Fix 'CSAR contains duplicate syntax'-bug
[sdc.git] / catalog-be / src / main / java / org / openecomp / sdc / be / tosca / ToscaExportHandler.java
index ddea498..8c802bc 100644 (file)
  * limitations under the License.
  * ============LICENSE_END=========================================================
  */
-
 package org.openecomp.sdc.be.tosca;
 
 import static org.apache.commons.collections.CollectionUtils.isNotEmpty;
 import static org.apache.commons.collections.MapUtils.isNotEmpty;
 import static org.openecomp.sdc.be.components.utils.PropertiesUtils.resolvePropertyValueFromInput;
-import static org.openecomp.sdc.be.tosca.InterfacesOperationsConverter.addInterfaceTypeElement;
+import static org.openecomp.sdc.common.api.Constants.ADDITIONAL_TYPE_DEFINITIONS;
 import static org.openecomp.sdc.tosca.datatypes.ToscaFunctions.GET_ATTRIBUTE;
 import static org.openecomp.sdc.tosca.datatypes.ToscaFunctions.GET_INPUT;
 import static org.openecomp.sdc.tosca.datatypes.ToscaFunctions.GET_PROPERTY;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.SerializationFeature;
+import com.google.common.primitives.Ints;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.stream.JsonReader;
 import fj.data.Either;
-import java.beans.IntrospectionException;
+
+import java.io.StringReader;
+import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
@@ -48,28 +54,36 @@ import java.util.Optional;
 import java.util.Set;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
+
 import org.apache.commons.collections.CollectionUtils;
 import org.apache.commons.collections.MapUtils;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.tuple.ImmutablePair;
 import org.apache.commons.lang3.tuple.ImmutableTriple;
 import org.apache.commons.lang3.tuple.Triple;
 import org.onap.sdc.tosca.services.YamlUtil;
 import org.openecomp.sdc.be.components.impl.exceptions.SdcResourceNotFoundException;
+import org.openecomp.sdc.be.config.CategoryBaseTypeConfig;
+import org.openecomp.sdc.be.config.Configuration;
 import org.openecomp.sdc.be.config.ConfigurationManager;
 import org.openecomp.sdc.be.dao.janusgraph.JanusGraphOperationStatus;
+import org.openecomp.sdc.be.data.model.ToscaImportByModel;
 import org.openecomp.sdc.be.datatypes.components.ResourceMetadataDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.AttributeDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.CINodeFilterDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.InterfaceDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.ListDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.PropertyDataDefinition;
+import org.openecomp.sdc.be.datatypes.elements.PropertyFilterConstraintDataDefinition;
+import org.openecomp.sdc.be.datatypes.elements.PropertyFilterDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.RequirementNodeFilterCapabilityDataDefinition;
-import org.openecomp.sdc.be.datatypes.elements.RequirementNodeFilterPropertyDataDefinition;
-import org.openecomp.sdc.be.datatypes.elements.RequirementSubstitutionFilterPropertyDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.SubstitutionFilterDataDefinition;
+import org.openecomp.sdc.be.datatypes.elements.SubstitutionFilterPropertyDataDefinition;
 import org.openecomp.sdc.be.datatypes.elements.ToscaArtifactDataDefinition;
+import org.openecomp.sdc.be.datatypes.elements.ToscaFunction;
 import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
+import org.openecomp.sdc.be.datatypes.enums.ConstraintType;
 import org.openecomp.sdc.be.datatypes.enums.JsonPresentationFields;
 import org.openecomp.sdc.be.datatypes.enums.OriginTypeEnum;
 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
@@ -80,6 +94,7 @@ import org.openecomp.sdc.be.model.CapabilityDefinition;
 import org.openecomp.sdc.be.model.CapabilityRequirementRelationship;
 import org.openecomp.sdc.be.model.Component;
 import org.openecomp.sdc.be.model.ComponentInstance;
+import org.openecomp.sdc.be.model.ComponentInstanceAttribute;
 import org.openecomp.sdc.be.model.ComponentInstanceInput;
 import org.openecomp.sdc.be.model.ComponentInstanceInterface;
 import org.openecomp.sdc.be.model.ComponentInstanceProperty;
@@ -100,19 +115,25 @@ import org.openecomp.sdc.be.model.jsonjanusgraph.operations.ToscaOperationFacade
 import org.openecomp.sdc.be.model.jsonjanusgraph.utils.ModelConverter;
 import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
 import org.openecomp.sdc.be.model.operations.impl.InterfaceLifecycleOperation;
+import org.openecomp.sdc.be.model.operations.impl.ModelOperation;
+import org.openecomp.sdc.be.model.tosca.ToscaType;
+import org.openecomp.sdc.be.model.tosca.converters.ToscaMapValueConverter;
+import org.openecomp.sdc.be.tosca.PropertyConvertor.PropertyType;
 import org.openecomp.sdc.be.tosca.builder.ToscaRelationshipBuilder;
+import org.openecomp.sdc.be.tosca.exception.ToscaConversionException;
 import org.openecomp.sdc.be.tosca.model.CapabilityFilter;
 import org.openecomp.sdc.be.tosca.model.NodeFilter;
 import org.openecomp.sdc.be.tosca.model.SubstitutionMapping;
+import org.openecomp.sdc.be.tosca.model.ToscaAttribute;
 import org.openecomp.sdc.be.tosca.model.ToscaCapability;
 import org.openecomp.sdc.be.tosca.model.ToscaDataType;
 import org.openecomp.sdc.be.tosca.model.ToscaGroupTemplate;
-import org.openecomp.sdc.be.tosca.model.ToscaMetadata;
 import org.openecomp.sdc.be.tosca.model.ToscaNodeTemplate;
 import org.openecomp.sdc.be.tosca.model.ToscaNodeType;
 import org.openecomp.sdc.be.tosca.model.ToscaPolicyTemplate;
 import org.openecomp.sdc.be.tosca.model.ToscaProperty;
 import org.openecomp.sdc.be.tosca.model.ToscaPropertyAssignment;
+import org.openecomp.sdc.be.tosca.model.ToscaPropertyConstraint;
 import org.openecomp.sdc.be.tosca.model.ToscaRelationshipTemplate;
 import org.openecomp.sdc.be.tosca.model.ToscaRequirement;
 import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
@@ -121,8 +142,10 @@ import org.openecomp.sdc.be.tosca.model.ToscaTemplateRequirement;
 import org.openecomp.sdc.be.tosca.model.ToscaTopolgyTemplate;
 import org.openecomp.sdc.be.tosca.utils.ForwardingPathToscaUtil;
 import org.openecomp.sdc.be.tosca.utils.InputConverter;
+import org.openecomp.sdc.be.tosca.utils.OutputConverter;
+import org.openecomp.sdc.common.log.enums.EcompLoggerErrorCode;
 import org.openecomp.sdc.common.log.wrappers.Logger;
-import org.openecomp.sdc.externalupload.utils.ServiceUtils;
+import org.openecomp.sdc.tosca.datatypes.ToscaFunctions;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.yaml.snakeyaml.DumperOptions;
 import org.yaml.snakeyaml.DumperOptions.FlowStyle;
@@ -140,116 +163,196 @@ import org.yaml.snakeyaml.representer.Representer;
 @org.springframework.stereotype.Component("tosca-export-handler")
 public class ToscaExportHandler {
 
+    public static final String ASSET_TOSCA_TEMPLATE = "assettoscatemplate";
     private static final Logger log = Logger.getLogger(ToscaExportHandler.class);
-
-    private ApplicationDataTypeCache dataTypeCache;
-    private ToscaOperationFacade toscaOperationFacade;
-    private CapabilityRequirementConverter capabilityRequirementConverter;
-    private PolicyExportParser policyExportParser;
-    private GroupExportParser groupExportParser;
-    private PropertyConvertor propertyConvertor;
-    private InputConverter inputConverter;
-    private InterfaceLifecycleOperation interfaceLifecycleOperation;
-    private InterfacesOperationsConverter interfacesOperationsConverter;
+    private static final String INVARIANT_UUID = "invariantUUID";
+    private static final String TOSCA_VERSION = "tosca_simple_yaml_1_3";
+    private static final String SERVICE_NODE_TYPE_PREFIX = "org.openecomp.service.";
+    private static final String IMPORTS_FILE_KEY = "file";
+    private static final String TOSCA_INTERFACE_NAME = "-interface.yml";
+    private static final String FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION = "convertToToscaTemplate - failed to get Default Imports section from configuration";
+    private static final String NOT_SUPPORTED_COMPONENT_TYPE = "Not supported component type {}";
+    private static final String NATIVE_ROOT = "tosca.nodes.Root";
+    private static final List<String> EXCLUDED_CATEGORY_SPECIFIC_METADATA = List
+            .of("Service Function", "Service Role", "Naming Policy", "Service Type");
+    private static final YamlUtil yamlUtil = new YamlUtil();
+    private final ApplicationDataTypeCache applicationDataTypeCache;
+    private final ToscaOperationFacade toscaOperationFacade;
+    private final CapabilityRequirementConverter capabilityRequirementConverter;
+    private final PolicyExportParser policyExportParser;
+    private final GroupExportParser groupExportParser;
+    private final PropertyConvertor propertyConvertor;
+    private final AttributeConverter attributeConverter;
+    private final InputConverter inputConverter;
+    private final OutputConverter outputConverter;
+    private final InterfaceLifecycleOperation interfaceLifecycleOperation;
+    private final InterfacesOperationsConverter interfacesOperationsConverter;
+    private final ModelOperation modelOperation;
 
     @Autowired
-    public ToscaExportHandler(ApplicationDataTypeCache dataTypeCache, ToscaOperationFacade toscaOperationFacade,
-                              CapabilityRequirementConverter capabilityRequirementConverter,
-                              PolicyExportParser policyExportParser,
-                              GroupExportParser groupExportParser, PropertyConvertor propertyConvertor,
-                              InputConverter inputConverter,
-                              InterfaceLifecycleOperation interfaceLifecycleOperation,
-                              InterfacesOperationsConverter interfacesOperationsConverter) {
-        this.dataTypeCache = dataTypeCache;
+    public ToscaExportHandler(final ApplicationDataTypeCache applicationDataTypeCache,
+                              final ToscaOperationFacade toscaOperationFacade,
+                              final CapabilityRequirementConverter capabilityRequirementConverter,
+                              final PolicyExportParser policyExportParser,
+                              final GroupExportParser groupExportParser,
+                              final PropertyConvertor propertyConvertor,
+                              final AttributeConverter attributeConverter,
+                              final InputConverter inputConverter,
+                              final OutputConverter outputConverter,
+                              final InterfaceLifecycleOperation interfaceLifecycleOperation,
+                              final InterfacesOperationsConverter interfacesOperationsConverter,
+                              final ModelOperation modelOperation) {
+        this.applicationDataTypeCache = applicationDataTypeCache;
         this.toscaOperationFacade = toscaOperationFacade;
         this.capabilityRequirementConverter = capabilityRequirementConverter;
         this.policyExportParser = policyExportParser;
         this.groupExportParser = groupExportParser;
         this.propertyConvertor = propertyConvertor;
+        this.attributeConverter = attributeConverter;
         this.inputConverter = inputConverter;
+        this.outputConverter = outputConverter;
         this.interfaceLifecycleOperation = interfaceLifecycleOperation;
         this.interfacesOperationsConverter = interfacesOperationsConverter;
+        this.modelOperation = modelOperation;
     }
 
-    private static final String TOSCA_VERSION = "tosca_simple_yaml_1_3";
-    private static final String SERVICE_NODE_TYPE_PREFIX = "org.openecomp.service.";
-    private static final String IMPORTS_FILE_KEY = "file";
-    private static final String TOSCA_INTERFACE_NAME = "-interface.yml";
-    public static final String ASSET_TOSCA_TEMPLATE = "assettoscatemplate";
-    private static final String FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION = "convertToToscaTemplate - failed to get Default Imports section from configuration";
-    private static final String NOT_SUPPORTED_COMPONENT_TYPE = "Not supported component type {}";
-    private static final String NATIVE_ROOT = "tosca.nodes.Root";
-    private static YamlUtil yamlUtil = new YamlUtil();
+    public static String getInterfaceFilename(String artifactName) {
+        return artifactName.substring(0, artifactName.lastIndexOf('.')) + TOSCA_INTERFACE_NAME;
+    }
 
-    public ToscaExportHandler() {
+    private static void removeOperationImplementationForProxyNodeType(Map<String, InterfaceDefinition> proxyComponentInterfaces) {
+        if (MapUtils.isEmpty(proxyComponentInterfaces)) {
+            return;
+        }
+        proxyComponentInterfaces.values().stream().map(InterfaceDataDefinition::getOperations).filter(MapUtils::isNotEmpty)
+                .forEach(operations -> operations.values().forEach(operation -> operation.setImplementation(null)));
     }
 
     public Either<ToscaRepresentation, ToscaError> exportComponent(Component component) {
-        return convertToToscaTemplate(component).left().map(this::createToscaRepresentation);
+        return convertToToscaTemplate(component, false).left().map(this::createToscaRepresentation);
     }
 
-    public Either<ToscaRepresentation, ToscaError> exportComponentInterface(final Component component,
-                                                                            final boolean isAssociatedComponent) {
-        final List<Map<String, Map<String, String>>> defaultToscaImportConfig = getDefaultToscaImportConfig();
-        if (CollectionUtils.isEmpty(defaultToscaImportConfig)) {
+    public Either<ToscaRepresentation, ToscaError> exportComponent(Component component, Boolean isSkipImports) {
+        return convertToToscaTemplate(component, isSkipImports).left().map(this::createToscaRepresentation);
+    }
+
+    public Either<ToscaRepresentation, ToscaError> exportDataType(DataTypeDefinition dataTypeDefinition) {
+        return convertDataTypeToToscaTemplate(dataTypeDefinition).left().map(this::createToscaRepresentation);
+    }
+
+    public Either<ToscaRepresentation, ToscaError> exportComponentInterface(final Component component, final boolean isAssociatedComponent) {
+        final List<Map<String, Map<String, String>>> imports = new ArrayList<>(getDefaultToscaImports(component.getModel(), false));
+        if (CollectionUtils.isEmpty(imports)) {
             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
             return Either.right(ToscaError.GENERAL_ERROR);
         }
+        List<Triple<String, String, Component>> dependencies = new ArrayList<>();
+        if (component.getDerivedFromGenericType() != null && !component.getDerivedFromGenericType()
+                .startsWith("org.openecomp.resource.abstract.nodes.")) {
+            final Either<Component, StorageOperationStatus> baseType = toscaOperationFacade
+                    .getByToscaResourceNameAndVersion(component.getDerivedFromGenericType(), component.getDerivedFromGenericVersion(),
+                            component.getModel());
+            if (baseType.isLeft() && baseType.left().value() != null) {
+                addDependencies(imports, dependencies, baseType.left().value(), false);
+            } else {
+                log.debug("Failed to fetch derived from type {}", component.getDerivedFromGenericType());
+            }
+        }
 
         String toscaVersion = null;
         if (component instanceof Resource) {
             toscaVersion = ((Resource) component).getToscaVersion();
         }
         ToscaTemplate toscaTemplate = new ToscaTemplate(toscaVersion != null ? toscaVersion : TOSCA_VERSION);
-        toscaTemplate.setImports(new ArrayList<>(defaultToscaImportConfig));
+        toscaTemplate.setImports(imports);
         final Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
-        final Either<ToscaTemplate, ToscaError> toscaTemplateRes =
-            convertInterfaceNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes, isAssociatedComponent);
+        final Either<ToscaTemplate, ToscaError> toscaTemplateRes = convertInterfaceNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes,
+                isAssociatedComponent);
         if (toscaTemplateRes.isRight()) {
             return Either.right(toscaTemplateRes.right().value());
         }
+        toscaTemplate = toscaTemplateRes.left().value();
+        toscaTemplate.setDependencies(dependencies);
+        ToscaRepresentation toscaRepresentation = this.createToscaRepresentation(toscaTemplate);
+        return Either.left(toscaRepresentation);
+    }
+
+    public Either<ToscaRepresentation, ToscaError> exportComponentInterface(final Component component, final boolean isAssociatedComponent,
+                                                                            final boolean isSkipImports) {
+        final List<Map<String, Map<String, String>>> imports = new ArrayList<>(getDefaultToscaImports(component.getModel(), isSkipImports));
+        if (CollectionUtils.isEmpty(imports)) {
+            log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
+            return Either.right(ToscaError.GENERAL_ERROR);
+        }
+        List<Triple<String, String, Component>> dependencies = new ArrayList<>();
+        if (component.getDerivedFromGenericType() != null && !component.getDerivedFromGenericType()
+            .startsWith("org.openecomp.resource.abstract.nodes.")) {
+            final Either<Component, StorageOperationStatus> baseType = toscaOperationFacade
+                .getByToscaResourceNameAndVersion(component.getDerivedFromGenericType(), component.getDerivedFromGenericVersion(),
+                    component.getModel());
+            if (baseType.isLeft() && baseType.left().value() != null) {
+                addDependencies(imports, dependencies, baseType.left().value(), isSkipImports);
+            } else {
+                log.debug("Failed to fetch derived from type {}", component.getDerivedFromGenericType());
+            }
+        }
 
+        String toscaVersion = null;
+        if (component instanceof Resource) {
+            toscaVersion = ((Resource) component).getToscaVersion();
+        }
+        ToscaTemplate toscaTemplate = new ToscaTemplate(toscaVersion != null ? toscaVersion : TOSCA_VERSION);
+        toscaTemplate.setImports(imports);
+        final Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
+        final Either<ToscaTemplate, ToscaError> toscaTemplateRes = convertInterfaceNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes,
+            isAssociatedComponent);
+        if (toscaTemplateRes.isRight()) {
+            return Either.right(toscaTemplateRes.right().value());
+        }
         toscaTemplate = toscaTemplateRes.left().value();
+        toscaTemplate.setDependencies(dependencies);
         ToscaRepresentation toscaRepresentation = this.createToscaRepresentation(toscaTemplate);
         return Either.left(toscaRepresentation);
     }
 
