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/****************************************************************************
* Copyright (c) 2008 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.examples.remoteservices.server;
import org.eclipse.ecf.discovery.service.IDiscoveryService;
import org.eclipse.osgi.service.environment.EnvironmentInfo;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
/**
* The activator class controls the plug-in life cycle
*/
public class Activator implements BundleActivator {
// The shared instance
private static Activator plugin;
private BundleContext context;
private ServiceTracker environmentInfoTracker;
private ServiceTracker discoveryTracker;
/**
* The constructor
*/
public Activator() {
// nothing
}
public EnvironmentInfo getEnvironmentInfo() {
if (environmentInfoTracker == null) {
environmentInfoTracker = new ServiceTracker(context, org.eclipse.osgi.service.environment.EnvironmentInfo.class.getName(), null);
environmentInfoTracker.open();
}
return (EnvironmentInfo) environmentInfoTracker.getService();
}
public IDiscoveryService getDiscoveryService(int waittime) throws InterruptedException {
if (discoveryTracker == null) {
discoveryTracker = new ServiceTracker(context, org.eclipse.ecf.discovery.service.IDiscoveryService.class.getName(), null);
discoveryTracker.open();
}
return (IDiscoveryService) discoveryTracker.waitForService(waittime);
}
/*
* (non-Javadoc)
* @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext ctxt) throws Exception {
plugin = this;
this.context = ctxt;
}
/*
* (non-Javadoc)
* @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext ctxt) throws Exception {
plugin = null;
if (environmentInfoTracker != null) {
environmentInfoTracker.close();
environmentInfoTracker = null;
}
if (discoveryTracker != null) {
discoveryTracker.close();
discoveryTracker = null;
}
this.context = null;
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
}
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