Pull XML From Remote Host - Blackberry Development

• Tweet
• 

        Hi, i use this class for pull XML from remote host

package com.jacsdev.test

import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.IOException;
import javax.microedition.io.HttpConnection;
import net.rim.device.api.io.transport.ConnectionDescriptor;
import net.rim.device.api.io.transport.ConnectionFactory;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;

class GetRemoteXML extends Thread
{
	public String myUrl = "";
	
	public GetRemoteXML(String url) {
		myUrl = url;
	}
	
    public void run()
    {
          ConnectionFactory mCFactory = new ConnectionFactory();
          ConnectionDescriptor connDesc;
          connDesc = mCFactory.getConnection(myUrl);
          if (connDesc != null)
          {
              HttpConnection mHttpConn;
              mHttpConn = (HttpConnection)connDesc.getConnection();
     
              try
              {
            	  DataInputStream dis = new DataInputStream(mHttpConn.openInputStream()); 
            	  int mBytes = dis.available();
            	  ByteArrayOutputStream mByteArray = new ByteArrayOutputStream();
            	  while ( 0 < mBytes  ) 
            	  {
            		  byte[] response = new byte[mBytes];
            		  dis.read(response);
            		  mByteArray.write(response);
            		  mBytes = dis.available();
            	  }
            	  // This String contains the xml
            	  final String XmlString = mByteArray.toString();
            	  
                  UiApplication.getUiApplication().invokeLater(new Runnable()
                  {
                      public void run()
                      {
                    	  // Here show an alert on mainscreen with xml content as string
                    	  Dialog.alert(XmlString.toString());
                      }
                   });
               } 
               catch (IOException e) 
               {
            	 System.out.println("IOException: " + e.toString());
                 System.err.println("Caught IOException: " + e.getMessage());
               }
          }
    }
}

So, here the way i call it

package com.jacsdev.test;

import net.rim.device.api.ui.UiApplication;

public class MyApp extends UiApplication
{
    public static void main(String[] args)
    {
        MyApp theApp = new MyApp();       
        theApp.enterEventDispatcher();
    }
    
    public MyApp()
    {        
    	MyScreen screen = new MyScreen();
        pushScreen(screen);
        GetRemoteXML  mXML = new GetRemoteXML("http://yourserver.com/yourxmlfile.xml");
	mXML.start();
    }  
    // If  you get success , you'll see a dialog wiht xml string ... so, you must to parser it the way you want
}

@jacsdev    

Tags:
• Blackberry
• Development
• jacsdev
• parser
• XML