-    public ToscaRepresentation createToscaRepresentation(ToscaTemplate toscaTemplate) {
+    private ToscaRepresentation createToscaRepresentation(ToscaTemplate toscaTemplate) {
         CustomRepresenter representer = new CustomRepresenter();
         DumperOptions options = new DumperOptions();
         options.setAllowReadOnlyProperties(false);
         options.setPrettyFlow(true);
-
         options.setDefaultFlowStyle(FlowStyle.FLOW);
         options.setCanonical(false);
-
         representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
-
         representer.setPropertyUtils(new UnsortedPropertyUtils());
-        Yaml yaml = new Yaml(representer, options);
 
+        Yaml yaml = new Yaml(representer, options);
         String yamlAsString = yaml.dumpAsMap(toscaTemplate);
-
-        StringBuilder sb = new StringBuilder();
-        sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactHeader());
-        sb.append(yamlAsString);
-        sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactFooter());
-
-        return ToscaRepresentation.make(sb.toString().getBytes(), toscaTemplate);
+        String sb = getConfiguration().getHeatEnvArtifactHeader()
+                + yamlAsString
+                + getConfiguration().getHeatEnvArtifactFooter();
+        return ToscaRepresentation.make(sb.getBytes(), toscaTemplate);
     }
 
     public Either<ToscaTemplate, ToscaError> getDependencies(Component component) {
         ToscaTemplate toscaTemplate = new ToscaTemplate(null);
-        Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports = fillImports(component,
-            toscaTemplate);
+        Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports = fillImports(component, toscaTemplate, false);
+        if (fillImports.isRight()) {
+            return Either.right(fillImports.right().value());
+        }
+        return Either.left(fillImports.left().value().left);
+    }
+
+    public Either<ToscaTemplate, ToscaError> getDependencies(Component component, boolean isSkipImports) {
+        ToscaTemplate toscaTemplate = new ToscaTemplate(null);
+        Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports = fillImports(component, toscaTemplate, isSkipImports);
         if (fillImports.isRight()) {
             return Either.right(fillImports.right().value());
         }
         return Either.left(fillImports.left().value().left);
     }
 
-    public Either<ToscaTemplate, ToscaError> convertToToscaTemplate(final Component component) {
-        final List<Map<String, Map<String, String>>> defaultToscaImportConfig = getDefaultToscaImportConfig();
+    public Either<ToscaTemplate, ToscaError> convertToToscaTemplate(final Component component, final boolean isSkipImports) {
+        final List<Map<String, Map<String, String>>> defaultToscaImportConfig = getDefaultToscaImports(component.getModel(), isSkipImports);
         if (CollectionUtils.isEmpty(defaultToscaImportConfig)) {
             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
             return Either.right(ToscaError.GENERAL_ERROR);
@@ -268,46 +371,94 @@ public class ToscaExportHandler {
             return convertNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes);
         } else {
             log.trace("convert component as topology template");
-            return convertToscaTemplate(component, toscaTemplate);
+            return convertToscaTemplate(component, toscaTemplate, isSkipImports);
         }
+    }
+
+    private Either<ToscaTemplate, ToscaError> convertDataTypeToToscaTemplate(final DataTypeDefinition dataTypeDefinition) {
+        final ToscaTemplate toscaTemplate = new ToscaTemplate(TOSCA_VERSION);
+        return convertDataTypeTosca(dataTypeDefinition, toscaTemplate);
+    }
 
+    private Either<ToscaTemplate, ToscaError> convertDataTypeTosca(final DataTypeDefinition dataTypeDefinition, final ToscaTemplate toscaTemplate) {
+        final var dataTypesEither = applicationDataTypeCache.getAll(dataTypeDefinition.getModel());
+        if (dataTypesEither.isRight()) {
+            log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
+            return Either.right(ToscaError.GENERAL_ERROR);
+        }
+        Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
+        if (!dataTypeDefinition.isEmpty()) {
+            Map<String, ToscaDataType> toscaDataTypeMap = new HashMap<>();
+            ToscaDataType toscaDataType = new ToscaDataType();
+            toscaDataType.setDerived_from(dataTypeDefinition.getDerivedFromName());
+            toscaDataType.setDescription(dataTypeDefinition.getDescription());
+            toscaDataType.setVersion(dataTypeDefinition.getVersion());
+            if (CollectionUtils.isNotEmpty(dataTypeDefinition.getProperties())) {
+                toscaDataType.setProperties(dataTypeDefinition.getProperties().stream()
+                        .collect(Collectors.toMap(
+                                PropertyDataDefinition::getName,
+                                s -> propertyConvertor.convertProperty(dataTypes, s, PropertyType.PROPERTY),
+                                (toscaPropertyTobeValidated, toscaProperty) -> validateToscaProperty((List<DataTypeDefinition>) dataTypeDefinition,
+                                        toscaPropertyTobeValidated,
+                                        toscaProperty)
+                        )));
+            }
+            toscaDataTypeMap.put(dataTypeDefinition.getName(), toscaDataType);
+            toscaTemplate.setData_types(toscaDataTypeMap);
+        }
+        return Either.left(toscaTemplate);
     }
 
-    private Either<ToscaTemplate, ToscaError> convertToscaTemplate(Component component, ToscaTemplate toscaNode) {
+    private List<Map<String, Map<String, String>>> getDefaultToscaImports(final String modelId, final boolean isSkipImports) {
+        if (StringUtils.isEmpty(modelId)) {
+            return getDefaultToscaImportConfig();
+        }
 
-        Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> importsRes = fillImports(component,
-            toscaNode);
+        final List<ToscaImportByModel> allModelImports = modelOperation.findAllModelImports(modelId, true);
+        final List<Map<String, Map<String, String>>> importList = new ArrayList<>();
+        final Set<Path> addedPathList = new HashSet<>();
+        for (final ToscaImportByModel toscaImportByModel : allModelImports) {
+            var importPath = Path.of(toscaImportByModel.getFullPath());
+            if (!(isSkipImports && importPath.toString().equals(ADDITIONAL_TYPE_DEFINITIONS))) {
+                if (addedPathList.contains(importPath)) {
+                    importPath =
+                        ToscaDefaultImportHelper.addModelAsFilePrefix(importPath, toscaImportByModel.getModelId());
+                }
+                final String fileName = FilenameUtils.getBaseName(importPath.toString());
+                importList.add(Map.of(fileName, Map.of("file", importPath.toString())));
+                addedPathList.add(importPath);
+            }
+        }
+        return importList;
+    }
+
+    private Either<ToscaTemplate, ToscaError> convertToscaTemplate(Component component, ToscaTemplate toscaNode, boolean isSkipImports) {
+        Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> importsRes = fillImports(component, toscaNode, isSkipImports);
         if (importsRes.isRight()) {
             return Either.right(importsRes.right().value());
         }
         toscaNode = importsRes.left().value().left;
         Map<String, Component> componentCache = importsRes.left().value().right;
-        Either<Map<String, ToscaNodeType>, ToscaError> nodeTypesMapEither = createProxyNodeTypes(componentCache,
-            component);
+        Either<Map<String, ToscaNodeType>, ToscaError> nodeTypesMapEither = createProxyNodeTypes(componentCache, component);
         if (nodeTypesMapEither.isRight()) {
-            log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
-                nodeTypesMapEither.right().value());
+            log.debug("Failed to fetch normative service proxy resource by tosca name, error {}", nodeTypesMapEither.right().value());
             return Either.right(nodeTypesMapEither.right().value());
         }
         Map<String, ToscaNodeType> nodeTypesMap = nodeTypesMapEither.left().value();
         if (nodeTypesMap != null && !nodeTypesMap.isEmpty()) {
             toscaNode.setNode_types(nodeTypesMap);
         }
-
         createServiceSubstitutionNodeTypes(componentCache, component, toscaNode);
-
         Either<Map<String, Object>, ToscaError> proxyInterfaceTypesEither = createProxyInterfaceTypes(component);
         if (proxyInterfaceTypesEither.isRight()) {
-            log.debug("Failed to populate service proxy local interface types in tosca, error {}",
-                nodeTypesMapEither.right().value());
+            log.debug("Failed to populate service proxy local interface types in tosca, error {}", nodeTypesMapEither.right().value());
             return Either.right(proxyInterfaceTypesEither.right().value());
         }
         Map<String, Object> proxyInterfaceTypes = proxyInterfaceTypesEither.left().value();
         if (MapUtils.isNotEmpty(proxyInterfaceTypes)) {
             toscaNode.setInterface_types(proxyInterfaceTypes);
         }
-
-        Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypesEither = dataTypeCache.getAll();
+        Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypesEither = applicationDataTypeCache.getAll(component.getModel());
         if (dataTypesEither.isRight()) {
             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
             return Either.right(ToscaError.GENERAL_ERROR);
@@ -316,98 +467,135 @@ public class ToscaExportHandler {
         ToscaTopolgyTemplate topologyTemplate = new ToscaTopolgyTemplate();
         List<InputDefinition> inputDef = component.getInputs();
         Map<String, ToscaProperty> inputs = inputConverter.convertInputs(inputDef, dataTypes);
-
         if (!inputs.isEmpty()) {
             topologyTemplate.setInputs(inputs);
         }
-
-        final List<ComponentInstance> componentInstances = component.getComponentInstances();
-        Map<String, List<ComponentInstanceProperty>> componentInstancesProperties =
-            component.getComponentInstancesProperties();
-        Map<String, List<ComponentInstanceInterface>> componentInstanceInterfaces =
-            component.getComponentInstancesInterfaces();
-        if (CollectionUtils.isNotEmpty(componentInstances)) {
+        final Map<String, ToscaProperty> outputs;
+        try {
+            outputs = outputConverter.convert(component.getOutputs(), dataTypes);
+        } catch (final ToscaConversionException e) {
+            log.error(EcompLoggerErrorCode.SCHEMA_ERROR, ToscaExportHandler.class.getName(),
+                    "Could not parse component '{}' outputs. Component unique id '{}'.", component.getName(), component.getUniqueId(), e);
+            return Either.right(ToscaError.GENERAL_ERROR);
+        }
+        if (!outputs.isEmpty()) {
+            topologyTemplate.setOutputs(outputs);
+        }
+        if (CollectionUtils.isNotEmpty(component.getComponentInstances())) {
             final Either<Map<String, ToscaNodeTemplate>, ToscaError> nodeTemplates =
-                convertNodeTemplates(component, componentInstances,
-                    componentInstancesProperties, componentInstanceInterfaces,
-                    componentCache, dataTypes, topologyTemplate);
+                    convertNodeTemplates(component, componentCache, dataTypes, topologyTemplate);
             if (nodeTemplates.isRight()) {
                 return Either.right(nodeTemplates.right().value());
             }
             log.debug("node templates converted");
             topologyTemplate.setNode_templates(nodeTemplates.left().value());
         }
-        final Map<String, ToscaRelationshipTemplate> relationshipTemplatesMap =
-            new ToscaExportRelationshipTemplatesHandler()
+        final Map<String, ToscaRelationshipTemplate> relationshipTemplatesMap = new ToscaExportRelationshipTemplatesHandler()
                 .createFrom(topologyTemplate.getNode_templates());
         if (!relationshipTemplatesMap.isEmpty()) {
             topologyTemplate.setRelationshipTemplates(relationshipTemplatesMap);
         }
-
-        SubstitutionMapping substitutionMapping = new SubstitutionMapping();
-        convertSubstitutionMappingFilter(component, substitutionMapping);
-
         addGroupsToTopologyTemplate(component, topologyTemplate);
-
         try {
             addPoliciesToTopologyTemplate(component, topologyTemplate);
         } catch (SdcResourceNotFoundException e) {
             log.debug("Fail to add policies to topology template:", e);
             return Either.right(ToscaError.GENERAL_ERROR);
         }
+        try {
+            createSubstitutionMapping(component, componentCache).ifPresent(topologyTemplate::setSubstitution_mappings);
+        } catch (final ToscaExportException e) {
+            log.error(EcompLoggerErrorCode.BUSINESS_PROCESS_ERROR, ToscaExportHandler.class.getName(), e.getMessage());
+            return Either.right(e.getToscaError());
+        }
+        if (!topologyTemplate.isEmpty()) {
+            toscaNode.setTopology_template(topologyTemplate);
+        }
+        return Either.left(toscaNode);
+    }
 
-        String toscaResourceName;
+    private Either<String, ToscaError> createComponentToscaName(final Component component) {
         switch (component.getComponentType()) {
             case RESOURCE:
-                toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
-                    .getMetadataDataDefinition()).getToscaResourceName();
-                break;
+                final ResourceMetadataDataDefinition resourceMetadata =
+                        (ResourceMetadataDataDefinition) component.getComponentMetadataDefinition().getMetadataDataDefinition();
+                return Either.left(resourceMetadata.getToscaResourceName());
             case SERVICE:
-                toscaResourceName = SERVICE_NODE_TYPE_PREFIX
-                    + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
-                break;
+                return Either.left(SERVICE_NODE_TYPE_PREFIX + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName());
             default:
                 log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
                 return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
         }
-        substitutionMapping.setNode_type(toscaResourceName);
-        Either<SubstitutionMapping, ToscaError> capabilities = convertCapabilities(component, substitutionMapping,
-            componentCache);
-        if (capabilities.isRight()) {
-            return Either.right(capabilities.right().value());
+    }
+
+    private Optional<SubstitutionMapping> createSubstitutionMapping(final Component component,
+                                                                    final Map<String, Component> componentCache) throws ToscaExportException {
+        if (component instanceof Service && !((Service) component).isSubstituteCandidate()) {
+            return Optional.empty();
+        }
+
+        final Either<String, ToscaError> toscaResourceNameEither = createComponentToscaName(component);
+        if (toscaResourceNameEither.isRight()) {
+            throw new ToscaExportException("Could not create component TOSCA name", toscaResourceNameEither.right().value());
+        }
+        final String toscaResourceName = toscaResourceNameEither.left().value();
+
+        final SubstitutionMapping substitutionMapping = new SubstitutionMapping();
+        if (doNotExtendBaseType(component)) {
+            substitutionMapping.setNode_type(component.getDerivedFromGenericType());
+        } else {
+            substitutionMapping.setNode_type(toscaResourceName);
         }
-        substitutionMapping = capabilities.left().value();
+        convertSubstitutionMappingFilter(component).ifPresent(substitutionMapping::setSubstitution_filter);
 
-        Either<SubstitutionMapping, ToscaError> requirements = capabilityRequirementConverter
-            .convertSubstitutionMappingRequirements(componentCache, component, substitutionMapping);
+        final Either<Map<String, String[]>, ToscaError> capabilitiesEither = convertSubstitutionMappingCapabilities(component, componentCache);
+        if (capabilitiesEither.isRight()) {
+            throw new ToscaExportException("Could not convert substitution mapping capabilities", capabilitiesEither.right().value());
+        }
+        final Map<String, String[]> capabilityMap = capabilitiesEither.left().value();
+        if (!capabilityMap.isEmpty()) {
+            substitutionMapping.setCapabilities(capabilityMap);
+        }
+        final Either<Map<String, String[]>, ToscaError> requirements =
+                capabilityRequirementConverter.convertSubstitutionMappingRequirements(component, componentCache);
         if (requirements.isRight()) {
-            return Either.right(requirements.right().value());
+            throw new ToscaExportException("Could not convert substitution mapping requirements", requirements.right().value());
+        }
+        final Map<String, String[]> requirementMap = requirements.left().value();
+        if (MapUtils.isNotEmpty(requirementMap)) {
+            substitutionMapping.setRequirements(requirementMap);
         }
-        substitutionMapping = requirements.left().value();
+
         final Map<String, String[]> propertyMappingMap = buildSubstitutionMappingPropertyMapping(component);
-        if (!propertyMappingMap.isEmpty()) {
+        if (MapUtils.isNotEmpty(propertyMappingMap)) {
             substitutionMapping.setProperties(propertyMappingMap);
         }
 
         final Map<String, String[]> attributesMappingMap = buildSubstitutionMappingAttributesMapping(component);
-        if (!attributesMappingMap.isEmpty()) {
+        if (MapUtils.isNotEmpty(attributesMappingMap)) {
             substitutionMapping.setAttributes(attributesMappingMap);
         }
 
-        topologyTemplate.setSubstitution_mappings(substitutionMapping);
-
-        toscaNode.setTopology_template(topologyTemplate);
+        return Optional.of(substitutionMapping);
+    }
 
-        return Either.left(toscaNode);
+    private boolean doNotExtendBaseType(final Component component) {
+        final Map<String, CategoryBaseTypeConfig> serviceNodeTypesConfig = ConfigurationManager.getConfigurationManager().getConfiguration()
+                .getServiceBaseNodeTypes();
+        List<CategoryDefinition> categories = component.getCategories();
+        if (CollectionUtils.isNotEmpty(categories) && MapUtils.isNotEmpty(serviceNodeTypesConfig)
+                && serviceNodeTypesConfig.get(categories.get(0).getName()) != null) {
+            return serviceNodeTypesConfig.get(categories.get(0).getName()).isDoNotExtendBaseType();
+        }
+        return false;
     }
 
-    private void convertSubstitutionMappingFilter(final Component component,
-                                                  final SubstitutionMapping substitutionMapping) {
-        if (component.getSubstitutionFilter() != null
-            && (component.getSubstitutionFilter().getProperties()).getListToscaDataDefinition() != null) {
-            substitutionMapping
-                .setSubstitution_filter(convertToSubstitutionFilterComponent(component.getSubstitutionFilter()));
+    private Optional<NodeFilter> convertSubstitutionMappingFilter(final Component component) {
+        if (component.getSubstitutionFilter() == null || (component.getSubstitutionFilter().getProperties()).getListToscaDataDefinition() == null) {
+            return Optional.empty();
         }
+
+        return Optional.ofNullable(convertToSubstitutionFilterComponent(component.getSubstitutionFilter()));
     }
 
     private void addGroupsToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate) {
@@ -417,134 +605,118 @@ public class ToscaExportHandler {
         }
     }
 
-    private void addPoliciesToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate)
-        throws SdcResourceNotFoundException {
+    private void addPoliciesToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate) throws SdcResourceNotFoundException {
         Map<String, ToscaPolicyTemplate> policies = policyExportParser.getPolicies(component);
         if (policies != null) {
             topologyTemplate.addPolicies(policies);
         }
     }
 
-    private Map<String, String> convertMetadata(Component component) {
+    private Map<String, Object> convertMetadata(Component component) {
         return convertMetadata(component, false, null);
     }
 
