Uplift Spring Boot to 3.2.2
[cps.git] / cps-ncmp-service / src / main / java / org / onap / cps / ncmp / api / impl / NetworkCmProxyDataServiceImpl.java
index 6c1a1b4..b6e399a 100755 (executable)
@@ -1,7 +1,7 @@
 /*
  *  ============LICENSE_START=======================================================
  *  Copyright (C) 2021 highstreet technologies GmbH
- *  Modifications Copyright (C) 2021-2023 Nordix Foundation
+ *  Modifications Copyright (C) 2021-2024 Nordix Foundation
  *  Modifications Copyright (C) 2021 Pantheon.tech
  *  Modifications Copyright (C) 2021-2022 Bell Canada
  *  Modifications Copyright (C) 2023 TechMahindra Ltd.
 
 package org.onap.cps.ncmp.api.impl;
 
-import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME;
+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 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.inventory.LockReasonCategory.MODULE_UPGRADE;
+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;
 
 import com.google.common.collect.Lists;
@@ -40,26 +46,32 @@ import java.util.Set;
 import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
 import org.onap.cps.api.CpsDataService;
 import org.onap.cps.ncmp.api.NetworkCmProxyCmHandleQueryService;
 import org.onap.cps.ncmp.api.NetworkCmProxyDataService;
+import org.onap.cps.ncmp.api.impl.config.embeddedcache.TrustLevelCacheConfig;
 import org.onap.cps.ncmp.api.impl.events.lcm.LcmEventsCmHandleStateHandler;
+import org.onap.cps.ncmp.api.impl.inventory.CmHandleQueries;
+import org.onap.cps.ncmp.api.impl.inventory.CmHandleState;
+import org.onap.cps.ncmp.api.impl.inventory.CompositeState;
+import org.onap.cps.ncmp.api.impl.inventory.CompositeStateBuilder;
+import org.onap.cps.ncmp.api.impl.inventory.CompositeStateUtils;
+import org.onap.cps.ncmp.api.impl.inventory.DataStoreSyncState;
+import org.onap.cps.ncmp.api.impl.inventory.InventoryPersistence;
+import org.onap.cps.ncmp.api.impl.inventory.sync.ModuleOperationsUtils;
 import org.onap.cps.ncmp.api.impl.operations.DmiDataOperations;
 import org.onap.cps.ncmp.api.impl.operations.OperationType;
+import org.onap.cps.ncmp.api.impl.trustlevel.TrustLevel;
+import org.onap.cps.ncmp.api.impl.trustlevel.TrustLevelManager;
+import org.onap.cps.ncmp.api.impl.utils.AlternateIdChecker;
 import org.onap.cps.ncmp.api.impl.utils.CmHandleQueryConditions;
 import org.onap.cps.ncmp.api.impl.utils.InventoryQueryConditions;
 import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
-import org.onap.cps.ncmp.api.inventory.CmHandleQueries;
-import org.onap.cps.ncmp.api.inventory.CmHandleState;
-import org.onap.cps.ncmp.api.inventory.CompositeState;
-import org.onap.cps.ncmp.api.inventory.CompositeStateUtils;
-import org.onap.cps.ncmp.api.inventory.DataStoreSyncState;
-import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
 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;
@@ -72,6 +84,7 @@ import org.onap.cps.spi.exceptions.DataValidationException;
 import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 import org.onap.cps.utils.JsonObjectMapper;
+import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 
@@ -90,27 +103,28 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     private final LcmEventsCmHandleStateHandler lcmEventsCmHandleStateHandler;
     private final CpsDataService cpsDataService;
     private final IMap<String, Object> moduleSyncStartedOnCmHandles;
+    @Qualifier(TrustLevelCacheConfig.TRUST_LEVEL_PER_DMI_PLUGIN_BEAN_NAME)
+    private final Map<String, TrustLevel> trustLevelPerDmiPlugin;
+    private final TrustLevelManager trustLevelManager;
+    private final AlternateIdChecker alternateIdChecker;
 
