diff options
Diffstat (limited to 'src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription')
2 files changed, 216 insertions, 0 deletions
diff --git a/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventConsumer.java b/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventConsumer.java new file mode 100644 index 00000000..d7622fae --- /dev/null +++ b/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventConsumer.java @@ -0,0 +1,123 @@ +/* + * ============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.avcsubscription; + +import io.cloudevents.CloudEvent; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import lombok.RequiredArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.Data; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.SubscriptionEventResponse; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.SubscriptionStatus; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.CmHandle; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.SubscriptionEvent; +import org.springframework.beans.factory.annotation.Value; +import org.springframework.kafka.annotation.KafkaListener; +import org.springframework.kafka.core.KafkaTemplate; +import org.springframework.stereotype.Component; + +@Component +@Slf4j +@RequiredArgsConstructor +public class SubscriptionEventConsumer { + + @Value("${app.dmi.avc.subscription-response-topic}") + private String cmAvcSubscriptionResponseTopic; + @Value("${dmi.service.name}") + private String dmiName; + private final KafkaTemplate<String, CloudEvent> cloudEventKafkaTemplate; + + /** + * Consume the specified event. + * + * @param subscriptionCloudEvent the event to be consumed + */ + @KafkaListener(topics = "${app.dmi.avc.subscription-topic}", + containerFactory = "cloudEventConcurrentKafkaListenerContainerFactory") + public void consumeSubscriptionEvent(final ConsumerRecord<String, CloudEvent> subscriptionCloudEvent) { + final SubscriptionEvent subscriptionEvent = + SubscriptionEventResponseMapper.toSubscriptionEvent(subscriptionCloudEvent.value()); + if (subscriptionEvent != null) { + final String eventKey = subscriptionCloudEvent.value().getId(); + final String subscriptionType = subscriptionCloudEvent.value().getType(); + if ("subscriptionCreated".equals(subscriptionType)) { + sendSubscriptionResponseMessage(eventKey, "subscriptionCreatedStatus", + formSubscriptionEventResponse(subscriptionEvent)); + } + } + } + + /** + * Sends message to the configured topic. + * + * @param eventKey is the kafka message key + * @param subscriptionType is the type of subscription action + * @param subscriptionEventResponse is the payload of the kafka message + */ + public void sendSubscriptionResponseMessage(final String eventKey, + final String subscriptionType, + final SubscriptionEventResponse subscriptionEventResponse) { + cloudEventKafkaTemplate.send(cmAvcSubscriptionResponseTopic, eventKey, + SubscriptionEventResponseMapper.toCloudEvent(subscriptionEventResponse, subscriptionType, dmiName)); + } + + private SubscriptionEventResponse formSubscriptionEventResponse(final SubscriptionEvent subscriptionEvent) { + final SubscriptionEventResponse subscriptionEventResponse = new SubscriptionEventResponse(); + final Data subscriptionResponseData = new Data(); + subscriptionResponseData.setClientId(subscriptionEvent.getData().getSubscription().getClientID()); + subscriptionResponseData.setSubscriptionName(subscriptionEvent.getData().getSubscription().getName()); + subscriptionResponseData.setDmiName(dmiName); + + final List<CmHandle> cmHandles = subscriptionEvent.getData() + .getPredicates().getTargets(); + subscriptionResponseData + .setSubscriptionStatus( + populateSubscriptionStatus( + extractCmHandleIds(cmHandles))); + subscriptionEventResponse.setData(subscriptionResponseData); + return subscriptionEventResponse; + } + + private Set<String> extractCmHandleIds(final List<CmHandle> cmHandles) { + final Set<String> cmHandleIds = new HashSet<>(); + + for (final CmHandle cmHandle : cmHandles) { + cmHandleIds.add(cmHandle.getId()); + } + return cmHandleIds; + } + + private List<SubscriptionStatus> populateSubscriptionStatus(final Set<String> cmHandleIds) { + final List<SubscriptionStatus> subscriptionStatuses = new ArrayList<>(); + for (final String cmHandleId : cmHandleIds) { + final SubscriptionStatus status = new SubscriptionStatus(); + status.setId(cmHandleId); + status.setStatus(SubscriptionStatus.Status.ACCEPTED); + subscriptionStatuses.add(status); + } + return subscriptionStatuses; + } + +} diff --git a/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventResponseMapper.java b/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventResponseMapper.java new file mode 100644 index 00000000..d7609932 --- /dev/null +++ b/src/main/java/org/onap/cps/ncmp/dmi/notifications/avcsubscription/SubscriptionEventResponseMapper.java @@ -0,0 +1,93 @@ +/* + * ============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.avcsubscription; + +import com.fasterxml.jackson.databind.ObjectMapper; +import io.cloudevents.CloudEvent; +import io.cloudevents.core.CloudEventUtils; +import io.cloudevents.core.builder.CloudEventBuilder; +import io.cloudevents.core.data.PojoCloudEventData; +import io.cloudevents.jackson.PojoCloudEventDataMapper; +import java.net.URI; +import java.util.UUID; +import lombok.AccessLevel; +import lombok.NoArgsConstructor; +import lombok.extern.slf4j.Slf4j; +import org.onap.cps.ncmp.dmi.exception.CloudEventConstructionException; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.SubscriptionEventResponse; +import org.onap.cps.ncmp.events.avcsubscription1_0_0.ncmp_to_dmi.SubscriptionEvent; + +@NoArgsConstructor(access = AccessLevel.PRIVATE) +@Slf4j +public class SubscriptionEventResponseMapper { + + private static final ObjectMapper objectMapper = new ObjectMapper(); + + /** + * Maps CloudEvent object to SubscriptionEvent object. + * + * @param cloudEvent object + * @return SubscriptionEvent deserialized + */ + public static SubscriptionEvent toSubscriptionEvent(final CloudEvent cloudEvent) { + final PojoCloudEventData<SubscriptionEvent> deserializedCloudEvent = + CloudEventUtils.mapData(cloudEvent, + PojoCloudEventDataMapper.from(objectMapper, SubscriptionEvent.class)); + if (deserializedCloudEvent == null) { + log.debug("No data found in the consumed subscription response event"); + return null; + } else { + final SubscriptionEvent subscriptionEvent = deserializedCloudEvent.getValue(); + log.debug("Consuming subscription response event {}", subscriptionEvent); + return subscriptionEvent; + } + } + + /** + * Maps SubscriptionEventResponse to a CloudEvent. + * + * @param subscriptionEventResponse object. + * @param subscriptionType String of subscription type. + * @param dmiName String of dmiName. + * @return CloudEvent built. + */ + public static CloudEvent toCloudEvent( + final org.onap.cps.ncmp.events.avcsubscription1_0_0.dmi_to_ncmp.SubscriptionEventResponse + subscriptionEventResponse, + final String subscriptionType, + final String dmiName) { + try { + return CloudEventBuilder.v1().withId(UUID.randomUUID().toString()) + .withSource(URI.create(dmiName)) + .withType(subscriptionType) + .withDataSchema(URI.create("urn:cps:" + SubscriptionEventResponse.class.getName() + ":1.0.0")) + .withExtension("correlationid", subscriptionEventResponse.getData().getClientId() + ":" + + subscriptionEventResponse.getData().getSubscriptionName()) + .withData(objectMapper.writeValueAsBytes(subscriptionEventResponse)) + .build(); + } catch (final Exception ex) { + throw new CloudEventConstructionException("The Cloud Event could not be constructed", "Invalid object to " + + "serialize or required headers is missing", ex); + } + } + + +} |