Sync Integ to Master
[sdc.git] / catalog-be / src / main / java / org / openecomp / sdc / be / components / impl / ResourceImportManager.java
index 7ed90ce..97dcf35 100644 (file)
 
 package org.openecomp.sdc.be.components.impl;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.EnumMap;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.function.Function;
-import java.util.regex.Pattern;
-import java.util.stream.Collectors;
-
-import javax.servlet.ServletContext;
-
+import fj.data.Either;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
-import org.openecomp.sdc.be.auditing.api.IAuditingManager;
+import org.openecomp.sdc.be.auditing.api.AuditEventFactory;
+import org.openecomp.sdc.be.auditing.impl.AuditingManager;
+import org.openecomp.sdc.be.auditing.impl.resourceadmin.AuditImportResourceAdminEventFactory;
 import org.openecomp.sdc.be.components.impl.ArtifactsBusinessLogic.ArtifactOperationEnum;
 import org.openecomp.sdc.be.components.impl.ImportUtils.Constants;
 import org.openecomp.sdc.be.components.impl.ImportUtils.ResultStatusEnum;
@@ -71,8 +58,9 @@ import org.openecomp.sdc.be.model.operations.api.IGraphLockOperation;
 import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
 import org.openecomp.sdc.be.model.operations.impl.CapabilityTypeOperation;
 import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
-import org.openecomp.sdc.common.config.EcompErrorName;
-import org.openecomp.sdc.common.datastructure.AuditingFieldsKeysEnum;
+import org.openecomp.sdc.be.resources.data.auditing.model.CommonAuditData;
+import org.openecomp.sdc.be.resources.data.auditing.model.ResourceAuditData;
+import org.openecomp.sdc.common.util.ThreadLocalsHolder;
 import org.openecomp.sdc.common.util.ValidationUtils;
 import org.openecomp.sdc.exception.ResponseFormat;
 import org.slf4j.Logger;
@@ -82,882 +70,919 @@ import org.springframework.stereotype.Component;
 import org.springframework.web.context.WebApplicationContext;
 import org.yaml.snakeyaml.Yaml;
 
-import fj.data.Either;
+import javax.servlet.ServletContext;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+import java.util.function.Function;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 @Component("resourceImportManager")
 public class ResourceImportManager {
 
-       private ServletContext servletContext;
-
-       @Autowired
-       private IAuditingManager auditingManager;
-
-       @Autowired
-       private ResourceBusinessLogic resourceBusinessLogic;
-
-       @Autowired
-       private IGraphLockOperation graphLockOperation;
-
-       @Autowired
-       protected ComponentsUtils componentsUtils;
-
-       public final static Pattern PROPERTY_NAME_PATTERN_IGNORE_LENGTH = Pattern
-                       .compile("[\\w\\-\\_\\d\\:]+");
-       @Autowired
-       protected CapabilityTypeOperation capabilityTypeOperation;
-       @Autowired
-       protected ToscaOperationFacade toscaOperationFacade; 
-
-       private ResponseFormatManager responseFormatManager;
-
-       private static Logger log = LoggerFactory.getLogger(ResourceImportManager.class.getName());
-
-       public void setToscaOperationFacade(ToscaOperationFacade toscaOperationFacade) {
-               this.toscaOperationFacade = toscaOperationFacade;
-       }
-
-       public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importNormativeResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean createNewVersion, boolean needLock) {
-
-               LifecycleChangeInfoWithAction lifecycleChangeInfo = new LifecycleChangeInfoWithAction();
-               lifecycleChangeInfo.setUserRemarks("certification on import");
-               Function<Resource, Either<Boolean, ResponseFormat>> validator = (resource) -> resourceBusinessLogic.validatePropertiesDefaultValues(resource);
-
-               return importCertifiedResource(resourceYml, resourceMetaData, creator, validator, lifecycleChangeInfo, false, createNewVersion, needLock, null, null, false, null, null, false);
-       }
-       
-       public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importNormativeResourceFromCsar(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean createNewVersion, boolean needLock) {
-
-               LifecycleChangeInfoWithAction lifecycleChangeInfo = new LifecycleChangeInfoWithAction();
-               lifecycleChangeInfo.setUserRemarks("certification on import");
-               Function<Resource, Either<Boolean, ResponseFormat>> validator = (resource) -> resourceBusinessLogic.validatePropertiesDefaultValues(resource);
-
-               return importCertifiedResource(resourceYml, resourceMetaData, creator, validator, lifecycleChangeInfo, false, createNewVersion, needLock, null, null, false, null, null, false);
-       }
-
-       public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importCertifiedResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, Function<Resource, Either<Boolean, ResponseFormat>> validationFunction,
-                       LifecycleChangeInfoWithAction lifecycleChangeInfo, boolean isInTransaction, boolean createNewVersion, boolean needLock, Map<ArtifactOperationEnum, List<ArtifactDefinition>> nodeTypeArtifactsToHandle, List<ArtifactDefinition> nodeTypesNewCreatedArtifacts, boolean forceCertificationAllowed, CsarInfo csarInfo, String nodeName, boolean isNested) {
-               Resource resource = new Resource();
-               ImmutablePair<Resource, ActionStatus> responsePair = new ImmutablePair<>(resource, ActionStatus.CREATED);
-               Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> response = Either.left(responsePair);
-
-               String latestCertifiedResourceId = null;
-               try {
-                       boolean shouldBeCertified = nodeTypeArtifactsToHandle == null || nodeTypeArtifactsToHandle.isEmpty();
-                       setConstantMetaData(resource, shouldBeCertified);
-                       setMetaDataFromJson(resourceMetaData, resource);
-
-                       Either<Boolean, ResponseFormat> validateResourceFromYaml = populateResourceFromYaml(resourceYml, resource, isInTransaction);
-                       if (validateResourceFromYaml.isRight()) {
-                               ResponseFormat validationErrorResponse = validateResourceFromYaml.right().value();
-                               auditErrorImport(resourceMetaData, creator, validationErrorResponse, true);
-                               return Either.right(validationErrorResponse);
-
-                       }
-
-                       Either<Boolean, ResponseFormat> isValidResource = validationFunction.apply(resource);
-                       if (isValidResource.isLeft()) {
-                               // The flag createNewVersion if false doesn't create new version
-                               if (!createNewVersion) {
-                                       Either<Resource, StorageOperationStatus> latestByName = toscaOperationFacade.getLatestByName(resource.getName());
-                                       if (latestByName.isLeft()) {
-                                               return Either.right(componentsUtils.getResponseFormatByResource(ActionStatus.COMPONENT_NAME_ALREADY_EXIST, resource));
-                                       }
-                               }
-
-                               response = resourceBusinessLogic.createOrUpdateResourceByImport(resource, creator, true, isInTransaction, needLock, csarInfo, nodeName, isNested);
-                               Either<Resource, ResponseFormat> changeStateResponse;
-                               if (response.isLeft()) {
-                                       resource = response.left().value().left;
-                                       
-                                       if(nodeTypeArtifactsToHandle !=null && !nodeTypeArtifactsToHandle.isEmpty()){
-                                               Either<List<ArtifactDefinition>, ResponseFormat> handleNodeTypeArtifactsRes = 
-                                                               resourceBusinessLogic.handleNodeTypeArtifacts(resource, nodeTypeArtifactsToHandle, nodeTypesNewCreatedArtifacts, creator, isInTransaction, false);
-                                               if(handleNodeTypeArtifactsRes.isRight()){
-                                                       return Either.right(handleNodeTypeArtifactsRes.right().value());
-                                               }
-                                       }
-                                       latestCertifiedResourceId = getLatestCertifiedResourceId(resource);
-                                       changeStateResponse = resourceBusinessLogic.propagateStateToCertified(creator, resource, lifecycleChangeInfo, isInTransaction, needLock, forceCertificationAllowed);
-                                       if (changeStateResponse.isRight()) {
-                                               response = Either.right(changeStateResponse.right().value());
-                                       } else {
-                                               responsePair = new ImmutablePair<>(changeStateResponse.left().value(), response.left().value().right);
-                                               response = Either.left(responsePair);
-                                       }
-                               }
-                       } else {
-                               ResponseFormat validationErrorResponse = isValidResource.right().value();
-                               auditErrorImport(resourceMetaData, creator, validationErrorResponse, true);
-                               response = Either.right(validationErrorResponse);
-                       }
-
-               } catch (RuntimeException e) {
-                       ResponseFormat exceptionResponse = handleImportResourceExecption(resourceMetaData, creator, true, e);
-                       response = Either.right(exceptionResponse);
-               } finally {
-                       if (latestCertifiedResourceId != null && needLock) {
-                               log.debug("unlock resource {}", latestCertifiedResourceId);
-                               graphLockOperation.unlockComponent(latestCertifiedResourceId, NodeTypeEnum.Resource);
-                       }
-               }
-
-               return response;
-       }
-
-       private String getLatestCertifiedResourceId(Resource resource) {
-               Map<String, String> allVersions = resource.getAllVersions();
-               Double latestCertifiedVersion = 0.0;
-               if (allVersions != null) {
-                       for (String version : allVersions.keySet()) {
-                               Double dVersion = Double.valueOf(version);
-                               if ((dVersion > latestCertifiedVersion) && (version.endsWith(".0"))) {
-                                       latestCertifiedVersion = dVersion;
-                               }
-                       }
-                       return allVersions.get(String.valueOf(latestCertifiedVersion));
-               } else {
-                       return null;
-               }
-       }
-
-       public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importUserDefinedResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean isReusable, boolean isInTransaction) {
-
-               Resource resource = new Resource();
-               ImmutablePair<Resource, ActionStatus> responsePair = new ImmutablePair<Resource, ActionStatus>(resource, ActionStatus.CREATED);
-               Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> response = Either.left(responsePair);
-
-               try {
-                       setMetaDataFromJson(resourceMetaData, resource);
-
-                       Either<Boolean, ResponseFormat> validateResourceFromYaml = populateResourceFromYaml(resourceYml, resource, isInTransaction);
-                       if (validateResourceFromYaml.isRight()) {
-                               ResponseFormat validationErrorResponse = validateResourceFromYaml.right().value();
-                               auditErrorImport(resourceMetaData, creator, validationErrorResponse, false);
-                               return Either.right(validationErrorResponse);
-
-                       }
-
-                       // currently import VF isn't supported. In future will be supported
-                       // import VF only with CSER file!!
