Add time comparator.

diff --git a/src/main/java/net/pterodactylus/sone/data/Reply.java b/src/main/java/net/pterodactylus/sone/data/Reply.java
index 05d8049..a106391 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Reply.java
+++ b/src/main/java/net/pterodactylus/sone/data/Reply.java
@@ -17,6 +17,7 @@
 
 package net.pterodactylus.sone.data;
 
+import java.util.Comparator;
 import java.util.UUID;
 
 /**
@@ -27,6 +28,16 @@ import java.util.UUID;
  */
 public class Reply {
 
+       /** Comparator that sorts replies ascending by time. */
+       public static final Comparator<Reply> TIME_COMPARATOR = new Comparator<Reply>() {
+
+               @Override
+               public int compare(Reply leftReply, Reply rightReply) {
+                       return (int) Math.max(Integer.MIN_VALUE, Math.min(Integer.MAX_VALUE, leftReply.getTime() - rightReply.getTime()));
+               }
+
+       };
+
        /** The ID of the reply. */
        private final UUID id;