-    private Map<String, String> convertMetadata(Component component, boolean isInstance,
-                                          ComponentInstance componentInstance) {
-        Map<String, String> toscaMetadata = new LinkedHashMap<>();
-        toscaMetadata.put(JsonPresentationFields.INVARIANT_UUID.getPresentation(), component.getInvariantUUID());
+    private Map<String, Object> convertMetadata(Component component, boolean isInstance, ComponentInstance componentInstance) {
+        Map<String, Object> toscaMetadata = new LinkedHashMap<>();
+        toscaMetadata.put(convertMetadataKey(JsonPresentationFields.INVARIANT_UUID), component.getInvariantUUID());
         toscaMetadata.put(JsonPresentationFields.UUID.getPresentation(), component.getUUID());
-        toscaMetadata.put(JsonPresentationFields.NAME.getPresentation(), component.getComponentMetadataDefinition().getMetadataDataDefinition().getName());
+        toscaMetadata
+                .put(JsonPresentationFields.NAME.getPresentation(), component.getComponentMetadataDefinition().getMetadataDataDefinition().getName());
         toscaMetadata.put(JsonPresentationFields.DESCRIPTION.getPresentation(), component.getDescription());
-
         List<CategoryDefinition> categories = component.getCategories();
         CategoryDefinition categoryDefinition = categories.get(0);
+        toscaMetadata.put(JsonPresentationFields.MODEL.getPresentation(), component.getModel());
         toscaMetadata.put(JsonPresentationFields.CATEGORY.getPresentation(), categoryDefinition.getName());
-
         if (isInstance) {
-            toscaMetadata.put(JsonPresentationFields.VERSION.getPresentation(),component.getVersion());
+            toscaMetadata.put(JsonPresentationFields.VERSION.getPresentation(), component.getVersion());
             toscaMetadata.put(JsonPresentationFields.CUSTOMIZATION_UUID.getPresentation(), componentInstance.getCustomizationUUID());
-            if (componentInstance.getSourceModelInvariant() != null
-                && !componentInstance.getSourceModelInvariant().isEmpty()) {
-                toscaMetadata.put(JsonPresentationFields.VERSION.getPresentation(),componentInstance.getComponentVersion());
-                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_INVARIANT.getPresentation(),componentInstance.getSourceModelInvariant());
-                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_UUID.getPresentation(),componentInstance.getSourceModelUuid());
-                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_NAME.getPresentation(),componentInstance.getSourceModelName());
+            if (componentInstance.getSourceModelInvariant() != null && !componentInstance.getSourceModelInvariant().isEmpty()) {
+                toscaMetadata.put(JsonPresentationFields.VERSION.getPresentation(), componentInstance.getComponentVersion());
+                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_INVARIANT.getPresentation(), componentInstance.getSourceModelInvariant());
+                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_UUID.getPresentation(), componentInstance.getSourceModelUuid());
+                toscaMetadata.put(JsonPresentationFields.CI_SOURCE_MODEL_NAME.getPresentation(), componentInstance.getSourceModelName());
                 if (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy) {
                     toscaMetadata.put(JsonPresentationFields.NAME.getPresentation(),
-                        componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceProxy.getDisplayValue());
+                            componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceProxy.getDisplayValue());
                 } else if (componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution) {
                     toscaMetadata.put(JsonPresentationFields.NAME.getPresentation(),
-                        componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceSubstitution
-                            .getDisplayValue());
+                            componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceSubstitution.getDisplayValue());
                 }
-                toscaMetadata.put(JsonPresentationFields.DESCRIPTION.getPresentation(),componentInstance.getDescription());
+                toscaMetadata.put(JsonPresentationFields.DESCRIPTION.getPresentation(), componentInstance.getDescription());
             }
-
         }
         switch (component.getComponentType()) {
             case RESOURCE:
                 Resource resource = (Resource) component;
-
-            if (isInstance && (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy || componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution)) {
+                if (isInstance && (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy
+                        || componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution)) {
                     toscaMetadata.put(JsonPresentationFields.TYPE.getPresentation(), componentInstance.getOriginType().getDisplayValue());
                 } else {
                     toscaMetadata.put(JsonPresentationFields.TYPE.getPresentation(), resource.getResourceType().name());
                 }
                 toscaMetadata.put(JsonPresentationFields.SUB_CATEGORY.getPresentation(), categoryDefinition.getSubcategories().get(0).getName());
                 toscaMetadata.put(JsonPresentationFields.RESOURCE_VENDOR.getPresentation(), resource.getVendorName());
-                toscaMetadata.put(JsonPresentationFields.RESOURCE_VENDOR_RELEASE.getPresentation(),resource.getVendorRelease());
-                toscaMetadata.put(JsonPresentationFields.RESOURCE_VENDOR_MODEL_NUMBER.getPresentation(),resource.getResourceVendorModelNumber());
+                if (resource.getTenant() != null) {
+                    toscaMetadata.put(JsonPresentationFields.TENANT.getPresentation(), resource.getTenant());
+                }
+                toscaMetadata.put(JsonPresentationFields.RESOURCE_VENDOR_RELEASE.getPresentation(), resource.getVendorRelease());
+                toscaMetadata.put(JsonPresentationFields.RESOURCE_VENDOR_MODEL_NUMBER.getPresentation(), resource.getResourceVendorModelNumber());
+                toscaMetadata.put(resource.isTopologyTemplate() ? JsonPresentationFields.TEMPLATE_VERSION.getPresentation() : JsonPresentationFields.VERSION.getPresentation(), resource.getVersion());
                 break;
             case SERVICE:
                 Service service = (Service) component;
-                toscaMetadata.put(JsonPresentationFields.TYPE.getPresentation(),component.getComponentType().getValue());
-                toscaMetadata.put(JsonPresentationFields.SERVICE_TYPE.getPresentation(),service.getServiceType());
-                toscaMetadata.put(JsonPresentationFields.SERVICE_ROLE.getPresentation(),service.getServiceRole());
-                toscaMetadata.put(JsonPresentationFields.SERVICE_FUNCTION.getPresentation(),service.getServiceFunction());
-                toscaMetadata.put(JsonPresentationFields.ENVIRONMENT_CONTEXT.getPresentation(),service.getEnvironmentContext());
-                toscaMetadata.put(JsonPresentationFields.INSTANTIATION_TYPE.getPresentation(),service.getEnvironmentContext() == null ? StringUtils.EMPTY : service.getInstantiationType());
+                toscaMetadata.put(JsonPresentationFields.TYPE.getPresentation(), component.getComponentType().getValue());
+                toscaMetadata.put(JsonPresentationFields.SERVICE_TYPE.getPresentation(), service.getServiceType());
+                toscaMetadata.put(JsonPresentationFields.SERVICE_ROLE.getPresentation(), service.getServiceRole());
+                toscaMetadata.put(JsonPresentationFields.SERVICE_FUNCTION.getPresentation(), service.getServiceFunction());
+                toscaMetadata.put(JsonPresentationFields.ENVIRONMENT_CONTEXT.getPresentation(), service.getEnvironmentContext());
+                toscaMetadata.put(JsonPresentationFields.TEMPLATE_VERSION.getPresentation(), service.getVersion());
+                toscaMetadata.put(JsonPresentationFields.INSTANTIATION_TYPE.getPresentation(),
+                        service.getEnvironmentContext() == null ? StringUtils.EMPTY : service.getInstantiationType());
                 if (!isInstance) {
-                    // DE268546
-                    toscaMetadata.put(JsonPresentationFields.ECOMP_GENERATED_NAMING.getPresentation(),service.isEcompGeneratedNaming().toString());
-                    toscaMetadata.put(JsonPresentationFields.ECOMP_GENERATED_NAMING.getPresentation(),service.isEcompGeneratedNaming().toString());
-                    toscaMetadata.put(JsonPresentationFields.NAMING_POLICY.getPresentation(),service.getNamingPolicy());
+                    toscaMetadata.put(JsonPresentationFields.ECOMP_GENERATED_NAMING.getPresentation(), service.isEcompGeneratedNaming().toString());
+                    toscaMetadata.put(JsonPresentationFields.NAMING_POLICY.getPresentation(), service.getNamingPolicy());
                 }
                 break;
             default:
                 log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
         }
-
-        for (final String key: component.getCategorySpecificMetadata().keySet()) {
-            toscaMetadata.put(key, component.getCategorySpecificMetadata().get(key));
+        for (final String key : component.getCategorySpecificMetadata().keySet()) {
+            if (!EXCLUDED_CATEGORY_SPECIFIC_METADATA.contains(key)) {
+                toscaMetadata.put(key, component.getCategorySpecificMetadata().get(key));
+            }
         }
         return toscaMetadata;
     }
 
-    private void resolveInstantiationTypeAndSetItToToscaMetaData(ToscaMetadata toscaMetadata, Service service) {
-        if (service.getInstantiationType() != null) {
-            toscaMetadata.setInstantiationType(service.getInstantiationType());
-        } else {
-            toscaMetadata.setInstantiationType(StringUtils.EMPTY);
+    private String convertMetadataKey(JsonPresentationFields jsonPresentationField) {
+        if (JsonPresentationFields.INVARIANT_UUID.equals(jsonPresentationField)) {
+            return INVARIANT_UUID;
         }
+        return jsonPresentationField.getPresentation();
     }
 
-    private Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports(Component component,
-                                                                                                 ToscaTemplate toscaTemplate) {
-
-        final List<Map<String, Map<String, String>>> defaultToscaImportConfig = getDefaultToscaImportConfig();
+    private Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports(Component component, ToscaTemplate toscaTemplate, boolean isSkipImports) {
+        final List<Map<String, Map<String, String>>> defaultToscaImportConfig = getDefaultToscaImports(component.getModel(), isSkipImports);
         if (CollectionUtils.isEmpty(defaultToscaImportConfig)) {
             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
             return Either.right(ToscaError.GENERAL_ERROR);
         }
         Map<String, Component> componentCache = new HashMap<>();
-
         if (!ModelConverter.isAtomicComponent(component)) {
             final List<Map<String, Map<String, String>>> additionalImports =
-                toscaTemplate.getImports() == null ? new ArrayList<>(defaultToscaImportConfig)
-                    : new ArrayList<>(toscaTemplate.getImports());
-
-            List<Triple<String, String, Component>> dependecies = new ArrayList<>();
-
+                    toscaTemplate.getImports() == null ? new ArrayList<>(defaultToscaImportConfig) : new ArrayList<>(toscaTemplate.getImports());
+            List<Triple<String, String, Component>> dependencies = new ArrayList<>();
             Map<String, ArtifactDefinition> toscaArtifacts = component.getToscaArtifacts();
-            if (isNotEmpty(toscaArtifacts)) {
-                ArtifactDefinition artifactDefinition = toscaArtifacts.get(ToscaExportHandler.ASSET_TOSCA_TEMPLATE);
-                if (artifactDefinition != null) {
-                    Map<String, Map<String, String>> importsListMember = new HashMap<>();
-                    Map<String, String> interfaceFiles = new HashMap<>();
-                    interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactDefinition.getArtifactName()));
-                    StringBuilder keyNameBuilder = new StringBuilder();
-                    keyNameBuilder.append(component.getComponentType().toString().toLowerCase()).append("-")
-                        .append(component.getName()).append("-interface");
-                    importsListMember.put(keyNameBuilder.toString(), interfaceFiles);
-                    additionalImports.add(importsListMember);
-                }
+            final Map<String, Map<String, String>> substituteTypeImportEntry = generateComponentSubstituteTypeImport(component, toscaArtifacts);
+            if (!substituteTypeImportEntry.isEmpty()) {
+                additionalImports.add(substituteTypeImportEntry);
             }
             List<ComponentInstance> componentInstances = component.getComponentInstances();
             if (componentInstances != null && !componentInstances.isEmpty()) {
-                componentInstances.forEach(ci -> createDependency(componentCache, additionalImports, dependecies, ci));
+                componentInstances.forEach(ci -> createDependency(componentCache, additionalImports, dependencies, ci, isSkipImports));
             }
-            toscaTemplate.setDependencies(dependecies);
+            toscaTemplate.setDependencies(dependencies);
             toscaTemplate.setImports(additionalImports);
         } else {
             log.debug("currently imports supported for VF and service only");
@@ -552,45 +724,63 @@ public class ToscaExportHandler {
         return Either.left(new ImmutablePair<>(toscaTemplate, componentCache));
     }
 
+    private Map<String, Map<String, String>> generateComponentSubstituteTypeImport(final Component component,
+                                                                                   final Map<String, ArtifactDefinition> toscaArtifacts) {
+        if (doNotExtendBaseType(component)) {
+            return Collections.emptyMap();
+        }
+        if (component instanceof Service && !((Service) component).isSubstituteCandidate()) {
+            return Collections.emptyMap();
+        }
+        if (MapUtils.isEmpty(toscaArtifacts)) {
+            return Collections.emptyMap();
+        }
+        final ArtifactDefinition artifactDefinition = toscaArtifacts.get(ASSET_TOSCA_TEMPLATE);
+        if (artifactDefinition == null) {
+            return Collections.emptyMap();
+        }
+        final var importEntryName = component.getComponentType().toString().toLowerCase() + "-" + component.getName() + "-interface";
+        return Map.of(importEntryName,
+                Map.of(IMPORTS_FILE_KEY, getInterfaceFilename(artifactDefinition.getArtifactName()))
+        );
+    }
+
     private List<Map<String, Map<String, String>>> getDefaultToscaImportConfig() {
-        return ConfigurationManager.getConfigurationManager().getConfiguration().getDefaultImports();
+        return getConfiguration().getDefaultImports();
     }
 
-    private void createDependency(final Map<String, Component> componentCache,
-                                  final List<Map<String, Map<String, String>>> imports,
-                                  final List<Triple<String, String, Component>> dependencies,
-                                  final ComponentInstance componentInstance) {
+    private void createDependency(final Map<String, Component> componentCache, final List<Map<String, Map<String, String>>> imports,
+                                  final List<Triple<String, String, Component>> dependencies, final ComponentInstance componentInstance,
+                                  final boolean isSkipImports) {
         log.debug("createDependency componentCache {}", componentCache);
         Component componentRI = componentCache.get(componentInstance.getComponentUid());
         if (componentRI == null || componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution) {
             // all resource must be only once!
-            final Either<Component, StorageOperationStatus> resource = toscaOperationFacade
-                .getToscaFullElement(componentInstance.getComponentUid());
+            final Either<Component, StorageOperationStatus> resource = toscaOperationFacade.getToscaFullElement(componentInstance.getComponentUid());
             if ((resource.isRight()) && (log.isDebugEnabled())) {
                 log.debug("Failed to fetch resource with id {} for instance {}", componentInstance.getComponentUid(),
-                    componentInstance.getUniqueId());
+                        componentInstance.getUniqueId());
                 return;
             }
             final Component fetchedComponent = resource.left().value();
             componentRI = setComponentCache(componentCache, componentInstance, fetchedComponent);
-            addDependencies(imports, dependencies, componentRI);
+            addDependencies(imports, dependencies, componentRI, isSkipImports);
         }
     }
 
     /**
      * Sets a componentCache from the given component/resource.
      */
-    private Component setComponentCache(final Map<String, Component> componentCache,
-                                   final ComponentInstance componentInstance,
-                                   final Component fetchedComponent) {
+    private Component setComponentCache(final Map<String, Component> componentCache, final ComponentInstance componentInstance,
+                                        final Component fetchedComponent) {
         componentCache.put(fetchedComponent.getUniqueId(), fetchedComponent);
         if (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy
-            || componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution) {
+                || componentInstance.getOriginType() == OriginTypeEnum.ServiceSubstitution) {
             final Either<Component, StorageOperationStatus> sourceService = toscaOperationFacade
-                .getToscaFullElement(componentInstance.getSourceModelUid());
+                    .getToscaFullElement(componentInstance.getSourceModelUid());
             if (sourceService.isRight() && (log.isDebugEnabled())) {
-                log.debug("Failed to fetch source service with id {} for proxy {}",
-                    componentInstance.getSourceModelUid(), componentInstance.getUniqueId());
+                log.debug("Failed to fetch source service with id {} for proxy {}", componentInstance.getSourceModelUid(),
+                        componentInstance.getUniqueId());
             }
             final Component fetchedSource = sourceService.left().value();
             componentCache.put(fetchedSource.getUniqueId(), fetchedSource);
@@ -602,21 +792,17 @@ public class ToscaExportHandler {
     /**
      * Retrieves all derived_from nodes and stores it in a predictable order.
      */
-    private void addDependencies(final List<Map<String, Map<String, String>>> imports,
-                                 final List<Triple<String, String, Component>> dependencies,
-                                 final Component fetchedComponent) {
+    private void addDependencies(final List<Map<String, Map<String, String>>> imports, final List<Triple<String, String, Component>> dependencies,
+                                 final Component fetchedComponent, final boolean isSkipImports) {
         final Set<Component> componentsList = new LinkedHashSet<>();
-        if (fetchedComponent instanceof Resource) {
+        if (fetchedComponent instanceof Resource && !isSkipImports) {
             log.debug("fetchedComponent is a resource {}", fetchedComponent);
-
-            final Optional<Map<String, String>> derivedFromMapOfIdToName = getDerivedFromMapOfIdToName(fetchedComponent,
-                componentsList);
+            final Optional<Map<String, String>> derivedFromMapOfIdToName = getDerivedFromMapOfIdToName(fetchedComponent, componentsList);
             if (derivedFromMapOfIdToName.isPresent() && !derivedFromMapOfIdToName.get().isEmpty()) {
                 derivedFromMapOfIdToName.get().entrySet().forEach(entry -> {
                     log.debug("Started entry.getValue() : {}", entry.getValue());
                     if (!NATIVE_ROOT.equals(entry.getValue())) {
-                        Either<Resource, StorageOperationStatus> resourcefetched = toscaOperationFacade
-                            .getToscaElement(entry.getKey());
+                        Either<Resource, StorageOperationStatus> resourcefetched = toscaOperationFacade.getToscaElement(entry.getKey());
                         if (resourcefetched != null && resourcefetched.isLeft()) {
                             componentsList.add(resourcefetched.left().value());
                         }
@@ -626,25 +812,22 @@ public class ToscaExportHandler {
             } else {
                 setImports(imports, dependencies, fetchedComponent);
             }
-
         }
     }
 
