catalog-be/src/main/java/org/openecomp/sdc/be/tosca/ToscaExportHandler.java

   1 /*-
   2 * ============LICENSE_START=======================================================
   3 * SDC
   4 * ================================================================================
   5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6 * ================================================================================
   7 * Licensed under the Apache License, Version 2.0 (the "License");
   8 * you may not use this file except in compliance with the License.
   9 * You may obtain a copy of the License at
  10 *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12 *
  13  * Unless required by applicable law or agreed to in writing, software
  14 * distributed under the License is distributed on an "AS IS" BASIS,
  15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 * See the License for the specific language governing permissions and
  17 * limitations under the License.
  18 * ============LICENSE_END=========================================================
  19 */
  20
  21 package org.openecomp.sdc.be.tosca;
  22
  23 import static org.openecomp.sdc.be.tosca.utils.InterfacesOperationsToscaUtil.addInterfaceDefinitionElement;
  24 import static org.openecomp.sdc.be.tosca.utils.InterfacesOperationsToscaUtil.addInterfaceTypeElement;
  25
  26 import fj.data.Either;
  27 import org.apache.commons.lang.StringUtils;
  28 import org.apache.commons.lang3.tuple.ImmutablePair;
  29 import org.apache.commons.lang3.tuple.ImmutableTriple;
  30 import org.apache.commons.lang3.tuple.Triple;
  31 import org.openecomp.sdc.be.components.impl.exceptions.SdcResourceNotFoundException;
  32 import org.openecomp.sdc.be.config.ConfigurationManager;
  33 import org.openecomp.sdc.be.dao.titan.TitanOperationStatus;
  34 import org.openecomp.sdc.be.datatypes.components.ResourceMetadataDataDefinition;
  35 import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
  36 import org.openecomp.sdc.be.datatypes.enums.OriginTypeEnum;
  37 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
  38 import org.openecomp.sdc.be.model.ArtifactDefinition;
  39 import org.openecomp.sdc.be.model.CapabilityDefinition;
  40 import org.openecomp.sdc.be.model.Component;
  41 import org.openecomp.sdc.be.model.ComponentInstance;
  42 import org.openecomp.sdc.be.model.ComponentInstanceInput;
  43 import org.openecomp.sdc.be.model.ComponentInstanceProperty;
  44 import org.openecomp.sdc.be.model.ComponentParametersView;
  45 import org.openecomp.sdc.be.model.DataTypeDefinition;
  46 import org.openecomp.sdc.be.model.GroupInstance;
  47 import org.openecomp.sdc.be.model.InputDefinition;
  48 import org.openecomp.sdc.be.model.PropertyDefinition;
  49 import org.openecomp.sdc.be.model.RelationshipInfo;
  50 import org.openecomp.sdc.be.model.RequirementCapabilityRelDef;
  51 import org.openecomp.sdc.be.model.RequirementDefinition;
  52 import org.openecomp.sdc.be.model.Resource;
  53 import org.openecomp.sdc.be.model.Service;
  54 import org.openecomp.sdc.be.model.cache.ApplicationDataTypeCache;
  55 import org.openecomp.sdc.be.model.category.CategoryDefinition;
  56 import org.openecomp.sdc.be.model.jsontitan.operations.ToscaOperationFacade;
  57 import org.openecomp.sdc.be.model.jsontitan.utils.ModelConverter;
  58 import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
  59 import org.openecomp.sdc.be.tosca.model.SubstitutionMapping;
  60 import org.openecomp.sdc.be.tosca.model.ToscaCapability;
  61 import org.openecomp.sdc.be.tosca.model.ToscaGroupTemplate;
  62 import org.openecomp.sdc.be.tosca.model.ToscaMetadata;
  63 import org.openecomp.sdc.be.tosca.model.ToscaNodeTemplate;
  64 import org.openecomp.sdc.be.tosca.model.ToscaNodeType;
  65 import org.openecomp.sdc.be.tosca.model.ToscaPolicyTemplate;
  66 import org.openecomp.sdc.be.tosca.model.ToscaProperty;
  67 import org.openecomp.sdc.be.tosca.model.ToscaTemplate;
  68 import org.openecomp.sdc.be.tosca.model.ToscaTemplateRequirement;
  69 import org.openecomp.sdc.be.tosca.model.ToscaTopolgyTemplate;
  70 import org.openecomp.sdc.be.tosca.utils.ForwardingPathToscaUtil;
  71 import org.openecomp.sdc.be.tosca.utils.InputConverter;
  72 import org.openecomp.sdc.common.log.wrappers.Logger;
