package net.pterodactylus.sone.database.memory;
-import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.*;
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.Set;
import java.util.SortedSet;
import java.util.TreeSet;
-import java.util.UUID;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import net.pterodactylus.sone.data.PostReply;
import net.pterodactylus.sone.data.Reply;
import net.pterodactylus.sone.data.Sone;
-import net.pterodactylus.sone.data.impl.AbstractPostReplyBuilder;
import net.pterodactylus.sone.database.Database;
import net.pterodactylus.sone.database.DatabaseException;
import net.pterodactylus.sone.database.PostBuilder;
import net.pterodactylus.util.config.ConfigurationException;
import com.google.common.base.Optional;
+import com.google.common.collect.SortedSetMultimap;
+import com.google.common.collect.TreeMultimap;
import com.google.common.util.concurrent.AbstractService;
import com.google.inject.Inject;
/** All post replies by their ID. */
private final Map<String, PostReply> allPostReplies = new HashMap<String, PostReply>();
+ /** Replies sorted by Sone. */
+ private final SortedSetMultimap<String, PostReply> sonePostReplies = TreeMultimap.create(new Comparator<String>() {
+
+ @Override
+ 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>>();
* Creates a new memory database.
*
* @param soneProvider
- * The Sone provider
+ * The Sone provider
* @param configuration
- * The configuration for loading and saving elements
+ * The configuration for loading and saving elements
*/
@Inject
public MemoryDatabase(SoneProvider soneProvider, Configuration configuration) {
* Saves the database.
*
* @throws DatabaseException
- * if an error occurs while saving
+ * if an error occurs while saving
*/
@Override
public void save() throws DatabaseException {
// SERVICE METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
protected void doStart() {
loadKnownPosts();
notifyStarted();
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
protected void doStop() {
try {
// POSTPROVIDER METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public Optional<Post> getPost(String postId) {
lock.readLock().lock();
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public Collection<Post> getPosts(String soneId) {
return new HashSet<Post>(getPostsFrom(soneId));
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public Collection<Post> getDirectedPosts(String recipientId) {
lock.readLock().lock();
try {
Collection<Post> posts = recipientPosts.get(recipientId);
- return (posts == null) ? Collections.<Post>
emptySet() : new HashSet<Post>(posts);
+ return (posts == null) ? Collections.<Post>emptySet() : new HashSet<Post>(posts);
} finally {
lock.readLock().unlock();
}
// POSTBUILDERFACTORY METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public PostBuilder newPostBuilder() {
return new MemoryPostBuilder(this, soneProvider);
// POSTSTORE METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void storePost(Post post) {
checkNotNull(post, "post must not be null");
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void removePost(Post post) {
checkNotNull(post, "post must not be null");
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void storePosts(Sone sone, Collection<Post> posts) throws IllegalArgumentException {
checkNotNull(sone, "sone must not be null");
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void removePosts(Sone sone) {
checkNotNull(sone, "sone must not be null");
// POSTREPLYPROVIDER METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public Optional<PostReply> getPostReply(String id) {
lock.readLock().lock();
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public List<PostReply> getReplies(String postId) {
lock.readLock().lock();
// POSTREPLYBUILDERFACTORY METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public PostReplyBuilder newPostReplyBuilder() {
- return new MemoryPostReplyBuilder();
+ return new MemoryPostReplyBuilder(this, soneProvider);
}
//
// POSTREPLYSTORE METHODS
//
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void storePostReply(PostReply postReply) {
lock.writeLock().lock();
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void storePostReplies(Sone sone, Collection<PostReply> postReplies) {
checkNotNull(sone, "sone must not be null");
lock.writeLock().lock();
try {
+ /* remove all post replies of the Sone. */
+ for (PostReply postReply : getRepliesFrom(sone.getId())) {
+ removePostReply(postReply);
+ }
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 {
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void removePostReply(PostReply postReply) {
lock.writeLock().lock();
}
}
- /**
- * {@inheritDocs}
- */
+ /** {@inheritDocs} */
@Override
public void removePostReplies(Sone sone) {
checkNotNull(sone, "sone must not be null");
* Returns whether the given post is known.
*
* @param post
- * The post
+ * The post
* @return {@code true} if the post is known, {@code false} otherwise
*/
boolean isPostKnown(Post post) {
* Sets whether the given post is known.
*
* @param post
- * The post
+ * The post
* @param known
- * {@code true} if the post is known, {@code false} otherwise
+ * {@code true} if the post is known, {@code false} otherwise
*/
void setPostKnown(Post post, boolean known) {
lock.writeLock().lock();
* Returns whether the given post reply is known.
*
* @param postReply
- * The post reply
+ * The post reply
* @return {@code true} if the given post reply is known, {@code false}
* otherwise
*/
* Sets whether the given post reply is known.
*
* @param postReply
- * The post reply
+ * The post reply
* @param known
- * {@code true} if the post reply is known, {@code false}
- * otherwise
+ * {@code true} if the post reply is known, {@code false} otherwise
*/
void setPostReplyKnown(PostReply postReply, boolean known) {
lock.writeLock().lock();
* none yet.
*
* @param soneId
- * The ID of the Sone to get the posts for
+ * The ID of the Sone to get the posts for
* @return All posts
*/
private Collection<Post> getPostsFrom(String soneId) {
}
/**
- * Gets all posts that are directed the given Sone, creating a new
- * collection if there is none yet.
+ * 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
+ * The ID of the Sone to get the posts for
* @return All posts
*/
private Collection<Post> getPostsTo(String recipientId) {
return posts;
}
- /**
- * Loads the known posts.
- */
+ /** Loads the known posts. */
private void loadKnownPosts() {
lock.writeLock().lock();
try {
* Saves the known posts to the configuration.
*
* @throws DatabaseException
- * if a configuration error occurs
+ * if a configuration error occurs
*/
private void saveKnownPosts() throws DatabaseException {
lock.readLock().lock();
}
/**
- * Loads the known post replies.
+ * Returns all replies by the given Sone.
+ *
+ * @param id
+ * The ID of the Sone
+ * @return The post replies of the Sone, sorted by time (newest first)
*/
+ private Collection<PostReply> getRepliesFrom(String id) {
+ lock.readLock().lock();
+ try {
+ if (sonePostReplies.containsKey(id)) {
+ return Collections.unmodifiableCollection(sonePostReplies.get(id));
+ }
+ return Collections.emptySet();
+ } finally {
+ lock.readLock().unlock();
+ }
+ }
+
+ /** Loads the known post replies. */
private void loadKnownPostReplies() {
lock.writeLock().lock();
try {
* Saves the known post replies to the configuration.
*
* @throws DatabaseException
- * if a configuration error occurs
+ * if a configuration error occurs
*/
private void saveKnownPostReplies() throws DatabaseException {
lock.readLock().lock();
}
}
- /**
- * {@link PostReplyBuilder} implementation that creates
- * {@link MemoryPostReply} objects.
- *
- * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
- */
- private class MemoryPostReplyBuilder extends AbstractPostReplyBuilder {
-
- /**
- * {@inheritDocs}
- */
- @Override
- public PostReply build() throws IllegalStateException {
- validate();
-
- PostReply postReply = new MemoryPostReply(MemoryDatabase.this, soneProvider, randomId ? UUID.randomUUID().toString() : id, senderId, currentTime ? System.currentTimeMillis() : time, text, postId);
- postReply.setKnown(isPostReplyKnown(postReply));
- return postReply;
- }
-
- }
-
}
projects / Sone.git / blobdiff