Implement 'Update Service by importing Tosca Template'-story
[sdc.git] / catalog-be / src / main / java / org / openecomp / sdc / be / servlets / AbstractValidationsServlet.java
index 6b16e71..ade8637 100644 (file)
@@ -7,51 +7,55 @@
  * 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.
  * ============LICENSE_END=========================================================
+ * Modifications copyright (c) 2019 Nokia
+ * ================================================================================
  */
-
 package org.openecomp.sdc.be.servlets;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.gson.Gson;
+import com.google.gson.JsonSyntaxException;
+import fj.data.Either;
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.reflect.Type;
 import java.nio.charset.StandardCharsets;
-import java.util.EnumMap;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import java.util.function.Supplier;
-import java.util.zip.ZipInputStream;
-
-import javax.annotation.Resource;
 import javax.servlet.ServletContext;
 import javax.servlet.http.HttpServletRequest;
 import javax.ws.rs.core.Response;
-
 import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
-import org.codehaus.jackson.map.ObjectMapper;
 import org.openecomp.sdc.be.components.impl.ComponentInstanceBusinessLogic;
 import org.openecomp.sdc.be.components.impl.CsarValidationUtils;
 import org.openecomp.sdc.be.components.impl.ImportUtils;
 import org.openecomp.sdc.be.components.impl.ImportUtils.ResultStatusEnum;
 import org.openecomp.sdc.be.components.impl.ImportUtils.ToscaElementTypeEnum;
-import org.openecomp.sdc.be.components.impl.ImportUtils.ToscaTagNamesEnum;
 import org.openecomp.sdc.be.components.impl.ResourceImportManager;
+import org.openecomp.sdc.be.components.impl.ServiceImportManager;
+import org.openecomp.sdc.be.components.impl.exceptions.ByActionStatusComponentException;
+import org.openecomp.sdc.be.components.impl.exceptions.ByResponseFormatComponentException;
+import org.openecomp.sdc.be.components.impl.exceptions.ComponentException;
 import org.openecomp.sdc.be.config.BeEcompErrorManager;
+import org.openecomp.sdc.be.config.ConfigurationManager;
 import org.openecomp.sdc.be.dao.api.ActionStatus;
 import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
@@ -59,869 +63,1152 @@ import org.openecomp.sdc.be.impl.ComponentsUtils;
 import org.openecomp.sdc.be.impl.ServletUtils;
 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
 import org.openecomp.sdc.be.model.ArtifactDefinition;
+import org.openecomp.sdc.be.model.Component;
+import org.openecomp.sdc.be.model.Resource;
+import org.openecomp.sdc.be.model.Service;
 import org.openecomp.sdc.be.model.UploadResourceInfo;
+import org.openecomp.sdc.be.model.UploadServiceInfo;
 import org.openecomp.sdc.be.model.User;
 import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
 import org.openecomp.sdc.be.servlets.ResourceUploadServlet.ResourceAuthorityTypeEnum;
-import org.openecomp.sdc.be.user.IUserBusinessLogic;
+import org.openecomp.sdc.be.servlets.ServiceUploadServlet.ServiceAuthorityTypeEnum;
 import org.openecomp.sdc.be.user.Role;
+import org.openecomp.sdc.be.user.UserBusinessLogic;
+import org.openecomp.sdc.be.utils.TypeUtils;
 import org.openecomp.sdc.common.api.Constants;
 import org.openecomp.sdc.common.api.UploadArtifactInfo;
-import org.openecomp.sdc.common.datastructure.AuditingFieldsKeysEnum;
 import org.openecomp.sdc.common.datastructure.Wrapper;
+import org.openecomp.sdc.common.log.wrappers.Logger;
 import org.openecomp.sdc.common.util.GeneralUtility;
 import org.openecomp.sdc.common.util.YamlToObjectConverter;
-import org.openecomp.sdc.common.util.ZipUtil;
+import org.openecomp.sdc.common.zip.ZipUtils;
+import org.openecomp.sdc.common.zip.exception.ZipException;
 import org.openecomp.sdc.exception.ResponseFormat;
-import org.slf4j.Logger;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.context.WebApplicationContext;
 import org.yaml.snakeyaml.Yaml;
 
-import com.google.gson.Gson;
-import com.google.gson.JsonSyntaxException;
-
-import fj.data.Either;
-
 public abstract class AbstractValidationsServlet extends BeGenericServlet {
 
-       @Resource
-       private ServletUtils servletUtils;
-
-       @Resource
-       private ResourceImportManager resourceImportManager;
-
-       @Autowired
-       protected ComponentsUtils componentsUtils;
-
-       private Logger log = null;
-
-       protected void init(Logger log) {
-               initLog(log);
-               initSpringFromContext();
-
-       }
-
-       private synchronized void initLog(Logger log) {
-               if (this.log == null) {
-                       this.log = log;
-               }
-       }
-
-       private synchronized void initSpringFromContext() {
-               if (servletUtils == null) {
-                       ServletContext context = servletRequest.getSession().getServletContext();
-                       WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context
-                                       .getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
-                       WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
-                       servletUtils = webApplicationContext.getBean(ServletUtils.class);
-                       resourceImportManager = webApplicationContext.getBean(ResourceImportManager.class);
-               }
-       }
-
-       protected void validateResourceDoesNotExist(Wrapper<Response> responseWrapper, User user, String resourceName) {
-               if (resourceImportManager.isResourceExist(resourceName)) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESOURCE_ALREADY_EXISTS);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceName);
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-       }
-
-       protected void validateUserExist(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, String userUserId) {
-               log.debug("get user {} from DB", userUserId);
-               // get user details
-               if (userUserId == null) {
-                       log.info("user userId is null");
-                       Response response = returnMissingInformation(new User());
-                       responseWrapper.setInnerElement(response);
-               }
-
-               else {
-                       IUserBusinessLogic userAdmin = getServletUtils().getUserAdmin();
-                       Either<User, ActionStatus> eitherCreator = userAdmin.getUser(userUserId, false);
-                       if (eitherCreator.isRight()) {
-                               log.info("user is not listed. userId={}", userUserId);
-                               User user = new User();
-                               user.setUserId(userUserId);
-                               Response response = returnMissingInformation(user);
-                               responseWrapper.setInnerElement(response);
-                       } else {
-                               userWrapper.setInnerElement(eitherCreator.left().value());
-                       }
-               }
-       }
-
-       protected Response returnMissingInformation(User user) {
-               ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_INFORMATION);
-               getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, null);
-               return buildErrorResponse(responseFormat);
-       }
-
-       protected void validateDataNotNull(Wrapper<Response> responseWrapper, Object... dataParams) {
-               for (Object dataElement : dataParams) {
-                       if (dataElement == null) {
-                               log.info("Invalid body was received.");
-                               Response response = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-                               responseWrapper.setInnerElement(response);
-                               break;
-                       }
-               }
-
-       }
-
-       protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user) {
-               log.debug("validate user role");
-               if (!user.getRole().equals(Role.ADMIN.name()) && !user.getRole().equals(Role.DESIGNER.name())) {
-                       log.info("user is not in appropriate role to perform action");
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
-                       log.debug("audit before sending response");
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, null);
-
-                       Response response = buildErrorResponse(responseFormat);
-                       errorResponseWrapper.setInnerElement(response);
-               }
-
-       }
-
-       protected void validateZip(Wrapper<Response> responseWrapper, File file, String payloadName) throws FileNotFoundException {
-               InputStream fileInputStream = new FileInputStream(file);
-               Map<String, byte[]> unzippedFolder = ZipUtil.readZip(new ZipInputStream(fileInputStream));
-               if (payloadName == null || payloadName.isEmpty() || !unzippedFolder.containsKey(payloadName)) {
-                       log.info("Invalid json was received. payloadName should be yml file name");
-                       Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-       protected void validateCsar(Wrapper<Response> responseWrapper, File file, String payloadName) throws FileNotFoundException {
-               InputStream fileInputStream = new FileInputStream(file);
-               Map<String, byte[]> unzippedFolder = ZipUtil.readZip(new ZipInputStream(fileInputStream));
-               if (payloadName == null || payloadName.isEmpty() || unzippedFolder.isEmpty()) {
-                       log.info("Invalid json was received. payloadName should be yml file name");
-                       Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-
-       protected void fillZipContents(Wrapper<String> yamlStringWrapper, File file) throws FileNotFoundException {
-               InputStream fileInputStream = new FileInputStream(file);
-               Map<String, byte[]> unzippedFolder = ZipUtil.readZip(new ZipInputStream(fileInputStream));
-               String ymlName = unzippedFolder.keySet().iterator().next();
-               fillToscaTemplateFromZip(yamlStringWrapper, ymlName, file);
-       }
-
-       protected void fillToscaTemplateFromZip(Wrapper<String> yamlStringWrapper, String payloadName, File file) throws FileNotFoundException {
-               InputStream fileInputStream = new FileInputStream(file);
-               Map<String, byte[]> unzippedFolder = ZipUtil.readZip(new ZipInputStream(fileInputStream));
-               byte[] yamlFileInBytes = unzippedFolder.get(payloadName);
-               String yamlAsString = new String(yamlFileInBytes, StandardCharsets.UTF_8);
-               log.debug("received yaml: {}", yamlAsString);
-               yamlStringWrapper.setInnerElement(yamlAsString);
-       }
-       
-       protected void fillPayloadDataFromFile(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfoWrapper, File file)  {
-               try(InputStream fileInputStream = new FileInputStream(file);){
-                       
-                       byte [] data = new byte[(int)file.length()];
-                       if( fileInputStream.read(data) == -1){
-                               log.info("Invalid json was received.");
-                               ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                               
-                               Response errorResp = buildErrorResponse(responseFormat);
-                               responseWrapper.setInnerElement(errorResp);
-                       }
-                       String payloadData =  Base64.encodeBase64String(data);
-                       uploadResourceInfoWrapper.setPayloadData(payloadData);                  
-                       
-                       
-                       
-               } catch (IOException e) {
-                       log.info("Invalid json was received or Error while closing input Stream.");
-                       log.debug("Invalid json was received or Error while closing input Stream. {}", e.getMessage(), e);
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       
-                       Response errorResp = buildErrorResponse(responseFormat);
-                       responseWrapper.setInnerElement(errorResp);
-                       
-               }
-       }
-
-       protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user, ResourceAuthorityTypeEnum resourceAuthority) {
-               log.debug("validate user role");
-               if (resourceAuthority == ResourceAuthorityTypeEnum.NORMATIVE_TYPE_BE) {
-                       if (!user.getRole().equals(Role.ADMIN.name())) {
-                               log.info("user is not in appropriate role to perform action");
-                               ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
-                               log.debug("audit before sending response");
