Add method to get YANG module sources for CM handle

- part of this commit includes renaming the enum SyncState to
  DataStoreSyncState

Issue-ID: CPS-1064
Signed-off-by: emaclee <lee.anjella.macabuhay@est.tech>
Change-Id: I6bf419141a1b33f09871946445cdfff422c8c354

33 files changed, 311 insertions, 40 deletions

diff --git a/cps-ncmp-rest/docs/openapi/components.yaml b/cps-ncmp-rest/docs/openapi/components.yaml
index cf254e511e..8249a7a3d7 100644
--- a/cps-ncmp-rest/docs/openapi/components.yaml
+++ b/cps-ncmp-rest/docs/openapi/components.yaml
@@ -145,6 +145,30 @@ components:
           type: string
           example: my-module-revision
 
+    RestModuleDefinition:
+      type: object
+      title: Module definitions
+      properties:
+        moduleName:
+          type: string
+          example: my-module-name
+        revision:
+          type: string
+          example: 2020-09-15
+        content:
+          type: string
+          example: |
+            module stores {
+              yang-version 1.1;
+              namespace "org:onap:ccsdk:sample";
+              prefix book-store;
+              revision "2020-09-15" {
+                description
+                "Sample Model";
+              }
+            }
+
+
     CmHandleQueryParameters:
       type: object
       title: Cm Handle query parameters for executing cm handle search
diff --git a/cps-ncmp-rest/docs/openapi/ncmp.yml b/cps-ncmp-rest/docs/openapi/ncmp.yml
index 8bdaa82d8c..aaf0d6a1ab 100755
--- a/cps-ncmp-rest/docs/openapi/ncmp.yml
+++ b/cps-ncmp-rest/docs/openapi/ncmp.yml
@@ -246,6 +246,31 @@ fetchModuleReferencesByCmHandle:
       500:
         $ref: 'components.yaml#/components/responses/InternalServerError'
 
+fetchModuleDefinitionsByCmHandle:
+  get:
+    description: Fetch all module definitions (name, revision, yang resource) for a given cm handle
+    tags:
+      - network-cm-proxy
+    summary: Fetch all module definitions (name, revision, yang resource) for a given cm handle
+    operationId: getModuleDefinitionsByCmHandleId
+    parameters:
+      - $ref: 'components.yaml#/components/parameters/cmHandleInPath'
+    responses:
+      200:
+        description: OK
+        content:
+          application/json:
+            schema:
+              type: array
+              items:
+                $ref: 'components.yaml#/components/schemas/RestModuleDefinition'
+      401:
+        $ref: 'components.yaml#/components/responses/Unauthorized'
+      403:
+        $ref: 'components.yaml#/components/responses/Forbidden'
+      500:
+        $ref: 'components.yaml#/components/responses/InternalServerError'
+
 searchCmHandles:
   post:
     description: Execute cm handle query search, to be included in the result a cm-handle must fulfill ALL the conditions listed here, if one of the given module names does not exists, return with an empty collection.
diff --git a/cps-ncmp-rest/docs/openapi/openapi.yml b/cps-ncmp-rest/docs/openapi/openapi.yml
index ad7dd1d4f7..35be59a38c 100755
--- a/cps-ncmp-rest/docs/openapi/openapi.yml
+++ b/cps-ncmp-rest/docs/openapi/openapi.yml
@@ -35,6 +35,9 @@ paths:
   /v1/ch/{cm-handle}/modules:
     $ref: 'ncmp.yml#/fetchModuleReferencesByCmHandle'
 
+  /v1/ch/{cm-handle}/modules/definitions:
+    $ref: 'ncmp.yml#/fetchModuleDefinitionsByCmHandle'
+
   /v1/ch/searches:
     $ref: 'ncmp.yml#/searchCmHandles'
 
diff --git a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java
index a9ec863d53..118fa45263 100644
--- a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java
+++ b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java
@@ -20,6 +20,7 @@
 
 package org.onap.cps.ncmp.rest.controller;
 
+import org.mapstruct.InheritConfiguration;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
 import org.mapstruct.NullValueCheckStrategy;
@@ -28,7 +29,9 @@ import org.onap.cps.ncmp.api.models.DmiPluginRegistration;
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
 import org.onap.cps.ncmp.rest.model.RestDmiPluginRegistration;
 import org.onap.cps.ncmp.rest.model.RestInputCmHandle;
+import org.onap.cps.ncmp.rest.model.RestModuleDefinition;
 import org.onap.cps.ncmp.rest.model.RestModuleReference;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 
 @Mapper(componentModel = "spring")
@@ -52,4 +55,8 @@ public interface NcmpRestInputMapper {
 
     RestModuleReference toRestModuleReference(
         final ModuleReference moduleReference);
+
+    @InheritConfiguration(name = "toRestModuleReference")
+    RestModuleDefinition toRestModuleDefinition(
+            final ModuleDefinition moduleDefinition);
 }
\ No newline at end of file
diff --git a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyController.java b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyController.java
index e0488c2279..33355475d9 100755
--- a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyController.java
+++ b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NetworkCmProxyController.java
@@ -47,6 +47,7 @@ import org.onap.cps.ncmp.rest.executor.CpsNcmpTaskExecutor;
 import org.onap.cps.ncmp.rest.mapper.CmHandleStateMapper;
 import org.onap.cps.ncmp.rest.model.CmHandlePublicProperties;
 import org.onap.cps.ncmp.rest.model.CmHandleQueryParameters;
+import org.onap.cps.ncmp.rest.model.RestModuleDefinition;
 import org.onap.cps.ncmp.rest.model.RestModuleReference;
 import org.onap.cps.ncmp.rest.model.RestOutputCmHandle;
 import org.onap.cps.ncmp.rest.model.RestOutputCmHandleCompositeState;
@@ -290,6 +291,21 @@ public class NetworkCmProxyController implements NetworkCmProxyApi {
     }
 
