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 java.util.Collections.unmodifiableCollection;
+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.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.SortedSet;
-import java.util.TreeSet;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import net.pterodactylus.sone.data.Image;
import net.pterodactylus.sone.data.Post;
import net.pterodactylus.sone.data.PostReply;
-import net.pterodactylus.sone.data.Reply;
import net.pterodactylus.sone.data.Sone;
import net.pterodactylus.sone.data.impl.AlbumBuilderImpl;
import net.pterodactylus.sone.data.impl.ImageBuilderImpl;
import net.pterodactylus.util.config.ConfigurationException;
import com.google.common.base.Optional;
+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;
/**
* Memory-based {@link PostDatabase} implementation.
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
+@Singleton
public class MemoryDatabase extends AbstractService implements Database {
/** The lock. */
/** The configuration. */
private final Configuration configuration;
+ private final Map<String, Sone> allSones = new HashMap<String, Sone>();
+
/** All posts by their ID. */
private final Map<String, Post> allPosts = new HashMap<String, Post>();
/** All posts by their Sones. */
private final Multimap<String, Post> sonePosts = HashMultimap.create();
- /** All posts by their recipient. */
- private final Map<String, Collection<Post>> recipientPosts = new HashMap<String, Collection<Post>>();
-
/** Whether posts are known. */
private final Set<String> knownPosts = new HashSet<String>();
public int compare(String leftString, String rightString) {
return leftString.compareTo(rightString);
}
- }, PostReply.TIME_COMPARATOR);
-
- /** Replies by post. */
- private final Map<String, SortedSet<PostReply>> postReplies = new HashMap<String, SortedSet<PostReply>>();
+ }, TIME_COMPARATOR);
/** Whether post replies are known. */
private final Set<String> knownPostReplies = new HashSet<String>();
private final Map<String, Album> allAlbums = new HashMap<String, Album>();
+ private final Multimap<String, Album> soneAlbums = HashMultimap.create();
private final Map<String, Image> allImages = new HashMap<String, Image>();
+ private final Multimap<String, Image> soneImages = HashMultimap.create();
/**
* Creates a new memory database.
}
}
+ @Override
+ public void storeSone(Sone sone) {
+ lock.writeLock().lock();
+ try {
+ Collection<Post> removedPosts = sonePosts.removeAll(sone.getId());
+ for (Post removedPost : removedPosts) {
+ allPosts.remove(removedPost.getId());
+ }
+ Collection<PostReply> removedPostReplies =
+ sonePostReplies.removeAll(sone.getId());
+ for (PostReply removedPostReply : removedPostReplies) {
+ allPostReplies.remove(removedPostReply.getId());
+ }
+ Collection<Album> removedAlbums =
+ soneAlbums.removeAll(sone.getId());
+ for (Album removedAlbum : removedAlbums) {
+ allAlbums.remove(removedAlbum.getId());
+ }
+ Collection<Image> removedImages =
+ soneImages.removeAll(sone.getId());
+ for (Image removedImage : removedImages) {
+ allImages.remove(removedImage.getId());
+ }
+
+ 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 Optional<Sone> getSone(String soneId) {
+ lock.readLock().lock();
+ try {
+ return fromNullable(allSones.get(soneId));
+ } finally {
+ lock.readLock().unlock();
+ }
+ }
+
+ @Override
+ public Collection<Sone> getSones() {
+ lock.readLock().lock();
+ try {
+ return unmodifiableCollection(allSones.values());
+ } finally {
+ lock.readLock().unlock();
+ }
+ }
+
+ @Override
+ public Collection<Sone> getLocalSones() {
+ lock.readLock().lock();
+ try {
+ return from(allSones.values()).filter(LOCAL_SONE_FILTER).toSet();
+ } finally {
+ lock.readLock().unlock();
+ }
+ }
+
+ @Override
+ public Collection<Sone> getRemoteSones() {
+ lock.readLock().lock();
+ try {
+ return from(allSones.values())
+ .filter(not(LOCAL_SONE_FILTER)) .toSet();
+ } finally {
+ lock.readLock().unlock();
+ }
+ }
+
//
// POSTPROVIDER METHODS
//
/** {@inheritDocs} */
@Override
- public Collection<Post> getDirectedPosts(String recipientId) {
+ public Collection<Post> getDirectedPosts(final String recipientId) {
lock.readLock().lock();
try {
- Collection<Post> posts = recipientPosts.get(recipientId);
- return (posts == null) ? Collections.<Post>emptySet() : new HashSet<Post>(posts);
+ return from(sonePosts.values()).filter(new Predicate<Post>() {
+ @Override
+ public boolean apply(Post post) {
+ return post.getRecipientId().asSet().contains(recipientId);
+ }
+ }).toSet();
} finally {
lock.readLock().unlock();
}
try {
allPosts.put(post.getId(), post);
getPostsFrom(post.getSone().getId()).add(post);
- if (post.getRecipientId().isPresent()) {
- getPostsTo(post.getRecipientId().get()).add(post);
