RemoteSimulationControl.java

/**Copyright or (C) or Copr. GET / ENST, Telecom-Paris, Ludovic Apvrille

ludovic.apvrille AT enst.fr

This software is a computer program whose purpose is to allow the 
edition of TURTLE analysis, design and deployment diagrams, to 
allow the generation of RT-LOTOS or Java code from this diagram, 
and at last to allow the analysis of formal validation traces 
obtained from external tools, e.g. RTL from LAAS-CNRS and CADP 
from INRIA Rhone-Alpes.

This software is governed by the CeCILL  license under French law and
abiding by the rules of distribution of free software.  You can  use, 
modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info". 

As a counterpart to the access to the source code and  rights to copy,
modify and redistribute granted by the license, users are provided only
with a limited warranty  and the software's author,  the holder of the
economic rights,  and the successive licensors  have only  limited
liability. 

In this respect, the user's attention is drawn to the risks associated
with loading,  using,  modifying and/or developing or reproducing the
software by the user in light of its specific status of free software,
that may mean  that it is complicated to manipulate,  and  that  also
therefore means  that it is reserved for developers  and  experienced
professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or 
data to be ensured and,  more generally, to use and operate it in the 
same conditions as regards security. 

The fact that you are presently reading this means that you have had
knowledge of the CeCILL license and that you accept its terms.

/**
* Class TIFTranslator
* Linecommand application for translating TIF to other languages
* Creation: 29/06/2007
* @version 1.0 29/06/2007
* @author Ludovic APVRILLE
* @see
*/

import java.io.*;
import java.util.*;

import remotesimulation.*;

import myutil.*;
//import uppaaldesc.*;

public class RemoteSimulationControl extends Thread  {
	
    public static int port = 3490; 
	public static String host = "localhost";
	public static RemoteConnection rc;
	
	public static boolean mygo = true;
	
	public boolean go = true;
	
	public RemoteSimulationControl() {
	}
	
	public static void printCopyright() {
		System.out.println("RemoteSimulationControl: (C) GET/ENST, Ludovic Apvrille, Ludovic.Apvrille@enst.fr");
		System.out.println("RemoteSimulationControl is released under a CECILL License. See http://www.cecill.info/index.en.html");
		System.out.println("For more information on TTool related technologies, please consult http://labsoc.comelec.enst.fr/turtle/ttoolindex.html");
		
		System.out.println("Enjoy!!!\n");
	}
	
	public static void printUsage() {
		System.out.println("RemoteSimulationControl: usage");
		System.out.println("RemoteSimulationControl <options>");
		System.out.println("<options> are optional. There might be : -host, -port, or -help");
		System.out.println("host: name on the host on which the simulator runs (default: localhost)");
		System.out.println("port: port on which the simulator accepts commands (default: 3490). Must be a positive integer value");
	}
	
	public static void printSeparator() {
		System.out.println("-------------------------------------------------------------");
	}
	
	public static void printEndSeparator() {
		System.out.println("-------------------------------------------------------------\n");
	}
	
	public static void printHelp() {
		System.out.println("\nHelp: ");
		printSeparator();
		System.out.println("help: prints that help");
		System.out.println("help <string cmd>: prints the help on a given command");
		System.out.println("list: lists all commands");
		System.out.println("quit: quits this simulation remote controller");
		printEndSeparator();
	}
	
	public static void printHelp(CommandParser cp, String cmd) {
		System.out.println("\nHelp on command " + cmd + ": ");
		printSeparator();
		System.out.println(cp.getHelp(cmd));
		printEndSeparator();
	}
	
	public static boolean analyseArgs(String [] args) {
		String tmp;
		int i;
		