-                               getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, null);
-
-                               Response response = buildErrorResponse(responseFormat);
-                               errorResponseWrapper.setInnerElement(response);
-                       }
-               } else {
-                       validateUserRole(errorResponseWrapper, user);
-               }
-
-       }
-
-       protected void validateAndFillResourceJson(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, User user, ResourceAuthorityTypeEnum resourceAuthorityEnum, String resourceInfo) {
-               boolean isValid;
-               try {
-                       log.debug("The received json is {}", resourceInfo);
-                       UploadResourceInfo resourceInfoObject = gson.fromJson(resourceInfo, UploadResourceInfo.class);
-                       if (resourceInfoObject == null) {
-                               isValid = false;
-                       } else {
-                               if (!resourceAuthorityEnum.isBackEndImport()) {
-                                       isValid = resourceInfoObject.getPayloadName() != null && !resourceInfoObject.getPayloadName().isEmpty();
-                                       //only resource name is checked
-                               } else {
-                                       isValid = true;
-                               }
-                               uploadResourceInfoWrapper.setInnerElement(resourceInfoObject);
-                       }
-
-               } catch (JsonSyntaxException e) {
-                       log.debug("Invalid json was received. {}", e.getMessage(), e);
-                       isValid = false;
-
-               }
-               if (!isValid) {
-                       log.info("Invalid json was received.");
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, null);
-                       Response errorResp = buildErrorResponse(responseFormat);
-                       responseWrapper.setInnerElement(errorResp);
-               }
-       }
-
-       protected void validateAuthorityType(Wrapper<Response> responseWrapper, String authorityType) {
-               log.debug("The received authority type is {}", authorityType);
-               ResourceAuthorityTypeEnum authorityTypeEnum = ResourceAuthorityTypeEnum.findByUrlPath(authorityType);
-               if (authorityTypeEnum == null) {
-                       log.info("Invalid authority type was received.");
-                       Response errorResp = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-                       responseWrapper.setInnerElement(errorResp);
-               }
-       }
-
-       public ServletUtils getServletUtils() {
-               initSpringFromContext();
-               return servletUtils;
-       }
-
-       public Gson getGson() {
-               return getServletUtils().getGson();
-       }
-
-       public ComponentsUtils getComponentsUtils() {
-               return getServletUtils().getComponentsUtils();
-       }
-
-       protected void validatePayloadIsTosca(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user, String toscaPayload) {
-               log.debug("checking payload is valid tosca");
-               boolean isValid;
-               Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
-               Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils.findFirstToscaStringElement(mappedToscaTemplate, ToscaTagNamesEnum.TOSCA_VERSION);
-
-               if (findFirstToscaStringElement.isRight()) {
-                       isValid = false;
-               } else {
-                       String defenitionVersionFound = findFirstToscaStringElement.left().value();
-                       if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
-                               isValid = false;
-                       } else {
-                               isValid = ImportUtils.Constants.TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
-                       }
-               }
-
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-
-       protected void validatePayloadIsYml(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo, String toscaTamplatePayload) {
-               log.debug("checking tosca template is valid yml");
-               YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
-               boolean isYamlValid = yamlConvertor.isValidYaml(toscaTamplatePayload.getBytes());
-               if (!isYamlValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-       }
-
-       protected void validatePayloadNameSpace(Wrapper<Response> responseWrapper, UploadResourceInfo resourceInfo, User user, String toscaPayload) {
-               boolean isValid;
-               String nameSpace = "";
-               Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
-               Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(mappedToscaTemplate, ToscaTagNamesEnum.NODE_TYPES);
-               if (toscaElement.isRight() || toscaElement.left().value().size() != 1) {
-                       isValid = false;
-               } else {
-                       nameSpace = toscaElement.left().value().keySet().iterator().next();
-                       isValid = nameSpace.startsWith(Constants.USER_DEFINED_RESOURCE_NAMESPACE_PREFIX);
-               }
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_NAMESPACE);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               } else {
-                       String str1 = nameSpace.substring(Constants.USER_DEFINED_RESOURCE_NAMESPACE_PREFIX.length());
-                       String[] findTypes = str1.split("\\.");
-                       if (ResourceTypeEnum.containsName(findTypes[0].toUpperCase())) {
-                               String type = findTypes[0].toUpperCase();
-                               resourceInfo.setResourceType(type);
-                       } else {
-                               resourceInfo.setResourceType(ResourceTypeEnum.VFC.name());
-                       }
-               }
-
-       }
-
-       protected void validatePayloadIsSingleResource(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user, String toscaPayload) {
-               log.debug("checking payload contains single resource");
-               boolean isValid;
-               Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
-               Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(mappedToscaTemplate, ToscaTagNamesEnum.NODE_TYPES);
-               if (toscaElement.isRight()) {
-                       isValid = false;
-               } else {
-                       isValid = toscaElement.left().value().size() == 1;
-               }
-
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_SINGLE_RESOURCE);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-
-       protected void validatePayloadIsNotService(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo, String toscaPayload) {
-               log.debug("checking payload is not a tosca service");
-               Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
-               Either<Object, ResultStatusEnum> toscaElement = ImportUtils.findToscaElement(mappedToscaTemplate, ToscaTagNamesEnum.TOPOLOGY_TEMPLATE, ToscaElementTypeEnum.ALL);
-
-               if (toscaElement.isLeft()) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_RESOURCE_TOSCA_TEMPLATE);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-       
-       protected void validateToscaTemplatePayloadName(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
-               String toscaTemplatePayloadName = uploadResourceInfo.getPayloadName();
-               boolean isValidSuffix = false;
-               if (toscaTemplatePayloadName != null && !toscaTemplatePayloadName.isEmpty()) {
-                       for (String validSuffix : ImportUtils.Constants.TOSCA_YML_CSAR_VALID_SUFFIX) {
-                               isValidSuffix = isValidSuffix || toscaTemplatePayloadName.toLowerCase().endsWith(validSuffix);
-                       }
-               }
-               if (!isValidSuffix) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_FILE_EXTENSION);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-
-       }
-
-       protected void validateMD5(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfo, HttpServletRequest request, String resourceInfoJsonString) {
-               boolean isValid;
-               String recievedMD5 = request.getHeader(Constants.MD5_HEADER);
-               if (recievedMD5 == null) {
-                       isValid = false;
-               } else {
-                       String calculateMD5 = GeneralUtility.calculateMD5ByString(resourceInfoJsonString);
-                       isValid = calculateMD5.equals(recievedMD5);
-               }
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_CHECKSUM);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-       }
-
-       protected void validateComponentType(Wrapper<Response> responseWrapper, Wrapper<ComponentTypeEnum> componentWrapper, String componentType) {
-               boolean isValid;
-               if (componentType == null) {
-                       isValid = false;
-               } else {
-                       if (ComponentTypeEnum.RESOURCE_PARAM_NAME.equalsIgnoreCase(componentType)) {
-                               isValid = true;
-                               componentWrapper.setInnerElement(ComponentTypeEnum.RESOURCE);
-                       } else if (ComponentTypeEnum.SERVICE_PARAM_NAME.equalsIgnoreCase(componentType)) {
-                               isValid = true;
-                               componentWrapper.setInnerElement(ComponentTypeEnum.SERVICE);
-                       } else {
-                               isValid = false;
-                       }
-               }
-               if (!isValid) {
-                       log.debug("Invalid componentType:{}", componentType);
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       Response errorResp = buildErrorResponse(responseFormat);
-                       responseWrapper.setInnerElement(errorResp);
-               }
-       }
-
-       protected void fillToscaTemplateFromJson(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user, UploadResourceInfo resourceInfo) {
-               if (resourceInfo.getPayloadData() == null || resourceInfo.getPayloadData().isEmpty()) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_PAYLOAD);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               } else {
-                       String toscaPayload = resourceInfo.getPayloadData();
-                       String decodedPayload = new String(Base64.decodeBase64(toscaPayload));
-                       yamlStringWrapper.setInnerElement(decodedPayload);
-               }
-
-       }
-
-       protected void fillPayload(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, Wrapper<String> yamlStringWrapper, User user, String resourceInfoJsonString, ResourceAuthorityTypeEnum resourceAuthorityEnum,
-                       File file) throws FileNotFoundException {
-
-               if (responseWrapper.isEmpty()) {
-                       if (resourceAuthorityEnum.isBackEndImport()) {
-                               // PrePayload Validations
-                               if (responseWrapper.isEmpty()) {
-                                       validateDataNotNull(responseWrapper, file, resourceInfoJsonString);
-                               }
-                               if(!resourceAuthorityEnum.equals(ResourceAuthorityTypeEnum.CSAR_TYPE_BE)){
-                                       if (responseWrapper.isEmpty()) {
-                                               validateZip(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
-                                       }
-       
-                                       // Fill PayLoad From File
-                                       if (responseWrapper.isEmpty()) {
-                                               fillToscaTemplateFromZip(yamlStringWrapper, uploadResourceInfoWrapper.getInnerElement().getPayloadName(), file);
-                                       }
-                               }else{
-                                       
-                                       if (responseWrapper.isEmpty()) {
-                                               validateCsar(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
-                                       }
-       
-                                       // Fill PayLoad From File
-                                       if (responseWrapper.isEmpty()) {
-                                               fillPayloadDataFromFile(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), file);
-                                       }
-                                       
-                               }
-
-                       } else {
-                               // Fill PayLoad From JSON
-                               if (responseWrapper.isEmpty()) {