     /**
+     * Return module definitions for a cm handle.
+     *
+     * @param cmHandleId cm-handle identifier
+     * @return list of module definitions (module name, revision, yang resource content)
+     */
+    @Override
+    public ResponseEntity<List<RestModuleDefinition>> getModuleDefinitionsByCmHandleId(final String cmHandleId) {
+        final List<RestModuleDefinition> restModuleDefinitions =
+                networkCmProxyDataService.getModuleDefinitionsByCmHandleId(cmHandleId).stream()
+                        .map(ncmpRestInputMapper::toRestModuleDefinition)
+                        .collect(Collectors.toList());
+        return new ResponseEntity<>(restModuleDefinitions, HttpStatus.OK);
+    }
+
+    /**
      * Return module references for a cm handle.
      *
      * @param cmHandle the cm handle
diff --git a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapper.java b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapper.java
index 933ca88c9e..ca109d649c 100644
--- a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapper.java
+++ b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapper.java
@@ -55,7 +55,8 @@ public interface CmHandleStateMapper {
 
         if (compositeStateDataStore.getOperationalDataStore() != null) {
             final SyncState operationalSyncState = new SyncState();
-            operationalSyncState.setState(compositeStateDataStore.getOperationalDataStore().getSyncState().name());
+            operationalSyncState.setState(compositeStateDataStore.getOperationalDataStore()
+                    .getDataStoreSyncState().name());
             operationalSyncState.setLastSyncTime(compositeStateDataStore.getOperationalDataStore().getLastSyncTime());
             dataStores.setOperational(operationalSyncState);
         }
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy
index bb762080d2..cd3770eb84 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy
@@ -24,7 +24,9 @@ import org.mapstruct.factory.Mappers
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
 import org.onap.cps.ncmp.rest.model.RestDmiPluginRegistration
 import org.onap.cps.ncmp.rest.model.RestInputCmHandle
+import org.onap.cps.ncmp.rest.model.RestModuleDefinition
 import org.onap.cps.ncmp.rest.model.RestModuleReference
+import org.onap.cps.spi.model.ModuleDefinition
 import org.onap.cps.spi.model.ModuleReference
 import spock.lang.Specification
 
@@ -87,4 +89,19 @@ class NcmpRestInputMapperSpec extends Specification {
         then: 'the result is of the correct class RestModuleReference'
             result.class == RestModuleReference.class
     }
+
+    def 'Convert a ModuleDefinition to a RestModuleDefinition'() {
+        given: 'a ModuleDefinition'
+            def moduleDefinition = new ModuleDefinition('moduleName','revision', 'content')
+        when: 'toRestModuleDefinition is called'
+            def result = objectUnderTest.toRestModuleDefinition(moduleDefinition)
+        then: 'the result is of the correct class RestModuleDefinition'
+            result.class == RestModuleDefinition.class
+        and: 'all contents are mapped correctly'
+            result.toString()=='class RestModuleDefinition {\n' +
+                    '    moduleName: moduleName\n' +
+                    '    revision: revision\n' +
+                    '    content: content\n' +
+                    '}'
+    }
 }
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyControllerSpec.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyControllerSpec.groovy
index 93d8358fe7..729df9ce4d 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyControllerSpec.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NetworkCmProxyControllerSpec.groovy
@@ -26,12 +26,13 @@ package org.onap.cps.ncmp.rest.controller
 import org.mapstruct.factory.Mappers
 import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeState
-import org.onap.cps.ncmp.api.inventory.SyncState
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
 import org.onap.cps.ncmp.rest.mapper.CmHandleStateMapper
 import org.onap.cps.ncmp.rest.executor.CpsNcmpTaskExecutor
 import org.onap.cps.ncmp.rest.util.DeprecationHelper
+import org.onap.cps.spi.model.ModuleDefinition
 import spock.lang.Shared
 
 import java.time.OffsetDateTime
@@ -408,10 +409,24 @@ class NetworkCmProxyControllerSpec extends Specification {
             ':passthrough-running'     | 'passthrough-running'
     }
 
+    def 'Get module definitions based on cmHandleId.' () {
+        when: 'get module definition request is performed'
+            def response = mvc.perform(get("$ncmpBasePathV1/ch/some-cmhandle/modules/definitions"))
+                    .andReturn().response
+        then: 'ncmp service method to get module definitions is called'
+            mockNetworkCmProxyDataService.getModuleDefinitionsByCmHandleId('some-cmhandle')
+                    >> [new ModuleDefinition('sampleModuleName', '2021-10-03',
+                    String.format('module sampleModuleName{ %n sample module content %n }'))]
+        and: 'response contains an array with the module name, revision and content where content contains \\n for newlines'
+            response.getContentAsString() == '[{"moduleName":"sampleModuleName","revision":"2021-10-03","content":"module sampleModuleName{ \\n sample module content \\n }"}]'
+        and: 'response returns an OK http code'
+            response.status == HttpStatus.OK.value()
+    }
+
     def dataStores() {
         DataStores.builder()
             .operationalDataStore(Operational.builder()
-                .syncState(SyncState.NONE_REQUESTED)
+                .dataStoreSyncState(DataStoreSyncState.NONE_REQUESTED)
                 .lastSyncTime(formattedDateAndTime.toString()).build()).build()
     }
 
