Activator.java

/*
 * Sewing: a Simple framework for Embedded-OSGi Web Development
 * Copyright (C) 2009 Bug Labs
 * Email: bballantine@buglabs.net
 * Site: http://www.buglabs.net
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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 Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.
 */

package com.buglabs.osgi.sewing;

import java.util.Map;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Filter;
import org.osgi.framework.ServiceRegistration;
import org.osgi.service.http.HttpService;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;

import com.buglabs.osgi.sewing.pub.ISewingService;
import com.buglabs.util.osgi.FilterUtil;
import com.buglabs.util.osgi.LogServiceUtil;
import com.buglabs.util.osgi.ServiceTrackerUtil;
import com.buglabs.util.osgi.ServiceTrackerUtil.ManagedInlineRunnable;

/**
 * BundleActivator for Sewing.
 * 
 */
public class Activator implements BundleActivator, ManagedInlineRunnable {

	private HttpService httpService;
	private LogService log;
	private BundleContext context;
	private ServiceRegistration sewingRegistration;
	private ServiceTracker stc;

	//private SewingServiceTracker stc;
	//private ServiceTracker st;

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
	 */
	public void start(BundleContext context) throws Exception {
		this.context = context;
		LogManager.setContext(context);
		log = LogServiceUtil.getLogService(context);
		// Create the service tracker and run it.
		stc = ServiceTrackerUtil.openServiceTracker(context, this, HttpService.class.getName());		
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
	 */
	public void stop(BundleContext context) throws Exception {
		stc.close();
	}

	@Override
	public void run(Map<String, Object> services) {
		httpService = (HttpService) services.get(HttpService.class.getName());
		sewingRegistration = context.registerService(ISewingService.class.getName(), new SewingServiceImpl(httpService), null);
	}

	@Override
	public void shutdown() {
		if (sewingRegistration != null) {
			sewingRegistration.unregister();
			sewingRegistration = null;
		}
	}
}