Mapper to form CmNotificationSubscriptionNcmpOutEvent

- mapper to be used in the subsequent patches
- test case to support the mapping of
  CmNotificationSubscriptionNcmpOutEvent

Issue-ID: CPS-2147
Change-Id: I7f0be81941b774a27ddc343ed304a68c23796a60
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

2 files changed, 151 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapper.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapper.java
new file mode 100644
index 000000000..668f4517e
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapper.java
@@ -0,0 +1,96 @@
+/*
+ * ============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.mapper;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import lombok.RequiredArgsConstructor;
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.CmNotificationSubscriptionStatus;
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionDetails;
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionPredicate;
+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.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class CmNotificationSubscriptionNcmpOutEventMapper {
+
+    /**
+     * Mapper to form a response for the client for the Cm Notification Subscription.
+     *
+     * @param subscriptionId                          Cm Notification Subscription Id
+     * @param dmiCmNotificationSubscriptionDetailsMap contains CmNotificationSubscriptionDetails per dmi plugin
+     * @return CmNotificationSubscriptionNcmpOutEvent to sent back to the client
+     */
+    public CmNotificationSubscriptionNcmpOutEvent toCmNotificationSubscriptionNcmpOutEvent(final String subscriptionId,
+            final Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsMap) {
+
+        final CmNotificationSubscriptionNcmpOutEvent cmNotificationSubscriptionNcmpOutEvent =
+                new CmNotificationSubscriptionNcmpOutEvent();
+        final Data cmSubscriptionData = new Data();
+        cmSubscriptionData.setSubscriptionId(subscriptionId);
+        populateCmNotificationSubscriptionNcmpOutEventWithCmHandleIds(dmiCmNotificationSubscriptionDetailsMap,
+                cmSubscriptionData);
+        cmNotificationSubscriptionNcmpOutEvent.setData(cmSubscriptionData);
+
+        return cmNotificationSubscriptionNcmpOutEvent;
+    }
+
+    private void populateCmNotificationSubscriptionNcmpOutEventWithCmHandleIds(
+            final Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsMap,
+            final Data cmSubscriptionData) {
+
+        final List<String> acceptedCmHandleIds = new ArrayList<>();
+        final List<String> pendingCmHandleIds = new ArrayList<>();
+        final List<String> rejectedCmHandleIds = new ArrayList<>();
+
+        dmiCmNotificationSubscriptionDetailsMap.forEach((dmiPluginName, dmiCmNotificationSubscriptionDetails) -> {
+            final CmNotificationSubscriptionStatus cmNotificationSubscriptionStatus =
+                    dmiCmNotificationSubscriptionDetails.getCmNotificationSubscriptionStatus();
+            final List<DmiCmNotificationSubscriptionPredicate> dmiCmNotificationSubscriptionPredicates =
+                    dmiCmNotificationSubscriptionDetails.getDmiCmNotificationSubscriptionPredicates();
+
+            switch (cmNotificationSubscriptionStatus) {
+                case ACCEPTED -> acceptedCmHandleIds.addAll(
+                        extractCmHandleIds(dmiCmNotificationSubscriptionPredicates));
+                case PENDING -> pendingCmHandleIds.addAll(extractCmHandleIds(dmiCmNotificationSubscriptionPredicates));
+                default -> rejectedCmHandleIds.addAll(extractCmHandleIds(dmiCmNotificationSubscriptionPredicates));
+            }
+        });
+
+        cmSubscriptionData.setAcceptedTargets(acceptedCmHandleIds);
+        cmSubscriptionData.setPendingTargets(pendingCmHandleIds);
+        cmSubscriptionData.setRejectedTargets(rejectedCmHandleIds);
+
+    }
+
+    private List<String> extractCmHandleIds(
+            final List<DmiCmNotificationSubscriptionPredicate> dmiCmNotificationSubscriptionPredicates) {
+        final List<String> cmHandleIds = new ArrayList<>();
+        dmiCmNotificationSubscriptionPredicates.forEach(dmiCmNotificationSubscriptionPredicate -> cmHandleIds.addAll(
+                dmiCmNotificationSubscriptionPredicate.getTargetCmHandleIds()));
+
+        return cmHandleIds;
+    }
+
+}
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapperSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapperSpec.groovy
new file mode 100644
index 000000000..93bb480b4
--- /dev/null
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/mapper/CmNotificationSubscriptionNcmpOutEventMapperSpec.groovy
@@ -0,0 +1,55 @@
+/*
+ * ============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.mapper
+
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.CmNotificationSubscriptionStatus
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionDetails
+import org.onap.cps.ncmp.api.impl.events.cmsubscription.model.DmiCmNotificationSubscriptionPredicate
+import org.onap.cps.ncmp.api.impl.operations.DatastoreType
+import spock.lang.Specification
+
+class CmNotificationSubscriptionNcmpOutEventMapperSpec extends Specification {
+
+    static Map<String, DmiCmNotificationSubscriptionDetails> dmiCmNotificationSubscriptionDetailsMap
+
+    def objectUnderTest = new CmNotificationSubscriptionNcmpOutEventMapper()
+
+    def setup() {
+        def dmiCmNotificationSubscriptionPredicateA = new DmiCmNotificationSubscriptionPredicate(['ch-A'] as Set, DatastoreType.PASSTHROUGH_RUNNING, ['/a'] as Set)
+        def dmiCmNotificationSubscriptionPredicateB = new DmiCmNotificationSubscriptionPredicate(['ch-B'] as Set, DatastoreType.PASSTHROUGH_OPERATIONAL, ['/b'] as Set)
+        def dmiCmNotificationSubscriptionPredicateC = new DmiCmNotificationSubscriptionPredicate(['ch-C'] as Set, DatastoreType.PASSTHROUGH_OPERATIONAL, ['/c'] as Set)
+        dmiCmNotificationSubscriptionDetailsMap = ['dmi-1': new DmiCmNotificationSubscriptionDetails([dmiCmNotificationSubscriptionPredicateA], CmNotificationSubscriptionStatus.PENDING),
+                                                   'dmi-2': new DmiCmNotificationSubscriptionDetails([dmiCmNotificationSubscriptionPredicateB], CmNotificationSubscriptionStatus.ACCEPTED),
+                                                   'dmi-3': new DmiCmNotificationSubscriptionDetails([dmiCmNotificationSubscriptionPredicateC], CmNotificationSubscriptionStatus.REJECTED)
+        ]
+    }
+
+    def 'Check for Cm Notification Subscription Outgoing event mapping'() {
+        when: 'we try to map the event to send it to client'
+            def result = objectUnderTest.toCmNotificationSubscriptionNcmpOutEvent('test-subscription', dmiCmNotificationSubscriptionDetailsMap)
+        then: 'event is mapped correctly for the subscription'
+            result.data.subscriptionId == 'test-subscription'
+        and: 'the cm handle ids are part of correct list'
+            result.data.pendingTargets == ['ch-A']
+            result.data.acceptedTargets == ['ch-B']
+            result.data.rejectedTargets == ['ch-C']
+    }
+}