opendaylight/md-sal/sal-binding-config/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.binding.impl.BindingDOMNotificationServiceAdapter;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationPublishService;
  18 import org.opendaylight.controller.md.sal.dom.spi.DOMNotificationSubscriptionListenerRegistry;
  19 import org.opendaylight.controller.sal.binding.codegen.impl.SingletonHolder;
  20
  21 /**
  22  * @deprecated Replaced by blueprint wiring
  23  */
  24 @Deprecated
  25 public final class NotificationBrokerImplModule extends
  26         org.opendaylight.controller.config.yang.md.sal.binding.impl.AbstractNotificationBrokerImplModule {
  27
  28     public NotificationBrokerImplModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  29             final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver) {
  30         super(identifier, dependencyResolver);
  31     }
  32
  33     public NotificationBrokerImplModule(final org.opendaylight.controller.config.api.ModuleIdentifier identifier,
  34             final org.opendaylight.controller.config.api.DependencyResolver dependencyResolver,
  35             final NotificationBrokerImplModule oldModule, final java.lang.AutoCloseable oldInstance) {
  36         super(identifier, dependencyResolver, oldModule, oldInstance);
  37     }
  38
  39     @Override
  40     public void validate() {
  41         super.validate();
  42         // Add custom validation for module attributes here.
  43     }
  44
  45     @Override
  46     public java.lang.AutoCloseable createInstance() {
  47
  48         final NotificationPublishService notificationPublishService = getNotificationPublishAdapterDependency();
  49         final NotificationService notificationService = getNotificationAdapterDependency();
  50
  51         if(notificationPublishService != null & notificationService != null) {
  52             return createHeliumAdapter(notificationPublishService,notificationService);
  53         }
  54
  55         /*
  56          *  FIXME: Switch to new broker (which has different threading model)
  57          *  once this change is communicated with downstream users or
  58          *  we will have adapter implementation which will honor Helium
  59          *  threading model for notifications.
  60          */
  61         return new HydrogenNotificationBrokerImpl(SingletonHolder.getDefaultNotificationExecutor());
  62     }
  63
  64     private static AutoCloseable createHeliumAdapter(final NotificationPublishService publishService,
  65             final NotificationService listenService) {
  66         if (listenService instanceof BindingDOMNotificationServiceAdapter
  67                 && publishService instanceof BindingDOMNotificationPublishServiceAdapter) {
  68             final BindingDOMNotificationPublishServiceAdapter castedPublish =
  69                     (BindingDOMNotificationPublishServiceAdapter) publishService;
  70             final BindingDOMNotificationServiceAdapter castedListen =
  71                     (BindingDOMNotificationServiceAdapter) listenService;
  72             final DOMNotificationPublishService domPublishService = castedPublish.getDomPublishService();
  73             if (domPublishService instanceof DOMNotificationSubscriptionListenerRegistry) {
  74                 final DOMNotificationSubscriptionListenerRegistry subsRegistry =
  75                         (DOMNotificationSubscriptionListenerRegistry) domPublishService;
  76                 return new HeliumNotificationProviderServiceWithInterestListeners(castedPublish, castedListen,
  77                         subsRegistry);
  78             }
  79         }
  80         return new HeliumNotificationProviderServiceAdapter(publishService, listenService);
  81     }
  82 }