/*

 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

import java.rmi.*;

import java.rmi.server.*;

import java.util.*;

import java.io.*;

/**

 * Server accepts agents and could test for validity.  Acts as both a home

 * server and a regular server.  The agent will jump to this host and

 * the server will create a thread and allow the agent to run inside of

 * it.  The agent just queries the system.properties for machine info.

 */

public class AgentServerImpl

    extends UnicastRemoteObject

    implements AgentServer

{

    /**

     * Constructor

     *

     * @exception RemoteException If a network problem occurs.

     */

    public AgentServerImpl() throws RemoteException {

        // Could use to set up state of server

    }

    /**

     * Instantiates Agent Server Implementation and sets security

     * manager

     */

    public static void main(String args[]) {

        // Set the security Manager

        //System.setSecurityManager(new MyRMISecurityManager());

        try {

            AgentServerImpl server = new AgentServerImpl();

            Naming.rebind("/AgentServer", server);

            System.out.println("Ready to receive agents.");

                System.err.println("DTI_DoneInitializing");

        } catch (Exception e) {

                System.err.println("DTI_Error");

            System.err.println("Did not establish server");

            e.printStackTrace();

        }

    }

    /**

     * Remote method called by Agent to have server accept it.

     */

    public synchronized void accept(Agent agent)

        throws RemoteException //, InvalidAgentException

    {

        Thread t;

        // Could check validity of agent here

        // checkValid(agent);

        // Create new thread to run agent

        t = new Thread(agent);

        System.out.println("Agent Accepted: " + t);

        // Start agent

        t.start();

    }

    /**

     * Remote method called by Agent to return to final server.

     */

    public synchronized void returnHome(Agent agent)

        throws RemoteException //, InvalidAgentException

    {

        Enumeration info = null;

        boolean bErrorsOccurred = false;

        // Could check validity of agent here

        // checkValid(agent);

        // Grab and print collected info from agent

        info = agent.getInfo().elements();

        System.out.println("Collected information:");

        while (info.hasMoreElements()) {

            System.out.println("     " + (String) info.nextElement());

        }

        System.out.println("\nErrors:");

        System.out.println(agent.getErrors());

        if(!(agent.getErrors()).equals(""))

                bErrorsOccurred = true;

        if(bErrorsOccurred)

    {

                System.err.println("DTI_Error");

                System.err.println("DTI_DoneExecuting");

        }

        else

    {

                System.err.println("DTI_DoneExecuting");

    }

        }

}