     @Override
     public DmiPluginRegistrationResponse updateDmiRegistrationAndSyncModule(
-            final DmiPluginRegistration dmiPluginRegistration) {
+        final DmiPluginRegistration dmiPluginRegistration) {
+
         dmiPluginRegistration.validateDmiPluginRegistration();
         final DmiPluginRegistrationResponse dmiPluginRegistrationResponse = new DmiPluginRegistrationResponse();
 
-        if (!dmiPluginRegistration.getRemovedCmHandles().isEmpty()) {
-            dmiPluginRegistrationResponse.setRemovedCmHandles(
-                    parseAndRemoveCmHandlesInDmiRegistration(dmiPluginRegistration.getRemovedCmHandles()));
-        }
+        setTrustLevelPerDmiPlugin(dmiPluginRegistration);
+
+        processRemovedCmHandles(dmiPluginRegistration, dmiPluginRegistrationResponse);
+
+        processCreatedCmHandles(dmiPluginRegistration, dmiPluginRegistrationResponse);
+
+        processUpdatedCmHandles(dmiPluginRegistration, dmiPluginRegistrationResponse);
+
+        processUpgradedCmHandles(dmiPluginRegistration, dmiPluginRegistrationResponse);
 
-        if (!dmiPluginRegistration.getCreatedCmHandles().isEmpty()) {
-            dmiPluginRegistrationResponse.setCreatedCmHandles(
-                    parseAndCreateCmHandlesInDmiRegistrationAndSyncModules(dmiPluginRegistration));
-        }
-        if (!dmiPluginRegistration.getUpdatedCmHandles().isEmpty()) {
-            dmiPluginRegistrationResponse.setUpdatedCmHandles(
-                    networkCmProxyDataServicePropertyHandler
-                            .updateCmHandleProperties(dmiPluginRegistration.getUpdatedCmHandles()));
-        }
         return dmiPluginRegistrationResponse;
     }
 
@@ -122,10 +136,10 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
                                              final String topicParamInQuery,
                                              final String requestId) {
         final ResponseEntity<?> responseEntity = dmiDataOperations.getResourceDataFromDmi(datastoreName, cmHandleId,
-                resourceIdentifier,
-                optionsParamInQuery,
-                topicParamInQuery,
-                requestId);
+            resourceIdentifier,
+            optionsParamInQuery,
+            topicParamInQuery,
+            requestId);
         return responseEntity.getBody();
     }
 
@@ -135,13 +149,13 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
                                              final String resourceIdentifier,
                                              final FetchDescendantsOption fetchDescendantsOption) {
         return cpsDataService.getDataNodes(datastoreName, cmHandleId, resourceIdentifier,
-                fetchDescendantsOption).iterator().next();
+            fetchDescendantsOption).iterator().next();
     }
 
     @Override
     public void executeDataOperationForCmHandles(final String topicParamInQuery,
                                                  final DataOperationRequest
-                                                         dataOperationRequest,
+                                                     dataOperationRequest,
                                                  final String requestId) {
         dmiDataOperations.requestResourceDataFromDmi(topicParamInQuery, dataOperationRequest, requestId);
     }
@@ -153,7 +167,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
                                                                  final String requestData,
                                                                  final String dataType) {
         return dmiDataOperations.writeResourceDataPassThroughRunningFromDmi(cmHandleId, resourceIdentifier,
-                operationType, requestData, dataType);
+            operationType, requestData, dataType);
     }
 
     @Override
@@ -166,6 +180,13 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return inventoryPersistence.getModuleDefinitionsByCmHandleId(cmHandleId);
     }
 
