servicehandler/src/main/java/org/opendaylight/transportpce/servicehandler/listeners/ServiceListener.java

   1 /*
   2  * Copyright © 2021 Orange 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.transportpce.servicehandler.listeners;
   9
  10 import java.util.Collection;
  11 import org.opendaylight.mdsal.binding.api.DataBroker;
  12 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  13 import org.opendaylight.mdsal.binding.api.DataTreeChangeListener;
  14 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  15 import org.opendaylight.mdsal.binding.api.NotificationPublishService;
  16 import org.opendaylight.yang.gen.v1.http.org.openroadm.common.state.types.rev181130.State;
  17 import org.opendaylight.yang.gen.v1.http.org.openroadm.service.rev190531.service.list.Services;
  18 import org.opendaylight.yang.gen.v1.nbi.notifications.rev210813.PublishNotificationAlarmService;
  19 import org.opendaylight.yang.gen.v1.nbi.notifications.rev210813.PublishNotificationAlarmServiceBuilder;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 public class ServiceListener implements DataTreeChangeListener<Services> {
  24
  25     private static final Logger LOG = LoggerFactory.getLogger(ServiceListener.class);
  26     private static final String PUBLISHER = "ServiceListener";
  27     private final DataBroker dataBroker;
  28     private NotificationPublishService notificationPublishService;
  29
  30     public ServiceListener(final DataBroker dataBroker, NotificationPublishService notificationPublishService) {
  31         this.dataBroker = dataBroker;
  32         this.notificationPublishService = notificationPublishService;
  33     }
  34
  35     public void onDataTreeChanged(Collection<DataTreeModification<Services>> changes) {
  36         LOG.info("onDataTreeChanged - {}", this.getClass().getSimpleName());
  37         for (DataTreeModification<Services> change : changes) {
  38             DataObjectModification<Services> rootService = change.getRootNode();
  39             if (rootService.getDataBefore() == null) {
  40                 continue;
  41             }
  42             String serviceName = rootService.getDataBefore().key().getServiceName();
  43             switch (rootService.getModificationType()) {
  44                 case DELETE:
  45                     LOG.info("Service {} correctly deleted from controller", serviceName);
  46                     break;
  47                 case WRITE:
  48                     Services input = rootService.getDataAfter();
  49                     if (rootService.getDataBefore().getOperationalState() == State.InService
  50                             && rootService.getDataAfter().getOperationalState() == State.OutOfService) {
  51                         LOG.info("Service {} is becoming outOfService", serviceName);
  52                         sendNbiNotification(new PublishNotificationAlarmServiceBuilder()
  53                                 .setServiceName(input.getServiceName())
  54                                 .setConnectionType(input.getConnectionType())
  55                                 .setMessage("The service is now outOfService")
  56                                 .setOperationalState(State.OutOfService)
  57                                 .setPublisherName(PUBLISHER)
  58                                 .build());
  59                     }
  60                     else if (rootService.getDataBefore().getOperationalState() == State.OutOfService
  61                             && rootService.getDataAfter().getOperationalState() == State.InService) {
  62                         LOG.info("Service {} is becoming InService", serviceName);
  63                         sendNbiNotification(new PublishNotificationAlarmServiceBuilder()
  64                                 .setServiceName(input.getServiceName())
  65                                 .setConnectionType(input.getConnectionType())
  66                                 .setMessage("The service is now inService")
  67                                 .setOperationalState(State.InService)
  68                                 .setPublisherName(PUBLISHER)
  69                                 .build());
  70                     }
  71                     break;
  72                 default:
  73                     LOG.debug("Unknown modification type {}", rootService.getModificationType().name());
  74                     break;
  75             }
  76         }
  77     }
  78
  79     /**
  80      * Send notification to NBI notification in order to publish message.
  81      *
  82      * @param service PublishNotificationAlarmService
  83      */
  84     private void sendNbiNotification(PublishNotificationAlarmService service) {
  85         try {
  86             notificationPublishService.putNotification(service);
  87         } catch (InterruptedException e) {
  88             LOG.warn("Cannot send notification to nbi", e);
  89             Thread.currentThread().interrupt();
  90         }
  91     }
  92 }