  73 import org.springframework.beans.factory.annotation.Autowired;
  74 import org.yaml.snakeyaml.DumperOptions;
  75 import org.yaml.snakeyaml.DumperOptions.FlowStyle;
  76 import org.yaml.snakeyaml.Yaml;
  77 import org.yaml.snakeyaml.introspector.BeanAccess;
  78 import org.yaml.snakeyaml.introspector.Property;
  79 import org.yaml.snakeyaml.introspector.PropertyUtils;
  80 import org.yaml.snakeyaml.nodes.MappingNode;
  81 import org.yaml.snakeyaml.nodes.Node;
  82 import org.yaml.snakeyaml.nodes.NodeTuple;
  83 import org.yaml.snakeyaml.nodes.Tag;
  84 import org.yaml.snakeyaml.representer.Represent;
  85 import org.yaml.snakeyaml.representer.Representer;
  86
  87 import java.beans.IntrospectionException;
  88 import java.util.ArrayList;
  89 import java.util.Collection;
  90 import java.util.HashMap;
  91 import java.util.LinkedHashSet;
  92 import java.util.List;
  93 import java.util.Map;
  94 import java.util.Map.Entry;
  95 import java.util.Optional;
  96 import java.util.Set;
  97 import java.util.function.Supplier;
  98 import java.util.stream.Collectors;
  99
 100 import static org.apache.commons.collections.CollectionUtils.isEmpty;
 101 import static org.apache.commons.collections.CollectionUtils.isNotEmpty;
 102 import static org.apache.commons.collections.MapUtils.isNotEmpty;
 103 import static org.apache.commons.lang.StringUtils.isNotEmpty;
 104
 105 @org.springframework.stereotype.Component("tosca-export-handler")
 106 public class ToscaExportHandler {
 107
 108     private ApplicationDataTypeCache dataTypeCache;
 109     private ToscaOperationFacade toscaOperationFacade;
 110     private CapabilityRequirementConverter capabilityRequirementConverter;
 111     private PolicyExportParser policyExportParser;
 112     private GroupExportParser groupExportParser;
 113     private PropertyConvertor propertyConvertor;
 114     private InputConverter inputConverter;
 115
 116     @Autowired
 117     public ToscaExportHandler(ApplicationDataTypeCache dataTypeCache, ToscaOperationFacade toscaOperationFacade,
 118                               CapabilityRequirementConverter capabilityRequirementConverter, PolicyExportParser policyExportParser,
 119                               GroupExportParser groupExportParser, InputConverter inputConverter) {
 120             this.dataTypeCache = dataTypeCache;
 121             this.toscaOperationFacade = toscaOperationFacade;
 122             this.capabilityRequirementConverter = capabilityRequirementConverter;
 123             this.policyExportParser = policyExportParser;
 124             this.groupExportParser = groupExportParser;
 125             this.propertyConvertor = PropertyConvertor.getInstance();
 126             this.inputConverter =  inputConverter;
 127       }
 128
 129
 130     private static final Logger log = Logger.getLogger(ToscaExportHandler.class);
 131
 132     public static final String TOSCA_VERSION = "tosca_simple_yaml_1_1";
 133     private static final String SERVICE_NODE_TYPE_PREFIX = "org.openecomp.service.";
 134     private static final String IMPORTS_FILE_KEY = "file";
 135     private static final String TOSCA_INTERFACE_NAME = "-interface.yml";
 136     public static final String ASSET_TOSCA_TEMPLATE = "assettoscatemplate";
 137     private static final String FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION = "convertToToscaTemplate - failed to get Default Imports section from configuration";
 138     private static final String NOT_SUPPORTED_COMPONENT_TYPE = "Not supported component type {}";
 139     private static final List<Map<String, Map<String, String>>> DEFAULT_IMPORTS = ConfigurationManager
 140             .getConfigurationManager().getConfiguration().getDefaultImports();
 141
 142     public Either<ToscaRepresentation, ToscaError> exportComponent(Component component) {
 143
 144         Either<ToscaTemplate, ToscaError> toscaTemplateRes = convertToToscaTemplate(component);
 145         if (toscaTemplateRes.isRight()) {
 146             return Either.right(toscaTemplateRes.right().value());
 147         }
 148
 149         ToscaTemplate toscaTemplate = toscaTemplateRes.left().value();
 150         ToscaRepresentation toscaRepresentation = this.createToscaRepresentation(toscaTemplate);
