opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/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.controller.md.sal.binding.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import java.util.Collection;
  12 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
  18
  19 /**
  20  * Adapter wrapping Binding {@link DataTreeChangeListener} and exposing
  21  * it as {@link DOMDataTreeChangeListener} and translated DOM events
  22  * to their Binding equivalent.
  23  *
  24  */
  25 final class BindingDOMDataTreeChangeListenerAdapter<T extends DataObject> implements DOMDataTreeChangeListener {
  26
  27     private final BindingToNormalizedNodeCodec codec;
  28     private final DataTreeChangeListener<T> listener;
  29     private final LogicalDatastoreType store;
  30
  31     BindingDOMDataTreeChangeListenerAdapter(final BindingToNormalizedNodeCodec codec, final DataTreeChangeListener<T> listener,
  32             final LogicalDatastoreType store) {
  33         this.codec = Preconditions.checkNotNull(codec);
  34         this.listener = Preconditions.checkNotNull(listener);
  35         this.store = Preconditions.checkNotNull(store);
  36     }
  37
  38     @Override
  39     public void onDataTreeChanged(final Collection<DataTreeCandidate> domChanges) {
  40         final Collection<DataTreeModification<T>> bindingChanges = LazyDataTreeModification.from(codec, domChanges, store);
  41         listener.onDataTreeChanged(bindingChanges);
  42     }
  43 }