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/*
* ============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.dmi.notifications.cmsubscription;
import io.cloudevents.CloudEvent;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import lombok.RequiredArgsConstructor;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.onap.cps.ncmp.dmi.notifications.mapper.CloudEventMapper;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.dmi_to_ncmp.CmSubscriptionDmiOutEvent;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.dmi_to_ncmp.Data;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.dmi_to_ncmp.SubscriptionStatus;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.ncmp_to_dmi.CmHandle;
import org.onap.cps.ncmp.events.cmsubscription1_0_0.ncmp_to_dmi.CmSubscriptionDmiInEvent;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.kafka.annotation.KafkaListener;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.stereotype.Service;
@Service
@RequiredArgsConstructor
public class CmSubscriptionDmiInEventConsumer {
@Value("${app.dmi.avc.subscription-response-topic}")
private String cmAvcSubscriptionResponseTopic;
@Value("${dmi.service.name}")
private String dmiName;
private final KafkaTemplate<String, CloudEvent> cloudEventKafkaTemplate;
/**
* Consume the specified event.
*
* @param cmSubscriptionDmiInCloudEvent the event to be consumed
*/
@KafkaListener(topics = "${app.dmi.avc.subscription-topic}",
containerFactory = "cloudEventConcurrentKafkaListenerContainerFactory")
public void consumeCmSubscriptionDmiInEvent(
final ConsumerRecord<String, CloudEvent> cmSubscriptionDmiInCloudEvent) {
final CmSubscriptionDmiInEvent cmSubscriptionDmiInEvent =
CloudEventMapper.toTargetEvent(cmSubscriptionDmiInCloudEvent.value(), CmSubscriptionDmiInEvent.class);
if (cmSubscriptionDmiInEvent != null) {
final String eventKey = cmSubscriptionDmiInCloudEvent.value().getId();
final String subscriptionType = cmSubscriptionDmiInCloudEvent.value().getType();
if ("subscriptionCreated".equals(subscriptionType)) {
sendCmSubscriptionDmiOutEvent(eventKey, "subscriptionCreatedStatus",
formCmSubscriptionDmiOutEvent(cmSubscriptionDmiInEvent));
} else if ("subscriptionDeleted".equals(subscriptionType)) {
sendCmSubscriptionDmiOutEvent(eventKey, "subscriptionDeletedStatus",
formCmSubscriptionDmiOutEvent(cmSubscriptionDmiInEvent));
}
}
}
/**
* Sends message to the configured topic.
*
* @param eventKey is the kafka message key
* @param subscriptionType is the type of subscription action
* @param cmSubscriptionDmiOutEvent is the payload of the kafka message
*/
public void sendCmSubscriptionDmiOutEvent(final String eventKey, final String subscriptionType,
final CmSubscriptionDmiOutEvent cmSubscriptionDmiOutEvent) {
cloudEventKafkaTemplate.send(cmAvcSubscriptionResponseTopic, eventKey,
CmSubscriptionDmiOutEventToCloudEventMapper.toCloudEvent(cmSubscriptionDmiOutEvent, subscriptionType,
dmiName));
}
private CmSubscriptionDmiOutEvent formCmSubscriptionDmiOutEvent(
final CmSubscriptionDmiInEvent cmSubscriptionDmiInEvent) {
final CmSubscriptionDmiOutEvent cmSubscriptionDmiOutEvent = new CmSubscriptionDmiOutEvent();
final Data cmSubscriptionDmiOutEventData = new Data();
cmSubscriptionDmiOutEventData.setClientId(cmSubscriptionDmiInEvent.getData().getSubscription().getClientID());
cmSubscriptionDmiOutEventData.setSubscriptionName(
cmSubscriptionDmiInEvent.getData().getSubscription().getName());
cmSubscriptionDmiOutEventData.setDmiName(dmiName);
final List<CmHandle> cmHandles = cmSubscriptionDmiInEvent.getData().getPredicates().getTargets();
cmSubscriptionDmiOutEventData.setSubscriptionStatus(populateSubscriptionStatus(extractCmHandleIds(cmHandles)));
cmSubscriptionDmiOutEvent.setData(cmSubscriptionDmiOutEventData);
return cmSubscriptionDmiOutEvent;
}
private Set<String> extractCmHandleIds(final List<CmHandle> cmHandles) {
final Set<String> cmHandleIds = new HashSet<>();
for (final CmHandle cmHandle : cmHandles) {
cmHandleIds.add(cmHandle.getId());
}
return cmHandleIds;
}
private List<SubscriptionStatus> populateSubscriptionStatus(final Set<String> cmHandleIds) {
final List<SubscriptionStatus> subscriptionStatuses = new ArrayList<>();
for (final String cmHandleId : cmHandleIds) {
final SubscriptionStatus status = new SubscriptionStatus();
status.setId(cmHandleId);
status.setStatus(SubscriptionStatus.Status.ACCEPTED);
subscriptionStatuses.add(status);
}
return subscriptionStatuses;
}
}
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