-                       if (ResourceTypeEnum.VF.equals(resource.getResourceType())) {
-                               log.debug("Now import VF isn't supported. It will be supported in future with CSER file only");
-                               return Either.right(componentsUtils.getResponseFormat(ActionStatus.RESTRICTED_OPERATION));
-                       }
-
-                       Either<Boolean, ResponseFormat> validateDerivedFromNotEmpty = resourceBusinessLogic.validateDerivedFromNotEmpty(creator, resource, AuditingActionEnum.CREATE_RESOURCE);
-                       if (validateDerivedFromNotEmpty.isRight()) {
-                               return Either.right(validateDerivedFromNotEmpty.right().value());
-                       }
-
-                       Either<Boolean, ResponseFormat> validatePropertiesTypes = resourceBusinessLogic.validatePropertiesDefaultValues(resource);
-
-                       if (validatePropertiesTypes.isLeft()) {
-                               response = resourceBusinessLogic.createOrUpdateResourceByImport(resource, creator, false, isInTransaction, true, null, null, false);
-                       } else {
-                               ResponseFormat validationErrorResponse = validatePropertiesTypes.right().value();
-                               auditErrorImport(resourceMetaData, creator, validationErrorResponse, false);
-                               response = Either.right(validationErrorResponse);
-                       }
-
-               } catch (RuntimeException e) {
-                       ResponseFormat exceptionResponse = handleImportResourceExecption(resourceMetaData, creator, false, e);
-                       response = Either.right(exceptionResponse);
-               }
-
-               return response;
-
-       }
-
-       Either<Boolean, ResponseFormat> populateResourceFromYaml(String resourceYml, Resource resource, boolean inTransaction) {
-               @SuppressWarnings("unchecked")
-               Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
-               Map<String, Object> toscaJsonAll = (Map<String, Object>) new Yaml().load(resourceYml);
-               Map<String, Object> toscaJson = toscaJsonAll;
-
-               // Checks if exist and builds the node_types map
-               if (toscaJsonAll.containsKey(ToscaTagNamesEnum.NODE_TYPES.getElementName()) && resource.getResourceType()!=ResourceTypeEnum.CVFC) {
-                       toscaJson = new HashMap<String, Object>();
-                       toscaJson.put(ToscaTagNamesEnum.NODE_TYPES.getElementName(), toscaJsonAll.get(ToscaTagNamesEnum.NODE_TYPES.getElementName()));
-               }
-               // Derived From
-               Either<Resource, ResponseFormat> setDerivedFrom = setDerivedFrom(toscaJson, resource, inTransaction);
-               if (setDerivedFrom.isRight()) {
-                       return Either.right(setDerivedFrom.right().value());
-               }
-               Resource parentResource = setDerivedFrom.left().value();
-               if(StringUtils.isEmpty(resource.getToscaResourceName()))
-                       setToscaResourceName(toscaJson, resource);
-               setAttributes(toscaJson, resource);
-               eitherResult = setCapabilities(toscaJson, resource, parentResource);
-               if (eitherResult.isRight())
-                       return eitherResult;
-               eitherResult = setProperties(toscaJson, resource);
-               if (eitherResult.isRight())
-                       return eitherResult;
-               eitherResult = setRequirements(toscaJson, resource, parentResource);
-               if (eitherResult.isRight())
-                       return eitherResult;
-               setInterfaceLifecycle(toscaJson, resource);
-
-               return eitherResult;
-       }
-
-       private void setToscaResourceName(Map<String, Object> toscaJson, Resource resource) {
-               Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.NODE_TYPES);
-               if (toscaElement.isLeft() || toscaElement.left().value().size() == 1) {
-                       String toscaResourceName = toscaElement.left().value().keySet().iterator().next();
-                       resource.setToscaResourceName(toscaResourceName);
-               }
-       }
-
-       private void setInterfaceLifecycle(Map<String, Object> toscaJson, Resource resource) {
-               Either<Map<String, Object>, ResultStatusEnum> toscaInterfaces = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.INTERFACES);
-               if (toscaInterfaces.isLeft()) {
-                       Map<String, Object> jsonInterfaces = toscaInterfaces.left().value();
-                       Map<String, InterfaceDefinition> moduleInterfaces = new HashMap<String, InterfaceDefinition>();
-                       Iterator<Entry<String, Object>> interfacesNameValue = jsonInterfaces.entrySet().iterator();
-                       while (interfacesNameValue.hasNext()) {
-                               Entry<String, Object> interfaceNameValue = interfacesNameValue.next();
-                               Either<InterfaceDefinition, ResultStatusEnum> eitherInterface = createModuleInterface(interfaceNameValue.getValue());
-                               if (eitherInterface.isRight()) {
-                                       log.info("error when creating interface:{}, for resource:{}", interfaceNameValue.getKey(), resource.getName());
-                               } else {
-                                       moduleInterfaces.put(interfaceNameValue.getKey(), eitherInterface.left().value());
-                               }
-
-                       }
-                       if (moduleInterfaces.size() > 0) {
-                               resource.setInterfaces(moduleInterfaces);
-                       }
-               }
-       }
-
-       private Either<InterfaceDefinition, ResultStatusEnum> createModuleInterface(Object interfaceJson) {
-               InterfaceDefinition interf = new InterfaceDefinition();
-               Either<InterfaceDefinition, ResultStatusEnum> result = Either.left(interf);
-
-               try {
-                       if (interfaceJson instanceof String) {
-                               String requirementJsonString = (String) interfaceJson;
-                               interf.setType(requirementJsonString);
-                       } else if (interfaceJson instanceof Map) {
-                               Map<String, Object> requirementJsonMap = (Map<String, Object>) interfaceJson;
-                               if (requirementJsonMap.containsKey(ToscaTagNamesEnum.TYPE.getElementName())) {
-                                       String type = (String) requirementJsonMap.get(ToscaTagNamesEnum.TYPE.getElementName());
-                                       interf.setType(type);
-                                       interf.setUniqueId(type.toLowerCase());
-                               }
-                       } else {
-                               result = Either.right(ResultStatusEnum.GENERAL_ERROR);
-                       }
-
-               } catch (Exception e) {
-                       BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeSystemError, "Import Resource- create interface");
-                       BeEcompErrorManager.getInstance().logBeSystemError("Import Resource- create interface");
-                       log.debug("error when creating interface, message:{}", e.getMessage(), e);
-                       result = Either.right(ResultStatusEnum.GENERAL_ERROR);
-               }
-
-               return result;
-       }
-
-       private Either<Boolean, ResponseFormat> setRequirements(Map<String, Object> toscaJson, Resource resource, Resource parentResource) {// Note that parentResource can be null
-               Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
-               Either<List<Object>, ResultStatusEnum> toscaRequirements = ImportUtils.findFirstToscaListElement(toscaJson, ToscaTagNamesEnum.REQUIREMENTS);
-               if (toscaRequirements.isLeft()) {
-                       List<Object> jsonRequirements = toscaRequirements.left().value();
-                       Map<String, List<RequirementDefinition>> moduleRequirements = new HashMap<String, List<RequirementDefinition>>();
-                       // Checking for name duplication
-                       Set<String> reqNames = new HashSet<>();
-                       // Getting flattened list of capabilities of parent node - cap name
-                       // to cap type
-                       Either<Map<String, String>, ResponseFormat> reqName2Type = getReqName2Type(parentResource);
-                       if (reqName2Type.isRight()) {
-                               ResponseFormat responseFormat = reqName2Type.right().value();
-                               log.debug("Error during setting requirements of imported resource: {}", responseFormat);
-                               return Either.right(responseFormat);
-                       }
-                       Map<String, String> reqName2TypeMap = reqName2Type.left().value();
-                       for (Object jsonRequirementObj : jsonRequirements) {
-                               // Requirement
-                               Map<String, Object> requirementJsonWrapper = (Map<String, Object>) jsonRequirementObj;
-                               String requirementName = requirementJsonWrapper.keySet().iterator().next();
-                               String reqNameLowerCase = requirementName.toLowerCase();
-                               if (reqNames.contains(reqNameLowerCase)) {
-                                       log.debug("More than one requirement with same name {} (case-insensitive) in imported TOSCA file is invalid", reqNameLowerCase);
-                                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.IMPORT_DUPLICATE_REQ_CAP_NAME, "requirement", reqNameLowerCase));
-                               }
-                               reqNames.add(reqNameLowerCase);
-                               Either<RequirementDefinition, ResponseFormat> eitherRequirement = createRequirementFromImportFile(requirementJsonWrapper.get(requirementName));
-                               if (eitherRequirement.isRight()) {
-                                       log.info("error when creating Requirement:{}, for resource:{}", requirementName, resource.getName());
-                                       return Either.right(eitherRequirement.right().value());
-                               }
-                               RequirementDefinition requirementDef = eitherRequirement.left().value();
-                               requirementDef.setName(requirementName);
-                               if (moduleRequirements.containsKey(requirementDef.getCapability())) {
-                                       moduleRequirements.get(requirementDef.getCapability()).add(requirementDef);
-                               } else {
-                                       List<RequirementDefinition> list = new ArrayList<RequirementDefinition>();
-                                       list.add(requirementDef);
-                                       moduleRequirements.put(requirementDef.getCapability(), list);
-                               }
-
-                               // Validating against req/cap of "derived from" node
-                               Either<Boolean, ResponseFormat> validateVsParentCap = validateCapNameVsDerived(reqName2TypeMap, requirementDef.getCapability(), requirementDef.getName());
-                               if (validateVsParentCap.isRight()) {
-                                       return Either.right(validateVsParentCap.right().value());
-                               }
-                               if (!validateVsParentCap.left().value()) {
-                                       log.debug("Requirement with name {} already exists in parent {}", requirementDef.getName(), parentResource.getName());
-                                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.IMPORT_REQ_CAP_NAME_EXISTS_IN_DERIVED, "requirement", requirementDef.getName().toLowerCase(), parentResource.getName());
-                                       return Either.right(responseFormat);
-                               }
-                       }
-                       if (moduleRequirements.size() > 0) {
-                               resource.setRequirements(moduleRequirements);
-                       }
-
-               }
-               return eitherResult;
-
-       }
-
-       private Either<RequirementDefinition, ResponseFormat> createRequirementFromImportFile(Object requirementJson) {
-               RequirementDefinition requirement = new RequirementDefinition();
-               Either<RequirementDefinition, ResponseFormat> result = Either.left(requirement);
-
-               try {
-                       if (requirementJson instanceof String) {
-                               String requirementJsonString = (String) requirementJson;
-                               requirement.setCapability(requirementJsonString);
-                       } else if (requirementJson instanceof Map) {
-                               Map<String, Object> requirementJsonMap = (Map<String, Object>) requirementJson;
-                               if (requirementJsonMap.containsKey(ToscaTagNamesEnum.CAPABILITY.getElementName())) {
-                                       requirement.setCapability((String) requirementJsonMap.get(ToscaTagNamesEnum.CAPABILITY.getElementName()));
-                               }
-
-                               if (requirementJsonMap.containsKey(ToscaTagNamesEnum.NODE.getElementName())) {
-                                       requirement.setNode((String) requirementJsonMap.get(ToscaTagNamesEnum.NODE.getElementName()));
-                               }
-
-                               if (requirementJsonMap.containsKey(ToscaTagNamesEnum.RELATIONSHIP.getElementName())) {
-                                       requirement.setRelationship((String) requirementJsonMap.get(ToscaTagNamesEnum.RELATIONSHIP.getElementName()));
-                               }
-                               if (requirementJsonMap.containsKey(ToscaTagNamesEnum.OCCURRENCES.getElementName())) {
-                                       List<Object> occurrencesList = (List) requirementJsonMap.get(ToscaTagNamesEnum.OCCURRENCES.getElementName());
