Dynamically load CSAR validators for models

Change-Id: I88ece0936e8a2814ef13dfa23eecda56de3dc6fe
Issue-ID: SDC-3683
Signed-off-by: andre.schmid <andre.schmid@est.tech>

11 files changed, 215 insertions, 40 deletions

diff --git a/integration-tests/src/test/java/org/onap/sdc/backend/ci/tests/validation/pmdictionary/CsarValidationTest.java b/integration-tests/src/test/java/org/onap/sdc/backend/ci/tests/validation/pmdictionary/CsarValidationTest.java
index 9500c9b378..7a4ad4da1e 100644
--- a/integration-tests/src/test/java/org/onap/sdc/backend/ci/tests/validation/pmdictionary/CsarValidationTest.java
+++ b/integration-tests/src/test/java/org/onap/sdc/backend/ci/tests/validation/pmdictionary/CsarValidationTest.java
@@ -39,6 +39,8 @@ import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validatio
 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.ValidatorFactory;
 
 class CsarValidationTest {
+    
+    private final ValidatorFactory validatorFactory = new ValidatorFactory();
 
     @Test
     void shouldNotReturnErrors_whenPnfCsarIsValid() throws OnboardPackageException, IOException {
@@ -46,7 +48,7 @@ class CsarValidationTest {
         FileContentHandler pnfFileContent = CsarLoader.load("validPnfCompliantWithSOL004.csar", "/Files/PNFs/validation/pmdictionary/validPnfCompliantWithSOL004.csar");
 
         //when
-        final ValidationResult validationResult = ValidatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
+        final ValidationResult validationResult = validatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
 
         //then
         assertThat(validationResult.getErrors(), is(empty()));
@@ -59,7 +61,7 @@ class CsarValidationTest {
         FileContentHandler pnfFileContent = CsarLoader.load("invalidPnfCompliantWithSOL004.csar", "/Files/PNFs/validation/pmdictionary/invalidPnfCompliantWithSOL004.csar");
 
         //when
-        final ValidationResult validationResult = ValidatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
+        final ValidationResult validationResult = validatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
         List<ErrorMessage> errorList = validationResult.getErrors();
 
         //then
@@ -77,7 +79,7 @@ class CsarValidationTest {
         );
 
         //when
-        final ValidationResult validationResult = ValidatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
+        final ValidationResult validationResult = validatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
 
         //then
         assertThat(validationResult.isValid(), is(true));
@@ -94,7 +96,7 @@ class CsarValidationTest {
         );
 
         //when
-        final ValidationResult validationResult = ValidatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
+        final ValidationResult validationResult = validatorFactory.getValidator(pnfFileContent).validate(pnfFileContent);
         List<ErrorMessage> errorList = validationResult.getErrors();
 
         //then
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/vendor-software-products-rest/vendor-software-products-rest-services/src/main/java/org/openecomp/sdcrests/vsp/rest/services/OrchestrationTemplateCandidateImpl.java b/openecomp-be/api/openecomp-sdc-rest-webapp/vendor-software-products-rest/vendor-software-products-rest-services/src/main/java/org/openecomp/sdcrests/vsp/rest/services/OrchestrationTemplateCandidateImpl.java
index eb78bf0059..23930ed640 100644
--- a/openecomp-be/api/openecomp-sdc-rest-webapp/vendor-software-products-rest/vendor-software-products-rest-services/src/main/java/org/openecomp/sdcrests/vsp/rest/services/OrchestrationTemplateCandidateImpl.java
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/vendor-software-products-rest/vendor-software-products-rest-services/src/main/java/org/openecomp/sdcrests/vsp/rest/services/OrchestrationTemplateCandidateImpl.java
@@ -152,7 +152,9 @@ public class OrchestrationTemplateCandidateImpl implements OrchestrationTemplate
     }
 
     @Override
-    public Response upload(final String vspId, final String versionId, final Attachment fileToUpload, final String user) {
+    public Response upload(String vspId, String versionId, final Attachment fileToUpload, final String user) {
+        vspId = ValidationUtils.sanitizeInputString(vspId);
+        versionId = ValidationUtils.sanitizeInputString(versionId);
         final byte[] fileToUploadBytes;
         final var filename = ValidationUtils.sanitizeInputString(fileToUpload.getDataHandler().getName());
         ArtifactInfo artifactInfo = null;
@@ -193,8 +195,8 @@ public class OrchestrationTemplateCandidateImpl implements OrchestrationTemplate
             return Response.ok(uploadFileResponseDto)
                 .build();
         }
-        final var version = new Version(ValidationUtils.sanitizeInputString(versionId));
-        final var vspDetails = new VspDetails(ValidationUtils.sanitizeInputString(vspId), version);
+        final var version = new Version(versionId);
+        final var vspDetails = vendorSoftwareProductManager.getVsp(vspId, version);
         return processOnboardPackage(onboardPackageInfo, vspDetails, errorMessages);
     }
 
