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package cgeo.geocaching.utils;
import cgeo.geocaching.MainActivity;
import cgeo.geocaching.R;
import cgeo.geocaching.cgData;
import cgeo.geocaching.activity.ActivityMixin;
import cgeo.geocaching.ui.Formatter;
import org.apache.commons.lang3.StringUtils;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.res.Resources;
import android.os.Handler;
import android.os.Message;
import java.io.File;
import java.util.concurrent.atomic.AtomicBoolean;
public class DatabaseBackupUtils {
private DatabaseBackupUtils() {
// utility class
}
/**
* restore the database in a new thread, showing a progress window
*
* @param activity
* calling activity
*/
public static void restoreDatabase(final Activity activity) {
final Resources res = activity.getResources();
final ProgressDialog dialog = ProgressDialog.show(activity, res.getString(R.string.init_backup_restore), res.getString(R.string.init_restore_running), true, false);
final AtomicBoolean restoreSuccessful = new AtomicBoolean(false);
Thread restoreThread = new Thread() {
final Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
dialog.dismiss();
boolean restored = restoreSuccessful.get();
String message = restored ? res.getString(R.string.init_restore_success) : res.getString(R.string.init_restore_failed);
ActivityMixin.helpDialog(activity, res.getString(R.string.init_backup_restore), message);
if (activity instanceof MainActivity) {
((MainActivity) activity).updateCacheCounter();
}
}
};
@Override
public void run() {
restoreSuccessful.set(cgData.restoreDatabaseInternal());
handler.sendMessage(handler.obtainMessage());
}
};
restoreThread.start();
}
public static boolean createBackup(final Activity activity, final Runnable runAfterwards) {
final Context context = activity;
// avoid overwriting an existing backup with an empty database
// (can happen directly after reinstalling the app)
if (cgData.getAllCachesCount() == 0) {
ActivityMixin.helpDialog(activity,
context.getString(R.string.init_backup),
context.getString(R.string.init_backup_unnecessary));
return false;
}
final ProgressDialog dialog = ProgressDialog.show(context,
context.getString(R.string.init_backup),
context.getString(R.string.init_backup_running), true, false);
new Thread() {
@Override
public void run() {
final String backupFileName = cgData.backupDatabaseInternal();
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
dialog.dismiss();
ActivityMixin.helpDialog(activity,
context.getString(R.string.init_backup_backup),
backupFileName != null
? context.getString(R.string.init_backup_success)
+ "\n" + backupFileName
: context.getString(R.string.init_backup_failed));
if (runAfterwards != null) {
runAfterwards.run();
}
}
});
}
}.start();
return true;
}
public static File getRestoreFile() {
final File fileSourceFile = cgData.getBackupFileInternal();
return fileSourceFile.exists() ? fileSourceFile : null;
}
public static boolean hasBackup() {
return getRestoreFile() != null;
}
public static String getBackupDateTime() {
final File restoreFile = getRestoreFile();
if (restoreFile == null) {
return StringUtils.EMPTY;
}
return Formatter.formatShortDateTime(restoreFile.lastModified());
}
}
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