-                                       Either<Boolean, ResponseFormat> validateAndSetOccurrencesStatus = validateOccurrences(occurrencesList);
-                                       if (validateAndSetOccurrencesStatus.isRight()) {
-                                               result = Either.right(validateAndSetOccurrencesStatus.right().value());
-                                               return result;
-                                       }
-                                       if (validateAndSetOccurrencesStatus.left().value() == true) {
-                                               requirement.setMinOccurrences(occurrencesList.get(0).toString());
-                                               requirement.setMaxOccurrences(occurrencesList.get(1).toString());
-                                       }
-
-                               }
-                       } else {
-                               result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
-                       }
-
-               } catch (Exception e) {
-                       BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeSystemError, "Import Resource - create Requirement");
-                       BeEcompErrorManager.getInstance().logBeSystemError("Import Resource - create Requirement");
-                       log.debug("error when creating requirement, message:{}", e.getMessage(), e);
-                       result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
-               }
-
-               return result;
-       }
-
-       private Either<Boolean, ResponseFormat> setProperties(Map<String, Object> toscaJson, Resource resource) {
-               Map<String, Object> reducedToscaJson = new HashMap<>(toscaJson);
-               ImportUtils.removeElementFromJsonMap(reducedToscaJson, "capabilities");
-               Either<Boolean, ResponseFormat> result = Either.left(true);
-               Either<Map<String, PropertyDefinition>, ResultStatusEnum> properties = ImportUtils.getProperties(reducedToscaJson);
-               if (properties.isLeft()) {
-                       List<PropertyDefinition> propertiesList = new ArrayList<>();
-                       Map<String, PropertyDefinition> value = properties.left().value();
-                       if (value != null) {
-                               for (Entry<String, PropertyDefinition> entry : value.entrySet()) {
-                                       String name = entry.getKey();
-                                       if(!PROPERTY_NAME_PATTERN_IGNORE_LENGTH.matcher(name).matches()){
-                                               log.debug("The property with invalid name {} occured upon import resource {}. ", name, resource.getName());
-                                               result = Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromResultStatusEnum(ResultStatusEnum.INVALID_PROPERTY_NAME, JsonPresentationFields.PROPERTY)));
-                                       }
-                                       PropertyDefinition propertyDefinition = entry.getValue();
-                                       propertyDefinition.setName(name);
-                                       propertiesList.add(propertyDefinition);
-                               }
-                       }
-                       resource.setProperties(propertiesList);
-               } else if(properties.right().value() != ResultStatusEnum.ELEMENT_NOT_FOUND){
-                       result = Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromResultStatusEnum(properties.right().value(), JsonPresentationFields.PROPERTY)));
-               }
-               return result;
-       }
-
-       private ResultStatusEnum setAttributes(Map<String, Object> toscaJson, Resource resource) {
-               ResultStatusEnum result = ResultStatusEnum.OK;
-               Either<Map<String, PropertyDefinition>, ResultStatusEnum> attributes = ImportUtils.getAttributes(toscaJson);
-               if (attributes.isLeft()) {
-                       List<PropertyDefinition> attributeList = new ArrayList<>();
-                       Map<String, PropertyDefinition> value = attributes.left().value();
-                       if (value != null) {
-                               for (Entry<String, PropertyDefinition> entry : value.entrySet()) {
-                                       String name = entry.getKey();
-                                       PropertyDefinition attributeDef = entry.getValue();
-                                       attributeDef.setName(name);
-                                       attributeList.add(attributeDef);
-                               }
-                       }
-                       resource.setAttributes(attributeList);
-               } else {
-                       result = attributes.right().value();
-               }
-               return result;
-       }
-
-       private Either<Resource, ResponseFormat> setDerivedFrom(Map<String, Object> toscaJson, Resource resource, boolean inTransaction) {
-               Either<String, ResultStatusEnum> toscaDerivedFromElement = ImportUtils.findFirstToscaStringElement(toscaJson, ToscaTagNamesEnum.DERIVED_FROM);
-               Resource derivedFromResource = null;
-               if (toscaDerivedFromElement.isLeft()) {
-                       String derivedFrom = toscaDerivedFromElement.left().value();
-                       log.debug("Derived from TOSCA name is {}", derivedFrom);
-                       resource.setDerivedFrom(Arrays.asList(new String[] { derivedFrom }));
-                       Either<Resource, StorageOperationStatus> latestByToscaResourceName = toscaOperationFacade.getLatestByToscaResourceName(derivedFrom);
-                       
-                       if (latestByToscaResourceName.isRight()) {
-                               StorageOperationStatus operationStatus = latestByToscaResourceName.right().value();
-                               if (operationStatus.equals(StorageOperationStatus.NOT_FOUND)) {
-                                       operationStatus = StorageOperationStatus.PARENT_RESOURCE_NOT_FOUND;
-                               }
-                               log.debug("Error when fetching parent resource {}, error: {}", derivedFrom, operationStatus);
-                               ActionStatus convertFromStorageResponse = componentsUtils.convertFromStorageResponse(operationStatus);
-                               BeEcompErrorManager.getInstance().logBeComponentMissingError("Import TOSCA YAML", "resource", derivedFrom);
-                               return Either.right(componentsUtils.getResponseFormat(convertFromStorageResponse, derivedFrom));
-                       }
-                       derivedFromResource = latestByToscaResourceName.left().value();
-               }
-               return Either.left(derivedFromResource);
-       }
-
-       private Either<Boolean, ResponseFormat> setCapabilities(Map<String, Object> toscaJson, Resource resource, Resource parentResource) {// Note that parentResource can be null
-               Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
-               Either<Map<String, Object>, ResultStatusEnum> toscaCapabilities = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.CAPABILITIES);
-               if (toscaCapabilities.isLeft()) {
-                       Map<String, Object> jsonCapabilities = toscaCapabilities.left().value();
-                       Map<String, List<CapabilityDefinition>> moduleCapabilities = new HashMap<String, List<CapabilityDefinition>>();
-                       Iterator<Entry<String, Object>> capabilitiesNameValue = jsonCapabilities.entrySet().iterator();
-                       Set<String> capNames = new HashSet<>();
-                       // Getting flattened list of capabilities of parent node - cap name
-                       // to cap type
-                       Either<Map<String, String>, ResponseFormat> capName2Type = getCapName2Type(parentResource);
-                       if (capName2Type.isRight()) {
-                               ResponseFormat responseFormat = capName2Type.right().value();
-                               log.debug("Error during setting capabilities of imported resource: {}", responseFormat);
-                               return Either.right(responseFormat);
-                       }
-                       Map<String, String> capName2TypeMap = capName2Type.left().value();
-                       while (capabilitiesNameValue.hasNext()) {
-                               Entry<String, Object> capabilityNameValue = capabilitiesNameValue.next();
-
-                               // Validating that no req/cap duplicates exist in imported YAML
-                               String capNameLowerCase = capabilityNameValue.getKey().toLowerCase();
-                               if (capNames.contains(capNameLowerCase)) {
-                                       log.debug("More than one capability with same name {} (case-insensitive) in imported TOSCA file is invalid", capNameLowerCase);
-                                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.IMPORT_DUPLICATE_REQ_CAP_NAME, "capability", capNameLowerCase));
-                               }
-                               capNames.add(capNameLowerCase);
-
-                               Either<CapabilityDefinition, ResponseFormat> eitherCapability = createCapabilityFromImportFile(capabilityNameValue.getValue());
-                               if (eitherCapability.isRight()) {
-                                       log.debug("error when creating capability:{}, for resource:{}", capabilityNameValue.getKey(), resource.getName());
-                                       return Either.right(eitherCapability.right().value());
-                               }
-
-                               CapabilityDefinition capabilityDef = eitherCapability.left().value();
-                               capabilityDef.setName(capabilityNameValue.getKey());
-                               if (moduleCapabilities.containsKey(capabilityDef.getType())) {
-                                       moduleCapabilities.get(capabilityDef.getType()).add(capabilityDef);
-                               } else {
-                                       List<CapabilityDefinition> list = new ArrayList<CapabilityDefinition>();
-                                       list.add(capabilityDef);
-                                       moduleCapabilities.put(capabilityDef.getType(), list);
-                               }
-
-                               // Validating against req/cap of "derived from" node
-                               Either<Boolean, ResponseFormat> validateVsParentCap = validateCapNameVsDerived(capName2TypeMap, capabilityDef.getType(), capabilityDef.getName());
-                               if (validateVsParentCap.isRight()) {
-                                       return Either.right(validateVsParentCap.right().value());
-                               }
-                               if (!validateVsParentCap.left().value()) {
-                                       // Here parentResource is for sure not null, so it's
-                                       // null-safe
-                                       log.debug("Capability with name {} already exists in parent {}", capabilityDef.getName(), parentResource.getName());
-                                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.IMPORT_REQ_CAP_NAME_EXISTS_IN_DERIVED, "capability", capabilityDef.getName().toLowerCase(), parentResource.getName());
-                                       return Either.right(responseFormat);
-                               }
-                       }
-                       if (moduleCapabilities.size() > 0) {
-                               resource.setCapabilities(moduleCapabilities);
-                       }
-               }
-
-               return eitherResult;
-
-       }
-
-       private Either<Map<String, String>, ResponseFormat> getCapName2Type(Resource parentResource) {
-               Map<String, String> capName2type = new HashMap<>();
-               if (parentResource != null) {
-                       Map<String, List<CapabilityDefinition>> capabilities = parentResource.getCapabilities();
-                       if (capabilities != null) {
-                               for (List<CapabilityDefinition> capDefinitions : capabilities.values()) {
-                                       for (CapabilityDefinition capDefinition : capDefinitions) {
-                                               String nameLowerCase = capDefinition.getName().toLowerCase();
-                                               if (capName2type.get(nameLowerCase) != null) {
-                                                       String parentResourceName = parentResource.getName();
-                                                       log.debug("Resource with name {} has more than one capability with name {}, ignoring case", parentResourceName, nameLowerCase);
-                                                       BeEcompErrorManager.getInstance().logInternalDataError("Import resource", "Parent resource " + parentResourceName + " of imported resource has one or more capabilities with name " + nameLowerCase, ErrorSeverity.ERROR);
-                                                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.GENERAL_ERROR));
-                                               }
-                                               capName2type.put(nameLowerCase, capDefinition.getType());
-                                       }
-                               }
-                       }
-               }
-               return Either.left(capName2type);
-       }
-
-       private Either<Map<String, String>, ResponseFormat> getReqName2Type(Resource parentResource) {
-               Map<String, String> reqName2type = new HashMap<>();
-               if (parentResource != null) {
-                       Map<String, List<RequirementDefinition>> requirements = parentResource.getRequirements();
-                       if (requirements != null) {
-                               for (List<RequirementDefinition> reqDefinitions : requirements.values()) {
-                                       for (RequirementDefinition reqDefinition : reqDefinitions) {
-                                               String nameLowerCase = reqDefinition.getName().toLowerCase();
