• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Parser

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Can someone teach me what is Parser? And what is wrong wiht the following code:

import java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;

import org.kxml.*;
import org.kxml.parser.*;

public class LoginParser
{
DVDReserMIDlet midlet;

public LoginParser(DVDReserMIDlet mid)
{
midlet = mid;
}

public void parse(final String URL)
{
Thread t = new Thread()
{
public void run()
{
// set up the network connection
HttpConnection hc = null;

try
{
System.out.println("LoginParser-"+midlet.URL);
hc = (HttpConnection)Connector.open(midlet.URL);
parse(hc.openInputStream());
}
catch (IOException ioe)
{
//mRSSListener.exception(ioe);
System.out.println("LoginParser-Error");
}
finally
{
try
{
if (hc != null)
hc.close();
}
catch (IOException ignored) {}
}
}
};
t.start();
}

public void parse(InputStream in) throws IOException
{
Reader reader = new InputStreamReader(in);
XmlParser parser = new XmlParser(reader);
ParseEvent pe = null;

String count = "";

boolean trucking = true;
while (trucking)
{
pe = parser.read();
if (pe.getType() == Xml.START_TAG)
{
String name = pe.getName();

if (name.equals("USER"))
{
pe = parser.read();
count =pe.getText();
midlet.LoginOK=count;
System.out.println("LoginParser"+midlet.LoginOK);
if(midlet.LoginOK=="1")
{
midlet.ChoiceSelect(1);
return;
}
}
else
{
while ((pe.getType() != Xml.END_TAG) || (pe.getName().equals("html") == false))
pe = parser.read();
}
}
if (pe.getType() == Xml.END_TAG && pe.getName().equals("USER"))
trucking = false;
}

}
}

This is my xml:
<?xml version="1.0" encoding="utf-8" ?>
- <USER xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://tempuri.org/">
<Count>1</Count>
</USER>

This is the java file:
//include the MIDlet super class
import javax.microedition.lcdui.*;

public class DVDLogin extends Form implements CommandListener
{
DVDReserMIDlet midlet;

LoginParser lp;

TextField user_id = new TextField ("User ID: ", "", 10, TextField.ANY);
TextField password = new TextField ("Password: ", "", 10, TextField.ANY);

Ticker ticker = new Ticker("Papillion's DVD - Login");

public DVDLogin (DVDReserMIDlet m)
{
super("Welcome. Enjoy your stay");
setCommandListener(this);
this.midlet = m;

try
{
setTicker(ticker);
Image image = Image.createImage("/Butterfly t1.png");
ImageItem butterfly = new ImageItem("", image, ImageItem.LAYOUT_CENTER, "Error. Image Missing!");

this.append(butterfly);
this.append(user_id);
this.append(password);

addCommand(new Command("OK", Command.OK, 1));
addCommand(new Command("Quit", Command.STOP, 1));
}
catch(Exception e)
{
e.printStackTrace();
}
}

/**Handle command events*/
public void commandAction(Command c, Displayable d)
{
if (c.getCommandType() == Command.STOP)
{
DVDReserMIDlet.quitApp();
return;
}
if (c.getCommandType() == Command.OK)
{
String URL = new String("");

URL = "http://localhost:8080/WebService.asmx?CheckUser?userid="+user_id.getString()+"&password="+password.getString();

midlet.URL = URL;

System.out.println("DVD_Login"+user_id.getString());
System.out.println("DVD_Login"+password.getString());
System.out.println("DVD_Login"+midlet.URL);

LoginParser lp_1 = new LoginParser(midlet);
lp_1.parse(midlet.URL);
}
}
}

This is the midlet file:
//include the MIDlet super class
import javax.microedition.midlet.MIDlet;
//include the GUI libraries of MIDP
import javax.microedition.lcdui.*;

public class DVDReserMIDlet extends MIDlet
{
static DVDReserMIDlet instance;

public String URL = new String ("");

//User Information
public String selectedUSER_ID = new String ("");//R
public String selectedPassword = new String ("");

//DVD Information
public String selectedDVD_ID = new String ("");//R
public String selectedTitle = new String ("");
public String selectedQty = new String ("");
public String selectedDialect = new String ("");
public String selectedDay = new String ("");

//Reservation Information
public String selectedReser_ID = new String ("");//R
public String selectedReser_Qty = new String ("");//R
public String selectedDate = new String ("");//R

//Other
public String LoginOK = new String ("");

DVDLogin dvd_login;
DVDSearch dvd_search ;
DVDResult dvd_result;
DVDReservation dvd_reservation;
DVDConfirmation dvd_confirmation;

private Display displayable;

/**Construct the midlet*/
public DVDReserMIDlet ()
{
this.instance = this;
dvd_login = new DVDLogin(this);
}

/**Main method*/
public void startApp()
{
displayable = Display.getDisplay(this);
displayable.setCurrent(dvd_login);
}

/**Handle pausing the MIDlet*/
public void pauseApp()
{
}

/**Handle destroying the MIDlet*/
public void destroyApp(boolean unconditional)
{
}

/**Quit the MIDlet*/
public static void quitApp()
{
instance.destroyApp(true);
instance.notifyDestroyed();
instance = null;
}

public void ChoiceSelect(int idx)
{
switch(idx)
{
case 0:
dvd_login = new DVDLogin (this);
displayable.setCurrent(dvd_login);
break;

case 1:
dvd_search = new DVDSearch (this);
displayable.setCurrent(dvd_search );
break;

case 2:
dvd_result = new DVDResult(this);
displayable.setCurrent(dvd_result);
break;

case 3:
dvd_reservation= new DVDReservation(this);
displayable.setCurrent(dvd_reservation);
break;

case 4:
dvd_confirmation = new DVDConfirmation (this);
displayable.setCurrent(dvd_confirmation );
break;
}

}
}
 
Consider Paul's rocket mass heater.
reply
    Bookmark Topic Watch Topic
  • New Topic