-                                       fillToscaTemplateFromJson(responseWrapper, yamlStringWrapper, user, uploadResourceInfoWrapper.getInnerElement());
-                               }
-                       }
-
-               }
-
-       }
-
-       protected void specificResourceAuthorityValidations(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, Wrapper<String> yamlStringWrapper, User user, HttpServletRequest request, String resourceInfoJsonString,
-                       ResourceAuthorityTypeEnum resourceAuthorityEnum) throws FileNotFoundException {
-
-               if (responseWrapper.isEmpty()) {
-                       // UI Only Validation
-                       if (!resourceAuthorityEnum.isBackEndImport()) {
-                               importUIValidations(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, request, resourceInfoJsonString);
-                       }
-
-                       // User Defined Type Resources
-                       if (resourceAuthorityEnum.isUserTypeResource() && !CsarValidationUtils.isCsarPayloadName(uploadResourceInfoWrapper.getInnerElement().getPayloadName())) {
-                               if (responseWrapper.isEmpty()) {
-                                       validatePayloadNameSpace(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, yamlStringWrapper.getInnerElement());
-                               }
-
-                       }
-               }
-       }
-       
-       protected void commonGeneralValidations(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, ResourceAuthorityTypeEnum resourceAuthorityEnum, String userUserId,
-                       String resourceInfoJsonString) {
-
-               if (responseWrapper.isEmpty()) {
-                       validateUserExist(responseWrapper, userWrapper, userUserId);
-               }
-
-               if (responseWrapper.isEmpty()) {
-                       validateUserRole(responseWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum);
-               }
-
-               if (responseWrapper.isEmpty()) {
-                       validateAndFillResourceJson(responseWrapper, uploadResourceInfoWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum, resourceInfoJsonString);
-               }
-
-               if (responseWrapper.isEmpty()) {
-                       validateToscaTemplatePayloadName(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validateResourceType(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
-               }
-
-       }
-
-       private void validateResourceType(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
-               String resourceType = uploadResourceInfo.getResourceType();
-               if (resourceType == null || !ResourceTypeEnum.containsName(resourceType)) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       Response errorResponse = buildErrorResponse(responseFormat);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, uploadResourceInfo.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       responseWrapper.setInnerElement(errorResponse);
-               }
-       }
-
-       protected void importUIValidations(Wrapper<Response> responseWrapper, UploadResourceInfo resourceInfo, User user, HttpServletRequest request, String resourceInfoJsonString) {
-               if (responseWrapper.isEmpty()) {
-                       validateMD5(responseWrapper, user, resourceInfo, request, resourceInfoJsonString);
-               }
-               if (responseWrapper.isEmpty() && request != null && request.getMethod() != null && request.getMethod().equals("POST")) {
-                       validateResourceDoesNotExist(responseWrapper, user, resourceInfo.getName());
-               }
-       }
-
-       protected void commonPayloadValidations(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user, UploadResourceInfo uploadResourceInfo) {
-
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsYml(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsTosca(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsNotService(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsSingleResource(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
-               }
-       }
-
-       /*protected void topologyTemplatePayloadValidations(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user, UploadResourceInfo uploadResourceInfo) {
-
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsYml(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsTosca(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
-               }
-               if (responseWrapper.isEmpty()) {
-                       validatePayloadIsTopologyTemplate(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
-               }
-
-       }*/
-
-       protected void handleImport(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfoObject, String yamlAsString, ResourceAuthorityTypeEnum authority, boolean createNewVersion, String resourceUniqueId) {
-               Either<ImmutablePair<org.openecomp.sdc.be.model.Resource, ActionStatus>, ResponseFormat> createOrUpdateResponse;
-               Response response;
-               Object representation = null;
-
-               if (CsarValidationUtils.isCsarPayloadName(resourceInfoObject.getPayloadName())) {
-                       log.debug("import resource from csar");
-                       
-                       createOrUpdateResponse = importResourceFromUICsar(resourceInfoObject, user, resourceUniqueId);
-                       //if (createOrUpdateResponse.isLeft()){
-                       //      LifecycleChangeInfoWithAction lifecycleChangeInfo = new LifecycleChangeInfoWithAction();
-                       //      lifecycleChangeInfo.setUserRemarks("certification on import");
-                       //      Function<Resource, Either<Boolean, ResponseFormat>> validator = (resource) -> resourceImportManager.getResourceBusinessLogic().validatePropertiesDefaultValues(createOrUpdateResponse.left().value().left);
-                       //}
-                       
-               } else if (!authority.isUserTypeResource()) {
-                       log.debug("import normative type resource");
-                       createOrUpdateResponse = resourceImportManager.importNormativeResource(yamlAsString, resourceInfoObject, user, createNewVersion, true);
-               } else {
-                       log.debug("import user resource (not normative type)");
-                       createOrUpdateResponse = resourceImportManager.importUserDefinedResource(yamlAsString, resourceInfoObject, user, false, false);
-               }
-               if (createOrUpdateResponse.isRight()) {
-                       response = buildErrorResponse(createOrUpdateResponse.right().value());
-               } else {
-                       try {
-                               representation = RepresentationUtils.toRepresentation(createOrUpdateResponse.left().value().getLeft());
-                       } catch (IOException e) {
-                               log.debug("Error while building resource representation : {}", e.getMessage(), e);
-                       }
-                       ActionStatus successStatus = createOrUpdateResponse.left().value().right;
-                       response = buildOkResponse(getComponentsUtils().getResponseFormat(successStatus), representation);
-               }
-               responseWrapper.setInnerElement(response);
-       }
-
-       private Either<ImmutablePair<org.openecomp.sdc.be.model.Resource, ActionStatus>, ResponseFormat> importResourceFromUICsar(UploadResourceInfo resourceInfoObject, User user, String resourceUniqueId) {
-
-               Either<org.openecomp.sdc.be.model.Resource, ResponseFormat> createOrUpdateResourceRes;
-               ImmutablePair<org.openecomp.sdc.be.model.Resource, ActionStatus> result = null;
-               ActionStatus actionStatus;
-               org.openecomp.sdc.be.model.Resource resource = new org.openecomp.sdc.be.model.Resource();
-               String payloadName = resourceInfoObject.getPayloadName();
-               fillResourceFromResourceInfoObject(resource, resourceInfoObject);
-
-               Either<Map<String, byte[]>, ResponseFormat> csarUIPayloadRes = getScarFromPayload(resourceInfoObject);
-               if (csarUIPayloadRes.isRight()) {
-                       return Either.right(csarUIPayloadRes.right().value());
-               }
-               Map<String, byte[]> csarUIPayload = csarUIPayloadRes.left().value();
-
-               createOrUpdateResourceRes = getAndValidateCsarYaml(csarUIPayload, resource, user, payloadName);
-               if (createOrUpdateResourceRes.isRight()) {
-                       return Either.right(createOrUpdateResourceRes.right().value());
-               }
-               if (resourceUniqueId == null || resourceUniqueId.isEmpty()) {
-                       createOrUpdateResourceRes = resourceImportManager.getResourceBusinessLogic().createResource(resource, AuditingActionEnum.CREATE_RESOURCE, user, csarUIPayload, payloadName);
-                       if (createOrUpdateResourceRes.isRight()) {
-                               return Either.right(createOrUpdateResourceRes.right().value());
-                       }
-                       actionStatus = ActionStatus.CREATED;
-               } else {
-                       createOrUpdateResourceRes = resourceImportManager.getResourceBusinessLogic().validateAndUpdateResourceFromCsar(resource, user, csarUIPayload, payloadName, resourceUniqueId);
-                       if (createOrUpdateResourceRes.isRight()) {
-                               return Either.right(createOrUpdateResourceRes.right().value());
-                       }
-                       actionStatus = ActionStatus.OK;
-               }
-               result = new ImmutablePair<org.openecomp.sdc.be.model.Resource, ActionStatus>(createOrUpdateResourceRes.left().value(), actionStatus);
-               return Either.left(result);
-       }
-
-       private Either<org.openecomp.sdc.be.model.Resource, ResponseFormat> getAndValidateCsarYaml(Map<String, byte[]> csarUIPayload, org.openecomp.sdc.be.model.Resource resource, User user, String csarUUID) {
-
-               Either<ImmutablePair<String, String>, ResponseFormat> getToscaYamlRes = CsarValidationUtils.getToscaYaml(csarUIPayload, csarUUID, getComponentsUtils());
-
-               if (getToscaYamlRes.isRight()) {
-                       ResponseFormat responseFormat = getToscaYamlRes.right().value();
-                       log.debug("Error when try to get csar toscayamlFile with csar ID {}, error: {}", csarUUID, responseFormat);
-                       BeEcompErrorManager.getInstance().logBeDaoSystemError("Creating resource from CSAR: fetching CSAR with id " + csarUUID + " failed");
-                       getComponentsUtils().auditResource(responseFormat, user, resource, "", "", AuditingActionEnum.CREATE_RESOURCE, null);
-                       return Either.right(responseFormat);
-               }
-               String toscaYaml = getToscaYamlRes.left().value().getValue();
-
-               log.debug("checking tosca template is valid yml");
-               YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
-               boolean isValid = yamlConvertor.isValidYaml(toscaYaml.getBytes());
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resource.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       return Either.right(responseFormat);
-               }
-
-               log.debug("checking payload is valid tosca");
-               String heatDecodedPayload = toscaYaml;
-               Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(heatDecodedPayload);
-               Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils.findFirstToscaStringElement(mappedToscaTemplate, ToscaTagNamesEnum.TOSCA_VERSION);
-
-               if (findFirstToscaStringElement.isRight()) {
-                       isValid = false;
-               } else {
-                       String defenitionVersionFound = findFirstToscaStringElement.left().value();
-                       if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
-                               isValid = false;
-                       } else {
-                               isValid = ImportUtils.Constants.TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
-                       }
-               }
-
-               if (!isValid) {
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
-                       EnumMap<AuditingFieldsKeysEnum, Object> additionalParam = new EnumMap<AuditingFieldsKeysEnum, Object>(AuditingFieldsKeysEnum.class);
-                       additionalParam.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resource.getName());
-                       getComponentsUtils().auditResource(responseFormat, user, null, "", "", AuditingActionEnum.IMPORT_RESOURCE, additionalParam);
-                       return Either.right(responseFormat);
