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Client.java

 //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
 //                                                                        \\
 //                 Centre for Speech Technology Research                  \\
 //                      University of Edinburgh, UK                       \\
 //                        Copyright (c) 1996,1997                         \\
 //                         All Rights Reserved.                           \\
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 //   permit persons to whom this work is furnished to do so, subject to   \\
 //   the following conditions:                                            \\
 //    1. The code must retain the above copyright notice, this list of    \\
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 //    2. Any modifications must be clearly marked as such.                \\
 //    3. Original authors' names are not deleted.                         \\
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 //   THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK        \\
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 //   ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   \\
 //   SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE     \\
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 //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\
 //                                                                        \\
 //                  Author: Richard Caley (rjc@cstr.ed.ac.uk)             \\
 //  --------------------------------------------------------------------  \\
 //  Mainline for Java festival client.                                    \\
 //                                                                        \\
 //\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\//\\

package cstr.festival ;

import java.lang.*;
import java.util.*;
import java.awt.*;
import java.io.*;
import java.net.*;

import cstr.festival.client.*;
import cstr.festival.scheme.*;

class RequestHandler implements RequestListener
{
  Thread mainline;

  public RequestHandler(Thread main)
    {
      mainline=main;
    }

  public void requestRunning(Request r)
    {
      System.out.println("Request "+r.command+" running");
    }

  public void requestResult(Request r, Object res)
    {
      System.out.println("Request "+r.command+" result="+res);
    }

  public void requestError(Request r, String mes)
    {
      System.out.println("Request "+r.command+" error "+mes);
    }

  public void requestFinished(Request r)
    {
      System.out.println("Request "+r.command+" finished");
    }
}

public class Client {

  public static void useage(String error)
    {
      if (error != null)
      {
        System.out.println("");
        System.out.println("  "+error);
      }
      System.out.println("");
      System.out.println("Useage: festival_client_java [options] file...");
      System.out.println("");
      System.out.println("    --help                  Show this message.");
      System.out.println("    --server <host>         Connect to named host.");
      System.out.println("    --port <portnum>  Use the given port.");
      System.out.println("    --sync                  Wait for each expression to finish");
      System.out.println("                          executing before reading next.");
      System.out.println("    --wait                  Wait for all expressions to finish");
      System.out.println("                          executing before exiting.");
      
      System.exit(error!=null?1:0);
    }

  public static void main (String[] args)
    {
      String server="localhost";
      int port=1314;
      int i;
      boolean waitAtEnd=false;
      boolean sync=false;

      for(i=0; i<args.length; i++)
      {
        if (args[i].equals("--help"))
            useage(null);
        else if (args[i].equals("--server"))
          {
            i++;
            if (i>=args.length)
            useage("Need name after --server");

            server = args[i];
          }
        else if (args[i].equals("--port"))
          {
            i++;
            if (i>=args.length)
            useage("Need name after --server");

            try {
            port = Integer.parseInt(args[i]);
            } catch (NumberFormatException ex) {
            useage("Not a valid port number '" + args[i] + "'");
            }

          }
        else if (args[i].equals("--wait"))
          waitAtEnd=true;
        else if (args[i].equals("--sync"))
          sync=true;
        else if (args[i].startsWith("--"))
          useage("Unknown argument "+args[i]);
        else
          break;
      }

      System.out.println("Server='"+server+":"+port+"'");

      Session s=null;

      try {
      s = new Session(server, port);
      } catch (UnknownHostException ex) {
      useage("Unknown host '"+ex.getMessage()+"'");
      } catch (IOException ex) {
      useage("Can't connect '"+ex.getMessage()+"'");
      }

      s.initialise();

      System.out.println("Connected");

      if (i == args.length)
      {
        args = new String[] { "-" };
        i=0;
      }

    RequestListener handler = new RequestHandler(Thread.currentThread());

    file:
      for(; i<args.length; i++)
      {
        System.out.println("  '"+args[i]+"'");

        String filename = args[i];

        Reader reader = null;

        try {
          if (filename.equals("-"))
            reader = new InputStreamReader(System.in);
          else
            reader =  new InputStreamReader(new FileInputStream(filename));
        } catch (FileNotFoundException ex) {
          useage("Can't open '"+ ex.getMessage() + "'");
        }

        ReflectingSchemeReader sreader = new ReflectingSchemeReader(reader);

        try {
          String exp;
          while (true)
            {
            if (filename.equals("-"))
              {
                System.out.print("> ");
                System.out.flush();
              }

            exp=sreader.nextExprString();

            if (exp==null)
              break;

            System.out.println(": "+exp);
            Request r = s.request(exp, handler);
            if (sync)
              while (!r.isFinished())
                r.waitForUpdate();
            }
          } catch (IOException ioex) {
            System.out.println("    Error "+ioex.getMessage());
            break file;
          }
        System.out.println("--EOF--");
      }

      System.out.println("call terminate");
      s.terminate(waitAtEnd);
    }
};

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