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/*
* ============LICENSE_START=======================================================
* Copyright (C) 2024 TechMahindra Ltd.
* 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.events;
import io.cloudevents.CloudEvent;
import io.micrometer.core.annotation.Timed;
import java.time.OffsetDateTime;
import java.util.HashMap;
import java.util.Map;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.onap.cps.events.model.CpsDataUpdatedEvent;
import org.onap.cps.events.model.Data;
import org.onap.cps.events.model.Data.Operation;
import org.onap.cps.spi.model.Anchor;
import org.onap.cps.utils.DateTimeUtility;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
@Slf4j
@Service
@RequiredArgsConstructor
public class CpsDataUpdateEventsService {
private final EventsPublisher<CpsDataUpdatedEvent> eventsPublisher;
@Value("${app.cps.data-updated.topic:cps-data-updated-events}")
private String topicName;
@Value("${app.cps.data-updated.change-event-notifications-enabled:true}")
private boolean cpsChangeEventNotificationsEnabled;
@Value("${notification.enabled:false}")
private boolean notificationsEnabled;
/**
* Publish the cps data update event with header to the public topic.
*
* @param anchor Anchor of the updated data
* @param xpath xpath of the updated data
* @param operation operation performed on the data
* @param observedTimestamp timestamp when data was updated.
*/
@Timed(value = "cps.dataupdate.events.publish", description = "Time taken to publish Data Update event")
public void publishCpsDataUpdateEvent(final Anchor anchor, final String xpath,
final Operation operation, final OffsetDateTime observedTimestamp) {
if (notificationsEnabled && cpsChangeEventNotificationsEnabled) {
final CpsDataUpdatedEvent cpsDataUpdatedEvent = createCpsDataUpdatedEvent(anchor,
observedTimestamp, xpath, operation);
final String updateEventId = anchor.getDataspaceName() + ":" + anchor.getName();
final Map<String, String> extensions = createUpdateEventExtensions(updateEventId);
final CloudEvent cpsDataUpdatedEventAsCloudEvent =
CpsEvent.builder().type(CpsDataUpdatedEvent.class.getTypeName()).data(cpsDataUpdatedEvent)
.extensions(extensions).build().asCloudEvent();
eventsPublisher.publishCloudEvent(topicName, updateEventId, cpsDataUpdatedEventAsCloudEvent);
} else {
log.debug("State of Overall Notifications : {} and Cps Change Event Notifications : {}",
notificationsEnabled, cpsChangeEventNotificationsEnabled);
}
}
private CpsDataUpdatedEvent createCpsDataUpdatedEvent(final Anchor anchor, final OffsetDateTime observedTimestamp,
final String xpath,
final Operation rootNodeOperation) {
final CpsDataUpdatedEvent cpsDataUpdatedEvent = new CpsDataUpdatedEvent();
final Data updateEventData = new Data();
updateEventData.setObservedTimestamp(DateTimeUtility.toString(observedTimestamp));
updateEventData.setDataspaceName(anchor.getDataspaceName());
updateEventData.setAnchorName(anchor.getName());
updateEventData.setSchemaSetName(anchor.getSchemaSetName());
updateEventData.setOperation(getRootNodeOperation(xpath, rootNodeOperation));
updateEventData.setXpath(xpath);
cpsDataUpdatedEvent.setData(updateEventData);
return cpsDataUpdatedEvent;
}
private Map<String, String> createUpdateEventExtensions(final String eventKey) {
final Map<String, String> extensions = new HashMap<>();
extensions.put("correlationid", eventKey);
return extensions;
}
private Operation getRootNodeOperation(final String xpath, final Operation operation) {
return isRootXpath(xpath) || isRootContainerNodeXpath(xpath) ? operation : Operation.UPDATE;
}
private static boolean isRootXpath(final String xpath) {
return "/".equals(xpath) || "".equals(xpath);
}
private static boolean isRootContainerNodeXpath(final String xpath) {
return 0 == xpath.lastIndexOf('/');
}
}
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