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/BaseOrchestrationTemplateHandler.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/BaseOrchestrationTemplateHandler.java
index 6e810eefbd..ea36e5389f 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/BaseOrchestrationTemplateHandler.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/BaseOrchestrationTemplateHandler.java
@@ -50,7 +50,7 @@ public abstract class BaseOrchestrationTemplateHandler implements OrchestrationT
         if (isInvalidRawZipData(onboardPackage.getFileExtension(), uploadFileResponse, fileContentByteArray, candidateService)) {
             return uploadFileResponse;
         }
-        final UploadFileResponse validateResponse = validate(onboardPackageInfo);
+        final UploadFileResponse validateResponse = validate(vspDetails, onboardPackageInfo);
         if (!MapUtils.isEmpty(validateResponse.getErrors())) {
             uploadFileResponse.addStructureErrors(validateResponse.getErrors());
             return uploadFileResponse;
@@ -87,7 +87,7 @@ public abstract class BaseOrchestrationTemplateHandler implements OrchestrationT
         return false;
     }
 
-    public abstract UploadFileResponse validate(final OnboardPackageInfo onboardPackageInfo);
+    public abstract UploadFileResponse validate(final VspDetails vspDetails, final OnboardPackageInfo onboardPackageInfo);
 
     protected abstract OnboardingTypesEnum getHandlerType();
 }
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateCSARHandler.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateCSARHandler.java
index 3005a2df2c..5a3518135a 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateCSARHandler.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateCSARHandler.java
@@ -22,6 +22,9 @@ package org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration;
 import static org.openecomp.core.validation.errors.ErrorMessagesFormatBuilder.getErrorWithParameters;
 
 import java.io.IOException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import org.apache.commons.collections4.CollectionUtils;
@@ -36,7 +39,6 @@ import org.openecomp.sdc.datatypes.error.ErrorMessage;
 import org.openecomp.sdc.vendorsoftwareproduct.dao.type.OrchestrationTemplateCandidateData;
 import org.openecomp.sdc.vendorsoftwareproduct.dao.type.VspDetails;
 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.CsarSecurityValidator;
-import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.ValidationResult;
 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.Validator;
 import org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.ValidatorFactory;
 import org.openecomp.sdc.vendorsoftwareproduct.security.SecurityManagerException;
@@ -48,8 +50,14 @@ import org.openecomp.sdc.vendorsoftwareproduct.types.UploadFileResponse;
 
 public class OrchestrationTemplateCSARHandler extends BaseOrchestrationTemplateHandler {
 
