Android Open Source - GeoNFC F T P Connection

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Back to project page GeoNFC.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.nfc.geo.geonfc.tcp;
//from w  ww  .j  a v  a 2 s. c  o m
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.SocketException;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Environment;

public class FTPConnection {

  private Activity activity;
  private File file;
  private FTPClient ftpClient;
  
  public FTPConnection(Activity act)
  {
    activity = act;    
  }
  
  public void downloadFile(String nameFile)
  {
    new DownloadFTP(activity, nameFile).execute();
  }
  
  class DownloadFTP extends AsyncTask<Void, Void, Void>
  {
    private ProgressDialog progressDialog;
    private String nameFile,replyString;
    
    public DownloadFTP(Context context,String name)
    {
      progressDialog = new ProgressDialog(context);
      progressDialog.setMessage("CARGANDO DATOS, ESPERE POR FAVOR");
      nameFile = name;
    }
    
    @Override
    protected void onPreExecute() {
      super.onPreExecute();
      progressDialog.show();
    }
    
    @Override
    protected void onPostExecute(Void result) {
      super.onPostExecute(result);
      progressDialog.dismiss();
      
      if(!replyString.contains("550 Failed to open file."))
        dataMessage("Eventos cargados correctamente!");
      else
        dataMessage("Error al cargar eventos, reintente por favor.");
    }

    @Override
    protected Void doInBackground(Void... params) {
      
      file = new File(activity.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "config.ini");
      
      try {
        ftpClient = new FTPClient();
        ftpClient.connect("your-url");
        ftpClient.login("username", "password");
        ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
        
        BufferedOutputStream buffoOut=null;
        buffoOut=new BufferedOutputStream(new FileOutputStream(file));
        ftpClient.enterLocalPassiveMode();
        ftpClient.retrieveFile(nameFile, buffoOut);
        replyString = ftpClient.getReplyString();
        buffoOut.close();
        ftpClient.logout();
        ftpClient.disconnect();      
      } catch (SocketException e) {
        dataMessage("Error al cargar eventos, reintente por favor.");
      } catch (IOException e) {
        dataMessage("Error al cargar eventos, reintente por favor.");
      }
      
      return null;
    }
    
    private void dataMessage(String mensaje)
    {
      final AlertDialog alertDialog = new AlertDialog.Builder(activity).create();
      alertDialog.setTitle("");
      alertDialog.setMessage(mensaje);
      alertDialog.setButton("Ok", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int which) {
          alertDialog.dismiss();
        } });
      alertDialog.show();
    }
  }
}

Java Source Code List