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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.cps.ncmp.impl.cmnotificationsubscription.ncmp;
23 import java.util.ArrayList;
24 import java.util.List;
27 import java.util.stream.Collectors;
28 import lombok.RequiredArgsConstructor;
29 import org.onap.cps.ncmp.impl.cmnotificationsubscription.cache.DmiCacheHandler;
30 import org.onap.cps.ncmp.impl.cmnotificationsubscription.dmi.DmiInEventMapper;
31 import org.onap.cps.ncmp.impl.cmnotificationsubscription.dmi.DmiInEventProducer;
32 import org.onap.cps.ncmp.impl.cmnotificationsubscription.models.CmSubscriptionStatus;
33 import org.onap.cps.ncmp.impl.cmnotificationsubscription.models.DmiCmSubscriptionDetails;
34 import org.onap.cps.ncmp.impl.cmnotificationsubscription.models.DmiCmSubscriptionPredicate;
35 import org.onap.cps.ncmp.impl.cmnotificationsubscription.utils.CmSubscriptionPersistenceService;
36 import org.onap.cps.ncmp.impl.cmnotificationsubscription_1_0_0.client_to_ncmp.Predicate;
37 import org.onap.cps.ncmp.impl.cmnotificationsubscription_1_0_0.ncmp_to_client.NcmpOutEvent;
38 import org.onap.cps.ncmp.impl.cmnotificationsubscription_1_0_0.ncmp_to_dmi.DmiInEvent;
39 import org.springframework.stereotype.Service;
42 @RequiredArgsConstructor
43 public class CmSubscriptionHandlerImpl implements CmSubscriptionHandler {
45 private final CmSubscriptionPersistenceService cmSubscriptionPersistenceService;
46 private final CmSubscriptionComparator cmSubscriptionComparator;
47 private final NcmpOutEventMapper ncmpOutEventMapper;
48 private final DmiInEventMapper dmiInEventMapper;
49 private final NcmpOutEventProducer ncmpOutEventProducer;
50 private final DmiInEventProducer dmiInEventProducer;
51 private final DmiCacheHandler dmiCacheHandler;
54 public void processSubscriptionCreateRequest(final String subscriptionId, final List<Predicate> predicates) {
55 if (cmSubscriptionPersistenceService.isUniqueSubscriptionId(subscriptionId)) {
56 dmiCacheHandler.add(subscriptionId, predicates);
57 handleNewCmSubscription(subscriptionId);
58 scheduleNcmpOutEventResponse(subscriptionId, "subscriptionCreateResponse");
60 rejectAndPublishCreateRequest(subscriptionId, predicates);
65 public void processSubscriptionDeleteRequest(final String subscriptionId, final List<Predicate> predicates) {
66 dmiCacheHandler.add(subscriptionId, predicates);
67 sendSubscriptionDeleteRequestToDmi(subscriptionId);
68 scheduleNcmpOutEventResponse(subscriptionId, "subscriptionDeleteResponse");
71 private void scheduleNcmpOutEventResponse(final String subscriptionId, final String eventType) {
72 ncmpOutEventProducer.publishNcmpOutEvent(subscriptionId, eventType, null, true);
75 private void rejectAndPublishCreateRequest(final String subscriptionId, final List<Predicate> predicates) {
76 final Set<String> subscriptionTargetFilters =
77 predicates.stream().flatMap(predicate -> predicate.getTargetFilter().stream())
78 .collect(Collectors.toSet());
79 final NcmpOutEvent ncmpOutEvent = ncmpOutEventMapper.toNcmpOutEventForRejectedRequest(subscriptionId,
80 new ArrayList<>(subscriptionTargetFilters));
81 ncmpOutEventProducer.publishNcmpOutEvent(subscriptionId, "subscriptionCreateResponse", ncmpOutEvent, false);
84 private void handleNewCmSubscription(final String subscriptionId) {
85 final Map<String, DmiCmSubscriptionDetails> dmiSubscriptionsPerDmi =
86 dmiCacheHandler.get(subscriptionId);
87 dmiSubscriptionsPerDmi.forEach((dmiPluginName, dmiSubscriptionDetails) -> {
88 final List<DmiCmSubscriptionPredicate> dmiCmSubscriptionPredicates =
89 cmSubscriptionComparator.getNewDmiSubscriptionPredicates(
90 dmiSubscriptionDetails.getDmiCmSubscriptionPredicates());
92 if (dmiCmSubscriptionPredicates.isEmpty()) {
93 acceptAndPublishNcmpOutEventPerDmi(subscriptionId, dmiPluginName);
95 publishDmiInEventPerDmi(subscriptionId, dmiPluginName, dmiCmSubscriptionPredicates);
100 private void publishDmiInEventPerDmi(final String subscriptionId, final String dmiPluginName,
101 final List<DmiCmSubscriptionPredicate> dmiCmSubscriptionPredicates) {
102 final DmiInEvent dmiInEvent = dmiInEventMapper.toDmiInEvent(dmiCmSubscriptionPredicates);
103 dmiInEventProducer.publishDmiInEvent(subscriptionId, dmiPluginName,
104 "subscriptionCreateRequest", dmiInEvent);
107 private void acceptAndPublishNcmpOutEventPerDmi(final String subscriptionId, final String dmiPluginName) {
108 dmiCacheHandler.updateDmiSubscriptionStatusPerDmi(subscriptionId, dmiPluginName,
109 CmSubscriptionStatus.ACCEPTED);
110 dmiCacheHandler.persistIntoDatabasePerDmi(subscriptionId, dmiPluginName);
113 private void sendSubscriptionDeleteRequestToDmi(final String subscriptionId) {
114 final Map<String, DmiCmSubscriptionDetails> dmiSubscriptionsPerDmi =
115 dmiCacheHandler.get(subscriptionId);
116 dmiSubscriptionsPerDmi.forEach((dmiPluginName, dmiSubscriptionDetails) -> {
117 final DmiInEvent dmiInEvent = dmiInEventMapper.toDmiInEvent(
118 dmiSubscriptionDetails.getDmiCmSubscriptionPredicates());
119 dmiInEventProducer.publishDmiInEvent(subscriptionId, dmiPluginName,
120 "subscriptionDeleteRequest", dmiInEvent);