Merge "Conflicting Error code"

16 files changed, 182 insertions, 190 deletions

diff --git a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryController.java b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryController.java
index 87f9d835a1..cd61c5a4a5 100755
--- a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryController.java
+++ b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryController.java
@@ -126,7 +126,7 @@ public class NetworkCmProxyInventoryController implements NetworkCmProxyInventor
         final CmHandleRegistrationResponse registrationResponse) {
         return new CmHandlerRegistrationErrorResponse()
             .cmHandle(registrationResponse.getCmHandle())
-            .errorCode(registrationResponse.getRegistrationError().errorCode)
+            .errorCode(registrationResponse.getNcmpResponseStatus().getCode())
             .errorText(registrationResponse.getErrorText());
     }
 
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryControllerSpec.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryControllerSpec.groovy
index e755094dd2..1d03be107d 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryControllerSpec.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyInventoryControllerSpec.groovy
@@ -219,14 +219,14 @@ class NetworkCmProxyInventoryControllerSpec extends Specification {
             responseBody.getFailedUpdatedCmHandles() == expectedFailedUpdateCmHandle
             responseBody.getFailedRemovedCmHandles() == expectedFailedRemovedCmHandle
         where:
-            scenario               | createCmHandleResponse         | updateCmHandleResponse         | removeCmHandleResponse         || expectedFailedCreatedCmHandle       | expectedFailedUpdateCmHandle        | expectedFailedRemovedCmHandle
-            'only create failed'   | failedResponse('cm-handle-1')  | successResponse('cm-handle-2') | successResponse('cm-handle-3') || [failedRestResponse('cm-handle-1')] | []                                  | []
-            'only update failed'   | successResponse('cm-handle-1') | failedResponse('cm-handle-2')  | successResponse('cm-handle-3') || []                                  | [failedRestResponse('cm-handle-2')] | []
-            'only delete failed'   | successResponse('cm-handle-1') | successResponse('cm-handle-2') | failedResponse('cm-handle-3')  || []                                  | []                                  | [failedRestResponse('cm-handle-3')]
-            'all three failed'     | failedResponse('cm-handle-1')  | failedResponse('cm-handle-2')  | failedResponse('cm-handle-3')  || [failedRestResponse('cm-handle-1')] | [failedRestResponse('cm-handle-2')] | [failedRestResponse('cm-handle-3')]
-            'create update failed' | failedResponse('cm-handle-1')  | failedResponse('cm-handle-2')  | successResponse('cm-handle-3') || [failedRestResponse('cm-handle-1')] | [failedRestResponse('cm-handle-2')] | []
-            'create delete failed' | failedResponse('cm-handle-1')  | successResponse('cm-handle-2') | failedResponse('cm-handle-3')  || [failedRestResponse('cm-handle-1')] | []                                  | [failedRestResponse('cm-handle-3')]
-            'update delete failed' | successResponse('cm-handle-1') | failedResponse('cm-handle-2')  | failedResponse('cm-handle-3')  || []                                  | [failedRestResponse('cm-handle-2')] | [failedRestResponse('cm-handle-3')]
+        scenario               | createCmHandleResponse                 | updateCmHandleResponse                 | removeCmHandleResponse                 || expectedFailedCreatedCmHandle                 | expectedFailedUpdateCmHandle                  | expectedFailedRemovedCmHandle
+        'only create failed'   | expectedFailedResponse('cm-handle-1')  | expectedSuccessResponse('cm-handle-2') | expectedSuccessResponse('cm-handle-3') || [expectedUnknownErrorResponse('cm-handle-1')] | []                                            | []
+        'only update failed'   | expectedSuccessResponse('cm-handle-1') | expectedFailedResponse('cm-handle-2')  | expectedSuccessResponse('cm-handle-3') || []                                            | [expectedUnknownErrorResponse('cm-handle-2')] | []
+        'only delete failed'   | expectedSuccessResponse('cm-handle-1') | expectedSuccessResponse('cm-handle-2') | expectedFailedResponse('cm-handle-3')  || []                                            | []                                            | [expectedUnknownErrorResponse('cm-handle-3')]
+        'all three failed'     | expectedFailedResponse('cm-handle-1')  | expectedFailedResponse('cm-handle-2')  | expectedFailedResponse('cm-handle-3')  || [expectedUnknownErrorResponse('cm-handle-1')] | [expectedUnknownErrorResponse('cm-handle-2')] | [expectedUnknownErrorResponse('cm-handle-3')]
+        'create update failed' | expectedFailedResponse('cm-handle-1')  | expectedFailedResponse('cm-handle-2')  | expectedSuccessResponse('cm-handle-3') || [expectedUnknownErrorResponse('cm-handle-1')] | [expectedUnknownErrorResponse('cm-handle-2')] | []
+        'create delete failed' | expectedFailedResponse('cm-handle-1')  | expectedSuccessResponse('cm-handle-2') | expectedFailedResponse('cm-handle-3')  || [expectedUnknownErrorResponse('cm-handle-1')] | []                                            | [expectedUnknownErrorResponse('cm-handle-3')]
+        'update delete failed' | expectedSuccessResponse('cm-handle-1') | expectedFailedResponse('cm-handle-2')  | expectedFailedResponse('cm-handle-3')  || []                                            | [expectedUnknownErrorResponse('cm-handle-2')] | [expectedUnknownErrorResponse('cm-handle-3')]
     }
 
     def 'Get all cm handle IDs by DMI plugin identifier.'() {
@@ -246,15 +246,15 @@ class NetworkCmProxyInventoryControllerSpec extends Specification {
             assert response.contentAsString.contains('cm-handle-id-2')
     }
 
-    def failedRestResponse(cmHandle) {
-        return new CmHandlerRegistrationErrorResponse('cmHandle': cmHandle, 'errorCode': '00', 'errorText': 'Failed')
+    def expectedUnknownErrorResponse(cmHandle) {
+        return new CmHandlerRegistrationErrorResponse('cmHandle': cmHandle, 'errorCode': '108', 'errorText': 'Failed')
     }
 
-    def failedResponse(cmHandle) {
+    def expectedFailedResponse(cmHandle) {
         return CmHandleRegistrationResponse.createFailureResponse(cmHandle, new RuntimeException('Failed'))
     }
 
-    def successResponse(cmHandle) {
+    def expectedSuccessResponse(cmHandle) {
         return CmHandleRegistrationResponse.createSuccessResponse(cmHandle)
     }
 
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NcmpEventResponseCode.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NcmpResponseStatus.java
index 3b11249838..b9c834c559 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NcmpEventResponseCode.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NcmpResponseStatus.java
@@ -23,7 +23,7 @@ package org.onap.cps.ncmp.api;
 import lombok.Getter;
 
 @Getter
-public enum NcmpEventResponseCode {
+public enum NcmpResponseStatus {
 
     SUCCESS("0", "Successfully applied changes"),
     SUCCESSFULLY_APPLIED_SUBSCRIPTION("1", "successfully applied subscription"),
@@ -33,13 +33,16 @@ public enum NcmpEventResponseCode {
     UNABLE_TO_READ_RESOURCE_DATA("103", "dmi plugin service is not able to read resource data"),
     PARTIALLY_APPLIED_SUBSCRIPTION("104", "partially applied subscription"),
     SUBSCRIPTION_NOT_APPLICABLE("105", "subscription not applicable for all cm handles"),
-    SUBSCRIPTION_PENDING("106", "subscription pending for all cm handles");
+    SUBSCRIPTION_PENDING("106", "subscription pending for all cm handles"),
+    UNKNOWN_ERROR("108", "Unknown error"),
+    CM_HANDLE_ALREADY_EXIST("109", "cm-handle already exists"),
+    CM_HANDLE_INVALID_ID("110", "cm-handle has an invalid character(s) in id");
 
