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

   1 /*
   2  * Copyright (c) 2022 PANTHEON.tech, 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;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ClassToInstanceMap;
  13 import com.google.common.collect.ImmutableSet;
  14 import java.util.Set;
  15 import java.util.concurrent.Executor;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.mdsal.binding.api.InstanceNotificationService;
  18 import org.opendaylight.mdsal.binding.api.InstanceNotificationSpec;
  19 import org.opendaylight.mdsal.binding.dom.adapter.BindingDOMAdapterBuilder.Factory;
  20 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  21 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  22 import org.opendaylight.mdsal.dom.api.DOMInstanceNotificationListener;
  23 import org.opendaylight.mdsal.dom.api.DOMInstanceNotificationService;
  24 import org.opendaylight.mdsal.dom.api.DOMService;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.opendaylight.yangtools.yang.binding.DataObject;
  27 import org.opendaylight.yangtools.yang.binding.Identifiable;
  28 import org.opendaylight.yangtools.yang.binding.Identifier;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.binding.InstanceNotification;
  31 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
  32 import org.opendaylight.yangtools.yang.binding.KeyedListNotification;
  33
  34 final class InstanceNotificationServiceAdapter implements InstanceNotificationService {
  35     private static final class Builder extends BindingDOMAdapterBuilder<InstanceNotificationService> {
  36         Builder(final AdapterContext adapterContext) {
  37             super(adapterContext);
  38         }
  39
  40         @Override
  41         protected InstanceNotificationService createInstance(final ClassToInstanceMap<DOMService> delegates) {
  42             return new InstanceNotificationServiceAdapter(adapterContext(),
  43                 delegates.getInstance(DOMInstanceNotificationService.class));
  44         }
  45
  46         @Override
  47         public Set<? extends Class<? extends DOMService>> getRequiredDelegates() {
  48             return ImmutableSet.of(DOMInstanceNotificationService.class);
  49         }
  50     }
  51
  52     static final Factory<InstanceNotificationService> BUILDER_FACTORY = Builder::new;
  53
  54     private final AdapterContext adapterContext;
  55     private final DOMInstanceNotificationService domNotifService;
  56
  57     private InstanceNotificationServiceAdapter(final AdapterContext adapterContext,
  58             final DOMInstanceNotificationService domNotifService) {
  59         this.adapterContext = requireNonNull(adapterContext);
  60         this.domNotifService = requireNonNull(domNotifService);
  61     }
  62
  63     @Override
  64     public <P extends DataObject, N extends InstanceNotification<N, P>> Registration registerListener(
  65             final InstanceNotificationSpec<N, P> spec, final InstanceIdentifier<P> path, final Listener<P, N> listener,
  66             final Executor executor) {
  67         return registerListener(spec, path,
  68             new InstanceNotificationListenerAdapter<>(adapterContext, spec.type(), listener, executor));
  69     }
  70
  71     @Override
  72     public <P extends DataObject & Identifiable<K>, N extends KeyedListNotification<N, P, K>, K extends Identifier<P>>
  73             Registration registerListener(final InstanceNotificationSpec<N, P> spec,
  74                 final KeyedInstanceIdentifier<P, K> path, final KeyedListListener<P, N, K> listener,
  75                 final Executor executor) {
  76         return registerListener(spec, path,
  77             new KeyedInstanceNotificationListenerAdapter<>(adapterContext, spec.type(), listener, executor));
  78     }
  79
  80     private @NonNull Registration registerListener(final @NonNull InstanceNotificationSpec<?, ?> spec,
  81             final @NonNull InstanceIdentifier<?> path, final @NonNull DOMInstanceNotificationListener listener) {
  82         final var serializer = adapterContext.currentSerializer();
  83         return domNotifService.registerNotificationListener(
  84             new DOMDataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, serializer.toYangInstanceIdentifier(path)),
  85             serializer.getNotificationPath(spec).lastNodeIdentifier(), listener);
  86     }
  87 }