Vault/src/net/milkbowl/vault/economy/plugins/Economy_iConomy6.java

package net.milkbowl.vault.economy.plugins;

import java.util.logging.Logger;

import org.bukkit.event.Event.Priority;
import org.bukkit.event.Event.Type;
import org.bukkit.event.server.PluginDisableEvent;
import org.bukkit.event.server.PluginEnableEvent;
import org.bukkit.event.server.ServerListener;
import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.PluginManager;
import org.bukkit.plugin.java.JavaPlugin;

import com.iCo6.iConomy;
import com.iCo6.system.Account;
import com.iCo6.system.Accounts;
import com.iCo6.system.Holdings;

import net.milkbowl.vault.economy.Economy;
import net.milkbowl.vault.economy.EconomyResponse;

public class Economy_iConomy6 implements Economy {
	private static final Logger log = Logger.getLogger("Minecraft");

	private String name = "iConomy 6";
	private JavaPlugin plugin = null;
	private PluginManager pluginManager = null;
	protected iConomy economy = null;
	private Accounts accounts;
	private EconomyServerListener economyServerListener = null;

	public Economy_iConomy6(JavaPlugin plugin) {
		this.plugin = plugin;
		this.pluginManager = this.plugin.getServer().getPluginManager();

		economyServerListener = new EconomyServerListener(this);

		this.pluginManager.registerEvent(Type.PLUGIN_ENABLE, economyServerListener, Priority.Monitor, plugin);
		this.pluginManager.registerEvent(Type.PLUGIN_DISABLE, economyServerListener, Priority.Monitor, plugin);

		// Load Plugin in case it was loaded before
		if (economy == null) {
			Plugin ec = plugin.getServer().getPluginManager().getPlugin("iConomy");
			if (ec != null && ec.isEnabled() && ec.getClass().getName().equals("com.iCo6.iConomy")) {
				economy = (iConomy) ec;
				accounts = new Accounts();
				log.info(String.format("[%s][Economy] %s hooked.", plugin.getDescription().getName(), name));
			}
		}
	}
	private class EconomyServerListener extends ServerListener {
		Economy_iConomy6 economy = null;

		public EconomyServerListener(Economy_iConomy6 economy) {
			this.economy = economy;
		}

		public void onPluginEnable(PluginEnableEvent event) {
			if (economy.economy == null) {
				Plugin ec = plugin.getServer().getPluginManager().getPlugin("iConomy");

				if (ec != null && ec.isEnabled() && ec.getClass().getName().equals("com.iCo6.iConomy")) {
					economy.economy = (iConomy) ec;
					log.info(String.format("[%s][Economy] %s hooked.", plugin.getDescription().getName(), economy.name));
				}
			}
		}

		public void onPluginDisable(PluginDisableEvent event) {
			if (economy.economy != null) {
				if (event.getPlugin().getDescription().getName().equals("iConomy")) {
					economy.economy = null;
					log.info(String.format("[%s][Economy] %s unhooked.", plugin.getDescription().getName(), economy.name));
				}
			}
		}
	}

	@Override
	public boolean isEnabled() {
		if (economy == null) {
			return false;
		} else {
			return economy.isEnabled();
		}
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public String format(double amount) {
		return iConomy.format(amount);
	}

	@Override
	public double getBalance(String playerName) {
		if (accounts.exists(playerName))
			return accounts.get(playerName).getHoldings().getBalance();
		else
			return 0;
	}

	@Override
	public EconomyResponse withdrawPlayer(String playerName, double amount) {
		double balance;
        EconomyResponse.ResponseType type;
        String errorMessage = null;

        Account account = accounts.get(playerName);
        Holdings holdings = account.getHoldings();
        if (holdings.hasEnough(amount)) {
            holdings.subtract(amount);
            balance = holdings.getBalance();
            type = EconomyResponse.ResponseType.SUCCESS;
            return new EconomyResponse(balance, balance, type, errorMessage);
        } else {
            amount = 0;
            balance = holdings.getBalance();
            type = EconomyResponse.ResponseType.FAILURE;
            errorMessage = "Insufficient funds";
            return new EconomyResponse(balance, balance, type, errorMessage);
        }
	}

	@Override
	public EconomyResponse depositPlayer(String playerName, double amount) {
		double balance;
        EconomyResponse.ResponseType type;
        String errorMessage = null;

        Account account = accounts.get(playerName);
        Holdings holdings = account.getHoldings();
        holdings.add(amount);
        balance = holdings.getBalance();
        type = EconomyResponse.ResponseType.SUCCESS;

        return new EconomyResponse(amount, balance, type, errorMessage);
	}

}