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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2024 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.cmsubscription;
import io.cloudevents.CloudEvent;
import io.cloudevents.core.builder.CloudEventBuilder;
import java.net.URI;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.events.EventsPublisher;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.mapper.CmNotificationSubscriptionNcmpOutEventMapper;
import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionDetails;
import org.onap.cps.ncmp.events.cmsubscription_merge1_0_0.ncmp_to_client.CmNotificationSubscriptionNcmpOutEvent;
import org.onap.cps.utils.JsonObjectMapper;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.stereotype.Component;
@Component
@Slf4j
@RequiredArgsConstructor
@ConditionalOnProperty(name = "notification.enabled", havingValue = "true", matchIfMissing = true)
public class CmNotificationSubscriptionNcmpOutEventProducer {
@Value("${app.ncmp.avc.subscription-outcome-topic}")
private String cmNotificationSubscriptionNcmpOutEventTopic;
@Value("${ncmp.timers.subscription-forwarding.dmi-response-timeout-ms}")
private Integer cmNotificationSubscriptionDmiOutEventTimeoutInMs;
private final EventsPublisher<CloudEvent> eventsPublisher;
private final JsonObjectMapper jsonObjectMapper;
private final Map<String, Map<String, DmiCmNotificationSubscriptionDetails>> cmNotificationSubscriptionCache;
private final CmNotificationSubscriptionNcmpOutEventMapper cmNotificationSubscriptionNcmpOutEventMapper;
private final ScheduledExecutorService scheduledExecutorService = Executors.newSingleThreadScheduledExecutor();
private static final Map<String, ScheduledFuture<?>> scheduledTasksPerSubscriptionId = new ConcurrentHashMap<>();
/**
* Publish the event to the client who requested the subscription with key as subscription id and event is Cloud
* Event compliant.
*
* @param subscriptionId Cm Subscription Id
* @param eventType Type of event
* @param cmNotificationSubscriptionNcmpOutEvent Cm Notification Subscription Event for the
* client
* @param isScheduledEvent Determines if the event is to be scheduled
* or published now
*/
public void publishCmNotificationSubscriptionNcmpOutEvent(final String subscriptionId, final String eventType,
final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent,
final boolean isScheduledEvent) {
if (isScheduledEvent && !scheduledTasksPerSubscriptionId.containsKey(subscriptionId)) {
final ScheduledFuture<?> scheduledFuture =
scheduleAndPublishCmNotificationSubscriptionNcmpOutEvent(subscriptionId, eventType);
scheduledTasksPerSubscriptionId.putIfAbsent(subscriptionId, scheduledFuture);
log.debug("Scheduled the CmNotificationSubscriptionEvent for subscriptionId : {}", subscriptionId);
} else {
cancelScheduledTaskForSubscriptionId(subscriptionId);
publishCmNotificationSubscriptionNcmpOutEventNow(subscriptionId, eventType,
cmNotificationSubscriptionNcmpOutEvent);
log.info("Published CmNotificationSubscriptionEvent on demand for subscriptionId : {}", subscriptionId);
}
}
private ScheduledFuture<?> scheduleAndPublishCmNotificationSubscriptionNcmpOutEvent(final String subscriptionId,
final String eventType) {
final CmNotificationSubscriptionNcmpOutEventPublishingTask
cmNotificationSubscriptionNcmpOutEventPublishingTask =
new CmNotificationSubscriptionNcmpOutEventPublishingTask(cmNotificationSubscriptionNcmpOutEventTopic,
subscriptionId, eventType, eventsPublisher, jsonObjectMapper, cmNotificationSubscriptionCache,
cmNotificationSubscriptionNcmpOutEventMapper);
return scheduledExecutorService.schedule(cmNotificationSubscriptionNcmpOutEventPublishingTask,
cmNotificationSubscriptionDmiOutEventTimeoutInMs, TimeUnit.MILLISECONDS);
}
private void cancelScheduledTaskForSubscriptionId(final String subscriptionId) {
final ScheduledFuture<?> scheduledFuture = scheduledTasksPerSubscriptionId.get(subscriptionId);
if (scheduledFuture != null) {
scheduledFuture.cancel(true);
scheduledTasksPerSubscriptionId.remove(subscriptionId);
}
}
private void publishCmNotificationSubscriptionNcmpOutEventNow(final String subscriptionId, final String eventType,
final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent) {
final CloudEvent cmNotificationSubscriptionNcmpOutEventAsCloudEvent =
buildAndGetCmNotificationNcmpOutEventAsCloudEvent(jsonObjectMapper, subscriptionId, eventType,
cmNotificationSubscriptionNcmpOutEvent);
eventsPublisher.publishCloudEvent(cmNotificationSubscriptionNcmpOutEventTopic, subscriptionId,
cmNotificationSubscriptionNcmpOutEventAsCloudEvent);
}
protected static CloudEvent buildAndGetCmNotificationNcmpOutEventAsCloudEvent(
final JsonObjectMapper jsonObjectMapper, final String subscriptionId, final String eventType,
final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent) {
return CloudEventBuilder.v1().withId(UUID.randomUUID().toString()).withType(eventType)
.withSource(URI.create("NCMP")).withDataSchema(URI.create("org.onap.ncmp.cm.subscription:1.0.0"))
.withExtension("correlationid", subscriptionId)
.withData(jsonObjectMapper.asJsonBytes(cmNotificationSubscriptionNcmpOutEvent)).build();
}
}
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