-    private final String statusCode;
-    private final String statusMessage;
+    private final String code;
+    private final String message;
 
-    NcmpEventResponseCode(final String statusCode, final String statusMessage) {
-        this.statusCode = statusCode;
-        this.statusMessage = statusMessage;
+    NcmpResponseStatus(final String code, final String message) {
+        this.code = code;
+        this.message = message;
     }
 }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
index f8adde85ff..d34e2a3141 100755
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImpl.java
@@ -24,6 +24,9 @@
 
 package org.onap.cps.ncmp.api.impl;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_ALREADY_EXIST;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID;
 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_PARENT;
 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME;
 import static org.onap.cps.ncmp.api.impl.utils.RestQueryParametersValidator.validateCmHandleQueryParameters;
@@ -61,7 +64,6 @@ import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
 import org.onap.cps.ncmp.api.models.CmHandleQueryApiParameters;
 import org.onap.cps.ncmp.api.models.CmHandleQueryServiceParameters;
 import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse;
-import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError;
 import org.onap.cps.ncmp.api.models.DataOperationRequest;
 import org.onap.cps.ncmp.api.models.DmiPluginRegistration;
 import org.onap.cps.ncmp.api.models.DmiPluginRegistrationResponse;
@@ -356,13 +358,11 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         } catch (final DataNodeNotFoundException dataNodeNotFoundException) {
             log.error("Unable to find dataNode for cmHandleId : {} , caused by : {}",
                 cmHandleId, dataNodeNotFoundException.getMessage());
-            return CmHandleRegistrationResponse.createFailureResponse(cmHandleId,
-                RegistrationError.CM_HANDLE_DOES_NOT_EXIST);
+            return CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLES_NOT_FOUND);
         } catch (final DataValidationException dataValidationException) {
             log.error("Unable to de-register cm-handle id: {}, caused by: {}",
                 cmHandleId, dataValidationException.getMessage());
-            return CmHandleRegistrationResponse.createFailureResponse(cmHandleId,
-                RegistrationError.CM_HANDLE_INVALID_ID);
+            return CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLE_INVALID_ID);
         } catch (final Exception exception) {
             log.error("Unable to de-register cm-handle id : {} , caused by : {}", cmHandleId, exception.getMessage());
             return CmHandleRegistrationResponse.createFailureResponse(cmHandleId, exception);
@@ -405,14 +405,14 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     private List<CmHandleRegistrationResponse> registerNewCmHandles(final Map<YangModelCmHandle, CmHandleState>
                                                                             cmHandleStatePerCmHandle) {
         final List<String> cmHandleIds = cmHandleStatePerCmHandle.keySet().stream().map(YangModelCmHandle::getId)
-                .collect(Collectors.toList());
+                .toList();
         try {
             lcmEventsCmHandleStateHandler.updateCmHandleStateBatch(cmHandleStatePerCmHandle);
             return CmHandleRegistrationResponse.createSuccessResponses(cmHandleIds);
         } catch (final AlreadyDefinedException alreadyDefinedException) {
             return CmHandleRegistrationResponse.createFailureResponses(
                     alreadyDefinedException.getAlreadyDefinedObjectNames(),
-                    RegistrationError.CM_HANDLE_ALREADY_EXIST);
+                    CM_HANDLE_ALREADY_EXIST);
         } catch (final Exception exception) {
             return CmHandleRegistrationResponse.createFailureResponses(cmHandleIds, exception);
         }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandler.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandler.java
index 2f61b228b3..401b190360 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandler.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandler.java
@@ -22,6 +22,8 @@
 
 package org.onap.cps.ncmp.api.impl;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID;
 import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.DMI_PROPERTY;
 import static org.onap.cps.ncmp.api.impl.NetworkCmProxyDataServicePropertyHandler.PropertyType.PUBLIC_PROPERTY;
 
@@ -38,7 +40,6 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
 import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse;
-import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError;
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
 import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
 import org.onap.cps.spi.exceptions.DataValidationException;
@@ -75,13 +76,12 @@ public class NetworkCmProxyDataServicePropertyHandler {
                 log.error("Unable to find dataNode for cmHandleId : {} , caused by : {}",
                     cmHandleId, e.getMessage());
                 cmHandleRegistrationResponses.add(CmHandleRegistrationResponse
-                    .createFailureResponse(cmHandleId, RegistrationError.CM_HANDLE_DOES_NOT_EXIST));
+                    .createFailureResponse(cmHandleId, CM_HANDLES_NOT_FOUND));
             } catch (final DataValidationException e) {
                 log.error("Unable to update cm handle : {}, caused by : {}",
                     cmHandleId, e.getMessage());
                 cmHandleRegistrationResponses.add(
-                    CmHandleRegistrationResponse.createFailureResponse(cmHandleId,
-                        RegistrationError.CM_HANDLE_INVALID_ID));
+                    CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLE_INVALID_ID));
             } catch (final Exception exception) {
                 log.error("Unable to update cmHandle : {} , caused by : {}",
                     cmHandleId, exception.getMessage());
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisher.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisher.java
index 473538c93e..a0fd81c12a 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisher.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisher.java
@@ -20,13 +20,20 @@
 
 package org.onap.cps.ncmp.api.impl.events.cmsubscription;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.PARTIALLY_APPLIED_SUBSCRIPTION;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUBSCRIPTION_NOT_APPLICABLE;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUBSCRIPTION_PENDING;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUCCESSFULLY_APPLIED_SUBSCRIPTION;
+import static org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus.ACCEPTED;
+import static org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus.PENDING;
+import static org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus.REJECTED;
+
 import io.cloudevents.CloudEvent;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.onap.cps.ncmp.api.NcmpEventResponseCode;
+import org.onap.cps.ncmp.api.NcmpResponseStatus;
 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence;
 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionStatus;
@@ -100,48 +107,39 @@ public class CmSubscriptionNcmpOutEventPublisher {
                     cmSubscriptionStatus.setStatus(SubscriptionStatus.fromString(status));
                     cmSubscriptionStatus.setDetails(details);
                     return cmSubscriptionStatus;
-                }).collect(Collectors.toList());
+                }).toList();
     }
 
-    private NcmpEventResponseCode decideOnNcmpEventResponseCodeForSubscription(
+    private NcmpResponseStatus decideOnNcmpEventResponseCodeForSubscription(
             final Map<String, Map<String, String>> cmHandleIdToStatusAndDetailsAsMap) {
 
-        final boolean isAllTargetsPending = isAllTargetCmHandleStatusMatch(cmHandleIdToStatusAndDetailsAsMap,
-                SubscriptionStatus.PENDING);
-
-        final boolean isAllTargetsRejected = isAllTargetCmHandleStatusMatch(cmHandleIdToStatusAndDetailsAsMap,
-                SubscriptionStatus.REJECTED);
-
-        final boolean isAllTargetsAccepted = isAllTargetCmHandleStatusMatch(cmHandleIdToStatusAndDetailsAsMap,
-                SubscriptionStatus.ACCEPTED);
-
-        if (isAllTargetsAccepted) {
-            return NcmpEventResponseCode.SUCCESSFULLY_APPLIED_SUBSCRIPTION;
-        } else if (isAllTargetsRejected) {
-            return NcmpEventResponseCode.SUBSCRIPTION_NOT_APPLICABLE;
-        } else if (isAllTargetsPending) {
-            return NcmpEventResponseCode.SUBSCRIPTION_PENDING;
-        } else {
-            return NcmpEventResponseCode.PARTIALLY_APPLIED_SUBSCRIPTION;
+        if (allTargetsHaveStatus(cmHandleIdToStatusAndDetailsAsMap, ACCEPTED)) {
+            return SUCCESSFULLY_APPLIED_SUBSCRIPTION;
+        }
+        if (allTargetsHaveStatus(cmHandleIdToStatusAndDetailsAsMap, REJECTED)) {
+            return SUBSCRIPTION_NOT_APPLICABLE;
+        }
+        if (allTargetsHaveStatus(cmHandleIdToStatusAndDetailsAsMap, PENDING)) {
+            return SUBSCRIPTION_PENDING;
         }
+        return PARTIALLY_APPLIED_SUBSCRIPTION;
     }
 
