rmiregistry.java

iiitAccessServer是一个用Java编写的基于规则的企业鉴别系统。它作为一个服务器工作

/*******************************************************************************
 * Copyright (C) 2002, 2003
 * ingenieurbuero fuer innovative informationstechnik (iiit)
 * Dipl.-Ing. Joerg Beckmann, Dortmund, Germany
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * version $Id: RMIRegistry.java,v 1.7 2003/04/13 21:14:56 joerg Exp $
 ******************************************************************************/

package de.iiit.access.server.plugins.server;

import de.iiit.access.common.api.*;
import de.iiit.access.common.rmi.*;

import de.iiit.access.server.*;
import de.iiit.access.server.api.*;
import de.iiit.access.server.plugins.server.*;

import de.iiit.xmlconfig.*;

import org.apache.log4j.Logger;

import java.rmi.*;
import java.rmi.server.*;
import java.rmi.registry.*;

/** Implements a RMI server for requesting the AccessServer
 * @version $Revision: 1.7 $ $Date: 2003/04/13 21:14:56 $
 */
public class RMIRegistry implements ThreadPluginIf
{
    /** CVS Version Tag */
    private static final String vcid = "$Id: RMIRegistry.java,v 1.7 2003/04/13 21:14:56 joerg Exp $";

    private Logger logger = Logger.getLogger(this.getClass());
    
    private static final String PORT = "Port";
    
    private Registry registry = null;
    
    private RMIServer server = null;
    
    private int port;
    
    /** Creates a new instance of RmiServer
     * @throws RemoteException when anything goes wrong
     */
    public RMIRegistry() throws RemoteException
    {
        logger.info("RMIRegistry intantiated.");
    }

    /** Initializes the server
     * @param config the configuration of the server. Currently the only parameter is <CODE>Port</CODE>
     * which defines the port number to listen on for connections. Default is <CODE>1234</CODE>
     */    
    public void initialize(Configuration config)
    {
        port = config.getIntAttribute(PORT, RMIServerIf.DEFAULT_RMI_PORT);
        
        logger.info("RMIRegistry configured on port <" + port + ">.");
    }

    /** This method is called by the AccessServer when the background threads should
     * stop because of a shutdown of the AccessServer itself.
     *
     */
    public void shutdown()
    {
        try 
        {
            registry.unbind("RMIServer");
            
            if (server != null)
                UnicastRemoteObject.unexportObject(server, true);
        }
        catch (RemoteException re)
        {
            logger.fatal("Error while shutting down", re);
        }
        catch (NotBoundException nbe)
        {
            logger.fatal("Error while shutting down", nbe);
        }
    }
    
    /** This method is called by the AccessServer when the background thread should
     * start. It is called after the method initialize() is called for all plug-ins.
     *
     */
    public void start()
    {
        logger.info("Starting RMI registry on <" + port + ">.");
        
        try 
        {
            server = new RMIServer();
            
            registry = LocateRegistry.createRegistry(port);
            registry.rebind("RMIServer", server);

            logger.info("RMI: RMIServer successfully registered.");
        }
        catch (RemoteException re)
        {
            logger.fatal("Error while starting RMI registry", re);
        }        
    }
    
}

/**
 * $Log: RMIRegistry.java,v $
 * Revision 1.7  2003/04/13 21:14:56  joerg
 * Copyright statements changed to GPL
 *
 * Revision 1.6  2003/04/13 20:49:09  joerg
 * Package structure modified
 *
 * Revision 1.5  2003/04/13 20:28:01  joerg
 * Package structure modified
 *
 * Revision 1.4  2003/04/13 20:16:42  joerg
 * Package structure modified
 *
 * Revision 1.3  2003/04/07 20:08:49  joerg
 * Improved JavaDoc.
 *
 * Revision 1.2  2003/03/30 20:44:16  joerg
 * Ongoing development
 *
 * Revision 1.1  2003/03/27 20:39:46  joerg
 * New class RMIServer
 *
 */