Replacing ModelMapper with MapStruct

- Removed Model Mapper from pom files
- Replaced ModelMapper with MapStruct
- Added Tests for MapStruct
- Changed mapstruct annotations for individual variables to be null safe rather than all variables
- Excluded generated code from code coverage
- Set ModuleReferences input to required for SchemaSet so that ModuleReferences list set to empty list rather than null

Issue-ID: CPS-127
Signed-off-by: lukegleeson <luke.gleeson@est.tech>
Change-Id: I43f874aea79f58dda5526c6fdead27d8474d90af

7 files changed, 63 insertions, 28 deletions

diff --git a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/RestInputMapper.java b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java
index a1d046ece9..4c8fafea5f 100644
--- a/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/RestInputMapper.java
+++ b/cps-ncmp-rest/src/main/java/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapper.java
@@ -22,17 +22,27 @@ package org.onap.cps.ncmp.rest.controller;
 
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
-import org.mapstruct.NullValueMappingStrategy;
+import org.mapstruct.NullValueCheckStrategy;
 import org.mapstruct.NullValuePropertyMappingStrategy;
 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.RestModuleReference;
+import org.onap.cps.spi.model.ModuleReference;
 
-@Mapper(componentModel = "spring", nullValueMappingStrategy = NullValueMappingStrategy.RETURN_DEFAULT,
-    nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.SET_TO_DEFAULT)
-public interface RestInputMapper {
+@Mapper(componentModel = "spring")
+public interface NcmpRestInputMapper {
 
+    @Mapping(source = "createdCmHandles", target = "createdCmHandles",
+        nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS,
+        nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.SET_TO_DEFAULT)
+    @Mapping(source = "updatedCmHandles", target = "updatedCmHandles",
+        nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS,
+        nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.SET_TO_DEFAULT)
+    @Mapping(source = "removedCmHandles", target = "removedCmHandles",
+        nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS,
+        nullValuePropertyMappingStrategy = NullValuePropertyMappingStrategy.SET_TO_DEFAULT)
     DmiPluginRegistration toDmiPluginRegistration(final RestDmiPluginRegistration restDmiPluginRegistration);
 
     @Mapping(source = "cmHandle", target = "cmHandleID")
@@ -40,4 +50,6 @@ public interface RestInputMapper {
     @Mapping(source = "publicCmHandleProperties", target = "publicProperties")
     NcmpServiceCmHandle toNcmpServiceCmHandle(final RestInputCmHandle restInputCmHandle);
 
-}
+    RestModuleReference toRestModuleReference(
+        final ModuleReference moduleReference);
+}
\ 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 2a336d52b9..01b892218d 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
@@ -37,7 +37,6 @@ import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.modelmapper.ModelMapper;
 import org.onap.cps.ncmp.api.NetworkCmProxyDataService;
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle;
 import org.onap.cps.ncmp.rest.api.NetworkCmProxyApi;
@@ -49,7 +48,7 @@ import org.onap.cps.ncmp.rest.model.ConditionProperties;
 import org.onap.cps.ncmp.rest.model.Conditions;
 import org.onap.cps.ncmp.rest.model.ModuleNameAsJsonObject;
 import org.onap.cps.ncmp.rest.model.ModuleNamesAsJsonArray;
-import org.onap.cps.ncmp.rest.model.ModuleReference;
+import org.onap.cps.ncmp.rest.model.RestModuleReference;
 import org.onap.cps.ncmp.rest.model.RestOutputCmHandle;
 import org.onap.cps.utils.JsonObjectMapper;
 import org.springframework.http.HttpStatus;
@@ -65,9 +64,9 @@ public class NetworkCmProxyController implements NetworkCmProxyApi {
 
     private static final String NO_BODY = null;
 
-    private final ModelMapper modelMapper;
     private final NetworkCmProxyDataService networkCmProxyDataService;
     private final JsonObjectMapper jsonObjectMapper;
+    private final NcmpRestInputMapper ncmpRestInputMapper;
 
