opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/DOMDataTreeChangeServiceAdapter.java

   1 /*
   2  * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.sal.core.compat;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ForwardingObject;
  13 import org.opendaylight.controller.md.sal.dom.api.ClusteredDOMDataTreeChangeListener;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeService;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
  17 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  18 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  19
  20 @Deprecated
  21 public class DOMDataTreeChangeServiceAdapter extends ForwardingObject
  22         implements org.opendaylight.mdsal.dom.api.DOMDataTreeChangeService {
  23
  24     private final DOMDataTreeChangeService delegate;
  25
  26     DOMDataTreeChangeServiceAdapter(final DOMDataTreeChangeService delegate) {
  27         this.delegate = requireNonNull(delegate);
  28     }
  29
  30     @Override
  31     public <L extends org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener> ListenerRegistration<L>
  32             registerDataTreeChangeListener(final org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier treeId,
  33                     final L listener) {
  34         final DOMDataTreeChangeListener delegateListener;
  35         if (listener instanceof org.opendaylight.mdsal.dom.api.ClusteredDOMDataTreeChangeListener) {
  36             delegateListener = (ClusteredDOMDataTreeChangeListener) listener::onDataTreeChanged;
  37         } else {
  38             delegateListener = listener::onDataTreeChanged;
  39         }
  40         final ListenerRegistration<?> reg = delegate().registerDataTreeChangeListener(
  41             DOMDataTreeIdentifier.fromMdsal(treeId), delegateListener);
  42
  43         return new AbstractListenerRegistration<L>(listener) {
  44             @Override
  45             protected void removeRegistration() {
  46                 reg.close();
  47             }
  48         };
  49     }
  50
  51     @Override
  52     protected DOMDataTreeChangeService delegate() {
  53         return delegate;
  54     }
  55 }