putAll(sone.getId(), toAllAlbums.apply(sone)); - for (Album album : toAllAlbums.apply(sone)) { - allAlbums.put(album.getId(), album); - } - soneImages.putAll(sone.getId(), toAllImages.apply(sone)); - for (Image image : toAllImages.apply(sone)) { - allImages.put(image.getId(), image); - } - } finally { - lock.writeLock().unlock(); - } - } - - @Override - public void removeSone(Sone sone) { - lock.writeLock().lock(); - try { - allSones.remove(sone.getId()); - Collection removedPosts = sonePosts.removeAll(sone.getId()); - for (Post removedPost : removedPosts) { - allPosts.remove(removedPost.getId()); - } - Collection removedPostReplies = - sonePostReplies.removeAll(sone.getId()); - for (PostReply removedPostReply : removedPostReplies) { - allPostReplies.remove(removedPostReply.getId()); - } - Collection removedAlbums = - soneAlbums.removeAll(sone.getId()); - for (Album removedAlbum : removedAlbums) { - allAlbums.remove(removedAlbum.getId()); - } - Collection removedImages = - soneImages.removeAll(sone.getId()); - for (Image removedImage : removedImages) { - allImages.remove(removedImage.getId()); - } - } finally { - lock.writeLock().unlock(); - } - } - - @Nonnull - @Override - public Function1 getSoneLoader() { - return new Function1() { - @Override - public Sone invoke(String soneId) { - return getSone(soneId); - } - }; - } - - @Override - public Sone getSone(String soneId) { - lock.readLock().lock(); - try { - return allSones.get(soneId); - } finally { - lock.readLock().unlock(); - } - } - - @Override - public Collection getSones() { - lock.readLock().lock(); - try { - return new HashSet(allSones.values()); - } finally { - lock.readLock().unlock(); - } - } - - @Override - public Collection getLocalSones() { - lock.readLock().lock(); - try { - return from(allSones.values()).filter(LOCAL_SONE_FILTER).toSet(); - } finally { - lock.readLock().unlock(); - } - } - - @Override - public Collection getRemoteSones() { - lock.readLock().lock(); - try { - return from(allSones.values()) - .filter(not(LOCAL_SONE_FILTER)) .toSet(); - } finally { - lock.readLock().unlock(); - } - } - - @Override - public Collection getFriends(Sone localSone) { - if (!localSone.isLocal()) { - return Collections.emptySet(); - } - return memoryFriendDatabase.getFriends(localSone.getId()); - } - - @Override - public boolean isFriend(Sone localSone, String friendSoneId) { - if (!localSone.isLocal()) { - return false; - } - return memoryFriendDatabase.isFriend(localSone.getId(), friendSoneId); - } - - @Override - public void addFriend(Sone localSone, String friendSoneId) { - if (!localSone.isLocal()) { - return; - } - memoryFriendDatabase.addFriend(localSone.getId(), friendSoneId); - } - - @Override - public void removeFriend(Sone localSone, String friendSoneId) { - if (!localSone.isLocal()) { - return; - } - memoryFriendDatabase.removeFriend(localSone.getId(), friendSoneId); - } - - // - // POSTPROVIDER METHODS - // - - @Nullable - @Override - public Post getPost(@Nonnull String postId) { - lock.readLock().lock(); - try { - return allPosts.get(postId); - } finally { - lock.readLock().unlock(); - } - } - - /** {@inheritDocs} */ - @Override - public Collection getPosts(String soneId) { - return new HashSet(getPostsFrom(soneId)); - } - - /** {@inheritDocs} */ - @Override - public Collection getDirectedPosts(final String recipientId) { - lock.readLock().lock(); - try { - return from(sonePosts.values()).filter(new Predicate() { - @Override - public boolean apply(Post post) { - return post.getRecipientId().asSet().contains(recipientId); - } - }).toSet(); - } finally { - lock.readLock().unlock(); - } - } - - // - // POSTBUILDERFACTORY METHODS - // - - /** {@inheritDocs} */ - @Override - public PostBuilder newPostBuilder() { - return new MemoryPostBuilder(this, soneProvider); - } - - // - // POSTSTORE METHODS - // - - /** {@inheritDocs} */ - @Override - public void storePost(Post post) { - checkNotNull(post, "post