+    @Override
+    public Collection<ModuleDefinition> getModuleDefinitionsByCmHandleAndModule(final String cmHandleId,
+                                                                                final String moduleName,
+                                                                                final String moduleRevision) {
+        return inventoryPersistence.getModuleDefinitionsByCmHandleAndModule(cmHandleId, moduleName, moduleRevision);
+    }
+
     /**
      * Retrieve cm handles with details for the given query parameters.
      *
@@ -174,9 +195,9 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
      */
     @Override
     public Collection<NcmpServiceCmHandle> executeCmHandleSearch(
-            final CmHandleQueryApiParameters cmHandleQueryApiParameters) {
+        final CmHandleQueryApiParameters cmHandleQueryApiParameters) {
         final CmHandleQueryServiceParameters cmHandleQueryServiceParameters = jsonObjectMapper.convertToValueType(
-                cmHandleQueryApiParameters, CmHandleQueryServiceParameters.class);
+            cmHandleQueryApiParameters, CmHandleQueryServiceParameters.class);
         validateCmHandleQueryParameters(cmHandleQueryServiceParameters, CmHandleQueryConditions.ALL_CONDITION_NAMES);
         return networkCmProxyCmHandleQueryService.queryCmHandles(cmHandleQueryServiceParameters);
     }
@@ -190,7 +211,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     @Override
     public Collection<String> executeCmHandleIdSearch(final CmHandleQueryApiParameters cmHandleQueryApiParameters) {
         final CmHandleQueryServiceParameters cmHandleQueryServiceParameters = jsonObjectMapper.convertToValueType(
-                cmHandleQueryApiParameters, CmHandleQueryServiceParameters.class);
+            cmHandleQueryApiParameters, CmHandleQueryServiceParameters.class);
         validateCmHandleQueryParameters(cmHandleQueryServiceParameters, CmHandleQueryConditions.ALL_CONDITION_NAMES);
         return networkCmProxyCmHandleQueryService.queryCmHandleIds(cmHandleQueryServiceParameters);
     }
@@ -199,28 +220,30 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
      * Set the data sync enabled flag, along with the data sync state
      * based on the data sync enabled boolean for the cm handle id provided.
      *
-     * @param cmHandleId      cm handle id
-     * @param dataSyncEnabled data sync enabled flag
+     * @param cmHandleId                 cm handle id
+     * @param dataSyncEnabledTargetValue data sync enabled flag
      */
     @Override
-    public void setDataSyncEnabled(final String cmHandleId, final boolean dataSyncEnabled) {
-        final CompositeState compositeState = inventoryPersistence
-                .getCmHandleState(cmHandleId);
-        if (compositeState.getDataSyncEnabled().equals(dataSyncEnabled)) {
-            log.info("Data-Sync Enabled flag is already: {} ", dataSyncEnabled);
-        } else if (compositeState.getCmHandleState() != CmHandleState.READY) {
-            throw new CpsException("State mismatch exception.", "Cm-Handle not in READY state. Cm handle state is: "
-                    + compositeState.getCmHandleState());
-        } else {
+    public void setDataSyncEnabled(final String cmHandleId, final Boolean dataSyncEnabledTargetValue) {
+        final CompositeState compositeState = inventoryPersistence.getCmHandleState(cmHandleId);
+        if (dataSyncEnabledTargetValue.equals(compositeState.getDataSyncEnabled())) {
+            log.info("Data-Sync Enabled flag is already: {} ", dataSyncEnabledTargetValue);
+            return;
+        }
+        if (CmHandleState.READY.equals(compositeState.getCmHandleState())) {
             final DataStoreSyncState dataStoreSyncState = compositeState.getDataStores()
-                    .getOperationalDataStore().getDataStoreSyncState();
-            if (!dataSyncEnabled && dataStoreSyncState == DataStoreSyncState.SYNCHRONIZED) {
+                .getOperationalDataStore().getDataStoreSyncState();
+            if (Boolean.FALSE.equals(dataSyncEnabledTargetValue)
+                && DataStoreSyncState.SYNCHRONIZED.equals(dataStoreSyncState)) {
+                // TODO : This is hard-coded for onap dmi that need to be addressed
                 cpsDataService.deleteDataNode(NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME, cmHandleId,
-                        "/netconf-state", OffsetDateTime.now());
+                    "/netconf-state", OffsetDateTime.now());
             }
-            CompositeStateUtils.setDataSyncEnabledFlagWithDataSyncState(dataSyncEnabled, compositeState);
-            inventoryPersistence.saveCmHandleState(cmHandleId,
-                    compositeState);
+            CompositeStateUtils.setDataSyncEnabledFlagWithDataSyncState(dataSyncEnabledTargetValue, compositeState);
+            inventoryPersistence.saveCmHandleState(cmHandleId, compositeState);
+        } else {
+            throw new CpsException("State mismatch exception.", "Cm-Handle not in READY state. Cm handle state is: "
+                + compositeState.getCmHandleState());
         }
     }
 
