binding2/mdsal-binding2-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/adapter/impl/mountpoint/BindingDOMMountPointListenerAdapter.java

   1 /*
   2  * Copyright (c) 2017 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.javav2.dom.adapter.impl.mountpoint;
   9
  10 import com.google.common.annotations.Beta;
  11 import java.util.Optional;
  12 import javax.annotation.Nonnull;
  13 import org.opendaylight.mdsal.binding.javav2.api.MountPointListener;
  14 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.BindingToNormalizedNodeCodec;
  15 import org.opendaylight.mdsal.binding.javav2.spec.base.InstanceIdentifier;
  16 import org.opendaylight.mdsal.binding.javav2.spec.base.TreeNode;
  17 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
  18 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  19 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  22
  23 /**
  24  * Mount point listener adapter.
  25  *
  26  * @param <T>
  27  *            - {@link MountPointListener} type
  28  */
  29 @Beta
  30 public final class BindingDOMMountPointListenerAdapter<T extends MountPointListener>
  31         implements ListenerRegistration<T>, DOMMountPointListener {
  32
  33     private final T listener;
  34     private final ListenerRegistration<DOMMountPointListener> registration;
  35     private final BindingToNormalizedNodeCodec codec;
  36
  37     public BindingDOMMountPointListenerAdapter(final T listener, final BindingToNormalizedNodeCodec codec,
  38             final DOMMountPointService mountService) {
  39         this.listener = listener;
  40         this.codec = codec;
  41         this.registration = mountService.registerProvisionListener(this);
  42     }
  43
  44     @Nonnull
  45     @Override
  46     public T getInstance() {
  47         return listener;
  48     }
  49
  50     @Override
  51     public void close() {
  52         registration.close();
  53     }
  54
  55     @Override
  56     public void onMountPointCreated(final YangInstanceIdentifier path) {
  57         try {
  58             final InstanceIdentifier<? extends TreeNode> bindingPath = toBinding(path);
  59             listener.onMountPointCreated(bindingPath);
  60         } catch (final DeserializationException e) {
  61             BindingDOMMountPointServiceAdapter.LOG.error("Unable to translate mountPoint path {}." + " Omitting event.",
  62                     path, e);
  63         }
  64     }
  65
  66     private InstanceIdentifier<? extends TreeNode> toBinding(final YangInstanceIdentifier path)
  67             throws DeserializationException {
  68         final Optional<InstanceIdentifier<? extends TreeNode>> instanceIdentifierOptional = codec.toBinding(path);
  69         if (instanceIdentifierOptional.isPresent()) {
  70             return instanceIdentifierOptional.get();
  71         } else {
  72             throw new DeserializationException("Deserialization unsuccessful, " + instanceIdentifierOptional);
  73         }
  74     }
  75
  76     @Override
  77     public void onMountPointRemoved(final YangInstanceIdentifier path) {
  78         try {
  79             final InstanceIdentifier<? extends TreeNode> bindingPath = toBinding(path);
  80             listener.onMountPointRemoved(bindingPath);
  81         } catch (final DeserializationException e) {
  82             BindingDOMMountPointServiceAdapter.LOG.error("Unable to translate mountPoint path {}." + " Omitting event.",
  83                     path, e);
  84         }
  85     }
  86 }