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.data.api.schema.tree.DataTreeCandidate;
  17
  18 /**
  19  * Adapter wrapping Binding {@link DataTreeChangeListener} and exposing
  20  * it as {@link DOMDataTreeChangeListener} and translated DOM events
  21  * to their Binding equivalent.
  22  *
  23  */
  24 final class BindingDOMDataTreeChangeListenerAdapter implements DOMDataTreeChangeListener {
  25
  26     private final BindingToNormalizedNodeCodec codec;
  27     private final DataTreeChangeListener listener;
  28     private final LogicalDatastoreType store;
  29
  30     BindingDOMDataTreeChangeListenerAdapter(final BindingToNormalizedNodeCodec codec, final DataTreeChangeListener listener,
  31             final LogicalDatastoreType store) {
  32         this.codec = Preconditions.checkNotNull(codec);
  33         this.listener = Preconditions.checkNotNull(listener);
  34         this.store = Preconditions.checkNotNull(store);
  35     }
  36
  37     @Override
  38     public void onDataTreeChanged(final Collection<DataTreeCandidate> domChanges) {
  39         final Collection<DataTreeModification> bindingChanges = LazyDataTreeModification.from(codec, domChanges, store);
  40         listener.onDataTreeChanged(bindingChanges);
  41     }
  42 }