package net.pterodactylus.sone.notify;
-import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.collect.FluentIterable.from;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
+import javax.annotation.Nonnull;
+import javax.inject.Inject;
+import javax.inject.Singleton;
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.freenet.wot.OwnIdentity;
-import net.pterodactylus.sone.freenet.wot.Trust;
import net.pterodactylus.util.notify.Notification;
import com.google.common.base.Optional;
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
+@Singleton
public class ListNotificationFilters {
+ private final PostVisibilityFilter postVisibilityFilter;
+ private final ReplyVisibilityFilter replyVisibilityFilter;
+
+ @Inject
+ public ListNotificationFilters(@Nonnull PostVisibilityFilter postVisibilityFilter, @Nonnull ReplyVisibilityFilter replyVisibilityFilter) {
+ this.postVisibilityFilter = postVisibilityFilter;
+ this.replyVisibilityFilter = replyVisibilityFilter;
+ }
+
/**
* Filters new-post and new-reply notifications in the given list of
* notifications. If {@code currentSone} is <code>null</code>, new-post and
* itself will be retained in the notifications.
*
* @param notifications
- * The notifications to filter
+ * The notifications to filter
* @param currentSone
- * The current Sone, or {@code null} if not logged in
+ * The current Sone, or {@code null} if not logged in
* @return The filtered notifications
*/
@SuppressWarnings("unchecked")
- public static List<Notification> filterNotifications(Collection<? extends Notification> notifications, Sone currentSone) {
+ public List<Notification> filterNotifications(Collection<? extends Notification> notifications, Sone currentSone) {
List<Notification> filteredNotifications = new ArrayList<Notification>();
for (Notification notification : notifications) {
if (notification.getId().equals("new-sone-notification")) {
}
filteredNotifications.add(notification);
} else if (notification.getId().equals("new-post-notification")) {
- if ((currentSone != null) && !currentSone.getOptions().isShowNewPostNotifications()) {
+ if (currentSone == null) {
continue;
}
- Optional<ListNotification<Post>> filteredNotification = filterNewPostNotification((ListNotification<Post>) notification, currentSone, true);
+ if (!currentSone.getOptions().isShowNewPostNotifications()) {
+ continue;
+ }
+ Optional<ListNotification<Post>> filteredNotification = filterNewPostNotification((ListNotification<Post>) notification, currentSone);
if (filteredNotification.isPresent()) {
filteredNotifications.add(filteredNotification.get());
}
} else if (notification.getId().equals("new-reply-notification")) {
- if ((currentSone != null) && !currentSone.getOptions().isShowNewReplyNotifications()) {
+ if (currentSone == null) {
continue;
}
- Optional<ListNotification<PostReply>> filteredNotification = filterNewReplyNotification((ListNotification<PostReply>) notification, currentSone);
+ if (!currentSone.getOptions().isShowNewReplyNotifications()) {
+ continue;
+ }
+ Optional<ListNotification<PostReply>> filteredNotification =
+ filterNewReplyNotification((ListNotification<PostReply>) notification, currentSone);
if (filteredNotification.isPresent()) {
filteredNotifications.add(filteredNotification.get());
}
} else if (notification.getId().equals("mention-notification")) {
- Optional<ListNotification<Post>> filteredNotification = filterNewPostNotification((ListNotification<Post>) notification, null, false);
+ Optional<ListNotification<Post>> filteredNotification = filterNewPostNotification((ListNotification<Post>) notification, null);
if (filteredNotification.isPresent()) {
filteredNotifications.add(filteredNotification.get());
}
* other posts are removed.
*
* @param newPostNotification
- * The new-post notification
+ * The new-post notification
* @param currentSone
- * The current Sone, or {@code null} if not logged in
- * @param soneRequired
- * Whether a non-{@code null} Sone in {@code currentSone} is
- * required
+ * The current Sone, or {@code null} if not logged in
* @return The filtered new-post notification, or {@code null} if the
- * notification should be removed
+ * notification should be removed
*/
- private static Optional<ListNotification<Post>> filterNewPostNotification(ListNotification<Post> newPostNotification, Sone currentSone, boolean soneRequired) {
- if (soneRequired && (currentSone == null)) {
- return Optional.absent();
- }
- List<Post> newPosts = new ArrayList<Post>();
- for (Post post : newPostNotification.getElements()) {
- if (isPostVisible(currentSone, post)) {
- newPosts.add(post);
- }
- }
+ @Nonnull
+ private Optional<ListNotification<Post>> filterNewPostNotification(@Nonnull ListNotification<Post> newPostNotification,
+ @Nonnull Sone currentSone) {
+ List<Post> newPosts = from(newPostNotification.getElements()).filter(postVisibilityFilter.isVisible(currentSone)).toList();
if (newPosts.isEmpty()) {
return Optional.absent();
}
* replies are removed.
