opendaylight/md-sal/sal-dom-compat/src/main/java/org/opendaylight/controller/sal/core/compat/LegacyDOMNotificationServiceAdapter.java

   1 /*
   2  * Copyright (c) 2018 Pantheon Technologies, s.r.o. 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.sal.core.compat;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.ForwardingObject;
  13 import java.time.Instant;
  14 import java.util.Arrays;
  15 import java.util.Collection;
  16 import java.util.Date;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMEvent;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMNotification;
  19 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationListener;
  20 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  21 import org.opendaylight.yangtools.concepts.AbstractListenerRegistration;
  22 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  23 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  24 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  25
  26 @Deprecated(forRemoval = true)
  27 public class LegacyDOMNotificationServiceAdapter extends ForwardingObject implements DOMNotificationService {
  28     private final org.opendaylight.mdsal.dom.api.DOMNotificationService delegate;
  29
  30     public LegacyDOMNotificationServiceAdapter(final org.opendaylight.mdsal.dom.api.DOMNotificationService delegate) {
  31         this.delegate = requireNonNull(delegate);
  32     }
  33
  34     @Override
  35     public <T extends DOMNotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener,
  36             final Collection<SchemaPath> types) {
  37         final ListenerRegistration<org.opendaylight.mdsal.dom.api.DOMNotificationListener> reg =
  38                 delegate().registerNotificationListener(notification -> {
  39                     if (notification instanceof DOMNotification) {
  40                         listener.onNotification((DOMNotification)notification);
  41                         return;
  42                     }
  43
  44                     if (notification instanceof org.opendaylight.mdsal.dom.api.DOMEvent) {
  45                         listener.onNotification(new DefaultDOMEvent(notification,
  46                             (org.opendaylight.mdsal.dom.api.DOMEvent)notification));
  47                         return;
  48                     }
  49
  50                     listener.onNotification(new DefaultDOMNotification(notification));
  51                 }, types);
  52
  53         return new AbstractListenerRegistration<T>(listener) {
  54             @Override
  55             protected void removeRegistration() {
  56                 reg.close();
  57             }
  58         };
  59     }
  60
  61     @Override
  62     public <T extends DOMNotificationListener> ListenerRegistration<T> registerNotificationListener(final T listener,
  63             final SchemaPath... types) {
  64         return registerNotificationListener(listener, Arrays.asList(types));
  65     }
  66
  67     @Override
  68     protected org.opendaylight.mdsal.dom.api.DOMNotificationService delegate() {
  69         return delegate;
  70     }
  71
  72     private static class DefaultDOMNotification implements DOMNotification {
  73         private final org.opendaylight.mdsal.dom.api.DOMNotification delegate;
  74
  75         DefaultDOMNotification(final org.opendaylight.mdsal.dom.api.DOMNotification delegate) {
  76             this.delegate = requireNonNull(delegate);
  77         }
  78
  79         @Override
  80         public SchemaPath getType() {
  81             return delegate.getType();
  82         }
  83
  84         @Override
  85         public ContainerNode getBody() {
  86             return delegate.getBody();
  87         }
  88     }
  89
  90     private static class DefaultDOMEvent extends DefaultDOMNotification implements DOMEvent {
  91         private final Date eventTime;
  92
  93         DefaultDOMEvent(final org.opendaylight.mdsal.dom.api.DOMNotification fromNotification,
  94                 final org.opendaylight.mdsal.dom.api.DOMEvent fromEvent) {
  95             super(fromNotification);
  96             final Instant eventInstant = fromEvent.getEventInstant();
  97             this.eventTime = eventInstant != null ? Date.from(eventInstant) : null;
  98         }
  99
 100         @Override
 101         public Date getEventTime() {
 102             return eventTime;
 103         }
 104     }
 105 }