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>

1 files changed, 96 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 0000000000..668f4517e8
--- /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;
+    }
+
+}