/*******************************************************************************
* Copyright (c) 2010 Neil Bartlett.
* 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:
* Neil Bartlett - initial API and implementation
*******************************************************************************/
package bndtools.utils;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
public class ServiceUtils {
public static final <R, S, E extends Throwable> R usingService(BundleContext context, Class<S> clazz, ServiceOperation<R,S,E> operation) throws E {
ServiceReference reference = context.getServiceReference(clazz.getName());
if (reference != null) {
@SuppressWarnings("unchecked")
S service = (S) context.getService(reference);
if (service != null) {
try {
return operation.execute(service);
} finally {
context.ungetService(reference);
}
}
}
return null;
}
}