opendaylight/md-sal/sal-netconf-connector/src/main/java/org/opendaylight/controller/sal/connect/netconf/sal/NetconfDeviceNotificationService.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.controller.sal.connect.netconf.sal;
  10
  11 import static org.opendaylight.controller.sal.connect.netconf.util.NetconfMessageTransformUtil.toPath;
  12
  13 import com.google.common.collect.HashMultimap;
  14 import com.google.common.collect.Lists;
  15 import com.google.common.collect.Multimap;
  16 import java.util.Collection;
  17 import javax.annotation.Nonnull;
  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.ListenerRegistration;
  22 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  23 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  24
  25 class NetconfDeviceNotificationService implements DOMNotificationService {
  26
  27     private final Multimap<SchemaPath, DOMNotificationListener> listeners = HashMultimap.create();
  28
  29     // Notification publish is very simple and hijacks the thread of the caller
  30     // TODO shouldnt we reuse the implementation for notification router from sal-broker-impl ?
  31     public synchronized void publishNotification(final ContainerNode notification) {
  32         final SchemaPath schemaPath = toPath(notification.getNodeType());
  33         for (final DOMNotificationListener domNotificationListener : listeners.get(schemaPath)) {
  34             domNotificationListener.onNotification(new DOMNotification() {
  35                 @Nonnull
  36                 @Override
  37                 public SchemaPath getType() {
  38                     return schemaPath;
  39                 }
  40
  41                 @Nonnull
  42                 @Override
  43                 public ContainerNode getBody() {
  44                     return notification;
  45                 }
  46             });
  47         }
  48     }
  49
  50     @Override
  51     public synchronized <T extends DOMNotificationListener> ListenerRegistration<T> registerNotificationListener(@Nonnull final T listener, @Nonnull final Collection<SchemaPath> types) {
  52         for (final SchemaPath type : types) {
  53             listeners.put(type, listener);
  54         }
  55
  56         // FIXME this should invoke create-subscription rpc on the remote device for a given notification
  57
  58         return new ListenerRegistration<T>() {
  59             @Override
  60             public void close() {
  61                 for (final SchemaPath type : types) {
  62                     listeners.remove(type, listener);
  63                 }
  64             }
  65
  66             @Override
  67             public T getInstance() {
  68                 return listener;
  69             }
  70         };
  71     }
  72
  73     @Override
  74     public synchronized <T extends DOMNotificationListener> ListenerRegistration<T> registerNotificationListener(@Nonnull final T listener, final SchemaPath... types) {
  75         return registerNotificationListener(listener, Lists.newArrayList(types));
  76     }
  77 }