-                                               if (reqName2type.get(nameLowerCase) != null) {
-                                                       String parentResourceName = parentResource.getName();
-                                                       log.debug("Resource with name {} has more than one requirement with name {}, ignoring case", parentResourceName, nameLowerCase);
-                                                       BeEcompErrorManager.getInstance().logInternalDataError("Import resource", "Parent resource " + parentResourceName + " of imported resource has one or more requirements with name " + nameLowerCase, ErrorSeverity.ERROR);
-                                                       return Either.right(componentsUtils.getResponseFormat(ActionStatus.GENERAL_ERROR));
-                                               }
-                                               reqName2type.put(nameLowerCase, reqDefinition.getCapability());
-                                       }
-                               }
-                       }
-               }
-               return Either.left(reqName2type);
-       }
-
-       private Either<Boolean, ResponseFormat> validateCapNameVsDerived(Map<String, String> parentCapName2Type, String childCapabilityType, String reqCapName) {
-               String capNameLowerCase = reqCapName.toLowerCase();
-               log.trace("Validating capability {} vs parent resource", capNameLowerCase);
-               String parentCapType = parentCapName2Type.get(capNameLowerCase);
-               if (parentCapType != null) {
-                       if (childCapabilityType.equals(parentCapType)) {
-                               log.debug("Capability with name {} is of same type {} for imported resource and its parent - this is OK", capNameLowerCase, childCapabilityType);
-                               return Either.left(true);
-                       }
-                       Either<Boolean, StorageOperationStatus> capabilityTypeDerivedFrom = capabilityTypeOperation.isCapabilityTypeDerivedFrom(childCapabilityType, parentCapType);
-                       if (capabilityTypeDerivedFrom.isRight()) {
-                               log.debug("Couldn't check whether imported resource capability derives from its parent's capability");
-                               ResponseFormat responseFormat = componentsUtils.getResponseFormat(componentsUtils.convertFromStorageResponse(capabilityTypeDerivedFrom.right().value()));
-                               return Either.right(responseFormat);
-                       }
-                       return Either.left(capabilityTypeDerivedFrom.left().value());
-               }
-               return Either.left(true);
-       }
-
-       private Either<CapabilityDefinition, ResponseFormat> createCapabilityFromImportFile(Object capabilityJson) {
-
-               CapabilityDefinition capabilityDefinition = new CapabilityDefinition();
-               Either<CapabilityDefinition, ResponseFormat> result = Either.left(capabilityDefinition);
-
-               try {
-                       if (capabilityJson instanceof String) {
-                               String capabilityJsonString = (String) capabilityJson;
-                               capabilityDefinition.setType(capabilityJsonString);
-                       } else if (capabilityJson instanceof Map) {
-                               Map<String, Object> capabilityJsonMap = (Map<String, Object>) capabilityJson;
-                               // Type
-                               if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.TYPE.getElementName())) {
-                                       capabilityDefinition.setType((String) capabilityJsonMap.get(ToscaTagNamesEnum.TYPE.getElementName()));
-                               }
-                               // ValidSourceTypes
-                               if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.VALID_SOURCE_TYPES.getElementName())) {
-                                       capabilityDefinition.setValidSourceTypes((List<String>) capabilityJsonMap.get(ToscaTagNamesEnum.VALID_SOURCE_TYPES.getElementName()));
-                               }
-                               // ValidSourceTypes
-                               if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.DESCRIPTION.getElementName())) {
-                                       capabilityDefinition.setDescription((String) capabilityJsonMap.get(ToscaTagNamesEnum.DESCRIPTION.getElementName()));
-                               }
-                               if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.OCCURRENCES.getElementName())) {
-                                       List<Object> occurrencesList = (List) capabilityJsonMap.get(ToscaTagNamesEnum.OCCURRENCES.getElementName());
-                                       Either<Boolean, ResponseFormat> validateAndSetOccurrencesStatus = validateOccurrences(occurrencesList);
-                                       if (validateAndSetOccurrencesStatus.isRight()) {
-                                               result = Either.right(validateAndSetOccurrencesStatus.right().value());
-                                               return result;
-                                       }
-                                       if (validateAndSetOccurrencesStatus.left().value() == true) {
-                                               capabilityDefinition.setMinOccurrences(occurrencesList.get(0).toString());
-                                               capabilityDefinition.setMaxOccurrences(occurrencesList.get(1).toString());
-                                       }
-                               }
-                               if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.PROPERTIES.getElementName())) {
-
-                                       Either<Map<String, PropertyDefinition>, ResultStatusEnum> propertiesRes = ImportUtils.getProperties(capabilityJsonMap);
-                                       if (propertiesRes.isRight()) {
-                                               result = Either.right(componentsUtils.getResponseFormat(ActionStatus.PROPERTY_NOT_FOUND));
-                                               return result;
-                                       } else {
-                                               propertiesRes.left().value().entrySet().stream().forEach(e -> e.getValue().setName(e.getKey().toLowerCase()));
-                                               List<ComponentInstanceProperty> capabilityProperties = propertiesRes.left().value().values().stream().map(p -> new ComponentInstanceProperty(p, p.getDefaultValue(), null)).collect(Collectors.toList());
-                                               capabilityDefinition.setProperties(capabilityProperties);
-                                       }
-                               }
-                       } else if (!(capabilityJson instanceof List)) {
-
-                               result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
-
-                       }
-               } catch (Exception e) {
-                       BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeSystemError, "Import Resource - create capability");
-                       BeEcompErrorManager.getInstance().logBeSystemError("Import Resource - create capability");
-                       log.debug("error when creating capability, message:{}", e.getMessage(), e);
-                       result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
-               }
-
-               return result;
-       }
-
-       private ResponseFormat handleImportResourceExecption(UploadResourceInfo resourceMetaData, User user, boolean isNormative, RuntimeException e) {
-               String payloadName = (resourceMetaData != null) ? resourceMetaData.getPayloadName() : "";
-               BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeSystemError, "Import Resource " + payloadName);
-               BeEcompErrorManager.getInstance().logBeSystemError("Import Resource " + payloadName);
-
-               log.debug("Error when importing resource from payload:{} Exception text: {}", payloadName, e.getMessage(), e);
-               ResponseFormat errorResponseWrapper = getResponseFormatManager().getResponseFormat(ActionStatus.GENERAL_ERROR);
-               auditErrorImport(resourceMetaData, user, errorResponseWrapper, isNormative);
-               return errorResponseWrapper;
-       }
-
-       private void auditErrorImport(UploadResourceInfo resourceMetaData, User user, ResponseFormat errorResponseWrapper, boolean isNormative) {
-               EnumMap<AuditingFieldsKeysEnum, Object> auditingFields = new EnumMap<>(AuditingFieldsKeysEnum.class);
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_ACTION, AuditingActionEnum.IMPORT_RESOURCE.getName());
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceMetaData.getName());
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_TYPE, ComponentTypeEnum.RESOURCE.getValue());
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_PREV_VERSION, "");
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_MODIFIER_UID, user.getUserId());
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_PREV_STATE, "");
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_INVARIANT_UUID, "");
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_STATUS, errorResponseWrapper.getStatus());
-               String message = "";
-               if (errorResponseWrapper.getMessageId() != null) {
-                       message = errorResponseWrapper.getMessageId() + ": ";
-               }
-               message += errorResponseWrapper.getFormattedMessage();
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_DESC, message);
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_MODIFIER_NAME, user.getFirstName() + " " + user.getLastName());
-
-               String version, lifeCycleState;
-               if (isNormative) {
-                       version = Constants.FIRST_CERTIFIED_VERSION_VERSION;
-                       lifeCycleState = LifecycleStateEnum.CERTIFIED.name();
-               } else {
-                       version = "";
-                       lifeCycleState = LifecycleStateEnum.NOT_CERTIFIED_CHECKOUT.name();
-
-               }
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_CURR_VERSION, version);
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_CURR_STATE, lifeCycleState);
-               auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_TOSCA_NODE_TYPE, "");
-
-               getAuditingManager().auditEvent(auditingFields);
-       }
-
-       private void setMetaDataFromJson(UploadResourceInfo resourceMetaData, Resource resource) {
-               resource.setTags(resourceMetaData.getTags());
-               List<CategoryDefinition> categories = resourceMetaData.getCategories();
-               resource.setCategories(categories);
-               resource.setDescription(resourceMetaData.getDescription());
-               resource.setIcon(resourceMetaData.getResourceIconPath());
-               resource.setName(resourceMetaData.getName());
-               if (categories != null && !categories.isEmpty()) {
-                       CategoryDefinition categoryDef = categories.get(0);
-                       resource.setAbstract(false);
-                       if (categoryDef != null && categoryDef.getName() != null && categoryDef.getName().equals(Constants.ABSTRACT_CATEGORY_NAME)) {
-                               SubCategoryDefinition subCategoryDef = categoryDef.getSubcategories().get(0);
-                               if (subCategoryDef != null && subCategoryDef.getName().equals(Constants.ABSTRACT_SUBCATEGORY)) {
-                                       resource.setAbstract(true);
-                               }
-                       }
-               }
-               resource.setContactId(resourceMetaData.getContactId());
-               resource.setCreatorUserId(resourceMetaData.getContactId());
-
-               if (resourceMetaData.getVendorName() != null) {
-                       resource.setVendorName(resourceMetaData.getVendorName());
-               }
-
-               if (resourceMetaData.getVendorRelease() != null) {
-                       resource.setVendorRelease(resourceMetaData.getVendorRelease());
-               }
-
-               resource.setResourceType(ResourceTypeEnum.valueOf(resourceMetaData.getResourceType()));
-
-       }
-
-       private void setConstantMetaData(Resource resource, boolean shouldBeCertified) {
-               String version;
-               LifecycleStateEnum state;
-               if(shouldBeCertified){
-                       version = ImportUtils.Constants.FIRST_CERTIFIED_VERSION_VERSION;
-                       state = ImportUtils.Constants.NORMATIVE_TYPE_LIFE_CYCLE;
-               }else{
-                       version = ImportUtils.Constants.FIRST_NON_CERTIFIED_VERSION;
-                       state = ImportUtils.Constants.NORMATIVE_TYPE_LIFE_CYCLE_NOT_CERTIFIED_CHECKOUT;
-               }
-               resource.setVersion(version);
-               resource.setLifecycleState(state);
-               resource.setHighestVersion(ImportUtils.Constants.NORMATIVE_TYPE_HIGHEST_VERSION);
-               resource.setVendorName(ImportUtils.Constants.VENDOR_NAME);
-               resource.setVendorRelease(ImportUtils.Constants.VENDOR_RELEASE);
-
-       }
-
-       private Either<Boolean, ResponseFormat> validateOccurrences(List<Object> occurrensesList) {
-
-               if (!ValidationUtils.validateListNotEmpty(occurrensesList)) {
-                       log.debug("Occurrenses list empty");
-                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                       return Either.right(responseFormat);
-               }
-
-               if (occurrensesList.size() < 2) {
-                       log.debug("Occurrenses list size not 2");
-                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                       return Either.right(responseFormat);
-               }
-               Object minObj = occurrensesList.get(0);
-               Object maxObj = occurrensesList.get(1);
-               Integer minOccurrences = null;
-               Integer maxOccurrences = null;
-               if (minObj instanceof Integer)
-                       minOccurrences = (Integer) minObj;
-               else {
-                       log.debug("Invalid occurrenses format. low_bound occurrense must be Integer {}", minObj);