		System.out.println("Reading arguments");
		
		for(i=0; i<args.length; i++) {
			tmp = args[i].toUpperCase();
			if (tmp.equals("-HELP")) {
				printUsage();
			} else if (tmp.equals("-HOST")) {
				if (i+1 == args.length) {
					System.out.println("Missing parameter for option \"-host\". Aborting");
					return false;
				}
				host = args[i+1];
				i++;
			} else if (tmp.equals("-PORT")) {
				if (i+1 == args.length) {
					System.out.println("Missing parameter for option \"-port\". Aborting");
					return false;
				}
				try {
					port = Integer.decode(args[i+1]).intValue();
				} catch (Exception e) {
					System.out.println("Wrong parameter (" + args[i+1] + ") for option \"-port\". Aborting");
					return false;
				}
				if (port < 1) {
					System.out.println("Wrong parameter (" + args[i+1] + ") for option \"-port\". Aborting");
					return false;
				}
				i++;
			} else {
				System.out.println("Unknown option: " + args[i] + ". Aborting");
				return false;
			}
		}
		
		return true;
	}
	
    public static void tryToConnect(RemoteConnection rc) {
		
		while(true) {
			System.out.println("\nTrying to connect on host: " + host + " on port: " + port);
			try {
				rc.connect();
				return ;
			} catch (RemoteConnectionException rce) {
				System.out.println("Exception: " + rce.getMessage());
				System.out.println("Could not connect to host: " + host + " on port: " + port + ". Retrying soon.");
			}
			try {
				Thread.currentThread().sleep(2000);
			} catch (InterruptedException ie) {
			}
		}
	}
	
    public static void main(String[] args) {
		String s;
		
		printCopyright();
		
		if (!analyseArgs(args)) {
			printUsage();
			return;
		}
		
		rc = new RemoteConnection(host, port);
		
		mygo = true;
		
		while(mygo) {
			tryToConnect(rc);
			System.out.println("Connected on host: " + host + " on port: " + port);
			
			// Create two threads: one for reading, one for writting
			RemoteSimulationControl rsct = new RemoteSimulationControl();
			rsct.start();
			
			try {
				while(true) {
					s = rc.readOneLine();
					System.out.print("\nFrom server: " + s + "\n>");
					System.out.flush();
				}
			} catch (RemoteConnectionException rce) {
				if (mygo) {
					System.out.println("Exception: " + rce.getMessage());
					System.out.println("Could not read data from host: " + host + " on port: " + port + ". Aborting");
				}
			}
			
			rsct.go = false;
		}
		
	}
	
	// Thread reading from keyboard
	public void run() {
		String tmp;
		int ret;
		
		String input;
		BufferedReader dataIn;
		
		CommandParser cp = new CommandParser();
		
		System.out.println("Type \"help\" for more information on commands");
		System.out.println("Ready to get commands:");
		
		try {
			dataIn = new BufferedReader(new InputStreamReader(System.in));
			while(go) {
				System.out.print(">");
				System.out.flush();
				input = dataIn.readLine();
				if (input.trim().length() == 0) {
				} else if (cp.isQuitCommand(input)) {
						mygo = false;
						try {
							rc.disconnect();
						} catch (RemoteConnectionException rce) {
						}
						System.out.println("bye-bye");
						System.exit(-1);
				} else if (cp.isHelpCommand(input)) {
					tmp = cp.getHelpWithCommand(input);
					if ((tmp != null) && (tmp.length() > 0)) {
						printHelp(cp, tmp);
					} else {
						printHelp();
					}
				} else if (cp.isListCommand(input)) {
					System.out.println("\nAvailable commands:");
					printSeparator();
					System.out.println(cp.getCommandList());
					printEndSeparator();
				} else {
					ret = cp.isAValidCommand(input);
					if (ret > -1) {
						rc.send(cp.transformCommandFromUserToSimulator(input));
					} else {
						if (ret == -1) {
							System.out.println("** wrong command **");
						} else {
							System.out.println("** wrong number / type of arguments **");
						}
					}
				}
			}
		} catch (IOException ioe) {
			System.out.println("Exception: " + ioe.getMessage());
		} catch (RemoteConnectionException rce) {
			System.out.println("Exception: " + rce.getMessage());
			System.out.println("Could not send data to host: " + host + " on port: " + port + ". Aborting");
			return;
		}
	}
	
	
} // Class RemoteSimulationControl