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 static java.util.Objects.requireNonNull;
  11
  12 import org.opendaylight.mdsal.binding.api.MountPointService.MountPointListener;
  13 import org.opendaylight.mdsal.dom.api.DOMMountPointListener;
  14 import org.opendaylight.mdsal.dom.api.DOMMountPointService;
  15 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 final class BindingDOMMountPointListenerAdapter<T extends MountPointListener> implements
  24             ListenerRegistration<T>, DOMMountPointListener {
  25     private static final Logger LOG = LoggerFactory.getLogger(BindingDOMMountPointListenerAdapter.class);
  26
  27     private final T listener;
  28     private final ListenerRegistration<DOMMountPointListener> registration;
  29     private final AdapterContext adapterContext;
  30
  31     BindingDOMMountPointListenerAdapter(final T listener, final AdapterContext adapterContext,
  32             final DOMMountPointService mountService) {
  33         this.listener = requireNonNull(listener);
  34         this.adapterContext = requireNonNull(adapterContext);
  35         this.registration = mountService.registerProvisionListener(this);
  36     }
  37
  38     @Override
  39     public T getInstance() {
  40         return listener;
  41     }
  42
  43     @Override
  44     public void close() {
  45         registration.close();
  46     }
  47
  48     @Override
  49     public void onMountPointCreated(final YangInstanceIdentifier path) {
  50         try {
  51             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  52             listener.onMountPointCreated(bindingPath);
  53         } catch (final DeserializationException e) {
  54             LOG.error("Unable to translate mountPoint path {}. Omitting event.", path, e);
  55         }
  56     }
  57
  58     @Override
  59     public void onMountPointRemoved(final YangInstanceIdentifier path) {
  60         try {
  61             final InstanceIdentifier<? extends DataObject> bindingPath = toBinding(path);
  62             listener.onMountPointRemoved(bindingPath);
  63         } catch (final DeserializationException e) {
  64             LOG.error("Unable to translate mountPoint path {}. Omitting event.", path, e);
  65         }
  66     }
  67
  68     private InstanceIdentifier<? extends DataObject> toBinding(final YangInstanceIdentifier path)
  69             throws DeserializationException {
  70         final InstanceIdentifier<?> binding;
  71         try {
  72             binding = adapterContext.currentSerializer().fromYangInstanceIdentifier(path);
  73         } catch (IllegalArgumentException e) {
  74             throw new DeserializationException("Deserialization unsuccessful, " + path, e);
  75         }
  76         if (binding == null) {
  77             throw new DeserializationException("Deserialization unsuccessful, " + path);
  78         }
  79         return binding;
  80     }
  81
  82
  83 }