     /**
      * Returns all derived_from nodes found.
      */
-    private Optional<Map<String, String>> getDerivedFromMapOfIdToName(final Component fetchedComponent,
-                                                                      final Set<Component> componentsList) {
+    private Optional<Map<String, String>> getDerivedFromMapOfIdToName(final Component fetchedComponent, final Set<Component> componentsList) {
         final Resource parentResource = (Resource) fetchedComponent;
         Map<String, String> derivedFromMapOfIdToName = new HashMap<>();
         if (CollectionUtils.isNotEmpty(parentResource.getComponentInstances())) {
             componentsList.add(fetchedComponent);
             for (final ComponentInstance componentInstance : parentResource.getComponentInstances()) {
                 final Either<Resource, StorageOperationStatus> resourcefetched = toscaOperationFacade
-                    .getToscaElement(componentInstance.getComponentUid());
+                        .getToscaElement(componentInstance.getComponentUid());
                 if (resourcefetched != null && resourcefetched.isLeft()) {
-                    final Map<String, String> derivedWithId = resourcefetched.left().value()
-                        .getDerivedFromMapOfIdToName();
+                    final Map<String, String> derivedWithId = resourcefetched.left().value().getDerivedFromMapOfIdToName();
                     if (MapUtils.isNotEmpty(derivedWithId)) {
                         derivedFromMapOfIdToName.putAll(derivedWithId);
                     }
@@ -660,14 +843,12 @@ public class ToscaExportHandler {
     /**
      * Creates a resource map and adds it to the import list.
      */
-    private void setImports(final List<Map<String, Map<String, String>>> imports,
-                            final List<Triple<String, String, Component>> dependencies,
+    private void setImports(final List<Map<String, Map<String, String>>> imports, final List<Triple<String, String, Component>> dependencies,
                             final Set<Component> componentsList) {
-        componentsList.forEach(component -> setImports(imports, dependencies, component));
+        componentsList.forEach(component ->  setImports(imports, dependencies, component));
     }
 
-    private void setImports(final List<Map<String, Map<String, String>>> imports,
-                            final List<Triple<String, String, Component>> dependencies,
+    private void setImports(final List<Map<String, Map<String, String>>> imports, final List<Triple<String, String, Component>> dependencies,
                             final Component component) {
         final Map<String, ArtifactDefinition> toscaArtifacts = component.getToscaArtifacts();
         final ArtifactDefinition artifactDefinition = toscaArtifacts.get(ASSET_TOSCA_TEMPLATE);
@@ -680,9 +861,7 @@ public class ToscaExportHandler {
             keyNameBuilder.append("-");
             keyNameBuilder.append(component.getName());
             addImports(imports, keyNameBuilder, files);
-            dependencies
-                    .add(new ImmutableTriple<String, String, Component>(artifactName, artifactDefinition.getEsId(), component));
-
+            dependencies.add(new ImmutableTriple<>(artifactName, artifactDefinition.getEsId(), component));
             if (!ModelConverter.isAtomicComponent(component)) {
                 final Map<String, String> interfaceFiles = new HashMap<>();
                 interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactName));
@@ -695,8 +874,7 @@ public class ToscaExportHandler {
     /**
      * Adds the found resource to the import definition list.
      */
-    private void addImports(final List<Map<String, Map<String, String>>> imports,
-                            final StringBuilder keyNameBuilder,
+    private void addImports(final List<Map<String, Map<String, String>>> imports, final StringBuilder keyNameBuilder,
                             final Map<String, String> files) {
         final String mapKey = keyNameBuilder.toString();
         if (imports.stream().allMatch(stringMapMap -> stringMapMap.get(mapKey) == null)) {
@@ -706,82 +884,68 @@ public class ToscaExportHandler {
         }
     }
 
-    public static String getInterfaceFilename(String artifactName) {
-        return artifactName.substring(0, artifactName.lastIndexOf('.')) + ToscaExportHandler.TOSCA_INTERFACE_NAME;
-    }
-
-    private Either<ToscaTemplate, ToscaError> convertNodeType(Map<String, Component> componentsCache,
-                                                              Component component, ToscaTemplate toscaNode,
+    private Either<ToscaTemplate, ToscaError> convertNodeType(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
                                                               Map<String, ToscaNodeType> nodeTypes) {
         return convertInterfaceNodeType(componentsCache, component, toscaNode, nodeTypes, false);
     }
 
-    public Either<ToscaTemplate, ToscaError> convertInterfaceNodeType(Map<String, Component> componentsCache,
-                                                                      Component component, ToscaTemplate toscaNode,
-                                                                      Map<String, ToscaNodeType> nodeTypes,
+    public Either<ToscaTemplate, ToscaError> convertInterfaceNodeType(Map<String, Component> componentsCache, Component component,
+                                                                      ToscaTemplate toscaNode, Map<String, ToscaNodeType> nodeTypes,
                                                                       boolean isAssociatedComponent) {
         log.debug("start convert node type for {}", component.getUniqueId());
         ToscaNodeType toscaNodeType = createNodeType(component);
-
-        Either<Map<String, InterfaceDefinition>, StorageOperationStatus> lifecycleTypeEither =
-            interfaceLifecycleOperation.getAllInterfaceLifecycleTypes();
-        if (lifecycleTypeEither.isRight()) {
+        Either<Map<String, InterfaceDefinition>, StorageOperationStatus> lifecycleTypeEither = interfaceLifecycleOperation
+                .getAllInterfaceLifecycleTypes(component.getModel());
+        if (lifecycleTypeEither.isRight() && !StorageOperationStatus.NOT_FOUND.equals(lifecycleTypeEither.right().value())) {
             log.debug("Failed to fetch all interface types :", lifecycleTypeEither.right().value());
             return Either.right(ToscaError.GENERAL_ERROR);
         }
-        List<String> allGlobalInterfaceTypes = lifecycleTypeEither.left().value()
-            .values()
-            .stream()
-            .map(InterfaceDataDefinition::getType)
-            .collect(Collectors.toList());
-        toscaNode.setInterface_types(addInterfaceTypeElement(component, allGlobalInterfaceTypes));
-
-        Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypesEither = dataTypeCache.getAll();
+        if (lifecycleTypeEither.isLeft()) {
+            List<String> allGlobalInterfaceTypes = lifecycleTypeEither.left().value().values().stream().map(InterfaceDataDefinition::getType)
+                    .collect(Collectors.toList());
+            toscaNode.setInterface_types(interfacesOperationsConverter.addInterfaceTypeElement(component, allGlobalInterfaceTypes));
+        }
+        final var dataTypesEither = applicationDataTypeCache.getAll(component.getModel());
         if (dataTypesEither.isRight()) {
             log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
             return Either.right(ToscaError.GENERAL_ERROR);
         }
-
         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
-
-        List<InputDefinition> inputDef = component.getInputs();
-        Map<String, ToscaProperty> mergedProperties = new HashMap<>();
-        interfacesOperationsConverter
-            .addInterfaceDefinitionElement(component, toscaNodeType, dataTypes, isAssociatedComponent);
-        addInputsToProperties(dataTypes, inputDef, mergedProperties);
-
+        interfacesOperationsConverter.addInterfaceDefinitionElement(component, toscaNodeType, dataTypes, isAssociatedComponent);
+        final var toscaAttributeMap = convertToToscaAttributes(component.getAttributes(), dataTypes);
+        if (!toscaAttributeMap.isEmpty()) {
+            toscaNodeType.setAttributes(toscaAttributeMap);
+        }
+        Map<String, ToscaProperty> convertedProperties = new HashMap();
         if (CollectionUtils.isNotEmpty(component.getProperties())) {
             List<PropertyDefinition> properties = component.getProperties();
-            Map<String, ToscaProperty> convertedProperties = properties.stream()
-                .map(propertyDefinition -> resolvePropertyValueFromInput(propertyDefinition, component.getInputs()))
-                .collect(Collectors.toMap(PropertyDataDefinition::getName,
-                    property -> propertyConvertor.convertProperty(dataTypes, property,
-                        PropertyConvertor.PropertyType.PROPERTY)));
-            // merge component properties and inputs properties
-            mergedProperties.putAll(convertedProperties);
+            convertedProperties = properties.stream()
+                    .map(propertyDefinition -> resolvePropertyValueFromInput(propertyDefinition, component.getInputs())).collect(Collectors
+                            .toMap(PropertyDataDefinition::getName,
+                                    property -> propertyConvertor.convertProperty(dataTypes, property, PropertyConvertor.PropertyType.PROPERTY)));
         }
-        if (MapUtils.isNotEmpty(mergedProperties)) {
-            toscaNodeType.setProperties(mergedProperties);
+        if (MapUtils.isNotEmpty(convertedProperties)) {
+            toscaNodeType.setProperties(convertedProperties);
         }
-
         /* convert private data_types */
         List<DataTypeDefinition> privateDataTypes = component.getDataTypes();
         if (CollectionUtils.isNotEmpty(privateDataTypes)) {
             Map<String, ToscaDataType> toscaDataTypeMap = new HashMap<>();
             for (DataTypeDefinition dataType : privateDataTypes) {
                 log.debug("Emitting private data type: component.name={} dataType.name={}",
-                    component.getNormalizedName(), dataType.getName());
+                        component.getNormalizedName(), dataType.getName());
                 ToscaDataType toscaDataType = new ToscaDataType();
                 toscaDataType.setDerived_from(dataType.getDerivedFromName());
                 toscaDataType.setDescription(dataType.getDescription());
                 toscaDataType.setVersion(dataType.getVersion());
                 if (CollectionUtils.isNotEmpty(dataType.getProperties())) {
                     toscaDataType.setProperties(dataType.getProperties().stream()
-                        .collect(Collectors.toMap(
-                            s -> s.getName(),
-                            s -> propertyConvertor
-                                .convertProperty(dataTypes, s, PropertyConvertor.PropertyType.PROPERTY)
-                        )));
+                            .collect(Collectors.toMap(
+                                    PropertyDataDefinition::getName,
+                                    s -> propertyConvertor.convertProperty(dataTypes, s, PropertyType.PROPERTY),
+                                    (toscaPropertyTobeValidated, toscaProperty) -> validateToscaProperty(privateDataTypes, toscaPropertyTobeValidated,
+                                            toscaProperty)
+                            )));
                 }
                 toscaDataTypeMap.put(dataType.getName(), toscaDataType);
             }
@@ -792,13 +956,33 @@ public class ToscaExportHandler {
         return convertReqCapAndTypeName(componentsCache, component, toscaNode, nodeTypes, toscaNodeType, dataTypes);
     }
 
+    private ToscaProperty validateToscaProperty(final List<DataTypeDefinition> privateDataTypes, final ToscaProperty toscaPropertyTobeValidated,
+                                                final ToscaProperty toscaProperty) {
+        final Optional<DataTypeDefinition> match = privateDataTypes.stream()
+                .filter(dataType -> dataType.getName().equals(toscaPropertyTobeValidated.getType())).findFirst();
+        return match.isPresent() ? toscaPropertyTobeValidated : toscaProperty;
+    }
+
+    private Map<String, ToscaAttribute> convertToToscaAttributes(final List<AttributeDefinition> attributeList,
+                                                                 final Map<String, DataTypeDefinition> dataTypes) {
+        if (CollectionUtils.isEmpty(attributeList)) {
+            return Collections.emptyMap();
+        }
+        final AttributeConverter converter = new AttributeConverter(dataTypes);
+        final Map<String, ToscaAttribute> toscaAttributeMap = new HashMap<>();
+        for (final AttributeDefinition attributeDefinition : attributeList) {
+            toscaAttributeMap.put(attributeDefinition.getName(), converter.convert(attributeDefinition));
+        }
+        return toscaAttributeMap;
+    }
+
     private Either<ToscaTemplate, ToscaError> convertReqCapAndTypeName(Map<String, Component> componentsCache,
                                                                        Component component, ToscaTemplate toscaNode,
                                                                        Map<String, ToscaNodeType> nodeTypes,
                                                                        ToscaNodeType toscaNodeType,
                                                                        Map<String, DataTypeDefinition> dataTypes) {
         Either<ToscaNodeType, ToscaError> capabilities = convertCapabilities(componentsCache, component, toscaNodeType,
-            dataTypes);
+                dataTypes);
         if (capabilities.isRight()) {
             return Either.right(capabilities.right().value());
         }
@@ -806,8 +990,7 @@ public class ToscaExportHandler {
         log.debug("Capabilities converted for {}", component.getUniqueId());
 
         Either<ToscaNodeType, ToscaError> requirements = capabilityRequirementConverter
-            .convertRequirements(componentsCache, component,
-                toscaNodeType);
+                .convertRequirements(componentsCache, component, toscaNodeType);
         if (requirements.isRight()) {
             return Either.right(requirements.right().value());
         }
@@ -818,11 +1001,11 @@ public class ToscaExportHandler {
         switch (component.getComponentType()) {
             case RESOURCE:
                 toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
-                    .getMetadataDataDefinition()).getToscaResourceName();
+                        .getMetadataDataDefinition()).getToscaResourceName();
                 break;
             case SERVICE:
                 toscaResourceName = SERVICE_NODE_TYPE_PREFIX
-                    + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
+                        + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
                 break;
             default:
                 log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
@@ -835,59 +1018,75 @@ public class ToscaExportHandler {
         return Either.left(toscaNode);
     }
 
-    protected Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplates(
-        Component component,
-        List<ComponentInstance> componentInstances,
-        Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
-        Map<String, List<ComponentInstanceInterface>> componentInstanceInterfaces,
-        Map<String, Component> componentCache, Map<String, DataTypeDefinition> dataTypes,
-        ToscaTopolgyTemplate topologyTemplate) {
+    private Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplates(final Component component,
+                                                                                    final Map<String, Component> componentCache,
+                                                                                    final Map<String, DataTypeDefinition> dataTypes,
+                                                                                    final ToscaTopolgyTemplate topologyTemplate) {
+
+        final Map<String, List<ComponentInstanceProperty>> componentInstancesProperties = component.getComponentInstancesProperties();
+        final Map<String, List<ComponentInstanceAttribute>> componentInstancesAttributes = component.getComponentInstancesAttributes();
+        final Map<String, List<ComponentInstanceInput>> componentInstancesInputs = component.getComponentInstancesInputs();
+        final Map<String, List<ComponentInstanceInterface>> componentInstanceInterfaces = component.getComponentInstancesInterfaces();
+        final List<RequirementCapabilityRelDef> componentInstancesRelations = component.getComponentInstancesRelations();
 
         Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplatesRes = null;
-        log.debug("start convert topology template for {} for type {}", component.getUniqueId(),
-            component.getComponentType());
-        Map<String, ToscaNodeTemplate> nodeTemplates = new HashMap<>();
-        Map<String, List<ComponentInstanceInput>> componentInstancesInputs = component.getComponentInstancesInputs();
+        log.debug("start convert topology template for {} for type {}", component.getUniqueId(), component.getComponentType());
+        final Map<String, ToscaNodeTemplate> nodeTemplates = new HashMap<>();
 
         Map<String, ToscaGroupTemplate> groupsMap = null;
-        for (ComponentInstance componentInstance : componentInstances) {
+        for (final ComponentInstance componentInstance : component.getComponentInstances()) {
             ToscaNodeTemplate nodeTemplate = new ToscaNodeTemplate();
             if (MapUtils.isNotEmpty(componentInstance.getToscaArtifacts())) {
                 nodeTemplate.setArtifacts(convertToNodeTemplateArtifacts(componentInstance.getToscaArtifacts()));
             }
+            if (componentInstance.getMinOccurrences() != null && componentInstance.getMaxOccurrences() != null) {
+                List<Object> occur = new ArrayList<>();
+                occur.add(parseToIntIfPossible(componentInstance.getMinOccurrences()));
+                occur.add(parseToIntIfPossible(componentInstance.getMaxOccurrences()));
+                nodeTemplate.setOccurrences(occur);
+            }
+            if (componentInstance.getInstanceCount() != null) {
+                ObjectMapper objectMapper = new ObjectMapper();
+                Object obj = convertToToscaObject(componentInstance.getInstanceCount());
+                if (obj != null) {
+                    Map<String, String> map = objectMapper.convertValue(obj, Map.class);
+                    nodeTemplate.setInstance_count(map);
+                }
+            }
             nodeTemplate.setType(componentInstance.getToscaComponentName());
             nodeTemplate.setDirectives(componentInstance.getDirectives());
-            nodeTemplate.setNode_filter(convertToNodeTemplateNodeFilterComponent(componentInstance.getNodeFilter()));
-
-            Either<Component, Boolean> originComponentRes = capabilityRequirementConverter
-                .getOriginComponent(componentCache, componentInstance);
+            NodeFilter nodeFilter = convertToNodeTemplateNodeFilterComponent(componentInstance.getNodeFilter());
+            if (nodeFilter != null && nodeFilter.hasData()) {
+                nodeTemplate.setNode_filter(nodeFilter);
+            }
+            final Either<Component, Boolean> originComponentRes = capabilityRequirementConverter
+                    .getOriginComponent(componentCache, componentInstance);
             if (originComponentRes.isRight()) {
                 convertNodeTemplatesRes = Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
                 break;
             }
-            Either<ToscaNodeTemplate, ToscaError> requirements = convertComponentInstanceRequirements(component,
-                componentInstance, component.getComponentInstancesRelations(), nodeTemplate,
-                originComponentRes.left().value(), componentCache);
+            final Either<ToscaNodeTemplate, ToscaError> requirements = convertComponentInstanceRequirements(component, componentInstance,
+                    componentInstancesRelations, nodeTemplate, originComponentRes.left().value(), componentCache);
             if (requirements.isRight()) {
                 convertNodeTemplatesRes = Either.right(requirements.right().value());
                 break;
             }
-            String instanceUniqueId = componentInstance.getUniqueId();
+            final String instanceUniqueId = componentInstance.getUniqueId();
             log.debug("Component instance Requirements converted for instance {}", instanceUniqueId);
 
             nodeTemplate = requirements.left().value();
 
-            Component originalComponent = componentCache.get(componentInstance.getActualComponentUid());
+            final Component originalComponent = componentCache.get(componentInstance.getActualComponentUid());
 
             if (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy) {
-                Component componentOfProxy = componentCache.get(componentInstance.getComponentUid());
+                final Component componentOfProxy = componentCache.get(componentInstance.getComponentUid());
                 nodeTemplate.setMetadata(convertMetadata(componentOfProxy, true, componentInstance));
             } else {
                 nodeTemplate.setMetadata(convertMetadata(originalComponent, true, componentInstance));
             }
 