@@ -243,7 +266,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
      */
     @Override
     public Collection<String> executeCmHandleIdSearchForInventory(
-            final CmHandleQueryServiceParameters cmHandleQueryServiceParameters) {
+        final CmHandleQueryServiceParameters cmHandleQueryServiceParameters) {
         validateCmHandleQueryParameters(cmHandleQueryServiceParameters, InventoryQueryConditions.ALL_CONDITION_NAMES);
         return networkCmProxyCmHandleQueryService.queryCmHandleIdsForInventory(cmHandleQueryServiceParameters);
     }
@@ -257,7 +280,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
     @Override
     public NcmpServiceCmHandle getNcmpServiceCmHandle(final String cmHandleId) {
         return YangDataConverter.convertYangModelCmHandleToNcmpServiceCmHandle(
-                inventoryPersistence.getYangModelCmHandle(cmHandleId));
+            inventoryPersistence.getYangModelCmHandle(cmHandleId));
     }
 
     /**
@@ -268,8 +291,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
      */
     @Override
     public Map<String, String> getCmHandlePublicProperties(final String cmHandleId) {
-        final YangModelCmHandle yangModelCmHandle =
-                inventoryPersistence.getYangModelCmHandle(cmHandleId);
+        final YangModelCmHandle yangModelCmHandle = inventoryPersistence.getYangModelCmHandle(cmHandleId);
         final List<YangModelCmHandle.Property> yangModelPublicProperties = yangModelCmHandle.getPublicProperties();
         final Map<String, String> cmHandlePublicProperties = new HashMap<>();
         YangDataConverter.asPropertiesMap(yangModelPublicProperties, cmHandlePublicProperties);
@@ -293,37 +315,35 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
      * @param dmiPluginRegistration dmi plugin registration information.
      * @return cm-handle registration response for create cm-handle requests.
      */
-    public List<CmHandleRegistrationResponse> parseAndCreateCmHandlesInDmiRegistrationAndSyncModules(
-            final DmiPluginRegistration dmiPluginRegistration) {
-        List<CmHandleRegistrationResponse> cmHandleRegistrationResponses = new ArrayList<>();
-        final Map<YangModelCmHandle, CmHandleState> cmHandleStatePerCmHandle = new HashMap<>();
-        try {
-            dmiPluginRegistration.getCreatedCmHandles()
-                    .forEach(cmHandle -> {
+    public List<CmHandleRegistrationResponse> parseAndProcessCreatedCmHandlesInRegistration(
+        final DmiPluginRegistration dmiPluginRegistration, final Collection<String> acceptedCmHandleIds) {
+        final List<NcmpServiceCmHandle> cmHandlesToBeCreated = dmiPluginRegistration.getCreatedCmHandles();
+        final Map<String, TrustLevel> initialTrustLevelPerCmHandleId = new HashMap<>(cmHandlesToBeCreated.size());
+        final List<YangModelCmHandle> yangModelCmHandles = new ArrayList<>(cmHandlesToBeCreated.size());
+        cmHandlesToBeCreated
+                .forEach(cmHandle -> {
+                    if (acceptedCmHandleIds.contains(cmHandle.getCmHandleId())) {
                         final YangModelCmHandle yangModelCmHandle = YangModelCmHandle.toYangModelCmHandle(
                                 dmiPluginRegistration.getDmiPlugin(),
                                 dmiPluginRegistration.getDmiDataPlugin(),
                                 dmiPluginRegistration.getDmiModelPlugin(),
-                                cmHandle);
-                        cmHandleStatePerCmHandle.put(yangModelCmHandle, CmHandleState.ADVISED);
-                    });
-            cmHandleRegistrationResponses = registerNewCmHandles(cmHandleStatePerCmHandle);
-        } catch (final DataValidationException dataValidationException) {
-            cmHandleRegistrationResponses.add(CmHandleRegistrationResponse.createFailureResponse(dmiPluginRegistration
-                            .getCreatedCmHandles().stream()
-                            .map(NcmpServiceCmHandle::getCmHandleId).findFirst().orElse(null),
-                    RegistrationError.CM_HANDLE_INVALID_ID));
-        }
-        return cmHandleRegistrationResponses;
+                                cmHandle,
+                                cmHandle.getModuleSetTag(),
+                                cmHandle.getAlternateId());
+                        yangModelCmHandles.add(yangModelCmHandle);
+                        initialTrustLevelPerCmHandleId.put(cmHandle.getCmHandleId(),
+                            cmHandle.getRegistrationTrustLevel());
+                    }
+                });
+        return registerNewCmHandles(yangModelCmHandles, initialTrustLevelPerCmHandleId);
     }
 
