/* ownCloud Android client application
 *   Copyright (C) 2011  Bartek Przybylski
 *   Copyright (C) 2012-2013 ownCloud Inc.
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2,
 *   as published by the Free Software Foundation.
 *
 *   This program 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 com.owncloud.android.syncadapter;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;

/**
 * Background service for synchronizing remote files with their local state.
 * 
 * Serves as a connector to an instance of {@link FileSyncAdapter}, as required by standard Android APIs. 
 * 
 * @author Bartek Przybylski
 * @author David A. Velasco
 */
public class FileSyncService extends Service {
    
    // Storage for an instance of the sync adapter
    private static FileSyncAdapter sSyncAdapter = null;
    // Object to use as a thread-safe lock
    private static final Object sSyncAdapterLock = new Object();
    
    /*
     * {@inheritDoc}
     */
    @Override
    public void onCreate() {
        synchronized (sSyncAdapterLock) {
            if (sSyncAdapter == null) {
                sSyncAdapter = new FileSyncAdapter(getApplicationContext(), true);
            }
        }
    }

    /*
     * {@inheritDoc}
     */
    @Override
    public IBinder onBind(Intent intent) {
       return sSyncAdapter.getSyncAdapterBinder();
    }
    
}