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapperTest.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapperTest.groovy
index a6c1278d96..42fda770b7 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapperTest.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/mapper/CmHandleStateMapperTest.groovy
@@ -24,8 +24,8 @@ import org.mapstruct.factory.Mappers
 import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeStateBuilder
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory
-import org.onap.cps.ncmp.api.inventory.SyncState
 import org.onap.cps.ncmp.rest.model.CmHandleCompositeState
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import spock.lang.Specification
 
 import java.time.OffsetDateTime
@@ -44,7 +44,7 @@ class CmHandleStateMapperTest extends Specification {
                 .withCmHandleState(CmHandleState.ADVISED)
                 .withLastUpdatedTime(formattedDateAndTime.toString())
                 .withLockReason(LockReasonCategory.LOCKED_MISBEHAVING, 'locked other details')
-                .withOperationalDataStores(SyncState.SYNCHRONIZED, formattedDateAndTime).build()
+                .withOperationalDataStores(DataStoreSyncState.SYNCHRONIZED, formattedDateAndTime).build()
         compositeState.setDataSyncEnabled(false)
         when: 'mapper is called'
             def result = objectUnderTest.toCmHandleCompositeState(compositeState)
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
index 1ad61e6a6d..ea27d4a1e9 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/NetworkCmProxyDataService.java
@@ -33,6 +33,7 @@ import org.onap.cps.ncmp.api.models.CmHandleQueryApiParameters;
 import org.onap.cps.ncmp.api.models.DmiPluginRegistration;
 import org.onap.cps.ncmp.api.models.DmiPluginRegistrationResponse;
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 
 /*
@@ -107,6 +108,14 @@ public interface NetworkCmProxyDataService {
     Collection<ModuleReference> getYangResourcesModuleReferences(String cmHandleId);
 
     /**
+     * Retrieve module definitions for the given cm handle.
+     *
+     * @param cmHandleId cm handle identifier
+     * @return a collection of module definition (moduleName, revision and yang resource content)
+     */
+    Collection<ModuleDefinition> getModuleDefinitionsByCmHandleId(String cmHandleId);
+
+    /**
      * Query cm handle details by cm handle's name.
      *
      * @param cmHandleId cm handle identifier
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 e118bf1e58..044a5a44f9 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
@@ -63,6 +63,7 @@ import org.onap.cps.spi.exceptions.DataNodeNotFoundException;
 import org.onap.cps.spi.exceptions.DataValidationException;
 import org.onap.cps.spi.exceptions.SchemaSetNotFoundException;
 import org.onap.cps.spi.model.CmHandleQueryServiceParameters;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 import org.onap.cps.utils.CpsValidator;
 import org.onap.cps.utils.JsonObjectMapper;
@@ -153,6 +154,12 @@ public class NetworkCmProxyDataServiceImpl implements NetworkCmProxyDataService
         return cpsModuleService.getYangResourcesModuleReferences(NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME, cmHandleId);
     }
 
+    @Override
+    public Collection<ModuleDefinition> getModuleDefinitionsByCmHandleId(final String cmHandleId) {
+        CpsValidator.validateNameCharacters(cmHandleId);
+        return inventoryPersistence.getModuleDefinitionsByCmHandleId(cmHandleId);
+    }
+
     /**
      * Retrieve cm handles with details for the given query parameters.
      *
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeState.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeState.java
index df303b5daa..e8fcaabe91 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeState.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeState.java
@@ -94,7 +94,7 @@ public class CompositeState {
     public static class Operational {
 
         @JsonProperty("sync-state")
-        private SyncState syncState;
+        private DataStoreSyncState dataStoreSyncState;
 
         @JsonProperty("last-sync-time")
         private String lastSyncTime;
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeStateBuilder.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeStateBuilder.java
index 91e92ea6f9..a0fc0c3a91 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeStateBuilder.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/CompositeStateBuilder.java
@@ -94,13 +94,14 @@ public class CompositeStateBuilder {
     /**
      * To use attributes for creating {@link CompositeState}.
      *
-     * @param syncState for the locked state
+     * @param dataStoreSyncState for the locked state
      * @param lastSyncTime for the locked state
      * @return CompositeStateBuilder
      */
-    public CompositeStateBuilder withOperationalDataStores(final SyncState syncState, final String lastSyncTime) {
+    public CompositeStateBuilder withOperationalDataStores(final DataStoreSyncState dataStoreSyncState,
+                                                           final String lastSyncTime) {
         this.datastores = DataStores.builder().operationalDataStore(
-            Operational.builder().syncState(syncState).lastSyncTime(lastSyncTime).build()).build();
+            Operational.builder().dataStoreSyncState(dataStoreSyncState).lastSyncTime(lastSyncTime).build()).build();
         return this;
     }
 
@@ -133,7 +134,7 @@ public class CompositeStateBuilder {
 
     private Operational getOperationalDataStore(final DataNode dataStoreNodes) {
         return Operational.builder()
-                .syncState(SyncState.valueOf((String) dataStoreNodes.getLeaves().get("sync-state")))
+                .dataStoreSyncState(DataStoreSyncState.valueOf((String) dataStoreNodes.getLeaves().get("sync-state")))
                 .lastSyncTime((String) dataStoreNodes.getLeaves().get("last-sync-time"))
                 .build();
     }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/SyncState.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/DataStoreSyncState.java
index 9c7a476183..4dbedf5f1c 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/SyncState.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/DataStoreSyncState.java
@@ -20,6 +20,6 @@
 
 package org.onap.cps.ncmp.api.inventory;
 
-public enum SyncState {
+public enum DataStoreSyncState {
     SYNCHRONIZED, UNSYNCHRONIZED, NONE_REQUESTED
 }
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
index c24063cb45..f0d1c9b4b7 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/InventoryPersistence.java
@@ -21,15 +21,20 @@
 
 package org.onap.cps.ncmp.api.inventory;
 
+import static org.onap.cps.ncmp.api.impl.constants.DmiRegistryConstants.NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME;
+
 import java.time.OffsetDateTime;
+import java.util.Collection;
 import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.onap.cps.api.CpsDataService;
+import org.onap.cps.api.CpsModuleService;
 import org.onap.cps.ncmp.api.impl.utils.YangDataConverter;
 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
 import org.onap.cps.spi.CpsDataPersistenceService;
 import org.onap.cps.spi.FetchDescendantsOption;
 import org.onap.cps.spi.model.DataNode;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.utils.CpsValidator;
 import org.onap.cps.utils.JsonObjectMapper;
 import org.springframework.stereotype.Component;
@@ -48,6 +53,8 @@ public class InventoryPersistence {
 
     private final CpsDataService cpsDataService;
 
