/**
* Copyright (C) 2013 Romain Guefveneu.
*
* This file is part of naonedbus.
*
* Naonedbus is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Naonedbus is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.naonedbus.manager.impl;
import net.naonedbus.provider.DatabaseVersions;
import net.naonedbus.provider.impl.UpdaterProvider;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
/**
* @author romain.guefveneu
*
*/
public class UpdaterManager {
public enum UpdateType {
FIRST_LAUNCH, UPGRADE, UP_TO_DATE;
}
private static final String LAST_DATABASE_VERSION = "lastDataBaseVersion";
private static final String SHARED_PREF_NAME = "updateInfo";
public UpdateType needUpdate(final Context context) {
final SharedPreferences preferences = context.getSharedPreferences(SHARED_PREF_NAME, 0);
final int newDatabaseVersion = DatabaseVersions.CURRENT;
final int oldDatabaseVersion = preferences.getInt(LAST_DATABASE_VERSION, 0);
if (oldDatabaseVersion < DatabaseVersions.ACAPULCO) {
return UpdateType.FIRST_LAUNCH;
} else if (oldDatabaseVersion < newDatabaseVersion) {
return UpdateType.UPGRADE;
} else {
return UpdateType.UP_TO_DATE;
}
}
/**
* Déclencher la mise à jour de la base de données si nécessaire.
*
* @param contentResolver
*/
public void triggerUpdate(final Context context) {
final Cursor c = context.getContentResolver().query(UpdaterProvider.CONTENT_URI, null, null, null, null);
if (c != null) {
c.close();
}
final SharedPreferences preferences = context.getSharedPreferences(SHARED_PREF_NAME, 0);
preferences.edit().putInt(LAST_DATABASE_VERSION, DatabaseVersions.CURRENT).commit();
}
}