rmiserver.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 library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * or look at http://www.gnu.org/copleft/lesser.html.
 *
 * version $Id: RMIServer.java,v 1.7 2003/04/13 21:13:38 joerg Exp $
 ******************************************************************************/

package de.iiit.access.common.rmi;

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

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

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 21:13:38 $
 */
public class RMIServer extends UnicastRemoteObject implements RMIServerIf
{
    /** CVS Version Tag */
    private static final String vcid = "$Id: RMIServer.java,v 1.7 2003/04/13 21:13:38 joerg Exp $";

    private Logger logger = Logger.getLogger(this.getClass());
    
    private boolean verifyUser = true;

    private ResolverPluginIf resolver = null;
    
    /** Creates a new instance of RmiServer
     * @throws RemoteException when anything goes wrong
     */
    public RMIServer() throws RemoteException
    {
        logger.info("RMIServer intantiated.");

        verifyUser = AccessServer.getVerifyUser();        
        resolver = AccessServer.getResolverPlugin();
    }

    /** Shuts down the server.
     * @throws RemoteException when anything goes wrong
     */    
    public void serverShutdown() throws RemoteException
    {
        logger.info("Shutdown command recognized");
        AccessServer.shutDown();
    }
    
    /** Returns a new RMI session for a distinct user.
     * @param user the name of the for whom the session will be used.
     * @throws RemoteException if there are any RMI errors.
     * @return the newly created session
     */    
    public RMISessionIf getSession(String user) throws RemoteException
    {
        RMISession result = null;

        boolean flag = true;
        
        if (verifyUser)
        {
            long t = System.currentTimeMillis();
            flag = resolver.verifyUser(user);
            t = System.currentTimeMillis() - t;

            logger.info("User <" + user + "> verified, ellapsed Time = " + t + "ms");
        }
        
        if (flag)
        {
            result = new RMISession(user);
        }

        return result;
    }
    
}

/**
 * $Log: RMIServer.java,v $
 * Revision 1.7  2003/04/13 21:13:38  joerg
 * Copyright statements changed to LGPL
 *
 * 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
 *
 */