/*******************************************************************************
 * Copyright (c) 2009 Freescale Semiconductor and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Freescale Semiconductor - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.tests.dsf.events;

import java.util.Hashtable;

import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.junit.Assert;
import org.osgi.framework.Filter;
import org.osgi.framework.InvalidSyntaxException;

/**
 * This service differs from the other three in that when it registers itself as
 * an event listener with the dsf session, it specifies a services filter.
 * 
 */
public class Service4 extends AbstractService {
    Service4(DsfSession session) {
        super(session);
    }

    @Override public void initialize(final RequestMonitor requestMonitor) {
        super.initialize(
            new RequestMonitor(getExecutor(), requestMonitor) { 
                @Override
                public void handleSuccess() {
                    doInitialize(requestMonitor);
                }
            });
    }
            
    private void doInitialize(RequestMonitor requestMonitor) {
        getServicesTracker().getService(Service1.class);
        getServicesTracker().getService(Service2.class);
        getServicesTracker().getService(Service3.class);
        register(new String[]{Service4.class.getName()}, new Hashtable<String,String>());
        requestMonitor.done();
    }

    @Override public void shutdown(RequestMonitor requestMonitor) {
        unregister();
        super.shutdown(requestMonitor);
    }
    
    /**
     * We want to get events only from Service2.
     * @see org.eclipse.cdt.tests.dsf.events.AbstractService#getEventServicesFilter()
     */
    @Override protected Filter getEventServicesFilter() {
    	try {
			return getBundleContext().createFilter("(objectClass=org.eclipse.cdt.tests.dsf.events.Service2)");
		} catch (InvalidSyntaxException e) {
			Assert.fail();
			return null;
		}
    }
}