org.cristalise.kernel.process.ClientShell Maven / Gradle / Ivy

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/**
 * This file is part of the CRISTAL-iSE kernel.
 * Copyright (c) 2001-2015 The CRISTAL Consortium. All rights reserved.
 *
 * 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 3 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; with out 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.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.kernel.process;

import java.util.Scanner;

import org.cristalise.kernel.entity.proxy.AgentProxy;
import org.cristalise.kernel.process.auth.ProxyLogin;
import org.cristalise.kernel.scripting.Script;
import org.cristalise.kernel.scripting.ScriptParsingException;


public class ClientShell extends StandardClient {

    Script console;

    public ClientShell(AgentProxy a) throws Exception {
        agent = a;
        console = new Script("javascript", agent, System.out);
    }

    public void run() throws Exception {
        Scanner scan = new Scanner(System.in);
        scan.reset();
        String command = "";

        while (scan.hasNextLine() && !command.equals("exit")) {
            System.out.print("> ");
            command = scan.nextLine();

            try {
                console.setScriptData(command);
                Object response = console.execute();

                if (response == null) System.out.println("Command executed, no response");
                else                  System.out.println(response);
            }
            catch (ScriptParsingException e) {
                System.err.println("Syntax error: "+e.getMessage());
            }
            catch (Throwable ex) {
                ex.printStackTrace();
                command = "exit";
            }
        }

        System.out.println("ClientShell is exiting!");

        scan.close();
        shutdown(0);
    }

    public static void main(String[] args) throws Exception {
        Gateway.init(readC2KArgs(args));
        
        Runtime.getRuntime().addShutdownHook(new Thread() {
            @Override
            public void run() {
                AbstractMain.shutdown(0);
            }
        });

        ProxyLogin auth = (ProxyLogin)Gateway.getProperties().getInstance("cli.auth");
        auth.initialize(Gateway.getProperties());

        ClientShell shell = new ClientShell( auth.authenticate(Gateway.getProperties().getProperty("Name")) );

        shell.run();
    }
}