Download thread

DownloadThread

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

public class DownloadThread extends Thread {
  
  InputStream inputStream = null;
  Handler handler;
  URL url;
  URLConnection urlConnection;
  
  public DownloadThread(Handler handler) {
    super();
    this.handler = handler;
    try {
      url = new URL(Variables.URL);
    } catch (MalformedURLException ex) {
      // CODICE IRRAGGIUNGIBILE,L'URL OVVIAMENTE E' OK
      ex.printStackTrace();
    }
  }
  
  @Override
  public void run() {
    Log.i("LVUpdate/DOWNLOAD Thread", " *** Avvio della procedura di download ***  ");
    Message message = new Message();
    byte[] buffer = new byte[1024]; // buffer store for the stream
    String read = "";
    try {
      urlConnection = url.openConnection();
      inputStream = urlConnection.getInputStream();
      int current = 0;
      while (((current = inputStream.read(buffer)) != -1)) {
        String temp = new String(buffer, 0, current);
        read += temp;
      }
      inputStream.close();
    } catch (IOException e) {
      Log.e("LVUpdate/DOWNLOAD Callable", "Error During Input Stream close; " + e.getMessage());
    }
    try {
      message.what = Variables.DOWNLOAD_FINISHED;
      message.obj = read;
      message.arg1 = Variables.NO_ERROR;
    } catch (Exception e) {
      message.arg1 = Variables.DOWNLOAD_ERROR;
    }
    handler.sendMessage(message);
  }
  
  public void cancel() {
    try {
      inputStream.close();
      this.interrupt();
    } catch (IOException e) {
      Log.e("THREAD CANCEL ERROR", "ERROR WHILE CLOSING CONNECTION");
    }
  }
}