entityownership/mdsal-eos-binding-adapter/src/main/java/org/opendaylight/mdsal/eos/binding/dom/adapter/DOMEntityOwnershipListenerAdapter.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications 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.eos.binding.dom.adapter;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  13 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  14 import org.opendaylight.mdsal.eos.binding.api.Entity;
  15 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipChange;
  16 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListener;
  17 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
  18 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipChange;
  19 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListener;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 /**
  26  * Adapter that bridges between the binding and DOM EntityOwnershipListener interfaces.
  27  *
  28  * @author Thomas Pantelis
  29  */
  30 class DOMEntityOwnershipListenerAdapter implements DOMEntityOwnershipListener {
  31     private static final Logger LOG = LoggerFactory.getLogger(DOMEntityOwnershipListenerAdapter.class);
  32
  33     private final BindingNormalizedNodeSerializer conversionCodec;
  34     private final EntityOwnershipListener bindingListener;
  35
  36     DOMEntityOwnershipListenerAdapter(final EntityOwnershipListener bindingListener,
  37             final BindingNormalizedNodeSerializer conversionCodec) {
  38         this.bindingListener = requireNonNull(bindingListener);
  39         this.conversionCodec = requireNonNull(conversionCodec);
  40     }
  41
  42     @Override
  43     @SuppressWarnings("checkstyle:IllegalCatch")
  44     @SuppressFBWarnings(value = "BC_UNCONFIRMED_CAST_OF_RETURN_VALUE", justification = "generic getEntity()")
  45     public void ownershipChanged(final DOMEntityOwnershipChange ownershipChange) {
  46         final DOMEntity domEntity = ownershipChange.getEntity();
  47         final YangInstanceIdentifier domId = domEntity.getIdentifier();
  48         final InstanceIdentifier<?> bindingId;
  49         try {
  50             bindingId = conversionCodec.coerceFromYangInstanceIdentifier(domId);
  51         } catch (RuntimeException e) {
  52             LOG.error("Error converting DOM entity ID {} to binding InstanceIdentifier", domId, e);
  53             return;
  54         }
  55
  56         final Entity bindingEntity = new Entity(domEntity.getType(), bindingId);
  57         final EntityOwnershipChange change = new EntityOwnershipChange(bindingEntity,
  58             ownershipChange.getState(), ownershipChange.inJeopardy());
  59         try {
  60             bindingListener.ownershipChanged(change);
  61         } catch (Exception e) {
  62             LOG.error("Listener {} failed during change notification {}", bindingListener, change, e);
  63         }
  64     }
  65 }