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 com.google.common.base.Verify.verifyNotNull;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  14 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeSerializer;
  15 import org.opendaylight.mdsal.eos.binding.api.Entity;
  16 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipChange;
  17 import org.opendaylight.mdsal.eos.binding.api.EntityOwnershipListener;
  18 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
  19 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipChange;
  20 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListener;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  23 import org.slf4j.Logger;
  24 import org.slf4j.LoggerFactory;
  25
  26 /**
  27  * Adapter that bridges between the binding and DOM EntityOwnershipListener interfaces.
  28  *
  29  * @author Thomas Pantelis
  30  */
  31 class DOMEntityOwnershipListenerAdapter implements DOMEntityOwnershipListener {
  32     private static final Logger LOG = LoggerFactory.getLogger(DOMEntityOwnershipListenerAdapter.class);
  33
  34     private final BindingNormalizedNodeSerializer conversionCodec;
  35     private final EntityOwnershipListener bindingListener;
  36
  37     DOMEntityOwnershipListenerAdapter(final EntityOwnershipListener bindingListener,
  38             final BindingNormalizedNodeSerializer conversionCodec) {
  39         this.bindingListener = requireNonNull(bindingListener);
  40         this.conversionCodec = requireNonNull(conversionCodec);
  41     }
  42
  43     @Override
  44     @SuppressWarnings("checkstyle:IllegalCatch")
  45     @SuppressFBWarnings(value = "BC_UNCONFIRMED_CAST_OF_RETURN_VALUE", justification = "generic getEntity()")
  46     public void ownershipChanged(final DOMEntityOwnershipChange ownershipChange) {
  47         final DOMEntity domEntity = ownershipChange.getEntity();
  48         final YangInstanceIdentifier domId = domEntity.getIdentifier();
  49         final InstanceIdentifier<?> bindingId;
  50         try {
  51             bindingId = verifyNotNull(conversionCodec.fromYangInstanceIdentifier(domId));
  52         } catch (RuntimeException e) {
  53             LOG.error("Error converting DOM entity ID {} to binding InstanceIdentifier", domId, e);
  54             return;
  55         }
  56
  57         final Entity bindingEntity = new Entity(domEntity.getType(), bindingId);
  58         final EntityOwnershipChange change = new EntityOwnershipChange(bindingEntity,
  59             ownershipChange.getState(), ownershipChange.inJeopardy());
  60         try {
  61             bindingListener.ownershipChanged(change);
  62         } catch (Exception e) {
  63             LOG.error("Listener {} failed during change notification {}", bindingListener, change, e);
  64         }
  65     }
  66 }