cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avcsubscription/SubscriptionEventResponseOutcome.java

   1 /*
   2  * ============LICENSE_START=======================================================
   3  *  Copyright (C) 2023 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.avcsubscription;
  22
  23 import java.io.Serializable;
  24 import java.util.Collection;
  25 import java.util.HashMap;
  26 import java.util.Iterator;
  27 import java.util.List;
  28 import java.util.Map;
  29 import lombok.RequiredArgsConstructor;
  30 import lombok.extern.slf4j.Slf4j;
  31 import org.apache.kafka.common.header.Headers;
  32 import org.apache.kafka.common.header.internals.RecordHeaders;
  33 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
  34 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
  35 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus;
  36 import org.onap.cps.ncmp.api.impl.utils.DataNodeHelper;
  37 import org.onap.cps.ncmp.api.models.SubscriptionEventResponse;
  38 import org.onap.cps.ncmp.events.avc.subscription.v1.SubscriptionEventOutcome;
  39 import org.onap.cps.spi.model.DataNode;
  40 import org.springframework.beans.factory.annotation.Value;
  41 import org.springframework.stereotype.Component;
  42
  43 @Component
  44 @Slf4j
  45 @RequiredArgsConstructor
  46 public class SubscriptionEventResponseOutcome {
  47
  48     private final SubscriptionPersistence subscriptionPersistence;
  49
  50     private final EventsPublisher<SubscriptionEventOutcome> outcomeEventsPublisher;
  51
  52     private final SubscriptionOutcomeMapper subscriptionOutcomeMapper;
  53
  54     @Value("${app.ncmp.avc.subscription-outcome-topic:cm-avc-subscription-response}")
  55     private String subscriptionOutcomeEventTopic;
  56
  57     /**
  58      * This is for construction of outcome message to be published for client apps.
  59      *
  60      * @param subscriptionClientId client id of the subscription.
  61      * @param subscriptionName name of the subscription.
  62      * @param isFullOutcomeResponse the flag to decide on complete or partial response to be generated.
  63      */
  64     public void sendResponse(final String subscriptionClientId, final String subscriptionName,
  65                              final boolean isFullOutcomeResponse) {
  66         final SubscriptionEventOutcome subscriptionEventOutcome = generateResponse(
  67                 subscriptionClientId, subscriptionName, isFullOutcomeResponse);
  68         final Headers headers = new RecordHeaders();
  69         final String subscriptionEventId = subscriptionClientId + subscriptionName;
  70         outcomeEventsPublisher.publishEvent(subscriptionOutcomeEventTopic,
  71                 subscriptionEventId, headers, subscriptionEventOutcome);
  72     }
  73
  74     private SubscriptionEventOutcome generateResponse(final String subscriptionClientId, final String subscriptionName,
  75                                                                  final boolean isFullOutcomeResponse) {
  76         final Collection<DataNode> dataNodes = subscriptionPersistence.getDataNodesForSubscriptionEvent();
  77         final List<Map<String, Serializable>> dataNodeLeaves = DataNodeHelper.getDataNodeLeaves(dataNodes);
  78         final List<Collection<Serializable>> cmHandleIdToStatus =
  79                 DataNodeHelper.getCmHandleIdToStatus(dataNodeLeaves);
  80         return formSubscriptionOutcomeMessage(cmHandleIdToStatus, subscriptionClientId, subscriptionName,
  81                         isFullOutcomeResponse);
  82     }
  83
  84
  85     private SubscriptionEventOutcome formSubscriptionOutcomeMessage(
  86             final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
  87             final String subscriptionName, final boolean isFullOutcomeResponse) {
  88
  89         final SubscriptionEventResponse subscriptionEventResponse = toSubscriptionEventResponse(
  90                 cmHandleIdToStatus, subscriptionClientId, subscriptionName);
  91
  92         final SubscriptionEventOutcome subscriptionEventOutcome =
  93                 subscriptionOutcomeMapper.toSubscriptionEventOutcome(subscriptionEventResponse);
  94
  95         if (isFullOutcomeResponse) {
  96             subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.COMPLETE_OUTCOME);
  97         } else {
  98             subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.PARTIAL_OUTCOME);
  99         }
 100
 101         return subscriptionEventOutcome;
 102     }
 103
 104     private SubscriptionEventResponse toSubscriptionEventResponse(
 105             final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
 106             final String subscriptionName) {
 107         final Map<String, SubscriptionStatus> cmHandleIdToStatusMap = new HashMap<>();
 108         final SubscriptionEventResponse subscriptionEventResponse = new SubscriptionEventResponse();
 109         subscriptionEventResponse.setClientId(subscriptionClientId);
 110         subscriptionEventResponse.setSubscriptionName(subscriptionName);
 111
 112         for (final Collection<Serializable> cmHandleToStatusBucket: cmHandleIdToStatus) {
 113             final Iterator<Serializable> bucketIterator = cmHandleToStatusBucket.iterator();
 114             while (bucketIterator.hasNext()) {
 115                 final String item = (String) bucketIterator.next();
 116                 if ("PENDING".equals(item)) {
 117                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 118                             SubscriptionStatus.PENDING);
 119                 }
 120                 if ("REJECTED".equals(item)) {
 121                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 122                             SubscriptionStatus.REJECTED);
 123                 }
 124                 if ("ACCEPTED".equals(item)) {
 125                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 126                             SubscriptionStatus.ACCEPTED);
 127                 }
 128             }
 129         }
 130         subscriptionEventResponse.setCmHandleIdToStatus(cmHandleIdToStatusMap);
 131
 132         return subscriptionEventResponse;
 133     }
 134 }