/*******************************************************************************
* Copyright (c) 2009 EclipseSource 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:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.ecf.tutorial.internal.distribution.common;
import org.eclipse.osgi.service.environment.EnvironmentInfo;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
public class Activator implements BundleActivator {
private static Activator activator;
private BundleContext context;
private ServiceTracker environmentInfoServiceTracker;
public static Activator getDefault() {
return activator;
}
public void start(BundleContext context) throws Exception {
activator = this;
this.context = context;
}
public void stop(BundleContext context) throws Exception {
if (environmentInfoServiceTracker != null) {
environmentInfoServiceTracker.close();
environmentInfoServiceTracker = null;
}
this.context = null;
}
public EnvironmentInfo getEnvironmentInfo() {
if (environmentInfoServiceTracker == null) {
environmentInfoServiceTracker = new ServiceTracker(context,EnvironmentInfo.class.getName(),null);
environmentInfoServiceTracker.open();
}
return (EnvironmentInfo) environmentInfoServiceTracker.getService();
}
}