-            Either<ToscaNodeTemplate, ToscaError> capabilities = capabilityRequirementConverter
-                .convertComponentInstanceCapabilities(componentInstance, dataTypes, nodeTemplate);
+            final Either<ToscaNodeTemplate, ToscaError> capabilities =
+                    capabilityRequirementConverter.convertComponentInstanceCapabilities(componentInstance, dataTypes, nodeTemplate);
             if (capabilities.isRight()) {
                 convertNodeTemplatesRes = Either.right(capabilities.right().value());
                 break;
@@ -895,50 +1094,47 @@ public class ToscaExportHandler {
             log.debug("Component instance Capabilities converted for instance {}", instanceUniqueId);
 
             nodeTemplate = capabilities.left().value();
-            Map<String, Object> props = new HashMap<>();
+            final Map<String, Object> props = new HashMap<>();
+            final Map<String, Object> attribs = new HashMap<>();
 
             if (originalComponent.getComponentType() == ComponentTypeEnum.RESOURCE) {
                 // Adds the properties of parent component to map
                 addPropertiesOfParentComponent(dataTypes, originalComponent, props);
+                addAttributesOfParentComponent(originalComponent, attribs);
             }
 
             if (null != componentInstancesProperties && componentInstancesProperties.containsKey(instanceUniqueId)) {
-                addPropertiesOfComponentInstance(componentInstancesProperties, dataTypes, instanceUniqueId,
-                    props);
+                addPropertiesOfComponentInstance(componentInstancesProperties, dataTypes, instanceUniqueId, props);
+            }
+            if (null != componentInstancesAttributes && componentInstancesAttributes.containsKey(instanceUniqueId)) {
+                addAttributesOfComponentInstance(componentInstancesAttributes, instanceUniqueId, attribs);
             }
 
-            if (componentInstancesInputs != null && componentInstancesInputs.containsKey(instanceUniqueId)
-                && !isComponentOfTypeServiceProxy(componentInstance)) {
+            if (componentInstancesInputs != null
+                    && componentInstancesInputs.containsKey(instanceUniqueId)
+                    && !isComponentOfTypeServiceProxy(componentInstance)) {
                 //For service proxy the inputs are already handled under instance properties above
-                addComponentInstanceInputs(dataTypes, componentInstancesInputs, instanceUniqueId,
-                    props);
+                addComponentInstanceInputs(dataTypes, componentInstancesInputs, instanceUniqueId, props);
             }
 
             //M3[00001] - NODE TEMPLATE INTERFACES  - START
-            handleInstanceInterfaces(componentInstanceInterfaces, componentInstance, dataTypes, nodeTemplate,
-                instanceUniqueId, component);
+            handleInstanceInterfaces(componentInstanceInterfaces, componentInstance, dataTypes, nodeTemplate, instanceUniqueId, component);
             //M3[00001] - NODE TEMPLATE INTERFACES  - END
-            if (props != null && !props.isEmpty()) {
+            if (MapUtils.isNotEmpty(props)) {
                 nodeTemplate.setProperties(props);
             }
+            if (MapUtils.isNotEmpty(attribs)) {
+                nodeTemplate.setAttributes(attribs);
+            }
 
-            List<GroupInstance> groupInstances = componentInstance.getGroupInstances();
-            if (groupInstances != null) {
+            final List<GroupInstance> groupInstances = componentInstance.getGroupInstances();
+            if (CollectionUtils.isNotEmpty(groupInstances)) {
                 if (groupsMap == null) {
                     groupsMap = new HashMap<>();
                 }
-                for (GroupInstance groupInst : groupInstances) {
-                    boolean addToTosca = true;
-
-                    List<String> artifacts = groupInst.getArtifacts();
-                    if (artifacts == null || artifacts.isEmpty()) {
-                        addToTosca = false;
-                    }
-
-                    if (addToTosca) {
-                        ToscaGroupTemplate toscaGroup = groupExportParser
-                            .getToscaGroupTemplate(groupInst, componentInstance.getInvariantName());
-                        groupsMap.put(groupInst.getName(), toscaGroup);
+                for (final GroupInstance groupInst : groupInstances) {
+                    if (CollectionUtils.isNotEmpty(groupInst.getArtifacts())) {
+                        groupsMap.put(groupInst.getName(), groupExportParser.getToscaGroupTemplate(groupInst, componentInstance.getInvariantName()));
                     }
                 }
             }
@@ -950,44 +1146,60 @@ public class ToscaExportHandler {
             topologyTemplate.addGroups(groupsMap);
         }
         if (component.getComponentType() == ComponentTypeEnum.SERVICE && isNotEmpty(
-            ((Service) component).getForwardingPaths())) {
-            log.debug("Starting converting paths for component {}, name {}", component.getUniqueId(),
-                component.getName());
+                ((Service) component).getForwardingPaths())) {
+            log.debug("Starting converting paths for component {}, name {}", component.getUniqueId(), component.getName());
             ForwardingPathToscaUtil
-                .addForwardingPaths((Service) component, nodeTemplates, capabilityRequirementConverter, componentCache,
-                    toscaOperationFacade);
-            log.debug("Finished converting paths for component {}, name {}", component.getUniqueId(),
-                component.getName());
+                    .addForwardingPaths((Service) component, nodeTemplates, capabilityRequirementConverter, componentCache, toscaOperationFacade);
+            log.debug("Finished converting paths for component {}, name {}", component.getUniqueId(), component.getName());
         }
         if (convertNodeTemplatesRes == null) {
             convertNodeTemplatesRes = Either.left(nodeTemplates);
         }
-        log.debug("finish convert topology template for {} for type {}", component.getUniqueId(),
-            component.getComponentType());
+        log.debug("finish convert topology template for {} for type {}", component.getUniqueId(), component.getComponentType());
         return convertNodeTemplatesRes;
     }
 
-    private void handleInstanceInterfaces(
-        Map<String, List<ComponentInstanceInterface>> componentInstanceInterfaces,
-        ComponentInstance componentInstance, Map<String, DataTypeDefinition> dataTypes, ToscaNodeTemplate nodeTemplate,
-        String instanceUniqueId,
-        Component parentComponent) {
+    private Object convertToToscaObject(String value) {
+        try {
+            ToscaMapValueConverter mapConverterInst = ToscaMapValueConverter.getInstance();
+            StringReader reader = new StringReader(value);
+            JsonReader jsonReader = new JsonReader(reader);
+            jsonReader.setLenient(true);
+            JsonElement jsonElement = JsonParser.parseReader(jsonReader);
+            if (jsonElement.isJsonObject()) {
+                JsonObject jsonObj = jsonElement.getAsJsonObject();
+                if (jsonObj.entrySet().size() == 1 && jsonObj.has(ToscaFunctions.GET_INPUT.getFunctionName())) {
+                    return mapConverterInst.handleComplexJsonValue(jsonElement);
+                }
+            }
+            return null;
+        } catch (Exception e) {
+            log.debug("convertToToscaValue failed to parse json value :", e);
+            return null;
+        }
+    }
+
+    private Object parseToIntIfPossible(final String value) {
+        final Integer intValue = Ints.tryParse(value);
+        return intValue == null ? value : intValue;
+    }
+
+    private void handleInstanceInterfaces(Map<String, List<ComponentInstanceInterface>> componentInstanceInterfaces,
+                                          ComponentInstance componentInstance, Map<String, DataTypeDefinition> dataTypes,
+                                          ToscaNodeTemplate nodeTemplate, String instanceUniqueId, Component parentComponent) {
 
-        if (MapUtils.isEmpty(componentInstanceInterfaces)
-            || !componentInstanceInterfaces.containsKey(instanceUniqueId)) {
+        if (MapUtils.isEmpty(componentInstanceInterfaces) || !componentInstanceInterfaces.containsKey(instanceUniqueId)) {
             nodeTemplate.setInterfaces(null);
             return;
         }
 
-        final List<ComponentInstanceInterface> currServiceInterfaces =
-            componentInstanceInterfaces.get(instanceUniqueId);
+        final List<ComponentInstanceInterface> currServiceInterfaces = componentInstanceInterfaces.get(instanceUniqueId);
 
         final Map<String, InterfaceDefinition> tmpInterfaces = new HashMap<>();
-        currServiceInterfaces.forEach(instInterface -> tmpInterfaces.put(instInterface
-            .getUniqueId(), instInterface));
+        currServiceInterfaces.forEach(instInterface -> tmpInterfaces.put(instInterface.getUniqueId(), instInterface));
 
         final Map<String, Object> interfaceMap = interfacesOperationsConverter
-            .getInterfacesMap(parentComponent, componentInstance, tmpInterfaces, dataTypes, isComponentOfTypeServiceProxy(componentInstance), isComponentOfTypeServiceProxy(componentInstance));
+                .getInterfacesMap(parentComponent, componentInstance, tmpInterfaces, dataTypes, isComponentOfTypeServiceProxy(componentInstance));
 
         interfacesOperationsConverter.removeInterfacesWithoutOperations(interfaceMap);
         nodeTemplate.setInterfaces(MapUtils.isEmpty(interfaceMap) ? null : interfaceMap);
@@ -995,34 +1207,7 @@ public class ToscaExportHandler {
 
     private boolean isComponentOfTypeServiceProxy(ComponentInstance componentInstance) {
         return Objects.nonNull(componentInstance.getOriginType())
-            && componentInstance.getOriginType().getValue().equals("Service Proxy");
-    }
-
-    //M3[00001] - NODE TEMPLATE INTERFACES  - START
-    private Map<String, Object> getComponentInstanceInterfaceInstances(
-        Map<String, List<ComponentInstanceInterface>> componentInstancesInterfaces,
-        ComponentInstance componentInstance,
-        String instanceUniqueId) {
-        if (MapUtils.isEmpty(componentInstancesInterfaces)) {
-            return null;
-        }
-
-        List<ComponentInstanceInterface> componentInstanceInterfaces =
-            componentInstancesInterfaces.get(instanceUniqueId);
-
-        if (CollectionUtils.isEmpty(componentInstanceInterfaces)) {
-            return null;
-        }
-
-        Map<String, Object> interfaces = new HashMap<>();
-        for (ComponentInstanceInterface componentInstanceInterface : componentInstanceInterfaces) {
-            interfaces.put(componentInstanceInterface.getInterfaceId(),
-                removeOperationsKeyFromInterface(componentInstanceInterface.getInterfaceInstanceDataDefinition()));
-        }
-
-        componentInstance.setInterfaces(interfaces);
-
-        return interfaces;
+                && componentInstance.getOriginType().getValue().equals("Service Proxy");
     }
 
     private void addComponentInstanceInputs(Map<String, DataTypeDefinition> dataTypes,
@@ -1032,24 +1217,32 @@ public class ToscaExportHandler {
         List<ComponentInstanceInput> instanceInputsList = componentInstancesInputs.get(instanceUniqueId);
         if (instanceInputsList != null) {
             instanceInputsList.forEach(input -> {
-
-                Supplier<String> supplier = () -> input.getValue() != null && !Objects.isNull(input.getValue())
-                    ? input.getValue() : input.getDefaultValue();
+                Supplier<String> supplier = () -> input.getValue() != null && !Objects.isNull(input.getValue()) ? input.getValue()
+                        : input.getDefaultValue();
                 propertyConvertor.convertAndAddValue(dataTypes, props, input, supplier);
             });
         }
     }
 
-    private void addPropertiesOfComponentInstance(
-        Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
-        Map<String, DataTypeDefinition> dataTypes, String instanceUniqueId,
-        Map<String, Object> props) {
+    private void addPropertiesOfComponentInstance(final Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
+                                                  final Map<String, DataTypeDefinition> dataTypes,
+                                                  final String instanceUniqueId,
+                                                  final Map<String, Object> props) {
 
         if (isNotEmpty(componentInstancesProperties)) {
             componentInstancesProperties.get(instanceUniqueId)
-                // Converts and adds each value to property map
-                .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
-                    prop::getValue));
+                    // Converts and adds each value to property map
+                    .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop, prop::getValue));
+        }
+    }
+
+    private void addAttributesOfComponentInstance(final Map<String, List<ComponentInstanceAttribute>> componentInstancesAttributes,
+                                                  final String instanceUniqueId,
+                                                  final Map<String, Object> attribs) {
+
+        if (isNotEmpty(componentInstancesAttributes) && componentInstancesAttributes.containsKey(instanceUniqueId)) {
+            componentInstancesAttributes.get(instanceUniqueId)
+                    .forEach(attributeDefinition -> attributeConverter.convertAndAddValue(attribs, attributeDefinition));
         }
     }
 
@@ -1059,11 +1252,22 @@ public class ToscaExportHandler {
         List<PropertyDefinition> componentProperties = componentOfInstance.getProperties();
         if (isNotEmpty(componentProperties)) {
             componentProperties.stream()
-                // Filters out properties with empty default values
-                .filter(prop -> StringUtils.isNotEmpty(prop.getDefaultValue()))
-                // Converts and adds each value to property map
-                .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
-                    prop::getDefaultValue));
+                    // Filters out properties with empty default values
+                    .filter(prop -> StringUtils.isNotEmpty(prop.getDefaultValue()))
+                    // Converts and adds each value to property map
+                    .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop, prop::getDefaultValue));
+        }
+    }
+
+    private void addAttributesOfParentComponent(final Component componentOfInstance, final Map<String, Object> attribs) {
+
+        final List<AttributeDefinition> componentAttributes = componentOfInstance.getAttributes();
+        if (isNotEmpty(componentAttributes)) {
+            componentAttributes.stream()
+                    // Filters out Attributes with empty default values
+                    .filter(attrib -> StringUtils.isNotEmpty(attrib.getDefaultValue()))
+                    // Converts and adds each value to attribute map
+                    .forEach(attributeDefinition -> attributeConverter.convertAndAddValue(attribs, attributeDefinition));
         }
     }
 
@@ -1076,34 +1280,12 @@ public class ToscaExportHandler {
             toscaNodeType.setDescription(component.getDescription());
         } else {
             String derivedFrom = null != component.getDerivedFromGenericType() ? component.getDerivedFromGenericType()
-                : NATIVE_ROOT;
+                    : NATIVE_ROOT;
             toscaNodeType.setDerived_from(derivedFrom);
         }
-        if (component instanceof Resource) {
-            final List<AttributeDefinition> attributes = ((Resource) component).getAttributes();
-            if (CollectionUtils.isNotEmpty(attributes)) {
-                final Map<String, Object> attributeDataDefinitionMap = new HashMap<>();
-                attributes.forEach(attributeDataDefinition ->
-                    buildAttributeData(attributeDataDefinition, attributeDataDefinitionMap));
-
-                toscaNodeType.setAttributes(attributeDataDefinitionMap);
-            }
-        }
         return toscaNodeType;
     }
 
-    private void buildAttributeData(final AttributeDefinition originalAttributeDefinition,
-                                    final Map<String, Object> attributeDataDefinitionMap) {
-
-        attributeDataDefinitionMap.put(originalAttributeDefinition.getName(),
-            new ObjectMapper().convertValue(new org.onap.sdc.tosca.datatypes.model.AttributeDefinition(
-                originalAttributeDefinition.getType(),
-                originalAttributeDefinition.getDescription(),
-                originalAttributeDefinition.get_default(),
-                originalAttributeDefinition.getStatus(),
-                originalAttributeDefinition.getEntry_schema()), Object.class));
-    }
-
     private Either<Map<String, Object>, ToscaError> createProxyInterfaceTypes(Component container) {
 
         Map<String, Object> proxyInterfaceTypes = new HashMap<>();
@@ -1114,8 +1296,8 @@ public class ToscaExportHandler {
         }
         Map<String, ComponentInstance> serviceProxyInstanceList = new HashMap<>();
         componentInstances.stream()
-            .filter(this::isComponentOfTypeServiceProxy)
-            .forEach(inst -> serviceProxyInstanceList.put(inst.getToscaComponentName(), inst));
+                .filter(this::isComponentOfTypeServiceProxy)
+                .forEach(inst -> serviceProxyInstanceList.put(inst.getToscaComponentName(), inst));
         if (MapUtils.isEmpty(serviceProxyInstanceList)) {
             return res;
         }
@@ -1125,28 +1307,28 @@ public class ToscaExportHandler {
             componentParametersView.disableAll();
             componentParametersView.setIgnoreInterfaces(false);
             Either<Component, StorageOperationStatus> service = toscaOperationFacade
-                .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
+                    .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
             if (service.isRight()) {
                 log.debug("Failed to fetch original service component with id {} for instance {}",
-                    entryProxy.getValue().getSourceModelUid(), entryProxy.getValue().getName());
+                        entryProxy.getValue().getSourceModelUid(), entryProxy.getValue().getName());
                 return Either.right(ToscaError.GENERAL_ERROR);
             } else {
                 serviceComponent = service.left().value();
             }
 
             Either<Map<String, InterfaceDefinition>, StorageOperationStatus> lifecycleTypeEither =
-                interfaceLifecycleOperation.getAllInterfaceLifecycleTypes();
+                    interfaceLifecycleOperation.getAllInterfaceLifecycleTypes(serviceComponent.getModel());
             if (lifecycleTypeEither.isRight()) {
                 log.debug("Failed to retrieve global interface types :", lifecycleTypeEither.right().value());
                 return Either.right(ToscaError.GENERAL_ERROR);
             }
 
