I Forgot How To Add Perms. Help

I Forgot How To Add Perms. Umm Can Someone Look At This And Tell Me How?

Code:

package com.markcraft.prisonplugins;

import java.util.logging.Logger;

import org.bukkit.ChatColor;
import org.bukkit.GameMode;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.plugin.java.JavaPlugin;

public class ChangeGameMode extends JavaPlugin {
    public static ChangeGameMode plugin;
    public final Logger logger = Logger.getLogger("Minecraft");

    @Override
    public void onEnable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + "version" + pdfFile.getVersion()
                + "is enabled.");
    }

    @Override
    public void onDisable() {
        PluginDescriptionFile pdfFile = this.getDescription();
        this.logger.info(pdfFile.getName() + "version" + pdfFile.getVersion()
                + "is disabled.");
    }

    public boolean onCommand(CommandSender sender, Command cmd, String label,
            String[] args) {
        readCommand((Player) sender, label);
        return false;
    }

    public void readCommand(Player player, String command) {
        if (command.equalsIgnoreCase("creative")) {
            player.setGameMode(GameMode.CREATIVE);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Creative Mode");
        } else if (command.equalsIgnoreCase("survival")) {
            player.setGameMode(GameMode.SURVIVAL);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Survival Mode");
        } else if (command.equalsIgnoreCase("adventure")) {
            player.setGameMode(GameMode.ADVENTURE);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Adventure Mode");
        } else if (command.equalsIgnoreCase("gma")) {
            player.setGameMode(GameMode.ADVENTURE);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Adventure Mode");
        } else if (command.equalsIgnoreCase("gms")) {
            player.setGameMode(GameMode.SURVIVAL);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Survival Mode");
        } else if (command.equalsIgnoreCase("gmc")) {
            player.setGameMode(GameMode.CREATIVE);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Adventure Mode");
        }
    }
}

 

Code issues:
1. No need for logger
2. Check if sender is an instanceof Player
3. Don't use label use cmd.getName()
4. Why oh why have you got a method? It is just more text, I don't get why you have done it.

Answer to your question:
player#hasPermission(String)

 

For example:

Code:java

else if (command.equalsIgnoreCase("gma") && player.hasPermission("pluginname.gma") {
            player.setGameMode(GameMode.ADVENTURE);
            player.sendMessage(ChatColor.RED
                    + "Your Gamemode Has Been Changed To " + ChatColor.GOLD
                    + ChatColor.BOLD + "Adventure Mode");
        }

Therefore you need to add your persmission to your plugin.yml under your command gma.
For example:

Code:

author:..
version...
   gma:
       usage: /gma
       permission: yourplugin.gma
       permission-message: You dont have permissions for gma

The spaces arent correct, but I hust wanted to show you where you have to add it