+    private final CpsModuleService cpsModuleService;
+
     private final CpsDataPersistenceService cpsDataPersistenceService;
 
     private static final CompositeStateBuilder compositeStateBuilder = new CompositeStateBuilder();
@@ -120,13 +127,13 @@ public class InventoryPersistence {
 
     /**
      * Method which returns cm handles by the operational sync state of cm handle.
-     * @param syncState sync state
+     * @param dataStoreSyncState sync state
      * @return a list of cm handles
      */
-    public List<DataNode> getCmHandlesByOperationalSyncState(final SyncState syncState) {
+    public List<DataNode> getCmHandlesByOperationalSyncState(final DataStoreSyncState dataStoreSyncState) {
         return cpsDataPersistenceService.queryDataNodes(NCMP_DATASPACE_NAME,
             NCMP_DMI_REGISTRY_ANCHOR, "//state/datastores"
-                + "/operational[@sync-state=\"" + syncState + "\"]/ancestor::cm-handles",
+                + "/operational[@sync-state=\"" + dataStoreSyncState + "\"]/ancestor::cm-handles",
             FetchDescendantsOption.OMIT_DESCENDANTS);
     }
 
@@ -140,6 +147,16 @@ public class InventoryPersistence {
         return YangDataConverter.convertCmHandleToYangModel(getCmHandleDataNode(cmHandleId), cmHandleId);
     }
 
+    /**
+     * Method to return module definitions by cmHandleId.
+     *
+     * @param cmHandleId cm handle ID
+     * @return a collection of module definitions (moduleName, revision and yang resource content)
+     */
+    public Collection<ModuleDefinition> getModuleDefinitionsByCmHandleId(final String cmHandleId) {
+        return cpsModuleService.getModuleDefinitionsByAnchorName(NFP_OPERATIONAL_DATASTORE_DATASPACE_NAME, cmHandleId);
+    }
+
     private DataNode getCmHandleDataNode(final String cmHandle) {
         return cpsDataService.getDataNode(NCMP_DATASPACE_NAME,
             NCMP_DMI_REGISTRY_ANCHOR,
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/DataSyncWatchdog.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/DataSyncWatchdog.java
index 553db65dd0..153921a9f7 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/DataSyncWatchdog.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/DataSyncWatchdog.java
@@ -26,8 +26,8 @@ import lombok.extern.slf4j.Slf4j;
 import org.onap.cps.api.CpsDataService;
 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle;
 import org.onap.cps.ncmp.api.inventory.CompositeState;
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState;
 import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
-import org.onap.cps.ncmp.api.inventory.SyncState;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 
@@ -64,7 +64,7 @@ public class DataSyncWatchdog {
             compositeState.setLastUpdateTimeNow();
             compositeState.getDataStores()
                     .setOperationalDataStore(CompositeState.Operational.builder()
-                            .syncState(SyncState.SYNCHRONIZED)
+                            .dataStoreSyncState(DataStoreSyncState.SYNCHRONIZED)
                             .lastSyncTime(CompositeState.nowInSyncTimeFormat()).build());
             inventoryPersistence.saveCmHandleState(cmHandleId, compositeState);
             unSynchronizedReadyCmHandle = syncUtils.getAnUnSynchronizedReadyCmHandle();
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/SyncUtils.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/SyncUtils.java
index 8b7dfe6b81..0c3af6aaeb 100644
--- a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/SyncUtils.java
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/inventory/sync/SyncUtils.java
@@ -43,9 +43,9 @@ 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.CmHandleState;
 import org.onap.cps.ncmp.api.inventory.CompositeState;
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState;
 import org.onap.cps.ncmp.api.inventory.InventoryPersistence;
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory;
-import org.onap.cps.ncmp.api.inventory.SyncState;
 import org.onap.cps.spi.FetchDescendantsOption;
 import org.onap.cps.spi.model.DataNode;
 import org.onap.cps.utils.JsonObjectMapper;
@@ -92,7 +92,7 @@ public class SyncUtils {
      */
     public YangModelCmHandle getAnUnSynchronizedReadyCmHandle() {
         final List<DataNode> unSynchronizedCmHandles = inventoryPersistence
-                .getCmHandlesByOperationalSyncState(SyncState.UNSYNCHRONIZED);
+                .getCmHandlesByOperationalSyncState(DataStoreSyncState.UNSYNCHRONIZED);
         if (unSynchronizedCmHandles.isEmpty()) {
             return null;
         }
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 c11d09d5a2..02e6419c34 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
@@ -23,7 +23,6 @@ package org.onap.cps.ncmp.api.impl
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import org.onap.cps.ncmp.api.NetworkCmProxyCmHandlerQueryService
-import org.onap.cps.api.CpsAdminService
 import org.onap.cps.api.CpsDataService
 import org.onap.cps.api.CpsModuleService
 import org.onap.cps.ncmp.api.impl.exception.DmiRequestException
@@ -32,7 +31,6 @@ import org.onap.cps.ncmp.api.inventory.InventoryPersistence
 import org.onap.cps.ncmp.api.models.CmHandleRegistrationResponse
 import org.onap.cps.ncmp.api.models.DmiPluginRegistration
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
-import org.onap.cps.ncmp.api.inventory.sync.ModuleSyncService
 import org.onap.cps.spi.exceptions.AlreadyDefinedException
 import org.onap.cps.spi.exceptions.DataNodeNotFoundException
 import org.onap.cps.spi.exceptions.DataValidationException
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplSpec.groovy
index 48c28a8952..2e333b5070 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/NetworkCmProxyDataServiceImplSpec.groovy
@@ -28,7 +28,7 @@ import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeState
 import org.onap.cps.ncmp.api.inventory.InventoryPersistence
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory
-import org.onap.cps.ncmp.api.inventory.SyncState
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import org.onap.cps.ncmp.api.models.CmHandleQueryApiParameters
 import org.onap.cps.ncmp.api.models.ConditionApiProperties
 import org.onap.cps.ncmp.api.models.DmiPluginRegistration
@@ -297,10 +297,18 @@ class NetworkCmProxyDataServiceImplSpec extends Specification {
             assert result == ['cm-handle-id-1'] as Set
     }
 