             List<String> allGlobalInterfaceTypes = lifecycleTypeEither.left().value().values().stream()
-                .map(InterfaceDataDefinition::getType)
-                .collect(Collectors.toList());
+                    .map(InterfaceDataDefinition::getType)
+                    .collect(Collectors.toList());
             //Add interface types for local interfaces in the original service component for proxy
-            Map<String, Object> localInterfaceTypes = addInterfaceTypeElement(serviceComponent,
-                allGlobalInterfaceTypes);
+            Map<String, Object> localInterfaceTypes = interfacesOperationsConverter.addInterfaceTypeElement(serviceComponent,
+                    allGlobalInterfaceTypes);
             if (MapUtils.isNotEmpty(localInterfaceTypes)) {
                 proxyInterfaceTypes.putAll(localInterfaceTypes);
             }
@@ -1168,8 +1350,8 @@ public class ToscaExportHandler {
         }
         Map<String, ComponentInstance> serviceProxyInstanceList = new HashMap<>();
         List<ComponentInstance> proxyInst = componentInstances.stream()
-            .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceProxy.name()))
-            .collect(Collectors.toList());
+                .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceProxy.name()))
+                .collect(Collectors.toList());
         if (proxyInst != null && !proxyInst.isEmpty()) {
             for (ComponentInstance inst : proxyInst) {
                 serviceProxyInstanceList.put(inst.getToscaComponentName(), inst);
@@ -1180,10 +1362,10 @@ public class ToscaExportHandler {
             return res;
         }
         Either<Resource, StorageOperationStatus> serviceProxyOrigin = toscaOperationFacade
-            .getLatestByName("serviceProxy");
+                .getLatestByName("serviceProxy", null);
         if (serviceProxyOrigin.isRight()) {
             log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
-                serviceProxyOrigin.right().value());
+                    serviceProxyOrigin.right().value());
             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
         }
         Component origComponent = serviceProxyOrigin.left().value();
@@ -1198,16 +1380,16 @@ public class ToscaExportHandler {
             componentParametersView.setIgnoreInterfaces(false);
             componentParametersView.setIgnoreRequirements(false);
             Either<Component, StorageOperationStatus> service = toscaOperationFacade
-                .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
+                    .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
             if (service.isRight()) {
                 log.debug("Failed to fetch resource with id {} for instance {}",
-                    entryProxy.getValue().getSourceModelUid(), entryProxy.getValue().getName());
+                        entryProxy.getValue().getSourceModelUid(), entryProxy.getValue().getName());
             } else {
                 serviceComponent = service.left().value();
             }
 
             ToscaNodeType toscaNodeType = createProxyNodeType(componentCache, origComponent, serviceComponent,
-                entryProxy.getValue());
+                    entryProxy.getValue());
             nodeTypesMap.put(entryProxy.getKey(), toscaNodeType);
         }
 
@@ -1222,14 +1404,14 @@ public class ToscaExportHandler {
             return;
         }
         final List<ComponentInstance> serviceSubstitutionInstanceList = componentInstances.stream()
-            .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceSubstitution.name()))
-            .collect(Collectors.toList());
+                .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceSubstitution.name()))
+                .collect(Collectors.toList());
         if (CollectionUtils.isNotEmpty(serviceSubstitutionInstanceList)) {
             for (ComponentInstance inst : serviceSubstitutionInstanceList) {
                 final Map<String, ToscaNodeType> nodeTypes =
-                    toscaNode.getNode_types() == null ? new HashMap<>() : toscaNode.getNode_types();
+                        toscaNode.getNode_types() == null ? new HashMap<>() : toscaNode.getNode_types();
                 convertInterfaceNodeType(new HashMap<>(), componentCache.get(inst.getSourceModelUid()), toscaNode,
-                    nodeTypes, true);
+                        nodeTypes, true);
             }
         }
     }
@@ -1240,19 +1422,20 @@ public class ToscaExportHandler {
         String derivedFrom = ((Resource) origComponent).getToscaResourceName();
 
         toscaNodeType.setDerived_from(derivedFrom);
-        Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypesEither = dataTypeCache.getAll();
+        Either<Map<String, DataTypeDefinition>, JanusGraphOperationStatus> dataTypesEither = applicationDataTypeCache.getAll(
+                origComponent.getModel());
         if (dataTypesEither.isRight()) {
             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
         }
         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
         Map<String, ToscaCapability> capabilities = this.capabilityRequirementConverter
-            .convertProxyCapabilities(componentCache, componentInstance, dataTypes);
+                .convertProxyCapabilities(componentCache, componentInstance, dataTypes);
 
         if (MapUtils.isNotEmpty(capabilities)) {
             toscaNodeType.setCapabilities(capabilities);
         }
         List<Map<String, ToscaRequirement>> proxyNodeTypeRequirements = this.capabilityRequirementConverter
-            .convertProxyRequirements(componentCache, componentInstance);
+                .convertProxyRequirements(componentCache, componentInstance);
         if (CollectionUtils.isNotEmpty(proxyNodeTypeRequirements)) {
             toscaNodeType.setRequirements(proxyNodeTypeRequirements);
         }
@@ -1266,8 +1449,7 @@ public class ToscaExportHandler {
                 interfaceMap = proxyInterfaces.get();
             }
         } else {
-            interfaceMap = interfacesOperationsConverter
-                .getInterfacesMapFromComponentInstance(proxyComponent, componentInstance, dataTypes, false, false);
+            interfaceMap = interfacesOperationsConverter.getInterfacesMapFromComponentInstance(proxyComponent, componentInstance, dataTypes, false);
 
         }
         interfacesOperationsConverter.removeInterfacesWithoutOperations(interfaceMap);
@@ -1283,19 +1465,18 @@ public class ToscaExportHandler {
                                                                                        Component originComponent,
                                                                                        Map<String, Component> componentCache) {
 
-        final List<Map<String, ToscaTemplateRequirement>> toscaRequirements;
         final List<RequirementCapabilityRelDef> requirementDefinitionList = filterRequirements(componentInstance,
-            relations);
+                relations);
         if (isNotEmpty(requirementDefinitionList)) {
             try {
-                toscaRequirements = buildRequirements(component, componentInstance,
-                    requirementDefinitionList, originComponent, componentCache);
-                if (!toscaRequirements.isEmpty()) {
+                final List<Map<String, ToscaTemplateRequirement>> toscaRequirements = buildRequirements(component, componentInstance,
+                        requirementDefinitionList, originComponent, componentCache);
+                if (CollectionUtils.isNotEmpty(toscaRequirements)) {
                     nodeTypeTemplate.setRequirements(toscaRequirements);
                 }
             } catch (final Exception e) {
                 log.debug("Failed to convert component instance requirements for the component instance {}. ",
-                    componentInstance.getName(), e);
+                        componentInstance.getName(), e);
                 return Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
             }
         }
@@ -1308,14 +1489,15 @@ public class ToscaExportHandler {
                                                                           final List<RequirementCapabilityRelDef> filteredRelations,
                                                                           final Component originComponent,
                                                                           final Map<String, Component> componentCache)
-        throws ToscaExportException {
+            throws ToscaExportException {
 
         final List<Map<String, ToscaTemplateRequirement>> toscaRequirements = new ArrayList<>();
         for (RequirementCapabilityRelDef relationshipDefinition : filteredRelations) {
             final Map<String, ToscaTemplateRequirement> toscaTemplateRequirementMap =
-                buildRequirement(componentInstance, originComponent, component.getComponentInstances(),
-                    relationshipDefinition, componentCache);
-            toscaRequirements.add(toscaTemplateRequirementMap);
+                    buildRequirement(componentInstance, originComponent, component.getComponentInstances(), relationshipDefinition, componentCache);
+            if (MapUtils.isNotEmpty(toscaTemplateRequirementMap)) {
+                toscaRequirements.add(toscaTemplateRequirementMap);
+            }
         }
 
         return toscaRequirements;
@@ -1324,7 +1506,7 @@ public class ToscaExportHandler {
     private List<RequirementCapabilityRelDef> filterRequirements(ComponentInstance componentInstance,
                                                                  List<RequirementCapabilityRelDef> relations) {
         return relations.stream()
-            .filter(p -> componentInstance.getUniqueId().equals(p.getFromNode())).collect(Collectors.toList());
+                .filter(p -> componentInstance.getUniqueId().equals(p.getFromNode())).collect(Collectors.toList());
     }
 
     private Map<String, ToscaTemplateRequirement> buildRequirement(final ComponentInstance fromInstance,
@@ -1332,28 +1514,27 @@ public class ToscaExportHandler {
                                                                    final List<ComponentInstance> instancesList,
                                                                    final RequirementCapabilityRelDef relationshipDefinition,
                                                                    final Map<String, Component> componentCache)
-        throws ToscaExportException {
+            throws ToscaExportException {
 
         final Map<String, List<RequirementDefinition>> reqMap = fromOriginComponent.getRequirements();
-        final CapabilityRequirementRelationship capabilityRequirementRelationship = relationshipDefinition
-            .getRelationships().get(0);
+        if (MapUtils.isEmpty(reqMap)) {
+            return new HashMap<>();
+        }
+        final CapabilityRequirementRelationship capabilityRequirementRelationship = relationshipDefinition.getRelationships().get(0);
         final RelationshipInfo relationshipInfo = capabilityRequirementRelationship.getRelation();
 
-        final ComponentInstance toInstance = instancesList.stream()
-            .filter(i -> relationshipDefinition.getToNode().equals(i.getUniqueId()))
-            .findFirst().orElse(null);
+        final ComponentInstance toInstance = instancesList.stream().filter(i -> relationshipDefinition.getToNode().equals(i.getUniqueId()))
+                .findFirst().orElse(null);
         if (toInstance == null) {
             final String errorMsg = String
-                .format("Failed to find a relation from the node %s to the node %s", fromInstance.getName(),
-                    relationshipDefinition.getToNode());
+                    .format("Failed to find a relation from the node %s to the node %s", fromInstance.getName(),
+                            relationshipDefinition.getToNode());
             log.debug(errorMsg);
             throw new ToscaExportException(errorMsg);
         }
-        final Optional<RequirementDefinition> reqOpt =
-            findRequirement(fromOriginComponent, reqMap, relationshipInfo, fromInstance.getUniqueId());
+        final Optional<RequirementDefinition> reqOpt = findRequirement(fromOriginComponent, reqMap, relationshipInfo, fromInstance.getUniqueId());
         if (reqOpt.isEmpty()) {
-            final String errorMsg = String
-                .format("Failed to find a requirement with uniqueId %s on a component with uniqueId %s",
+            final String errorMsg = String.format("Failed to find a requirement with uniqueId %s on a component with uniqueId %s",
                     relationshipInfo.getRequirementUid(), fromOriginComponent.getUniqueId());
             log.debug(errorMsg);
             throw new ToscaExportException(errorMsg);
@@ -1363,46 +1544,44 @@ public class ToscaExportHandler {
         filter.setIgnoreCapabilities(false);
         filter.setIgnoreGroups(false);
         final Either<Component, StorageOperationStatus> getOriginRes =
-            toscaOperationFacade.getToscaElement(toInstance.getActualComponentUid(), filter);
+                toscaOperationFacade.getToscaElement(toInstance.getActualComponentUid(), filter);
         if (getOriginRes.isRight()) {
             final String errorMsg = String.format(
-                "Failed to build substituted name for the requirement %s. "
-                    + "Failed to get an origin component with uniqueId %s",
-                reqOpt.get().getName(), toInstance.getActualComponentUid());
+                    "Failed to build substituted name for the requirement %s. Failed to get an origin component with uniqueId %s",
+                    reqOpt.get().getName(), toInstance.getActualComponentUid());
             log.debug(errorMsg);
             throw new ToscaExportException(errorMsg);
         }
         final Component toOriginComponent = getOriginRes.left().value();
         Optional<CapabilityDefinition> capOpt = toOriginComponent.getCapabilities().get(reqOpt.get().getCapability()).stream()
-            .filter(c -> isCapabilityBelongToRelation(relationshipInfo, c)).findFirst();
+                .filter(c -> isCapabilityBelongToRelation(relationshipInfo, c)).findFirst();
         if (capOpt.isEmpty()) {
             capOpt = findCapability(relationshipInfo, toOriginComponent, fromOriginComponent, reqOpt.get());
             if (capOpt.isEmpty()) {
-                final String errorMsg = String
-                    .format("Failed to find a capability with name %s on a component with uniqueId %s",
+                final String errorMsg = String.format("Failed to find a capability with name %s on a component with uniqueId %s",
                         relationshipInfo.getCapability(), fromOriginComponent.getUniqueId());
                 log.debug(errorMsg);
                 throw new ToscaExportException(errorMsg);
             }
         }
         return buildRequirement(fromOriginComponent, toOriginComponent, capOpt.get(), reqOpt.get(),
-            capabilityRequirementRelationship, toInstance, componentCache);
+                capabilityRequirementRelationship, toInstance, componentCache);
     }
 
     private boolean isCapabilityBelongToRelation(RelationshipInfo reqAndRelationshipPair,
                                                  CapabilityDefinition capability) {
         return capability.getName().equals(reqAndRelationshipPair.getCapability()) && (capability.getOwnerId() != null
-            && capability.getOwnerId().equals(reqAndRelationshipPair.getCapabilityOwnerId()));
+                && capability.getOwnerId().equals(reqAndRelationshipPair.getCapabilityOwnerId()));
     }
 
     private Optional<CapabilityDefinition> findCapability(RelationshipInfo reqAndRelationshipPair,
                                                           Component toOriginComponent, Component fromOriginComponent,
                                                           RequirementDefinition requirement) {
         Optional<CapabilityDefinition> cap = toOriginComponent.getCapabilities().get(requirement.getCapability())
-            .stream().filter(c -> c.getType().equals(requirement.getCapability())).findFirst();
-        if (!cap.isPresent()) {
+                .stream().filter(c -> c.getType().equals(requirement.getCapability())).findFirst();
+        if (cap.isEmpty()) {
             log.debug("Failed to find a capability with name {} on a component with uniqueId {}",
-                reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
+                    reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
         }
         return cap;
     }
@@ -1414,31 +1593,31 @@ public class ToscaExportHandler {
                                                                    final CapabilityRequirementRelationship capabilityRequirementRelationship,
                                                                    final ComponentInstance toInstance,
                                                                    final Map<String, Component> componentCache)
-        throws ToscaExportException {
+            throws ToscaExportException {
 
         List<String> reducedPath = capability.getPath();
         if (capability.getOwnerId() != null) {
             reducedPath = capabilityRequirementConverter
-                .getReducedPathByOwner(capability.getPath(), capability.getOwnerId());
+                    .getReducedPathByOwner(capability.getPath(), capability.getOwnerId());
         }
         final RelationshipInfo relationshipInfo = capabilityRequirementRelationship.getRelation();
         final Either<String, Boolean> capabilityNameEither = capabilityRequirementConverter.buildSubstitutedName(componentCache,
-            toOriginComponent, reducedPath, relationshipInfo.getCapability(), capability.getPreviousName());
+                toOriginComponent, reducedPath, relationshipInfo.getCapability(), capability.getPreviousName(), capability.getExternalName());
         if (capabilityNameEither.isRight()) {
             final String errorMsg = String.format(
-                "Failed to build a substituted capability name for the capability with name %s on a component with uniqueId %s",
-                capabilityRequirementRelationship.getCapability(), toOriginComponent.getUniqueId());
+                    "Failed to build a substituted capability name for the capability with name %s on a component with uniqueId %s",
+                    capabilityRequirementRelationship.getCapability(), toOriginComponent.getUniqueId());
             log.debug(
-                errorMsg);
+                    errorMsg);
             throw new ToscaExportException(errorMsg);
         }
         final Either<String, Boolean> requirementNameEither = capabilityRequirementConverter
-            .buildSubstitutedName(componentCache, fromOriginComponent,
-                requirement.getPath(), relationshipInfo.getRequirement(), requirement.getPreviousName());
+                .buildSubstitutedName(componentCache, fromOriginComponent,
+                        requirement.getPath(), relationshipInfo.getRequirement(), requirement.getPreviousName(), requirement.getExternalName());
         if (requirementNameEither.isRight()) {
             final String errorMsg = String.format("Failed to build a substituted requirement name for the requirement "
-                    + "with name %s on a component with uniqueId %s",
-                capabilityRequirementRelationship.getRequirement(), fromOriginComponent.getUniqueId());
+                            + "with name %s on a component with uniqueId %s",
+                    capabilityRequirementRelationship.getRequirement(), fromOriginComponent.getUniqueId());
             log.debug(errorMsg);
             throw new ToscaExportException(errorMsg);
         }
@@ -1457,10 +1636,9 @@ public class ToscaExportHandler {
                                                             Map<String, List<RequirementDefinition>> reqMap,
                                                             RelationshipInfo reqAndRelationshipPair,
                                                             String fromInstanceId) {
-        for (List<RequirementDefinition> reqList : reqMap.values()) {
-            Optional<RequirementDefinition> reqOpt = reqList.stream().filter(
-                r -> isRequirementBelongToRelation(fromOriginComponent, reqAndRelationshipPair, r, fromInstanceId))
-                .findFirst();
+        for (final List<RequirementDefinition> reqList : reqMap.values()) {
+            final Optional<RequirementDefinition> reqOpt = reqList.stream()
+                    .filter(r -> isRequirementBelongToRelation(fromOriginComponent, reqAndRelationshipPair, r, fromInstanceId)).findFirst();
             if (reqOpt.isPresent()) {
                 return reqOpt;
             }
@@ -1469,70 +1647,63 @@ public class ToscaExportHandler {
     }
 
     /**
-     * Allows detecting the requirement belonging to the received relationship The detection logic is: A requirement
-     * belongs to a relationship IF 1.The name of the requirement equals to the "requirement" field of the relation; AND
-     * 2. In case of a non-atomic resource, OwnerId of the requirement equals to requirementOwnerId of the relation OR
-     * uniqueId of toInstance equals to capabilityOwnerId of the relation
+     * Allows detecting the requirement belonging to the received relationship The detection logic is: A requirement belongs to a relationship IF
+     * 1.The name of the requirement equals to the "requirement" field of the relation; AND 2. In case of a non-atomic resource, OwnerId of the
+     * requirement equals to requirementOwnerId of the relation OR uniqueId of toInstance equals to capabilityOwnerId of the relation
      */
     private boolean isRequirementBelongToRelation(Component originComponent, RelationshipInfo reqAndRelationshipPair,
                                                   RequirementDefinition requirement, String fromInstanceId) {
+        if (originComponent.isService() && requirement.getUniqueId().equals(reqAndRelationshipPair.getRequirementUid())) {
+            return true;
+        }
         if (!StringUtils.equals(requirement.getName(), reqAndRelationshipPair.getRequirement())) {
-            log.debug("Failed to find a requirement with name {} and  reqAndRelationshipPair {}",
-                requirement.getName(), reqAndRelationshipPair.getRequirement());
+            log.debug("Failed to find a requirement with name {} and  reqAndRelationshipPair {}", requirement.getName(),
+                    reqAndRelationshipPair.getRequirement());
             return false;
         }
-        return ModelConverter.isAtomicComponent(originComponent) ||
-            isRequirementBelongToOwner(reqAndRelationshipPair, requirement, fromInstanceId, originComponent);
+        return ModelConverter.isAtomicComponent(originComponent) || isRequirementBelongToOwner(reqAndRelationshipPair, requirement, fromInstanceId,
+                originComponent);
     }
 