-    private boolean isAllTargetCmHandleStatusMatch(
-            final Map<String, Map<String, String>> cmHandleIdToStatusAndDetailsAsMap,
-            final SubscriptionStatus subscriptionStatus) {
+    private boolean allTargetsHaveStatus(final Map<String, Map<String, String>> cmHandleIdToStatusAndDetailsAsMap,
+                                         final SubscriptionStatus subscriptionStatus) {
         return cmHandleIdToStatusAndDetailsAsMap.values().stream()
                 .allMatch(entryset -> entryset.containsValue(subscriptionStatus.toString()));
     }
 
     private CmSubscriptionNcmpOutEvent fromCmSubscriptionEvent(
             final CmSubscriptionEvent cmSubscriptionEvent,
-            final NcmpEventResponseCode ncmpEventResponseCode) {
+            final NcmpResponseStatus ncmpResponseStatus) {
 
         final CmSubscriptionNcmpOutEvent cmSubscriptionNcmpOutEvent =
                 cmSubscriptionEventToCmSubscriptionNcmpOutEventMapper.toCmSubscriptionNcmpOutEvent(
                         cmSubscriptionEvent);
-        cmSubscriptionNcmpOutEvent.getData().setStatusCode(Integer.parseInt(ncmpEventResponseCode.getStatusCode()));
-        cmSubscriptionNcmpOutEvent.getData().setStatusMessage(ncmpEventResponseCode.getStatusMessage());
+        cmSubscriptionNcmpOutEvent.getData().setStatusCode(Integer.parseInt(ncmpResponseStatus.getCode()));
+        cmSubscriptionNcmpOutEvent.getData().setStatusMessage(ncmpResponseStatus.getMessage());
 
         return cmSubscriptionNcmpOutEvent;
     }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/operations/DmiDataOperations.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/operations/DmiDataOperations.java
index 8f76a45e0e..b8edeccf2e 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/operations/DmiDataOperations.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/operations/DmiDataOperations.java
@@ -21,6 +21,8 @@
 
 package org.onap.cps.ncmp.api.impl.operations;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.DMI_SERVICE_NOT_RESPONDING;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNABLE_TO_READ_RESOURCE_DATA;
 import static org.onap.cps.ncmp.api.impl.operations.DatastoreType.PASSTHROUGH_RUNNING;
 import static org.onap.cps.ncmp.api.impl.operations.OperationType.READ;
 
@@ -30,7 +32,7 @@ import java.util.Map;
 import java.util.Set;
 import java.util.stream.Collectors;
 import lombok.extern.slf4j.Slf4j;
-import org.onap.cps.ncmp.api.NcmpEventResponseCode;
+import org.onap.cps.ncmp.api.NcmpResponseStatus;
 import org.onap.cps.ncmp.api.impl.client.DmiRestClient;
 import org.onap.cps.ncmp.api.impl.config.NcmpConfiguration;
 import org.onap.cps.ncmp.api.impl.exception.HttpClientRequestException;
@@ -230,9 +232,7 @@ public class DmiDataOperations extends DmiOperations {
                                                                  final Map<String, List<DmiDataOperation>>
                                                                 groupsOutPerDmiServiceName) {
 
-        groupsOutPerDmiServiceName.entrySet().forEach(groupsOutPerDmiServiceNameEntry -> {
-            final String dmiServiceName = groupsOutPerDmiServiceNameEntry.getKey();
-            final List<DmiDataOperation> dmiDataOperationRequestBodies = groupsOutPerDmiServiceNameEntry.getValue();
+        groupsOutPerDmiServiceName.forEach((dmiServiceName, dmiDataOperationRequestBodies) -> {
             final String dmiDataOperationResourceUrl =
                     getDmiServiceDataOperationRequestUrl(dmiServiceName, topicParamInQuery, requestId);
             sendDataOperationRequestToDmiService(dmiDataOperationResourceUrl, dmiDataOperationRequestBodies);
@@ -261,18 +261,18 @@ public class DmiDataOperations extends DmiOperations {
             final String topicName = dataOperationResourceUrlParameters.get("topic").get(0);
             final String requestId = dataOperationResourceUrlParameters.get("requestId").get(0);
 
-            final MultiValueMap<DmiDataOperation, Map<NcmpEventResponseCode, List<String>>>
+            final MultiValueMap<DmiDataOperation, Map<NcmpResponseStatus, List<String>>>
                     cmHandleIdsPerResponseCodesPerOperation = new LinkedMultiValueMap<>();
 
             dmiDataOperationRequestBodies.forEach(dmiDataOperationRequestBody -> {
                 final List<String> cmHandleIds = dmiDataOperationRequestBody.getCmHandles().stream()
-                        .map(CmHandle::getId).collect(Collectors.toList());
+                        .map(CmHandle::getId).toList();
                 if (throwable.getCause() instanceof HttpClientRequestException) {
                     cmHandleIdsPerResponseCodesPerOperation.add(dmiDataOperationRequestBody,
-                            Map.of(NcmpEventResponseCode.UNABLE_TO_READ_RESOURCE_DATA, cmHandleIds));
+                            Map.of(UNABLE_TO_READ_RESOURCE_DATA, cmHandleIds));
                 } else {
                     cmHandleIdsPerResponseCodesPerOperation.add(dmiDataOperationRequestBody,
-                            Map.of(NcmpEventResponseCode.DMI_SERVICE_NOT_RESPONDING, cmHandleIds));
+                            Map.of(DMI_SERVICE_NOT_RESPONDING, cmHandleIds));
                 }
             });
             ResourceDataOperationRequestUtils.publishErrorMessageToClientTopic(topicName, requestId,
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/DataOperationEventCreator.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/DataOperationEventCreator.java
index 65cda94787..61da706c59 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/DataOperationEventCreator.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/DataOperationEventCreator.java
@@ -28,7 +28,7 @@ import java.util.Map;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.onap.cps.ncmp.api.NcmpEventResponseCode;
+import org.onap.cps.ncmp.api.NcmpResponseStatus;
 import org.onap.cps.ncmp.api.impl.events.NcmpCloudEventBuilder;
 import org.onap.cps.ncmp.api.impl.operations.DmiDataOperation;
 import org.onap.cps.ncmp.events.async1_0_0.Data;
@@ -51,7 +51,7 @@ public class DataOperationEventCreator {
     public static CloudEvent createDataOperationEvent(final String clientTopic,
                                                       final String requestId,
                                                       final MultiValueMap<DmiDataOperation,
-                                                              Map<NcmpEventResponseCode, List<String>>>
+                                                              Map<NcmpResponseStatus, List<String>>>
                                                               cmHandleIdsPerResponseCodesPerOperation) {
         final DataOperationEvent dataOperationEvent = new DataOperationEvent();
         final Data data = createPayloadFromDataOperationResponses(cmHandleIdsPerResponseCodesPerOperation);
@@ -62,7 +62,7 @@ public class DataOperationEventCreator {
     }
 