+    def 'Getting module definitions.'() {
+        when: 'get module definitions method is called with a valid cm handle ID'
+            objectUnderTest.getModuleDefinitionsByCmHandleId('some-cm-handle')
+        then: 'CPS module services is invoked once'
+            1 * mockInventoryPersistence.getModuleDefinitionsByCmHandleId('some-cm-handle')
+    }
+
+
     def dataStores() {
         CompositeState.DataStores.builder()
                 .operationalDataStore(CompositeState.Operational.builder()
-                        .syncState(SyncState.NONE_REQUESTED)
+                        .dataStoreSyncState(DataStoreSyncState.NONE_REQUESTED)
                         .lastSyncTime('some-timestamp').build()).build()
     }
 
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateBuilderSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateBuilderSpec.groovy
index 60fec6f867..8670948598 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateBuilderSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateBuilderSpec.groovy
@@ -47,11 +47,11 @@ class CompositeStateBuilderSpec extends Specification {
     def "Composite State Specification"() {
         when: 'using composite state builder '
             def compositeState = new CompositeStateBuilder().withCmHandleState(CmHandleState.ADVISED)
-                    .withLockReason(LockReasonCategory.LOCKED_MISBEHAVING,"").withOperationalDataStores(SyncState.UNSYNCHRONIZED,
+                    .withLockReason(LockReasonCategory.LOCKED_MISBEHAVING,"").withOperationalDataStores(DataStoreSyncState.UNSYNCHRONIZED,
                     formattedDateAndTime.toString()).withLastUpdatedTime(formattedDateAndTime).build()
         then: 'it matches expected cm handle state and data store sync state'
             assert compositeState.cmHandleState == CmHandleState.ADVISED
-            assert compositeState.dataStores.operationalDataStore.syncState == SyncState.UNSYNCHRONIZED
+            assert compositeState.dataStores.operationalDataStore.dataStoreSyncState == DataStoreSyncState.UNSYNCHRONIZED
     }
 
     def "Build composite state from DataNode "() {
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateSpec.groovy
index 0a6f8c350a..bf42fbfeea 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/CompositeStateSpec.groovy
@@ -54,7 +54,7 @@ class CompositeStateSpec extends Specification {
 
     def dataStores() {
         DataStores.builder().operationalDataStore(Operational.builder()
-            .syncState(SyncState.NONE_REQUESTED)
+            .dataStoreSyncState(DataStoreSyncState.NONE_REQUESTED)
             .lastSyncTime(formattedDateAndTime.toString()).build())
             .build()
     }
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/InventoryPersistenceSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/InventoryPersistenceSpec.groovy
index 46bd047ab7..638af32e2c 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/InventoryPersistenceSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/InventoryPersistenceSpec.groovy
@@ -23,11 +23,13 @@ package org.onap.cps.ncmp.api.inventory
 
 import com.fasterxml.jackson.databind.ObjectMapper
 import org.onap.cps.api.CpsDataService
+import org.onap.cps.api.CpsModuleService
 import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle
 import org.onap.cps.spi.CpsDataPersistenceService
 import org.onap.cps.spi.FetchDescendantsOption
 import org.onap.cps.spi.exceptions.DataValidationException
 import org.onap.cps.spi.model.DataNode
+import org.onap.cps.spi.model.ModuleDefinition
 import org.onap.cps.utils.JsonObjectMapper
 import spock.lang.Shared
 import spock.lang.Specification
@@ -45,10 +47,11 @@ class InventoryPersistenceSpec extends Specification {
 
     def mockCpsDataService = Mock(CpsDataService)
 
-    def mockCpsDataPersistenceService = Mock(CpsDataPersistenceService)
+    def mockCpsModuleService = Mock(CpsModuleService)
 
+    def mockCpsDataPersistenceService = Mock(CpsDataPersistenceService)
 
-    def objectUnderTest = new InventoryPersistence(spiedJsonObjectMapper, mockCpsDataService, mockCpsDataPersistenceService)
+    def objectUnderTest = new InventoryPersistence(spiedJsonObjectMapper, mockCpsDataService, mockCpsModuleService, mockCpsDataPersistenceService)
 
     def formattedDateAndTime = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ")
             .format(OffsetDateTime.of(2022, 12, 31, 20, 30, 40, 1, ZoneOffset.UTC))
@@ -178,7 +181,7 @@ class InventoryPersistenceSpec extends Specification {
             mockCpsDataPersistenceService.queryDataNodes('NCMP-Admin', 'ncmp-dmi-registry',
                 '//state/datastores/operational[@sync-state="'+'UNSYNCHRONIZED'+'"]/ancestor::cm-handles', OMIT_DESCENDANTS) >> sampleDataNodes
         when: 'get cm handles by operational sync state as UNSYNCHRONIZED is invoked'
-            def result = objectUnderTest.getCmHandlesByOperationalSyncState(SyncState.UNSYNCHRONIZED)
+            def result = objectUnderTest.getCmHandlesByOperationalSyncState(DataStoreSyncState.UNSYNCHRONIZED)
         then: 'the returned result is a list of data nodes returned by cps data service'
             assert result == sampleDataNodes
     }
@@ -197,4 +200,14 @@ class InventoryPersistenceSpec extends Specification {
             assert result.contains(cmHandleDataNode)
     }
 
