cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/service/CmNotificationSubscriptionPersistenceServiceImpl.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.Collection;
  24 import java.util.Collections;
  25 import java.util.List;
  26 import lombok.RequiredArgsConstructor;
  27 import lombok.extern.slf4j.Slf4j;
  28 import org.onap.cps.api.CpsQueryService;
  29 import org.onap.cps.ncmp.api.impl.operations.DatastoreType;
  30 import org.onap.cps.spi.FetchDescendantsOption;
  31 import org.onap.cps.spi.model.DataNode;
  32 import org.springframework.stereotype.Service;
  33
  34 @Slf4j
  35 @Service
  36 @RequiredArgsConstructor
  37 public class CmNotificationSubscriptionPersistenceServiceImpl implements CmNotificationSubscriptionPersistenceService {
  38
  39     private static final String SUBSCRIPTION_ANCHOR_NAME = "cm-data-subscriptions";
  40     private static final String IS_ONGOING_CM_SUBSCRIPTION_CPS_PATH_QUERY = """
  41             /datastores/datastore[@name='%s']/cm-handles/cm-handle[@id='%s']/filters/filter[@xpath='%s']
  42             """.trim();
  43     private static final String SUBSCRIPTION_IDS_CPS_PATH_QUERY = """
  44             //filter/subscriptionIds[text()='%s']
  45             """.trim();
  46
  47     private final CpsQueryService cpsQueryService;
  48
  49     @Override
  50     public boolean isOngoingCmNotificationSubscription(final DatastoreType datastoreType, final String cmHandleId,
  51             final String xpath) {
  52         return !getOngoingCmNotificationSubscriptionIds(datastoreType, cmHandleId, xpath).isEmpty();
  53     }
  54
  55     @Override
  56     public boolean isUniqueSubscriptionId(final String subscriptionId) {
  57         return cpsQueryService.queryDataNodes(NCMP_DATASPACE_NAME, SUBSCRIPTION_ANCHOR_NAME,
  58                 SUBSCRIPTION_IDS_CPS_PATH_QUERY.formatted(subscriptionId),
  59                 FetchDescendantsOption.OMIT_DESCENDANTS).isEmpty();
  60     }
  61
  62     @Override
  63     public Collection<String> getOngoingCmNotificationSubscriptionIds(final DatastoreType datastoreType,
  64             final String cmHandleId, final String xpath) {
  65
  66         final String isOngoingCmSubscriptionCpsPathQuery =
  67                 IS_ONGOING_CM_SUBSCRIPTION_CPS_PATH_QUERY.formatted(datastoreType.getDatastoreName(), cmHandleId,
  68                         escapeQuotesByDoublingThem(xpath));
  69         final Collection<DataNode> existingNodes =
  70                 cpsQueryService.queryDataNodes(NCMP_DATASPACE_NAME, CM_SUBSCRIPTIONS_ANCHOR_NAME,
  71                         isOngoingCmSubscriptionCpsPathQuery, FetchDescendantsOption.OMIT_DESCENDANTS);
  72         if (existingNodes.isEmpty()) {
  73             return Collections.emptyList();
  74         }
  75         return (List<String>) existingNodes.iterator().next().getLeaves().get("subscriptionIds");
  76     }
  77
  78     private static String escapeQuotesByDoublingThem(final String inputXpath) {
  79         return inputXpath.replace("'", "''");
  80     }
  81 }