jawprmiclienthelper.java

Java mulitplayer strategy game. Adaptation of KDE Galaxy Conquest. (rules are changed - but still th

/*
 * JAWPRMIClientHelper.java
 *
 * Created on 17 pa焏ziernik 2005, 18:59
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package net.sf.jawp.client.rmi;

import java.net.MalformedURLException;
import java.rmi.Naming;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;

import net.sf.jawp.RMIConst;
import net.sf.jawp.api.service.JAWPGameService;
import net.sf.jawp.api.service.rmi.JAWPGameServiceRMI;
import net.sf.jawp.api.service.rmi.JAWPGameServiceRMIClient;
import net.sf.jawp.gf.api.services.UserService;
import net.sf.jawp.gf.api.services.rmi.GameServiceClientFactory;
import net.sf.jawp.gf.api.services.rmi.UserServiceRMI;
import net.sf.jawp.gf.api.services.rmi.UserServiceRMIClient;
import net.sf.jawp.util.Log;

/**
 *
 * @author jarek
 */
public class JAWPRMIClientHelper 
{
	private static final Log LOG = Log.getLog(JAWPRMIClientHelper.class);
	
	
	
	private UserService<JAWPGameService > userService;
	
	
	
	private final String host; 
	
	private final int port;
	
	private final JAWPClientFactory factory = new JAWPClientFactory();
	/** Creates a new instance of JAWPRMIClientHelper */
	private JAWPRMIClientHelper(final String host, final int port)
	{
		this.host = host;
		this.port = port;
		getUserService();
	}
	
	public static JAWPRMIClientHelper create()
	{
		return create( "localhost");
	}
	
	public static JAWPRMIClientHelper create(final String host)
	{
		return create( host, RMIConst.RMI_PORT);
	}
	
	public static JAWPRMIClientHelper create(final String host, final int port)
	{
		return new JAWPRMIClientHelper( host, port);
	}
		
	@SuppressWarnings("unchecked")
	public  final synchronized UserService<JAWPGameService> getUserService()
	{
		if (this.userService == null)
		{
			try
			{
				final String hostString = "//" + this.host + ":" + this.port;
				final UserServiceRMI<JAWPGameService> client = 
					(UserServiceRMI<JAWPGameService>)Naming.lookup(hostString + "/userService");
				this.userService = new UserServiceRMIClient<JAWPGameService, JAWPClientFactory>( client, factory);
			}
			catch (final NotBoundException nbe)
			{
				LOG.error( nbe, nbe);
				Throwable t = nbe.getCause();
				while (t != null)
				{
					LOG.error( "caused by", t);
					t = t.getCause();
				}
				throw new RuntimeException (nbe);
			}
			catch (final MalformedURLException mue)
			{
				LOG.error( mue, mue);
				Throwable t = mue.getCause();
				while (t != null)
				{
					LOG.error( "caused by", t);
					t = t.getCause();
				}
				throw new RuntimeException (mue);
			}
			catch (final RemoteException re)
			{
				LOG.error( re, re);
				Throwable t = re.getCause();
				while (t != null)
				{
					LOG.error( "caused by", t);
					t = t.getCause();
				}
				throw new RuntimeException (re);
			}
		}
		return this.userService;
	}
	
	public final synchronized void closeConnection()
	{
		this.userService = null;
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void finalize() throws Throwable
	{
		closeConnection();
	}
	
	private static class JAWPClientFactory implements GameServiceClientFactory<JAWPGameService>
	{
		public JAWPGameService createClient(final java.rmi.Remote remote) throws RemoteException
		{
			return new JAWPGameServiceRMIClient( (JAWPGameServiceRMI) remote);
		}
		
	}
}