-                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                       return Either.right(responseFormat);
-               }
-               if (minOccurrences < 0) {
-                       log.debug("Invalid occurrenses format.low_bound occurrense negative {}", minOccurrences);
-                       ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                       return Either.right(responseFormat);
-               }
-
-               if (maxObj instanceof String) {
-                       if (maxObj.equals("UNBOUNDED")) {
-                               return Either.left(true);
-                       } else {
-                               log.debug("Invalid occurrenses format. Max occurrence is {}", maxObj);
-                               ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                               return Either.right(responseFormat);
-                       }
-               } else {
-                       if (maxObj instanceof Integer)
-                               maxOccurrences = (Integer) maxObj;
-                       else {
-                               log.debug("Invalid occurrenses format.  Max occurrence is {}", maxObj);
-                               ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                               return Either.right(responseFormat);
-                       }
-
-                       if (maxOccurrences <= 0 || maxOccurrences < minOccurrences) {
-                               log.debug("Invalid occurrenses format.  min occurrence is {}, Max occurrence is {}", minOccurrences, maxOccurrences);
-                               ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
-                               return Either.right(responseFormat);
-                       }
-               }
-
-               return Either.left(true);
-
-       }
-
-       public void init(ServletContext servletContext) {
-               if (this.servletContext == null) {
-                       synchronized (this) {
-                               if (this.servletContext == null) {
-                                       this.servletContext = servletContext;
-                                       responseFormatManager = ResponseFormatManager.getInstance();
-                                       resourceBusinessLogic = getResourceBL(servletContext);
-                               }
-                       }
-               }
-       }
-
-       public boolean isResourceExist(String resourceName) {
-               return resourceBusinessLogic.isResourceExist(resourceName);
-       }
-
-       private ResourceBusinessLogic getResourceBL(ServletContext context) {
-               WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(org.openecomp.sdc.common.api.Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
-               WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
-               ResourceBusinessLogic resourceBl = webApplicationContext.getBean(ResourceBusinessLogic.class);
-               return resourceBl;
-       }
-
-       public ServletContext getServletContext() {
-               return servletContext;
-       }
-
-       public IAuditingManager getAuditingManager() {
-               return auditingManager;
-       }
-
-       public ResponseFormatManager getResponseFormatManager() {
-               return responseFormatManager;
-       }
-
-       public void setResponseFormatManager(ResponseFormatManager responseFormatManager) {
-               this.responseFormatManager = responseFormatManager;
-       }
-
-       public ResourceBusinessLogic getResourceBusinessLogic() {
-               return resourceBusinessLogic;
-       }
-
-       public void setResourceBusinessLogic(ResourceBusinessLogic resourceBusinessLogic) {
-               this.resourceBusinessLogic = resourceBusinessLogic;
-       }
-
-       public Logger getLog() {
-               return log;
-       }
-
-       public static void setLog(Logger log) {
-               ResourceImportManager.log = log;
-       }
-
-       public IGraphLockOperation getGraphLockOperation() {
-               return graphLockOperation;
-       }
-
-       public void setGraphLockOperation(IGraphLockOperation graphLockOperation) {
-               this.graphLockOperation = graphLockOperation;
-       }
-
-       public void setServletContext(ServletContext servletContext) {
-               this.servletContext = servletContext;
-       }
-
-       public void setAuditingManager(IAuditingManager auditingManager) {
-               this.auditingManager = auditingManager;
-       }
+    private ServletContext servletContext;
+
+    @Autowired
+    private AuditingManager auditingManager;
+
+    @Autowired
+    private ResourceBusinessLogic resourceBusinessLogic;
+
+    @Autowired
+    private IGraphLockOperation graphLockOperation;
+
+    @Autowired
+    protected ComponentsUtils componentsUtils;
+
+    public final static Pattern PROPERTY_NAME_PATTERN_IGNORE_LENGTH = Pattern
+            .compile("[\\w\\-\\_\\d\\:]+");
+    @Autowired
+    protected CapabilityTypeOperation capabilityTypeOperation;
+    @Autowired
+    protected ToscaOperationFacade toscaOperationFacade;
+
+    private ResponseFormatManager responseFormatManager;
+
+    private static final Logger log = LoggerFactory.getLogger(ResourceImportManager.class);
+
+    public void setToscaOperationFacade(ToscaOperationFacade toscaOperationFacade) {
+        this.toscaOperationFacade = toscaOperationFacade;
+    }
+
+    public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importNormativeResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean createNewVersion, boolean needLock) {
+
+        LifecycleChangeInfoWithAction lifecycleChangeInfo = new LifecycleChangeInfoWithAction();
+        lifecycleChangeInfo.setUserRemarks("certification on import");
+        Function<Resource, Either<Boolean, ResponseFormat>> validator = resource -> resourceBusinessLogic.validatePropertiesDefaultValues(resource);
+
+        return importCertifiedResource(resourceYml, resourceMetaData, creator, validator, lifecycleChangeInfo, false, createNewVersion, needLock, null, null, false, null, null, false);
+    }
+
+    public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importNormativeResourceFromCsar(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean createNewVersion, boolean needLock) {
+
+        LifecycleChangeInfoWithAction lifecycleChangeInfo = new LifecycleChangeInfoWithAction();
+        lifecycleChangeInfo.setUserRemarks("certification on import");
+        Function<Resource, Either<Boolean, ResponseFormat>> validator = resource -> resourceBusinessLogic.validatePropertiesDefaultValues(resource);
+
+        return importCertifiedResource(resourceYml, resourceMetaData, creator, validator, lifecycleChangeInfo, false, createNewVersion, needLock, null, null, false, null, null, false);
+    }
+
+    public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importCertifiedResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, Function<Resource, Either<Boolean, ResponseFormat>> validationFunction,
+            LifecycleChangeInfoWithAction lifecycleChangeInfo, boolean isInTransaction, boolean createNewVersion, boolean needLock, Map<ArtifactOperationEnum, List<ArtifactDefinition>> nodeTypeArtifactsToHandle, List<ArtifactDefinition> nodeTypesNewCreatedArtifacts, boolean forceCertificationAllowed, CsarInfo csarInfo, String nodeName, boolean isNested) {
+        Resource resource = new Resource();
+        ImmutablePair<Resource, ActionStatus> responsePair = new ImmutablePair<>(resource, ActionStatus.CREATED);
+        Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> response = Either.left(responsePair);
+
+        String latestCertifiedResourceId = null;
+        try {
+            boolean shouldBeCertified = nodeTypeArtifactsToHandle == null || nodeTypeArtifactsToHandle.isEmpty();
+            setConstantMetaData(resource, shouldBeCertified);
+            setMetaDataFromJson(resourceMetaData, resource);
+
+            Either<Boolean, ResponseFormat> validateResourceFromYaml = populateResourceFromYaml(resourceYml, resource);
+            if (validateResourceFromYaml.isRight()) {
+                ResponseFormat validationErrorResponse = validateResourceFromYaml.right().value();
+                auditErrorImport(resourceMetaData, creator, validationErrorResponse, true);
+                return Either.right(validationErrorResponse);
+
+            }
+
+            Either<Boolean, ResponseFormat> isValidResource = validationFunction.apply(resource);
+            if (isValidResource.isLeft()) {
+                // The flag createNewVersion if false doesn't create new version
+                if (!createNewVersion) {
+                    Either<Resource, StorageOperationStatus> latestByName = toscaOperationFacade.getLatestByName(resource.getName());
+                    if (latestByName.isLeft()) {
+                        return Either.right(componentsUtils.getResponseFormatByResource(ActionStatus.COMPONENT_NAME_ALREADY_EXIST, resource));
+                    }
+                }
+
+                response = resourceBusinessLogic.createOrUpdateResourceByImport(resource, creator, true, isInTransaction, needLock, csarInfo, nodeName, isNested);
+                Either<Resource, ResponseFormat> changeStateResponse;
+                if (response.isLeft()) {
+                    resource = response.left().value().left;
+
+                    if(nodeTypeArtifactsToHandle !=null && !nodeTypeArtifactsToHandle.isEmpty()){
+                        Either<List<ArtifactDefinition>, ResponseFormat> handleNodeTypeArtifactsRes =
+                                resourceBusinessLogic.handleNodeTypeArtifacts(resource, nodeTypeArtifactsToHandle, nodeTypesNewCreatedArtifacts, creator, isInTransaction, false);
+                        if(handleNodeTypeArtifactsRes.isRight()){
+                            return Either.right(handleNodeTypeArtifactsRes.right().value());
+                        }
+                    }
+                    latestCertifiedResourceId = getLatestCertifiedResourceId(resource);
+                    changeStateResponse = resourceBusinessLogic.propagateStateToCertified(creator, resource, lifecycleChangeInfo, isInTransaction, needLock, forceCertificationAllowed);
+                    if (changeStateResponse.isRight()) {
+                        response = Either.right(changeStateResponse.right().value());
+                    } else {
+                        responsePair = new ImmutablePair<>(changeStateResponse.left().value(), response.left().value().right);
+                        response = Either.left(responsePair);
+                    }
+                }
+            } else {
+                ResponseFormat validationErrorResponse = isValidResource.right().value();
+                auditErrorImport(resourceMetaData, creator, validationErrorResponse, true);
+                response = Either.right(validationErrorResponse);
+            }
+
+        } catch (RuntimeException e) {
+            ResponseFormat exceptionResponse = handleImportResourceExecption(resourceMetaData, creator, true, e);
+            response = Either.right(exceptionResponse);
+        } finally {
+            if (latestCertifiedResourceId != null && needLock) {
+                log.debug("unlock resource {}", latestCertifiedResourceId);
+                graphLockOperation.unlockComponent(latestCertifiedResourceId, NodeTypeEnum.Resource);
+            }
+        }
+
+        return response;
+    }
+
+    private String getLatestCertifiedResourceId(Resource resource) {
+        Map<String, String> allVersions = resource.getAllVersions();
+        Double latestCertifiedVersion = 0.0;
+        if (allVersions != null) {
+            for (String version : allVersions.keySet()) {
+                Double dVersion = Double.valueOf(version);
+                if ((dVersion > latestCertifiedVersion) && (version.endsWith(".0"))) {
+                    latestCertifiedVersion = dVersion;
+                }
+            }
+            return allVersions.get(String.valueOf(latestCertifiedVersion));
+        } else {
+            return null;
+        }
+    }
+
+    public void populateResourceMetadata(UploadResourceInfo resourceMetaData, Resource resource) {
+        if (resource != null && resourceMetaData != null) {
+            resource.setDescription(resourceMetaData.getDescription());
+            resource.setTags(resourceMetaData.getTags());
+            resource.setCategories(resourceMetaData.getCategories());
+            resource.setContactId(resourceMetaData.getContactId());
+            resource.setName(resourceMetaData.getName());
+            resource.setIcon(resourceMetaData.getResourceIconPath());
+            resource.setResourceVendorModelNumber(resourceMetaData.getResourceVendorModelNumber());
+            resource.setResourceType(ResourceTypeEnum.valueOf(resourceMetaData.getResourceType()));
+            if (resourceMetaData.getVendorName() != null) {
+                resource.setVendorName(resourceMetaData.getVendorName());
+            }
+            if (resourceMetaData.getVendorRelease() != null) {
+                resource.setVendorRelease(resourceMetaData.getVendorRelease());
+            }
+        }
+    }
+
+    public Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> importUserDefinedResource(String resourceYml, UploadResourceInfo resourceMetaData, User creator, boolean isInTransaction) {
+
+        Resource resource = new Resource();
+        ImmutablePair<Resource, ActionStatus> responsePair = new ImmutablePair<Resource, ActionStatus>(resource, ActionStatus.CREATED);
+        Either<ImmutablePair<Resource, ActionStatus>, ResponseFormat> response = Either.left(responsePair);
+
+        try {
+            setMetaDataFromJson(resourceMetaData, resource);
+
+            Either<Boolean, ResponseFormat> validateResourceFromYaml = populateResourceFromYaml(resourceYml, resource);
+            if (validateResourceFromYaml.isRight()) {
+                ResponseFormat validationErrorResponse = validateResourceFromYaml.right().value();
+                auditErrorImport(resourceMetaData, creator, validationErrorResponse, false);
+                return Either.right(validationErrorResponse);
+
+            }
+
+            // currently import VF isn't supported. In future will be supported
+            // import VF only with CSER file!!
