Java Example_(en)

Java program exmeple

Warning !! The programing of this new project is often modified, it's
possible that's this sample don't work with the last version of SVN.color red

It's only a simple X program skeleton to comunicate with
TuxDroidServer. With this code, you may be able to create a complete
IHM to drive your TuxDroid.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class TuxDroid 
{
private static Socket socket = null;        /* socket's declaration */
private static PrintWriter out = null;      /* output buffer's declaration */
private static BufferedReader in = null;    /* input buffer's declaration */

/***
 * use this function when you push head button
 */
private static void onHeadButton()
{
    System.out.println("bouton de la tête");
}

/***
 * use this function when you push Left wing
 */
private static void onLeftButton()
{
    System.out.println("bouton gauche");
}

/***
 * use  this function when you push right wing
 */
private static void onRightButton()
{
    System.out.println("bouton droit");
}

/***
 * use  this function when you plug battery charger
 */
private static void onChargerPlugged()
{
    //
}

/***
 * use  this function when you unplug battery charger
 */
private static void onChargerUnPlugged()
{
    //
}

/***
 * use  this function when you plug dongle on you computer
 */
private static void onDongleConnected()
{
    //
}

/***
 *  use  this function when you unplug dongle on you computer
 */
private static void onDongleDisConnected()
{
    //
}

/***
 *  use  this function when you push something in the remote controle 
 * 
 * @param button is the name of the button
 */
private static void onRemoteButton(String button)
{
    switch(button)
    {
        case "K_RED": // red button of remote controle
        {
            out.println("Tux_State(16)");
            System.out.println("battery level : "+getServerResponse());
        }
        break;
    }
}

/***
 *  to obtain a respons from server after a request
 * 
 * @return server's answer
 */
private static String getServerResponse()
{
    String str="";

    try
    {
        int x;
        while((x = in.read()) != '\r')
        {
            if(x > 1)
                str=str+(char)x;
        }
        return str;
    }
    catch(IOException ioe)
    {
        return "";
    }
}

/***
 * function to handle events from Tuxdroid
 * 
 * @param message
 */
private static void manageEvents(String message)
{
    String[] sp = null;

    if(message.startsWith("#TUXBUTTON") || message.startsWith("#TUXREMOTE"))
    {
        //c'est un bouton
        sp = message.split(":");

        if(sp[0].equalsIgnoreCase("#TUXBUTTON"))
        {
            switch(sp[1])
            {
                case "LEFT": onLeftButton();
                break;

                case "RIGHT": onRightButton();
                break;

                case "HEAD": onHeadButton();
                break;
            }
        }

        if(sp[0].equalsIgnoreCase("#TUXREMOTE"))
        {
            //remote controle
            onRemoteButton(sp[1]);
        }
    }
    else
    {
        if(message.startsWith("#TUXCHARGER"))
        {
            sp = message.split(":");

            switch(sp[1])
            {
                case "PLUGGED": onChargerPlugged();
                break;

                case "UNPLUGGED": onChargerUnPlugged();
                break;
            }
        }

        if(message.startsWith("#TUXDONGLE"))
        {
            sp = message.split(":");

            switch(sp[1])
            {
                case "CONNECTED": onDongleConnected();
                break;

                case "DISCONNECTED": onDongleDisConnected();
                break;
            }
        }
    }
}

public static void main(String[] args) throws IOException 
{
    /* try to connect to server/
    try 
    {
        socket = new Socket("192.168.1.43", 9090); // ip adress et listener of TuxDroidServer
        out = new PrintWriter(socket.getOutputStream(), true);
        in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

        out.println("Tux_Key(test)"); //more information about Tux_Key are in the wiki
    } 
    catch (IOException e) 
    {
        return;
    }

    String str="";
    int x;

    // to handle event
    while(true)
    {
        str="";
        while((x = in.read()) != '\r')
        {
            if(x > 31) /* de 0 à 31 are special character from ASCII */
                str=str+(char)x;
        }
        manageEvents(str);
    }
}

});
System.out.println(