usermanageractivator.java

使用OSGi框架开发的分布式电子辞典

/*
 * @(#)UserManagerActivator.java.
 * 
 * This program 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.
 * 
 * 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 Library General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
package cn.edu.ynu.sei.dict.plugin.user.service;

import cn.edu.ynu.sei.dict.plugin.db.connector.service.IDatabaseConnector;
import cn.edu.ynu.sei.dict.plugin.user.UserManager;
import java.util.Hashtable;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

/**
 * StoneAge User Management Service activator for OSGi.
 * @author zy
 * @version 1.0.0.0, Mar 13, 2008
 */
public class UserManagerActivator implements BundleActivator {

    private IUserManager userManager;
    private IDatabaseConnector databaseConnector;

    @Override
    public void start(BundleContext bundleContext) throws Exception {
        ServiceReference sr =
                bundleContext.getServiceReference(IDatabaseConnector.class.getName());
        databaseConnector = (IDatabaseConnector) bundleContext.getService(sr);
        userManager = new UserManager(databaseConnector);

        bundleContext.registerService(IUserManager.class.getName(),
                userManager,
                new Hashtable());
    }

    @Override
    public void stop(BundleContext arg0) throws Exception {
        userManager = null;
        databaseConnector = null;
    }
}