 151         return Either.left(toscaRepresentation);
 152     }
 153
 154     public Either<ToscaRepresentation, ToscaError> exportComponentInterface(Component component) {
 155         if (null == DEFAULT_IMPORTS) {
 156             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 157             return Either.right(ToscaError.GENERAL_ERROR);
 158         }
 159
 160         ToscaTemplate toscaTemplate = new ToscaTemplate(TOSCA_VERSION);
 161         toscaTemplate.setImports(new ArrayList<>(DEFAULT_IMPORTS));
 162         Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
 163         Either<ToscaTemplate, ToscaError> toscaTemplateRes = convertInterfaceNodeType(new HashMap<>(), component, toscaTemplate,
 164                 nodeTypes);
 165         if (toscaTemplateRes.isRight()) {
 166             return Either.right(toscaTemplateRes.right().value());
 167         }
 168
 169         toscaTemplate = toscaTemplateRes.left().value();
 170         ToscaRepresentation toscaRepresentation = this.createToscaRepresentation(toscaTemplate);
 171         return Either.left(toscaRepresentation);
 172     }
 173
 174     public ToscaRepresentation createToscaRepresentation(ToscaTemplate toscaTemplate) {
 175         CustomRepresenter representer = new CustomRepresenter();
 176         DumperOptions options = new DumperOptions();
 177         options.setAllowReadOnlyProperties(false);
 178         options.setPrettyFlow(true);
 179
 180         options.setDefaultFlowStyle(FlowStyle.FLOW);
 181         options.setCanonical(false);
 182
 183         representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
 184
 185         representer.setPropertyUtils(new UnsortedPropertyUtils());
 186         Yaml yaml = new Yaml(representer, options);
 187
 188         String yamlAsString = yaml.dumpAsMap(toscaTemplate);
 189
 190         StringBuilder sb = new StringBuilder();
 191         sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactHeader());
 192         sb.append(yamlAsString);
 193         sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactFooter());
 194
 195         ToscaRepresentation toscaRepresentation = new ToscaRepresentation();
 196         toscaRepresentation.setMainYaml(sb.toString());
 197         toscaRepresentation.setDependencies(toscaTemplate.getDependencies());
 198
 199         return toscaRepresentation;
 200     }
 201
 202     public Either<ToscaTemplate, ToscaError> getDependencies(Component component) {
 203         ToscaTemplate toscaTemplate = new ToscaTemplate(null);
 204         Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports = fillImports(component,
 205                 toscaTemplate);
 206         if (fillImports.isRight()) {
 207             return Either.right(fillImports.right().value());
 208         }
 209         return Either.left(fillImports.left().value().left);
 210     }
 211
 212     private Either<ToscaTemplate, ToscaError> convertToToscaTemplate(Component component) {
 213         if (null == DEFAULT_IMPORTS) {
 214             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 215             return Either.right(ToscaError.GENERAL_ERROR);
 216         }
 217
 218         log.trace("start tosca export for {}", component.getUniqueId());
 219         ToscaTemplate toscaTemplate = new ToscaTemplate(TOSCA_VERSION);
 220
 221         toscaTemplate.setMetadata(convertMetadata(component));
 222         toscaTemplate.setImports(new ArrayList<>(DEFAULT_IMPORTS));
 223         Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
 224         if (ModelConverter.isAtomicComponent(component)) {
 225             log.trace("convert component as node type");
 226             return convertNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes);
 227         } else {
 228             log.trace("convert component as topology template");
 229             return convertToscaTemplate(component, toscaTemplate);
 230         }
 231
 232     }
 233
 234     private Either<ToscaTemplate, ToscaError> convertToscaTemplate(Component component, ToscaTemplate toscaNode) {
 235
 236         Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> importsRes = fillImports(component,
 237                 toscaNode);
