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/*******************************************************************************
* Copyright (c) 2007 Versant Corp.
* 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:
* Markus Kuppe (mkuppe <at> versant <dot> com) - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.internal.provider.jslp;
import ch.ethz.iks.slp.Advertiser;
import ch.ethz.iks.slp.Locator;
import org.eclipse.core.runtime.Assert;
import org.osgi.framework.*;
public class Activator implements BundleActivator {
// The shared instance
private static Activator plugin;
public static final String PLUGIN_ID = "org.eclipse.ecf.provider.jslp"; //$NON-NLS-1$
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
// we need to keep a ref on our context
// @see https://bugs.eclipse.org/bugs/show_bug.cgi?id=108214
private BundleContext bundleContext;
private LocatorDecorator locator = new NullPatternLocator();
private Advertiser advertiser = new NullPatternAdvertiser();
/**
* The constructor
*/
public Activator() {
plugin = this;
}
public Bundle getBundle() {
return bundleContext.getBundle();
}
public LocatorDecorator getLocator() {
Assert.isNotNull(locator);
return locator;
}
public Advertiser getAdvertiser() {
Assert.isNotNull(advertiser);
return advertiser;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext context) throws Exception {
bundleContext = context;
// initially get the locator and add a life cycle listener
final ServiceReference lRef = context.getServiceReference(Locator.class.getName());
if (lRef != null) {
locator = new LocatorDecoratorImpl((Locator) context.getService(lRef));
}
context.addServiceListener(new ServiceListener() {
public void serviceChanged(ServiceEvent event) {
switch (event.getType()) {
case ServiceEvent.REGISTERED :
Object service = bundleContext.getService(event.getServiceReference());
locator = new LocatorDecoratorImpl((Locator) service);
break;
case ServiceEvent.UNREGISTERING :
locator = new NullPatternLocator();
break;
}
}
}, "(" + Constants.OBJECTCLASS + "=" + Locator.class.getName() + ")"); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
// initially get the advertiser and add a life cycle listener
final ServiceReference aRef = context.getServiceReference(Advertiser.class.getName());
if (aRef != null) {
advertiser = (Advertiser) context.getService(aRef);
}
context.addServiceListener(new ServiceListener() {
public void serviceChanged(ServiceEvent event) {
switch (event.getType()) {
case ServiceEvent.REGISTERED :
advertiser = (Advertiser) bundleContext.getService(event.getServiceReference());
break;
case ServiceEvent.UNREGISTERING :
advertiser = new NullPatternAdvertiser();
break;
}
}
}, "(" + Constants.OBJECTCLASS + "=" + Advertiser.class.getName() + ")"); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$
//TODO-mkuppe https://bugs.eclipse.org/232813
// register the jSLP discovery service (will be automatically unregistered when this bundle gets uninstalled)
// JSLPDiscoveryContainer ids = new JSLPDiscoveryContainer();
// ids.connect(null, null);
// Properties props = new Properties();
// props.put(IDiscoveryService.CONTAINER_ID, ids.getID());
// props.put(IDiscoveryContainerAdapter.CONTAINER_CONNECT_TARGET, JSLPDiscoveryContainer.NAME);
// context.registerService(IDiscoveryService.class.getName(), ids, props);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext context) throws Exception {
//TODO-mkuppe here we should do something like a deregisterAll();
plugin = null;
bundleContext = null;
}
}
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