     private static Data createPayloadFromDataOperationResponses(final MultiValueMap<DmiDataOperation,
-            Map<NcmpEventResponseCode, List<String>>> cmHandleIdsPerResponseCodesPerOperation) {
+            Map<NcmpResponseStatus, List<String>>> cmHandleIdsPerResponseCodesPerOperation) {
         final Data data = new Data();
         final List<org.onap.cps.ncmp.events.async1_0_0.Response> responses = new ArrayList<>();
         cmHandleIdsPerResponseCodesPerOperation.forEach((dmiDataOperation, cmHandleIdsPerResponseCodes) ->
@@ -75,13 +75,13 @@ public class DataOperationEventCreator {
 
     private static List<Response> createResponseFromDataOperationResponses(
             final DmiDataOperation dmiDataOperation,
-            final Map<NcmpEventResponseCode, List<String>> cmHandleIdsPerResponseCodeEntries) {
+            final Map<NcmpResponseStatus, List<String>> cmHandleIdsPerResponseCodeEntries) {
         final List<org.onap.cps.ncmp.events.async1_0_0.Response> responses = new ArrayList<>();
         cmHandleIdsPerResponseCodeEntries.forEach((ncmpEventResponseCode, cmHandleIds) -> {
             final Response response = new Response();
             response.setOperationId(dmiDataOperation.getOperationId());
-            response.setStatusCode(ncmpEventResponseCode.getStatusCode());
-            response.setStatusMessage(ncmpEventResponseCode.getStatusMessage());
+            response.setStatusCode(ncmpEventResponseCode.getCode());
+            response.setStatusMessage(ncmpEventResponseCode.getMessage());
             response.setIds(cmHandleIds);
             response.setResourceIdentifier(dmiDataOperation.getResourceIdentifier());
             response.setOptions(dmiDataOperation.getOptions());
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/ResourceDataOperationRequestUtils.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/ResourceDataOperationRequestUtils.java
index e95d4f4c78..e78f0901fe 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/ResourceDataOperationRequestUtils.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/utils/data/operation/ResourceDataOperationRequestUtils.java
@@ -20,6 +20,9 @@
 
 package org.onap.cps.ncmp.api.impl.utils.data.operation;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND;
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_READY;
+
 import io.cloudevents.CloudEvent;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -32,7 +35,7 @@ import java.util.stream.Collectors;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.onap.cps.ncmp.api.NcmpEventResponseCode;
+import org.onap.cps.ncmp.api.NcmpResponseStatus;
 import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
 import org.onap.cps.ncmp.api.impl.inventory.CmHandleState;
 import org.onap.cps.ncmp.api.impl.operations.CmHandle;
@@ -68,7 +71,7 @@ public class ResourceDataOperationRequestUtils {
             final Collection<YangModelCmHandle> yangModelCmHandles) {
 
         final Map<String, List<DmiDataOperation>> dmiDataOperationsOutPerDmiServiceName = new HashMap<>();
-        final MultiValueMap<DmiDataOperation, Map<NcmpEventResponseCode,
+        final MultiValueMap<DmiDataOperation, Map<NcmpResponseStatus,
                 List<String>>> cmHandleIdsPerResponseCodesPerOperation = new LinkedMultiValueMap<>();
         final Set<String> nonReadyCmHandleIdsLookup = filterAndGetNonReadyCmHandleIds(yangModelCmHandles);
 
@@ -102,10 +105,10 @@ public class ResourceDataOperationRequestUtils {
             }
             populateCmHandleIdsPerOperationIdPerResponseCode(cmHandleIdsPerResponseCodesPerOperation,
                     DmiDataOperation.buildDmiDataOperationRequestBodyWithoutCmHandles(dataOperationDefinitionIn),
-                    NcmpEventResponseCode.CM_HANDLES_NOT_FOUND, nonExistingCmHandleIds);
+                    CM_HANDLES_NOT_FOUND, nonExistingCmHandleIds);
             populateCmHandleIdsPerOperationIdPerResponseCode(cmHandleIdsPerResponseCodesPerOperation,
                     DmiDataOperation.buildDmiDataOperationRequestBodyWithoutCmHandles(dataOperationDefinitionIn),
-                    NcmpEventResponseCode.CM_HANDLES_NOT_READY, nonReadyCmHandleIds);
+                    CM_HANDLES_NOT_READY, nonReadyCmHandleIds);
         }
         if (!cmHandleIdsPerResponseCodesPerOperation.isEmpty()) {
             publishErrorMessageToClientTopic(topicParamInQuery, requestId, cmHandleIdsPerResponseCodesPerOperation);
@@ -124,7 +127,7 @@ public class ResourceDataOperationRequestUtils {
     public static void publishErrorMessageToClientTopic(final String clientTopic,
                                                          final String requestId,
                                                          final MultiValueMap<DmiDataOperation,
-                                                                 Map<NcmpEventResponseCode, List<String>>>
+                                                                 Map<NcmpResponseStatus, List<String>>>
                                                                     cmHandleIdsPerResponseCodesPerOperation) {
         final CloudEvent dataOperationCloudEvent = DataOperationEventCreator.createDataOperationEvent(clientTopic,
                 requestId, cmHandleIdsPerResponseCodesPerOperation);
@@ -175,13 +178,13 @@ public class ResourceDataOperationRequestUtils {
     }
 
     private static void populateCmHandleIdsPerOperationIdPerResponseCode(final MultiValueMap<DmiDataOperation,
-            Map<NcmpEventResponseCode, List<String>>> cmHandleIdsPerResponseCodesPerOperation,
+            Map<NcmpResponseStatus, List<String>>> cmHandleIdsPerResponseCodesPerOperation,
                                                                         final DmiDataOperation dmiDataOperation,
-                                                                        final NcmpEventResponseCode
-                                                                                ncmpEventResponseCode,
+                                                                        final NcmpResponseStatus
+                                                                                 ncmpResponseStatus,
                                                                         final List<String> cmHandleIds) {
         if (!cmHandleIds.isEmpty()) {
-            cmHandleIdsPerResponseCodesPerOperation.add(dmiDataOperation, Map.of(ncmpEventResponseCode, cmHandleIds));
+            cmHandleIdsPerResponseCodesPerOperation.add(dmiDataOperation, Map.of(ncmpResponseStatus, cmHandleIds));
         }
     }
 }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponse.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponse.java
index d5b27b61f6..5bab51bc27 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponse.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponse.java
@@ -1,7 +1,7 @@
 /*
  *  ============LICENSE_START=======================================================
  *  Copyright (C) 2022 Bell Canada
- *  Modifications Copyright (C) 2022 Nordix Foundation
+ *  Modifications 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.
@@ -21,16 +21,17 @@
 
 package org.onap.cps.ncmp.api.models;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNKNOWN_ERROR;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-import java.util.stream.Collectors;
 import lombok.Builder;
 import lombok.Data;
-import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.onap.cps.ncmp.api.NcmpResponseStatus;
 
 @Data
 @Builder
@@ -39,7 +40,7 @@ public class CmHandleRegistrationResponse {
 
     private final String cmHandle;
     private final Status status;
-    private RegistrationError registrationError;
+    private NcmpResponseStatus ncmpResponseStatus;
     private String errorText;
 
     private static final Pattern cmHandleIdInXpathPattern = Pattern.compile("\\[@id='(.*?)']");
@@ -56,7 +57,7 @@ public class CmHandleRegistrationResponse {
         return CmHandleRegistrationResponse.builder()
             .cmHandle(cmHandleId)
             .status(Status.FAILURE)
-            .registrationError(RegistrationError.UNKNOWN_ERROR)
+            .ncmpResponseStatus(UNKNOWN_ERROR)
             .errorText(exception.getMessage()).build();
     }
 
