XMLParsing.java

//===========Startup.java file==============

import net.rim.device.api.lcdui.control.DirectionControl;
import net.rim.device.api.ui.Ui;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.UiEngineInstance;
import net.rim.device.api.ui.component.Dialog;

public class StartUp extends UiApplication
{
	public static boolean isLandScape=false;
	public static UiEngineInstance uiEngineInstance;
	public static void main(String[]args)
	{
		StartUp start=new StartUp();
		start.enterEventDispatcher();
	}
	public StartUp()
	{
		uiEngineInstance=Ui.getUiEngineInstance();
		uiEngineInstance.setAcceptableDirections(DirectionControl.DIRECTION_LANDSCAPE);
		this.pushScreen(new LoadingScreen());
	}

	public static void errorHandling(final String exception)
	{
		UiApplication.getUiApplication().invokeLater(new Runnable()
		{
			public void run()
			{
				Dialog.alert(exception);
			}
		});
	}
}
//===============================LoadingScreen.java;

public class LoadingScreen extends MainScreen implements FieldChangeListener
{
	ButtonField click;
	public LoadingScreen()
	{
		setTitle("Loading Screen");
		createGUI();
	}

	public  void createGUI()
	{
		setTitle("Loading Screen");
		click=new ButtonField("Click");
		click.setChangeListener(this);
		add(click);
	}

	public void fieldChanged(Field field, int context)
	{
		if(field==click)
		{
			String customerIdUserIdPassword="pari";
			String url="http://122.166.229.151:8080/imonitor/mobile/login.action?data=<imonitor><customerid>"+customerIdUserIdPassword+"</customerid><userid>"+customerIdUserIdPassword+"</userid><password>"+customerIdUserIdPassword+"</password></imonitor>";
			ConnectionThread thread=new ConnectionThread(this,url,1);
			thread.start();
		}
	}

	public void getResponse(String result)
	{
		StartUp.errorHandling(result);
	}
}
//=======================ConnectionThread.java;

import java.io.ByteArrayInputStream;
import java.io.InputStream;

import javax.microedition.io.Connector;
import javax.microedition.io.HttpConnection;

import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.xml.jaxp.SAXParserImpl;


public class ConnectionThread extends Thread
{
	String url;
	HttpConnection httpConnection;
	InputStream inputStream;
	StringBuffer stringBuffer=new StringBuffer();
	LoadingScreen loadingScreen;
	int index;
	public ConnectionThread(LoadingScreen loadingScreen, String url,int index)
	{
		this.index=index;
		this.loadingScreen=loadingScreen;
		this.url=url;
	}
	public void run()
	{
		try
		{
			httpConnection=(HttpConnection)Connector.open(url+";interface=wifi");
			int response=httpConnection.getResponseCode();
			if(response==HttpConnection.HTTP_OK)
			{
				inputStream = httpConnection.openInputStream();
				byte data[];
				data=IOUtilities.streamToBytes(inputStream);
				String result=new String(data);
				callBack(result);
			}
			else
			{
				callBack("ERROR");
			}
		}
		catch (Exception e)
		{
			synchronized (UiApplication.getEventLock())
			{
				UiApplication.getUiApplication().popScreen(UiApplication.getUiApplication().getActiveScreen());
				StartUp.errorHandling(e.getMessage());
			}
		}
		finally
		{
			try
			{
				if(httpConnection!=null)
				{
					httpConnection.close();
				}
				if(inputStream!=null)
				{
					inputStream.close();
				}
			}
			catch (Exception e2)
			{}
		}
	}

	private void callBack(String response)
	{
		if(response.equals("ERROR"))
		{
			UiApplication.getUiApplication().popScreen(UiApplication.getUiApplication().getActiveScreen());
			StartUp.errorHandling("Check the URL");
		}
		else
		{
			int i=response.indexOf("<status>")+8;
			int j=response.indexOf("</status>");
			loadingScreen.getResponse(response.substring(i, j));
		}
	}
}