binding/mdsal-binding-dom-adapter/src/main/java/org/opendaylight/mdsal/binding/dom/adapter/BindingDOMDataTreeChangeListenerAdapter.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 java.util.Collection;
  13 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  14 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  16 import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
  17 import org.opendaylight.yangtools.yang.binding.DataObject;
  18 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  19
  20 /**
  21  * Adapter wrapping Binding {@link DataTreeChangeListener} and exposing it as {@link DOMDataTreeChangeListener}
  22  * and translated DOM events to their Binding equivalent.
  23  */
  24 class BindingDOMDataTreeChangeListenerAdapter<T extends DataObject> implements DOMDataTreeChangeListener {
  25
  26     private final BindingToNormalizedNodeCodec codec;
  27     private final DataTreeChangeListener<T> listener;
  28     private final LogicalDatastoreType store;
  29
  30     BindingDOMDataTreeChangeListenerAdapter(final BindingToNormalizedNodeCodec codec,
  31             final DataTreeChangeListener<T> listener, final LogicalDatastoreType store) {
  32         this.codec = requireNonNull(codec);
  33         this.listener = requireNonNull(listener);
  34         this.store = requireNonNull(store);
  35     }
  36
  37     @Override
  38     public void onDataTreeChanged(final Collection<DataTreeCandidate> domChanges) {
  39         final Collection<DataTreeModification<T>> bindingChanges = LazyDataTreeModification.from(codec, domChanges,
  40             store);
  41         listener.onDataTreeChanged(bindingChanges);
  42     }
  43
  44     @Override
  45     public void onInitialData() {
  46         listener.onInitialData();
  47     }
  48 }