     /**
      * Get resource data from operational datastore.
@@ -207,12 +206,12 @@ public class NetworkCmProxyController implements NetworkCmProxyApi {
      * @param cmHandle the cm handle
      * @return module references for cm handle. Namespace will be always blank because restConf does not include this.
      */
-    public ResponseEntity<List<ModuleReference>> getModuleReferencesByCmHandle(final String cmHandle) {
-        final List<ModuleReference> moduleReferences =
+    public ResponseEntity<List<RestModuleReference>> getModuleReferencesByCmHandle(final String cmHandle) {
+        final List<RestModuleReference> restModuleReferences =
             networkCmProxyDataService.getYangResourcesModuleReferences(cmHandle).stream()
-            .map(moduleReference -> modelMapper.map(moduleReference, ModuleReference.class))
+            .map(ncmpRestInputMapper::toRestModuleReference)
                 .collect(Collectors.toList());
-        return new ResponseEntity<>(moduleReferences, HttpStatus.OK);
+        return new ResponseEntity<>(restModuleReferences, HttpStatus.OK);
     }
 
     private Collection<String> processConditions(final List<ConditionProperties> conditionProperties) {
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 36991952c8..c9d26f2a54 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
@@ -37,7 +37,7 @@ import org.springframework.web.bind.annotation.RestController;
 public class NetworkCmProxyInventoryController implements NetworkCmProxyInventoryApi {
 
     private final NetworkCmProxyDataService networkCmProxyDataService;
-    private final RestInputMapper restInputMapper;
+    private final NcmpRestInputMapper ncmpRestInputMapper;
 
     /**
      * Update DMI Plugin Registration (used for first registration also).
@@ -47,7 +47,7 @@ public class NetworkCmProxyInventoryController implements NetworkCmProxyInventor
     public ResponseEntity<Void> updateDmiPluginRegistration(
         final @Valid RestDmiPluginRegistration restDmiPluginRegistration) {
         networkCmProxyDataService.updateDmiRegistrationAndSyncModule(
-            restInputMapper.toDmiPluginRegistration(restDmiPluginRegistration));
+            ncmpRestInputMapper.toDmiPluginRegistration(restDmiPluginRegistration));
         return new ResponseEntity<>(HttpStatus.NO_CONTENT);
     }
 
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/RestInputMapperSpec.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy
index ed938810c0..3d54a0b089 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/RestInputMapperSpec.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/controller/NcmpRestInputMapperSpec.groovy
@@ -21,13 +21,16 @@
 package org.onap.cps.ncmp.rest.controller
 
 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.RestModuleReference
+import org.onap.cps.spi.model.ModuleReference
 import spock.lang.Specification
 
-class RestInputMapperSpec extends Specification {
+class NcmpRestInputMapperSpec extends Specification {
 
-    def objectUnderTest = Mappers.getMapper(RestInputMapper.class)
+    def objectUnderTest = Mappers.getMapper(NcmpRestInputMapper.class)
 
     def 'Convert a created REST CM Handle Input to an NCMP Service CM Handle with #scenario'() {
         given: 'a rest cm handle input'
@@ -61,4 +64,27 @@ class RestInputMapperSpec extends Specification {
             assert result.removedCmHandles == []
     }
 
+    def 'Handling non-empty dmi registration'() {
+        given: 'a rest cm handle input with cm handles'
+            def restDmiPluginRegistration = new RestDmiPluginRegistration(
+                createdCmHandles: [new RestInputCmHandle()],
+                updatedCmHandles: [new RestInputCmHandle()],
+                removedCmHandles: ["some-cmHandle"]
+            )
+        when: 'to dmi plugin registration is called'
+            def result  = objectUnderTest.toDmiPluginRegistration(restDmiPluginRegistration)
+        then: 'Lists contain values'
+            assert result.createdCmHandles[0].class == NcmpServiceCmHandle.class
+            assert result.updatedCmHandles[0].class == NcmpServiceCmHandle.class
+            assert result.removedCmHandles == ["some-cmHandle"]
+    }
+
+    def 'Convert a ModuleReference to a RestModuleReference'() {
+        given: 'a ModuleReference'
+            def moduleReference = new ModuleReference()
+        when: 'toRestModuleReference is called'
+            def result = objectUnderTest.toRestModuleReference(moduleReference)
+        then: 'the result is of the correct class RestModuleReference'
+            result.class == RestModuleReference.class
+    }
 }
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 c99771443a..a506e6ae02 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
@@ -22,7 +22,7 @@
 
 package org.onap.cps.ncmp.rest.controller
 
-
+import org.mapstruct.factory.Mappers
 import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
 
 import static org.onap.cps.ncmp.api.impl.operations.DmiRequestBody.OperationEnum.PATCH
@@ -36,7 +36,6 @@ import static org.onap.cps.ncmp.api.impl.operations.DmiRequestBody.OperationEnum
 import static org.onap.cps.ncmp.api.impl.operations.DmiRequestBody.OperationEnum.DELETE
 
 import com.fasterxml.jackson.databind.ObjectMapper
-import org.modelmapper.ModelMapper
 import org.onap.cps.TestUtils
 import org.onap.cps.spi.model.ModuleReference
 import org.onap.cps.utils.JsonObjectMapper
@@ -60,10 +59,10 @@ class NetworkCmProxyControllerSpec extends Specification {
     NetworkCmProxyDataService mockNetworkCmProxyDataService = Mock()
 
