From: David ‘Bombe’ Roden <bombe@pterodactylus.net>
Date: Mon, 30 Jul 2012 08:56:18 +0000 (+0200)
Subject: Add comparator that sorts by parties by name and year.
X-Git-Url: https://git.pterodactylus.net/?p=demoscenemusic.git;a=commitdiff_plain;h=01aeae3f0e571924efcdc5156497a78874b4bdeb

Add comparator that sorts by parties by name and year.
---

diff --git a/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultParty.java b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultParty.java
index 1b3ace4..f621d4d 100644
--- a/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultParty.java
+++ b/src/main/java/net/pterodactylus/demoscenemusic/data/DefaultParty.java
@@ -18,6 +18,10 @@
 package net.pterodactylus.demoscenemusic.data;
 
 import java.util.Collection;
+import java.util.Comparator;
+
+import net.pterodactylus.util.number.Numbers;
+
 /**
  * Default implementation of a party data container.
  *
@@ -25,6 +29,23 @@ import java.util.Collection;
  */
 public class DefaultParty extends DefaultBase implements Party {
 
+	/** Comparator that sorts parties by name and descending year. */
+	public static final Comparator<Party> NAME_YEAR_COMPARATOR = new Comparator<Party>() {
+
+		@Override
+		public int compare(Party leftParty, Party rightParty) {
+			int diff = leftParty.getName().compareToIgnoreCase(rightParty.getName());
+			if (diff != 0) {
+				return diff;
+			}
+			int leftYear = Numbers.safeParseInteger(leftParty.getProperties().get("party/year"), 0);
+			int rightYear = Numbers.safeParseInteger(rightParty.getProperties().get("party/year"), 0);
+			/* show newest parties first. */
+			return rightYear - leftYear;
+		}
+
+	};
+
 	/**
 	 * Creates a new party data container.
 	 *