+    def 'Get module definitions'() {
+        given: 'cps module service returns a collection of module definitions'
+            def moduleDefinitions = [new ModuleDefinition('moduleName','revision','content')]
+            mockCpsModuleService.getModuleDefinitionsByAnchorName('NFP-Operational','some-cmHandle-Id') >> moduleDefinitions
+        when: 'get module definitions by cmHandle is invoked'
+            def result = objectUnderTest.getModuleDefinitionsByCmHandleId('some-cmHandle-Id')
+        then: 'the returned result are the same module definitions as returned from the module service'
+            assert result == moduleDefinitions
+    }
+
 }
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/DataSyncSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/DataSyncSpec.groovy
index b062635db0..20880ca3b3 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/DataSyncSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/DataSyncSpec.groovy
@@ -25,7 +25,7 @@ import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle
 import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeState
 import org.onap.cps.ncmp.api.inventory.InventoryPersistence
-import org.onap.cps.ncmp.api.inventory.SyncState
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import spock.lang.Specification
 
 class DataSyncSpec extends Specification {
@@ -94,7 +94,7 @@ class DataSyncSpec extends Specification {
         def cmHandleState = CmHandleState.READY
         def compositeState = new CompositeState(cmHandleState: cmHandleState)
         compositeState.setDataStores(CompositeState.DataStores.builder()
-            .operationalDataStore(CompositeState.Operational.builder().syncState(SyncState.SYNCHRONIZED)
+            .operationalDataStore(CompositeState.Operational.builder().dataStoreSyncState(DataStoreSyncState.SYNCHRONIZED)
                 .build()).build())
         return compositeState
     }
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/SyncUtilsSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/SyncUtilsSpec.groovy
index dd299146f7..051172ca23 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/SyncUtilsSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/inventory/sync/SyncUtilsSpec.groovy
@@ -28,9 +28,9 @@ import org.onap.cps.ncmp.api.impl.operations.DmiOperations
 import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeState
 import org.onap.cps.ncmp.api.inventory.CompositeStateBuilder
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import org.onap.cps.ncmp.api.inventory.InventoryPersistence
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory
-import org.onap.cps.ncmp.api.inventory.SyncState
 import org.onap.cps.spi.FetchDescendantsOption
 import org.onap.cps.spi.model.DataNode
 import org.onap.cps.utils.JsonObjectMapper
@@ -118,7 +118,7 @@ class SyncUtilsSpec extends Specification{
 
     def 'Get a Cm-Handle where Operational Sync state is UnSynchronized and Cm-handle state is READY and #scenario'() {
         given: 'the inventory persistence service returns a collection of data nodes'
-            mockInventoryPersistence.getCmHandlesByOperationalSyncState(SyncState.UNSYNCHRONIZED) >> unSynchronizedDataNodes
+            mockInventoryPersistence.getCmHandlesByOperationalSyncState(DataStoreSyncState.UNSYNCHRONIZED) >> unSynchronizedDataNodes
             mockInventoryPersistence.getCmHandlesByIdAndState("cm-handle-123", CmHandleState.READY) >> readyDataNodes
         when: 'get advised cm handle is called'
             objectUnderTest.getAnUnSynchronizedReadyCmHandle()
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/YangModelCmHandleSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/YangModelCmHandleSpec.groovy
index cf9c6bbcfa..5903b12117 100644
--- a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/YangModelCmHandleSpec.groovy
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/models/YangModelCmHandleSpec.groovy
@@ -24,7 +24,7 @@ import org.onap.cps.ncmp.api.impl.yangmodels.YangModelCmHandle
 import org.onap.cps.ncmp.api.inventory.CmHandleState
 import org.onap.cps.ncmp.api.inventory.CompositeStateBuilder
 import org.onap.cps.ncmp.api.inventory.LockReasonCategory
-import org.onap.cps.ncmp.api.inventory.SyncState
+import org.onap.cps.ncmp.api.inventory.DataStoreSyncState
 import spock.lang.Specification
 
 import static org.onap.cps.ncmp.api.impl.operations.RequiredDmiService.DATA
@@ -43,7 +43,7 @@ class YangModelCmHandleSpec extends Specification {
                 .withCmHandleState(CmHandleState.LOCKED)
                 .withLastUpdatedTime('some-update-time')
                 .withLockReason(LockReasonCategory.LOCKED_MISBEHAVING, 'locked other details')
-                .withOperationalDataStores(SyncState.SYNCHRONIZED, 'some-sync-time').build()
+                .withOperationalDataStores(DataStoreSyncState.SYNCHRONIZED, 'some-sync-time').build()
             ncmpServiceCmHandle.setCompositeState(compositeState)
         when: 'it is converted to a yang model cm handle'
             def objectUnderTest = YangModelCmHandle.toYangModelCmHandle('', '', '', ncmpServiceCmHandle)
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsModulePersistenceServiceImpl.java b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsModulePersistenceServiceImpl.java
index cbeb1b76f7..806e7ccaba 100755
--- a/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsModulePersistenceServiceImpl.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/impl/CpsModulePersistenceServiceImpl.java
@@ -53,6 +53,7 @@ import org.onap.cps.spi.entities.YangResourceModuleReference;
 import org.onap.cps.spi.exceptions.AlreadyDefinedException;
 import org.onap.cps.spi.exceptions.DuplicatedYangResourceException;
 import org.onap.cps.spi.exceptions.ModelValidationException;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 import org.onap.cps.spi.repository.DataspaceRepository;
 import org.onap.cps.spi.repository.ModuleReferenceRepository;
@@ -114,12 +115,22 @@ public class CpsModulePersistenceServiceImpl implements CpsModulePersistenceServ
 
