1 files changed, 97 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpInEventConsumer.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpInEventConsumer.java
new file mode 100644
index 000000000..c64ebacb0
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpInEventConsumer.java
@@ -0,0 +1,97 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2022-2023 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.api.impl.events.cmsubscription;
+
+import static org.onap.cps.ncmp.api.impl.operations.DatastoreType.PASSTHROUGH_OPERATIONAL;
+import static org.onap.cps.ncmp.api.impl.operations.DatastoreType.PASSTHROUGH_RUNNING;
+
+import io.cloudevents.CloudEvent;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
+import org.onap.cps.ncmp.api.impl.utils.CmSubscriptionEventCloudMapper;
+import org.onap.cps.ncmp.api.impl.yangmodels.YangModelSubscriptionEvent;
+import org.onap.cps.ncmp.events.cmsubscription1_0_0.client_to_ncmp.CmSubscriptionNcmpInEvent;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.kafka.annotation.KafkaListener;
+import org.springframework.stereotype.Component;
+
+
+@Component
+@Slf4j
+@RequiredArgsConstructor
+public class CmSubscriptionNcmpInEventConsumer {
+
+    private final CmSubscriptionNcmpInEventForwarder cmSubscriptionNcmpInEventForwarder;
+    private final CmSubscriptionNcmpInEventMapper cmSubscriptionNcmpInEventMapper;
+    private final SubscriptionPersistence subscriptionPersistence;
+    private final CmSubscriptionEventCloudMapper cmSubscriptionEventCloudMapper;
+
+    @Value("${notification.enabled:true}")
+    private boolean notificationFeatureEnabled;
+
+    @Value("${ncmp.model-loader.subscription:false}")
+    private boolean subscriptionModelLoaderEnabled;
+
+    /**
+     * Consume the specified event.
+     *
+     * @param subscriptionEventConsumerRecord the event to be consumed
+     */
+    @KafkaListener(topics = "${app.ncmp.avc.subscription-topic}",
+            containerFactory = "cloudEventConcurrentKafkaListenerContainerFactory")
+    public void consumeSubscriptionEvent(final ConsumerRecord<String, CloudEvent> subscriptionEventConsumerRecord) {
+        final CloudEvent cloudEvent = subscriptionEventConsumerRecord.value();
+        final String eventType = subscriptionEventConsumerRecord.value().getType();
+        final CmSubscriptionNcmpInEvent cmSubscriptionNcmpInEvent =
+                cmSubscriptionEventCloudMapper.toCmSubscriptionNcmpInEvent(cloudEvent);
+        final String eventDatastore = cmSubscriptionNcmpInEvent.getData().getPredicates().getDatastore();
+        if (!eventDatastore.equals(PASSTHROUGH_RUNNING.getDatastoreName()) || eventDatastore.equals(
+                PASSTHROUGH_OPERATIONAL.getDatastoreName())) {
+            throw new UnsupportedOperationException(
+                    "passthrough datastores are currently only supported for event subscriptions");
+        }
+        if ("CM".equals(cmSubscriptionNcmpInEvent.getData().getDataType().getDataCategory())) {
+            if (subscriptionModelLoaderEnabled) {
+                persistSubscriptionEvent(cmSubscriptionNcmpInEvent);
+            }
+            if ("subscriptionCreated".equals(cloudEvent.getType())) {
+                log.info("Subscription for ClientID {} with name {} ...",
+                        cmSubscriptionNcmpInEvent.getData().getSubscription().getClientID(),
+                        cmSubscriptionNcmpInEvent.getData().getSubscription().getName());
+                if (notificationFeatureEnabled) {
+                    cmSubscriptionNcmpInEventForwarder.forwardCreateSubscriptionEvent(cmSubscriptionNcmpInEvent,
+                            eventType);
+                }
+            }
+        } else {
+            log.trace("Non-CM subscription event ignored");
+        }
+    }
+
+    private void persistSubscriptionEvent(final CmSubscriptionNcmpInEvent cmSubscriptionNcmpInEvent) {
+        final YangModelSubscriptionEvent yangModelSubscriptionEvent =
+                cmSubscriptionNcmpInEventMapper.toYangModelSubscriptionEvent(cmSubscriptionNcmpInEvent);
+        subscriptionPersistence.saveSubscriptionEvent(yangModelSubscriptionEvent);
+    }
+
+}