 238         if (importsRes.isRight()) {
 239             return Either.right(importsRes.right().value());
 240         }
 241         toscaNode = importsRes.left().value().left;
 242         Map<String, Component> componentCache = importsRes.left().value().right;
 243         Either<Map<String, ToscaNodeType>, ToscaError> nodeTypesMapEither = createProxyNodeTypes(componentCache , component );
 244         if (nodeTypesMapEither.isRight()) {
 245             log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
 246                     nodeTypesMapEither.right().value());
 247             return Either.right(nodeTypesMapEither.right().value());
 248         }
 249         Map<String, ToscaNodeType> nodeTypesMap = nodeTypesMapEither.left().value();
 250         if (nodeTypesMap != null && !nodeTypesMap.isEmpty()) {
 251             toscaNode.setNode_types(nodeTypesMap);
 252         }
 253
 254
 255         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 256         if (dataTypesEither.isRight()) {
 257             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
 258             return Either.right(ToscaError.GENERAL_ERROR);
 259         }
 260         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 261         ToscaTopolgyTemplate topologyTemplate = new ToscaTopolgyTemplate();
 262         List<InputDefinition> inputDef = component.getInputs();
 263         Map<String, ToscaProperty> inputs = inputConverter.convertInputs(inputDef, dataTypes);
 264
 265         if (!inputs.isEmpty()) {
 266             topologyTemplate.setInputs(inputs);
 267         }
 268
 269         List<ComponentInstance> componentInstances = component.getComponentInstances();
 270         Map<String, List<ComponentInstanceProperty>> componentInstancesProperties = component
 271                 .getComponentInstancesProperties();
 272         if (componentInstances != null && !componentInstances.isEmpty()) {
 273
 274             Either<Map<String, ToscaNodeTemplate>, ToscaError> nodeTemplates = convertNodeTemplates(component,
 275                     componentInstances, componentInstancesProperties, componentCache, dataTypes, topologyTemplate);
 276             if (nodeTemplates.isRight()) {
 277                 return Either.right(nodeTemplates.right().value());
 278             }
 279             log.debug("node templates converted");
 280
 281             topologyTemplate.setNode_templates(nodeTemplates.left().value());
 282         }
 283
 284
 285         addGroupsToTopologyTemplate(component, topologyTemplate);
 286
 287         try {
 288              addPoliciesToTopologyTemplate(component, topologyTemplate);
 289             } catch (SdcResourceNotFoundException e) {
 290                   log.debug("Fail to add policies to topology template:",e);
 291                   Either.right(ToscaError.GENERAL_ERROR);
 292             }
 293
 294
 295         SubstitutionMapping substitutionMapping = new SubstitutionMapping();
 296         String toscaResourceName;
 297         switch (component.getComponentType()) {
 298         case RESOURCE:
 299             toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
 300                     .getMetadataDataDefinition()).getToscaResourceName();
 301             break;
 302         case SERVICE:
 303             toscaResourceName = SERVICE_NODE_TYPE_PREFIX
 304                     + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
 305             break;
 306         default:
 307             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 308             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 309         }
 310         substitutionMapping.setNode_type(toscaResourceName);
 311
 312         Either<SubstitutionMapping, ToscaError> capabilities = convertCapabilities(component, substitutionMapping, componentCache);
 313         if (capabilities.isRight()) {
 314             return Either.right(capabilities.right().value());
 315         }
 316         substitutionMapping = capabilities.left().value();
 317
 318         Either<SubstitutionMapping, ToscaError> requirements = capabilityRequirementConverter
 319                 .convertSubstitutionMappingRequirements(componentCache, component, substitutionMapping);
