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.event.avc.SubscriptionOutcomeMapper;
  34 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
  35 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
  36 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus;
  37 import org.onap.cps.ncmp.api.impl.utils.DataNodeHelper;
  38 import org.onap.cps.ncmp.api.models.SubscriptionEventResponse;
  39 import org.onap.cps.ncmp.events.avc.subscription.v1.SubscriptionEventOutcome;
  40 import org.onap.cps.spi.model.DataNode;
  41 import org.springframework.beans.factory.annotation.Value;
  42 import org.springframework.stereotype.Component;
  43
  44 @Component
  45 @Slf4j
  46 @RequiredArgsConstructor
  47 public class SubscriptionEventResponseOutcome {
  48
  49     private final SubscriptionPersistence subscriptionPersistence;
  50
  51     private final EventsPublisher<SubscriptionEventOutcome> outcomeEventsPublisher;
  52
  53     private final SubscriptionOutcomeMapper subscriptionOutcomeMapper;
  54
  55     @Value("${app.ncmp.avc.subscription-outcome-topic:cm-avc-subscription-response}")
  56     private String subscriptionOutcomeEventTopic;
  57
  58     /**
  59      * This is for construction of outcome message to be published for client apps.
  60      *
  61      * @param subscriptionClientId client id of the subscription.
  62      * @param subscriptionName name of the subscription.
  63      * @param isFullOutcomeResponse the flag to decide on complete or partial response to be generated.
  64      */
  65     public void sendResponse(final String subscriptionClientId, final String subscriptionName,
  66                              final boolean isFullOutcomeResponse) {
  67         final SubscriptionEventOutcome subscriptionEventOutcome = generateResponse(
  68                 subscriptionClientId, subscriptionName, isFullOutcomeResponse);
  69         final Headers headers = new RecordHeaders();
  70         final String subscriptionEventId = subscriptionClientId + subscriptionName;
  71         outcomeEventsPublisher.publishEvent(subscriptionOutcomeEventTopic,
  72                 subscriptionEventId, headers, subscriptionEventOutcome);
  73     }
  74
  75     private SubscriptionEventOutcome generateResponse(final String subscriptionClientId, final String subscriptionName,
  76                                                                  final boolean isFullOutcomeResponse) {
  77         final Collection<DataNode> dataNodes = subscriptionPersistence.getDataNodesForSubscriptionEvent();
  78         final List<Map<String, Serializable>> dataNodeLeaves = DataNodeHelper.getDataNodeLeaves(dataNodes);
  79         final List<Collection<Serializable>> cmHandleIdToStatus =
  80                 DataNodeHelper.getCmHandleIdToStatus(dataNodeLeaves);
  81         return formSubscriptionOutcomeMessage(cmHandleIdToStatus, subscriptionClientId, subscriptionName,
  82                         isFullOutcomeResponse);
  83     }
  84
  85
  86     private SubscriptionEventOutcome formSubscriptionOutcomeMessage(
  87             final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
  88             final String subscriptionName, final boolean isFullOutcomeResponse) {
  89
  90         final SubscriptionEventResponse subscriptionEventResponse = toSubscriptionEventResponse(
  91                 cmHandleIdToStatus, subscriptionClientId, subscriptionName);
  92
  93         final SubscriptionEventOutcome subscriptionEventOutcome =
  94                 subscriptionOutcomeMapper.toSubscriptionEventOutcome(subscriptionEventResponse);
  95
  96         if (isFullOutcomeResponse) {
  97             subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.COMPLETE_OUTCOME);
  98         } else {
  99             subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.PARTIAL_OUTCOME);
 100         }
 101
 102         return subscriptionEventOutcome;
 103     }
 104
 105     private SubscriptionEventResponse toSubscriptionEventResponse(
 106             final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
 107             final String subscriptionName) {
 108         final Map<String, SubscriptionStatus> cmHandleIdToStatusMap = new HashMap<>();
 109         final SubscriptionEventResponse subscriptionEventResponse = new SubscriptionEventResponse();
 110         subscriptionEventResponse.setClientId(subscriptionClientId);
 111         subscriptionEventResponse.setSubscriptionName(subscriptionName);
 112
 113         for (final Collection<Serializable> cmHandleToStatusBucket: cmHandleIdToStatus) {
 114             final Iterator<Serializable> bucketIterator = cmHandleToStatusBucket.iterator();
 115             while (bucketIterator.hasNext()) {
 116                 final String item = (String) bucketIterator.next();
 117                 if ("PENDING".equals(item)) {
 118                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 119                             SubscriptionStatus.PENDING);
 120                 }
 121                 if ("REJECTED".equals(item)) {
 122                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 123                             SubscriptionStatus.REJECTED);
 124                 }
 125                 if ("ACCEPTED".equals(item)) {
 126                     cmHandleIdToStatusMap.put((String) bucketIterator.next(),
 127                             SubscriptionStatus.ACCEPTED);
 128                 }
 129             }
 130         }
 131         subscriptionEventResponse.setCmHandleIdToStatus(cmHandleIdToStatusMap);
 132
 133         return subscriptionEventResponse;
 134     }
 135 }