must not be null"); - lock.writeLock().lock(); - try { - allPosts.put(post.getId(), post); - getPostsFrom(post.getSone().getId()).add(post); - } finally { - lock.writeLock().unlock(); - } - } - - /** {@inheritDocs} */ - @Override - public void removePost(Post post) { - checkNotNull(post, "post must not be null"); - lock.writeLock().lock(); - try { - allPosts.remove(post.getId()); - getPostsFrom(post.getSone().getId()).remove(post); - post.getSone().removePost(post); - } finally { - lock.writeLock().unlock(); - } - } - - // - // POSTREPLYPROVIDER METHODS - // - - @Nullable - @Override - public PostReply getPostReply(String id) { - lock.readLock().lock(); - try { - return allPostReplies.get(id); - } finally { - lock.readLock().unlock(); - } - } - - /** {@inheritDocs} */ - @Override - public List getReplies(final String postId) { - lock.readLock().lock(); - try { - return from(allPostReplies.values()) - .filter(new Predicate() { - @Override - public boolean apply(PostReply postReply) { - return postReply.getPostId().equals(postId); - } - }).toSortedList(TIME_COMPARATOR); - } finally { - lock.readLock().unlock(); - } - } - - // - // POSTREPLYBUILDERFACTORY METHODS - // - - /** {@inheritDocs} */ - @Override - public PostReplyBuilder newPostReplyBuilder() { - return new MemoryPostReplyBuilder(this, soneProvider); - } - - // - // POSTREPLYSTORE METHODS - // - - /** {@inheritDocs} */ - @Override - public void storePostReply(PostReply postReply) { - lock.writeLock().lock(); - try { - allPostReplies.put(postReply.getId(), postReply); - } finally { - lock.writeLock().unlock(); - } - } - - /** {@inheritDocs} */ - @Override - public void removePostReply(PostReply postReply) { - lock.writeLock().lock(); - try { - allPostReplies.remove(postReply.getId()); - } finally { - lock.writeLock().unlock(); - } - } - - // - // ALBUMPROVDER METHODS - // - - @Nullable - @Override - public Album getAlbum(@Nonnull String albumId) { - lock.readLock().lock(); - try { - return allAlbums.get(albumId); - } finally { - lock.readLock().unlock(); - } - } - - // - // ALBUMBUILDERFACTORY METHODS - // - - @Override - public AlbumBuilder newAlbumBuilder() { - return new AlbumBuilderImpl(); - } - - // - // ALBUMSTORE METHODS - // - - @Override - public void storeAlbum(Album album) { - lock.writeLock().lock(); - try { - allAlbums.put(album.getId(), album); - soneAlbums.put(album.getSone().getId(), album); - } finally { - lock.writeLock().unlock(); - } - } - - @Override - public void removeAlbum(Album album) { - lock.writeLock().lock(); - try { - allAlbums.remove(album.getId()); - soneAlbums.remove(album.getSone().getId(), album); - } finally { - lock.writeLock().unlock(); - } - } - - // - // IMAGEPROVIDER METHODS - // - - @Nullable - @Override - public Image getImage(@Nonnull String imageId) { - lock.readLock().lock(); - try { - return allImages.get(imageId); - } finally { - lock.readLock().unlock(); - } - } - - // - // IMAGEBUILDERFACTORY METHODS - // - - @Override - public ImageBuilder newImageBuilder() { - return new ImageBuilderImpl(); - } - - // - // IMAGESTORE METHODS - // - - @Override - public void storeImage(Image image) { - lock.writeLock().lock(); - try { - allImages.put(image.getId(), image); - soneImages.put(image.getSone().getId(), image); - } finally { - lock.writeLock().unlock(); - } - } - - @Override - public void removeImage(Image image) { - lock.writeLock().lock(); - try { - allImages.remove(image.getId()); - soneImages.remove(image.getSone().getId(), image); - } finally { - lock.writeLock().unlock(); - } - } - - @Override - public void bookmarkPost(Post post) { - memoryBookmarkDatabase.bookmarkPost(post); - } - - @Override - public void unbookmarkPost(Post post) { - memoryBookmarkDatabase.unbookmarkPost(post); - } - - @Override - public boolean isPostBookmarked(Post post) { - return memoryBookmarkDatabase.isPostBookmarked(post); - } - - @Override - public Set getBookmarkedPosts() { - return