*
* @param newReplyNotification
- * The new-reply notification
+ * The new-reply notification
* @param currentSone
- * The current Sone, or {@code null} if not logged in
+ * The current Sone, or {@code null} if not logged in
* @return The filtered new-reply notification, or {@code null} if the
- * notification should be removed
+ * notification should be removed
*/
- private static Optional<ListNotification<PostReply>> filterNewReplyNotification(ListNotification<PostReply> newReplyNotification, Sone currentSone) {
- if (currentSone == null) {
- return Optional.absent();
- }
- List<PostReply> newReplies = new ArrayList<PostReply>();
- for (PostReply reply : newReplyNotification.getElements()) {
- if (isReplyVisible(currentSone, reply)) {
- newReplies.add(reply);
- }
- }
+ private Optional<ListNotification<PostReply>> filterNewReplyNotification(ListNotification<PostReply> newReplyNotification,
+ @Nonnull Sone currentSone) {
+ List<PostReply> newReplies = from(newReplyNotification.getElements()).filter(replyVisibilityFilter.isVisible(currentSone)).toList();
if (newReplies.isEmpty()) {
return Optional.absent();
}
return Optional.of(filteredNotification);
}
- /**
- * Filters the given posts, using {@link #isPostVisible(Sone, Post)} to
- * decide whether a post should be contained in the returned list. If
- * {@code currentSone} is not {@code null} it is used to filter out posts
- * that are from Sones that are not followed or not trusted by the given
- * Sone.
- *
- * @param posts
- * The posts to filter
- * @param currentSone
- * The current Sone (may be {@code null})
- * @return The filtered posts
- */
- public static List<Post> filterPosts(Collection<Post> posts, Sone currentSone) {
- List<Post> filteredPosts = new ArrayList<Post>();
- for (Post post : posts) {
- if (isPostVisible(currentSone, post)) {
- filteredPosts.add(post);
- }
- }
- return filteredPosts;
- }
-
- /**
- * Checks whether a post is visible to the given Sone. A post is not
- * considered visible if one of the following statements is true:
- * <ul>
- * <li>The post does not have a Sone.</li>
- * <li>The post’s {@link Post#getTime() time} is in the future.</li>
- * </ul>
- * <p>
- * If {@code post} is not {@code null} more checks are performed, and the
- * post will be invisible if:
- * </p>
- * <ul>
- * <li>The Sone of the post is not the given Sone, the given Sone does not
- * follow the post’s Sone, and the given Sone is not the recipient of the
- * post.</li>
- * <li>The trust relationship between the two Sones can not be retrieved.</li>
- * <li>The given Sone has explicitely assigned negative trust to the post’s
- * Sone.</li>
- * <li>The given Sone has not explicitely assigned negative trust to the
- * post’s Sone but the implicit trust is negative.</li>
- * </ul>
- * If none of these statements is true the post is considered visible.
- *
- * @param sone
- * The Sone that checks for a post’s visibility (may be
- * {@code null} to skip Sone-specific checks, such as trust)
- * @param post
- * The post to check for visibility
- * @return {@code true} if the post is considered visible, {@code false}
- * otherwise
- */
- public static boolean isPostVisible(Sone sone, Post post) {
- checkNotNull(post, "post must not be null");
- if (!post.isLoaded()) {
- return false;
- }
- Sone postSone = post.getSone();
- if (sone != null) {
- Trust trust = postSone.getIdentity().getTrust((OwnIdentity) sone.getIdentity());
- if (trust != null) {
- if ((trust.getExplicit() != null) && (trust.getExplicit() < 0)) {
- return false;
- }
- if ((trust.getExplicit() == null) && (trust.getImplicit() != null) && (trust.getImplicit() < 0)) {
- return false;
- }
- } else {
- /*
- * a null trust means that the trust updater has not yet
- * received a trust value for this relation. if we return false,
- * the post feed will stay empty until the trust updater has
- * received trust values. to prevent this we simply assume that
- * posts are visible if there is no trust.
- */
- }
- if ((!postSone.equals(sone)) && !sone.hasFriend(postSone.getId()) && !sone.getId().equals(post.getRecipientId().orNull())) {
- return false;
- }
- }
- return post.getTime() <= System.currentTimeMillis();
- }
-
- /**
- * Checks whether a reply is visible to the given Sone. A reply is not
- * considered visible if one of the following statements is true:
- * <ul>
- * <li>The reply does not have a post.</li>
- * <li>The reply’s post does not have a Sone.</li>
- * <li>The Sone of the reply’s post is not the given Sone, the given Sone
- * does not follow the reply’s post’s Sone, and the given Sone is not the
- * recipient of the reply’s post.</li>
- * <li>The trust relationship between the two Sones can not be retrieved.</li>
- * <li>The given Sone has explicitely assigned negative trust to the post’s
- * Sone.</li>
- * <li>The given Sone has not explicitely assigned negative trust to the
- * reply’s post’s Sone but the implicit trust is negative.</li>
- * <li>The reply’s post’s {@link Post#getTime() time} is in the future.</li>
- * <li>The reply’s {@link Reply#getTime() time} is in the future.</li>
- * </ul>
- * If none of these statements is true the reply is considered visible.
- *
- * @param sone
- * The Sone that checks for a post’s visibility (may be
- * {@code null} to skip Sone-specific checks, such as trust)
- * @param reply
- * The reply to check for visibility
- * @return {@code true} if the reply is considered visible, {@code false}
- * otherwise
- */
- public static boolean isReplyVisible(Sone sone, PostReply reply) {
- checkNotNull(reply, "reply must not be null");
- Optional<Post> post = reply.getPost();
- if (!post.isPresent()) {
- return false;
- }
- if (!isPostVisible(sone, post.get())) {
- return false;
- }
- return reply.getTime() <= System.currentTimeMillis();
- }
-
}
projects / Sone.git / blobdiff