     @Override
     public Collection<ModuleReference> getYangResourceModuleReferences(final String dataspaceName,
-        final String anchorName) {
+                                                                       final String anchorName) {
         final Set<YangResourceModuleReference> yangResourceModuleReferenceList =
-            yangResourceRepository
-                .findAllModuleReferencesByDataspaceAndAnchor(dataspaceName, anchorName);
+                yangResourceRepository
+                        .findAllModuleReferencesByDataspaceAndAnchor(dataspaceName, anchorName);
         return yangResourceModuleReferenceList.stream().map(CpsModulePersistenceServiceImpl::toModuleReference)
-            .collect(Collectors.toList());
+                .collect(Collectors.toList());
+    }
+
+    @Override
+    public Collection<ModuleDefinition> getYangResourceDefinitions(final String dataspaceName,
+                                                                   final String anchorName) {
+        final Set<YangResourceEntity> yangResourceEntities =
+                yangResourceRepository
+                        .findAllModuleDefinitionsByDataspaceAndAnchor(dataspaceName, anchorName);
+        return yangResourceEntities.stream().map(CpsModulePersistenceServiceImpl::toModuleDefinition)
+                .collect(Collectors.toList());
     }
 
     @Override
@@ -343,4 +354,11 @@ public class CpsModulePersistenceServiceImpl implements CpsModulePersistenceServ
             .revision(yangResourceModuleReference.getRevision())
             .build();
     }
+
+    private static ModuleDefinition toModuleDefinition(final YangResourceEntity yangResourceEntity) {
+        return new ModuleDefinition(
+                yangResourceEntity.getModuleName(),
+                yangResourceEntity.getRevision(),
+                yangResourceEntity.getContent());
+    }
 }
diff --git a/cps-ri/src/main/java/org/onap/cps/spi/repository/YangResourceRepository.java b/cps-ri/src/main/java/org/onap/cps/spi/repository/YangResourceRepository.java
index 5e9c47429b..98306d8684 100644
--- a/cps-ri/src/main/java/org/onap/cps/spi/repository/YangResourceRepository.java
+++ b/cps-ri/src/main/java/org/onap/cps/spi/repository/YangResourceRepository.java
@@ -67,6 +67,17 @@ public interface YangResourceRepository extends JpaRepository<YangResourceEntity
     Set<YangResourceModuleReference> findAllModuleReferencesByDataspaceAndAnchor(
         @Param("dataspaceName") String dataspaceName, @Param("anchorName") String anchorName);
 
+    @Query(value = "SELECT DISTINCT yang_resource.*\n"
+            + "FROM dataspace\n"
+            + "JOIN anchor ON anchor.dataspace_id = dataspace.id\n"
+            + "JOIN schema_set ON schema_set.id = anchor.schema_set_id\n"
+            + "JOIN schema_set_yang_resources ON schema_set_yang_resources.schema_set_id = schema_set.id\n"
+            + "JOIN yang_resource ON yang_resource.id = schema_set_yang_resources.yang_resource_id\n"
+            + "WHERE dataspace.name = :dataspaceName "
+            + "AND anchor.name =:anchorName", nativeQuery = true)
+    Set<YangResourceEntity> findAllModuleDefinitionsByDataspaceAndAnchor(
+            @Param("dataspaceName") String dataspaceName, @Param("anchorName") String anchorName);
+
     @Query(value = "SELECT DISTINCT\n"
         + "yang_resource.*\n"
         + "FROM\n"
diff --git a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsModulePersistenceServiceIntegrationSpec.groovy b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsModulePersistenceServiceIntegrationSpec.groovy
index c4cfa3d50b..8a43e5125d 100644
--- a/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsModulePersistenceServiceIntegrationSpec.groovy
+++ b/cps-ri/src/test/groovy/org/onap/cps/spi/impl/CpsModulePersistenceServiceIntegrationSpec.groovy
@@ -26,9 +26,11 @@ import org.onap.cps.spi.entities.YangResourceEntity
 import org.onap.cps.spi.exceptions.AlreadyDefinedException
 import org.onap.cps.spi.exceptions.DataspaceNotFoundException
 import org.onap.cps.spi.exceptions.SchemaSetNotFoundException
+import org.onap.cps.spi.model.ModuleDefinition
 import org.onap.cps.spi.model.ModuleReference
 import org.onap.cps.spi.repository.AnchorRepository
 import org.onap.cps.spi.repository.SchemaSetRepository
+import org.onap.cps.spi.repository.YangResourceRepository
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.test.context.jdbc.Sql
 
@@ -214,6 +216,14 @@ class CpsModulePersistenceServiceIntegrationSpec extends CpsPersistenceSpecBase
             yangResourceRepository.findById(sharedResourceId).isPresent()
     }
 
+    @Sql([CLEAR_DATA, SET_DATA])
+    def 'Retrieving all yang resources module definition for the given dataspace and anchor name.'() {
+        when: 'all yang resources module definitions are retrieved for the given dataspace and anchor name'
+            def result = objectUnderTest.getYangResourceDefinitions('DATASPACE-001', 'ANCHOR3')
+        then: 'the correct module definitions (moduleName, revision and yang resource content) are returned'
+            result.sort() == [new ModuleDefinition('MODULE-NAME-004', 'REVISION-004', 'CONTENT-004')]
+    }
+
     def assertSchemaSetPersisted(expectedDataspaceName,
                                  expectedSchemaSetName,
                                  expectedYangResourceName,
diff --git a/cps-service/src/main/java/org/onap/cps/api/CpsModuleService.java b/cps-service/src/main/java/org/onap/cps/api/CpsModuleService.java
index 79d6e03d4a..5e8eb9f6cf 100644
--- a/cps-service/src/main/java/org/onap/cps/api/CpsModuleService.java
+++ b/cps-service/src/main/java/org/onap/cps/api/CpsModuleService.java
@@ -25,6 +25,7 @@ import java.util.Collection;
 import java.util.Map;
 import org.onap.cps.spi.CascadeDeleteAllowed;
 import org.onap.cps.spi.exceptions.DataInUseException;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 import org.onap.cps.spi.model.SchemaSet;
 