memoryBookmarkDatabase.getBookmarkedPosts(); - } - - // - // PACKAGE-PRIVATE METHODS - // - - /** - * Returns whether the given post is known. - * - * @param post - * The post - * @return {@code true} if the post is known, {@code false} otherwise - */ - boolean isPostKnown(Post post) { - lock.readLock().lock(); - try { - return knownPosts.contains(post.getId()); - } finally { - lock.readLock().unlock(); - } - } - - /** - * Sets whether the given post is known. - * - * @param post - * The post - * @param known - * {@code true} if the post is known, {@code false} otherwise - */ - void setPostKnown(Post post, boolean known) { - lock.writeLock().lock(); - try { - if (known) { - knownPosts.add(post.getId()); - } else { - knownPosts.remove(post.getId()); - } - } finally { - lock.writeLock().unlock(); - } - } - - /** - * Returns whether the given post reply is known. - * - * @param postReply - * The post reply - * @return {@code true} if the given post reply is known, {@code false} - * otherwise - */ - boolean isPostReplyKnown(PostReply postReply) { - lock.readLock().lock(); - try { - return knownPostReplies.contains(postReply.getId()); - } finally { - lock.readLock().unlock(); - } - } - - /** - * Sets whether the given post reply is known. - * - * @param postReply - * The post reply - * @param known - * {@code true} if the post reply is known, {@code false} otherwise - */ - void setPostReplyKnown(PostReply postReply, boolean known) { - lock.writeLock().lock(); - try { - if (known) { - knownPostReplies.add(postReply.getId()); - } else { - knownPostReplies.remove(postReply.getId()); - } - } finally { - lock.writeLock().unlock(); - } - } - - // - // PRIVATE METHODS - // - - /** - * Gets all posts for the given Sone, creating a new collection if there is - * none yet. - * - * @param soneId - * The ID of the Sone to get the posts for - * @return All posts - */ - private Collection getPostsFrom(String soneId) { - lock.readLock().lock(); - try { - return sonePosts.get(soneId); - } finally { - lock.readLock().unlock(); - } - } - - /** Loads the known posts. */ - private void loadKnownPosts() { - Set knownPosts = configurationLoader.loadKnownPosts(); - lock.writeLock().lock(); - try { - this.knownPosts.clear(); - this.knownPosts.addAll(knownPosts); - } finally { - lock.writeLock().unlock(); - } - } - - /** - * Saves the known posts to the configuration. - * - * @throws DatabaseException - * if a configuration error occurs - */ - private void saveKnownPosts() throws DatabaseException { - lock.readLock().lock(); - try { - int postCounter = 0; - for (String knownPostId : knownPosts) { - configuration.getStringValue("KnownPosts/" + postCounter++ + "/ID").setValue(knownPostId); - } - configuration.getStringValue("KnownPosts/" + postCounter + "/ID").setValue(null); - } catch (ConfigurationException ce1) { - throw new DatabaseException("Could not save database.", ce1); - } finally { - lock.readLock().unlock(); - } - } - - /** Loads the known post replies. */ - private void loadKnownPostReplies() { - Set knownPostReplies = configurationLoader.loadKnownPostReplies(); - lock.writeLock().lock(); - try { - this.knownPostReplies.clear(); - this.knownPostReplies.addAll(knownPostReplies); - } finally { - lock.writeLock().unlock(); - } - } - - /** - * Saves the known post replies to the configuration. - * - * @throws DatabaseException - * if a configuration error occurs - */ - private void saveKnownPostReplies() throws DatabaseException { - lock.readLock().lock(); - try { - int replyCounter = 0; - for (String knownReplyId : knownPostReplies) { - configuration.getStringValue("KnownReplies/" + replyCounter++ + "/ID").setValue(knownReplyId); - } - configuration.getStringValue("KnownReplies/" + replyCounter + "/ID").setValue(null); - } catch (ConfigurationException ce1) { - throw new DatabaseException("Could not save database.", ce1); - } finally { - lock.readLock().unlock(); - } - } - -}