nbinotifications/src/main/java/org/opendaylight/transportpce/nbinotifications/impl/rpc/GetNotificationListImpl.java

   1 /*
   2  * Copyright © 2024 Orange, 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.transportpce.nbinotifications.impl.rpc;
   9
  10 import com.google.common.util.concurrent.ListenableFuture;
  11 import java.util.ArrayList;
  12 import java.util.HashMap;
  13 import java.util.List;
  14 import java.util.Map;
  15 import java.util.NoSuchElementException;
  16 import java.util.Optional;
  17 import java.util.concurrent.ExecutionException;
  18 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
  19 import org.opendaylight.transportpce.common.converter.JsonStringConverter;
  20 import org.opendaylight.transportpce.common.network.NetworkTransactionService;
  21 import org.opendaylight.transportpce.nbinotifications.consumer.Subscriber;
  22 import org.opendaylight.transportpce.nbinotifications.serialization.TapiNotificationDeserializer;
  23 import org.opendaylight.transportpce.nbinotifications.utils.TopicManager;
  24 import org.opendaylight.yang.gen.v1.nbi.notifications.rev230728.NotificationTapiService;
  25 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev221121.Context;
  26 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev221121.Uuid;
  27 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.Context1;
  28 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.GetNotificationList;
  29 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.GetNotificationListInput;
  30 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.GetNotificationListOutput;
  31 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.GetNotificationListOutputBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.context.NotificationContext;
  33 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.get.notification.list.output.Notification;
  34 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.get.notification.list.output.NotificationKey;
  35 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.notification.context.NotifSubscription;
  36 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.notification.context.NotifSubscriptionKey;
  37 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.notification.subscription.service.SubscriptionFilter;
  38 import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.notification.rev221121.notification.subscription.service.SubscriptionFilterKey;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.opendaylight.yangtools.yang.common.ErrorType;
  41 import org.opendaylight.yangtools.yang.common.RpcResult;
  42 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46
  47 public class GetNotificationListImpl implements GetNotificationList {
  48     private static final Logger LOG = LoggerFactory.getLogger(GetNotificationListImpl.class);
  49
  50     private final JsonStringConverter<NotificationTapiService> converterTapiService;
  51     private final String server;
  52     private final NetworkTransactionService networkTransactionService;
  53     private final TopicManager topicManager;
  54
  55     public GetNotificationListImpl(JsonStringConverter<NotificationTapiService> converterTapiService, String server,
  56             NetworkTransactionService networkTransactionService, TopicManager topicManager) {
  57         this.converterTapiService = converterTapiService;
  58         this.server = server;
  59         this.networkTransactionService = networkTransactionService;
  60         this.topicManager = topicManager;
  61     }
  62
  63
  64     @Override
  65     public ListenableFuture<RpcResult<GetNotificationListOutput>> invoke(GetNotificationListInput input) {
  66         try {
  67             LOG.info("RPC getNotificationList received");
  68             if (input == null || input.getSubscriptionId() == null) {
  69                 LOG.warn("Missing mandatory params for input {}", input);
  70                 return RpcResultBuilder.<GetNotificationListOutput>failed()
  71                     .withError(ErrorType.RPC, "Missing input parameters")
  72                     .buildFuture();
  73             }
  74             Uuid notifSubsUuid = input.getSubscriptionId();
  75             Optional<NotifSubscription> optionalNotifSub = this.networkTransactionService
  76                 .read(
  77                     LogicalDatastoreType.OPERATIONAL,
  78                     InstanceIdentifier.builder(Context.class).augmentation(Context1.class)
  79                         .child(NotificationContext.class)
  80                         .child(NotifSubscription.class, new NotifSubscriptionKey(notifSubsUuid))
  81                         .build())
  82                 .get();
  83             if (optionalNotifSub.isEmpty()) {
  84                 return RpcResultBuilder.<GetNotificationListOutput>failed()
  85                     .withError(ErrorType.APPLICATION, "Notification subscription doesnt exist")
  86                     .buildFuture();
  87             }
  88             NotifSubscription notifSubscription = optionalNotifSub.orElseThrow();
  89             List<Notification> notificationTapiList = new ArrayList<>();
  90             for (Map.Entry<SubscriptionFilterKey, SubscriptionFilter> sfEntry :
  91                     notifSubscription.getSubscriptionFilter().entrySet()) {
  92                 for (Uuid objectUuid:sfEntry.getValue().getRequestedObjectIdentifier()) {
  93                     if (!this.topicManager.getTapiTopicMap().containsKey(objectUuid.getValue())) {
  94                         LOG.warn("Topic doesnt exist for {}", objectUuid.getValue());
  95                         continue;
  96                     }
  97                     LOG.info("Going to get notifications for topic {}", objectUuid.getValue());
  98                     Subscriber<NotificationTapiService, Notification> subscriber = new Subscriber<>(
  99                         objectUuid.getValue(), objectUuid.getValue(), server, converterTapiService,
 100                         TapiNotificationDeserializer.class);
 101                     notificationTapiList.addAll(subscriber.subscribe(objectUuid.getValue(), Notification.QNAME));
 102                 }
 103             }
 104             LOG.info("TAPI notifications = {}", notificationTapiList);
 105             Map<NotificationKey, Notification> notificationMap = new HashMap<>();
 106             for (Notification notif:notificationTapiList) {
 107                 notificationMap.put(notif.key(), notif);
 108             }
 109             return RpcResultBuilder
 110                 .success(new GetNotificationListOutputBuilder().setNotification(notificationMap).build())
 111                 .buildFuture();
 112         } catch (InterruptedException | ExecutionException | NoSuchElementException e) {
 113             LOG.error("Failed to get Notifications from Kafka", e);
 114         }
 115         return RpcResultBuilder.<GetNotificationListOutput>failed()
 116             .withError(ErrorType.APPLICATION, "Notifications couldnt be retrieved from Kafka server")
 117             .buildFuture();
 118     }
 119
 120 }