+    private final ValidatorFactory validatorFactory;
+
+    public OrchestrationTemplateCSARHandler() {
+        this.validatorFactory = new ValidatorFactory();
+    }
+
     @Override
-    public UploadFileResponse validate(final OnboardPackageInfo onboardPackageInfo) {
+    public UploadFileResponse validate(final VspDetails vspDetails, final OnboardPackageInfo onboardPackageInfo) {
         final UploadFileResponse uploadFileResponse = new UploadFileResponse();
         if (onboardPackageInfo.getPackageType() == OnboardingTypesEnum.SIGNED_CSAR) {
             final OnboardSignedPackage originalOnboardPackage = (OnboardSignedPackage) onboardPackageInfo.getOriginalOnboardPackage();
@@ -66,22 +74,57 @@ public class OrchestrationTemplateCSARHandler extends BaseOrchestrationTemplateH
         final OnboardPackage onboardPackage = onboardPackageInfo.getOnboardPackage();
         final FileContentHandler fileContentHandler = onboardPackage.getFileContentHandler();
         try {
-            final Validator validator = ValidatorFactory.getValidator(fileContentHandler);
-            final ValidationResult validationResult = validator.validate(fileContentHandler);
-            if (CollectionUtils.isNotEmpty(validationResult.getErrors())) {
-                uploadFileResponse.addStructureErrors(Map.of(SdcCommon.UPLOAD_FILE, validationResult.getErrors()));
+            final List<String> modelIdList = vspDetails.getModelIdList();
+            if (CollectionUtils.isEmpty(modelIdList)) {
+                final Map<String, List<ErrorMessage>> errorResponseMap = validateSdcModel(fileContentHandler);
+                if (!errorResponseMap.isEmpty()) {
+                    uploadFileResponse.addStructureErrors(errorResponseMap);
+                }
+            } else {
+                final Map<String, List<ErrorMessage>> errorResponseMap = validateModels(modelIdList, fileContentHandler);
+                if (!errorResponseMap.isEmpty()) {
+                    uploadFileResponse.addStructureErrors(errorResponseMap);
+                }
             }
-        } catch (IOException exception) {
+        } catch (final IOException exception) {
             logger.error(exception.getMessage(), exception);
             uploadFileResponse
                 .addStructureError(SdcCommon.UPLOAD_FILE, new ErrorMessage(ErrorLevel.ERROR, Messages.INVALID_CSAR_FILE.getErrorMessage()));
-        } catch (CoreException coreException) {
+        } catch (final CoreException coreException) {
             logger.error(coreException.getMessage(), coreException);
             uploadFileResponse.addStructureError(SdcCommon.UPLOAD_FILE, new ErrorMessage(ErrorLevel.ERROR, coreException.getMessage()));
         }
         return uploadFileResponse;
     }
 
+    private Map<String, List<ErrorMessage>> validateModels(final List<String> modelIdList, final FileContentHandler fileContentHandler) {
+        final Map<String, List<ErrorMessage>> errorResponseMap = new HashMap<>();
+        modelIdList.forEach(model -> {
+            final List<Validator> validators = validatorFactory.getValidators(model);
+            validators.forEach(validator -> {
+                final var validationResult = validator.validate(fileContentHandler);
+                if (CollectionUtils.isNotEmpty(validationResult.getErrors())) {
+                    if (errorResponseMap.containsKey(SdcCommon.UPLOAD_FILE)) {
+                        errorResponseMap.get(SdcCommon.UPLOAD_FILE).addAll(validationResult.getErrors());
+                    } else {
+                        errorResponseMap.put(SdcCommon.UPLOAD_FILE, validationResult.getErrors());
+                    }
+                }
+            });
+        });
+        return errorResponseMap;
+    }
+
+    private Map<String, List<ErrorMessage>> validateSdcModel(final FileContentHandler fileContentHandler) throws IOException {
+        final var validator = validatorFactory.getValidator(fileContentHandler);
+        final var validationResult = validator.validate(fileContentHandler);
+        if (CollectionUtils.isNotEmpty(validationResult.getErrors())) {
+            return Map.of(SdcCommon.UPLOAD_FILE, validationResult.getErrors());
+        }
+
+        return Collections.emptyMap();
+    }
+
     private Optional<UploadFileResponse> validatePackageSecurity(final OnboardSignedPackage signedPackage, final ArtifactInfo artifactInfo) {
         final UploadFileResponse uploadFileResponseDto = new UploadFileResponse();
         try {
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateZipHandler.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateZipHandler.java
index e534eded02..c4d7053870 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateZipHandler.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/OrchestrationTemplateZipHandler.java
@@ -37,7 +37,7 @@ import org.openecomp.sdc.vendorsoftwareproduct.types.UploadFileResponse;
 public class OrchestrationTemplateZipHandler extends BaseOrchestrationTemplateHandler {
 
     @Override
-    public UploadFileResponse validate(final OnboardPackageInfo onboardPackageInfo) {
+    public UploadFileResponse validate(final VspDetails vspDetails, final OnboardPackageInfo onboardPackageInfo) {
         final UploadFileResponse uploadFileResponse = new UploadFileResponse();
         final OnboardPackage onboardPackage = onboardPackageInfo.getOnboardPackage();
         OrchestrationUtil.getFileContentMap(OnboardingTypesEnum.ZIP, uploadFileResponse, onboardPackage.getFileContent().array());
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactory.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactory.java
index 27a1852644..91d2705693 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactory.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/main/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactory.java
@@ -22,13 +22,21 @@ package org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validati
 import static org.openecomp.sdc.tosca.csar.CSARConstants.ETSI_VERSION_2_7_1;
 
