binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/osgi/DynamicBindingAdapter.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 com.google.common.collect.ImmutableList;
  11 import java.util.List;
  12 import javax.annotation.concurrent.GuardedBy;
  13 import org.opendaylight.mdsal.binding.api.BindingService;
  14 import org.opendaylight.mdsal.binding.api.DataBroker;
  15 import org.opendaylight.mdsal.binding.api.DataTreeService;
  16 import org.opendaylight.mdsal.binding.api.MountPointService;
  17 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  18 import org.opendaylight.mdsal.binding.api.NotificationService;
  19 import org.opendaylight.mdsal.binding.api.RpcConsumerRegistry;
  20 import org.opendaylight.mdsal.binding.api.RpcProviderService;
  21 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMDataBrokerAdapter;
  22 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMDataTreeServiceAdapter;
  23 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMMountPointServiceAdapter;
  24 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMNotificationPublishServiceAdapter;
  25 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMNotificationServiceAdapter;
  26 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMRpcProviderServiceAdapter;
  27 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMRpcServiceAdapter;
  28 import org.opendaylight.mdsal.binding.dom.adapter.BindingToNormalizedNodeCodec;
  29 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  30 import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
  31 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  32 import org.opendaylight.mdsal.dom.api.DOMNotificationPublishService;
  33 import org.opendaylight.mdsal.dom.api.DOMNotificationService;
  34 import org.opendaylight.mdsal.dom.api.DOMRpcProviderService;
  35 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  36 import org.opendaylight.mdsal.dom.api.DOMService;
  37 import org.osgi.framework.BundleContext;
  38 import org.osgi.util.tracker.ServiceTracker;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * A component which watches the OSGi Service Registry for known {@link DOMService}s and publishes corresponding
  44  * {@link BindingService}s backed by them.
  45  *
  46  * @author Robert Varga
  47  */
  48 public final class DynamicBindingAdapter implements AutoCloseable {
  49     private static final Logger LOG = LoggerFactory.getLogger(DynamicBindingAdapter.class);
  50
  51     @GuardedBy("this")
  52     private List<AdaptingTracker<?, ?>> trackers;
  53
  54     public DynamicBindingAdapter(final BindingToNormalizedNodeCodec codec, final BundleContext ctx) {
  55         trackers = ImmutableList.of(
  56             new AdaptingTracker<>(ctx, DOMDataBroker.class, DataBroker.class, codec,
  57                     BindingDOMDataBrokerAdapter::new),
  58             new AdaptingTracker<>(ctx, DOMDataTreeService.class, DataTreeService.class, codec,
  59                     BindingDOMDataTreeServiceAdapter::create),
  60             new AdaptingTracker<>(ctx, DOMMountPointService.class, MountPointService.class, codec,
  61                     BindingDOMMountPointServiceAdapter::new),
  62             new AdaptingTracker<>(ctx, DOMNotificationService.class, NotificationService.class, codec,
  63                     BindingDOMNotificationServiceAdapter::new),
  64             new AdaptingTracker<>(ctx, DOMNotificationPublishService.class, NotificationPublishService.class, codec,
  65                     BindingDOMNotificationPublishServiceAdapter::new),
  66             new AdaptingTracker<>(ctx, DOMRpcService.class, RpcConsumerRegistry.class, codec,
  67                     BindingDOMRpcServiceAdapter::new),
  68             new AdaptingTracker<>(ctx, DOMRpcProviderService.class, RpcProviderService.class, codec,
  69                     BindingDOMRpcProviderServiceAdapter::new));
  70
  71         LOG.debug("Starting {} DOMService trackers", trackers.size());
  72         trackers.forEach(ServiceTracker::open);
  73         LOG.info("{} DOMService trackers started", trackers.size());
  74     }
  75
  76     @Override
  77     public void close() {
  78         final List<AdaptingTracker<?, ?>> toClose;
  79         synchronized (this) {
  80             toClose = trackers;
  81             trackers = ImmutableList.of();
  82         }
  83
  84         LOG.debug("Stopping {} DOMService trackers", toClose.size());
  85         if (!toClose.isEmpty()) {
  86             toClose.forEach(AdaptingTracker::close);
  87             LOG.info("{} DOMService trackers stopped", toClose.size());
  88         }
  89     }
  90 }