/*
- * Sone - ListNotificationFilters.java - Copyright © 2010 David Roden
+ * Sone - ListNotificationFilters.java - Copyright © 2010–2012 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
}
/**
+ * 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>
return false;
}
} else {
- return false;
+ /*
+ * 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.
+ */
+ return true;
}
if ((!postSone.equals(sone)) && !sone.hasFriend(postSone.getId()) && !sone.equals(post.getRecipient())) {
return false;