binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/osgi/AdaptingTracker.java

   1 /*
   2  * Copyright (c) 2018 Pantheon Technologies, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.mdsal.binding.dom.adapter.osgi;
   9
  10 import java.util.function.Function;
  11 import org.opendaylight.mdsal.binding.api.BindingService;
  12 import org.opendaylight.mdsal.dom.api.DOMService;
  13 import org.osgi.framework.BundleContext;
  14 import org.osgi.framework.ServiceReference;
  15 import org.osgi.framework.ServiceRegistration;
  16 import org.slf4j.Logger;
  17 import org.slf4j.LoggerFactory;
  18
  19 /**
  20  * A ServiceTracker which adapts a DOMService to a BindingService.
  21  *
  22  * @param <D> DOMService type
  23  * @param <B> BindingService type
  24  * @author Robert Varga
  25  */
  26 final class AdaptingTracker<D extends DOMService, B extends BindingService>
  27         extends AbstractAdaptingTracker<D, B, ServiceRegistration<B>> {
  28     private static final Logger LOG = LoggerFactory.getLogger(AdaptingTracker.class);
  29
  30     AdaptingTracker(final BundleContext ctx, final Class<D> domClass, final Class<B> bindingClass,
  31             final Function<D, B> bindingFactory) {
  32         super(ctx, domClass, bindingClass, bindingFactory);
  33     }
  34
  35     @Override
  36     ServiceRegistration<B> addingService(final ServiceReference<D> reference, final D dom, final B binding) {
  37         final Dict props = Dict.fromReference(reference);
  38         final ServiceRegistration<B> reg = context.registerService(bindingClass, binding, props);
  39         LOG.debug("Registered {} adapter {} of {} with {} as {}", bindingClass.getName(), binding, dom, props, reg);
  40         return reg;
  41     }
  42
  43     @Override
  44     void removedService(final ServiceRegistration<B> service) {
  45         service.unregister();
  46     }
  47
  48     @Override
  49     void updatedService(final ServiceReference<D> reference, final ServiceRegistration<B> service) {
  50         final Dict newProps = Dict.fromReference(reference);
  51         LOG.debug("Updating service {} with properties {}", service, newProps);
  52         service.setProperties(newProps);
  53     }
  54 }