@@ -64,15 +65,15 @@ public class CmHandleRegistrationResponse {
      * Creates a failure response based on registration error.
      *
      * @param cmHandleId          cmHandleId
-     * @param registrationError registrationError
+     * @param ncmpResponseStatus registration error code and status
      * @return CmHandleRegistrationResponse
      */
     public static CmHandleRegistrationResponse createFailureResponse(final String cmHandleId,
-        final RegistrationError registrationError) {
+        final NcmpResponseStatus ncmpResponseStatus) {
         return CmHandleRegistrationResponse.builder().cmHandle(cmHandleId)
             .status(Status.FAILURE)
-            .registrationError(registrationError)
-            .errorText(registrationError.errorText)
+            .ncmpResponseStatus(ncmpResponseStatus)
+            .errorText(ncmpResponseStatus.getMessage())
             .build();
     }
 
@@ -80,17 +81,17 @@ public class CmHandleRegistrationResponse {
      * Creates a failure response based on registration error.
      *
      * @param failedXpaths       list of failed Xpaths
-     * @param registrationError enum describing the type of registration error
+     * @param ncmpResponseStatus enum describing the type of registration error
      * @return CmHandleRegistrationResponse
      */
     public static List<CmHandleRegistrationResponse> createFailureResponses(final Collection<String> failedXpaths,
-            final RegistrationError registrationError) {
+            final NcmpResponseStatus ncmpResponseStatus) {
         final List<CmHandleRegistrationResponse> cmHandleRegistrationResponses = new ArrayList<>(failedXpaths.size());
         for (final String xpath : failedXpaths) {
             final Matcher matcher = cmHandleIdInXpathPattern.matcher(xpath);
             if (matcher.find()) {
                 cmHandleRegistrationResponses.add(
-                    CmHandleRegistrationResponse.createFailureResponse(matcher.group(1), registrationError));
+                    CmHandleRegistrationResponse.createFailureResponse(matcher.group(1), ncmpResponseStatus));
             } else {
                 log.warn("Unexpected xpath {}", xpath);
             }
@@ -109,7 +110,7 @@ public class CmHandleRegistrationResponse {
             final Exception exception) {
         return cmHandleIds.stream()
                 .map(cmHandleId -> CmHandleRegistrationResponse.createFailureResponse(cmHandleId, exception))
-                .collect(Collectors.toList());
+                .toList();
     }
 
     public static CmHandleRegistrationResponse createSuccessResponse(final String cmHandle) {
@@ -118,23 +119,10 @@ public class CmHandleRegistrationResponse {
     }
 
     public static List<CmHandleRegistrationResponse> createSuccessResponses(final List<String> cmHandleIds) {
-        return cmHandleIds.stream().map(CmHandleRegistrationResponse::createSuccessResponse)
-                .collect(Collectors.toList());
+        return cmHandleIds.stream().map(CmHandleRegistrationResponse::createSuccessResponse).toList();
     }
 
     public enum Status {
         SUCCESS, FAILURE;
     }
-
-    @RequiredArgsConstructor
-    public enum RegistrationError {
-        UNKNOWN_ERROR("00", "Unknown error"),
-        CM_HANDLE_ALREADY_EXIST("01", "cm-handle already exists"),
-        CM_HANDLE_DOES_NOT_EXIST("02", "cm-handle does not exist"),
-        CM_HANDLE_INVALID_ID("03", "cm-handle has an invalid character(s) in id");
-
-        public final String errorCode;
-        public final String errorText;
-
-    }
 }
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplRegistrationSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplRegistrationSpec.groovy
index 46666b941f..941139c0b6 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplRegistrationSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplRegistrationSpec.groovy
@@ -21,6 +21,12 @@
 
 package org.onap.cps.ncmp.api.impl
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_ALREADY_EXIST
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNKNOWN_ERROR
+import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.Status
+
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.hazelcast.map.IMap
 import org.onap.cps.api.CpsDataService
@@ -45,12 +51,6 @@ import org.onap.cps.utils.JsonObjectMapper
 import spock.lang.Shared
 import spock.lang.Specification
 
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.CM_HANDLE_DOES_NOT_EXIST
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.CM_HANDLE_ALREADY_EXIST
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.CM_HANDLE_INVALID_ID
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.UNKNOWN_ERROR
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.Status
-
 class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
 
     @Shared
@@ -203,7 +203,7 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
             response.createdCmHandles.each {
                 assert it.cmHandle == 'cmhandle2'
                 assert it.status == Status.FAILURE
-                assert it.registrationError == CM_HANDLE_ALREADY_EXIST
+                assert it.ncmpResponseStatus == CM_HANDLE_ALREADY_EXIST
                 assert it.errorText == 'cm-handle already exists'
             }
     }
@@ -221,7 +221,7 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
             with(response.createdCmHandles[0]) {
                 assert it.status == Status.FAILURE
                 assert it.cmHandle ==  'cmhandle'
-                assert it.registrationError == expectedError
+                assert it.ncmpResponseStatus == expectedError
                 assert it.errorText == expectedErrorText
             }
         where:
@@ -236,7 +236,7 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
         and: 'cm-handle updates can be processed successfully'
             def updateOperationResponse = [CmHandleRegistrationResponse.createSuccessResponse('cm-handle-1'),
                                            CmHandleRegistrationResponse.createFailureResponse('cm-handle-2', new Exception("Failed")),
-                                           CmHandleRegistrationResponse.createFailureResponse('cm-handle-3', CM_HANDLE_DOES_NOT_EXIST),
+                                           CmHandleRegistrationResponse.createFailureResponse('cm-handle-3', CM_HANDLES_NOT_FOUND),
                                            CmHandleRegistrationResponse.createFailureResponse('cm handle 4', CM_HANDLE_INVALID_ID)]
             mockNetworkCmProxyDataServicePropertyHandler.updateCmHandleProperties(_) >> updateOperationResponse
         when: 'registration is updated'
@@ -310,7 +310,7 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
         and: '2nd cm-handle deletion fails'
             with(response.removedCmHandles[1]) {
                 assert it.status == Status.FAILURE
-                assert it.registrationError == UNKNOWN_ERROR
+                assert it.ncmpResponseStatus == UNKNOWN_ERROR
                 assert it.errorText == 'Failed'
                 assert it.cmHandle == 'cmhandle2'
             }
@@ -344,7 +344,7 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
                 assert it.status == Status.FAILURE
                 assert it.cmHandle == 'cmhandle'
                 assert it.errorText == 'Failed'
-                assert it.registrationError == UNKNOWN_ERROR
+                assert it.ncmpResponseStatus == UNKNOWN_ERROR
             }
     }
 
@@ -364,16 +364,16 @@ class NetworkCmProxyDataServiceImplRegistrationSpec extends Specification {
             with(response.removedCmHandles[0]) {
                 assert it.status == Status.FAILURE
                 assert it.cmHandle == 'cmhandle'
-                assert it.registrationError == expectedError
+                assert it.ncmpResponseStatus == expectedError
                 assert it.errorText == expectedErrorText
             }
         and: 'the cm handle state is not updated to "DELETED"'
             0 * mockLcmEventsCmHandleStateHandler.updateCmHandleStateBatch(_, CmHandleState.DELETED)
         where:
-            scenario                     | cmHandleId             | deleteListElementException                ||  expectedError           | expectedErrorText
-            'cm-handle does not exist'   | 'cmhandle'             | new DataNodeNotFoundException('', '', '') || CM_HANDLE_DOES_NOT_EXIST | 'cm-handle does not exist'
-            'cm-handle has invalid name' | 'cm handle with space' | new DataValidationException('', '')       || CM_HANDLE_INVALID_ID     | 'cm-handle has an invalid character(s) in id'
-            'an unexpected exception'    | 'cmhandle'             | new RuntimeException('Failed')            || UNKNOWN_ERROR            | 'Failed'
+        scenario                     | cmHandleId             | deleteListElementException                || expectedError        | expectedErrorText
+        'cm-handle does not exist'   | 'cmhandle'             | new DataNodeNotFoundException('', '', '') || CM_HANDLES_NOT_FOUND | 'cm handle id(s) not found'
+        'cm-handle has invalid name' | 'cm handle with space' | new DataValidationException('', '')       || CM_HANDLE_INVALID_ID | 'cm-handle has an invalid character(s) in id'
+        'an unexpected exception'    | 'cmhandle'             | new RuntimeException('Failed')            || UNKNOWN_ERROR        | 'Failed'
     }
 
     def getObjectUnderTest() {
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandlerSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandlerSpec.groovy
index 610400f75b..6439f0b58a 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandlerSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServicePropertyHandlerSpec.groovy
@@ -24,13 +24,13 @@ package org.onap.cps.ncmp.api.impl
 
