BasicTopologyManagerComponent.java

/*******************************************************************************
 * Copyright (c) 2015 Composent, Inc. 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:
 *   Composent, Inc. - initial API and implementation
 ******************************************************************************/
package org.eclipse.ecf.internal.osgi.services.distribution;

import java.util.Map;
import org.osgi.framework.ServiceEvent;
import org.osgi.framework.hooks.service.EventListenerHook;
import org.osgi.service.remoteserviceadmin.EndpointEventListener;
import org.osgi.service.remoteserviceadmin.RemoteServiceAdminEvent;
import org.osgi.service.remoteserviceadmin.RemoteServiceAdminListener;

public class BasicTopologyManagerComponent implements EventListenerHook, RemoteServiceAdminListener {

	private boolean exportRegisteredSvcs = new Boolean(
			System.getProperty("org.eclipse.ecf.osgi.services.basictopologymanager.exportRegisteredSvcs", "true")) //$NON-NLS-1$ //$NON-NLS-2$
					.booleanValue();

	private String exportRegisteredSvcsFilter = System.getProperty(
			"org.eclipse.ecf.osgi.services.basictopologymanager.exportRegisteredSvcsFilter", //$NON-NLS-1$
			"(service.exported.interfaces=*)"); //$NON-NLS-1$

	private String exportRegisteredSvcsClassname = System
			.getProperty("org.eclipse.ecf.osgi.services.basictopologymanager.exportRegisteredSvcsClassname"); //$NON-NLS-1$

	private BasicTopologyManagerImpl basicTopologyManagerImpl;

	void bindEndpointEventListener(EndpointEventListener el) {
		if (el instanceof Activator.ProxyEndpointEventListener)
			basicTopologyManagerImpl = ((Activator.ProxyEndpointEventListener) el).getBasicTopologyManagerImpl();
		else if (el instanceof BasicTopologyManagerImpl)
			basicTopologyManagerImpl = (BasicTopologyManagerImpl) el;
	}

	void unbindEndpointEventListener(EndpointEventListener el) {
		basicTopologyManagerImpl = null;
	}

	void activate() {
		if (basicTopologyManagerImpl == null)
			return;
		if (exportRegisteredSvcs)
			basicTopologyManagerImpl.exportRegisteredServices(exportRegisteredSvcsClassname,
					exportRegisteredSvcsFilter);
	}

	// RemoteServiceAdminListener impl
	public void remoteAdminEvent(RemoteServiceAdminEvent event) {
		if (basicTopologyManagerImpl == null)
			return;
		basicTopologyManagerImpl.handleRemoteAdminEvent(event);
	}

	// EventListenerHook impl
	public void event(ServiceEvent event, Map listeners) {
		if (basicTopologyManagerImpl == null)
			return;
		basicTopologyManagerImpl.event(event, listeners);
	}

}