From 192a3f41bcbf99fdb42213dc2680f9061ff64c40 Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Mon, 20 Jun 2011 07:52:43 +0200
Subject: [PATCH] Add last activity comparator.

---
 src/main/java/net/pterodactylus/sone/data/Sone.java | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/main/java/net/pterodactylus/sone/data/Sone.java b/src/main/java/net/pterodactylus/sone/data/Sone.java
index e1c0391..ca87856 100644
--- a/src/main/java/net/pterodactylus/sone/data/Sone.java
+++ b/src/main/java/net/pterodactylus/sone/data/Sone.java
@@ -60,6 +60,17 @@ public class Sone implements Fingerprintable, Comparable<Sone> {
 
 	};
 
+	/**
+	 * Comparator that sorts Sones by last activity (least recent active first).
+	 */
+	public static final Comparator<Sone> LAST_ACTIVITY_COMPARATOR = new Comparator<Sone>() {
+
+		@Override
+		public int compare(Sone firstSone, Sone secondSone) {
+			return (int) Math.min(Integer.MAX_VALUE, Math.max(Integer.MIN_VALUE, secondSone.getTime() - firstSone.getTime()));
+		}
+	};
+
 	/** Filter to remove Sones that have not been downloaded. */
 	public static final Filter<Sone> EMPTY_SONE_FILTER = new Filter<Sone>() {
 
-- 
2.7.4