-    protected List<CmHandleRegistrationResponse> parseAndRemoveCmHandlesInDmiRegistration(
-            final List<String> tobeRemovedCmHandles) {
+    protected List<CmHandleRegistrationResponse> parseAndProcessDeletedCmHandlesInRegistration(
+        final List<String> tobeRemovedCmHandles) {
         final List<CmHandleRegistrationResponse> cmHandleRegistrationResponses =
-                new ArrayList<>(tobeRemovedCmHandles.size());
+            new ArrayList<>(tobeRemovedCmHandles.size());
         final Collection<YangModelCmHandle> yangModelCmHandles =
             inventoryPersistence.getYangModelCmHandles(tobeRemovedCmHandles);
-
         updateCmHandleStateBatch(yangModelCmHandles, CmHandleState.DELETING);
 
         final Set<String> notDeletedCmHandles = new HashSet<>();
@@ -352,6 +372,98 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return cmHandleRegistrationResponses;
     }
 
+    private void processRemovedCmHandles(final DmiPluginRegistration dmiPluginRegistration,
+                                         final DmiPluginRegistrationResponse dmiPluginRegistrationResponse) {
+        if (!dmiPluginRegistration.getRemovedCmHandles().isEmpty()) {
+            dmiPluginRegistrationResponse.setRemovedCmHandles(
+                parseAndProcessDeletedCmHandlesInRegistration(dmiPluginRegistration.getRemovedCmHandles()));
+        }
+    }
+
+    private void processCreatedCmHandles(final DmiPluginRegistration dmiPluginRegistration,
+                                         final DmiPluginRegistrationResponse dmiPluginRegistrationResponse) {
+        final Collection<String> acceptedCmHandleIds = alternateIdChecker
+            .getIdsOfCmHandlesWithAcceptableAlternateId(dmiPluginRegistration.getCreatedCmHandles());
+        if (!acceptedCmHandleIds.isEmpty()) {
+            dmiPluginRegistrationResponse.setCreatedCmHandles(
+                parseAndProcessCreatedCmHandlesInRegistration(dmiPluginRegistration, acceptedCmHandleIds));
+        }
+    }
+
+    private void processUpdatedCmHandles(final DmiPluginRegistration dmiPluginRegistration,
+                                         final DmiPluginRegistrationResponse dmiPluginRegistrationResponse) {
+        if (!dmiPluginRegistration.getUpdatedCmHandles().isEmpty()) {
+            dmiPluginRegistrationResponse.setUpdatedCmHandles(
+                networkCmProxyDataServicePropertyHandler
+                    .updateCmHandleProperties(dmiPluginRegistration.getUpdatedCmHandles()));
+        }
+    }
+
+    private void processUpgradedCmHandles(final DmiPluginRegistration dmiPluginRegistration,
+                                          final DmiPluginRegistrationResponse dmiPluginRegistrationResponse) {
+        if (dmiPluginRegistration.getUpgradedCmHandles() != null
+            && !dmiPluginRegistration.getUpgradedCmHandles().getCmHandles().isEmpty()) {
+            dmiPluginRegistrationResponse.setUpgradedCmHandles(
+                parseAndProcessUpgradedCmHandlesInRegistration(dmiPluginRegistration));
+        }
+    }
+
+
+    protected List<CmHandleRegistrationResponse> parseAndProcessUpgradedCmHandlesInRegistration(
+        final DmiPluginRegistration dmiPluginRegistration) {
+
+        final List<String> upgradedCmHandleIds = dmiPluginRegistration.getUpgradedCmHandles().getCmHandles();
+        final String upgradedModuleSetTag = dmiPluginRegistration.getUpgradedCmHandles().getModuleSetTag();
+        final Map<YangModelCmHandle, CmHandleState> acceptedCmHandleStatePerCmHandle
+                = new HashMap<>(upgradedCmHandleIds.size());
+        final List<CmHandleRegistrationResponse> cmHandleUpgradeResponses = new ArrayList<>(upgradedCmHandleIds.size());