 import java.io.IOException;
+import java.util.Comparator;
+import java.util.List;
+import java.util.ServiceLoader;
+import java.util.ServiceLoader.Provider;
+import java.util.stream.Collectors;
 import org.openecomp.core.utilities.file.FileContentHandler;
 import org.openecomp.sdc.vendorsoftwareproduct.services.impl.etsi.ETSIService;
 import org.openecomp.sdc.vendorsoftwareproduct.services.impl.etsi.ETSIServiceImpl;
 
 public class ValidatorFactory {
 
-    private ValidatorFactory() {
+    private final ServiceLoader<Validator> validatorLoader;
+
+    public ValidatorFactory() {
+        this.validatorLoader = ServiceLoader.load(Validator.class);
     }
 
     /**
@@ -38,7 +46,7 @@ public class ValidatorFactory {
      * @return Validator based on the contents of the csar package provided
      * @throws IOException when metafile is invalid
      */
-    public static Validator getValidator(final FileContentHandler fileContentHandler) throws IOException {
+    public Validator getValidator(final FileContentHandler fileContentHandler) throws IOException {
         final ETSIService etsiService = new ETSIServiceImpl(null);
         if (!etsiService.isSol004WithToscaMetaDirectory(fileContentHandler)) {
             return new ONAPCsarValidator();
@@ -51,4 +59,18 @@ public class ValidatorFactory {
         }
         return new SOL004MetaDirectoryValidator();
     }
+
+    /**
+     * Get validators based on the given model.
+     *
+     * @param model the model
+     * @return a list containing all validators for the given model, empty otherwise.
+     */
+    public List<Validator> getValidators(final String model) {
+        return validatorLoader.stream()
+            .map(Provider::get)
+            .filter(validator -> validator.appliesTo(model))
+            .sorted(Comparator.comparingInt(Validator::getOrder))
+            .collect(Collectors.toList());
+    }
 }
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/SOL004Version4MetaDirectoryValidatorTest.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/SOL004Version4MetaDirectoryValidatorTest.java
index 9587f59e72..0f6f63bcbf 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/SOL004Version4MetaDirectoryValidatorTest.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/SOL004Version4MetaDirectoryValidatorTest.java
@@ -41,6 +41,8 @@ import org.openecomp.sdc.vendorsoftwareproduct.security.SecurityManager;
 
 class SOL004Version4MetaDirectoryValidatorTest extends SOL004MetaDirectoryValidatorTest {
 
+    private final ValidatorFactory validatorFactory = new ValidatorFactory();
+
     @Override
     public SOL004MetaDirectoryValidator getSOL004MetaDirectoryValidator() {
         return new SOL004Version4MetaDirectoryValidator();
@@ -107,7 +109,7 @@ class SOL004Version4MetaDirectoryValidatorTest extends SOL004MetaDirectoryValida
         manifestBuilder.withSource(TOSCA_MANIFEST_FILEPATH);
         handler.addFile(TOSCA_MANIFEST_FILEPATH, manifestBuilder.build().getBytes(StandardCharsets.UTF_8));
 
-        final Validator validator = ValidatorFactory.getValidator(handler);
+        final Validator validator = validatorFactory.getValidator(handler);
         final ValidationResult validationResult = validator.validate(handler);
         assertTrue(validationResult.getErrors().isEmpty());
     }
@@ -137,7 +139,7 @@ class SOL004Version4MetaDirectoryValidatorTest extends SOL004MetaDirectoryValida
         manifestBuilder.withSource(TOSCA_MANIFEST_FILEPATH);
         handler.addFile(TOSCA_MANIFEST_FILEPATH, manifestBuilder.build().getBytes(StandardCharsets.UTF_8));
 
-        final Validator validator = ValidatorFactory.getValidator(handler);
+        final Validator validator = validatorFactory.getValidator(handler);
         final ValidationResult validationResult = validator.validate(handler);
         assertExpectedErrors("Non-MANO file does not exist", validationResult.getErrors(), 1);
     }
@@ -167,7 +169,7 @@ class SOL004Version4MetaDirectoryValidatorTest extends SOL004MetaDirectoryValida
         manifestBuilder.withSource(TOSCA_MANIFEST_FILEPATH);
         handler.addFile(TOSCA_MANIFEST_FILEPATH, manifestBuilder.build().getBytes(StandardCharsets.UTF_8));
 