-               }
-               return Either.left(resource);
-       }
-
-       private void fillResourceFromResourceInfoObject(org.openecomp.sdc.be.model.Resource resource, UploadResourceInfo resourceInfoObject) {
-               if (resource != null && resourceInfoObject != null) {
-                       resource.setDescription(resourceInfoObject.getDescription());
-                       resource.setTags(resourceInfoObject.getTags());
-                       resource.setCategories(resourceInfoObject.getCategories());
-                       resource.setContactId(resourceInfoObject.getContactId());
-                       resource.setName(resourceInfoObject.getName());
-                       resource.setIcon(resourceInfoObject.getResourceIconPath());
-                       resource.setVendorName(resourceInfoObject.getVendorName());
-                       resource.setVendorRelease(resourceInfoObject.getVendorRelease());
-                       resource.setResourceType(ResourceTypeEnum.valueOf(resourceInfoObject.getResourceType()));
-                       List<UploadArtifactInfo> artifactList = resourceInfoObject.getArtifactList();
-                       if (artifactList != null) {
-                               Map<String, ArtifactDefinition> artifactsHM = new HashMap<String, ArtifactDefinition>();
-                               for (UploadArtifactInfo artifact : artifactList) {
-                                       ArtifactDefinition artifactDef = new ArtifactDefinition();
-                                       artifactDef.setArtifactName(artifact.getArtifactName());
-                                       artifactDef.setArtifactType(artifact.getArtifactType().getType());
-                                       artifactDef.setDescription(artifact.getArtifactDescription());
-                                       artifactDef.setPayloadData(artifact.getArtifactData());
-                                       artifactDef.setArtifactRef(artifact.getArtifactPath());
-                                       artifactsHM.put(artifactDef.getArtifactName(), artifactDef);
-                               }
-                               resource.setArtifacts(artifactsHM);
-                       }
-               }
-
-       }
-
-       private Either<Map<String, byte[]>, ResponseFormat> getScarFromPayload(UploadResourceInfo innerElement) {
-               String csarUUID = innerElement.getPayloadName();
-               String payloadData = innerElement.getPayloadData();
-               if (payloadData == null) {
-                       log.info("Failed to decode received csar", csarUUID);
-                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.CSAR_NOT_FOUND, csarUUID));
-               }
-               
-               byte[] decodedPayload = Base64.decodeBase64(payloadData.getBytes(StandardCharsets.UTF_8));
-               if (decodedPayload == null) {
-                       log.info("Failed to decode received csar", csarUUID);
-                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.CSAR_NOT_FOUND, csarUUID));
-               }
-
-               Map<String, byte[]> csar = ZipUtil.readZip(decodedPayload);
-               if (csar == null) {
-                       log.info("Failed to unzip received csar", csarUUID);
-                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.CSAR_INVALID, csarUUID));
-               }
-               return Either.left(csar);
-       }
-
-       protected void validateInputStream(final HttpServletRequest request, Wrapper<String> dataWrapper, Wrapper<ResponseFormat> errorWrapper) throws IOException {
-               InputStream inputStream = request.getInputStream();
-               byte[] bytes = IOUtils.toByteArray(inputStream);
-               if (bytes == null || bytes.length == 0) {
-                       log.info("Empty body was sent.");
-                       errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-               } else {
-                       dataWrapper.setInnerElement(new String(bytes, StandardCharsets.UTF_8));
-               }
-
-       }
-
-       protected <T> void validateClassParse(String data, Wrapper<T> parsedClassWrapper, Supplier<Class<T>> classGen, Wrapper<ResponseFormat> errorWrapper) {
-               try {
-                       T parsedClass = gson.fromJson(data, classGen.get());
-                       if (parsedClass == null) {
-                               errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-                       } else {
-                               parsedClassWrapper.setInnerElement(parsedClass);
-                       }
-               } catch (JsonSyntaxException e) {
-                       log.debug("Failed to decode received {} {} to object.", classGen.get().getName(), data, e);
-                       errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
-               }
-       }
-
-       protected void validateComponentInstanceBusinessLogic(HttpServletRequest request, String containerComponentType, Wrapper<ComponentInstanceBusinessLogic> blWrapper, Wrapper<ResponseFormat> errorWrapper) {
-               ServletContext context = request.getSession().getServletContext();
-
-               ComponentTypeEnum componentTypeEnum = ComponentTypeEnum.findByParamName(containerComponentType);
-               ComponentInstanceBusinessLogic componentInstanceLogic = getComponentInstanceBL(context, componentTypeEnum);
-               if (componentInstanceLogic == null) {
-                       log.debug("Unsupported component type {}", containerComponentType);
-                       errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.UNSUPPORTED_ERROR, containerComponentType));
-               } else {
-                       blWrapper.setInnerElement(componentInstanceLogic);
-               }
-       }
-
-       protected <T> Response buildResponseFromElement(Wrapper<ResponseFormat> errorWrapper, Wrapper<T> attributeWrapper) throws IOException {
-               Response response;
-               if (errorWrapper.isEmpty()) {
-                       ObjectMapper mapper = new ObjectMapper();
-                       String result = mapper.writeValueAsString(attributeWrapper.getInnerElement());
-                       response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result);
-               } else {
-                       response = buildErrorResponse(errorWrapper.getInnerElement());
-               }
-               return response;
-       }
-       
-       protected void validateXECOMPInstanceIDHeader(String instanceIdHeader, Wrapper<ResponseFormat> responseWrapper) {
-               ResponseFormat responseFormat;
-               if(StringUtils.isEmpty(instanceIdHeader) ){
-                       log.debug("Missing X-ECOMP-InstanceID header");
-                       responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_X_ECOMP_INSTANCE_ID);
-                       responseWrapper.setInnerElement(responseFormat);
-               }
-       }
-       
-       protected void validateHttpCspUserIdHeader(String header, Wrapper<ResponseFormat> responseWrapper) {
-               ResponseFormat responseFormat;
-               if( StringUtils.isEmpty(header)){
-                       log.debug("MissingUSER_ID");
-                       responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_USER_ID);
-                       responseWrapper.setInnerElement(responseFormat);
-               }
-       }
-       
-       /**
-        * Convert json to Object object
-        * @param <T>
-        * @param classSupplier
-        * @param json
-        * @return
-        */
-       public <T> Either<T, ResponseFormat> parseToObject(String json, Supplier<Class<T>> classSupplier) {
-               
-               try {
-                       T object = RepresentationUtils.fromRepresentation(json, classSupplier.get());
-                       return Either.left(object);
-               } catch (Exception e) {
-                       log.debug("Failed to parse json to {} object", classSupplier.get().getName(), e);
-                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       return Either.right(responseFormat);
-               }
-       }
-
-       /**
-        * Convert json to Object object
-        * @param <T>
-        * @param json
-        * @param type
-        * @return
-        */
-       public <T> Either<List<T>, ResponseFormat> parseListOfObjects(String json, Type type) {
-               try {
-                       List<T> listOfObjects = gson.fromJson(json, type);
-                       return Either.left(listOfObjects);
-               } catch (Exception e) {
-                       log.debug("Failed to parse json to {} object", type.getClass().getName(), e);
-                       ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
-                       return Either.right(responseFormat);
-               }
-       }
+    private static final Logger log = Logger.getLogger(AbstractValidationsServlet.class);
+    private static final String TOSCA_SIMPLE_YAML_PREFIX = "tosca_simple_yaml_";
+    private static final List<String> TOSCA_DEFINITION_VERSIONS = Arrays
+        .asList(TOSCA_SIMPLE_YAML_PREFIX + "1_0_0", TOSCA_SIMPLE_YAML_PREFIX + "1_1_0", "tosca_simple_profile_for_nfv_1_0_0",
+            TOSCA_SIMPLE_YAML_PREFIX + "1_0", TOSCA_SIMPLE_YAML_PREFIX + "1_1", TOSCA_SIMPLE_YAML_PREFIX + "1_2", TOSCA_SIMPLE_YAML_PREFIX + "1_3");
+    private static final List<String> TOSCA_YML_CSAR_VALID_SUFFIX = Arrays.asList(".yml", ".yaml", ".csar", ".meta");
+    private static final String INVALID_JSON_WAS_RECEIVED = "Invalid json was received.";
+    private static final String AUDIT_BEFORE_SENDING_RESPONSE = "audit before sending response";
+    private static final String VALIDATE_USER_ROLE = "validate user role";
+    private static final String USER_IS_NOT_IN_APPROPRIATE_ROLE_TO_PERFORM_ACTION = "user is not in appropriate role to perform action";
+    protected final ComponentInstanceBusinessLogic componentInstanceBusinessLogic;
+    protected ServletUtils servletUtils;
+    protected ResourceImportManager resourceImportManager;
+    protected ServiceImportManager serviceImportManager;
+
+    protected AbstractValidationsServlet(ComponentInstanceBusinessLogic componentInstanceBL,
+                                         ComponentsUtils componentsUtils, ServletUtils servletUtils, ResourceImportManager resourceImportManager) {
+        super(componentsUtils);
+        this.servletUtils = servletUtils;
+        this.resourceImportManager = resourceImportManager;
+        this.componentInstanceBusinessLogic = componentInstanceBL;
+    }
+
+    public static void extractZipContents(Wrapper<String> yamlStringWrapper, File file) throws ZipException {
+        final Map<String, byte[]> unzippedFolder = ZipUtils.readZip(file, false);
+        String ymlName = unzippedFolder.keySet().iterator().next();
+        fillToscaTemplateFromZip(yamlStringWrapper, ymlName, file);
+    }
+
+    private static void fillToscaTemplateFromZip(final Wrapper<String> yamlStringWrapper, final String payloadName, final File file)
+        throws ZipException {
+        final Map<String, byte[]> unzippedFolder = ZipUtils.readZip(file, false);
+        final byte[] yamlFileInBytes = unzippedFolder.get(payloadName);
+        final String yamlAsString = new String(yamlFileInBytes, StandardCharsets.UTF_8);
+        log.debug("received yaml: {}", yamlAsString);
+        yamlStringWrapper.setInnerElement(yamlAsString);
+    }
+
+    protected void init() {
+    }
+
+    protected synchronized void initSpringFromContext() {
+        if (serviceImportManager == null) {
+            ServletContext context = servletRequest.getSession().getServletContext();
+            WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context
+                .getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
+            WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
+            serviceImportManager = webApplicationContext.getBean(ServiceImportManager.class);
+        }
+    }
+
+    protected void validateResourceDoesNotExist(Wrapper<Response> responseWrapper, User user, String resourceName) {
+        if (resourceImportManager.isResourceExist(resourceName)) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESOURCE_ALREADY_EXISTS);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, resourceName, AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void validateUserExist(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, String userUserId) {
+        log.debug("get user {} from DB", userUserId);
+        // get user details
+        if (userUserId == null) {
+            log.info("user userId is null");
+            Response response = returnMissingInformation(new User());
+            responseWrapper.setInnerElement(response);
+        } else {
+            UserBusinessLogic userAdmin = getServletUtils().getUserAdmin();