+            if (ResourceTypeEnum.VF.equals(resource.getResourceType())) {
+                log.debug("Now import VF isn't supported. It will be supported in future with CSER file only");
+                return Either.right(componentsUtils.getResponseFormat(ActionStatus.RESTRICTED_OPERATION));
+            }
+
+            Either<Boolean, ResponseFormat> validateDerivedFromNotEmpty = resourceBusinessLogic.validateDerivedFromNotEmpty(creator, resource, AuditingActionEnum.CREATE_RESOURCE);
+            if (validateDerivedFromNotEmpty.isRight()) {
+                return Either.right(validateDerivedFromNotEmpty.right().value());
+            }
+
+            Either<Boolean, ResponseFormat> validatePropertiesTypes = resourceBusinessLogic.validatePropertiesDefaultValues(resource);
+
+            if (validatePropertiesTypes.isLeft()) {
+                response = resourceBusinessLogic.createOrUpdateResourceByImport(resource, creator, false, isInTransaction, true, null, null, false);
+            } else {
+                ResponseFormat validationErrorResponse = validatePropertiesTypes.right().value();
+                auditErrorImport(resourceMetaData, creator, validationErrorResponse, false);
+                response = Either.right(validationErrorResponse);
+            }
+
+        } catch (RuntimeException e) {
+            ResponseFormat exceptionResponse = handleImportResourceExecption(resourceMetaData, creator, false, e);
+            response = Either.right(exceptionResponse);
+        }
+
+        return response;
+
+    }
+
+    Either<Boolean, ResponseFormat> populateResourceFromYaml(String resourceYml, Resource resource) {
+        @SuppressWarnings("unchecked")
+        Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
+        Map<String, Object> toscaJsonAll = (Map<String, Object>) new Yaml().load(resourceYml);
+        Map<String, Object> toscaJson = toscaJsonAll;
+
+        // Checks if exist and builds the node_types map
+        if (toscaJsonAll.containsKey(ToscaTagNamesEnum.NODE_TYPES.getElementName()) && resource.getResourceType()!=ResourceTypeEnum.CVFC) {
+            toscaJson = new HashMap<String, Object>();
+            toscaJson.put(ToscaTagNamesEnum.NODE_TYPES.getElementName(), toscaJsonAll.get(ToscaTagNamesEnum.NODE_TYPES.getElementName()));
+        }
+        // Derived From
+        Either<Resource, ResponseFormat> setDerivedFrom = setDerivedFrom(toscaJson, resource);
+        if (setDerivedFrom.isRight()) {
+            return Either.right(setDerivedFrom.right().value());
+        }
+        Resource parentResource = setDerivedFrom.left().value();
+        if(StringUtils.isEmpty(resource.getToscaResourceName())) {
+            setToscaResourceName(toscaJson, resource);
+        }
+        setAttributes(toscaJson, resource);
+        eitherResult = setCapabilities(toscaJson, resource, parentResource);
+        if (eitherResult.isRight()) {
+            return eitherResult;
+        }
+        eitherResult = setProperties(toscaJson, resource);
+        if (eitherResult.isRight()) {
+            return eitherResult;
+        }
+        eitherResult = setRequirements(toscaJson, resource, parentResource);
+        if (eitherResult.isRight()) {
+            return eitherResult;
+        }
+        setInterfaceLifecycle(toscaJson, resource);
+
+        return eitherResult;
+    }
+
+    private void setToscaResourceName(Map<String, Object> toscaJson, Resource resource) {
+        Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.NODE_TYPES);
+        if (toscaElement.isLeft() || toscaElement.left().value().size() == 1) {
+            String toscaResourceName = toscaElement.left().value().keySet().iterator().next();
+            resource.setToscaResourceName(toscaResourceName);
+        }
+    }
+
+    private void setInterfaceLifecycle(Map<String, Object> toscaJson, Resource resource) {
+        Either<Map<String, Object>, ResultStatusEnum> toscaInterfaces = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.INTERFACES);
+        if (toscaInterfaces.isLeft()) {
+            Map<String, Object> jsonInterfaces = toscaInterfaces.left().value();
+            Map<String, InterfaceDefinition> moduleInterfaces = new HashMap<String, InterfaceDefinition>();
+            Iterator<Entry<String, Object>> interfacesNameValue = jsonInterfaces.entrySet().iterator();
+            while (interfacesNameValue.hasNext()) {
+                Entry<String, Object> interfaceNameValue = interfacesNameValue.next();
+                Either<InterfaceDefinition, ResultStatusEnum> eitherInterface = createModuleInterface(interfaceNameValue.getValue());
+                if (eitherInterface.isRight()) {
+                    log.info("error when creating interface:{}, for resource:{}", interfaceNameValue.getKey(), resource.getName());
+                } else {
+                    moduleInterfaces.put(interfaceNameValue.getKey(), eitherInterface.left().value());
+                }
+
+            }
+            if (moduleInterfaces.size() > 0) {
+                resource.setInterfaces(moduleInterfaces);
+            }
+        }
+    }
+
+    private Either<InterfaceDefinition, ResultStatusEnum> createModuleInterface(Object interfaceJson) {
+        InterfaceDefinition interf = new InterfaceDefinition();
+        Either<InterfaceDefinition, ResultStatusEnum> result = Either.left(interf);
+
+        try {
+            if (interfaceJson instanceof String) {
+                String requirementJsonString = (String) interfaceJson;
+                interf.setType(requirementJsonString);
+            } else if (interfaceJson instanceof Map) {
+                Map<String, Object> requirementJsonMap = (Map<String, Object>) interfaceJson;
+                if (requirementJsonMap.containsKey(ToscaTagNamesEnum.TYPE.getElementName())) {
+                    String type = (String) requirementJsonMap.get(ToscaTagNamesEnum.TYPE.getElementName());
+                    interf.setType(type);
+                    interf.setUniqueId(type.toLowerCase());
+                }
+            } else {
+                result = Either.right(ResultStatusEnum.GENERAL_ERROR);
+            }
+
+        } catch (Exception e) {
+            BeEcompErrorManager.getInstance().logBeSystemError("Import Resource- create interface");
+            log.debug("error when creating interface, message:{}", e.getMessage(), e);
+            result = Either.right(ResultStatusEnum.GENERAL_ERROR);
+        }
+
+        return result;
+    }
+
+    private Either<Boolean, ResponseFormat> setRequirements(Map<String, Object> toscaJson, Resource resource, Resource parentResource) {// Note that parentResource can be null
+        Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
+        Either<List<Object>, ResultStatusEnum> toscaRequirements = ImportUtils.findFirstToscaListElement(toscaJson, ToscaTagNamesEnum.REQUIREMENTS);
+        if (toscaRequirements.isLeft()) {
+            List<Object> jsonRequirements = toscaRequirements.left().value();
+            Map<String, List<RequirementDefinition>> moduleRequirements = new HashMap<String, List<RequirementDefinition>>();
+            // Checking for name duplication
+            Set<String> reqNames = new HashSet<>();
+            // Getting flattened list of capabilities of parent node - cap name
+            // to cap type
+            Either<Map<String, String>, ResponseFormat> reqName2Type = getReqName2Type(parentResource);
+            if (reqName2Type.isRight()) {
+                ResponseFormat responseFormat = reqName2Type.right().value();
+                log.debug("Error during setting requirements of imported resource: {}", responseFormat);
+                return Either.right(responseFormat);
+            }
+            Map<String, String> reqName2TypeMap = reqName2Type.left().value();
+            for (Object jsonRequirementObj : jsonRequirements) {
+                // Requirement
+                Map<String, Object> requirementJsonWrapper = (Map<String, Object>) jsonRequirementObj;
+                String requirementName = requirementJsonWrapper.keySet().iterator().next();
+                String reqNameLowerCase = requirementName.toLowerCase();
+                if (reqNames.contains(reqNameLowerCase)) {
+                    log.debug("More than one requirement with same name {} (case-insensitive) in imported TOSCA file is invalid", reqNameLowerCase);
+                    return Either.right(componentsUtils.getResponseFormat(ActionStatus.IMPORT_DUPLICATE_REQ_CAP_NAME, "requirement", reqNameLowerCase));
+                }
+                reqNames.add(reqNameLowerCase);
+                Either<RequirementDefinition, ResponseFormat> eitherRequirement = createRequirementFromImportFile(requirementJsonWrapper.get(requirementName));
+                if (eitherRequirement.isRight()) {
+                    log.info("error when creating Requirement:{}, for resource:{}", requirementName, resource.getName());
+                    return Either.right(eitherRequirement.right().value());
+                }
+                RequirementDefinition requirementDef = eitherRequirement.left().value();
+                requirementDef.setName(requirementName);
+                if (moduleRequirements.containsKey(requirementDef.getCapability())) {
+                    moduleRequirements.get(requirementDef.getCapability()).add(requirementDef);
+                } else {
+                    List<RequirementDefinition> list = new ArrayList<RequirementDefinition>();
+                    list.add(requirementDef);
+                    moduleRequirements.put(requirementDef.getCapability(), list);
+                }
+
+                // Validating against req/cap of "derived from" node
+                Either<Boolean, ResponseFormat> validateVsParentCap = validateCapNameVsDerived(reqName2TypeMap, requirementDef.getCapability(), requirementDef.getName());
+                if (validateVsParentCap.isRight()) {
+                    return Either.right(validateVsParentCap.right().value());
+                }
+                if (!validateVsParentCap.left().value()) {
+                    log.debug("Requirement with name {} already exists in parent {}", requirementDef.getName(), parentResource.getName());
+                    ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.IMPORT_REQ_CAP_NAME_EXISTS_IN_DERIVED, "requirement", requirementDef.getName().toLowerCase(), parentResource.getName());
+                    return Either.right(responseFormat);
+                }
+            }
+            if (moduleRequirements.size() > 0) {
+                resource.setRequirements(moduleRequirements);
+            }
+
+        }
+        return eitherResult;
+
+    }
+
+    private Either<RequirementDefinition, ResponseFormat> createRequirementFromImportFile(Object requirementJson) {
+        RequirementDefinition requirement = new RequirementDefinition();
+        Either<RequirementDefinition, ResponseFormat> result = Either.left(requirement);
+
+        try {
+            if (requirementJson instanceof String) {
+                String requirementJsonString = (String) requirementJson;
+                requirement.setCapability(requirementJsonString);
+            } else if (requirementJson instanceof Map) {
+                Map<String, Object> requirementJsonMap = (Map<String, Object>) requirementJson;
+                if (requirementJsonMap.containsKey(ToscaTagNamesEnum.CAPABILITY.getElementName())) {
+                    requirement.setCapability((String) requirementJsonMap.get(ToscaTagNamesEnum.CAPABILITY.getElementName()));
+                }
+
+                if (requirementJsonMap.containsKey(ToscaTagNamesEnum.NODE.getElementName())) {
+                    requirement.setNode((String) requirementJsonMap.get(ToscaTagNamesEnum.NODE.getElementName()));
+                }
+
+                if (requirementJsonMap.containsKey(ToscaTagNamesEnum.RELATIONSHIP.getElementName())) {
+                    requirement.setRelationship((String) requirementJsonMap.get(ToscaTagNamesEnum.RELATIONSHIP.getElementName()));
+                }
+                if (requirementJsonMap.containsKey(ToscaTagNamesEnum.OCCURRENCES.getElementName())) {
+                    List<Object> occurrencesList = (List) requirementJsonMap.get(ToscaTagNamesEnum.OCCURRENCES.getElementName());
+                    Either<Boolean, ResponseFormat> validateAndSetOccurrencesStatus = validateOccurrences(occurrencesList);
+                    if (validateAndSetOccurrencesStatus.isRight()) {
+                        result = Either.right(validateAndSetOccurrencesStatus.right().value());
+                        return result;
+                    }
+                    if (validateAndSetOccurrencesStatus.left().value()) {
+                        requirement.setMinOccurrences(occurrencesList.get(0).toString());
+                        requirement.setMaxOccurrences(occurrencesList.get(1).toString());
+                    }
+
+                }
+            } else {
+                result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
+            }
+
+        } catch (Exception e) {
+            BeEcompErrorManager.getInstance().logBeSystemError("Import Resource - create Requirement");
+            log.debug("error when creating requirement, message:{}", e.getMessage(), e);
+            result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
+        }
+
+        return result;
+    }
+
+    private Either<Boolean, ResponseFormat> setProperties(Map<String, Object> toscaJson, Resource resource) {
+        Map<String, Object> reducedToscaJson = new HashMap<>(toscaJson);
+        ImportUtils.removeElementFromJsonMap(reducedToscaJson, "capabilities");