 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DATASPACE_NAME
 import static org.onap.cps.ncmp.api.impl.ncmppersistence.NcmpPersistence.NCMP_DMI_REGISTRY_ANCHOR
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLES_NOT_FOUND
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_INVALID_ID
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNKNOWN_ERROR
+import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.Status
 
 import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence
 import org.onap.cps.spi.exceptions.DataValidationException
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.CM_HANDLE_DOES_NOT_EXIST
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.CM_HANDLE_INVALID_ID
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError.UNKNOWN_ERROR
-import static org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.Status
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
 import org.onap.cps.spi.exceptions.DataNodeNotFoundException
 import org.onap.cps.spi.model.DataNode
@@ -131,14 +131,14 @@ class NetworkCmProxyDataServicePropertyHandlerSpec extends Specification {
             with(response.get(0)) {
                 assert it.status == Status.FAILURE
                 assert it.cmHandle == cmHandleId
-                assert it.registrationError == expectedError
+                assert it.ncmpResponseStatus == expectedError
                 assert it.errorText == expectedErrorText
             }
         where:
-            scenario                   | cmHandleId               | exception                                                                                           || expectedError            | expectedErrorText
-            'Cm Handle does not exist' | 'cmHandleId'             | new DataNodeNotFoundException(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR)                                    || CM_HANDLE_DOES_NOT_EXIST | 'cm-handle does not exist'
-            'Unknown'                  | 'cmHandleId'             | new RuntimeException('Failed')                                                                      || UNKNOWN_ERROR            | 'Failed'
-            'Invalid cm handle id'     | 'cmHandleId with spaces' | new DataValidationException('Name Validation Error.', cmHandleId + 'contains an invalid character') || CM_HANDLE_INVALID_ID     | 'cm-handle has an invalid character(s) in id'
+        scenario                   | cmHandleId               | exception                                                                                           || expectedError        | expectedErrorText
+        'Cm Handle does not exist' | 'cmHandleId'             | new DataNodeNotFoundException(NCMP_DATASPACE_NAME, NCMP_DMI_REGISTRY_ANCHOR)                        || CM_HANDLES_NOT_FOUND | 'cm handle id(s) not found'
+        'Unknown'                  | 'cmHandleId'             | new RuntimeException('Failed')                                                                      || UNKNOWN_ERROR        | 'Failed'
+        'Invalid cm handle id'     | 'cmHandleId with spaces' | new DataValidationException('Name Validation Error.', cmHandleId + 'contains an invalid character') || CM_HANDLE_INVALID_ID | 'cm-handle has an invalid character(s) in id'
     }
 
     def 'Multiple update operations in a single request'() {
@@ -166,8 +166,8 @@ class NetworkCmProxyDataServicePropertyHandlerSpec extends Specification {
             with(cmHandleResponseList.get(1)) {
                 assert it.status == Status.FAILURE
                 assert it.cmHandle == cmHandleId
-                assert it.registrationError == CM_HANDLE_DOES_NOT_EXIST
-                assert it.errorText == "cm-handle does not exist"
+                assert it.ncmpResponseStatus == CM_HANDLES_NOT_FOUND
+                assert it.errorText == 'cm handle id(s) not found'
             }
         then: 'the replace list method is called twice'
             2 * mockInventoryPersistence.replaceListContent(cmHandleXpath,_)
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisherSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisherSpec.groovy
index cc14195191..a0567cb4cb 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisherSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/events/cmsubscription/CmSubscriptionNcmpOutEventPublisherSpec.groovy
@@ -20,11 +20,15 @@
 
 package org.onap.cps.ncmp.api.impl.events.cmsubscription
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUCCESSFULLY_APPLIED_SUBSCRIPTION
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUBSCRIPTION_PENDING
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUBSCRIPTION_NOT_APPLICABLE
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.PARTIALLY_APPLIED_SUBSCRIPTION
+
 import com.fasterxml.jackson.databind.ObjectMapper
 import io.cloudevents.CloudEvent
 import io.cloudevents.core.builder.CloudEventBuilder
 import org.mapstruct.factory.Mappers
-import org.onap.cps.ncmp.api.NcmpEventResponseCode
 import org.onap.cps.ncmp.api.impl.events.EventsPublisher
 import org.onap.cps.ncmp.api.impl.subscriptions.SubscriptionPersistence
 import org.onap.cps.ncmp.api.impl.utils.DataNodeBaseSpec
@@ -98,9 +102,9 @@ class CmSubscriptionNcmpOutEventPublisherSpec extends DataNodeBaseSpec {
         then: 'the result will be equal to ncmp out event'
             expectedResult == ncmpOutEvent
         where: 'the following values are used'
-            scenario             | ncmpEventResponseCode                                        || statusMessage                          ||  statusCode
-            'is full outcome'    | NcmpEventResponseCode.SUCCESSFULLY_APPLIED_SUBSCRIPTION      || 'successfully applied subscription'    ||  1
-            'is partial outcome' | NcmpEventResponseCode.PARTIALLY_APPLIED_SUBSCRIPTION         || 'partially applied subscription'       ||  104
+        scenario             | ncmpEventResponseCode             || statusMessage                       || statusCode
+        'is full outcome'    | SUCCESSFULLY_APPLIED_SUBSCRIPTION || 'successfully applied subscription' || 1
+        'is partial outcome' | PARTIALLY_APPLIED_SUBSCRIPTION    || 'partially applied subscription'    || 104
     }
 
