cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avcsubscription/SubscriptionEventForwarder.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.util.Collection;
  24 import java.util.Collections;
  25 import java.util.List;
  26 import java.util.Map;
  27 import java.util.Objects;
  28 import java.util.stream.Collectors;
  29 import lombok.RequiredArgsConstructor;
  30 import lombok.extern.slf4j.Slf4j;
  31 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
  32 import org.onap.cps.ncmp.api.impl.utils.DmiServiceNameOrganizer;
  33 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
  34 import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
  35 import org.onap.cps.ncmp.event.model.SubscriptionEvent;
  36 import org.onap.cps.spi.exceptions.OperationNotYetSupportedException;
  37 import org.springframework.stereotype.Component;
  38
  39
  40 @Component
  41 @Slf4j
  42 @RequiredArgsConstructor
  43 public class SubscriptionEventForwarder {
  44
  45     private final InventoryPersistence inventoryPersistence;
  46     private final EventsPublisher<SubscriptionEvent> eventsPublisher;
  47     private static final String DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX = "ncmp-dmi-cm-avc-subscription-";
  48
  49     /**
  50      * Forward subscription event.
  51      *
  52      * @param subscriptionEvent the event to be forwarded
  53      */
  54     public void forwardCreateSubscriptionEvent(final SubscriptionEvent subscriptionEvent) {
  55         final List<Object> cmHandleTargets = subscriptionEvent.getEvent().getPredicates().getTargets();
  56         if (cmHandleTargets == null || cmHandleTargets.isEmpty()
  57                 || cmHandleTargets.stream().anyMatch(id -> ((String) id).contains("*"))) {
  58             throw new OperationNotYetSupportedException(
  59                     "CMHandle targets are required. \"Wildcard\" operations are not yet supported");
  60         }
  61         final List<String> cmHandleTargetsAsStrings = cmHandleTargets.stream().map(
  62                 Objects::toString).collect(Collectors.toList());
  63         final Collection<YangModelCmHandle> yangModelCmHandles =
  64                 inventoryPersistence.getYangModelCmHandles(cmHandleTargetsAsStrings);
  65
  66         final Map<String, Map<String, Map<String, String>>> dmiPropertiesPerCmHandleIdPerServiceName
  67                 = DmiServiceNameOrganizer.getDmiPropertiesPerCmHandleIdPerServiceName(yangModelCmHandles);
  68         dmiPropertiesPerCmHandleIdPerServiceName.forEach((dmiServiceName, cmHandlePropertiesMap) -> {
  69             subscriptionEvent.getEvent().getPredicates().setTargets(Collections
  70                     .singletonList(cmHandlePropertiesMap));
  71             final String eventKey = createEventKey(subscriptionEvent, dmiServiceName);
  72             eventsPublisher.publishEvent(DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX + dmiServiceName, eventKey,
  73                     subscriptionEvent);
  74         });
  75     }
  76
  77     private String createEventKey(final SubscriptionEvent subscriptionEvent, final String dmiName) {
  78         return subscriptionEvent.getEvent().getSubscription().getClientID()
  79             + "-"
  80             + subscriptionEvent.getEvent().getSubscription().getName()
  81             + "-"
  82             + dmiName;
  83     }
  84
  85 }