+            try {
+                User user = userAdmin.getUser(userUserId);
+                userWrapper.setInnerElement(user);
+            } catch (ComponentException ce) {
+                log.info("user is not listed. userId={}", userUserId);
+                User user = new User();
+                user.setUserId(userUserId);
+                Response response = returnMissingInformation(user);
+                responseWrapper.setInnerElement(response);
+            }
+        }
+    }
+
+    protected Response returnMissingInformation(User user) {
+        ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_INFORMATION);
+        getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
+        return buildErrorResponse(responseFormat);
+    }
+
+    protected void validateDataNotNull(Wrapper<Response> responseWrapper, Object... dataParams) {
+        for (Object dataElement : dataParams) {
+            if (dataElement == null) {
+                log.info("Invalid body was received.");
+                Response response = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+                responseWrapper.setInnerElement(response);
+                break;
+            }
+        }
+    }
+
+    protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user) {
+        log.debug(VALIDATE_USER_ROLE);
+        if (!user.getRole().equals(Role.ADMIN.name()) && !user.getRole().equals(Role.DESIGNER.name())) {
+            log.info(USER_IS_NOT_IN_APPROPRIATE_ROLE_TO_PERFORM_ACTION);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
+            log.debug(AUDIT_BEFORE_SENDING_RESPONSE);
+            getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
+            Response response = buildErrorResponse(responseFormat);
+            errorResponseWrapper.setInnerElement(response);
+        }
+    }
+
+    protected void validateZip(final Wrapper<Response> responseWrapper, final File zipFile, final String payloadName) {
+        if (StringUtils.isEmpty(payloadName)) {
+            log.info("Invalid JSON was received. Payload name is empty");
+            final Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+            return;
+        }
+        final Map<String, byte[]> unzippedFolder;
+        try {
+            unzippedFolder = ZipUtils.readZip(zipFile, false);
+        } catch (final ZipException e) {
+            log.error("Could not read ZIP file '{}' for validation", zipFile.getName(), e);
+            final Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+            return;
+        }
+        if (!unzippedFolder.containsKey(payloadName)) {
+            log.info("Could no find payload '{}' in ZIP file '{}'", payloadName, zipFile.getName());
+            final Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void validateCsar(final Wrapper<Response> responseWrapper, final File csarFile, final String payloadName) {
+        if (StringUtils.isEmpty(payloadName)) {
+            log.info("Invalid JSON was received. Payload name is empty");
+            Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+            return;
+        }
+        final Map<String, byte[]> unzippedFolder;
+        try {
+            unzippedFolder = ZipUtils.readZip(csarFile, false);
+        } catch (final ZipException e) {
+            log.error("Could not read CSAR file '{}' for validation", csarFile.getName(), e);
+            final Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+            return;
+        }
+        if (unzippedFolder.isEmpty()) {
+            log.info("The CSAR file is empty");
+            Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void fillZipContents(Wrapper<String> yamlStringWrapper, File file) throws ZipException {
+        extractZipContents(yamlStringWrapper, file);
+    }
+
+    protected void fillPayloadDataFromFile(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfoWrapper, File file) {
+        try (InputStream fileInputStream = new FileInputStream(file)) {
+            byte[] data = new byte[(int) file.length()];
+            if (fileInputStream.read(data) == -1) {
+                log.info(INVALID_JSON_WAS_RECEIVED);
+                ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+                Response errorResp = buildErrorResponse(responseFormat);
+                responseWrapper.setInnerElement(errorResp);
+            }
+            String payloadData = Base64.encodeBase64String(data);
+            uploadResourceInfoWrapper.setPayloadData(payloadData);
+        } catch (IOException e) {
+            log.info("Invalid json was received or Error while closing input Stream.");
+            log.debug("Invalid json was received or Error while closing input Stream. {}", e.getMessage(), e);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            Response errorResp = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResp);
+        }
+    }
+
+    protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user, ResourceAuthorityTypeEnum resourceAuthority) {
+        log.debug(VALIDATE_USER_ROLE);
+        if (resourceAuthority == ResourceAuthorityTypeEnum.NORMATIVE_TYPE_BE) {
+            if (!user.getRole().equals(Role.ADMIN.name())) {
+                log.info(USER_IS_NOT_IN_APPROPRIATE_ROLE_TO_PERFORM_ACTION);
+                ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
+                log.debug(AUDIT_BEFORE_SENDING_RESPONSE);
+                getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
+                Response response = buildErrorResponse(responseFormat);
+                errorResponseWrapper.setInnerElement(response);
+            }
+        } else {
+            validateUserRole(errorResponseWrapper, user);
+        }
+    }
+
+    protected void validateAndFillResourceJson(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, User user,
+                                               ResourceAuthorityTypeEnum resourceAuthorityEnum, String resourceInfo) {
+        boolean isValid;
+        try {
+            log.debug("The received json is {}", resourceInfo);
+            UploadResourceInfo resourceInfoObject = gson.fromJson(resourceInfo, UploadResourceInfo.class);
+            if (resourceInfoObject == null) {
+                isValid = false;
+            } else {
+                resourceInfoObject.setNormative(!resourceAuthorityEnum.isUserTypeResource());
+                if (!resourceAuthorityEnum.isBackEndImport()) {
+                    isValid = resourceInfoObject.getPayloadName() != null && !resourceInfoObject.getPayloadName().isEmpty();
+                    //only resource name is checked
+                } else {
+                    isValid = true;
+                }
+                uploadResourceInfoWrapper.setInnerElement(resourceInfoObject);
+            }
+        } catch (JsonSyntaxException e) {
+            log.debug("Invalid json was received. {}", e.getMessage(), e);
+            isValid = false;
+        }
+        if (!isValid) {
+            log.info(INVALID_JSON_WAS_RECEIVED);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
+            Response errorResp = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResp);
+        }
+    }
+
+    protected void validateAuthorityType(Wrapper<Response> responseWrapper, String authorityType) {
+        log.debug("The received authority type is {}", authorityType);
+        ResourceAuthorityTypeEnum authorityTypeEnum = ResourceAuthorityTypeEnum.findByUrlPath(authorityType);
+        if (authorityTypeEnum == null) {
+            log.info("Invalid authority type was received.");
+            Response errorResp = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            responseWrapper.setInnerElement(errorResp);
+        }
+    }
+
+    public ServletUtils getServletUtils() {
+        return servletUtils;
+    }
+
+    public Gson getGson() {
+        return getServletUtils().getGson();
+    }
+
+    @Override
+    public ComponentsUtils getComponentsUtils() {
+        return getServletUtils().getComponentsUtils();
+    }
+
+    protected void validatePayloadIsTosca(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user, String toscaPayload) {
+        log.debug("checking payload is valid tosca");
+        boolean isValid;
+        Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
+        Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils
+            .findFirstToscaStringElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOSCA_VERSION);
+        if (findFirstToscaStringElement.isRight()) {
+            isValid = false;
+        } else {
+            String defenitionVersionFound = findFirstToscaStringElement.left().value();
+            if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
+                isValid = false;
+            } else {
+                isValid = TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
+            }
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void validatePayloadIsYml(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo,
+                                        String toscaTamplatePayload) {
+        log.debug("checking tosca template is valid yml");
+        YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
+        boolean isYamlValid = yamlConvertor.isValidYaml(toscaTamplatePayload.getBytes());
+        if (!isYamlValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    /**
+     * Gets the Resource type from the given node type name.
+     *
+     * @param nodeTypeFullName - Node type Name
+     * @return Resource Type name
+     */
+    private String getResourceType(final String nodeTypeFullName) {
+        final Optional<String> nodeTypeNamePrefix = getNodeTypeNamePrefix(nodeTypeFullName);
+        if (nodeTypeNamePrefix.isPresent()) {
+            final String nameWithouNamespacePrefix = nodeTypeFullName.substring(nodeTypeNamePrefix.get().length());
+            final String[] findTypes = nameWithouNamespacePrefix.split("\\.");
+            if (findTypes.length > 0) {
+                final ResourceTypeEnum resourceType = ResourceTypeEnum.getType(findTypes[0].toUpperCase());
+                if (resourceType != null) {
+                    return resourceType.name();
+                }
+            }
+        }
+        return ResourceTypeEnum.VFC.name();
+    }
+
+    /**
+     * Extracts the Node Type Name prefix from the given Node Type Name.
+     *
+     * @param nodeName - Node Type Name
+     * @return Node Type Name prefix
+     */
+    private Optional<String> getNodeTypeNamePrefix(final String nodeName) {
+        final List<String> definedNodeTypeNamespaceList = ConfigurationManager.getConfigurationManager().getConfiguration()
+            .getDefinedResourceNamespace();
+        for (final String validNamespace : definedNodeTypeNamespaceList) {
+            if (nodeName.startsWith(validNamespace)) {
+                return Optional.of(validNamespace);
+            }
+        }
+        return Optional.empty();
+    }
+
+    protected void validatePayloadNameSpace(final Wrapper<Response> responseWrapper, final UploadResourceInfo resourceInfo, final User user,
+                                            final String toscaPayload) {
+        boolean isValid;
+        String namespace = "";
+        final Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
+        final Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils
+            .findFirstToscaMapElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.NODE_TYPES);
+        if (toscaElement.isRight() || toscaElement.left().value().size() != 1) {
+            isValid = false;
+        } else {
+            namespace = toscaElement.left().value().keySet().iterator().next();
+            isValid = getNodeTypeNamePrefix(namespace).isPresent();
+        }
+        if (!isValid) {
+            final ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_NAMESPACE);
+            final Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        } else {
+            resourceInfo.setResourceType(getResourceType(namespace));
+        }
+    }
+
+    private void validatePayloadIsSingleResource(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user,
+                                                 String toscaPayload) {
+        log.debug("checking payload contains single resource");
+        boolean isValid;
+        Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
+        Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils
+            .findFirstToscaMapElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.NODE_TYPES);
+        if (toscaElement.isRight()) {
+            isValid = false;
+        } else {
+            isValid = toscaElement.left().value().size() == 1;
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_SINGLE_RESOURCE);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    private void validatePayloadIsNotService(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo,
+                                             String toscaPayload) {