+        Either<Boolean, ResponseFormat> result = Either.left(true);
+        Either<Map<String, PropertyDefinition>, ResultStatusEnum> properties = ImportUtils.getProperties(reducedToscaJson);
+        if (properties.isLeft()) {
+            List<PropertyDefinition> propertiesList = new ArrayList<>();
+            Map<String, PropertyDefinition> value = properties.left().value();
+            if (value != null) {
+                for (Entry<String, PropertyDefinition> entry : value.entrySet()) {
+                    String name = entry.getKey();
+                    if(!PROPERTY_NAME_PATTERN_IGNORE_LENGTH.matcher(name).matches()){
+                        log.debug("The property with invalid name {} occured upon import resource {}. ", name, resource.getName());
+                        result = Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromResultStatusEnum(ResultStatusEnum.INVALID_PROPERTY_NAME, JsonPresentationFields.PROPERTY)));
+                    }
+                    PropertyDefinition propertyDefinition = entry.getValue();
+                    propertyDefinition.setName(name);
+                    propertiesList.add(propertyDefinition);
+                }
+            }
+            resource.setProperties(propertiesList);
+        } else if(properties.right().value() != ResultStatusEnum.ELEMENT_NOT_FOUND){
+            result = Either.right(componentsUtils.getResponseFormat(componentsUtils.convertFromResultStatusEnum(properties.right().value(), JsonPresentationFields.PROPERTY)));
+        }
+        return result;
+    }
+
+    private ResultStatusEnum setAttributes(Map<String, Object> toscaJson, Resource resource) {
+        ResultStatusEnum result = ResultStatusEnum.OK;
+        Either<Map<String, PropertyDefinition>, ResultStatusEnum> attributes = ImportUtils.getAttributes(toscaJson);
+        if (attributes.isLeft()) {
+            List<PropertyDefinition> attributeList = new ArrayList<>();
+            Map<String, PropertyDefinition> value = attributes.left().value();
+            if (value != null) {
+                for (Entry<String, PropertyDefinition> entry : value.entrySet()) {
+                    String name = entry.getKey();
+                    PropertyDefinition attributeDef = entry.getValue();
+                    attributeDef.setName(name);
+                    attributeList.add(attributeDef);
+                }
+            }
+            resource.setAttributes(attributeList);
+        } else {
+            result = attributes.right().value();
+        }
+        return result;
+    }
+
+    private Either<Resource, ResponseFormat> setDerivedFrom(Map<String, Object> toscaJson, Resource resource) {
+        Either<String, ResultStatusEnum> toscaDerivedFromElement = ImportUtils.findFirstToscaStringElement(toscaJson, ToscaTagNamesEnum.DERIVED_FROM);
+        Resource derivedFromResource = null;
+        if (toscaDerivedFromElement.isLeft()) {
+            String derivedFrom = toscaDerivedFromElement.left().value();
+            log.debug("Derived from TOSCA name is {}", derivedFrom);
+            resource.setDerivedFrom(Arrays.asList(new String[] { derivedFrom }));
+            Either<Resource, StorageOperationStatus> latestByToscaResourceName = toscaOperationFacade.getLatestByToscaResourceName(derivedFrom);
+
+            if (latestByToscaResourceName.isRight()) {
+                StorageOperationStatus operationStatus = latestByToscaResourceName.right().value();
+                if (operationStatus.equals(StorageOperationStatus.NOT_FOUND)) {
+                    operationStatus = StorageOperationStatus.PARENT_RESOURCE_NOT_FOUND;
+                }
+                log.debug("Error when fetching parent resource {}, error: {}", derivedFrom, operationStatus);
+                ActionStatus convertFromStorageResponse = componentsUtils.convertFromStorageResponse(operationStatus);
+                BeEcompErrorManager.getInstance().logBeComponentMissingError("Import TOSCA YAML", "resource", derivedFrom);
+                return Either.right(componentsUtils.getResponseFormat(convertFromStorageResponse, derivedFrom));
+            }
+            derivedFromResource = latestByToscaResourceName.left().value();
+        }
+        return Either.left(derivedFromResource);
+    }
+
+    private Either<Boolean, ResponseFormat> setCapabilities(Map<String, Object> toscaJson, Resource resource, Resource parentResource) {// Note that parentResource can be null
+        Either<Boolean, ResponseFormat> eitherResult = Either.left(true);
+        Either<Map<String, Object>, ResultStatusEnum> toscaCapabilities = ImportUtils.findFirstToscaMapElement(toscaJson, ToscaTagNamesEnum.CAPABILITIES);
+        if (toscaCapabilities.isLeft()) {
+            Map<String, Object> jsonCapabilities = toscaCapabilities.left().value();
+            Map<String, List<CapabilityDefinition>> moduleCapabilities = new HashMap<String, List<CapabilityDefinition>>();
+            Iterator<Entry<String, Object>> capabilitiesNameValue = jsonCapabilities.entrySet().iterator();
+            Set<String> capNames = new HashSet<>();
+            // Getting flattened list of capabilities of parent node - cap name
+            // to cap type
+            Either<Map<String, String>, ResponseFormat> capName2Type = getCapName2Type(parentResource);
+            if (capName2Type.isRight()) {
+                ResponseFormat responseFormat = capName2Type.right().value();
+                log.debug("Error during setting capabilities of imported resource: {}", responseFormat);
+                return Either.right(responseFormat);
+            }
+            Map<String, String> capName2TypeMap = capName2Type.left().value();
+            while (capabilitiesNameValue.hasNext()) {
+                Entry<String, Object> capabilityNameValue = capabilitiesNameValue.next();
+
+                // Validating that no req/cap duplicates exist in imported YAML
+                String capNameLowerCase = capabilityNameValue.getKey().toLowerCase();
+                if (capNames.contains(capNameLowerCase)) {
+                    log.debug("More than one capability with same name {} (case-insensitive) in imported TOSCA file is invalid", capNameLowerCase);
+                    return Either.right(componentsUtils.getResponseFormat(ActionStatus.IMPORT_DUPLICATE_REQ_CAP_NAME, "capability", capNameLowerCase));
+                }
+                capNames.add(capNameLowerCase);
+
+                Either<CapabilityDefinition, ResponseFormat> eitherCapability = createCapabilityFromImportFile(capabilityNameValue.getValue());
+                if (eitherCapability.isRight()) {
+                    log.debug("error when creating capability:{}, for resource:{}", capabilityNameValue.getKey(), resource.getName());
+                    return Either.right(eitherCapability.right().value());
+                }
+
+                CapabilityDefinition capabilityDef = eitherCapability.left().value();
+                capabilityDef.setName(capabilityNameValue.getKey());
+                if (moduleCapabilities.containsKey(capabilityDef.getType())) {
+                    moduleCapabilities.get(capabilityDef.getType()).add(capabilityDef);
+                } else {
+                    List<CapabilityDefinition> list = new ArrayList<CapabilityDefinition>();
+                    list.add(capabilityDef);
+                    moduleCapabilities.put(capabilityDef.getType(), list);
+                }
+
+                // Validating against req/cap of "derived from" node
+                Either<Boolean, ResponseFormat> validateVsParentCap = validateCapNameVsDerived(capName2TypeMap, capabilityDef.getType(), capabilityDef.getName());
+                if (validateVsParentCap.isRight()) {
+                    return Either.right(validateVsParentCap.right().value());
+                }
+                if (!validateVsParentCap.left().value()) {
+                    // Here parentResource is for sure not null, so it's
+                    // null-safe
+                    log.debug("Capability with name {} already exists in parent {}", capabilityDef.getName(), parentResource.getName());
+                    ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.IMPORT_REQ_CAP_NAME_EXISTS_IN_DERIVED, "capability", capabilityDef.getName().toLowerCase(), parentResource.getName());
+                    return Either.right(responseFormat);
+                }
+            }
+            if (moduleCapabilities.size() > 0) {
+                resource.setCapabilities(moduleCapabilities);
+            }
+        }
+
+        return eitherResult;
+
+    }
+
+    private Either<Map<String, String>, ResponseFormat> getCapName2Type(Resource parentResource) {
+        Map<String, String> capName2type = new HashMap<>();
+        if (parentResource != null) {
+            Map<String, List<CapabilityDefinition>> capabilities = parentResource.getCapabilities();
+            if (capabilities != null) {
+                for (List<CapabilityDefinition> capDefinitions : capabilities.values()) {
+                    for (CapabilityDefinition capDefinition : capDefinitions) {
+                        String nameLowerCase = capDefinition.getName().toLowerCase();
+                        if (capName2type.get(nameLowerCase) != null) {
+                            String parentResourceName = parentResource.getName();
+                            log.debug("Resource with name {} has more than one capability with name {}, ignoring case", parentResourceName, nameLowerCase);
+                            BeEcompErrorManager.getInstance().logInternalDataError("Import resource", "Parent resource " + parentResourceName + " of imported resource has one or more capabilities with name " + nameLowerCase, ErrorSeverity.ERROR);
+                            return Either.right(componentsUtils.getResponseFormat(ActionStatus.GENERAL_ERROR));
+                        }
+                        capName2type.put(nameLowerCase, capDefinition.getType());
+                    }
+                }
+            }
+        }
+        return Either.left(capName2type);
+    }
+
+    private Either<Map<String, String>, ResponseFormat> getReqName2Type(Resource parentResource) {
+        Map<String, String> reqName2type = new HashMap<>();
+        if (parentResource != null) {
+            Map<String, List<RequirementDefinition>> requirements = parentResource.getRequirements();
+            if (requirements != null) {
+                for (List<RequirementDefinition> reqDefinitions : requirements.values()) {
+                    for (RequirementDefinition reqDefinition : reqDefinitions) {
+                        String nameLowerCase = reqDefinition.getName().toLowerCase();
+                        if (reqName2type.get(nameLowerCase) != null) {
+                            String parentResourceName = parentResource.getName();
+                            log.debug("Resource with name {} has more than one requirement with name {}, ignoring case", parentResourceName, nameLowerCase);
+                            BeEcompErrorManager.getInstance().logInternalDataError("Import resource", "Parent resource " + parentResourceName + " of imported resource has one or more requirements with name " + nameLowerCase, ErrorSeverity.ERROR);
+                            return Either.right(componentsUtils.getResponseFormat(ActionStatus.GENERAL_ERROR));
+                        }
+                        reqName2type.put(nameLowerCase, reqDefinition.getCapability());
+                    }
+                }
+            }
+        }
+        return Either.left(reqName2type);
+    }
+
+    private Either<Boolean, ResponseFormat> validateCapNameVsDerived(Map<String, String> parentCapName2Type, String childCapabilityType, String reqCapName) {
+        String capNameLowerCase = reqCapName.toLowerCase();
+        log.trace("Validating capability {} vs parent resource", capNameLowerCase);
+        String parentCapType = parentCapName2Type.get(capNameLowerCase);
+        if (parentCapType != null) {
+            if (childCapabilityType.equals(parentCapType)) {
+                log.debug("Capability with name {} is of same type {} for imported resource and its parent - this is OK", capNameLowerCase, childCapabilityType);
+                return Either.left(true);
+            }
+            Either<Boolean, StorageOperationStatus> capabilityTypeDerivedFrom = capabilityTypeOperation.isCapabilityTypeDerivedFrom(childCapabilityType, parentCapType);
+            if (capabilityTypeDerivedFrom.isRight()) {
+                log.debug("Couldn't check whether imported resource capability derives from its parent's capability");
+                ResponseFormat responseFormat = componentsUtils.getResponseFormat(componentsUtils.convertFromStorageResponse(capabilityTypeDerivedFrom.right().value()));
+                return Either.right(responseFormat);
+            }
+            return Either.left(capabilityTypeDerivedFrom.left().value());
+        }
+        return Either.left(true);
+    }
+
+    private Either<CapabilityDefinition, ResponseFormat> createCapabilityFromImportFile(Object capabilityJson) {
+
+        CapabilityDefinition capabilityDefinition = new CapabilityDefinition();
+        Either<CapabilityDefinition, ResponseFormat> result = Either.left(capabilityDefinition);
+
+        try {
+            if (capabilityJson instanceof String) {
+                String capabilityJsonString = (String) capabilityJson;
+                capabilityDefinition.setType(capabilityJsonString);
+            } else if (capabilityJson instanceof Map) {
+                Map<String, Object> capabilityJsonMap = (Map<String, Object>) capabilityJson;
+                // Type
