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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.mapper;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.cloudevents.CloudEvent;
import io.cloudevents.core.CloudEventUtils;
import io.cloudevents.core.data.PojoCloudEventData;
import io.cloudevents.jackson.PojoCloudEventDataMapper;
import io.cloudevents.rw.CloudEventRWException;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
@Slf4j
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class CloudEventMapper {
private static final ObjectMapper objectMapper = new ObjectMapper();
/**
* Generic method to map cloud event data to target event class object.
*
* @param cloudEvent input cloud event
* @param targetEventClass target event class
* @param <T> target event class type
* @return mapped target event
*/
public static <T> T toTargetEvent(final CloudEvent cloudEvent, final Class<T> targetEventClass) {
PojoCloudEventData<T> mappedCloudEvent = null;
try {
mappedCloudEvent =
CloudEventUtils.mapData(cloudEvent, PojoCloudEventDataMapper.from(objectMapper, targetEventClass));
} catch (final CloudEventRWException cloudEventRwException) {
log.error("Unable to map cloud event to target event class type : {} with cause : {}", targetEventClass,
cloudEventRwException.getMessage());
}
return mappedCloudEvent == null ? null : mappedCloudEvent.getValue();
}
}
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