- }
} finally {
lock.writeLock().unlock();
}
try {
allPosts.remove(post.getId());
getPostsFrom(post.getSone().getId()).remove(post);
- if (post.getRecipientId().isPresent()) {
- getPostsTo(post.getRecipientId().get()).remove(post);
- }
post.getSone().removePost(post);
} finally {
lock.writeLock().unlock();
lock.writeLock().lock();
try {
/* remove all posts by the Sone. */
- getPostsFrom(sone.getId()).clear();
- for (Post post : posts) {
+ Collection<Post> oldPosts = getPostsFrom(sone.getId());
+ for (Post post : oldPosts) {
allPosts.remove(post.getId());
- if (post.getRecipientId().isPresent()) {
- getPostsTo(post.getRecipientId().get()).remove(post);
- }
}
/* add new posts. */
getPostsFrom(sone.getId()).addAll(posts);
for (Post post : posts) {
allPosts.put(post.getId(), post);
- if (post.getRecipientId().isPresent()) {
- getPostsTo(post.getRecipientId().get()).add(post);
- }
}
} finally {
lock.writeLock().unlock();
getPostsFrom(sone.getId()).clear();
for (Post post : sone.getPosts()) {
allPosts.remove(post.getId());
- if (post.getRecipientId().isPresent()) {
- getPostsTo(post.getRecipientId().get()).remove(post);
- }
}
} finally {
lock.writeLock().unlock();
/** {@inheritDocs} */
@Override
- public List<PostReply> getReplies(String postId) {
+ public List<PostReply> getReplies(final String postId) {
lock.readLock().lock();
try {
- if (!postReplies.containsKey(postId)) {
- return Collections.emptyList();
- }
- return new ArrayList<PostReply>(postReplies.get(postId));
+ return from(allPostReplies.values())
+ .filter(new Predicate<PostReply>() {
+ @Override
+ public boolean apply(PostReply postReply) {
+ return postReply.getPostId().equals(postId);
+ }
+ }).toSortedList(TIME_COMPARATOR);
} finally {
lock.readLock().unlock();
}
lock.writeLock().lock();
try {
allPostReplies.put(postReply.getId(), postReply);
- if (postReplies.containsKey(postReply.getPostId())) {
- postReplies.get(postReply.getPostId()).add(postReply);
- } else {
- TreeSet<PostReply> replies = new TreeSet<PostReply>(Reply.TIME_COMPARATOR);
- replies.add(postReply);
- postReplies.put(postReply.getPostId(), replies);
- }
} finally {
lock.writeLock().unlock();
}
for (PostReply postReply : postReplies) {
allPostReplies.put(postReply.getId(), postReply);
sonePostReplies.put(postReply.getSone().getId(), postReply);
- if (this.postReplies.containsKey(postReply.getPostId())) {
- this.postReplies.get(postReply.getPostId()).add(postReply);
- } else {
- TreeSet<PostReply> replies = new TreeSet<PostReply>(Reply.TIME_COMPARATOR);
- replies.add(postReply);
- this.postReplies.put(postReply.getPostId(), replies);
- }
}
} finally {
lock.writeLock().unlock();
lock.writeLock().lock();
try {
allPostReplies.remove(postReply.getId());
- if (postReplies.containsKey(postReply.getPostId())) {
- postReplies.get(postReply.getPostId()).remove(postReply);
- if (postReplies.get(postReply.getPostId()).isEmpty()) {
- postReplies.remove(postReply.getPostId());
- }
- }
} finally {
lock.writeLock().unlock();
}
lock.writeLock().lock();
try {
allAlbums.put(album.getId(), album);
+ soneAlbums.put(album.getSone().getId(), album);
} finally {
lock.writeLock().unlock();
}
lock.writeLock().lock();
try {
allAlbums.remove(album.getId());
+ soneAlbums.remove(album.getSone().getId(), album);
} finally {
lock.writeLock().unlock();
}
lock.writeLock().lock();
try {
allImages.put(image.getId(), image);
+ soneImages.put(image.getSone().getId(), image);
} finally {
lock.writeLock().unlock();
}
lock.writeLock().lock();
try {
allImages.remove(image.getId());
+ soneImages.remove(image.getSone().getId(), image);
} finally {
lock.writeLock().unlock();
}
}
}
- /**
- * Gets all posts that are directed the given Sone, creating a new collection
- * if there is none yet.
- *
- * @param recipientId
- * The ID of the Sone to get the posts for
- * @return All posts
- */
- private Collection<Post> getPostsTo(String recipientId) {
- Collection<Post> posts = null;
- lock.readLock().lock();
- try {
- posts = recipientPosts.get(recipientId);
- } finally {
- lock.readLock().unlock();
- }
- if (posts != null) {
- return posts;
- }
-
- posts = new HashSet<Post>();
- lock.writeLock().lock();
- try {
- recipientPosts.put(recipientId, posts);
- } finally {
- lock.writeLock().unlock();
- }
-
- return posts;
- }
-
/** Loads the known posts. */
private void loadKnownPosts() {
lock.writeLock().lock();
private Collection<PostReply> getRepliesFrom(String id) {
lock.readLock().lock();
try {
- if (sonePostReplies.containsKey(id)) {
- return Collections.unmodifiableCollection(sonePostReplies.get(id));
- }
- return Collections.emptySet();
+ return unmodifiableCollection(sonePostReplies.get(id));
} finally {
lock.readLock().unlock();
}
projects / Sone.git / blobdiff