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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.api.impl.events.avcsubscription;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.common.header.Headers;
import org.apache.kafka.common.header.internals.RecordHeaders;
import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus;
import org.onap.cps.ncmp.api.impl.utils.DataNodeHelper;
import org.onap.cps.ncmp.api.models.SubscriptionEventResponse;
import org.onap.cps.ncmp.events.avc.subscription.v1.SubscriptionEventOutcome;
import org.onap.cps.spi.model.DataNode;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
@Component
@Slf4j
@RequiredArgsConstructor
public class SubscriptionEventResponseOutcome {
private final SubscriptionPersistence subscriptionPersistence;
private final EventsPublisher<SubscriptionEventOutcome> outcomeEventsPublisher;
private final SubscriptionOutcomeMapper subscriptionOutcomeMapper;
@Value("${app.ncmp.avc.subscription-outcome-topic:cm-avc-subscription-response}")
private String subscriptionOutcomeEventTopic;
/**
* This is for construction of outcome message to be published for client apps.
*
* @param subscriptionClientId client id of the subscription.
* @param subscriptionName name of the subscription.
* @param isFullOutcomeResponse the flag to decide on complete or partial response to be generated.
*/
public void sendResponse(final String subscriptionClientId, final String subscriptionName,
final boolean isFullOutcomeResponse) {
final SubscriptionEventOutcome subscriptionEventOutcome = generateResponse(
subscriptionClientId, subscriptionName, isFullOutcomeResponse);
final Headers headers = new RecordHeaders();
final String subscriptionEventId = subscriptionClientId + subscriptionName;
outcomeEventsPublisher.publishEvent(subscriptionOutcomeEventTopic,
subscriptionEventId, headers, subscriptionEventOutcome);
}
private SubscriptionEventOutcome generateResponse(final String subscriptionClientId, final String subscriptionName,
final boolean isFullOutcomeResponse) {
final Collection<DataNode> dataNodes = subscriptionPersistence.getDataNodesForSubscriptionEvent();
final List<Map<String, Serializable>> dataNodeLeaves = DataNodeHelper.getDataNodeLeaves(dataNodes);
final List<Collection<Serializable>> cmHandleIdToStatus =
DataNodeHelper.getCmHandleIdToStatus(dataNodeLeaves);
return formSubscriptionOutcomeMessage(cmHandleIdToStatus, subscriptionClientId, subscriptionName,
isFullOutcomeResponse);
}
private SubscriptionEventOutcome formSubscriptionOutcomeMessage(
final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
final String subscriptionName, final boolean isFullOutcomeResponse) {
final SubscriptionEventResponse subscriptionEventResponse = toSubscriptionEventResponse(
cmHandleIdToStatus, subscriptionClientId, subscriptionName);
final SubscriptionEventOutcome subscriptionEventOutcome =
subscriptionOutcomeMapper.toSubscriptionEventOutcome(subscriptionEventResponse);
if (isFullOutcomeResponse) {
subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.COMPLETE_OUTCOME);
} else {
subscriptionEventOutcome.setEventType(SubscriptionEventOutcome.EventType.PARTIAL_OUTCOME);
}
return subscriptionEventOutcome;
}
private SubscriptionEventResponse toSubscriptionEventResponse(
final List<Collection<Serializable>> cmHandleIdToStatus, final String subscriptionClientId,
final String subscriptionName) {
final Map<String, SubscriptionStatus> cmHandleIdToStatusMap = new HashMap<>();
final SubscriptionEventResponse subscriptionEventResponse = new SubscriptionEventResponse();
subscriptionEventResponse.setClientId(subscriptionClientId);
subscriptionEventResponse.setSubscriptionName(subscriptionName);
for (final Collection<Serializable> cmHandleToStatusBucket: cmHandleIdToStatus) {
final Iterator<Serializable> bucketIterator = cmHandleToStatusBucket.iterator();
while (bucketIterator.hasNext()) {
final String item = (String) bucketIterator.next();
if ("PENDING".equals(item)) {
cmHandleIdToStatusMap.put((String) bucketIterator.next(),
SubscriptionStatus.PENDING);
}
if ("REJECTED".equals(item)) {
cmHandleIdToStatusMap.put((String) bucketIterator.next(),
SubscriptionStatus.REJECTED);
}
if ("ACCEPTED".equals(item)) {
cmHandleIdToStatusMap.put((String) bucketIterator.next(),
SubscriptionStatus.ACCEPTED);
}
}
}
subscriptionEventResponse.setCmHandleIdToStatus(cmHandleIdToStatusMap);
return subscriptionEventResponse;
}
}
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