opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/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.controller.md.sal.binding.impl;
   9
  10 import com.google.common.base.Optional;
  11 import org.opendaylight.controller.md.sal.binding.api.MountPointService.MountPointListener;
  12 import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
  13 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
  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
  20 final class BindingDOMMountPointListenerAdapter<T extends MountPointListener>
  21         implements ListenerRegistration<T>, DOMMountPointListener {
  22
  23     private final T listener;
  24     private final ListenerRegistration<DOMMountPointListener> registration;
  25     private final BindingToNormalizedNodeCodec codec;
  26
  27     BindingDOMMountPointListenerAdapter(final T listener, final BindingToNormalizedNodeCodec codec,
  28             final DOMMountPointService mountService) {
  29         this.listener = listener;
  30         this.codec = codec;
  31         this.registration = mountService.registerProvisionListener(this);
  32     }
  33
  34     @Override
  35     public T getInstance() {
  36         return listener;
  37     }
  38
  39     @Override
  40     public void close() {
  41         registration.close();
  42     }
  43
  44     @Override
  45     public void onMountPointCreated(final YangInstanceIdentifier path) {
  46         try {
  47             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  48             listener.onMountPointCreated(bindingPath);
  49         } catch (final DeserializationException e) {
  50             BindingDOMMountPointServiceAdapter.LOG.error("Unable to translate mountPoint path {}. Omitting event.",
  51                     path, e);
  52         }
  53
  54     }
  55
  56     private InstanceIdentifier<? extends DataObject> toBinding(final YangInstanceIdentifier path)
  57             throws DeserializationException {
  58         final Optional<InstanceIdentifier<? extends DataObject>> instanceIdentifierOptional = codec.toBinding(path);
  59         if (instanceIdentifierOptional.isPresent()) {
  60             return instanceIdentifierOptional.get();
  61         } else {
  62             throw new DeserializationException("Deserialization unsuccessful, " + instanceIdentifierOptional);
  63         }
  64     }
  65
  66     @Override
  67     public void onMountPointRemoved(final YangInstanceIdentifier path) {
  68         try {
  69             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  70             listener.onMountPointRemoved(bindingPath);
  71         } catch (final DeserializationException e) {
  72             BindingDOMMountPointServiceAdapter.LOG.error("Unable to translate mountPoint path {}. Omitting event.",
  73                     path, e);
  74         }
  75     }
  76 }