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EHS6 - Problem HTTP request. ATCommand class instance is not in transparent data **** | Thales IoT Developer Community

April 7, 2021 - 4:40pm, 680 views

Hello:
I try to read a web file, but the ATCommand of the cinterion always gives me the error
java.io.IOException: ATCommand class instance is not in transparent data ****
I had the same code in previous modules and it worked correctly. I leave you an example code to see if you could guide me. Thank you.

package ehs6comat;

import com.cinterion.io.ATCommand;

public class ControlerAT {

    private static ControlerAT controlador = null;
    private static ATCommand atc;
    public static boolean confirmacionLectura = false;

    private ControlerAT() {
        try {
            atc = new ATCommand(false);
            atc.addListener(new ListenerAT());
        } catch (IllegalStateException ex) {
            ex.printStackTrace();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public static ControlerAT getInstance() {
        if (controlador == null) {
            controlador = new ControlerAT();
        }
        return controlador;
    }

    public boolean inicializarPerfilServicioHttp(int servicio, String direccion) {
        try {
            sendAT("AT^SISS=" + servicio + ",srvType,http");
            sendAT("AT^SISS=" + servicio + ",conId,0");
            sendAT("AT^SISS=" + servicio + ",address," + direccion);
            sendAT("AT^SISS=" + servicio + ",cmd,get");
            Thread.sleep(2000);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        //TODO: Return con estado;
        return true;
    }

    public String sendAT(String str) {
        synchronized (atc) {
            try {
                System.out.println("COMANDO :" + str);
                str = atc.send(str + "\r".toUpperCase());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return str;
    }

    public void inicializarPerfilConexion(String apn, String user, String password) {
        try {
            sendAT("AT^SICS=0,conType,GPRS0");
            sendAT("AT^SICS=0,inactTO,10");
            sendAT("AT^SICS=0,user," + user);
            sendAT("AT^SICS=0,passwd," + password);
            sendAT("AT^SICS=0,apn," + apn);
            Thread.sleep(2000);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public byte[] leerSocket(int idSocket) {
        synchronized (atc) {
            byte[] buffer = new byte[0];
            try {
                atc.send("AT^SISR=" + idSocket + ",1500" + "\r".toUpperCase());
                atc.setDTR(true);
                buffer = new byte[atc.getDataInputStream().available()];
                //atc.getDataInputStream().read(buffer, 0, buffer.length);
                atc.getDataInputStream().read(buffer);

            } catch (Exception e) {
                e.printStackTrace();
            }
            return buffer;
        }
    }
    
    public boolean cerrarSocket(int idSocket) {
        sendAT("AT^SISC=" + idSocket);
        return true;
    }
    
    public boolean abrirSocket(int idSocket) {
        sendAT("AT^SISO=" + idSocket);
        return true;
    }
}
 

 

package ehs6comat;

import com.cinterion.io.ATCommandListener;

public class ListenerAT implements ATCommandListener {

    public void ATEvent(String arg0) {
        arg0 = arg0.trim();
        if (arg0.indexOf("^SISR:") != -1) {
            try {
                byte[] respuesta = ControlerAT.getInstance().leerSocket(0);
                ControlerAT.getInstance().cerrarSocket(0);
                String version = new String(respuesta).trim().toUpperCase();
                System.out.println("VERSION: " + version);
            } catch (Exception e) {

            }
        }

    }

    public void RINGChanged(boolean bln) {

    }

    public void DCDChanged(boolean bln) {

    }

    public void DSRChanged(boolean bln) {

    }

    public void CONNChanged(boolean bln) {

    }
    
    

}

 

 

package ehs6comat;

import javax.microedition.midlet.*;

public class IMlet extends MIDlet {

    public void startApp() {
        ControlerAT at = ControlerAT.getInstance();
        at.inicializarPerfilConexion("m2m.movistar.es", "MOVISTAR", "MOVISTAR");
        at.inicializarPerfilServicioHttp(0, "http://pruebas:8081/VERSION.VER");
        at.abrirSocket(0);
        try {
            Thread.sleep(10000);
        } catch (InterruptedException ex) {
            ex.printStackTrace();
        }
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
}
 

======

Never mind. We found solution.

We read from response of  atc.send and dont open any stream

 

Thanks