cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/event/avc/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.event.avc;
  22
  23 import java.util.Collection;
  24 import java.util.Collections;
  25 import java.util.HashMap;
  26 import java.util.List;
  27 import java.util.Map;
  28 import java.util.Objects;
  29 import java.util.stream.Collectors;
  30 import lombok.RequiredArgsConstructor;
  31 import lombok.extern.slf4j.Slf4j;
  32 import org.onap.cps.ncmp.api.impl.event.EventsPublisher;
  33 import org.onap.cps.ncmp.api.impl.operations.RequiredDmiService;
  34 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
  35 import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
  36 import org.onap.cps.ncmp.event.model.SubscriptionEvent;
  37 import org.onap.cps.spi.exceptions.OperationNotYetSupportedException;
  38 import org.springframework.stereotype.Component;
  39
  40
  41 @Component
  42 @Slf4j
  43 @RequiredArgsConstructor
  44 public class SubscriptionEventForwarder {
  45
  46     private final InventoryPersistence inventoryPersistence;
  47     private final EventsPublisher<SubscriptionEvent> eventsPublisher;
  48
  49     private static final String DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX = "ncmp-dmi-cm-avc-subscription-";
  50
  51     /**
  52      * Forward subscription event.
  53      *
  54      * @param subscriptionEvent the event to be forwarded
  55      */
  56     public void forwardCreateSubscriptionEvent(final SubscriptionEvent subscriptionEvent) {
  57         final List<Object> cmHandleTargets = subscriptionEvent.getEvent().getPredicates().getTargets();
  58         if (cmHandleTargets == null || cmHandleTargets.isEmpty()
  59             || cmHandleTargets.stream().anyMatch(id -> ((String) id).contains("*"))) {
  60             throw new OperationNotYetSupportedException(
  61                 "CMHandle targets are required. \"Wildcard\" operations are not yet supported");
  62         }
  63         final List<String> cmHandleTargetsAsStrings = cmHandleTargets.stream().map(
  64             Objects::toString).collect(Collectors.toList());
  65         final Collection<YangModelCmHandle> yangModelCmHandles =
  66             inventoryPersistence.getYangModelCmHandles(cmHandleTargetsAsStrings);
  67         final Map<String, Map<String, Map<String, String>>> dmiNameCmHandleMap =
  68             organizeByDmiName(yangModelCmHandles);
  69         dmiNameCmHandleMap.forEach((dmiName, cmHandlePropertiesMap) -> {
  70             subscriptionEvent.getEvent().getPredicates().setTargets(Collections.singletonList(cmHandlePropertiesMap));
  71             final String eventKey = createEventKey(subscriptionEvent, dmiName);
  72             eventsPublisher.publishEvent(DMI_AVC_SUBSCRIPTION_TOPIC_PREFIX + dmiName, eventKey, subscriptionEvent);
  73         });
  74     }
  75
  76     private Map<String, Map<String, Map<String, String>>> organizeByDmiName(
  77         final Collection<YangModelCmHandle> yangModelCmHandles) {
  78         final Map<String, Map<String, Map<String, String>>> dmiNameCmHandlePropertiesMap = new HashMap<>();
  79         yangModelCmHandles.forEach(cmHandle -> {
  80             final String dmiName = cmHandle.resolveDmiServiceName(RequiredDmiService.DATA);
  81             if (!dmiNameCmHandlePropertiesMap.containsKey(dmiName)) {
  82                 final Map<String, Map<String, String>> cmHandleDmiPropertiesMap = new HashMap<>();
  83                 cmHandleDmiPropertiesMap.put(cmHandle.getId(), dmiPropertiesAsMap(cmHandle));
  84                 dmiNameCmHandlePropertiesMap.put(cmHandle.getDmiDataServiceName(), cmHandleDmiPropertiesMap);
  85             } else {
  86                 dmiNameCmHandlePropertiesMap.get(cmHandle.getDmiDataServiceName())
  87                     .put(cmHandle.getId(), dmiPropertiesAsMap(cmHandle));
  88             }
  89         });
  90         return dmiNameCmHandlePropertiesMap;
  91     }
  92
  93     private String createEventKey(final SubscriptionEvent subscriptionEvent, final String dmiName) {
  94         return subscriptionEvent.getEvent().getSubscription().getClientID()
  95             + "-"
  96             + subscriptionEvent.getEvent().getSubscription().getName()
  97             + "-"
  98             + dmiName;
  99     }
 100
 101     public Map<String, String> dmiPropertiesAsMap(final YangModelCmHandle yangModelCmHandle) {
 102         return yangModelCmHandle.getDmiProperties().stream().collect(
 103             Collectors.toMap(YangModelCmHandle.Property::getName, YangModelCmHandle.Property::getValue));
 104     }
 105
 106 }