virtualModem/src/net/hoo2/auth/vmodem/VirtualModem.java

/**
 * @file VirtualModem.java
 * @brief
 *    Contain the Main class for the project VirtualModem
 * 
 * @author Christos Choutouridis AEM:8997
 * @email  cchoutou@ece.auth.gr
 */
package net.hoo2.auth.vmodem;

/** @name imports */
/** @{ */
import org.apache.commons.cli.*;
/** @} */


/**
 * @class VirtualModem
 * 
 * @brief This is the main control class of the program. 
 * 
 * This class includes the main function.Using this class's api
 * the user can ... 
 */
public class VirtualModem {

   /** @name Data */
   /** @{ */
   CommandLine       line;
   CommandLineParser parser;
   Options           options;
   HelpFormatter     formatter;
   Com               com;
   String            logfile;
   boolean           verbose;
   /** @} */

   /** @name constructors */
   /** @{ */
   public VirtualModem () {
      parser      = new DefaultParser();
      options     = new Options();
      formatter   = new HelpFormatter();
      com         = new Com();
      logfile     = null;
      verbose     = false;
      // line is initialized in getCmdOptions()

      Option verbose = new Option ("v", "verbose", false, "Be more verbose");
      Option help    = new Option ("h", "help", false, "Print this message");
      Option timeout = Option.builder("t")
                             .longOpt("timeout")
                             .hasArg()
                             .valueSeparator('=')
                             .desc("Select timeout in [sec]")
                             .build();
      Option speed   = Option.builder("s")
                             .longOpt("speed")
                             .hasArg()
                             .valueSeparator('=')
                             .desc("Select speed in [bps]")
                             .build();
      Option log     = Option.builder("l")
                             .longOpt("log")
                             .hasArg()
                             .desc("Log file name")
                             .build();
      Option  echo   = Option.builder("e")
                             .longOpt("echo")
                             .numberOfArgs(2)
                             .desc ("Request echo sequence")
                             .build();
      
      options.addOption(verbose);
      options.addOption(help);
      options.addOption(timeout);
      options.addOption(speed);
      options.addOption(log);
      options.addOption(echo);
   }
   /** @} */

   private boolean getCmdOptions (String[] args) {
      try {
         // parse the command line arguments
         line = parser.parse (options, args);
      }
      catch( ParseException exp ) {
         // oops, something went wrong
         System.err.println( "Parsing command line failed: " + exp.getMessage() );
         return false;
      }
      return true;
   }
   
   private boolean commandDispatcher () {
      // Get boolean options first
      if (line.hasOption("verbose")) {
         verbose = true;
      }
      // get options
      if (line.hasOption("timeout")) {
         com.timeout(Integer.parseInt(line.getOptionValue("timeout")));
      }
      if (line.hasOption("speed")) {
         com.speed(Integer.parseInt(line.getOptionValue("speed")));
      }
      if (line.hasOption("log")) {
         logfile = line.getOptionValue("log");
      }
      // Execution dispatcher
      if (line.hasOption("help")) {
         formatter.printHelp( "virtualModem", options );
         return true;
      }
      if (line.hasOption("echo")) {
         Echo e = new Echo(com,
                           line.getOptionValues("echo")[0].getBytes(),
                           Integer.valueOf(line.getOptionValues("echo")[1]),
                           logfile);
         if (com.open() == true) {
            e.run(verbose);
            com.close();
         }
      }
      else {
         System.err.println ("Error: Unrecognized option");
         return false;
      }
      return true;
   }
   /**
    * @brief Main
    * 
    */
   public static void main(String[] args) {
      // allocate the main object
      VirtualModem vmodem = new VirtualModem();

      // prepare command line input
      if (vmodem.getCmdOptions (args) != true)
         return;
      if (vmodem.commandDispatcher() != true)
         return;
      
   }

}