+        log.debug("checking payload is not a tosca service");
+        Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
+        Either<Object, ResultStatusEnum> toscaElement = ImportUtils
+            .findToscaElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOPOLOGY_TEMPLATE, ToscaElementTypeEnum.ALL);
+        if (toscaElement.isLeft()) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_RESOURCE_TOSCA_TEMPLATE);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    private void validateToscaTemplatePayloadName(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
+        String toscaTemplatePayloadName = uploadResourceInfo.getPayloadName();
+        boolean isValidSuffix = isToscaTemplatePayloadNameValid(toscaTemplatePayloadName);
+        if (!isValidSuffix) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_FILE_EXTENSION);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    private boolean isToscaTemplatePayloadNameValid(String toscaTemplatePayloadName) {
+        boolean isValidSuffix = false;
+        if (toscaTemplatePayloadName != null && !toscaTemplatePayloadName.isEmpty()) {
+            for (String validSuffix : TOSCA_YML_CSAR_VALID_SUFFIX) {
+                isValidSuffix = isValidSuffix || toscaTemplatePayloadName.toLowerCase().endsWith(validSuffix);
+            }
+        }
+        return isValidSuffix;
+    }
+
+    private void validateMD5(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfo, HttpServletRequest request,
+                             String resourceInfoJsonString) {
+        boolean isValid;
+        String recievedMD5 = request.getHeader(Constants.MD5_HEADER);
+        if (recievedMD5 == null) {
+            isValid = false;
+        } else {
+            String calculateMD5 = GeneralUtility.calculateMD5Base64EncodedByString(resourceInfoJsonString);
+            isValid = calculateMD5.equals(recievedMD5);
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_CHECKSUM);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    ComponentTypeEnum validateComponentType(String componentType) {
+        if (componentType == null) {
+            throw new ByActionStatusComponentException(ActionStatus.UNSUPPORTED_ERROR);
+        }
+        if (ComponentTypeEnum.RESOURCE_PARAM_NAME.equalsIgnoreCase(componentType)) {
+            return ComponentTypeEnum.RESOURCE;
+        }
+        if (ComponentTypeEnum.SERVICE_PARAM_NAME.equalsIgnoreCase(componentType)) {
+            return ComponentTypeEnum.SERVICE;
+        }
+        log.debug("Invalid componentType:{}", componentType);
+        throw new ByActionStatusComponentException(ActionStatus.UNSUPPORTED_ERROR, componentType);
+    }
+
+    ComponentTypeEnum convertToComponentType(String componentType) {
+        return validateComponentType(componentType);
+    }
+
+    private void fillToscaTemplateFromJson(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user,
+                                           UploadResourceInfo resourceInfo) {
+        if (resourceInfo.getPayloadData() == null || resourceInfo.getPayloadData().isEmpty()) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_PAYLOAD);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        } else {
+            String toscaPayload = resourceInfo.getPayloadData();
+            String decodedPayload = new String(Base64.decodeBase64(toscaPayload));
+            yamlStringWrapper.setInnerElement(decodedPayload);
+        }
+    }
+
+    void fillPayload(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, Wrapper<String> yamlStringWrapper,
+                     User user, String resourceInfoJsonString, ResourceAuthorityTypeEnum resourceAuthorityEnum, File file) throws ZipException {
+        if (responseWrapper.isEmpty()) {
+            if (resourceAuthorityEnum.isBackEndImport()) {
+                // PrePayload Validations
+                if (responseWrapper.isEmpty()) {
+                    validateDataNotNull(responseWrapper, file, resourceInfoJsonString);
+                }
+                if (!resourceAuthorityEnum.equals(ResourceAuthorityTypeEnum.CSAR_TYPE_BE)) {
+                    if (responseWrapper.isEmpty()) {
+                        validateZip(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
+                    }
+                    // Fill PayLoad From File
+                    if (responseWrapper.isEmpty()) {
+                        fillToscaTemplateFromZip(yamlStringWrapper, uploadResourceInfoWrapper.getInnerElement().getPayloadName(), file);
+                    }
+                } else {
+                    if (responseWrapper.isEmpty()) {
+                        validateCsar(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
+                    }
+                    // Fill PayLoad From File
+                    if (responseWrapper.isEmpty()) {
+                        fillPayloadDataFromFile(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), file);
+                    }
+                }
+            } else {
+                // Fill PayLoad From JSON
+                if (responseWrapper.isEmpty()) {
+                    fillToscaTemplateFromJson(responseWrapper, yamlStringWrapper, user, uploadResourceInfoWrapper.getInnerElement());
+                }
+            }
+        }
+    }
+
+    protected void specificResourceAuthorityValidations(final Wrapper<Response> responseWrapper,
+                                                        final Wrapper<UploadResourceInfo> uploadResourceInfoWrapper,
+                                                        final Wrapper<String> yamlStringWrapper, final User user, final HttpServletRequest request,
+                                                        final String resourceInfoJsonString, final ResourceAuthorityTypeEnum resourceAuthorityEnum) {
+        if (responseWrapper.isEmpty()) {
+            // UI Only Validation
+            if (!resourceAuthorityEnum.isBackEndImport()) {
+                importUIValidations(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, request, resourceInfoJsonString);
+            }
+            // User Defined Type Resources
+            if (resourceAuthorityEnum.isUserTypeResource() && !CsarValidationUtils
+                .isCsarPayloadName(uploadResourceInfoWrapper.getInnerElement().getPayloadName()) && responseWrapper.isEmpty()) {
+                validatePayloadNameSpace(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, yamlStringWrapper.getInnerElement());
+            }
+        }
+    }
+
+    void commonGeneralValidations(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper,
+                                  ResourceAuthorityTypeEnum resourceAuthorityEnum, String userId, String resourceInfoJsonString) {
+        if (responseWrapper.isEmpty()) {
+            validateUserExist(responseWrapper, userWrapper, userId);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateUserRole(responseWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateAndFillResourceJson(responseWrapper, uploadResourceInfoWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum,
+                resourceInfoJsonString);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateToscaTemplatePayloadName(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
+        }
+        if (responseWrapper.isEmpty()) {
+            validateResourceType(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
+        }
+    }
+
+    private void validateResourceType(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
+        String resourceType = uploadResourceInfo.getResourceType();
+        if (resourceType == null || !ResourceTypeEnum.containsName(resourceType)) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    private void importUIValidations(Wrapper<Response> responseWrapper, UploadResourceInfo resourceInfo, User user, HttpServletRequest request,
+                                     String resourceInfoJsonString) {
+        if (responseWrapper.isEmpty()) {
+            validateMD5(responseWrapper, user, resourceInfo, request, resourceInfoJsonString);
+        }
+        if (responseWrapper.isEmpty() && request != null && request.getMethod() != null && request.getMethod().equals("POST")) {
+            validateResourceDoesNotExist(responseWrapper, user, resourceInfo.getName());
+        }
+    }
+
+    void commonPayloadValidations(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user,
+                                  UploadResourceInfo uploadResourceInfo) {
+        if (responseWrapper.isEmpty()) {
+            validatePayloadIsYml(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
+        }
+        if (responseWrapper.isEmpty()) {
+            validatePayloadIsTosca(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
+        }
+        if (responseWrapper.isEmpty()) {
+            validatePayloadIsNotService(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
+        }
+        if (responseWrapper.isEmpty()) {
+            validatePayloadIsSingleResource(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
+        }
+    }
+
+    void handleImport(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfoObject, String yamlAsString,
+                      ResourceAuthorityTypeEnum authority, boolean createNewVersion, String resourceUniqueId) {
+        ImmutablePair<Resource, ActionStatus> createOrUpdateResponse = null;
+        Response response = null;
+        Object representation = null;
+        ImmutablePair<Resource, ActionStatus> importedResourceStatus = null;
+        if (CsarValidationUtils.isCsarPayloadName(resourceInfoObject.getPayloadName())) {
+            log.debug("import resource from csar");
+            importedResourceStatus = importResourceFromUICsar(resourceInfoObject, user, resourceUniqueId);
+        } else if (!authority.isUserTypeResource()) {
+            log.debug("import normative type resource");
+            createOrUpdateResponse =
+                resourceImportManager.importNormativeResource(yamlAsString, resourceInfoObject, user, createNewVersion, true, false);
+        } else {
+            log.debug("import user resource (not normative type)");
+            createOrUpdateResponse = resourceImportManager.importUserDefinedResource(yamlAsString, resourceInfoObject, user, false);
+        }
+        if (createOrUpdateResponse != null) {
+            importedResourceStatus = createOrUpdateResponse;
+        }
+        if (importedResourceStatus != null) {
+            try {
+                representation = RepresentationUtils.toRepresentation(importedResourceStatus.left);
+            } catch (IOException e) {
+                log.debug("Error while building resource representation : {}", e.getMessage(), e);
+            }
+            response = buildOkResponse(getComponentsUtils().getResponseFormat(importedResourceStatus.right), representation);
+        }
+        responseWrapper.setInnerElement(response);
+    }
+
+    private ImmutablePair<Resource, ActionStatus> importResourceFromUICsar(UploadResourceInfo resourceInfoObject, User user,
+                                                                           String resourceUniqueId) {
+        Resource newResource;
+        ActionStatus actionStatus;
+        Resource resource = new Resource();
+        String payloadName = resourceInfoObject.getPayloadName();
+        fillResourceFromResourceInfoObject(resource, resourceInfoObject);
+        Map<String, byte[]> csarUIPayload = getCsarFromPayload(resourceInfoObject);
+        getAndValidateCsarYaml(csarUIPayload, resource, user, payloadName);
+        if (resourceUniqueId == null || resourceUniqueId.isEmpty()) {
+            newResource = resourceImportManager.getResourceBusinessLogic()
+                .createResource(resource, AuditingActionEnum.CREATE_RESOURCE, user, csarUIPayload, payloadName);
+            actionStatus = ActionStatus.CREATED;
+        } else {
+            newResource = resourceImportManager.getResourceBusinessLogic()
+                .validateAndUpdateResourceFromCsar(resource, user, csarUIPayload, payloadName, resourceUniqueId);
+            actionStatus = ActionStatus.OK;
+        }
+        return new ImmutablePair<>(newResource, actionStatus);
+    }
+
+    protected Resource throwComponentException(ResponseFormat responseFormat) {
+        throw new ByResponseFormatComponentException(responseFormat);
+    }
+
+    private void getAndValidateCsarYaml(Map<String, byte[]> csarUIPayload, Resource resource, User user, String csarUUID) {
+        getAndValidateComponentCsarYaml(csarUIPayload, resource, user, csarUUID);
+    }
+
+    private void getAndValidateComponentCsarYaml(Map<String, byte[]> csarUIPayload, Component component, User user, String csarUUID) {
+        Either<ImmutablePair<String, String>, ResponseFormat> getToscaYamlRes = CsarValidationUtils
+            .getToscaYaml(csarUIPayload, csarUUID, getComponentsUtils(), null);
+        if (getToscaYamlRes.isRight()) {
+            ResponseFormat responseFormat = getToscaYamlRes.right().value();
