FilePickerScreen

package com.anta40.securemediaplayer;

import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;

import javax.microedition.content.ContentHandlerException;
import javax.microedition.content.Invocation;
import javax.microedition.content.Registry;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;

import org.xml.sax.InputSource;

import net.rim.blackberry.api.browser.Browser;
import net.rim.blackberry.api.browser.BrowserSession;
import net.rim.device.api.io.IOUtilities;
import net.rim.device.api.io.file.ExtendedFileConnection;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.picker.FilePicker;
import net.rim.device.api.ui.picker.FilePicker.Listener;

public class FilePickerScreen extends MainScreen implements Listener, FieldChangeListener {

    private LabelField labelField;
    private FilePicker filePicker;
    private ButtonField buttonField;

    public FilePickerScreen(){

        setTitle("File Picker");
        buttonField = new ButtonField("Choose File", ButtonField.CONSUME_CLICK | ButtonField.NEVER_DIRTY | FIELD_HCENTER);
        buttonField.setChangeListener(this);
        add(buttonField);
        labelField = new LabelField();
        add(labelField);

        filePicker = FilePicker.getInstance();
        filePicker.setFilter(".mp3");

        try {
            String path = System.getProperty("fileconn.dir.music");

            FileConnection efconn = (FileConnection) Connector.open(path);

            if (efconn.exists()) filePicker.setPath(path);

        }
        catch(final Exception ioe){
//          UiApplication.getUiApplication().invokeLater(new Runnable(){
//               public void run(){
//                 Dialog.alert("Connector.open() threw " + ioe.toString());
//               }
//            });
        }

        filePicker.setListener(this);
    }

    public void fieldChanged(Field field, int context) {
         if(field == buttonField)  {
             filePicker.show();
         }
    }

    public void selectionDone(String selection) {
        if(selection != null && selection.length() > 0) {
            //Dialog.inform(selection);
            Invocation invocation = new Invocation(selection);
            String path = System.getProperty("fileconn.dir.music");
            //ExtendedFileConnection efconn = null;
            try {
                FileConnection fconn = (FileConnection) Connector.open(selection, Connector.READ_WRITE);
            InputStream is = fconn.openInputStream();
                byte[] bbb = IOUtilities.streamToBytes(is);
                Dialog.inform("bbb size: "+bbb.length);
                //DataOutputStream dos = efconn.openDataOutputStream();
                saveToFile("newsong.mp3", bbb);
            //  dos.close();
                fconn.close();


            } catch (IOException e1) {
                e1.printStackTrace();
            }
//          Registry reg = Registry.getRegistry("net.rim.device.api.content.BlackBerryContentHandler");
//          try {
//              reg.invoke(invocation);
//          } catch (IllegalArgumentException e) {
//              e.printStackTrace();
//          } catch (ContentHandlerException e) {
//              e.printStackTrace();
//          } catch (SecurityException e) {
//              e.printStackTrace();
//          } catch (IOException e) {
//              e.printStackTrace();
//          }


//          try {
//              Player player = Manager.createPlayer(selection);
//              player.realize();
//              player.prefetch();
//              player.start();
//          }
//          catch (MediaException me){
//
//          }
//          catch (IOException ioe){
//
//          }
//
            labelField.setText("Now playing: "+selection);
        }
    }

    private void saveToFile(String fName, byte[] bbb){
        DataOutputStream os = null;
        FileConnection fconn = null;
          try {
           fconn = (FileConnection) Connector.open("file://SDCard/BlackBerry/music/"+fName, Connector.WRITE);
           if (!fconn.exists())
            fconn.create();

           os = fconn.openDataOutputStream();
           os.write(bbb);
          } catch (IOException e) {
           System.out.println(e.getMessage());
          } finally {
           try {
            if (null != os)
             os.close();
            if (null != fconn)
             fconn.close();
           } catch (IOException e) {
            System.out.println(e.getMessage());
           }
          }
    }
}