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

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. 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 java.util.Optional;
  11 import org.opendaylight.mdsal.binding.api.MountPointService.MountPointListener;
  12 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
  13 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  14 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  15 import org.opendaylight.yangtools.yang.binding.DataObject;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 final class BindingDOMMountPointListenerAdapter<T extends MountPointListener> implements
  23             ListenerRegistration<T>, DOMMountPointListener {
  24     private static final Logger LOG = LoggerFactory.getLogger(BindingDOMMountPointListenerAdapter.class);
  25
  26     private final T listener;
  27     private final ListenerRegistration<DOMMountPointListener> registration;
  28     private final BindingToNormalizedNodeCodec codec;
  29
  30     BindingDOMMountPointListenerAdapter(final T listener, final BindingToNormalizedNodeCodec codec,
  31             final DOMMountPointService mountService) {
  32         this.listener = listener;
  33         this.codec = codec;
  34         this.registration = mountService.registerProvisionListener(this);
  35     }
  36
  37     @Override
  38     public T getInstance() {
  39         return listener;
  40     }
  41
  42     @Override
  43     public void close() {
  44         registration.close();
  45     }
  46
  47     @Override
  48     public void onMountPointCreated(final YangInstanceIdentifier path) {
  49         try {
  50             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  51             listener.onMountPointCreated(bindingPath);
  52         } catch (final DeserializationException e) {
  53             LOG.error("Unable to translate mountPoint path {}. Omitting event.", path, e);
  54         }
  55     }
  56
  57     private InstanceIdentifier<? extends DataObject> toBinding(final YangInstanceIdentifier path)
  58             throws DeserializationException {
  59         final Optional<InstanceIdentifier<? extends DataObject>> instanceIdentifierOptional = codec.toBinding(path);
  60         if (instanceIdentifierOptional.isPresent()) {
  61             return instanceIdentifierOptional.get();
  62         }
  63
  64         throw new DeserializationException("Deserialization unsuccessful, " + instanceIdentifierOptional);
  65     }
  66
  67     @Override
  68     public void onMountPointRemoved(final YangInstanceIdentifier path) {
  69         try {
  70             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  71             listener.onMountPointRemoved(bindingPath);
  72         } catch (final DeserializationException e) {
  73             LOG.error("Unable to translate mountPoint path {}. Omitting event.", path, e);
  74         }
  75     }
  76 }