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