cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/subscriptions/SubscriptionPersistenceImpl.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.subscriptions;
  22
  23 import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NO_TIMESTAMP;
  24
  25 import java.util.Collection;
  26 import java.util.Optional;
  27 import lombok.RequiredArgsConstructor;
  28 import lombok.extern.slf4j.Slf4j;
  29 import org.onap.cps.api.CpsDataService;
  30 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelSubscriptionEvent;
  31 import org.onap.cps.spi.FetchDescendantsOption;
  32 import org.onap.cps.spi.model.DataNode;
  33 import org.onap.cps.utils.JsonObjectMapper;
  34 import org.springframework.stereotype.Component;
  35
  36 @Slf4j
  37 @RequiredArgsConstructor
  38 @Component
  39 public class SubscriptionPersistenceImpl implements SubscriptionPersistence {
  40
  41     private static final String SUBSCRIPTION_DATASPACE_NAME = "NCMP-Admin";
  42     private static final String SUBSCRIPTION_ANCHOR_NAME = "AVC-Subscriptions";
  43     private static final String SUBSCRIPTION_REGISTRY_PARENT = "/subscription-registry";
  44
  45     private final JsonObjectMapper jsonObjectMapper;
  46     private final CpsDataService cpsDataService;
  47
  48     @Override
  49     public void saveSubscriptionEvent(final YangModelSubscriptionEvent yangModelSubscriptionEvent) {
  50         final String subscriptionEventJsonData =
  51                 createSubscriptionEventJsonData(jsonObjectMapper.asJsonString(yangModelSubscriptionEvent));
  52         final Collection<DataNode> dataNodes = cpsDataService.getDataNodes(SUBSCRIPTION_DATASPACE_NAME,
  53                 SUBSCRIPTION_ANCHOR_NAME, SUBSCRIPTION_REGISTRY_PARENT, FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS);
  54         final Optional<DataNode> dataNodeFirst = dataNodes.stream().findFirst();
  55         final boolean isCreateOperation =
  56                 dataNodeFirst.isPresent() && dataNodeFirst.get().getChildDataNodes().isEmpty();
  57         saveOrUpdateSubscriptionEventYangModel(subscriptionEventJsonData, isCreateOperation);
  58     }
  59
  60     private void saveOrUpdateSubscriptionEventYangModel(final String subscriptionEventJsonData,
  61                                                         final boolean isCreateOperation) {
  62         if (isCreateOperation) {
  63             log.info("SubscriptionEventJsonData to be saved into DB {}", subscriptionEventJsonData);
  64             cpsDataService.saveListElements(SUBSCRIPTION_DATASPACE_NAME, SUBSCRIPTION_ANCHOR_NAME,
  65                     SUBSCRIPTION_REGISTRY_PARENT, subscriptionEventJsonData, NO_TIMESTAMP);
  66         } else {
  67             log.info("SubscriptionEventJsonData to be updated into DB {}", subscriptionEventJsonData);
  68             cpsDataService.updateDataNodeAndDescendants(SUBSCRIPTION_DATASPACE_NAME, SUBSCRIPTION_ANCHOR_NAME,
  69                     SUBSCRIPTION_REGISTRY_PARENT, subscriptionEventJsonData, NO_TIMESTAMP);
  70         }
  71     }
  72
  73     @Override
  74     public Collection<DataNode> getDataNodesForSubscriptionEvent() {
  75         return cpsDataService.getDataNodes(SUBSCRIPTION_DATASPACE_NAME,
  76                 SUBSCRIPTION_ANCHOR_NAME, SUBSCRIPTION_REGISTRY_PARENT,
  77                 FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS);
  78     }
  79
  80     private static String createSubscriptionEventJsonData(final String yangModelSubscriptionAsJson) {
  81         return "{\"subscription\":[" + yangModelSubscriptionAsJson + "]}";
  82     }
  83 }