Add new post notification.

diff --git a/src/main/java/net/pterodactylus/sone/notify/NewPostNotification.java b/src/main/java/net/pterodactylus/sone/notify/NewPostNotification.java
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+++ b/src/main/java/net/pterodactylus/sone/notify/NewPostNotification.java
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+/*
+ * Sone - NewPostNotification.java - Copyright © 2010 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.notify;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import net.pterodactylus.sone.data.Post;
+import net.pterodactylus.util.notify.TemplateNotification;
+import net.pterodactylus.util.template.Template;
+
+/**
+ * Notification that signals that new {@link Post}s have been discovered.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class NewPostNotification extends TemplateNotification {
+
+       /** The new posts. */
+       private List<Post> newPosts = Collections.synchronizedList(new ArrayList<Post>());
+
+       /**
+        * Creates a new “new post discovered” notification.
+        *
+        * @param template
+        *            The template to render
+        */
+       public NewPostNotification(Template template) {
+               super(template);
+               template.set("posts", newPosts);
+       }
+
+       //
+       // ACCESSORS
+       //
+
+       /**
+        * Returns whether there are any new posts.
+        *
+        * @return {@code true} if there are no new posts, {@code false} if there
+        *         are new posts
+        */
+       public boolean isEmpty() {
+               return newPosts.isEmpty();
+       }
+
+       /**
+        * Adds a discovered post.
+        *
+        * @param post
+        *            The new post
+        */
+       public void addPost(Post post) {
+               newPosts.add(post);
+               touch();
+       }
+
+       /**
+        * Removes the given post from the list of new posts.
+        *
+        * @param post
+        *            The post to remove
+        */
+       public void removePost(Post post) {
+               newPosts.remove(post);
+               touch();
+       }
+
+       //
+       // ABSTRACTNOTIFICATION METHODS
+       //
+
+       /**
+        * {@inheritDoc}
+        */
+       @Override
+       public void dismiss() {
+               super.dismiss();
+               newPosts.clear();
+       }
+
+}