Add method to filter a list of posts.

[Sone.git] / src / main / java / net / pterodactylus / sone / notify / ListNotificationFilters.java

diff --git a/src/main/java/net/pterodactylus/sone/notify/ListNotificationFilters.java b/src/main/java/net/pterodactylus/sone/notify/ListNotificationFilters.java
index 7b9eb49..c7b888f 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/notify/ListNotificationFilters.java
+++ b/src/main/java/net/pterodactylus/sone/notify/ListNotificationFilters.java
@@ -164,6 +164,29 @@ public class ListNotificationFilters {
        }
 
        /**
+        * 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>