simpleclient.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: SimpleClient.java,v 1.8 2003/04/13 21:13:38 joerg Exp $
 ******************************************************************************/

package de.iiit.access.client;

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

import java.io.*;
import java.rmi.*;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

/** This a demonstration for the RMI client
 * @version $Revision: 1.8 $ $Date: 2003/04/13 21:13:38 $
 */
public class SimpleClient
{
    /** CVS Version Tag */
    private static final String vcid = "$Id: SimpleClient.java,v 1.8 2003/04/13 21:13:38 joerg Exp $";

    /** Creates a new instance of SimpleClient */
    private SimpleClient()
    {
    }
        
    private static void expr(RMIClient client, String[] parts)
    {
        if (parts.length < 2)
            System.out.println("Syntax error: at least 1 Argument expected.");    
        else
        {
            String expr = parts[1];
            
            for (int i = 2; i < parts.length; i++)
                expr = expr + " " + parts[i];
            
            try
            {
                long t = System.currentTimeMillis();
                boolean result = client.resolveExpr(expr);
                t = System.currentTimeMillis() - t;

                System.out.println("Remote request done within " + t + " ms, Result = <" + result + ">");
            }
            catch (RMIClientException rce)
            {
                System.out.println("Client error while sending request");
                rce.printStackTrace(); 
            }
            catch (ParserException rpe)
            {
                System.out.println("Parser error");
                rpe.printStackTrace();
            }
        }
    }
    
    /** This is the main method of the simple client demonstration program.
     * It connects to the AccessServer running on localhost and using the default port
     * 54322. After the connection is established it waits for commands.
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        String[] server = { "localhost:54322" };
        
        RMIClient.initLogSystem("INFO", null);
        RMIClient.initialize(server, 1800, 1800, 10);

        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);

        RMIClient client = null;
        
        boolean loop = true;
        while(loop)
        {
            try
            {
                System.out.flush();
                System.out.print("Command > ");
                String line = br.readLine().trim();

                if (! line.equals(""))
                {                            
                    String[] parts = line.split("\\s");

//                    System.out.print("Line =");
//                    for (int i = 0; i < parts.length; i++)
//                        System.out.print(" <" + parts[i] + ">");
//
//                    System.out.println("");

                    if (parts[0].equalsIgnoreCase("setuser"))
                    {
                        client = RMIClient.getSession(parts[1]);
                        
                        if (client == null)
                            System.out.println("Unknown user <" + parts[1] + ">");                               
                    }
                    else if (parts[0].equalsIgnoreCase("expr"))
                        expr(client, parts);
                    else if (parts[0].equalsIgnoreCase("quit"))                        
                        loop = false;
                    else
                        System.out.println("Unknown command <" + parts[0] + ">");                               
                }
            }
            catch(Exception e)
            {
                e.printStackTrace(System.err);
            }
        }

        RMIClient.shutdown();
        
        System.out.println("Finished.");
    }
    
}

/**
 * $Log: SimpleClient.java,v $
 * Revision 1.8  2003/04/13 21:13:38  joerg
 * Copyright statements changed to LGPL
 *
 * Revision 1.7  2003/04/13 21:09:56  joerg
 * Package structure modified
 *
 * Revision 1.6  2003/04/13 20:16:41  joerg
 * Package structure modified
 *
 * Revision 1.5  2003/04/07 20:15:33  joerg
 * Adopted to changes in RMIClient
 *
 * Revision 1.4  2003/04/07 20:08:49  joerg
 * Improved JavaDoc.
 *
 * Revision 1.3  2003/04/07 17:13:50  joerg
 * RMIParserException is now catched.
 *
 * Revision 1.2  2003/04/06 20:45:00  joerg
 * GPL statement and some comments included.
 *
 */