opendaylight/md-sal/sal-restconf-broker/src/main/java/org/opendaylight/controller/sal/restconf/broker/impl/NotificationServiceImpl.java

   1 /*
   2  * Copyright (c) 2013 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.sal.restconf.broker.impl;
   9
  10 import com.google.common.collect.HashMultimap;
  11 import com.google.common.collect.Multimap;
  12 import com.google.common.collect.Multimaps;
  13 import com.google.common.collect.SetMultimap;
  14 import java.util.ArrayList;
  15 import java.util.List;
  16 import java.util.Map;
  17 import java.util.concurrent.ExecutorService;
  18 import org.opendaylight.controller.sal.binding.api.NotificationListener;
  19 import org.opendaylight.controller.sal.binding.api.NotificationService;
  20 import org.opendaylight.controller.sal.restconf.broker.listeners.RemoteNotificationListener;
  21 import org.opendaylight.controller.sal.restconf.broker.tools.RemoteStreamTools;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.QName;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.remote.rev140114.SalRemoteService;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.concepts.Registration;
  26 import org.opendaylight.yangtools.restconf.client.api.RestconfClientContext;
  27 import org.opendaylight.yangtools.restconf.client.api.event.EventStreamInfo;
  28 import org.opendaylight.yangtools.yang.binding.Notification;
  29
  30 public class NotificationServiceImpl implements NotificationService {
  31     private SalRemoteService salRemoteService;
  32     private RestconfClientContext restconfClientContext;
  33
  34     private final Multimap<Class<? extends Notification>,NotificationListener<? extends Object>> listeners;
  35     private ExecutorService _executor;
  36
  37     public NotificationServiceImpl(RestconfClientContext restconfClienetContext){
  38         this.restconfClientContext = restconfClienetContext;
  39         this.salRemoteService = this.restconfClientContext.getRpcServiceContext(SalRemoteService.class).getRpcService();
  40
  41         HashMultimap<Class<? extends Notification>,NotificationListener<? extends Object>> _create = HashMultimap.<Class<? extends Notification>, NotificationListener<? extends Object>>create();
  42         SetMultimap<Class<? extends Notification>,NotificationListener<? extends Object>> _synchronizedSetMultimap = Multimaps.<Class<? extends Notification>, NotificationListener<? extends Object>>synchronizedSetMultimap(_create);
  43         this.listeners = _synchronizedSetMultimap;
  44
  45     }
  46     public ExecutorService getExecutor() {
  47         return this._executor;
  48     }
  49
  50     public void setExecutor(final ExecutorService executor) {
  51         this._executor = executor;
  52     }
  53
  54     @Override
  55     public <T extends Notification> void addNotificationListener(Class<T> notificationType, NotificationListener<T> listener) {
  56         this.listeners.put(notificationType, listener);
  57     }
  58
  59     @Override
  60     public void addNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) {
  61         UnsupportedOperationException _unsupportedOperationException = new UnsupportedOperationException("Deprecated method. Use registerNotificationListener instead.");
  62         throw _unsupportedOperationException;
  63     }
  64
  65     @Override
  66     public void removeNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) {
  67         UnsupportedOperationException _unsupportedOperationException = new UnsupportedOperationException(
  68                 "Deprecated method. Use RegisterNotificationListener returned value to close registration.");
  69         throw _unsupportedOperationException;
  70     }
  71
  72     @Override
  73     public <T extends Notification> void removeNotificationListener(Class<T> notificationType, NotificationListener<T> listener) {
  74         this.listeners.remove(notificationType, listener);
  75     }
  76
  77     @Override
  78     public <T extends Notification> Registration<NotificationListener<T>> registerNotificationListener(Class<T> notificationType, NotificationListener<T> listener) {
  79         //TODO implementation using sal-remote
  80         List<QName> notifications = new ArrayList<QName>();
  81         notifications.add(new QName(notificationType.toString()));
  82         String notificationStreamName = RemoteStreamTools.createNotificationStream(salRemoteService, notifications);
  83         final Map<String,EventStreamInfo> desiredEventStream = RemoteStreamTools.createEventStream(restconfClientContext, notificationStreamName);
  84         RemoteNotificationListener remoteNotificationListener = new RemoteNotificationListener(listener);
  85         ListenerRegistration listenerRegistration = restconfClientContext.getEventStreamContext(desiredEventStream.get(desiredEventStream.get(notificationStreamName))).registerNotificationListener(remoteNotificationListener);
  86         SalNotificationRegistration salNotificationRegistration = new SalNotificationRegistration(listenerRegistration);
  87         return salNotificationRegistration;
  88     }
  89
  90     @Override
  91     public Registration<org.opendaylight.yangtools.yang.binding.NotificationListener> registerNotificationListener(org.opendaylight.yangtools.yang.binding.NotificationListener listener) {
  92         //TODO implementation using sal-remote
  93         String notificationStreamName = RemoteStreamTools.createNotificationStream(salRemoteService, null);
  94         final Map<String,EventStreamInfo> desiredEventStream = RemoteStreamTools.createEventStream(restconfClientContext, notificationStreamName);
  95         ListenerRegistration listenerRegistration = restconfClientContext.getEventStreamContext(desiredEventStream.get(desiredEventStream.get(notificationStreamName))).registerNotificationListener(listener);
  96         return listenerRegistration;
  97     }
  98
  99     private class SalNotificationRegistration<T extends Notification> implements Registration<NotificationListener<T>>{
 100         private Registration registration;
 101
 102         public SalNotificationRegistration(ListenerRegistration listenerRegistration){
 103             this.registration = listenerRegistration;
 104         }
 105
 106         @Override
 107         public NotificationListener<T> getInstance() {
 108             return this.getInstance();
 109         }
 110
 111         @Override
 112         public void close() throws Exception {
 113             this.registration.close();
 114         }
 115     }
 116
 117
 118 }