NCMP to Client Cm Subscription Event

- CmNotificationSubscriptionNcmpOut event to inform the client about the
  subscription he requested
- Testware for the same
- Code to provide the data to this producer will be part of other
  patches

Issue-ID: CPS-2108
Change-Id: Ic302e798a20da54dd3c56d2cb792b800446cc2d3
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

2 files changed, 119 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducer.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducer.java
new file mode 100644
index 0000000000..21468c316c
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducer.java
@@ -0,0 +1,75 @@
+/*
+ * ============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.api.impl.events.cmsubscription;
+
+import io.cloudevents.CloudEvent;
+import io.cloudevents.core.builder.CloudEventBuilder;
+import java.net.URI;
+import java.util.UUID;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.events.EventsPublisher;
+import org.onap.cps.ncmp.events.cmsubscription_merge1_0_0.ncmp_to_client.CmNotificationSubscriptionNcmpOutEvent;
+import org.onap.cps.utils.JsonObjectMapper;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+@RequiredArgsConstructor
+@ConditionalOnProperty(name = "notification.enabled", havingValue = "true", matchIfMissing = true)
+public class CmNotificationSubscriptionNcmpOutEventProducer {
+
+    private final EventsPublisher<CloudEvent> eventsPublisher;
+    private final JsonObjectMapper jsonObjectMapper;
+
+    @Value("${app.ncmp.avc.subscription-outcome-topic}")
+    private String cmNotificationSubscriptionNcmpOutEventTopic;
+
+    /**
+     * Publish the event to the client who requested the subscription with key as subscription id and event is Cloud
+     * Event compliant.
+     *
+     * @param subscriptionId                         Cm Subscription Id
+     * @param eventType                              Type of event
+     * @param cmNotificationSubscriptionNcmpOutEvent Cm Notification Subscription Event for the client
+     */
+    public void publishCmNotificationSubscriptionNcmpOutEvent(final String subscriptionId, final String eventType,
+            final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent) {
+
+        eventsPublisher.publishCloudEvent(cmNotificationSubscriptionNcmpOutEventTopic, subscriptionId,
+                buildAndGetCmNotificationNcmpOutEventAsCloudEvent(subscriptionId, eventType,
+                        cmNotificationSubscriptionNcmpOutEvent));
+
+    }
+
+    private CloudEvent buildAndGetCmNotificationNcmpOutEventAsCloudEvent(final String subscriptionId,
+            final String eventType,
+            final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent) {
+
+        return CloudEventBuilder.v1().withId(UUID.randomUUID().toString()).withType(eventType)
+                .withSource(URI.create("NCMP")).withDataSchema(URI.create("org.onap.ncmp.cm.subscription:1.0.0"))
+                .withExtension("correlationid", subscriptionId)
+                .withData(jsonObjectMapper.asJsonBytes(cmNotificationSubscriptionNcmpOutEvent)).build();
+    }
+
+}
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducerSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducerSpec.groovy
new file mode 100644
index 0000000000..7c1a148ad7
--- /dev/null
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmNotificationSubscriptionNcmpOutEventProducerSpec.groovy
@@ -0,0 +1,44 @@
+package org.onap.cps.ncmp.api.impl.events.cmsubscription
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import io.cloudevents.CloudEvent
+import org.onap.cps.events.EventsPublisher
+import org.onap.cps.ncmp.api.impl.events.mapper.CloudEventMapper
+import org.onap.cps.ncmp.events.cmsubscription_merge1_0_0.ncmp_to_client.CmNotificationSubscriptionNcmpOutEvent
+import org.onap.cps.ncmp.events.cmsubscription_merge1_0_0.ncmp_to_client.Data
+import org.onap.cps.utils.JsonObjectMapper
+import spock.lang.Specification
+
+class CmNotificationSubscriptionNcmpOutEventProducerSpec extends Specification {
+
+    def mockEventsPublisher = Mock(EventsPublisher)
+    def jsonObjectMapper = new JsonObjectMapper(new ObjectMapper())
+
+    def objectUnderTest = new CmNotificationSubscriptionNcmpOutEventProducer(mockEventsPublisher, jsonObjectMapper)
+
+    def 'Create and Publish Cm Notification Subscription DMI In Event'() {
+        given: 'a cm subscription response for the client'
+            def subscriptionId = 'test-subscription-id'
+            def eventType = 'subscriptionCreateResponse'
+            def cmNotificationSubscriptionNcmpOutEvent = new CmNotificationSubscriptionNcmpOutEvent(data: new Data(subscriptionId: 'sub-1', acceptedTargets: ['ch-1', 'ch-2']))
+        and: 'also we have target topic for publishing to client'
+            objectUnderTest.cmNotificationSubscriptionNcmpOutEventTopic = 'client-test-topic'
+        when: 'the event is published'
+            objectUnderTest.publishCmNotificationSubscriptionNcmpOutEvent(subscriptionId, eventType, cmNotificationSubscriptionNcmpOutEvent)
+        then: 'the event contains the required attributes'
+            1 * mockEventsPublisher.publishCloudEvent(_, _, _) >> {
+                args ->
+                    {
+                        assert args[0] == 'client-test-topic'
+                        assert args[1] == subscriptionId
+                        def cmNotificationSubscriptionNcmpOutEventAsCloudEvent = (args[2] as CloudEvent)
+                        assert cmNotificationSubscriptionNcmpOutEventAsCloudEvent.getExtension('correlationid') == subscriptionId
+                        assert cmNotificationSubscriptionNcmpOutEventAsCloudEvent.type == 'subscriptionCreateResponse'
+                        assert cmNotificationSubscriptionNcmpOutEventAsCloudEvent.source.toString() == 'NCMP'
+                        assert CloudEventMapper.toTargetEvent(cmNotificationSubscriptionNcmpOutEventAsCloudEvent, CmNotificationSubscriptionNcmpOutEvent) == cmNotificationSubscriptionNcmpOutEvent
+                    }
+            }
+    }
+
+
+}