From db7e9612fa189cee9f4b9086e00d87c4d6c58bbf Mon Sep 17 00:00:00 2001
From: =?utf8?q?David=20=E2=80=98Bombe=E2=80=99=20Roden?=
 <bombe@pterodactylus.net>
Date: Thu, 18 Apr 2013 06:10:43 +0200
Subject: [PATCH] Override hashCode() and equals().

---
 src/main/java/net/pterodactylus/xdcc/data/Bot.java | 25 ++++++++++++++++++---
 .../java/net/pterodactylus/xdcc/data/Download.java | 24 ++++++++++++++++++--
 .../java/net/pterodactylus/xdcc/data/Pack.java     | 26 +++++++++++++++++++---
 3 files changed, 67 insertions(+), 8 deletions(-)

diff --git a/src/main/java/net/pterodactylus/xdcc/data/Bot.java b/src/main/java/net/pterodactylus/xdcc/data/Bot.java
index 724f0e0..96d91b6 100644
--- a/src/main/java/net/pterodactylus/xdcc/data/Bot.java
+++ b/src/main/java/net/pterodactylus/xdcc/data/Bot.java
@@ -17,6 +17,8 @@
 
 package net.pterodactylus.xdcc.data;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.Map;
@@ -45,9 +47,12 @@ public class Bot implements Iterable<Pack> {
 	 *
 	 * @param network
 	 * 		The network the bot is on
+	 * @param name
+	 * 		The name of the bot
 	 */
-	public Bot(Network network) {
-		this.network = network;
+	public Bot(Network network, String name) {
+		this.network = checkNotNull(network, "network must not be null");
+		this.name = checkNotNull(name, "name must not be null");
 	}
 
 	//
@@ -93,7 +98,7 @@ public class Bot implements Iterable<Pack> {
 	 * @return This bot
 	 */
 	public Bot name(String name) {
-		this.name = name;
+		this.name = checkNotNull(name, "name must not be null");
 		return this;
 	}
 
@@ -125,6 +130,20 @@ public class Bot implements Iterable<Pack> {
 	//
 
 	@Override
+	public boolean equals(Object object) {
+		if (!(object instanceof Bot)) {
+			return false;
+		}
+		Bot bot = (Bot) object;
+		return network().equals(bot.network()) && name().equals(bot.name());
+	}
+
+	@Override
+	public int hashCode() {
+		return network().hashCode() ^ name().hashCode();
+	}
+
+	@Override
 	public String toString() {
 		return String.format("%s/%s", name(), network().name());
 	}
diff --git a/src/main/java/net/pterodactylus/xdcc/data/Download.java b/src/main/java/net/pterodactylus/xdcc/data/Download.java
index 5190ed0..0592eaf 100644
--- a/src/main/java/net/pterodactylus/xdcc/data/Download.java
+++ b/src/main/java/net/pterodactylus/xdcc/data/Download.java
@@ -17,6 +17,8 @@
 
 package net.pterodactylus.xdcc.data;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 import java.io.OutputStream;
 import java.net.InetAddress;
 
@@ -59,8 +61,8 @@ public class Download {
 	 * 		The pack being downloaded
 	 */
 	public Download(Bot bot, Pack pack) {
-		this.bot = bot;
-		this.pack = pack;
+		this.bot = checkNotNull(bot, "bot must not be null");
+		this.pack = checkNotNull(pack, "pack must not be null");
 	}
 
 	//
@@ -194,4 +196,22 @@ public class Download {
 		return this;
 	}
 
+	//
+	// OBJECT METHODS
+	//
+
+	@Override
+	public boolean equals(Object object) {
+		if (!(object instanceof Download)) {
+			return false;
+		}
+		Download download = (Download) object;
+		return bot().equals(download.bot()) && pack().equals(download.pack());
+	}
+
+	@Override
+	public int hashCode() {
+		return bot().hashCode() ^ pack().hashCode();
+	}
+
 }
diff --git a/src/main/java/net/pterodactylus/xdcc/data/Pack.java b/src/main/java/net/pterodactylus/xdcc/data/Pack.java
index 1ec5a09..c41694f 100644
--- a/src/main/java/net/pterodactylus/xdcc/data/Pack.java
+++ b/src/main/java/net/pterodactylus/xdcc/data/Pack.java
@@ -17,6 +17,8 @@
 
 package net.pterodactylus.xdcc.data;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 /**
  * A pack is a downloadable file offered by a {@link Bot}.
  *
@@ -44,9 +46,9 @@ public class Pack {
 	 * 		The name of the pack
 	 */
 	public Pack(String id, String size, String name) {
-		this.id = id;
-		this.size = size;
-		this.name = name;
+		this.id = checkNotNull(id, "id must not be null");
+		this.size = checkNotNull(size, "size must not be null");
+		this.name = checkNotNull(name, "name must not be null");
 	}
 
 	//
@@ -83,4 +85,22 @@ public class Pack {
 		return name;
 	}
 
+	//
+	// OBJECT METHODS
+	//
+
+	@Override
+	public boolean equals(Object object) {
+		if (!(object instanceof Pack)) {
+			return false;
+		}
+		Pack pack = (Pack) object;
+		return id().equals(pack.id()) && name().equals(pack.name());
+	}
+
+	@Override
+	public int hashCode() {
+		return id().hashCode() ^ name().hashCode();
+	}
+
 }
-- 
2.7.4