 320         if (requirements.isRight()) {
 321             return Either.right(requirements.right().value());
 322         }
 323         substitutionMapping = requirements.left().value();
 324
 325         topologyTemplate.setSubstitution_mappings(substitutionMapping);
 326
 327         toscaNode.setTopology_template(topologyTemplate);
 328         return Either.left(toscaNode);
 329     }
 330
 331       private void addGroupsToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate) {
 332
 333
 334             Map<String, ToscaGroupTemplate> groups = groupExportParser.getGroups(component);
 335             if(groups!= null) {
 336                   topologyTemplate.addGroups(groups);
 337             }
 338       }
 339
 340       private void addPoliciesToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate)
 341                   throws SdcResourceNotFoundException {
 342             Map<String, ToscaPolicyTemplate> policies = policyExportParser.getPolicies(component);
 343             if(policies!= null) {
 344                   topologyTemplate.addPolicies(policies);
 345             }
 346       }
 347
 348     private ToscaMetadata convertMetadata(Component component) {
 349         return convertMetadata(component, false, null);
 350     }
 351
 352     private ToscaMetadata convertMetadata(Component component, boolean isInstance,
 353             ComponentInstance componentInstance) {
 354         ToscaMetadata toscaMetadata = new ToscaMetadata();
 355         toscaMetadata.setInvariantUUID(component.getInvariantUUID());
 356         toscaMetadata.setUUID(component.getUUID());
 357         toscaMetadata.setDescription(component.getDescription());
 358         toscaMetadata.setName(component.getComponentMetadataDefinition().getMetadataDataDefinition().getName());
 359
 360         List<CategoryDefinition> categories = component.getCategories();
 361         CategoryDefinition categoryDefinition = categories.get(0);
 362         toscaMetadata.setCategory(categoryDefinition.getName());
 363
 364         if (isInstance) {
 365             toscaMetadata.setVersion(component.getVersion());
 366             toscaMetadata.setCustomizationUUID(componentInstance.getCustomizationUUID());
 367             if (componentInstance.getSourceModelInvariant() != null
 368                     && !componentInstance.getSourceModelInvariant().isEmpty()) {
 369                 toscaMetadata.setVersion(componentInstance.getComponentVersion());
 370                 toscaMetadata.setSourceModelInvariant(componentInstance.getSourceModelInvariant());
 371                 toscaMetadata.setSourceModelUuid(componentInstance.getSourceModelUuid());
 372                 toscaMetadata.setSourceModelName(componentInstance.getSourceModelName());
 373                 toscaMetadata.setName(
 374                         componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceProxy.getDisplayValue());
 375                 toscaMetadata.setDescription(componentInstance.getDescription());
 376             }
 377
 378         }
 379         switch (component.getComponentType()) {
 380         case RESOURCE:
 381             Resource resource = (Resource) component;
 382
 383             if (isInstance && componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy) {
 384                 toscaMetadata.setType(componentInstance.getOriginType().getDisplayValue());
 385             } else {
 386                 toscaMetadata.setType(resource.getResourceType().name());
 387             }
 388             toscaMetadata.setSubcategory(categoryDefinition.getSubcategories().get(0).getName());
 389             toscaMetadata.setResourceVendor(resource.getVendorName());
 390             toscaMetadata.setResourceVendorRelease(resource.getVendorRelease());
 391             toscaMetadata.setResourceVendorModelNumber(resource.getResourceVendorModelNumber());
 392             break;
 393         case SERVICE:
 394             Service service = (Service) component;
 395             toscaMetadata.setType(component.getComponentType().getValue());
 396             toscaMetadata.setServiceType(service.getServiceType());
 397             toscaMetadata.setServiceRole(service.getServiceRole());
