opendaylight/md-sal/sal-binding-util/src/main/java/org/opendaylight/controller/md/sal/binding/util/AbstractBindingSalConsumerInstance.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.md.sal.binding.util;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.controller.sal.binding.api.NotificationListener;
  12 import org.opendaylight.controller.sal.binding.api.NotificationService;
  13 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
  14 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  15 import org.opendaylight.yangtools.yang.binding.Notification;
  16 import org.opendaylight.yangtools.yang.binding.RpcService;
  17
  18 public abstract class AbstractBindingSalConsumerInstance<N extends NotificationService, R extends RpcConsumerRegistry>
  19         implements RpcConsumerRegistry, NotificationService {
  20
  21     private final R rpcRegistry;
  22     private final N notificationBroker;
  23
  24     protected final R getRpcRegistry() {
  25         return rpcRegistry;
  26     }
  27
  28     protected final N getNotificationBroker() {
  29         return notificationBroker;
  30     }
  31
  32     protected final R getRpcRegistryChecked() {
  33         Preconditions.checkState(rpcRegistry != null,"Rpc Registry is not available.");
  34         return rpcRegistry;
  35     }
  36
  37     protected final N getNotificationBrokerChecked() {
  38         Preconditions.checkState(notificationBroker != null,"Notification Broker is not available.");
  39         return notificationBroker;
  40     }
  41
  42     protected AbstractBindingSalConsumerInstance(R rpcRegistry, N notificationBroker) {
  43         this.rpcRegistry = rpcRegistry;
  44         this.notificationBroker = notificationBroker;
  45     }
  46
  47     @Override
  48     public <T extends RpcService> T getRpcService(Class<T> module) {
  49         return getRpcRegistryChecked().getRpcService(module);
  50     }
  51
  52     @Override
  53     public <T extends Notification> ListenerRegistration<NotificationListener<T>> registerNotificationListener(
  54             Class<T> notificationType, NotificationListener<T> listener) {
  55         return getNotificationBrokerChecked().registerNotificationListener(notificationType, listener);
  56     }
  57
  58     @Override
  59     public ListenerRegistration<org.opendaylight.yangtools.yang.binding.NotificationListener>
  60             registerNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) {
  61         return getNotificationBrokerChecked().registerNotificationListener(listener);
  62     }
  63 }