diff options
Diffstat (limited to 'src/main/java/org/onap/cps/ncmp/dmi/notifications/mapper/CloudEventMapper.java')
-rw-r--r-- | src/main/java/org/onap/cps/ncmp/dmi/notifications/mapper/CloudEventMapper.java | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/src/main/java/org/onap/cps/ncmp/dmi/notifications/mapper/CloudEventMapper.java b/src/main/java/org/onap/cps/ncmp/dmi/notifications/mapper/CloudEventMapper.java new file mode 100644 index 00000000..8f196cfc --- /dev/null +++ b/src/main/java/org/onap/cps/ncmp/dmi/notifications/mapper/CloudEventMapper.java @@ -0,0 +1,62 @@ +/* + * ============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.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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