-    private boolean isRequirementBelongToOwner(RelationshipInfo reqAndRelationshipPair,
-                                               RequirementDefinition requirement, String fromInstanceId,
+    private boolean isRequirementBelongToOwner(RelationshipInfo reqAndRelationshipPair, RequirementDefinition requirement, String fromInstanceId,
                                                Component originComponent) {
-        return StringUtils.equals(requirement.getOwnerId(), reqAndRelationshipPair.getRequirementOwnerId())
-            || (isCvfc(originComponent) && StringUtils
-            .equals(fromInstanceId, reqAndRelationshipPair.getRequirementOwnerId())
-            || StringUtils.equals(requirement.getOwnerId(), originComponent.getUniqueId()));
+        return StringUtils.equals(requirement.getOwnerId(), reqAndRelationshipPair.getRequirementOwnerId()) || (
+                isCvfc(originComponent) && StringUtils.equals(fromInstanceId, reqAndRelationshipPair.getRequirementOwnerId()) || StringUtils
+                        .equals(requirement.getOwnerId(), originComponent.getUniqueId()));
     }
 
     private boolean isCvfc(Component component) {
-        return component.getComponentType() == ComponentTypeEnum.RESOURCE &&
-            ((Resource) component).getResourceType() == ResourceTypeEnum.CVFC;
+        return component.getComponentType() == ComponentTypeEnum.RESOURCE && ((Resource) component).getResourceType() == ResourceTypeEnum.CVFC;
     }
 
-    private Either<SubstitutionMapping, ToscaError> convertCapabilities(Component component,
-                                                                        SubstitutionMapping substitutionMappings,
-                                                                        Map<String, Component> componentCache) {
-
-        Either<SubstitutionMapping, ToscaError> result = Either.left(substitutionMappings);
-        Either<Map<String, String[]>, ToscaError> toscaCapabilitiesRes = capabilityRequirementConverter
-            .convertSubstitutionMappingCapabilities(componentCache, component);
+    private Either<Map<String, String[]>, ToscaError> convertSubstitutionMappingCapabilities(final Component component,
+                                                                                             final Map<String, Component> componentCache) {
+        Either<Map<String, String[]>, ToscaError> toscaCapabilitiesRes =
+                capabilityRequirementConverter.convertSubstitutionMappingCapabilities(componentCache, component);
         if (toscaCapabilitiesRes.isRight()) {
-            result = Either.right(toscaCapabilitiesRes.right().value());
             log.debug("Failed convert capabilities for the component {}. ", component.getName());
-        } else if (isNotEmpty(toscaCapabilitiesRes.left().value())) {
-            substitutionMappings.setCapabilities(toscaCapabilitiesRes.left().value());
+            return Either.right(toscaCapabilitiesRes.right().value());
+        }
+        if (isNotEmpty(toscaCapabilitiesRes.left().value())) {
             log.debug("Finish convert capabilities for the component {}. ", component.getName());
+            return Either.left(toscaCapabilitiesRes.left().value());
         }
         log.debug("Finished to convert capabilities for the component {}. ", component.getName());
-        return result;
+
+        return Either.left(Collections.emptyMap());
     }
 
-    private Either<ToscaNodeType, ToscaError> convertCapabilities(Map<String, Component> componentsCache,
-                                                                  Component component, ToscaNodeType nodeType,
+    private Either<ToscaNodeType, ToscaError> convertCapabilities(Map<String, Component> componentsCache, Component component, ToscaNodeType nodeType,
                                                                   Map<String, DataTypeDefinition> dataTypes) {
-        Map<String, ToscaCapability> toscaCapabilities = capabilityRequirementConverter
-            .convertCapabilities(componentsCache, component,
-                dataTypes);
+        Map<String, ToscaCapability> toscaCapabilities = capabilityRequirementConverter.convertCapabilities(componentsCache, component, dataTypes);
         if (!toscaCapabilities.isEmpty()) {
             nodeType.setCapabilities(toscaCapabilities);
         }
         log.debug("Finish convert Capabilities for node type");
-
         return Either.left(nodeType);
     }
 
-    private Map<String, ToscaTemplateArtifact> convertToNodeTemplateArtifacts(
-        Map<String, ToscaArtifactDataDefinition> artifacts) {
+    private Map<String, ToscaTemplateArtifact> convertToNodeTemplateArtifacts(Map<String, ToscaArtifactDataDefinition> artifacts) {
         if (artifacts == null) {
             return null;
         }
@@ -1541,229 +1712,239 @@ public class ToscaExportHandler {
             ToscaTemplateArtifact artifact = new ToscaTemplateArtifact();
             artifact.setFile(entry.getValue().getFile());
             artifact.setType(entry.getValue().getType());
+            artifact.setProperties(entry.getValue().getProperties());
             arts.put(entry.getKey(), artifact);
         }
         return arts;
     }
 
-    protected NodeFilter convertToNodeTemplateNodeFilterComponent(CINodeFilterDataDefinition inNodeFilter) {
+    private NodeFilter convertToNodeTemplateNodeFilterComponent(CINodeFilterDataDefinition inNodeFilter) {
         if (inNodeFilter == null) {
             return null;
         }
         NodeFilter nodeFilter = new NodeFilter();
-
-        ListDataDefinition<RequirementNodeFilterCapabilityDataDefinition> origCapabilities =
-            inNodeFilter.getCapabilities();
-
-        ListDataDefinition<RequirementNodeFilterPropertyDataDefinition> origProperties = inNodeFilter.getProperties();
-
+        ListDataDefinition<RequirementNodeFilterCapabilityDataDefinition> origCapabilities = inNodeFilter.getCapabilities();
+        ListDataDefinition<PropertyFilterDataDefinition> origProperties = inNodeFilter.getProperties();
         List<Map<String, CapabilityFilter>> capabilitiesCopy = new ArrayList<>();
-        List<Map<String, List<Object>>> propertiesCopy = new ArrayList<>();
-
         copyNodeFilterCapabilitiesTemplate(origCapabilities, capabilitiesCopy);
-        copyNodeFilterProperties(origProperties, propertiesCopy);
-
         if (CollectionUtils.isNotEmpty(capabilitiesCopy)) {
             nodeFilter.setCapabilities(capabilitiesCopy);
         }
-
+        final List<Map<String, List<Object>>> propertiesCopy = copyNodeFilterProperties(origProperties);
         if (CollectionUtils.isNotEmpty(propertiesCopy)) {
             nodeFilter.setProperties(propertiesCopy);
         }
-
         nodeFilter.setTosca_id(cloneToscaId(inNodeFilter.getTosca_id()));
-
-        nodeFilter = (NodeFilter) cloneObjectFromYml(nodeFilter, NodeFilter.class);
-
-        return nodeFilter;
+        return cloneObjectFromYml(nodeFilter, NodeFilter.class);
     }
 
-    private NodeFilter convertToSubstitutionFilterComponent(
-        final SubstitutionFilterDataDefinition substitutionFilterDataDefinition) {
-
+    private NodeFilter convertToSubstitutionFilterComponent(final SubstitutionFilterDataDefinition substitutionFilterDataDefinition) {
         if (substitutionFilterDataDefinition == null) {
             return null;
         }
         NodeFilter nodeFilter = new NodeFilter();
-
-        ListDataDefinition<RequirementSubstitutionFilterPropertyDataDefinition> origProperties =
-            substitutionFilterDataDefinition.getProperties();
-        List<Map<String, List<Object>>> propertiesCopy = new ArrayList<>();
-
-        copySubstitutionFilterProperties(origProperties, propertiesCopy);
-
-        if (CollectionUtils.isNotEmpty(propertiesCopy)) {
+        final List<Map<String, List<Object>>> propertiesCopy = copySubstitutionPropertiesFilter(substitutionFilterDataDefinition.getProperties());
+        if (!propertiesCopy.isEmpty()) {
             nodeFilter.setProperties(propertiesCopy);
         }
         nodeFilter.setTosca_id(cloneToscaId(substitutionFilterDataDefinition.getTosca_id()));
-
-        return (NodeFilter) cloneObjectFromYml(nodeFilter, NodeFilter.class);
+        return cloneObjectFromYml(nodeFilter, NodeFilter.class);
     }
 
     private Object cloneToscaId(Object toscaId) {
-        return Objects.isNull(toscaId) ? null
-            : cloneObjectFromYml(toscaId, toscaId.getClass());
+        return Objects.isNull(toscaId) ? null : cloneObjectFromYml(toscaId, toscaId.getClass());
     }
 
-    private Object cloneObjectFromYml(Object objToClone, Class classOfObj) {
+    private <T> T cloneObjectFromYml(Object objToClone, Class<T> classOfObj) {
         String objectAsYml = yamlUtil.objectToYaml(objToClone);
         return yamlUtil.yamlToObject(objectAsYml, classOfObj);
     }
 
-    private void copyNodeFilterCapabilitiesTemplate(
-        ListDataDefinition<RequirementNodeFilterCapabilityDataDefinition> origCapabilities,
-        List<Map<String, CapabilityFilter>> capabilitiesCopy) {
-        if (origCapabilities == null || origCapabilities.getListToscaDataDefinition() == null ||
-            origCapabilities.getListToscaDataDefinition().isEmpty()) {
+    private void copyNodeFilterCapabilitiesTemplate(ListDataDefinition<RequirementNodeFilterCapabilityDataDefinition> origCapabilities,
+                                                    List<Map<String, CapabilityFilter>> capabilitiesCopy) {
+        if (origCapabilities == null || origCapabilities.getListToscaDataDefinition() == null || origCapabilities.getListToscaDataDefinition()
+                .isEmpty()) {
             return;
         }
         for (RequirementNodeFilterCapabilityDataDefinition capability : origCapabilities.getListToscaDataDefinition()) {
             Map<String, CapabilityFilter> capabilityFilterCopyMap = new HashMap<>();
-            CapabilityFilter capabilityFilter = new CapabilityFilter();
-            List<Map<String, List<Object>>> propertiesCopy = new ArrayList<>();
-            copyNodeFilterProperties(capability.getProperties(), propertiesCopy);
-            capabilityFilter.setProperties(propertiesCopy);
+            final var capabilityFilter = new CapabilityFilter();
+            capabilityFilter.setProperties(copyNodeFilterProperties(capability.getProperties()));
             capabilityFilterCopyMap.put(capability.getName(), capabilityFilter);
             capabilitiesCopy.add(capabilityFilterCopyMap);
         }
     }
 
-    private void copyNodeFilterProperties(
-        ListDataDefinition<RequirementNodeFilterPropertyDataDefinition> origProperties,
-        List<Map<String, List<Object>>> propertiesCopy) {
-        if (origProperties == null || origProperties.getListToscaDataDefinition() == null ||
-            origProperties.isEmpty()) {
-            return;
+    private List<Map<String, List<Object>>> copyNodeFilterProperties(final ListDataDefinition<PropertyFilterDataDefinition> origProperties) {
+        if (origProperties == null || origProperties.getListToscaDataDefinition() == null || origProperties.isEmpty()) {
+            return Collections.emptyList();
         }
-        Map<String, List<Object>> propertyMapCopy = new HashMap<>();
-        for (RequirementNodeFilterPropertyDataDefinition propertyDataDefinition : origProperties
-            .getListToscaDataDefinition()) {
-            for (String propertyInfoEntry : propertyDataDefinition.getConstraints()) {
-                Map propertyValObj = new YamlUtil().yamlToObject(propertyInfoEntry, Map.class);
-                String propertyName = propertyDataDefinition.getName();
-                if (propertyMapCopy.containsKey(propertyName)) {
-                    addPropertyConstraintValueToList(propertyName, propertyValObj, propertyMapCopy.get(propertyName));
-                } else {
-                    if (propertyName != null) {
-                        List propsList = new ArrayList();
-                        addPropertyConstraintValueToList(propertyName, propertyValObj, propsList);
-                        propertyMapCopy.put(propertyName, propsList);
-                    } else {
-                        propertyMapCopy.putAll(propertyValObj);
+        List<Map<String, List<Object>>> propertiesCopy = new ArrayList<>();
+        Map<String, List<Object>> propertyFilterDefinitionMap = new HashMap<>();
+        for (final PropertyFilterDataDefinition propertyFilter : origProperties.getListToscaDataDefinition()) {
+            final String propertyName = propertyFilter.getName();
+            for (final PropertyFilterConstraintDataDefinition filterConstraint : propertyFilter.getConstraints()) {
+                propertyFilterDefinitionMap.compute(propertyName, (propertyName1, constraints) -> {
+                    if (constraints == null) {
+                        constraints = new ArrayList<>();
                     }
-                }
+                    constraints.add(buildNodeFilterValue(filterConstraint));
+                    return constraints;
+                });
             }
         }
-        propertyMapCopy.entrySet().stream().forEach(entry ->
-            addCalculatedConstraintsIntoPropertiesList(propertiesCopy, entry));
+        propertyFilterDefinitionMap.entrySet().stream()
+                .map(entry -> Map.of(entry.getKey(), entry.getValue()))
+                .forEach(propertiesCopy::add);
+        return propertiesCopy;
     }
 
-    private void copySubstitutionFilterProperties(
-        final ListDataDefinition<RequirementSubstitutionFilterPropertyDataDefinition> origProperties,
-        final List<Map<String, List<Object>>> propertiesCopy) {
-        if (origProperties == null || origProperties.getListToscaDataDefinition() == null ||
-            origProperties.isEmpty()) {
-            return;
+    private List<Map<String, List<Object>>> copySubstitutionPropertiesFilter(
+            final ListDataDefinition<SubstitutionFilterPropertyDataDefinition> origProperties) {
+
+        if (origProperties == null || origProperties.getListToscaDataDefinition() == null || origProperties.isEmpty()) {
+            return Collections.emptyList();
         }
-        final Map<String, List<Object>> propertyMapCopy = new HashMap<>();
-        for (final RequirementSubstitutionFilterPropertyDataDefinition propertyDataDefinition : origProperties
-            .getListToscaDataDefinition()) {
-            for (final String propertyInfoEntry : propertyDataDefinition.getConstraints()) {
-                final Map<String, List<Object>> propertyValObj = new YamlUtil()
-                    .yamlToObject(propertyInfoEntry, Map.class);
-                final String propertyName = propertyDataDefinition.getName();
-                if (propertyMapCopy.containsKey(propertyName)) {
-                    addPropertyConstraintValueToList(propertyName, propertyValObj, propertyMapCopy.get(propertyName));
-                } else {
-                    if (propertyName != null) {
-                        final List<Object> propsList = new ArrayList();
-                        addPropertyConstraintValueToList(propertyName, propertyValObj, propsList);
-                        propertyMapCopy.put(propertyName, propsList);
-                    } else {
-                        propertyMapCopy.putAll(propertyValObj);
+        List<Map<String, List<Object>>> propertiesCopy = new ArrayList<>();
+        Map<String, List<Object>> propertyFilterDefinitionMap = new HashMap<>();
+        for (final SubstitutionFilterPropertyDataDefinition propertyFilter : origProperties.getListToscaDataDefinition()) {
+            final String propertyName = propertyFilter.getName();
+            for (final PropertyFilterConstraintDataDefinition filterConstraint : propertyFilter.getConstraints()) {
+                propertyFilterDefinitionMap.compute(propertyName, (propertyName1, constraints) -> {
+                    if (constraints == null) {
+                        constraints = new ArrayList<>();
                     }
-                }
+                    constraints.add(buildNodeFilterValue(filterConstraint));
+                    return constraints;
+                });
             }
         }
-        propertyMapCopy.entrySet().forEach(entry ->
-            addCalculatedConstraintsIntoPropertiesList(propertiesCopy, entry));
+        propertyFilterDefinitionMap.entrySet().stream()
+                .map(entry -> Map.of(entry.getKey(), entry.getValue()))
+                .forEach(propertiesCopy::add);
+        return propertiesCopy;
     }
 
-    private void addPropertyConstraintValueToList(String propertyName, Map propertyValObj, List propsList) {
-        if (propertyValObj.containsKey(propertyName)) {
-            propsList.add(propertyValObj.get(propertyName));
-        } else {
-            propsList.add(propertyValObj);
+    private static Object buildNodeFilterValue(final PropertyFilterConstraintDataDefinition filterConstraint) {
+        if (filterConstraint.getValue() instanceof ToscaFunction) {
+            return Map.of(filterConstraint.getOperator().getType(), ((ToscaFunction) filterConstraint.getValue()).getJsonObjectValue());
+        }
+        if (filterConstraint.getValue() instanceof List) {
+            if (((List<?>) filterConstraint.getValue()).get(0) instanceof ToscaFunction) {
+                List<Object> toscaFunctionList = new ArrayList<>();
+                ((List<?>) filterConstraint.getValue()).forEach(toscaFunctionValue -> toscaFunctionList.add(
+                        ((ToscaFunction) toscaFunctionValue).getJsonObjectValue()));
+                return Map.of(filterConstraint.getOperator().getType(), toscaFunctionList);
+            }
+        }
+        if (doesTypeNeedConvertingToIntOrFloat(filterConstraint.getOriginalType(), filterConstraint.getValue())) {
+            ToscaType toscaType = ToscaType.getToscaType(
+                    filterConstraint.getValue() instanceof List ? ToscaType.LIST.getType() : filterConstraint.getOriginalType());
+            filterConstraint.setValue(toscaType.convert(String.valueOf(filterConstraint.getValue())));
+        } else if (ConstraintType.LENGTH.getType().equals(filterConstraint.getOperator().getType()) ||
+                ConstraintType.MIN_LENGTH.getType().equals(filterConstraint.getOperator().getType()) ||
+                ConstraintType.MAX_LENGTH.getType().equals(filterConstraint.getOperator().getType())) {
+            filterConstraint.setValue(Integer.valueOf(String.valueOf(filterConstraint.getValue())));
+        }
+        if (doesTypeNeedConvertingToBoolean(filterConstraint.getOriginalType())) {
+            filterConstraint.setValue(ToscaType.getToscaType(filterConstraint.getOriginalType()).convert(
+                String.valueOf(filterConstraint.getValue())));
         }
+        return Map.of(filterConstraint.getOperator().getType(), filterConstraint.getValue());
     }
 
