gistfile1.java

package net.bigbadcraft.bukkit;

import java.io.File;
import java.io.IOException;

import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerQuitEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener {

  private File file;
	protected String firstJoinMsg;
	protected String returnMsg;
	protected String leaveMsg;

	public void onEnable() {
		createFiles();
		
		getServer().getPluginManager().registerEvents(this, this);
	}
	
	public void onDisable() {
		saveConfig();
	}
	
	private void createFiles() {
		saveDefaultConfig();
		
		this.file = new File(this.getDataFolder(), "config.yml");
		
		if (!file.exists()) {
			try {
				getLogger().warning("Configuration file doesn't exist, creating..");
				file.createNewFile();
				getLogger().info("Configuration file created.");
			} catch (IOException ex) {
				getLogger().severe("Could not create configuration file.");
				ex.printStackTrace();
			}
		}
		
		firstJoinMsg = getConfig().getString("onFirstJoin");
		returnMsg = getConfig().getString("onReturn");
		leaveMsg = getConfig().getString("onLeave");
	}
	
	private void replaceVariables(PlayerJoinEvent event) {
		firstJoinMsg = firstJoinMsg.replace("%player%", event.getPlayer().getName());
		returnMsg = returnMsg.replace("%player%", event.getPlayer().getName());
	}
	
	@EventHandler
	public void onPlayerJoin(PlayerJoinEvent event) {
		replaceVariables(event);
		
		if (!event.getPlayer().hasPlayedBefore()) {
			event.setJoinMessage(firstJoinMsg);
		} else {
			event.setJoinMessage(returnMsg);
		}
	}
	
	@EventHandler
	public void onPlayerLeave(PlayerQuitEvent event) {
		event.setQuitMessage(leaveMsg.replace("%player%", event.getPlayer().getName()));
	}
}