@@ -94,6 +95,15 @@ public interface CpsModuleService {
     Collection<ModuleReference> getYangResourcesModuleReferences(String dataspaceName, String anchorName);
 
     /**
+     * Retrieve module definitions for the given dataspace name and anchor name.
+     *
+     * @param dataspaceName dataspace name
+     * @param anchorName    anchor name
+     * @return a collection of module definitions (moduleName, revision, yang resource content)
+     */
+    Collection<ModuleDefinition> getModuleDefinitionsByAnchorName(String dataspaceName, String anchorName);
+
+    /**
      * Identify previously unknown Yang Resource module references.
      * The system will ignore the namespace of all module references.
      *
diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/CpsModuleServiceImpl.java b/cps-service/src/main/java/org/onap/cps/api/impl/CpsModuleServiceImpl.java
index db8a81f276..ff725a617f 100644
--- a/cps-service/src/main/java/org/onap/cps/api/impl/CpsModuleServiceImpl.java
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/CpsModuleServiceImpl.java
@@ -31,6 +31,7 @@ import org.onap.cps.spi.CascadeDeleteAllowed;
 import org.onap.cps.spi.CpsModulePersistenceService;
 import org.onap.cps.spi.exceptions.SchemaSetInUseException;
 import org.onap.cps.spi.model.Anchor;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 import org.onap.cps.spi.model.SchemaSet;
 import org.onap.cps.utils.CpsValidator;
@@ -106,6 +107,13 @@ public class CpsModuleServiceImpl implements CpsModuleService {
     }
 
     @Override
+    public Collection<ModuleDefinition> getModuleDefinitionsByAnchorName(final String dataspaceName,
+                                                                         final String anchorName) {
+        CpsValidator.validateNameCharacters(dataspaceName, anchorName);
+        return cpsModulePersistenceService.getYangResourceDefinitions(dataspaceName, anchorName);
+    }
+
+    @Override
     public Collection<ModuleReference> identifyNewModuleReferences(
         final Collection<ModuleReference> moduleReferencesToCheck) {
         return cpsModulePersistenceService.identifyNewModuleReferences(moduleReferencesToCheck);
diff --git a/cps-service/src/main/java/org/onap/cps/spi/CpsModulePersistenceService.java b/cps-service/src/main/java/org/onap/cps/spi/CpsModulePersistenceService.java
index 0e90e84f1e..db2cb60f34 100755
--- a/cps-service/src/main/java/org/onap/cps/spi/CpsModulePersistenceService.java
+++ b/cps-service/src/main/java/org/onap/cps/spi/CpsModulePersistenceService.java
@@ -23,6 +23,7 @@ package org.onap.cps.spi;
 
 import java.util.Collection;
 import java.util.Map;
+import org.onap.cps.spi.model.ModuleDefinition;
 import org.onap.cps.spi.model.ModuleReference;
 
 /**
@@ -89,11 +90,20 @@ public interface CpsModulePersistenceService {
      *
      * @param dataspaceName dataspace name
      * @param anchorName    anchor name
-     * @return a collection of module names and revisions
+     * @return a collection of module reference (moduleName and revision)
      */
     Collection<ModuleReference> getYangResourceModuleReferences(String dataspaceName, String anchorName);
 
     /**
+     * Get YANG resource definitions for the given anchor name and dataspace name.
+     *
+     * @param dataspaceName dataspace name
+     * @param anchorName    anchor name
+     * @return a collection of module definitions (moduleName, revision and yang resource content)
+     */
+    Collection<ModuleDefinition> getYangResourceDefinitions(String dataspaceName, String anchorName);
+
+    /**
      * Remove unused Yang Resource Modules.
      */
     void deleteUnusedYangResourceModules();
diff --git a/cps-service/src/main/java/org/onap/cps/spi/model/ModuleDefinition.java b/cps-service/src/main/java/org/onap/cps/spi/model/ModuleDefinition.java
new file mode 100644
index 0000000000..d7a5b38dcc
--- /dev/null
+++ b/cps-service/src/main/java/org/onap/cps/spi/model/ModuleDefinition.java
@@ -0,0 +1,37 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2022 Nordix Foundation
+ *  ================================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.spi.model;
+
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+public class ModuleDefinition extends ModuleReference {
+
+    private static final long serialVersionUID = -6591435720836327732L;
+    private final String content;
+
+    public ModuleDefinition(final String moduleName, final String revision, final String content) {
+        super(moduleName, revision);
+        this.content = content;
+    }
+}
\ No newline at end of file
diff --git a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModuleServiceImplSpec.groovy b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModuleServiceImplSpec.groovy
index 95d731478f..429de7d51b 100644
--- a/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModuleServiceImplSpec.groovy
+++ b/cps-service/src/test/groovy/org/onap/cps/api/impl/CpsModuleServiceImplSpec.groovy
@@ -24,7 +24,6 @@ package org.onap.cps.api.impl
 
 import org.onap.cps.TestUtils
 import org.onap.cps.api.CpsAdminService
-import org.onap.cps.spi.CascadeDeleteAllowed
 import org.onap.cps.spi.CpsModulePersistenceService
 import org.onap.cps.spi.exceptions.DataValidationException
 import org.onap.cps.spi.exceptions.ModelValidationException
@@ -243,4 +242,11 @@ class CpsModuleServiceImplSpec extends Specification {
         then: 'cps module persistence service is called with module references to check'
             1 * mockCpsModulePersistenceService.identifyNewModuleReferences(moduleReferencesToCheck);
     }
+
+    def 'Getting module definitions.'() {
+        when: 'get module definitions method is called with a valid dataspace and anchor name'
+            objectUnderTest.getModuleDefinitionsByAnchorName('some-dataspace-name', 'some-anchor-name')
+        then: 'CPS module persistence service is invoked the correct number of times'
+            1 * mockCpsModulePersistenceService.getYangResourceDefinitions('some-dataspace-name', 'some-anchor-name')
+    }
 }