 398             toscaMetadata.setEnvironmentContext(service.getEnvironmentContext());
 399             resolveInstantiationTypeAndSetItToToscaMetaData(toscaMetadata, service);
 400             if (!isInstance) {
 401                 // DE268546
 402                 toscaMetadata.setServiceEcompNaming(((Service) component).isEcompGeneratedNaming());
 403                 toscaMetadata.setEcompGeneratedNaming(((Service) component).isEcompGeneratedNaming());
 404                 toscaMetadata.setNamingPolicy(((Service) component).getNamingPolicy());
 405             }
 406             break;
 407         default:
 408             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 409         }
 410         return toscaMetadata;
 411     }
 412
 413       private void resolveInstantiationTypeAndSetItToToscaMetaData(ToscaMetadata toscaMetadata, Service service) {
 414             if (service.getInstantiationType() != null) {
 415                         toscaMetadata.setInstantiationType(service.getInstantiationType());
 416             }
 417             else {
 418                         toscaMetadata.setInstantiationType(StringUtils.EMPTY);
 419             }
 420       }
 421
 422     private Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports(Component component,
 423             ToscaTemplate toscaTemplate) {
 424
 425         if (null == DEFAULT_IMPORTS) {
 426             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 427             return Either.right(ToscaError.GENERAL_ERROR);
 428         }
 429         Map<String, Component> componentCache = new HashMap<>();
 430
 431         if (!ModelConverter.isAtomicComponent(component)) {
 432             List<ComponentInstance> componentInstances = component.getComponentInstances();
 433             if (componentInstances != null && !componentInstances.isEmpty()) {
 434
 435                 List<Map<String, Map<String, String>>> additionalImports = toscaTemplate.getImports() == null
 436                         ? new ArrayList<>(DEFAULT_IMPORTS) : new ArrayList<>(toscaTemplate.getImports());
 437
 438                 List<Triple<String, String, Component>> dependecies = new ArrayList<>();
 439
 440                 Map<String, ArtifactDefinition> toscaArtifacts = component.getToscaArtifacts();
 441                 ArtifactDefinition artifactDefinition = toscaArtifacts.get(ToscaExportHandler.ASSET_TOSCA_TEMPLATE);
 442
 443                 Map<String, Map<String, String>> importsListMember = new HashMap<>();
 444                 Map<String, String> interfaceFiles = new HashMap<>();
 445                 interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactDefinition.getArtifactName()));
 446                 StringBuilder keyNameBuilder = new StringBuilder();
 447                 keyNameBuilder.append(component.getComponentType().toString().toLowerCase());
 448                 keyNameBuilder.append("-");
 449                 keyNameBuilder.append(component.getName());
 450                 keyNameBuilder.append("-interface");
 451                 importsListMember.put(keyNameBuilder.toString(), interfaceFiles);
 452                 additionalImports.add(importsListMember);
 453
 454                 componentInstances.forEach(ci -> createDependency(componentCache, additionalImports, dependecies, ci));
 455                 toscaTemplate.setDependencies(dependecies);
 456                 toscaTemplate.setImports(additionalImports);
 457             }
 458         } else {
 459             log.debug("currently imports supported for VF and service only");
 460         }
 461         return Either.left(new ImmutablePair<>(toscaTemplate, componentCache));
 462     }
 463
 464     private void createDependency(Map<String, Component> componentCache, List<Map<String, Map<String, String>>> imports,
 465             List<Triple<String, String, Component>> dependecies, ComponentInstance ci) {
 466         Map<String, String> files = new HashMap<>();
 467         Map<String, Map<String, String>> importsListMember = new HashMap<>();
 468         StringBuilder keyNameBuilder;
 469
 470         Component componentRI = componentCache.get(ci.getComponentUid());
 471         if (componentRI == null) {
 472             // all resource must be only once!