-    private void addCalculatedConstraintsIntoPropertiesList(List<Map<String, List<Object>>> propertiesCopy,
-                                                            Entry<String, List<Object>> entry) {
-        Map<String, List<Object>> tempMap = new HashMap<>();
-        tempMap.put(entry.getKey(), entry.getValue());
-        propertiesCopy.add(tempMap);
+    private static boolean doesTypeNeedConvertingToIntOrFloat(String propertyType, Object value) {
+        if (value instanceof List && ((List<?>) value).get(0) instanceof LinkedHashMap
+                && ((LinkedHashMap) ((List<?>) value).get(0)).get("type") != null) {
+            return false;
+        }
+        return ToscaType.INTEGER.getType().equals(propertyType) || ToscaType.FLOAT.getType().equals(propertyType);
     }
 
-    private static class CustomRepresenter extends Representer {
+    private static boolean doesTypeNeedConvertingToBoolean(String propertyType) {
+        return ToscaType.BOOLEAN.getType().equals(propertyType);
+    }
 
-        CustomRepresenter() {
-            super();
-            this.representers.put(ToscaPropertyAssignment.class, new RepresentToscaPropertyAssignment());
-            // null representer is exceptional and it is stored as an instance
-            // variable.
-            this.nullRepresenter = new RepresentNull();
+    private Map<String, String[]> buildSubstitutionMappingPropertyMapping(final Component component) {
+        if (component == null || CollectionUtils.isEmpty(component.getInputs())) {
+            return Collections.emptyMap();
+        }
+        Map<String, String[]> propertyMapping = new HashMap<>();
+        List<InputDefinition> propertyMappedInputList = component.getInputs().stream().filter(InputDefinition::isMappedToComponentProperty).collect(
+                Collectors.toList());
+
+        if (CollectionUtils.isNotEmpty(propertyMappedInputList)) {
+            propertyMappedInputList.forEach(inputDefinition -> {
+                if (StringUtils.isNotEmpty(inputDefinition.getPropertyId())) {
+                    Optional<PropertyDefinition> property = component.getProperties().stream()
+                            .filter(propertyDefinition -> propertyDefinition.getUniqueId().equals(inputDefinition.getPropertyId())).findFirst();
+                    if (property.isPresent()) {
+                        propertyMapping.put(property.get().getName(), new String[]{inputDefinition.getName()});
+                    }
+                } else {
+                    propertyMapping.put(inputDefinition.getName(), new String[]{inputDefinition.getName()});
+                }
+            });
+        }
+        return propertyMapping;
+    }
 
+    private Map<String, String[]> buildSubstitutionMappingAttributesMapping(final Component component) {
+        if (component == null || CollectionUtils.isEmpty(component.getOutputs())) {
+            return Collections.emptyMap();
         }
+        return component.getOutputs().stream().map(AttributeDataDefinition::getName)
+                .collect(Collectors.toMap(outputName -> outputName, outputName -> new String[]{outputName}, (outputName1, outputName2) -> outputName1));
+    }
 
-        private class RepresentToscaPropertyAssignment implements Represent {
-            public Node representData(Object data) {
-                final ToscaPropertyAssignment toscaOperationAssignment = (ToscaPropertyAssignment) data;
-                if (toscaOperationAssignment.getValue() instanceof String) {
-                    final String stringValue = (String) toscaOperationAssignment.getValue();
-                    if (isPropertyOrAttributeFunction(stringValue)) {
-                        return representGetAttribute(stringValue);
-                    }
+    private Optional<Map<String, ToscaProperty>> getProxyNodeTypeProperties(Component proxyComponent, Map<String, DataTypeDefinition> dataTypes) {
+        if (Objects.isNull(proxyComponent)) {
+            return Optional.empty();
+        }
+        final var proxyProperties = convertInputsToProperties(dataTypes, proxyComponent.getInputs(), proxyComponent.getUniqueId());
+        if (CollectionUtils.isNotEmpty(proxyComponent.getProperties())) {
+            proxyProperties.putAll(proxyComponent.getProperties().stream()
+                    .map(propertyDefinition -> resolvePropertyValueFromInput(propertyDefinition, proxyComponent.getInputs())).collect(Collectors
+                            .toMap(PropertyDataDefinition::getName,
+                                    property -> propertyConvertor.convertProperty(dataTypes, property, PropertyType.PROPERTY))));
+        }
+        return MapUtils.isNotEmpty(proxyProperties) ? Optional.of(proxyProperties) : Optional.empty();
+    }
 
-                    return representScalar(Tag.STR, stringValue);
-                }
-                return represent(null);
-            }
+    private Map<String, ToscaProperty> convertInputsToProperties(Map<String, DataTypeDefinition> dataTypes, List<InputDefinition> componentInputs,
+                                                                 String componentUniqueId) {
+        if (CollectionUtils.isEmpty(componentInputs)) {
+            return new HashMap<>();
+        }
+        return componentInputs.stream().filter(input -> componentUniqueId.equals(input.getInstanceUniqueId()))
+                .collect(Collectors.toMap(InputDefinition::getName, i -> propertyConvertor.convertProperty(dataTypes, i, PropertyType.INPUT)));
+    }
 
-            public Node representGetAttribute(final String getAttributeFunction) {
-                return represent(new Yaml().load(getAttributeFunction));
-            }
+    private Optional<Map<String, Object>> getProxyNodeTypeInterfaces(Component proxyComponent, Map<String, DataTypeDefinition> dataTypes) {
+        if (Objects.isNull(proxyComponent) || MapUtils.isEmpty(proxyComponent.getInterfaces())) {
+            return Optional.empty();
+        }
+        Map<String, InterfaceDefinition> proxyComponentInterfaces = proxyComponent.getInterfaces();
+        //Unset artifact path for operation implementation for proxy node types as for operations with artifacts it is
 
-            public boolean isPropertyOrAttributeFunction(final String value) {
-                try {
-                    final Yaml yaml = new Yaml();
-                    final Object yamlObj = yaml.load(value);
-                    if (!(yamlObj instanceof Map)) {
-                        return false;
-                    }
-                    final Map<String, Object> getAttributeMap = (Map) yamlObj;
-                    if (getAttributeMap.size() != 1) {
-                        return false;
-                    }
-                    final List<String> functionList = Arrays
-                        .asList(GET_ATTRIBUTE.getFunctionName(), GET_INPUT.getFunctionName(),
-                            GET_PROPERTY.getFunctionName());
-                    final Optional<String> function = getAttributeMap.keySet().stream()
-                        .filter(key -> functionList.stream().anyMatch(function1 -> function1.equals(key))).findFirst();
+        // always available in the proxy node template
+        removeOperationImplementationForProxyNodeType(proxyComponentInterfaces);
+        return Optional.ofNullable(interfacesOperationsConverter.getInterfacesMap(proxyComponent, null, proxyComponentInterfaces, dataTypes, false));
+    }
 
-                    if (function.isEmpty()) {
-                        return false;
-                    }
-                    final String functionName = function.get();
-                    final Object getAttributeValueObj = getAttributeMap.get(functionName);
-                    if (GET_INPUT.getFunctionName().equals(functionName)) {
-                        return validateGetInputValue(getAttributeValueObj);
-                    } else {
-                        return validateGetPropertyOrAttributeValue(getAttributeValueObj);
-                    }
-                } catch (final Exception ignored) {
-                    return false;
-                }
-            }
+    private Configuration getConfiguration() {
+        return ConfigurationManager.getConfigurationManager().getConfiguration();
+    }
+
+    private static class CustomRepresenter extends Representer {
+
+        CustomRepresenter() {
+            this.representers.put(ToscaPropertyAssignment.class, new RepresentToscaPropertyAssignment());
+            this.representers.put(ToscaAttribute.class, new RepresentToscaAttribute());
+            // null representer is exceptional and it is stored as an instance
+
+            // variable.
+            this.nullRepresenter = new RepresentNull();
         }
 
         public boolean validateGetInputValue(final Object valueObj) {
@@ -1773,7 +1954,6 @@ public class ToscaExportHandler {
             if (valueObj instanceof List) {
                 return ((List) valueObj).size() > 1;
             }
-
             return true;
         }
 
@@ -1781,13 +1961,11 @@ public class ToscaExportHandler {
             if (valueObj instanceof List) {
                 return ((List) valueObj).size() > 1;
             }
-
             return false;
         }
 
         @Override
-        protected NodeTuple representJavaBeanProperty(Object javaBean, Property property, Object propertyValue,
-                                                      Tag customTag) {
+        protected NodeTuple representJavaBeanProperty(Object javaBean, Property property, Object propertyValue, Tag customTag) {
             if (propertyValue == null) {
                 return null;
             }
@@ -1798,27 +1976,31 @@ public class ToscaExportHandler {
             if (javaBean instanceof ToscaRelationshipTemplate && "name".equals(property.getName())) {
                 return null;
             }
-
+            if (javaBean instanceof ToscaPropertyConstraint) {
+                return handleToscaPropertyConstraint((ToscaPropertyConstraint) javaBean, property, propertyValue, customTag);
+            }
             removeDefaultP(propertyValue);
             NodeTuple defaultNode = super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
-
             if (javaBean instanceof ToscaTopolgyTemplate && "relationshipTemplates".equals(property.getName())) {
                 return new NodeTuple(representData("relationship_templates"), defaultNode.getValueNode());
             }
+            return "_defaultp_".equals(property.getName()) ? new NodeTuple(representData("default"), defaultNode.getValueNode()) : defaultNode;
+        }
 
-            return "_defaultp_".equals(property.getName())
-                ? new NodeTuple(representData("default"), defaultNode.getValueNode()) : defaultNode;
+        private NodeTuple handleToscaPropertyConstraint(final ToscaPropertyConstraint javaBean, final Property property, final Object propertyValue,
+                                                        final Tag customTag) {
+            final NodeTuple nodeTuple = super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
+            final String entryToscaName = javaBean.getEntryToscaName(property.getName());
+            return new NodeTuple(representData(entryToscaName), nodeTuple.getValueNode());
         }
 
         private void removeDefaultP(final Object propertyValue) {
             if (propertyValue instanceof Map) {
                 final Map mapPropertyValue = ((Map) propertyValue);
-
                 final Iterator<Entry> iter = mapPropertyValue.entrySet().iterator();
                 Object defaultValue = null;
                 while (iter.hasNext()) {
                     final Map.Entry entry = iter.next();
-
                     if ("_defaultp_".equals(entry.getKey())) {
                         defaultValue = entry.getValue();
                         iter.remove();
@@ -1838,129 +2020,84 @@ public class ToscaExportHandler {
             if (!classTags.containsKey(javaBean.getClass())) {
                 addClassTag(javaBean.getClass(), Tag.MAP);
             }
-
             return super.representJavaBean(properties, javaBean);
         }
 
-        private class RepresentNull implements Represent {
+        private class RepresentToscaAttribute implements Represent {
 
             @Override
             public Node representData(Object data) {
-                // possible values are here http://yaml.org/type/null.html
-                return representScalar(Tag.NULL, "");
+                final ToscaAttribute toscaAttribute = (ToscaAttribute) data;
+                return represent(toscaAttribute.asToscaMap());
             }
         }
-    }
-
-    private static class UnsortedPropertyUtils extends PropertyUtils {
-
-        @Override
-        protected Set<Property> createPropertySet(Class type, BeanAccess bAccess)
-            throws IntrospectionException {
-            Collection<Property> fields = getPropertiesMap(type, BeanAccess.FIELD).values();
-            return new LinkedHashSet<>(fields);
-        }
-    }
-
-    private Object removeOperationsKeyFromInterface(Object interfaceInstanceDataDefinition) {
-        ObjectMapper objectMapper = new ObjectMapper();
-        objectMapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, false);
-
-        Map<String, Object> interfaceAsMap = ServiceUtils.getObjectAsMap(interfaceInstanceDataDefinition);
-        Map<String, Object> operations = (Map<String, Object>) interfaceAsMap.remove("operations");
-        interfaceAsMap.remove("empty");
-
-        if (MapUtils.isNotEmpty(operations)) {
-            interfaceAsMap.putAll(operations);
-        }
 
-        Object interfaceObject = objectMapper.convertValue(interfaceAsMap, Object.class);
+        private class RepresentToscaPropertyAssignment implements Represent {
 
-        return interfaceObject;
+            public Node representData(Object data) {
+                final ToscaPropertyAssignment toscaOperationAssignment = (ToscaPropertyAssignment) data;
+                if (toscaOperationAssignment.getValue() instanceof String) {
+                    final String stringValue = (String) toscaOperationAssignment.getValue();
+                    if (isPropertyOrAttributeFunction(stringValue)) {
+                        return representGetAttribute(stringValue);
+                    }
+                    return representScalar(Tag.STR, stringValue);
+                }
+                return represent(null);
+            }
 
-    }
+            public Node representGetAttribute(final String getAttributeFunction) {
+                return represent(new Yaml().load(getAttributeFunction));
+            }
 
-    private Map<String, String[]> buildSubstitutionMappingPropertyMapping(final Component component) {
-        if (component == null || CollectionUtils.isEmpty(component.getInputs())) {
-            return Collections.emptyMap();
+            public boolean isPropertyOrAttributeFunction(final String value) {
+                try {
+                    final Yaml yaml = new Yaml();
+                    final Object yamlObj = yaml.load(value);
+                    if (!(yamlObj instanceof Map)) {
+                        return false;
+                    }
+                    final Map<String, Object> getAttributeMap = (Map) yamlObj;
+                    if (getAttributeMap.size() != 1) {
+                        return false;
+                    }
+                    final List<String> functionList = Arrays
+                            .asList(GET_ATTRIBUTE.getFunctionName(), GET_INPUT.getFunctionName(), GET_PROPERTY.getFunctionName());
+                    final Optional<String> function = getAttributeMap.keySet().stream()
+                            .filter(key -> functionList.stream().anyMatch(function1 -> function1.equals(key))).findFirst();
+                    if (function.isEmpty()) {
+                        return false;
+                    }
+                    final String functionName = function.get();
+                    final Object getAttributeValueObj = getAttributeMap.get(functionName);
+                    if (GET_INPUT.getFunctionName().equals(functionName)) {
+                        return validateGetInputValue(getAttributeValueObj);
+                    } else {
+                        return validateGetPropertyOrAttributeValue(getAttributeValueObj);
+                    }
+                } catch (final Exception ignored) {
+                    return false;
+                }
+            }
         }
-        return component.getInputs().stream()
-            .map(PropertyDataDefinition::getName)
-            .collect(
-                Collectors.toMap(
-                    inputName -> inputName,
-                    inputName -> new String[]{inputName},
-                    (inputName1, inputName2) -> inputName1)
-            );
-    }
 
-    private Map<String, String[]> buildSubstitutionMappingAttributesMapping(final Component component) {
-        if (component == null || CollectionUtils.isEmpty(component.getOutputs())) {
-            return Collections.emptyMap();
-        }
-        return component.getOutputs().stream()
-            .map(AttributeDataDefinition::getName)
-            .collect(
-                Collectors.toMap(
-                    outputName -> outputName,
-                    outputName -> new String[]{outputName},
-                    (outputName1, outputName2) -> outputName1)
-            );
-    }
+        private class RepresentNull implements Represent {
 
-    Optional<Map<String, ToscaProperty>> getProxyNodeTypeProperties(Component proxyComponent,
-                                                                    Map<String, DataTypeDefinition>
-                                                                        dataTypes) {
-        if (Objects.isNull(proxyComponent)) {
-            return Optional.empty();
-        }
-        Map<String, ToscaProperty> proxyProperties = new HashMap<>();
-        addInputsToProperties(dataTypes, proxyComponent.getInputs(), proxyProperties);
-        if (CollectionUtils.isNotEmpty(proxyComponent.getProperties())) {
-            proxyProperties.putAll(proxyComponent.getProperties().stream()
-                .map(propertyDefinition -> resolvePropertyValueFromInput(propertyDefinition,
-                    proxyComponent.getInputs()))
-                .collect(Collectors.toMap(PropertyDataDefinition::getName,
-                    property -> propertyConvertor.convertProperty(dataTypes, property,
-                        PropertyConvertor.PropertyType.PROPERTY))));
+            @Override
+            public Node representData(Object data) {
+                // possible values are here http://yaml.org/type/null.html
+                return representScalar(Tag.NULL, "");
+            }
         }
-        return MapUtils.isNotEmpty(proxyProperties) ? Optional.of(proxyProperties) : Optional.empty();
     }
 
-    void addInputsToProperties(Map<String, DataTypeDefinition> dataTypes,
-                               List<InputDefinition> componentInputs,
-                               Map<String, ToscaProperty> mergedProperties) {
-        if (CollectionUtils.isEmpty(componentInputs)) {
-            return;
-        }
-        for (InputDefinition input : componentInputs) {
-            ToscaProperty property = propertyConvertor.convertProperty(dataTypes, input,
-                PropertyConvertor.PropertyType.INPUT);
-            mergedProperties.put(input.getName(), property);
-        }
-    }
+    private static class UnsortedPropertyUtils extends PropertyUtils {
 
-    Optional<Map<String, Object>> getProxyNodeTypeInterfaces(Component proxyComponent,
-                                                             Map<String, DataTypeDefinition> dataTypes) {
-        if (Objects.isNull(proxyComponent) || MapUtils.isEmpty(proxyComponent.getInterfaces())) {
-            return Optional.empty();
+        @Override
+        protected Set<Property> createPropertySet(Class type, BeanAccess bAccess) {
+            Collection<Property> fields = getPropertiesMap(type, BeanAccess.FIELD).values();
+            return new LinkedHashSet<>(fields);
         }
-        Map<String, InterfaceDefinition> proxyComponentInterfaces = proxyComponent.getInterfaces();
-        //Unset artifact path for operation implementation for proxy node types as for operations with artifacts it is
-        // always available in the proxy node template
-        removeOperationImplementationForProxyNodeType(proxyComponentInterfaces);
-        return Optional.ofNullable(interfacesOperationsConverter
-            .getInterfacesMap(proxyComponent, null, proxyComponentInterfaces, dataTypes,
-                false, false));
     }
 
-    private static void removeOperationImplementationForProxyNodeType(
-        Map<String, InterfaceDefinition> proxyComponentInterfaces) {
-        if (MapUtils.isEmpty(proxyComponentInterfaces)) {
-            return;
-        }
-        proxyComponentInterfaces.values().stream().map(InterfaceDataDefinition::getOperations)
-            .filter(MapUtils::isNotEmpty)
-            .forEach(operations -> operations.values().forEach(operation -> operation.setImplementation(null)));
-    }
 }