opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/sal/binding/impl/AbstractNotificationListenerRegistration.java

   1 /*
   2  * Copyright (c) 2014 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.sal.binding.impl;
   9
  10 import org.opendaylight.controller.sal.binding.api.NotificationListener;
  11 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  12 import org.opendaylight.yangtools.yang.binding.Notification;
  13
  14 import com.google.common.base.Preconditions;
  15
  16 /**
  17  * Abstract implementation of {@link NotificationListenerRegistration}.
  18  *
  19  * @param <T> Notification type
  20  */
  21 abstract class AbstractNotificationListenerRegistration<T extends Notification> extends AbstractListenerRegistration<NotificationListener<T>> implements NotificationListenerRegistration<T> {
  22     private final Class<? extends Notification> type;
  23
  24     protected AbstractNotificationListenerRegistration(final Class<? extends Notification> type, final NotificationListener<T> listener) {
  25         super(listener);
  26         this.type = Preconditions.checkNotNull(type);
  27     }
  28
  29     @Override
  30     public Class<? extends Notification> getType() {
  31         return type;
  32     }
  33
  34     @Override
  35     @SuppressWarnings("unchecked")
  36     public void notify(final Notification notification) {
  37         if (!isClosed()) {
  38             getInstance().onNotification((T)notification);
  39         }
  40     }
  41 }