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 org.opendaylight.controller.sal.binding.api.NotificationListener;
  11 import org.opendaylight.controller.sal.binding.api.NotificationService;
  12 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
  13 import org.opendaylight.controller.sal.binding.api.data.DataBrokerService;
  14 import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
  15 import org.opendaylight.controller.sal.binding.api.data.DataModificationTransaction;
  16 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  17 import org.opendaylight.yangtools.concepts.Registration;
  18 import org.opendaylight.yangtools.yang.binding.DataObject;
  19 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.binding.Notification;
  21 import org.opendaylight.yangtools.yang.binding.RpcService;
  22
  23 import com.google.common.base.Preconditions;
  24
  25 public abstract class AbstractBindingSalConsumerInstance<D extends DataBrokerService, N extends NotificationService, R extends RpcConsumerRegistry> //
  26         implements //
  27         RpcConsumerRegistry, //
  28         NotificationService, //
  29         DataBrokerService {
  30
  31     private final R rpcRegistry;
  32     private final N notificationBroker;
  33     private final D dataBroker;
  34
  35     protected final R getRpcRegistry() {
  36         return rpcRegistry;
  37     }
  38
  39     protected final N getNotificationBroker() {
  40         return notificationBroker;
  41     }
  42
  43     protected final D getDataBroker() {
  44         return dataBroker;
  45     }
  46
  47     protected final R getRpcRegistryChecked() {
  48         Preconditions.checkState(rpcRegistry != null,"Rpc Registry is not available.");
  49         return rpcRegistry;
  50     }
  51
  52     protected final N getNotificationBrokerChecked() {
  53         Preconditions.checkState(notificationBroker != null,"Notification Broker is not available.");
  54         return notificationBroker;
  55     }
  56
  57     protected final D getDataBrokerChecked() {
  58         Preconditions.checkState(dataBroker != null, "Data Broker is not available");
  59         return dataBroker;
  60     }
  61
  62
  63     protected AbstractBindingSalConsumerInstance(R rpcRegistry, N notificationBroker, D dataBroker) {
  64         this.rpcRegistry = rpcRegistry;
  65         this.notificationBroker = notificationBroker;
  66         this.dataBroker = dataBroker;
  67     }
  68
  69     @Override
  70     public <T extends RpcService> T getRpcService(Class<T> module) {
  71         return getRpcRegistryChecked().getRpcService(module);
  72     }
  73
  74     @Override
  75     public <T extends Notification> Registration<NotificationListener<T>> registerNotificationListener(
  76             Class<T> notificationType, NotificationListener<T> listener) {
  77         return getNotificationBrokerChecked().registerNotificationListener(notificationType, listener);
  78     }
  79
  80     @Override
  81     public Registration<org.opendaylight.yangtools.yang.binding.NotificationListener> registerNotificationListener(
  82             org.opendaylight.yangtools.yang.binding.NotificationListener listener) {
  83         return getNotificationBrokerChecked().registerNotificationListener(listener);
  84     }
  85
  86     @Override
  87     public DataModificationTransaction beginTransaction() {
  88         return getDataBrokerChecked().beginTransaction();
  89     }
  90
  91     @Override
  92     @Deprecated
  93     public DataObject readConfigurationData(InstanceIdentifier<? extends DataObject> path) {
  94         return getDataBrokerChecked().readConfigurationData(path);
  95     }
  96
  97     @Override
  98     public DataObject readOperationalData(InstanceIdentifier<? extends DataObject> path) {
  99         return getDataBrokerChecked().readOperationalData(path);
 100     }
 101
 102     @Override
 103     @Deprecated
 104     public ListenerRegistration<DataChangeListener> registerDataChangeListener(
 105             InstanceIdentifier<? extends DataObject> path, DataChangeListener listener) {
 106         return getDataBrokerChecked().registerDataChangeListener(path, listener);
 107     }
 108 }