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
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.api.impl.events.avc;
23 import java.util.UUID;
24 import lombok.RequiredArgsConstructor;
25 import lombok.extern.slf4j.Slf4j;
26 import org.apache.kafka.clients.consumer.ConsumerRecord;
27 import org.apache.kafka.common.header.Headers;
28 import org.apache.kafka.common.header.internals.RecordHeader;
29 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
30 import org.onap.cps.ncmp.events.avc.v1.AvcEvent;
31 import org.springframework.beans.factory.annotation.Value;
32 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
33 import org.springframework.kafka.annotation.KafkaListener;
34 import org.springframework.stereotype.Component;
35 import org.springframework.util.SerializationUtils;
38 * Listener for AVC events.
42 @RequiredArgsConstructor
43 @ConditionalOnProperty(name = "notification.enabled", havingValue = "true", matchIfMissing = true)
44 public class AvcEventConsumer {
47 @Value("${app.ncmp.avc.cm-events-topic}")
48 private String cmEventsTopicName;
50 private final EventsPublisher<AvcEvent> eventsPublisher;
51 private final AvcEventMapper avcEventMapper;
55 * Incoming AvcEvent in the form of Consumer Record.
57 * @param avcEventConsumerRecord Incoming raw consumer record
59 @KafkaListener(topics = "${app.dmi.cm-events.topic}",
60 properties = {"spring.json.value.default.type=org.onap.cps.ncmp.events.avc.v1.AvcEvent"})
61 public void consumeAndForward(final ConsumerRecord<String, AvcEvent> avcEventConsumerRecord) {
62 log.debug("Consuming AVC event {} ...", avcEventConsumerRecord.value());
63 final String mutatedEventId = UUID.randomUUID().toString();
64 mutateEventHeaderWithEventId(avcEventConsumerRecord.headers(), mutatedEventId);
65 final AvcEvent outgoingAvcEvent = avcEventMapper.toOutgoingAvcEvent(avcEventConsumerRecord.value());
66 eventsPublisher.publishEvent(cmEventsTopicName, mutatedEventId, avcEventConsumerRecord.headers(),
70 private void mutateEventHeaderWithEventId(final Headers eventHeaders, final String mutatedEventId) {
71 final String eventId = "eventId";
72 final String existingEventId =
73 (String) SerializationUtils.deserialize(eventHeaders.lastHeader(eventId).value());
74 eventHeaders.remove(eventId);
75 log.info("Removing existing eventId from header : {} and updating with id : {}", existingEventId,
77 eventHeaders.add(new RecordHeader(eventId, SerializationUtils.serialize(mutatedEventId)));