-        final Validator validator = ValidatorFactory.getValidator(handler);
+        final Validator validator = validatorFactory.getValidator(handler);
         final ValidationResult validationResult = validator.validate(handler);
         assertExpectedErrors("Manifest with non existent source files", validationResult.getErrors(), 1);
     }
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator1.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator1.java
new file mode 100644
index 0000000000..bf76d2ad73
--- /dev/null
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator1.java
@@ -0,0 +1,42 @@
+/*
+ * -
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation;
+
+import org.openecomp.core.utilities.file.FileContentHandler;
+
+public class TestModelValidator1 implements Validator {
+
+    @Override
+    public ValidationResult validate(FileContentHandler csarContent) {
+        return new CsarValidationResult();
+    }
+
+    @Override
+    public boolean appliesTo(String model) {
+        return "test".equals(model);
+    }
+
+    @Override
+    public int getOrder() {
+        return 0;
+    }
+}
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator2.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator2.java
new file mode 100644
index 0000000000..e38fe907c4
--- /dev/null
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/TestModelValidator2.java
@@ -0,0 +1,42 @@
+/*
+ * -
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 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.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation;
+
+import org.openecomp.core.utilities.file.FileContentHandler;
+
+public class TestModelValidator2 implements Validator {
+
+    @Override
+    public ValidationResult validate(FileContentHandler csarContent) {
+        return new CsarValidationResult();
+    }
+
+    @Override
+    public boolean appliesTo(String model) {
+        return "test".equals(model);
+    }
+
+    @Override
+    public int getOrder() {
+        return 1;
+    }
+}
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactoryTest.java b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactoryTest.java
index f2dde27365..9d66d627f9 100644
--- a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactoryTest.java
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/java/org/openecomp/sdc/vendorsoftwareproduct/impl/orchestration/csar/validation/ValidatorFactoryTest.java
@@ -20,7 +20,10 @@
 
 package org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation;
 
-import static org.junit.Assert.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.openecomp.sdc.be.test.util.TestResourcesHandler.getResourceBytesOrFail;
 import static org.openecomp.sdc.tosca.csar.ManifestTokenType.ATTRIBUTE_VALUE_SEPARATOR;
 import static org.openecomp.sdc.tosca.csar.ToscaMetaEntry.CREATED_BY_ENTRY;
@@ -36,17 +39,20 @@ import static org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.va
 
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
-import org.junit.Before;
-import org.junit.Test;
+import java.util.List;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 import org.openecomp.core.utilities.file.FileContentHandler;
 
-public class ValidatorFactoryTest {
+class ValidatorFactoryTest {
 
     private String metaFile;
     private FileContentHandler handler;
+    private ValidatorFactory validatorFactory;
 
-    @Before
-    public void setUp(){
+    @BeforeEach
+    void setUp(){
+        validatorFactory = new ValidatorFactory();
         handler = new FileContentHandler();
         metaFile = new StringBuilder()
             .append(TOSCA_META_FILE_VERSION_ENTRY.getName())
@@ -58,49 +64,49 @@ public class ValidatorFactoryTest {
             .toString();
     }
 
-    @Test(expected = IOException.class)
-    public void testGivenEmptyMetaFile_thenIOExceptionIsThrown() throws IOException{
+    @Test
+    void testGivenEmptyMetaFile_thenIOExceptionIsThrown() {
         handler.addFile(TOSCA_META_PATH_FILE_NAME, "".getBytes(StandardCharsets.UTF_8));
         handler.addFile(TOSCA_DEFINITION_FILEPATH, "".getBytes());
         handler.addFile(TOSCA_CHANGELOG_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
         handler.addFile(TOSCA_MANIFEST_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
 
-        ValidatorFactory.getValidator(handler);
+        assertThrows(IOException.class, () -> validatorFactory.getValidator(handler));
     }
 
     @Test
-    public void testGivenEmptyBlock0_thenONAPCsarValidatorIsReturned() throws IOException {
+    void testGivenEmptyBlock0_thenONAPCsarValidatorIsReturned() throws IOException {
         handler.addFile(TOSCA_META_PATH_FILE_NAME, " ".getBytes(StandardCharsets.UTF_8));
         handler.addFile(TOSCA_DEFINITION_FILEPATH, "".getBytes());
         handler.addFile(TOSCA_CHANGELOG_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
         handler.addFile(TOSCA_MANIFEST_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
 
