opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/config/yang/md/sal/binding/impl/NotificationBrokerImplModule.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.config.yang.md.sal.binding.impl;
   9
  10 import org.opendaylight.controller.md.sal.binding.api.NotificationPublishService;
  11 import org.opendaylight.controller.md.sal.binding.api.NotificationService;
  12 import org.opendaylight.controller.md.sal.binding.compat.HeliumNotificationProviderServiceAdapter;
  13 import org.opendaylight.controller.md.sal.binding.compat.HeliumNotificationProviderServiceWithInterestListeners;
  14 import org.opendaylight.controller.md.sal.binding.compat.HydrogenNotificationBrokerImpl;
  15 import org.opendaylight.controller.md.sal.binding.impl.BindingDOMNotificationPublishServiceAdapter;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationPublishService;
  17 import org.opendaylight.controller.md.sal.dom.spi.DOMNotificationSubscriptionListenerRegistry;
  18 import org.opendaylight.controller.sal.binding.codegen.impl.SingletonHolder;
  19
  20 /**
  21 *
  22 */
  23 public final class NotificationBrokerImplModule extends
  24         org.opendaylight.controller.config.yang.md.sal.binding.impl.AbstractNotificationBrokerImplModule {
  25
  26     public NotificationBrokerImplModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  27             final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
  28         super(identifier, dependencyResolver);
  29     }
  30
  31     public NotificationBrokerImplModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  32             final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
  33             final NotificationBrokerImplModule oldModule, final java.lang.AutoCloseable oldInstance) {
  34         super(identifier, dependencyResolver, oldModule, oldInstance);
  35     }
  36
  37     @Override
  38     public void validate() {
  39         super.validate();
  40         // Add custom validation for module attributes here.
  41     }
  42
  43     @Override
  44     public java.lang.AutoCloseable createInstance() {
  45
  46         final NotificationPublishService notificationPublishService = getNotificationPublishAdapterDependency();
  47         final NotificationService notificationService = getNotificationAdapterDependency();
  48
  49         if(notificationPublishService != null & notificationService != null) {
  50             return createHeliumAdapter(notificationPublishService,notificationService);
  51         }
  52
  53         /*
  54          *  FIXME: Switch to new broker (which has different threading model)
  55          *  once this change is communicated with downstream users or
  56          *  we will have adapter implementation which will honor Helium
  57          *  threading model for notifications.
  58          */
  59         return new HydrogenNotificationBrokerImpl(SingletonHolder.getDefaultNotificationExecutor());
  60     }
  61
  62     private static AutoCloseable createHeliumAdapter(final NotificationPublishService publishService,
  63             final NotificationService listenService) {
  64         if(publishService instanceof BindingDOMNotificationPublishServiceAdapter) {
  65             final BindingDOMNotificationPublishServiceAdapter casted = (BindingDOMNotificationPublishServiceAdapter) publishService;
  66             final DOMNotificationPublishService domService = casted.getDomPublishService();
  67             if(domService instanceof DOMNotificationSubscriptionListenerRegistry) {
  68                 final DOMNotificationSubscriptionListenerRegistry subsRegistry = (DOMNotificationSubscriptionListenerRegistry) domService;
  69                 return new HeliumNotificationProviderServiceWithInterestListeners(publishService, listenService, casted.getCodecRegistry(), subsRegistry);
  70             }
  71         }
  72         return new HeliumNotificationProviderServiceAdapter(publishService, listenService);
  73     }
  74 }