     @SpringBean
-    ModelMapper modelMapper = new ModelMapper()
+    JsonObjectMapper jsonObjectMapper = new JsonObjectMapper(new ObjectMapper())
 
     @SpringBean
-    JsonObjectMapper jsonObjectMapper = new JsonObjectMapper(new ObjectMapper())
+    NcmpRestInputMapper ncmpRestInputMapper = Mappers.getMapper(NcmpRestInputMapper)
 
     @Value('${rest.api.ncmp-base-path}/v1')
     def ncmpBasePathV1
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 079554a22d..9b1c2e87c0 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
@@ -49,7 +49,7 @@ class NetworkCmProxyInventoryControllerSpec extends Specification {
     NetworkCmProxyDataService mockNetworkCmProxyDataService = Mock()
 
     @SpringBean
-    RestInputMapper restInputMapper = Mock()
+    NcmpRestInputMapper ncmpRestInputMapper = Mock()
 
     DmiPluginRegistration mockDmiPluginRegistration = Mock()
 
@@ -64,7 +64,7 @@ class NetworkCmProxyInventoryControllerSpec extends Specification {
         and: 'the expected rest input as an object'
             def expectedRestDmiPluginRegistration = jsonObjectMapper.convertJsonString(jsonData, RestDmiPluginRegistration)
         and: 'the converter returns a dmi registration (only for the expected input object)'
-            restInputMapper.toDmiPluginRegistration(expectedRestDmiPluginRegistration) >> mockDmiPluginRegistration
+            ncmpRestInputMapper.toDmiPluginRegistration(expectedRestDmiPluginRegistration) >> mockDmiPluginRegistration
         when: 'post request is performed & registration is called with correct DMI plugin information'
             def response = mvc.perform(
                 post("$ncmpBasePathV1/ch")
diff --git a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/exceptions/NetworkCmProxyRestExceptionHandlerSpec.groovy b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/exceptions/NetworkCmProxyRestExceptionHandlerSpec.groovy
index 8004328bc2..3c39a3307e 100644
--- a/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/exceptions/NetworkCmProxyRestExceptionHandlerSpec.groovy
+++ b/cps-ncmp-rest/src/test/groovy/org/onap/cps/ncmp/rest/exceptions/NetworkCmProxyRestExceptionHandlerSpec.groovy
@@ -21,13 +21,15 @@
 
 package org.onap.cps.ncmp.rest.exceptions
 
+import com.fasterxml.jackson.databind.ObjectMapper
 import groovy.json.JsonSlurper
-import org.modelmapper.ModelMapper
+import org.mapstruct.factory.Mappers
 import org.onap.cps.TestUtils
 import org.onap.cps.ncmp.api.NetworkCmProxyDataService
 import org.onap.cps.ncmp.api.impl.exception.DmiRequestException
 import org.onap.cps.ncmp.api.impl.exception.ServerNcmpException
-import org.onap.cps.ncmp.rest.controller.RestInputMapper
+import org.onap.cps.ncmp.api.models.NcmpServiceCmHandle
+import org.onap.cps.ncmp.rest.controller.NcmpRestInputMapper
 import org.onap.cps.spi.exceptions.CpsException
 import org.onap.cps.spi.exceptions.DataNodeNotFoundException
 import org.onap.cps.spi.exceptions.DataValidationException
@@ -58,13 +60,10 @@ class NetworkCmProxyRestExceptionHandlerSpec extends Specification {
     NetworkCmProxyDataService mockNetworkCmProxyDataService = Mock()
 
     @SpringBean
-    ModelMapper modelMapper = Stub()
-
-    @SpringBean
     JsonObjectMapper jsonObjectMapper = Stub()
 
     @SpringBean
-    RestInputMapper restInputMapper = Mock()
+    NcmpRestInputMapper ncmpRestInputMapper = Mappers.getMapper(NcmpRestInputMapper)
 
     @Value('${rest.api.ncmp-base-path}')
     def basePathNcmp