+
+        for (final String cmHandleId : upgradedCmHandleIds) {
+            try {
+                final YangModelCmHandle yangModelCmHandle = inventoryPersistence.getYangModelCmHandle(cmHandleId);
+                if (yangModelCmHandle.getCompositeState().getCmHandleState() == CmHandleState.READY) {
+                    if (moduleUpgradeCanBeSkipped(yangModelCmHandle, upgradedModuleSetTag)) {
+                        cmHandleUpgradeResponses.add(CmHandleRegistrationResponse.createSuccessResponse(cmHandleId));
+                    } else {
+                        updateYangModelCmHandleForUpgrade(yangModelCmHandle, upgradedModuleSetTag);
+                        acceptedCmHandleStatePerCmHandle.put(yangModelCmHandle, CmHandleState.LOCKED);
+                    }
+                } else {
+                    cmHandleUpgradeResponses.add(
+                            CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLES_NOT_READY));
+                }
+            } catch (final DataNodeNotFoundException dataNodeNotFoundException) {
+                log.error("Unable to find data node for cm handle id : {} , caused by : {}",
+                        cmHandleId, dataNodeNotFoundException.getMessage());
+                cmHandleUpgradeResponses.add(
+                        CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLES_NOT_FOUND));
+            } catch (final DataValidationException dataValidationException) {
+                log.error("Unable to upgrade cm handle id: {}, caused by : {}",
+                        cmHandleId, dataValidationException.getMessage());
+                cmHandleUpgradeResponses.add(
+                        CmHandleRegistrationResponse.createFailureResponse(cmHandleId, CM_HANDLE_INVALID_ID));
+            }
+        }
+        cmHandleUpgradeResponses.addAll(upgradeCmHandles(acceptedCmHandleStatePerCmHandle));
+        return cmHandleUpgradeResponses;
+    }
+
+    private static boolean moduleUpgradeCanBeSkipped(final YangModelCmHandle yangModelCmHandle,
+                                                     final String upgradedModuleSetTag) {
+        if (StringUtils.isBlank(upgradedModuleSetTag)) {
+            return false;
+        }
+        return yangModelCmHandle.getModuleSetTag().equals(upgradedModuleSetTag);
+    }
+
+    private static void updateYangModelCmHandleForUpgrade(final YangModelCmHandle yangModelCmHandle,
+                                                          final String upgradedModuleSetTag) {
+        final String lockReasonWithModuleSetTag = String.format(ModuleOperationsUtils.MODULE_SET_TAG_MESSAGE_FORMAT,
+                upgradedModuleSetTag);
+        yangModelCmHandle.setCompositeState(new CompositeStateBuilder().withCmHandleState(CmHandleState.READY)
+                .withLockReason(MODULE_UPGRADE, lockReasonWithModuleSetTag).build());
+    }
+
     private CmHandleRegistrationResponse deleteCmHandleAndGetCmHandleRegistrationResponse(final String cmHandleId) {
         try {
             deleteCmHandleFromDbAndModuleSyncMap(cmHandleId);
@@ -359,13 +471,11 @@ 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);
@@ -381,7 +491,8 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
 
     private void deleteCmHandleFromDbAndModuleSyncMap(final String cmHandleId) {
         inventoryPersistence.deleteSchemaSetWithCascade(cmHandleId);
-        inventoryPersistence.deleteDataNode("/dmi-registry/cm-handles[@id='" + cmHandleId + "']");
+        inventoryPersistence.deleteDataNode(NCMP_DMI_REGISTRY_PARENT + "/cm-handles[@id='" + cmHandleId
+            + "']");
         removeDeletedCmHandleFromModuleSyncMap(cmHandleId);
     }
 
