cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionDelta.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;
  22
  23 import java.util.ArrayList;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Set;
  27 import lombok.RequiredArgsConstructor;
  28 import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionPredicate;
  29 import org.onap.cps.ncmp.api.impl.events.cmsubscription.service.CmNotificationSubscriptionPersistenceService;
  30 import org.onap.cps.ncmp.api.impl.operations.DatastoreType;
  31 import org.springframework.stereotype.Component;
  32
  33 @Component
  34 @RequiredArgsConstructor
  35 public class CmNotificationSubscriptionDelta {
  36
  37     private final CmNotificationSubscriptionPersistenceService cmNotificationSubscriptionPersistenceService;
  38
  39     /**
  40      * Get the delta for a given predicates list.
  41      *
  42      * @param dmiCmNotificationSubscriptionPredicates list of DmiCmNotificationSubscriptionPredicates
  43      * @return delta list of DmiCmNotificationSubscriptionPredicates
  44      */
  45     public List<DmiCmNotificationSubscriptionPredicate> getDelta(
  46         final List<DmiCmNotificationSubscriptionPredicate> dmiCmNotificationSubscriptionPredicates) {
  47         final List<DmiCmNotificationSubscriptionPredicate> delta = new ArrayList<>();
  48
  49         for (final DmiCmNotificationSubscriptionPredicate cmNotificationSubscriptionPredicate:
  50             dmiCmNotificationSubscriptionPredicates) {
  51
  52             final Set<String> targetCmHandleIds = new HashSet<>();
  53             final Set<String> xpaths = new HashSet<>();
  54             final DatastoreType datastoreType = cmNotificationSubscriptionPredicate.getDatastoreType();
  55
  56             for (final String cmHandleId : cmNotificationSubscriptionPredicate.getTargetCmHandleIds()) {
  57                 for (final String xpath : cmNotificationSubscriptionPredicate.getXpaths()) {
  58                     if (!cmNotificationSubscriptionPersistenceService.isOngoingCmNotificationSubscription(datastoreType,
  59                             cmHandleId, xpath)) {
  60                         xpaths.add(xpath);
  61                         targetCmHandleIds.add(cmHandleId);
  62
  63                     }
  64                 }
  65             }
  66
  67             final DmiCmNotificationSubscriptionPredicate predicateDelta =
  68                 new DmiCmNotificationSubscriptionPredicate(targetCmHandleIds, datastoreType, xpaths);
  69
  70             delta.add(predicateDelta);
  71         }
  72         return delta;
  73     }
  74
  75 }