+                if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.TYPE.getElementName())) {
+                    capabilityDefinition.setType((String) capabilityJsonMap.get(ToscaTagNamesEnum.TYPE.getElementName()));
+                }
+                // ValidSourceTypes
+                if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.VALID_SOURCE_TYPES.getElementName())) {
+                    capabilityDefinition.setValidSourceTypes((List<String>) capabilityJsonMap.get(ToscaTagNamesEnum.VALID_SOURCE_TYPES.getElementName()));
+                }
+                // ValidSourceTypes
+                if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.DESCRIPTION.getElementName())) {
+                    capabilityDefinition.setDescription((String) capabilityJsonMap.get(ToscaTagNamesEnum.DESCRIPTION.getElementName()));
+                }
+                if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.OCCURRENCES.getElementName())) {
+                    List<Object> occurrencesList = (List) capabilityJsonMap.get(ToscaTagNamesEnum.OCCURRENCES.getElementName());
+                    Either<Boolean, ResponseFormat> validateAndSetOccurrencesStatus = validateOccurrences(occurrencesList);
+                    if (validateAndSetOccurrencesStatus.isRight()) {
+                        result = Either.right(validateAndSetOccurrencesStatus.right().value());
+                        return result;
+                    }
+                    if (validateAndSetOccurrencesStatus.left().value()) {
+                        capabilityDefinition.setMinOccurrences(occurrencesList.get(0).toString());
+                        capabilityDefinition.setMaxOccurrences(occurrencesList.get(1).toString());
+                    }
+                }
+                if (capabilityJsonMap.containsKey(ToscaTagNamesEnum.PROPERTIES.getElementName())) {
+
+                    Either<Map<String, PropertyDefinition>, ResultStatusEnum> propertiesRes = ImportUtils.getProperties(capabilityJsonMap);
+                    if (propertiesRes.isRight()) {
+                        result = Either.right(componentsUtils.getResponseFormat(ActionStatus.PROPERTY_NOT_FOUND));
+                        return result;
+                    } else {
+                        propertiesRes.left().value().entrySet().stream().forEach(e -> e.getValue().setName(e.getKey().toLowerCase()));
+                        List<ComponentInstanceProperty> capabilityProperties = propertiesRes.left().value().values().stream().map(p -> new ComponentInstanceProperty(p, p.getDefaultValue(), null)).collect(Collectors.toList());
+                        capabilityDefinition.setProperties(capabilityProperties);
+                    }
+                }
+            } else if (!(capabilityJson instanceof List)) {
+
+                result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
+
+            }
+        } catch (Exception e) {
+            BeEcompErrorManager.getInstance().logBeSystemError("Import Resource - create capability");
+            log.debug("error when creating capability, message:{}", e.getMessage(), e);
+            result = Either.right(componentsUtils.getResponseFormat(ActionStatus.INVALID_YAML));
+        }
+
+        return result;
+    }
+
+    private ResponseFormat handleImportResourceExecption(UploadResourceInfo resourceMetaData, User user, boolean isNormative, RuntimeException e) {
+        String payloadName = (resourceMetaData != null) ? resourceMetaData.getPayloadName() : "";
+        BeEcompErrorManager.getInstance().logBeSystemError("Import Resource " + payloadName);
+
+        log.debug("Error when importing resource from payload:{} Exception text: {}", payloadName, e.getMessage(), e);
+        ResponseFormat errorResponseWrapper = getResponseFormatManager().getResponseFormat(ActionStatus.GENERAL_ERROR);
+        auditErrorImport(resourceMetaData, user, errorResponseWrapper, isNormative);
+        return errorResponseWrapper;
+    }
+
+    private void auditErrorImport(UploadResourceInfo resourceMetaData, User user, ResponseFormat errorResponseWrapper, boolean isNormative) {
+//        EnumMap<AuditingFieldsKeysEnum, Object> auditingFields = new EnumMap<>(AuditingFieldsKeysEnum.class);
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_ACTION, AuditingActionEnum.IMPORT_RESOURCE.getName());
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_NAME, resourceMetaData.getName());
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_TYPE, ComponentTypeEnum.RESOURCE.getValue());
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_PREV_VERSION, "");
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_MODIFIER_UID, user.getUserId());
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_PREV_STATE, "");
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_INVARIANT_UUID, "");
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_STATUS, errorResponseWrapper.getStatus());
+//        String message = "";
+//        if (errorResponseWrapper.getMessageId() != null) {
+//            message = errorResponseWrapper.getMessageId() + ": ";
+//        }
+//        message += errorResponseWrapper.getFormattedMessage();
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_DESC, message);
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_MODIFIER_NAME, user.getFirstName() + " " + user.getLastName());
+
+        String version, lifeCycleState;
+        if (isNormative) {
+            version = Constants.FIRST_CERTIFIED_VERSION_VERSION;
+            lifeCycleState = LifecycleStateEnum.CERTIFIED.name();
+        } else {
+            version = "";
+            lifeCycleState = LifecycleStateEnum.NOT_CERTIFIED_CHECKOUT.name();
+
+        }
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_CURR_VERSION, version);
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_CURR_STATE, lifeCycleState);
+//        auditingFields.put(AuditingFieldsKeysEnum.AUDIT_RESOURCE_TOSCA_NODE_TYPE, "");
+//        getAuditingManager().auditEvent(auditingFields);
+
+
+        String message = "";
+        if (errorResponseWrapper.getMessageId() != null) {
+            message = errorResponseWrapper.getMessageId() + ": ";
+        }
+        message += errorResponseWrapper.getFormattedMessage();
+
+
+
+        AuditEventFactory factory = new AuditImportResourceAdminEventFactory(
+                CommonAuditData.newBuilder()
+                        .status(errorResponseWrapper.getStatus())
+                        .description(message)
+                        .requestId(ThreadLocalsHolder.getUuid())
+                        .build(),
+                ResourceAuditData.newBuilder()
+                        .state(lifeCycleState)
+                        .version(version)
+                        .build(),
+                ResourceAuditData.newBuilder()
+                        .state("")
+                        .version("")
+                        .build(),
+                ComponentTypeEnum.RESOURCE.getValue(), resourceMetaData.getName(), "", user, "");
+        getAuditingManager().auditEvent(factory);
+
+    }
+
+    private void setMetaDataFromJson(UploadResourceInfo resourceMetaData, Resource resource) {
+        this.populateResourceMetadata(resourceMetaData, resource);
+        resource.setCreatorUserId(resourceMetaData.getContactId());
+        List<CategoryDefinition> categories = resourceMetaData.getCategories();
+        calculateResourceIsAbstract(resource, categories);
+    }
+
+    private void calculateResourceIsAbstract(Resource resource, List<CategoryDefinition> categories) {
+        if (categories != null && !categories.isEmpty()) {
+            CategoryDefinition categoryDef = categories.get(0);
+            resource.setAbstract(false);
+            if (categoryDef != null && categoryDef.getName() != null && categoryDef.getName().equals(Constants.ABSTRACT_CATEGORY_NAME)) {
+                SubCategoryDefinition subCategoryDef = categoryDef.getSubcategories().get(0);
+                if (subCategoryDef != null && subCategoryDef.getName().equals(Constants.ABSTRACT_SUBCATEGORY)) {
+                    resource.setAbstract(true);
+                }
+            }
+        }
+    }
+
+    private void setConstantMetaData(Resource resource, boolean shouldBeCertified) {
+        String version;
+        LifecycleStateEnum state;
+        if(shouldBeCertified){
+            version = ImportUtils.Constants.FIRST_CERTIFIED_VERSION_VERSION;
+            state = ImportUtils.Constants.NORMATIVE_TYPE_LIFE_CYCLE;
+        }else{
+            version = ImportUtils.Constants.FIRST_NON_CERTIFIED_VERSION;
+            state = ImportUtils.Constants.NORMATIVE_TYPE_LIFE_CYCLE_NOT_CERTIFIED_CHECKOUT;
+        }
+        resource.setVersion(version);
+        resource.setLifecycleState(state);
+        resource.setHighestVersion(ImportUtils.Constants.NORMATIVE_TYPE_HIGHEST_VERSION);
+        resource.setVendorName(ImportUtils.Constants.VENDOR_NAME);
+        resource.setVendorRelease(ImportUtils.Constants.VENDOR_RELEASE);
+
+    }
+
+    private Either<Boolean, ResponseFormat> validateOccurrences(List<Object> occurrensesList) {
+
+        if (!ValidationUtils.validateListNotEmpty(occurrensesList)) {
+            log.debug("Occurrenses list empty");
+            ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+            return Either.right(responseFormat);
+        }
+
+        if (occurrensesList.size() < 2) {
+            log.debug("Occurrenses list size not 2");
+            ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+            return Either.right(responseFormat);
+        }
+        Object minObj = occurrensesList.get(0);
+        Object maxObj = occurrensesList.get(1);
+        Integer minOccurrences = null;
+        Integer maxOccurrences = null;
+        if (minObj instanceof Integer)
+            minOccurrences = (Integer) minObj;
+        else {
+            log.debug("Invalid occurrenses format. low_bound occurrense must be Integer {}", minObj);
+            ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+            return Either.right(responseFormat);
+        }
+        if (minOccurrences < 0) {
+            log.debug("Invalid occurrenses format.low_bound occurrense negative {}", minOccurrences);
+            ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+            return Either.right(responseFormat);
+        }
+
+        if (maxObj instanceof String) {
+            if ("UNBOUNDED".equals(maxObj)) {
+                return Either.left(true);
+            } else {
+                log.debug("Invalid occurrenses format. Max occurrence is {}", maxObj);
+                ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+                return Either.right(responseFormat);
+            }
+        } else {
+            if (maxObj instanceof Integer)
+                maxOccurrences = (Integer) maxObj;
+            else {
+                log.debug("Invalid occurrenses format.  Max occurrence is {}", maxObj);
+                ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+                return Either.right(responseFormat);
+            }
+
+            if (maxOccurrences <= 0 || maxOccurrences < minOccurrences) {
+                log.debug("Invalid occurrenses format.  min occurrence is {}, Max occurrence is {}", minOccurrences, maxOccurrences);
+                ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_OCCURRENCES);
+                return Either.right(responseFormat);
+            }
+        }
+
+        return Either.left(true);
+
+    }
+
+    public synchronized void init(ServletContext servletContext) {
+        if (this.servletContext == null) {
+            this.servletContext = servletContext;
+            responseFormatManager = ResponseFormatManager.getInstance();
+            resourceBusinessLogic = getResourceBL(servletContext);
+        }
+    }
+
+    public boolean isResourceExist(String resourceName) {
+        return resourceBusinessLogic.isResourceExist(resourceName);
+    }
+
+    private ResourceBusinessLogic getResourceBL(ServletContext context) {
+        WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(org.openecomp.sdc.common.api.Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
+        WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
+        ResourceBusinessLogic resourceBl = webApplicationContext.getBean(ResourceBusinessLogic.class);
+        return resourceBl;
+    }
+
+    public ServletContext getServletContext() {
+        return servletContext;
+    }
+
+    public AuditingManager getAuditingManager() {
+        return auditingManager;
+    }
+
+    public ResponseFormatManager getResponseFormatManager() {
+        return responseFormatManager;
+    }
+
+    public void setResponseFormatManager(ResponseFormatManager responseFormatManager) {
+        this.responseFormatManager = responseFormatManager;
+    }
+
+    public ResourceBusinessLogic getResourceBusinessLogic() {
+        return resourceBusinessLogic;
+    }
+
+    public void setResourceBusinessLogic(ResourceBusinessLogic resourceBusinessLogic) {
+        this.resourceBusinessLogic = resourceBusinessLogic;
+    }
+
+    public Logger getLog() {
+        return log;
+    }
+
+    public IGraphLockOperation getGraphLockOperation() {
+        return graphLockOperation;
+    }
+
+    public void setGraphLockOperation(IGraphLockOperation graphLockOperation) {
+        this.graphLockOperation = graphLockOperation;
+    }
+
+    public void setServletContext(ServletContext servletContext) {
+        this.servletContext = servletContext;
+    }
+
+    public void setAuditingManager(AuditingManager auditingManager) {
+        this.auditingManager = auditingManager;
+    }
 
 
 }