DMI Data AVC to cloud events

- DMI Data AVC to be consumed as CloudEvents now
- Removed the schema header as it is taken care by cloudevent headers
- Implemented naming and packaging comments on the schema
- Test cases refactoring

Issue-ID: CPS-1719
Change-Id: I9864f90446720fe903fb3c1502d86035d886751d
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

3 files changed, 24 insertions, 63 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/EventsPublisher.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/EventsPublisher.java
index 7b28b4cd5..e61e7729b 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/EventsPublisher.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/EventsPublisher.java
@@ -51,6 +51,19 @@ public class EventsPublisher<T> {
     private final KafkaTemplate<String, CloudEvent> cloudEventKafkaTemplate;
 
     /**
+     * Generic CloudEvent publisher.
+     *
+     * @param topicName valid topic name
+     * @param eventKey  message key
+     * @param event     message payload
+     */
+    public void publishCloudEvent(final String topicName, final String eventKey, final CloudEvent event) {
+        final ListenableFuture<SendResult<String, CloudEvent>> eventFuture
+                = cloudEventKafkaTemplate.send(topicName, eventKey, event);
+        eventFuture.addCallback(handleCallback(topicName));
+    }
+
+    /**
      * Generic Event publisher.
      *
      * @param topicName valid topic name
@@ -95,7 +108,7 @@ public class EventsPublisher<T> {
         publishEvent(topicName, eventKey, convertToKafkaHeaders(eventHeaders), event);
     }
 
-    private ListenableFutureCallback<SendResult<String, T>> handleCallback(final String topicName) {
+    private ListenableFutureCallback<SendResult<String, ?>> handleCallback(final String topicName) {
         return new ListenableFutureCallback<>() {
             @Override
             public void onFailure(final Throwable throwable) {
@@ -103,7 +116,7 @@ public class EventsPublisher<T> {
             }
 
             @Override
-            public void onSuccess(final SendResult<String, T> sendResult) {
+            public void onSuccess(final SendResult<String, ?> sendResult) {
                 log.debug("Successfully published event to topic : {} , Event : {}",
                         sendResult.getRecordMetadata().topic(), sendResult.getProducerRecord().value());
             }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventConsumer.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventConsumer.java
index f37497abe..b5ca176d1 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventConsumer.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventConsumer.java
@@ -20,19 +20,17 @@
 
 package org.onap.cps.ncmp.api.impl.events.avc;
 
+import io.cloudevents.CloudEvent;
+import io.cloudevents.core.builder.CloudEventBuilder;
 import java.util.UUID;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.consumer.ConsumerRecord;
-import org.apache.kafka.common.header.Headers;
-import org.apache.kafka.common.header.internals.RecordHeader;
 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
-import org.onap.cps.ncmp.events.avc.v1.AvcEvent;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.kafka.annotation.KafkaListener;
 import org.springframework.stereotype.Component;
-import org.springframework.util.SerializationUtils;
 
 /**
  * Listener for AVC events.
@@ -47,34 +45,19 @@ public class AvcEventConsumer {
     @Value("${app.ncmp.avc.cm-events-topic}")
     private String cmEventsTopicName;
 
-    private final EventsPublisher<AvcEvent> eventsPublisher;
-    private final AvcEventMapper avcEventMapper;
-
+    private final EventsPublisher<CloudEvent> eventsPublisher;
 
     /**
      * Incoming AvcEvent in the form of Consumer Record.
      *
      * @param avcEventConsumerRecord Incoming raw consumer record
      */
-    @KafkaListener(topics = "${app.dmi.cm-events.topic}",
-            properties = {"spring.json.value.default.type=org.onap.cps.ncmp.events.avc.v1.AvcEvent"})
-    public void consumeAndForward(final ConsumerRecord<String, AvcEvent> avcEventConsumerRecord) {
+    @KafkaListener(topics = "${app.dmi.cm-events.topic}")
+    public void consumeAndForward(final ConsumerRecord<String, CloudEvent> avcEventConsumerRecord) {
         log.debug("Consuming AVC event {} ...", avcEventConsumerRecord.value());
-        final String mutatedEventId = UUID.randomUUID().toString();
-        mutateEventHeaderWithEventId(avcEventConsumerRecord.headers(), mutatedEventId);
-        final AvcEvent outgoingAvcEvent = avcEventMapper.toOutgoingAvcEvent(avcEventConsumerRecord.value());
-        eventsPublisher.publishEvent(cmEventsTopicName, mutatedEventId, avcEventConsumerRecord.headers(),
-                outgoingAvcEvent);
-    }
-
-    private void mutateEventHeaderWithEventId(final Headers eventHeaders, final String mutatedEventId) {
-        final String eventId = "eventId";
-        final String existingEventId =
-                (String) SerializationUtils.deserialize(eventHeaders.lastHeader(eventId).value());
-        eventHeaders.remove(eventId);
-        log.info("Removing existing eventId from header : {} and updating with id : {}", existingEventId,
-                mutatedEventId);
-        eventHeaders.add(new RecordHeader(eventId, SerializationUtils.serialize(mutatedEventId)));
-
+        final String newEventId = UUID.randomUUID().toString();
+        final CloudEvent outgoingAvcEvent =
+                CloudEventBuilder.from(avcEventConsumerRecord.value()).withId(newEventId).build();
+        eventsPublisher.publishCloudEvent(cmEventsTopicName, newEventId, outgoingAvcEvent);
     }
 }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventMapper.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventMapper.java
deleted file mode 100644
index 8246ed480..000000000
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/avc/AvcEventMapper.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Copyright (C) 2023 Nordix Foundation
- * ================================================================================
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *       http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.ncmp.api.impl.events.avc;
-
-import org.mapstruct.Mapper;
-import org.onap.cps.ncmp.events.avc.v1.AvcEvent;
-
-
-/**
- * Mapper for converting incoming {@link AvcEvent} to outgoing {@link AvcEvent}.
- */
-@Mapper(componentModel = "spring")
-public interface AvcEventMapper {
-
-    AvcEvent toOutgoingAvcEvent(AvcEvent incomingAvcEvent);
-
-}