+            log.debug("Error when try to get csar toscayamlFile with csar ID {}, error: {}", csarUUID, responseFormat);
+            if (component instanceof Resource) {
+                BeEcompErrorManager.getInstance().logBeDaoSystemError("Creating resource from CSAR: fetching CSAR with id " + csarUUID + " failed");
+                getComponentsUtils().auditResource(responseFormat, user, (Resource) component, AuditingActionEnum.CREATE_RESOURCE);
+            } else {
+                BeEcompErrorManager.getInstance().logBeDaoSystemError("Creating service from CSAR: fetching CSAR with id " + csarUUID + " failed");
+            }
+            throwComponentException(responseFormat);
+        }
+        String toscaYaml = getToscaYamlRes.left().value().getValue();
+        log.debug("checking tosca template is valid yml");
+        YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
+        boolean isValid = yamlConvertor.isValidYaml(toscaYaml.getBytes());
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
+            if (component instanceof Resource) {
+                getComponentsUtils().auditResource(responseFormat, user, (Resource) component, AuditingActionEnum.IMPORT_RESOURCE);
+            }
+            throwComponentException(responseFormat);
+        }
+        log.debug("checking payload is valid tosca");
+        Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaYaml);
+        Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils
+            .findFirstToscaStringElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOSCA_VERSION);
+        if (findFirstToscaStringElement.isRight()) {
+            isValid = false;
+        } else {
+            String defenitionVersionFound = findFirstToscaStringElement.left().value();
+            if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
+                isValid = false;
+            } else {
+                isValid = TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
+            }
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
+            if (component instanceof Resource) {
+                log.debug("enter getAndValidateComponentCsarYaml,component instanceof Resource");
+                getComponentsUtils().auditResource(responseFormat, user, (Resource) component, AuditingActionEnum.IMPORT_RESOURCE);
+            }
+            throwComponentException(responseFormat);
+        }
+    }
+
+    private void fillResourceFromResourceInfoObject(Resource resource, UploadResourceInfo resourceInfoObject) {
+        resourceImportManager.populateResourceMetadata(resourceInfoObject, resource);
+        fillArtifacts(resource, resourceInfoObject);
+    }
+
+    private void fillArtifacts(Resource resource, UploadResourceInfo resourceInfoObject) {
+        if (resource != null && resourceInfoObject != null) {
+            List<UploadArtifactInfo> artifactList = resourceInfoObject.getArtifactList();
+            if (artifactList != null) {
+                Map<String, ArtifactDefinition> artifactsHM = new HashMap<>();
+                buildArtifactsHM(artifactList, artifactsHM);
+                resource.setArtifacts(artifactsHM);
+            }
+        }
+    }
+
+    private void buildArtifactsHM(List<UploadArtifactInfo> artifactList, Map<String, ArtifactDefinition> artifactsHM) {
+        for (UploadArtifactInfo artifact : artifactList) {
+            ArtifactDefinition artifactDef = new ArtifactDefinition();
+            artifactDef.setArtifactName(artifact.getArtifactName());
+            artifactDef.setArtifactType(artifact.getArtifactType().getType());
+            artifactDef.setDescription(artifact.getArtifactDescription());
+            artifactDef.setPayloadData(artifact.getArtifactData());
+            artifactDef.setArtifactRef(artifact.getArtifactPath());
+            artifactsHM.put(artifactDef.getArtifactName(), artifactDef);
+        }
+    }
+
+    private Map<String, byte[]> getCsarFromPayload(UploadResourceInfo innerElement) {
+        String csarUUID = innerElement.getPayloadName();
+        String payloadData = innerElement.getPayloadData();
+        return getComponentCsarFromPayload(csarUUID, payloadData);
+    }
+
+    private Map<String, byte[]> getComponentCsarFromPayload(String csarUUID, String payloadData) {
+        if (payloadData == null) {
+            log.info("Failed to decode received csar {}", csarUUID);
+            throw new ByActionStatusComponentException(ActionStatus.CSAR_NOT_FOUND, csarUUID);
+        }
+        byte[] decodedPayload = Base64.decodeBase64(payloadData.getBytes(StandardCharsets.UTF_8));
+        if (decodedPayload == null) {
+            log.info("Failed to decode received csar {}", csarUUID);
+            throw new ByActionStatusComponentException(ActionStatus.CSAR_NOT_FOUND, csarUUID);
+        }
+        Map<String, byte[]> csar = null;
+        try {
+            csar = ZipUtils.readZip(decodedPayload, false);
+        } catch (final ZipException e) {
+            log.info("Failed to unzip received csar {}", csarUUID, e);
+        }
+        return csar;
+    }
+
+    void validateInputStream(final HttpServletRequest request, Wrapper<String> dataWrapper, Wrapper<ResponseFormat> errorWrapper) throws IOException {
+        InputStream inputStream = request.getInputStream();
+        byte[] bytes = IOUtils.toByteArray(inputStream);
+        if (bytes == null || bytes.length == 0) {
+            log.info("Empty body was sent.");
+            errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+        } else {
+            dataWrapper.setInnerElement(new String(bytes, StandardCharsets.UTF_8));
+        }
+    }
+
+    <T> void validateClassParse(String data, Wrapper<T> parsedClassWrapper, Supplier<Class<T>> classGen, Wrapper<ResponseFormat> errorWrapper) {
+        try {
+            T parsedClass = gson.fromJson(data, classGen.get());
+            if (parsedClass == null) {
+                errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+            } else {
+                parsedClassWrapper.setInnerElement(parsedClass);
+            }
+        } catch (JsonSyntaxException e) {
+            log.debug("Failed to decode received {} {} to object.", classGen.get().getName(), data, e);
+            errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
+        }
+    }
+
+    void validateComponentInstanceBusinessLogic(HttpServletRequest request, String containerComponentType,
+                                                Wrapper<ComponentInstanceBusinessLogic> blWrapper, Wrapper<ResponseFormat> errorWrapper) {
+        ServletContext context = request.getSession().getServletContext();
+        ComponentInstanceBusinessLogic componentInstanceLogic = getComponentInstanceBL(context);
+        if (componentInstanceLogic == null) {
+            log.debug("Unsupported component type {}", containerComponentType);
+            errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.UNSUPPORTED_ERROR, containerComponentType));
+        } else {
+            blWrapper.setInnerElement(componentInstanceLogic);
+        }
+    }
+
+    <T> Response buildResponseFromElement(Wrapper<ResponseFormat> errorWrapper, Wrapper<T> attributeWrapper) throws IOException {
+        Response response;
+        if (errorWrapper.isEmpty()) {
+            ObjectMapper mapper = new ObjectMapper();
+            String result = mapper.writeValueAsString(attributeWrapper.getInnerElement());
+            response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result);
+        } else {
+            response = buildErrorResponse(errorWrapper.getInnerElement());
+        }
+        return response;
+    }
+
+    protected void validateXECOMPInstanceIDHeader(String instanceIdHeader, Wrapper<ResponseFormat> responseWrapper) {
+        ResponseFormat responseFormat;
+        if (StringUtils.isEmpty(instanceIdHeader)) {
+            log.debug("Missing X-ECOMP-InstanceID header");
+            responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_X_ECOMP_INSTANCE_ID);
+            responseWrapper.setInnerElement(responseFormat);
+        }
+    }
+
+    protected void validateHttpCspUserIdHeader(String header, Wrapper<ResponseFormat> responseWrapper) {
+        ResponseFormat responseFormat;
+        if (StringUtils.isEmpty(header)) {
+            log.debug("MissingUSER_ID");
+            responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_USER_ID);
+            responseWrapper.setInnerElement(responseFormat);
+        }
+    }
+
+    <T> Either<T, ResponseFormat> parseToObject(String json, Supplier<Class<T>> classSupplier) {
+        try {
+            T object = RepresentationUtils.fromRepresentation(json, classSupplier.get());
+            return Either.left(object);
+        } catch (Exception e) {
+            log.debug("Failed to parse json to {} object", classSupplier.get().getName(), e);
+            ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_CONTENT);
+            return Either.right(responseFormat);
+        }
+    }
+
+    public <T> Either<List<T>, ResponseFormat> parseListOfObjects(String json, Type type) {
+        try {
+            List<T> listOfObjects = gson.fromJson(json, type);
+            return Either.left(listOfObjects);
+        } catch (Exception e) {
+            log.debug("Failed to parse json to {} object", type.getClass().getName(), e);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            return Either.right(responseFormat);
+        }
+    }
+
+    protected void validateNotEmptyBody(String data) {
+        if (StringUtils.isEmpty(data)) {
+            throw new ByActionStatusComponentException(ActionStatus.MISSING_BODY);
+        }
+    }
+
+    protected void commonServiceGeneralValidations(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper,
+                                                   Wrapper<UploadServiceInfo> uploadServiceInfoWrapper, ServiceAuthorityTypeEnum serviceAuthorityEnum,
+                                                   String userUserId, String serviceInfoJsonString) {
+        if (responseWrapper.isEmpty()) {
+            validateUserExist(responseWrapper, userWrapper, userUserId);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateUserRole(responseWrapper, userWrapper.getInnerElement(), serviceAuthorityEnum);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateAndFillServiceJson(responseWrapper, uploadServiceInfoWrapper, serviceAuthorityEnum,
+                serviceInfoJsonString);
+        }
+        if (responseWrapper.isEmpty()) {
+            validateToscaTemplatePayloadName(responseWrapper, uploadServiceInfoWrapper.getInnerElement());
+        }
+    }
+
+    protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user, ServiceAuthorityTypeEnum serviceAuthority) {
+        log.debug(VALIDATE_USER_ROLE);
+        if (serviceAuthority == ServiceAuthorityTypeEnum.NORMATIVE_TYPE_BE) {
+            if (!user.getRole().equals(Role.ADMIN.name())) {
+                log.info(USER_IS_NOT_IN_APPROPRIATE_ROLE_TO_PERFORM_ACTION);
+                ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
+                log.debug(AUDIT_BEFORE_SENDING_RESPONSE);
+                Response response = buildErrorResponse(responseFormat);
+                errorResponseWrapper.setInnerElement(response);
+            }
+        } else {
+            validateUserRole(errorResponseWrapper, user);
+        }
+    }
+
+    protected void validateAndFillServiceJson(Wrapper<Response> responseWrapper, Wrapper<UploadServiceInfo> uploadServiceInfoWrapper,
+                                              ServiceAuthorityTypeEnum serviceAuthorityEnum, String serviceInfo) {
+        boolean isValid;
+        try {
+            log.debug("The received json is {}", serviceInfo);
+            UploadServiceInfo serviceInfoObject = gson.fromJson(serviceInfo, UploadServiceInfo.class);
+            if (serviceInfoObject == null) {
+                isValid = false;
+            } else {
+                if (!serviceAuthorityEnum.isBackEndImport()) {
+                    isValid = serviceInfoObject.getPayloadName() != null && !serviceInfoObject.getPayloadName().isEmpty();
+                    //only service name is checked
+                } else {
+                    isValid = true;
+                }
+                uploadServiceInfoWrapper.setInnerElement(serviceInfoObject);
+                log.debug("get isValid:{},serviceInfoObject get name:{},get tags:{},getContactId:{}," + " getPayloadName:{}", isValid,
+                    uploadServiceInfoWrapper.getInnerElement().getName(), uploadServiceInfoWrapper.getInnerElement().getTags(),
+                    uploadServiceInfoWrapper.getInnerElement().getContactId(), uploadServiceInfoWrapper.getInnerElement().getPayloadName());
+            }
+        } catch (JsonSyntaxException e) {
+            log.debug("enter validateAndFillServiceJson,Invalid json was received. {}", e.getMessage(), e);
+            isValid = false;
+        }
+        if (!isValid) {