     def 'Check cm handle id to status map to see if it is a full outcome response'() {
@@ -109,16 +113,16 @@ class CmSubscriptionNcmpOutEventPublisherSpec extends DataNodeBaseSpec {
         then: 'the result will be as expected'
             response == expectedOutcomeResponseDecision
         where: 'the following values are used'
-            scenario                                          | cmHandleIdToStatusAndDetailsAsMap                                                                                                                                                   || expectedOutcomeResponseDecision
-            'The map contains PENDING status'                 | [CMHandle1: [details:'Subscription forwarded to dmi plugin',status:'PENDING'] as Map] as Map                                                                                        || NcmpEventResponseCode.SUBSCRIPTION_PENDING
-            'The map contains ACCEPTED status'                | [CMHandle1: [details:'',status:'ACCEPTED'] as Map] as Map                                                                                                                           || NcmpEventResponseCode.SUCCESSFULLY_APPLIED_SUBSCRIPTION
-            'The map contains REJECTED status'                | [CMHandle1: [details:'Cm handle does not exist',status:'REJECTED'] as Map] as Map                                                                                                   || NcmpEventResponseCode.SUBSCRIPTION_NOT_APPLICABLE
-            'The map contains PENDING and PENDING statuses'   | [CMHandle1: [details:'Some details',status:'PENDING'] as Map, CMHandle2: [details:'Some details',status:'PENDING'] as Map as Map] as Map                                            || NcmpEventResponseCode.SUBSCRIPTION_PENDING
-            'The map contains ACCEPTED and ACCEPTED statuses' | [CMHandle1: [details:'',status:'ACCEPTED'] as Map, CMHandle2: [details:'',status:'ACCEPTED'] as Map as Map] as Map                                                                  || NcmpEventResponseCode.SUCCESSFULLY_APPLIED_SUBSCRIPTION
-            'The map contains REJECTED and REJECTED statuses' | [CMHandle1: [details:'Reject details',status:'REJECTED'] as Map, CMHandle2: [details:'Reject details',status:'REJECTED'] as Map as Map] as Map                                      || NcmpEventResponseCode.SUBSCRIPTION_NOT_APPLICABLE
-            'The map contains PENDING and ACCEPTED statuses'  | [CMHandle1: [details:'Some details',status:'PENDING'] as Map, CMHandle2: [details:'',status:'ACCEPTED'] as Map as Map] as Map                                                       || NcmpEventResponseCode.PARTIALLY_APPLIED_SUBSCRIPTION
-            'The map contains REJECTED and ACCEPTED statuses' | [CMHandle1: [details:'Cm handle does not exist',status:'REJECTED'] as Map, CMHandle2: [details:'',status:'ACCEPTED'] as Map as Map] as Map                                          || NcmpEventResponseCode.PARTIALLY_APPLIED_SUBSCRIPTION
-            'The map contains PENDING and REJECTED statuses'  | [CMHandle1: [details:'Subscription forwarded to dmi plugin',status:'PENDING'] as Map, CMHandle2: [details:'Cm handle does not exist',status:'REJECTED'] as Map as Map] as Map       || NcmpEventResponseCode.PARTIALLY_APPLIED_SUBSCRIPTION
+        scenario                                          | cmHandleIdToStatusAndDetailsAsMap                                                                                                                                                   || expectedOutcomeResponseDecision
+        'The map contains PENDING status'                 | [CMHandle1: [details: 'Subscription forwarded to dmi plugin', status: 'PENDING'] as Map] as Map                                                                                     || SUBSCRIPTION_PENDING
+        'The map contains ACCEPTED status'                | [CMHandle1: [details: '', status: 'ACCEPTED'] as Map] as Map                                                                                                                        || SUCCESSFULLY_APPLIED_SUBSCRIPTION
+        'The map contains REJECTED status'                | [CMHandle1: [details: 'Cm handle does not exist', status: 'REJECTED'] as Map] as Map                                                                                                || SUBSCRIPTION_NOT_APPLICABLE
+        'The map contains PENDING and PENDING statuses'   | [CMHandle1: [details: 'Some details', status: 'PENDING'] as Map, CMHandle2: [details: 'Some details', status: 'PENDING'] as Map as Map] as Map                                      || SUBSCRIPTION_PENDING
+        'The map contains ACCEPTED and ACCEPTED statuses' | [CMHandle1: [details: '', status: 'ACCEPTED'] as Map, CMHandle2: [details: '', status: 'ACCEPTED'] as Map as Map] as Map                                                            || SUCCESSFULLY_APPLIED_SUBSCRIPTION
+        'The map contains REJECTED and REJECTED statuses' | [CMHandle1: [details: 'Reject details', status: 'REJECTED'] as Map, CMHandle2: [details: 'Reject details', status: 'REJECTED'] as Map as Map] as Map                                || SUBSCRIPTION_NOT_APPLICABLE
+        'The map contains PENDING and ACCEPTED statuses'  | [CMHandle1: [details: 'Some details', status: 'PENDING'] as Map, CMHandle2: [details: '', status: 'ACCEPTED'] as Map as Map] as Map                                                 || PARTIALLY_APPLIED_SUBSCRIPTION
+        'The map contains REJECTED and ACCEPTED statuses' | [CMHandle1: [details: 'Cm handle does not exist', status: 'REJECTED'] as Map, CMHandle2: [details: '', status: 'ACCEPTED'] as Map as Map] as Map                                    || PARTIALLY_APPLIED_SUBSCRIPTION
+        'The map contains PENDING and REJECTED statuses'  | [CMHandle1: [details: 'Subscription forwarded to dmi plugin', status: 'PENDING'] as Map, CMHandle2: [details: 'Cm handle does not exist', status: 'REJECTED'] as Map as Map] as Map || PARTIALLY_APPLIED_SUBSCRIPTION
     }
 
 }
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/operations/DmiDataOperationsSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/operations/DmiDataOperationsSpec.groovy
index 76ef23fe55..39c4fe6ee5 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/operations/DmiDataOperationsSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/operations/DmiDataOperationsSpec.groovy
@@ -21,8 +21,16 @@
 
 package org.onap.cps.ncmp.api.impl.operations
 
+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 static org.onap.cps.ncmp.api.impl.operations.OperationType.CREATE
+import static org.onap.cps.ncmp.api.impl.operations.OperationType.READ
+import static org.onap.cps.ncmp.api.impl.operations.OperationType.UPDATE
+import static org.onap.cps.ncmp.api.impl.events.mapper.CloudEventMapper.toTargetEvent
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNABLE_TO_READ_RESOURCE_DATA
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.DMI_SERVICE_NOT_RESPONDING
+
 import com.fasterxml.jackson.databind.ObjectMapper
-import org.onap.cps.ncmp.api.NcmpEventResponseCode
 import org.onap.cps.ncmp.api.impl.config.NcmpConfiguration
 import org.onap.cps.ncmp.api.impl.events.EventsPublisher
 import org.onap.cps.ncmp.api.impl.exception.HttpClientRequestException
@@ -41,13 +49,6 @@ import org.springframework.http.HttpStatus
 import spock.lang.Shared
 import java.util.concurrent.TimeoutException
 
-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 static org.onap.cps.ncmp.api.impl.operations.OperationType.CREATE
-import static org.onap.cps.ncmp.api.impl.operations.OperationType.READ
-import static org.onap.cps.ncmp.api.impl.operations.OperationType.UPDATE
-import static org.onap.cps.ncmp.api.impl.events.mapper.CloudEventMapper.toTargetEvent
-
 @SpringBootTest
 @ContextConfiguration(classes = [EventsPublisher, CpsApplicationContext, NcmpConfiguration.DmiProperties, DmiDataOperations])
 class DmiDataOperationsSpec extends DmiOperationsBaseSpec {
@@ -128,12 +129,12 @@ class DmiDataOperationsSpec extends DmiOperationsBaseSpec {
             def eventDataValue = extractDataValue(actualDataOperationCloudEvent)
             assert eventDataValue.operationId == dmiDataOperation.operationId
             assert eventDataValue.ids == dmiDataOperation.cmHandles.id
-            assert eventDataValue.statusCode == responseCode.statusCode
-            assert eventDataValue.statusMessage == responseCode.statusMessage
+            assert eventDataValue.statusCode == responseCode.code
+            assert eventDataValue.statusMessage == responseCode.message
         where: 'the following exceptions are occurred'
             scenario                        | exception                                                                                                || responseCode
-            'http client request exception' | new HttpClientRequestException('error-message', 'error-details', HttpStatus.SERVICE_UNAVAILABLE.value()) || NcmpEventResponseCode.UNABLE_TO_READ_RESOURCE_DATA
-            'timeout exception'             | new TimeoutException()                                                                                   || NcmpEventResponseCode.DMI_SERVICE_NOT_RESPONDING
+            'http client request exception' | new HttpClientRequestException('error-message', 'error-details', HttpStatus.SERVICE_UNAVAILABLE.value()) || UNABLE_TO_READ_RESOURCE_DATA
+            'timeout exception'             | new TimeoutException()                                                                                   || DMI_SERVICE_NOT_RESPONDING
     }
 
     def 'call get all resource data.'() {
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponseSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponseSpec.groovy
index dba29343e9..d76f912234 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponseSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/CmHandleRegistrationResponseSpec.groovy
@@ -1,6 +1,7 @@
 /*
  *  ============LICENSE_START=======================================================
  *  Copyright (C) 2022 Bell Canada
+ *  Modifications 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.
@@ -20,10 +21,11 @@
 
 package org.onap.cps.ncmp.api.models
 
-import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.RegistrationError
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.CM_HANDLE_ALREADY_EXIST
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.UNKNOWN_ERROR
+
 import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse.Status
 import spock.lang.Specification
-
 import java.util.stream.Collectors
 
 class CmHandleRegistrationResponseSpec extends Specification {
@@ -37,7 +39,7 @@ class CmHandleRegistrationResponseSpec extends Specification {
                 assert it.status == Status.SUCCESS
             }
         and: 'error details are null'
-            cmHandleRegistrationResponse.registrationError == null
+            cmHandleRegistrationResponse.ncmpResponseStatus == null
             cmHandleRegistrationResponse.errorText == null
     }
 
