cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/service/CmNotificationSubscriptionHandlerServiceImpl.java

   1 /*
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2024 Nordix Foundation
   4  *  ================================================================================
   5  *  Licensed under the Apache License, Version 2.0 (the "License");
   6  *  you may not use this file except in compliance with the License.
   7  *  You may obtain a copy of the License at
   8  *
   9  *        http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  *  Unless required by applicable law or agreed to in writing, software
  12  *  distributed under the License is distributed on an "AS IS" BASIS,
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  *  See the License for the specific language governing permissions and
  15  *  limitations under the License.
  16  *
  17  *  SPDX-License-Identifier: Apache-2.0
  18  *  ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.cps.ncmp.api.impl.events.cmsubscription.service;
  22
  23 import java.util.ArrayList;
  24 import java.util.List;
  25 import java.util.Map;
  26 import java.util.Set;
  27 import java.util.stream.Collectors;
  28 import lombok.RequiredArgsConstructor;
  29 import org.onap.cps.ncmp.api.impl.events.cmsubscription.CmNotificationSubscriptionDelta;
  30 import org.onap.cps.ncmp.api.impl.events.cmsubscription.CmNotificationSubscriptionEventsHandler;
  31 import org.onap.cps.ncmp.api.impl.events.cmsubscription.CmNotificationSubscriptionMappersHandler;
  32 import org.onap.cps.ncmp.api.impl.events.cmsubscription.DmiCmNotificationSubscriptionCacheHandler;
  33 import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionDetails;
  34 import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionPredicate;
  35 import org.onap.cps.ncmp.events.cmnotificationsubscription_merge1_0_0.client_to_ncmp.CmNotificationSubscriptionNcmpInEvent;
  36 import org.onap.cps.ncmp.events.cmnotificationsubscription_merge1_0_0.client_to_ncmp.Predicate;
  37 import org.onap.cps.ncmp.events.cmnotificationsubscription_merge1_0_0.ncmp_to_dmi.CmNotificationSubscriptionDmiInEvent;
  38 import org.onap.cps.ncmp.events.cmsubscription_merge1_0_0.ncmp_to_client.CmNotificationSubscriptionNcmpOutEvent;
  39 import org.springframework.stereotype.Service;
  40
  41 @Service
  42 @RequiredArgsConstructor
  43 public class CmNotificationSubscriptionHandlerServiceImpl implements CmNotificationSubscriptionHandlerService {
  44
  45     private final CmNotificationSubscriptionPersistenceService cmNotificationSubscriptionPersistenceService;
  46     private final CmNotificationSubscriptionDelta cmNotificationSubscriptionDelta;
  47     private final CmNotificationSubscriptionMappersHandler cmNotificationSubscriptionMappersHandler;
  48     private final CmNotificationSubscriptionEventsHandler cmNotificationSubscriptionEventsHandler;
  49     private final DmiCmNotificationSubscriptionCacheHandler dmiCmNotificationSubscriptionCacheHandler;
  50
  51     @Override
  52     public void processSubscriptionCreateRequest(
  53             final CmNotificationSubscriptionNcmpInEvent cmNotificationSubscriptionNcmpInEvent) {
  54         final String subscriptionId = cmNotificationSubscriptionNcmpInEvent.getData().getSubscriptionId();
  55         final List<Predicate> predicates = cmNotificationSubscriptionNcmpInEvent.getData().getPredicates();
  56
  57         if (cmNotificationSubscriptionPersistenceService.isUniqueSubscriptionId(subscriptionId)) {
  58             dmiCmNotificationSubscriptionCacheHandler.add(subscriptionId, predicates);
  59             sendSubscriptionCreateRequestToDmi(subscriptionId);
  60             scheduleCmNotificationSubscriptionNcmpOutEventResponse(subscriptionId);
  61         } else {
  62             rejectAndPublishCmNotificationSubscriptionCreateRequest(subscriptionId,
  63                     predicates);
  64         }
  65     }
  66
  67     private void scheduleCmNotificationSubscriptionNcmpOutEventResponse(final String subscriptionId) {
  68         cmNotificationSubscriptionEventsHandler.publishCmNotificationSubscriptionNcmpOutEvent(subscriptionId,
  69                 "subscriptionCreateResponse", null, true);
  70     }
  71
  72     private void rejectAndPublishCmNotificationSubscriptionCreateRequest(final String subscriptionId,
  73             final List<Predicate> predicates) {
  74         final Set<String> subscriptionTargetFilters =
  75                 predicates.stream().flatMap(predicate -> predicate.getTargetFilter().stream())
  76                         .collect(Collectors.toSet());
  77         final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent =
  78                 cmNotificationSubscriptionMappersHandler.toCmNotificationSubscriptionNcmpOutEventForRejectedRequest(
  79                         subscriptionId, new ArrayList<>(subscriptionTargetFilters));
  80         cmNotificationSubscriptionEventsHandler.publishCmNotificationSubscriptionNcmpOutEvent(subscriptionId,
  81                 "subscriptionCreateResponse", cmNotificationSubscriptionNcmpOutEvent, false);
  82     }
  83
  84     private void sendSubscriptionCreateRequestToDmi(final String subscriptionId) {
  85         final Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsMap =
  86                 dmiCmNotificationSubscriptionCacheHandler.get(subscriptionId);
  87         dmiCmNotificationSubscriptionDetailsMap.forEach((dmiPluginName, dmiCmNotificationSubscriptionDetails) -> {
  88             final List<DmiCmNotificationSubscriptionPredicate> dmiCmNotificationSubscriptionPredicates =
  89                     cmNotificationSubscriptionDelta.getDelta(
  90                             dmiCmNotificationSubscriptionDetails.getDmiCmNotificationSubscriptionPredicates());
  91             final CmNotificationSubscriptionDmiInEvent cmNotificationSubscriptionDmiInEvent =
  92                     cmNotificationSubscriptionMappersHandler.toCmNotificationSubscriptionDmiInEvent(
  93                             dmiCmNotificationSubscriptionPredicates);
  94             cmNotificationSubscriptionEventsHandler.publishCmNotificationSubscriptionDmiInEvent(subscriptionId,
  95                     dmiPluginName, "subscriptionCreateRequest", cmNotificationSubscriptionDmiInEvent);
  96         });
  97     }
  98 }