 473             Either<Component, StorageOperationStatus> resource = toscaOperationFacade
 474                     .getToscaFullElement(ci.getComponentUid());
 475             if ((resource.isRight()) && (log.isDebugEnabled())) {
 476                 log.debug("Failed to fetch resource with id {} for instance {}",ci.getComponentUid() ,ci.getUniqueId());
 477                 return ;
 478             }
 479
 480             Component fetchedComponent = resource.left().value();
 481             componentCache.put(fetchedComponent.getUniqueId(), fetchedComponent);
 482
 483             if (ci.getOriginType() == OriginTypeEnum.ServiceProxy){
 484                 Either<Component, StorageOperationStatus> sourceService = toscaOperationFacade
 485                         .getToscaFullElement(ci.getSourceModelUid());
 486                 if (sourceService.isRight() && (log.isDebugEnabled())) {
 487                     log.debug("Failed to fetch source service with id {} for proxy {}", ci.getSourceModelUid(), ci.getUniqueId());
 488                 }
 489                 Component fetchedSource = sourceService.left().value();
 490                 componentCache.put(fetchedSource.getUniqueId(), fetchedSource);
 491             }
 492
 493             componentRI = fetchedComponent;
 494
 495             Map<String, ArtifactDefinition> toscaArtifacts = componentRI.getToscaArtifacts();
 496             ArtifactDefinition artifactDefinition = toscaArtifacts.get(ASSET_TOSCA_TEMPLATE);
 497             if (artifactDefinition != null) {
 498                 String artifactName = artifactDefinition.getArtifactName();
 499                 files.put(IMPORTS_FILE_KEY, artifactName);
 500                 keyNameBuilder = new StringBuilder();
 501                 keyNameBuilder.append(fetchedComponent.getComponentType().toString().toLowerCase());
 502                 keyNameBuilder.append("-");
 503                 keyNameBuilder.append(ci.getComponentName());
 504                 importsListMember.put(keyNameBuilder.toString(), files);
 505                 imports.add(importsListMember);
 506                 dependecies.add(new ImmutableTriple<>(artifactName,
 507                         artifactDefinition.getEsId(), fetchedComponent));
 508
 509                 if (!ModelConverter.isAtomicComponent(componentRI)) {
 510                     importsListMember = new HashMap<>();
 511                     Map<String, String> interfaceFiles = new HashMap<>();
 512                     interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactName));
 513                     keyNameBuilder.append("-interface");
 514                     importsListMember.put(keyNameBuilder.toString(), interfaceFiles);
 515                     imports.add(importsListMember);
 516                 }
 517             }
 518         }
 519     }
 520
 521     public static String getInterfaceFilename(String artifactName) {
 522         return artifactName.substring(0, artifactName.lastIndexOf('.')) + ToscaExportHandler.TOSCA_INTERFACE_NAME;
 523     }
 524
 525     private Either<ToscaTemplate, ToscaError> convertNodeType(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
 526             Map<String, ToscaNodeType> nodeTypes) {
 527         log.debug("start convert node type for {}", component.getUniqueId());
 528         ToscaNodeType toscaNodeType = createNodeType(component);
 529
 530         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 531         if (dataTypesEither.isRight()) {
 532             log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
 533             return Either.right(ToscaError.GENERAL_ERROR);
 534         }
 535
 536         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 537         Either<ToscaNodeType, ToscaError> properties = propertyConvertor.convertProperties(component, toscaNodeType,
 538                 dataTypes);
 539         if (properties.isRight()) {
 540             return Either.right(properties.right().value());
 541         }
 542         toscaNodeType = properties.left().value();
 543         log.debug("Properties converted for {}", component.getUniqueId());
 544
 545         // Extracted to method for code reuse
 546         return convertReqCapAndTypeName(componentsCache, component, toscaNode, nodeTypes, toscaNodeType, dataTypes);
 547     }
 548
 549     private Either<ToscaTemplate, ToscaError> convertInterfaceNodeType(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
 550             Map<String, ToscaNodeType> nodeTypes) {
 551         log.debug("start convert node type for {}", component.getUniqueId());
 552         ToscaNodeType toscaNodeType = createNodeType(component);
 553
 554         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 555         if (dataTypesEither.isRight()) {
 556             log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
 557             return Either.right(ToscaError.GENERAL_ERROR);
 558         }
 559
 560         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 561
 562         List<InputDefinition> inputDef = component.getInputs();
 563         Map<String, ToscaProperty> inputs = new HashMap<>();
 564
 565         if (inputDef != null) {
 566             inputDef.forEach(i -> {