+            log.info(INVALID_JSON_WAS_RECEIVED);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            Response errorResp = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResp);
+        }
+    }
+
+    protected void validateToscaTemplatePayloadName(Wrapper<Response> responseWrapper, UploadServiceInfo uploadServiceInfo) {
+        String toscaTemplatePayloadName = uploadServiceInfo.getPayloadName();
+        boolean isValidSuffix = isToscaTemplatePayloadNameValid(toscaTemplatePayloadName);
+        if (!isValidSuffix) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_FILE_EXTENSION);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void specificServiceAuthorityValidations(Wrapper<Response> responseWrapper, Wrapper<UploadServiceInfo> uploadServiceInfoWrapper,
+                                                       Wrapper<String> yamlStringWrapper, HttpServletRequest request,
+                                                       String serviceInfoJsonString, ServiceAuthorityTypeEnum serviceAuthorityEnum) {
+        if (responseWrapper.isEmpty()) {
+            // UI Only Validation
+            if (!serviceAuthorityEnum.isBackEndImport()) {
+                importUIValidations(responseWrapper, uploadServiceInfoWrapper.getInnerElement(), request, serviceInfoJsonString);
+            }
+            // User Defined Type Services
+            if (serviceAuthorityEnum.isUserTypeService()
+                && !CsarValidationUtils.isCsarPayloadName(uploadServiceInfoWrapper.getInnerElement().getPayloadName())
+                && responseWrapper.isEmpty()) {
+                validatePayloadNameSpace(responseWrapper, uploadServiceInfoWrapper.getInnerElement(), yamlStringWrapper.getInnerElement());
+            }
+        }
+    }
+
+    protected void importUIValidations(Wrapper<Response> responseWrapper, UploadServiceInfo serviceInfo, HttpServletRequest request,
+                                       String serviceInfoJsonString) {
+        if (responseWrapper.isEmpty()) {
+            validateMD5(responseWrapper, request, serviceInfoJsonString);
+        }
+        if (responseWrapper.isEmpty() && request != null && request.getMethod() != null && request.getMethod().equals("POST")) {
+            validateServiceDoesNotExist(responseWrapper, serviceInfo.getName());
+        }
+    }
+
+    protected void validatePayloadNameSpace(Wrapper<Response> responseWrapper, UploadServiceInfo serviceInfo, String toscaPayload) {
+        boolean isValid;
+        String nameSpace = "";
+        Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
+        Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils
+            .findFirstToscaMapElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.NODE_TYPES);
+        if (toscaElement.isRight() || toscaElement.left().value().size() != 1) {
+            isValid = false;
+        } else {
+            nameSpace = toscaElement.left().value().keySet().iterator().next();
+            isValid = nameSpace.startsWith(Constants.USER_DEFINED_SERVICE_NAMESPACE_PREFIX);
+            log.debug("enter validatePayloadNameSpace,get nameSpace:{},get Valid is:{}", nameSpace, isValid);
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_SERVICE_NAMESPACE);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResponse);
+        } else {
+            String str1 = nameSpace.substring(Constants.USER_DEFINED_SERVICE_NAMESPACE_PREFIX.length());
+            String[] findTypes = str1.split("\\.");
+            if (ResourceTypeEnum.containsName(findTypes[0].toUpperCase())) {
+                String type = findTypes[0].toUpperCase();
+                serviceInfo.setServiceType(type);
+            } else {
+                serviceInfo.setServiceType(ResourceTypeEnum.SERVICE.name());
+            }
+        }
+    }
+
+    protected void validateMD5(Wrapper<Response> responseWrapper, HttpServletRequest request,
+                               String serviceInfoJsonString) {
+        boolean isValid;
+        String recievedMD5 = request.getHeader(Constants.MD5_HEADER);
+        if (recievedMD5 == null) {
+            isValid = false;
+        } else {
+            String calculateMD5 = GeneralUtility.calculateMD5Base64EncodedByString(serviceInfoJsonString);
+            isValid = calculateMD5.equals(recievedMD5);
+        }
+        if (!isValid) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_SERVICE_CHECKSUM);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void validateServiceDoesNotExist(Wrapper<Response> responseWrapper, String serviceName) {
+        if (serviceImportManager.isServiceExist(serviceName)) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.SERVICE_ALREADY_EXISTS);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResponse);
+        }
+    }
+
+    protected void handleImportService(Wrapper<Response> responseWrapper, User user, UploadServiceInfo serviceInfoObject) {
+        Response response = null;
+        ImmutablePair<Service, ActionStatus> importedServiceStatus = null;
+        if (CsarValidationUtils.isCsarPayloadName(serviceInfoObject.getPayloadName())) {
+            log.debug("import service from csar");
+            importedServiceStatus = importServiceFromUICsar(serviceInfoObject, user);
+        }
+        if (importedServiceStatus != null) {
+            Object representation = null;
+            try {
+                representation = RepresentationUtils.toRepresentation(importedServiceStatus.left);
+            } catch (IOException e) {
+                log.debug("Error while building service representation : {}", e.getMessage(), e);
+            }
+            response = buildOkResponse(getComponentsUtils().getResponseFormat(importedServiceStatus.right), representation);
+        }
+        responseWrapper.setInnerElement(response);
+    }
+
+    private ImmutablePair<Service, ActionStatus> importServiceFromUICsar(UploadServiceInfo serviceInfoObject, User user) {
+        Service service = new Service();
+        String payloadName = serviceInfoObject.getPayloadName();
+        fillServiceFromServiceInfoObject(service, serviceInfoObject);
+        Map<String, byte[]> csarUIPayloadRes = getCsarFromPayload(serviceInfoObject);
+        getAndValidateCsarYaml(csarUIPayloadRes, service, user, payloadName);
+        final Service newService = serviceImportManager.getServiceImportBusinessLogic()
+            .createService(service, AuditingActionEnum.CREATE_SERVICE, user, csarUIPayloadRes, payloadName);
+        return new ImmutablePair<>(newService, ActionStatus.CREATED);
+    }
+
+    private void fillServiceFromServiceInfoObject(Service service, UploadServiceInfo serviceInfoObject) {
+        serviceImportManager.populateServiceMetadata(serviceInfoObject, service);
+        fillArtifacts(service, serviceInfoObject);
+    }
+
+    private Map<String, byte[]> getCsarFromPayload(UploadServiceInfo innerElement) {
+        String csarUUID = innerElement.getPayloadName();
+        String payloadData = innerElement.getPayloadData();
+        return getComponentCsarFromPayload(csarUUID, payloadData);
+    }
+
+    private void getAndValidateCsarYaml(Map<String, byte[]> csarUIPayload, Service service, User user, String csarUUID) {
+        getAndValidateComponentCsarYaml(csarUIPayload, service, user, csarUUID);
+    }
+
+    private void fillArtifacts(Service service, UploadServiceInfo serviceInfoObject) {
+        if (service != null && serviceInfoObject != null) {
+            List<UploadArtifactInfo> artifactList = serviceInfoObject.getArtifactList();
+            if (artifactList != null) {
+                Map<String, ArtifactDefinition> artifactsHM = new HashMap<>();
+                buildArtifactsHM(artifactList, artifactsHM);
+                service.setArtifacts(artifactsHM);
+            }
+        }
+    }
+
+    /**
+     * import service payload to postman
+     *
+     * @param responseWrapper
+     * @param uploadServiceInfoWrapper
+     * @param yamlStringWrapper
+     * @param user
+     * @param serviceInfoJsonString
+     * @param serviceAuthorityEnum
+     * @param file
+     * @throws ZipException
+     */
+    protected void fillServicePayload(Wrapper<Response> responseWrapper, Wrapper<UploadServiceInfo> uploadServiceInfoWrapper,
+                                      Wrapper<String> yamlStringWrapper, User user, String serviceInfoJsonString,
+                                      ServiceAuthorityTypeEnum serviceAuthorityEnum, File file) throws ZipException {
+        log.debug("enter fillServicePayload");
+        if (responseWrapper.isEmpty()) {
+            log.debug("enter fillServicePayload,get responseWrapper is empty");
+            if (serviceAuthorityEnum.isBackEndImport()) {
+                // PrePayload Validations
+                if (responseWrapper.isEmpty()) {
+                    validateDataNotNull(responseWrapper, file, serviceInfoJsonString);
+                }
+                if (responseWrapper.isEmpty()) {
+                    log.debug("enter fillServicePayload,responseWrapper is empty");
+                }
+                if (!serviceAuthorityEnum.equals(ServiceAuthorityTypeEnum.CSAR_TYPE_BE)) {
+                    if (responseWrapper.isEmpty()) {
+                        validateZip(responseWrapper, file, uploadServiceInfoWrapper.getInnerElement().getPayloadName());
+                    }
+                    // Fill PayLoad From File
+                    if (responseWrapper.isEmpty()) {
+                        fillToscaTemplateFromZip(yamlStringWrapper, uploadServiceInfoWrapper.getInnerElement().getPayloadName(), file);
+                    }
+                } else {
+                    log.debug("enter fillServicePayload,ServiceAuthorityTypeEnum is CSAR_TYPE_BE");
+                    if (responseWrapper.isEmpty()) {
+                        validateCsar(responseWrapper, file, uploadServiceInfoWrapper.getInnerElement().getPayloadName());
+                    }
+                    if (!responseWrapper.isEmpty()) {
+                        log.debug("enter fillServicePayload,get responseWrapper:{}", responseWrapper);
+                    }
+                    // Fill PayLoad From File
+                    if (responseWrapper.isEmpty()) {
+                        fillServicePayloadDataFromFile(responseWrapper, uploadServiceInfoWrapper.getInnerElement(), file);
+                    }
+                }
+            } else {
+                // Fill PayLoad From JSON
+                if (responseWrapper.isEmpty()) {
+                    fillServiceToscaTemplateFromJson(responseWrapper, yamlStringWrapper, user, uploadServiceInfoWrapper.getInnerElement());
+                }
+            }
+        }
+    }
+
+    protected void fillServicePayloadDataFromFile(Wrapper<Response> responseWrapper, UploadServiceInfo uploadServiceInfoWrapper, File file) {
+        try (InputStream fileInputStream = new FileInputStream(file)) {
+            log.debug("enter fillServicePayloadDataFromFile");
+            byte[] data = new byte[(int) file.length()];
+            if (fileInputStream.read(data) == -1) {
+                log.info(INVALID_JSON_WAS_RECEIVED);
+                ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+                Response errorResp = buildErrorResponse(responseFormat);
+                responseWrapper.setInnerElement(errorResp);
+            }
+            String payloadData = Base64.encodeBase64String(data);
+            uploadServiceInfoWrapper.setPayloadData(payloadData);
+            log.debug("enter fillServicePayloadDataFromFile,get payloadData:{}", uploadServiceInfoWrapper.getPayloadData());
+            log.debug("enter fillServicePayloadDataFromFile,get uploadService:{}", uploadServiceInfoWrapper);
+        } catch (IOException e) {
+            log.info("Invalid json was received or Error while closing input Stream.");
+            log.debug("Invalid json was received or Error while closing input Stream. {}", e.getMessage(), e);
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
+            Response errorResp = buildErrorResponse(responseFormat);
+            responseWrapper.setInnerElement(errorResp);
+        }
+    }
+
+    private void fillServiceToscaTemplateFromJson(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user,
+                                                  UploadServiceInfo serviceInfo) {
+        if (serviceInfo.getPayloadData() == null || serviceInfo.getPayloadData().isEmpty()) {
+            ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_PAYLOAD);
+            Response errorResponse = buildErrorResponse(responseFormat);
+            getComponentsUtils().auditResource(responseFormat, user, serviceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
+            responseWrapper.setInnerElement(errorResponse);
+        } else {
+            String toscaPayload = serviceInfo.getPayloadData();
+            String decodedPayload = new String(Base64.decodeBase64(toscaPayload));
+            yamlStringWrapper.setInnerElement(decodedPayload);
+        }
+    }
 }