@@ -393,7 +504,7 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
 
     private Collection<String> mapCmHandleIdsToXpaths(final Collection<String> cmHandles) {
         return cmHandles.stream()
-            .map(cmHandleId -> "/dmi-registry/cm-handles[@id='" + cmHandleId + "']")
+            .map(cmHandleId -> NCMP_DMI_REGISTRY_PARENT + "/cm-handles[@id='" + cmHandleId + "']")
             .collect(Collectors.toSet());
     }
 
@@ -404,20 +515,47 @@ 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());
+    private List<CmHandleRegistrationResponse> registerNewCmHandles(final List<YangModelCmHandle> yangModelCmHandles,
+                                                                    final Map<String, TrustLevel>
+                                                                            initialTrustLevelPerCmHandleId) {
+        final Set<String> cmHandleIds = initialTrustLevelPerCmHandleId.keySet();
         try {
-            lcmEventsCmHandleStateHandler.updateCmHandleStateBatch(cmHandleStatePerCmHandle);
+            lcmEventsCmHandleStateHandler.initiateStateAdvised(yangModelCmHandles);
+            trustLevelManager.handleInitialRegistrationOfTrustLevels(initialTrustLevelPerCmHandleId);
             return CmHandleRegistrationResponse.createSuccessResponses(cmHandleIds);
         } catch (final AlreadyDefinedException alreadyDefinedException) {
             return CmHandleRegistrationResponse.createFailureResponses(
-                    alreadyDefinedException.getAlreadyDefinedObjectNames(),
-                    RegistrationError.CM_HANDLE_ALREADY_EXIST);
+                    alreadyDefinedException.getAlreadyDefinedObjectNames(), CM_HANDLE_ALREADY_EXIST);
         } catch (final Exception exception) {
             return CmHandleRegistrationResponse.createFailureResponses(cmHandleIds, exception);
         }
     }
 
+    private List<CmHandleRegistrationResponse> upgradeCmHandles(final Map<YangModelCmHandle, CmHandleState>
+                                                                    cmHandleStatePerCmHandle) {
+        final List<String> cmHandleIds = getCmHandleIds(cmHandleStatePerCmHandle);
+        log.info("Moving cm handles : {} into locked (for upgrade) state.", cmHandleIds);
+        try {
+            lcmEventsCmHandleStateHandler.updateCmHandleStateBatch(cmHandleStatePerCmHandle);
+            return CmHandleRegistrationResponse.createSuccessResponses(cmHandleIds);
+        } catch (final Exception e) {
+            log.error("Unable to update cmHandleIds : {} , caused by : {}", cmHandleIds, e.getMessage());
+            return CmHandleRegistrationResponse.createFailureResponses(cmHandleIds, e);
+        }
+    }
+
+    private static List<String> getCmHandleIds(final Map<YangModelCmHandle, CmHandleState> cmHandleStatePerCmHandle) {
+        return cmHandleStatePerCmHandle.keySet().stream().map(YangModelCmHandle::getId).toList();
+    }
+
+    private void setTrustLevelPerDmiPlugin(final DmiPluginRegistration dmiPluginRegistration) {
+        if (DmiPluginRegistration.isNullEmptyOrBlank(dmiPluginRegistration.getDmiDataPlugin())) {
+            trustLevelPerDmiPlugin.put(dmiPluginRegistration.getDmiPlugin(), TrustLevel.COMPLETE);
+        } else {
+            trustLevelPerDmiPlugin.put(dmiPluginRegistration.getDmiDataPlugin(), TrustLevel.COMPLETE);
+        }
+    }
+
+
+
 }