@@ -47,33 +49,29 @@ class CmHandleRegistrationResponseSpec extends Specification {
                 CmHandleRegistrationResponse.createFailureResponse('cmHandle', new Exception('unexpected error'))
         then: 'the response is created with expected value'
             with(cmHandleRegistrationResponse) {
-                assert it.registrationError == RegistrationError.UNKNOWN_ERROR
+                assert it.ncmpResponseStatus == UNKNOWN_ERROR
                 assert it.cmHandle == 'cmHandle'
                 assert errorText == 'unexpected error'
             }
     }
 
-    def 'Failed cm-handle Registration Response: for #scenario'() {
-        when: 'cm-handle failure response is created for #scenario'
-            def cmHandleRegistrationResponse =
-                CmHandleRegistrationResponse.createFailureResponse(cmHandleId, registrationError)
+    def 'Failed cm-handle Registration Response'() {
+        when: 'cm-handle failure response is created'
+        def cmHandleRegistrationResponse =
+                CmHandleRegistrationResponse.createFailureResponse('cmHandle', CM_HANDLE_ALREADY_EXIST)
         then: 'the response is created with expected value'
-            with(cmHandleRegistrationResponse) {
-                assert it.registrationError == registrationError
-                assert it.cmHandle == cmHandleId
-                assert it.status == Status.FAILURE
-                assert errorText == registrationError.errorText
-            }
-        where:
-            scenario                   | cmHandleId  | registrationError
-            'cm-handle already exists' | 'cmHandle'  | RegistrationError.CM_HANDLE_ALREADY_EXIST
-            'cm-handle id is invalid'  | 'cm handle' | RegistrationError.CM_HANDLE_INVALID_ID
+        with(cmHandleRegistrationResponse) {
+            assert it.ncmpResponseStatus == CM_HANDLE_ALREADY_EXIST
+            assert it.cmHandle == 'cmHandle'
+            assert it.status == Status.FAILURE
+            assert errorText == CM_HANDLE_ALREADY_EXIST.message
+        }
     }
 
     def 'Failed cm-handle Registration with multiple responses.'() {
         when: 'cm-handle failure response is created for 2 xpaths'
             def cmHandleRegistrationResponses =
-                CmHandleRegistrationResponse.createFailureResponses(["somePathWithId[@id='123']","somePathWithId[@id='456']"], RegistrationError.CM_HANDLE_ALREADY_EXIST)
+                CmHandleRegistrationResponse.createFailureResponses(["somePathWithId[@id='123']","somePathWithId[@id='456']"], CM_HANDLE_ALREADY_EXIST)
         then: 'the response has the correct cm handle ids'
             assert cmHandleRegistrationResponses.size() == 2
             assert cmHandleRegistrationResponses.stream().map(it -> it.cmHandle).collect(Collectors.toList())
@@ -83,12 +81,9 @@ class CmHandleRegistrationResponseSpec extends Specification {
     def 'Failed cm-handle Registration with multiple responses with an unexpected xpath.'() {
         when: 'cm-handle failure response is created for one valid and one unexpected xpath'
             def cmHandleRegistrationResponses =
-                CmHandleRegistrationResponse.createFailureResponses(["somePathWithId[@id='123']","valid/xpath/without-id[@key='123']"], RegistrationError.CM_HANDLE_ALREADY_EXIST)
+                CmHandleRegistrationResponse.createFailureResponses(["somePathWithId[@id='123']","valid/xpath/without-id[@key='123']"], CM_HANDLE_ALREADY_EXIST)
         then: 'the response has only one entry'
             assert cmHandleRegistrationResponses.size() == 1
     }
 
-
-
-
 }
diff --git a/dmi-plugin-demo-and-csit-stub/dmi-plugin-demo-and-csit-stub-service/src/main/java/org/onap/cps/ncmp/dmi/rest/stub/controller/DmiRestStubController.java b/dmi-plugin-demo-and-csit-stub/dmi-plugin-demo-and-csit-stub-service/src/main/java/org/onap/cps/ncmp/dmi/rest/stub/controller/DmiRestStubController.java
index 987436febc..3f9731d72d 100644
--- a/dmi-plugin-demo-and-csit-stub/dmi-plugin-demo-and-csit-stub-service/src/main/java/org/onap/cps/ncmp/dmi/rest/stub/controller/DmiRestStubController.java
+++ b/dmi-plugin-demo-and-csit-stub/dmi-plugin-demo-and-csit-stub-service/src/main/java/org/onap/cps/ncmp/dmi/rest/stub/controller/DmiRestStubController.java
@@ -20,6 +20,8 @@
 
 package org.onap.cps.ncmp.dmi.rest.stub.controller;
 
+import static org.onap.cps.ncmp.api.NcmpResponseStatus.SUCCESS;
+
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.cloudevents.CloudEvent;
@@ -28,12 +30,10 @@ import java.net.URI;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
-import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.json.simple.parser.JSONParser;
 import org.json.simple.parser.ParseException;
-import org.onap.cps.ncmp.api.NcmpEventResponseCode;
 import org.onap.cps.ncmp.api.impl.utils.EventDateTimeFormatter;
 import org.onap.cps.ncmp.dmi.rest.stub.model.data.operational.CmHandle;
 import org.onap.cps.ncmp.dmi.rest.stub.model.data.operational.DataOperationRequest;
@@ -161,9 +161,9 @@ public class DmiRestStubController {
     private DataOperationEvent getDataOperationEvent(final DataOperationRequest dataOperationRequest) {
         final Response response = new Response();
         response.setOperationId(dataOperationRequest.getOperationId());
-        response.setStatusCode(NcmpEventResponseCode.SUCCESS.getStatusCode());
-        response.setStatusMessage(NcmpEventResponseCode.SUCCESS.getStatusMessage());
-        response.setIds(dataOperationRequest.getCmHandles().stream().map(CmHandle::getId).collect(Collectors.toList()));
+        response.setStatusCode(SUCCESS.getCode());
+        response.setStatusMessage(SUCCESS.getMessage());
+        response.setIds(dataOperationRequest.getCmHandles().stream().map(CmHandle::getId).toList());
         response.setResourceIdentifier(dataOperationRequest.getResourceIdentifier());
         response.setOptions(dataOperationRequest.getOptions());
         final String ietfNetworkTopologySample = ResourceFileReaderUtil
@@ -176,7 +176,7 @@ public class DmiRestStubController {
         } catch (final ParseException parseException) {
             log.error("Unable to parse event result as json object. cause : {}", parseException.getMessage());
         }
-        final List<Response> responseList = new ArrayList<>();
+        final List<Response> responseList = new ArrayList<>(1);
         responseList.add(response);
         final Data data = new Data();
         data.setResponses(responseList);