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| package com.test.fr.test;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.FileOutputStream;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new ConnexionFTP(this.getApplicationContext()).execute();
}
}
class ConnexionFTP extends AsyncTask<String, Void, String[]> {
public String modified;
public String time;
public static FTPClient mFTPClient = null;
public String TAG = "--MONERREUR--";
Context context;
final ProgressDialog pd;
public ConnexionFTP(Context applicationContext) {
// TODO Auto-generated constructor stub
this.context = applicationContext;
pd = new ProgressDialog(this.context);
}
@Override
protected void onPreExecute() {
pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
pd.setMessage("download");
pd.setIndeterminate(true);
pd.setCancelable(false);
pd.show();
}
protected String[] doInBackground(String... params) {
// TODO Auto-generated method stub
mFTPClient = new FTPClient();
try {
mFTPClient.connect("192.168.1.27", 21);
if (FTPReply.isPositiveCompletion(mFTPClient.getReplyCode())) {
mFTPClient.login("imane", "aze");
mFTPClient.enterLocalPassiveMode();
String filePath = "db.sqlite";
time = mFTPClient.getModificationTime(filePath);
Log.d(TAG, "Server Reply: " + time);
File file = new File("/data/data/com.test.fr.test/files/MAJ.txt");
if (file.exists()) {
try (BufferedReader buff = new BufferedReader(new FileReader("/data/data/com.test.fr.test/files/MAJ.txt"))) {
String line;
line = buff.readLine();
modified = line;
Log.d(TAG, "Server Reply: " + line);
}
} else {
File myFile = new File("/data/data/com.test.fr.test/files/MAJ.txt"); //on déclare notre futur fichier
File myDir = new File("/data/data/com.test.fr.test/files"); //pour créer le repertoire dans lequel on va mettre notre fichier
Boolean success = true;
if (!myDir.exists()) {
success = myDir.mkdir(); //On crée le répertoire (s'il n'existe pas!!)
}
if (success) {
String data = "valeur lancement négatif";
FileOutputStream output = new FileOutputStream(myFile, true); //le true est pour écrire en fin de fichier, et non l'écraser
output.write(data.getBytes());
modified = data;
}
}
}
int comparaison = time.compareTo(modified);
Log.d(TAG, "output");
if (comparaison < 0) {
Log.d(TAG, "output");
try {
FileOutputStream output = context.openFileOutput("db.sqlite",
Context.MODE_PRIVATE);
Log.d(TAG, "output");
mFTPClient.retrieveFile("db.sqlite", output);
Log.d(TAG, "retrieveFile");
output.close();
mFTPClient.logout();
mFTPClient.disconnect();
FileWriter fw = new FileWriter("/data/data/com.test.fr.test/files/MAJ.txt");
fw.write(time);
fw.close();
} catch (Exception e) {
Log.d(TAG, "Erreur de téléchargement ");
e.printStackTrace();
}
} else {
mFTPClient.logout();
mFTPClient.disconnect();
}
} catch (Exception e) {
Log.d(TAG, "Erreur de connexion avec l'hote ");
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String res) {
// TODO: check this.exception
// TODO: do something with the feed
if(this.pd.isShowing())
pd.dismiss();
}
} |