-        assertEquals(ONAPCsarValidator.class, ValidatorFactory.getValidator(handler).getClass());
+        assertEquals(ONAPCsarValidator.class, validatorFactory.getValidator(handler).getClass());
     }
 
 
     @Test
-    public void testGivenNonSOL004MetaDirectoryCompliantMetaFile_thenONAPCSARValidatorIsReturned() throws IOException {
+    void testGivenNonSOL004MetaDirectoryCompliantMetaFile_thenONAPCSARValidatorIsReturned() throws IOException {
         metaFile = metaFile +
                 ENTRY_DEFINITIONS.getName() + ATTRIBUTE_VALUE_SEPARATOR.getToken() + TOSCA_DEFINITION_FILEPATH;
         handler.addFile(TOSCA_META_PATH_FILE_NAME, metaFile.getBytes(StandardCharsets.UTF_8));
 
-        assertEquals(ONAPCsarValidator.class, ValidatorFactory.getValidator(handler).getClass());
+        assertEquals(ONAPCsarValidator.class, validatorFactory.getValidator(handler).getClass());
     }
 
     @Test
-    public void testGivenSOL004MetaDirectoryCompliantMetafile_thenONAPCsarValidatorIsReturned() throws IOException {
+    void testGivenSOL004MetaDirectoryCompliantMetafile_thenONAPCsarValidatorIsReturned() throws IOException {
         metaFile = metaFile +
             ENTRY_DEFINITIONS.getName() + ATTRIBUTE_VALUE_SEPARATOR.getToken() + TOSCA_DEFINITION_FILEPATH + "\n"
             + ETSI_ENTRY_MANIFEST.getName() + ATTRIBUTE_VALUE_SEPARATOR.getToken() + TOSCA_MANIFEST_FILEPATH + "\n"
             + ETSI_ENTRY_CHANGE_LOG.getName() + ATTRIBUTE_VALUE_SEPARATOR.getToken() + TOSCA_CHANGELOG_FILEPATH + "\n";
         handler.addFile(TOSCA_META_PATH_FILE_NAME, metaFile.getBytes(StandardCharsets.UTF_8));
 
-       assertEquals(SOL004MetaDirectoryValidator.class, ValidatorFactory.getValidator(handler).getClass());
+       assertEquals(SOL004MetaDirectoryValidator.class, validatorFactory.getValidator(handler).getClass());
     }
 
     @Test
-    public void testGivenMultiBlockMetadataWithSOL00CompliantMetaFile_thenSOL004MetaDirectoryValidatorReturned()
+    void testGivenMultiBlockMetadataWithSOL00CompliantMetaFile_thenSOL004MetaDirectoryValidatorReturned()
             throws IOException {
         handler.addFile(TOSCA_META_PATH_FILE_NAME,
             getResourceBytesOrFail("validation.files/metafile/metaFileWithMultipleBlocks.meta"));
@@ -108,8 +114,20 @@ public class ValidatorFactoryTest {
         handler.addFile(TOSCA_CHANGELOG_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
         handler.addFile(TOSCA_MANIFEST_FILEPATH, "".getBytes(StandardCharsets.UTF_8));
 
-        assertEquals(SOL004MetaDirectoryValidator.class, ValidatorFactory.getValidator(handler).getClass());
+        assertEquals(SOL004MetaDirectoryValidator.class, validatorFactory.getValidator(handler).getClass());
+
+    }
 
+    @Test
+    void testGetValidators() {
+        final List<Validator> validatorList = validatorFactory.getValidators("test");
+        assertFalse(validatorList.isEmpty());
+        assertEquals(2, validatorList.size());
+        assertTrue(validatorList.get(0) instanceof TestModelValidator1);
+        assertTrue(validatorList.get(1) instanceof TestModelValidator2);
+
+        final List<Validator> validatorList1 = validatorFactory.getValidators("test1");
+        assertTrue(validatorList1.isEmpty());
     }
 
 }
diff --git a/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/resources/META-INF/services/org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.Validator b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/resources/META-INF/services/org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.Validator
new file mode 100644
index 0000000000..16a9298ff3
--- /dev/null
+++ b/openecomp-be/backend/openecomp-sdc-vendor-software-product-manager/src/test/resources/META-INF/services/org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.Validator
@@ -0,0 +1,2 @@
+org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.TestModelValidator1
+org.openecomp.sdc.vendorsoftwareproduct.impl.orchestration.csar.validation.TestModelValidator2
\ No newline at end of file