From 6ca0abc74aabbbf0ff5a436070fe80e6686b1a3c Mon Sep 17 00:00:00 2001
From: Pepich <benedikt.abel@yahoo.de>
Date: Fri, 5 May 2017 09:44:03 +0200
Subject: Added functionality to unregister commands

---
 src/main/java/com/nemez/cmdmgr/CommandManager.java | 28 ++++++++++++++++++++++
 src/main/java/com/nemez/cmdmgr/EmptyCommand.java   | 20 ++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 src/main/java/com/nemez/cmdmgr/EmptyCommand.java

diff --git a/src/main/java/com/nemez/cmdmgr/CommandManager.java b/src/main/java/com/nemez/cmdmgr/CommandManager.java
index 59d8629..da83aca 100644
--- a/src/main/java/com/nemez/cmdmgr/CommandManager.java
+++ b/src/main/java/com/nemez/cmdmgr/CommandManager.java
@@ -6,11 +6,16 @@ import java.io.File;
 import java.io.FileReader;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
 import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.logging.Level;
 
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandMap;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import com.nemez.cmdmgr.component.ArgumentComponent;
@@ -103,6 +108,7 @@ public class CommandManager {
 	
 	/* List of all commands that can be invoked async */
 	public static ArrayList<Executable> asyncExecutables = new ArrayList<Executable>();
+	public static HashMap<Object, ArrayList<String>> commands = new HashMap<Object, ArrayList<String>>();
 	/*  */
 	
 	/**
@@ -182,6 +188,28 @@ public class CommandManager {
 		return registerCommand(src.toString(), commandHandler, plugin);
 	}
 	
+
+	public static void unregisterAll(String[] commands)
+	{
+		for (String name : commands)
+		{
+			EmptyCommand emptyCommand = new EmptyCommand(name);
+			try {
+				final Field cmdMap = Bukkit.getServer().getClass().getDeclaredField("commandMap");
+				cmdMap.setAccessible(true);
+				CommandMap map = (CommandMap) cmdMap.get(Bukkit.getServer());
+				final Field knownCommandsField = map.getClass().getDeclaredField("knownCommands");
+				knownCommandsField.setAccessible(true);
+				@SuppressWarnings("unchecked")
+				Map<String, Command> knownCommands = (Map<String, Command>) knownCommandsField.get(map);
+				knownCommands.remove(name);
+				map.register(name, emptyCommand);
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
+		}
+	}
+	
 	/**
 	 * Parses the source code into an abstract command syntax
 	 * 
diff --git a/src/main/java/com/nemez/cmdmgr/EmptyCommand.java b/src/main/java/com/nemez/cmdmgr/EmptyCommand.java
new file mode 100644
index 0000000..8a29527
--- /dev/null
+++ b/src/main/java/com/nemez/cmdmgr/EmptyCommand.java
@@ -0,0 +1,20 @@
+package com.nemez.cmdmgr;
+
+import org.bukkit.command.CommandSender;
+
+import com.nemez.cmdmgr.util.Executable;
+
+public class EmptyCommand extends Executable
+{
+	public EmptyCommand(String name)
+	{
+		super(name, null);
+	}
+	
+	@Override
+	public boolean execute(CommandSender sender, String name, String[] args_)
+	{
+		sender.sendMessage("§cUnknown command. Use §e/help§c, §e/plugins§c or ask a mod.");
+		return true;
+	}
+}
-- 
cgit v1.2.3