 567                 ToscaProperty property = propertyConvertor.convertProperty(dataTypes, i, false);
 568                 inputs.put(i.getName(), property);
 569             });
 570             if (!inputs.isEmpty()) {
 571                 toscaNodeType.setProperties(inputs);
 572                 addInterfaceDefinitionElement(component, toscaNodeType);
 573             }
 574         }
 575         return convertReqCapAndTypeName(componentsCache, component, toscaNode, nodeTypes, toscaNodeType, dataTypes);
 576     }
 577
 578     private Either<ToscaTemplate, ToscaError> convertReqCapAndTypeName(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
 579             Map<String, ToscaNodeType> nodeTypes, ToscaNodeType toscaNodeType,
 580             Map<String, DataTypeDefinition> dataTypes) {
 581         Either<ToscaNodeType, ToscaError> capabilities = convertCapabilities(componentsCache, component, toscaNodeType, dataTypes);
 582         if (capabilities.isRight()) {
 583             return Either.right(capabilities.right().value());
 584         }
 585         toscaNodeType = capabilities.left().value();
 586         log.debug("Capabilities converted for {}", component.getUniqueId());
 587
 588         Either<ToscaNodeType, ToscaError> requirements = capabilityRequirementConverter.convertRequirements(componentsCache, component,
 589                 toscaNodeType);
 590         if (requirements.isRight()) {
 591             return Either.right(requirements.right().value());
 592         }
 593         toscaNodeType = requirements.left().value();
 594         log.debug("Requirements converted for {}", component.getUniqueId());
 595
 596         String toscaResourceName;
 597         switch (component.getComponentType()) {
 598         case RESOURCE:
 599             toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
 600                     .getMetadataDataDefinition()).getToscaResourceName();
 601             break;
 602         case SERVICE:
 603             toscaResourceName = SERVICE_NODE_TYPE_PREFIX
 604                     + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
 605             break;
 606         default:
 607             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 608             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 609         }
 610
 611         nodeTypes.put(toscaResourceName, toscaNodeType);
 612         toscaNode.setNode_types(nodeTypes);
 613         log.debug("finish convert node type for {}", component.getUniqueId());
 614         return Either.left(toscaNode);
 615     }
 616
 617     private Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplates(Component component,
 618             List<ComponentInstance> componentInstances,
 619             Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
 620             Map<String, Component> componentCache, Map<String, DataTypeDefinition> dataTypes,
 621             ToscaTopolgyTemplate topologyTemplate) {
 622
 623         Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplatesRes = null;
 624         log.debug("start convert topology template for {} for type {}", component.getUniqueId(),
 625                 component.getComponentType());
 626         Map<String, ToscaNodeTemplate> nodeTemplates = new HashMap<>();
 627         Map<String, List<ComponentInstanceInput>> componentInstancesInputs = component.getComponentInstancesInputs();
 628
 629         Map<String, ToscaGroupTemplate> groupsMap = null;
 630         for (ComponentInstance componentInstance : componentInstances) {
 631             ToscaNodeTemplate nodeTemplate = new ToscaNodeTemplate();
 632             nodeTemplate.setType(componentInstance.getToscaComponentName());
 633
 634             Either<Component, Boolean> originComponentRes = capabilityRequirementConverter
 635                     .getOriginComponent(componentCache, componentInstance);
 636             if (originComponentRes.isRight()) {
 637                 convertNodeTemplatesRes = Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
 638                 break;
 639             }
 640             Either<ToscaNodeTemplate, ToscaError> requirements = convertComponentInstanceRequirements(component,
 641                     componentInstance, component.getComponentInstancesRelations(), nodeTemplate,
 642                     originComponentRes.left().value(), componentCache);
 643             if (requirements.isRight()) {
 644                 convertNodeTemplatesRes = Either.right(requirements.right().value());
 645                 break;
 646             }
 647             String instanceUniqueId = componentInstance.getUniqueId();
 648             log.debug("Component instance Requirements converted for instance {}", instanceUniqueId);
 649
 650             nodeTemplate = requirements.left().value();
 651
 652             Component originalComponent = componentCache.get(componentInstance.getActualComponentUid());
 653
 654             if (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy){
 655                 Component componentOfProxy = componentCache.get(componentInstance.getComponentUid());
 656                 nodeTemplate.setMetadata(convertMetadata(componentOfProxy, true, componentInstance));
 657             } else {
 658                 nodeTemplate.setMetadata(convertMetadata(originalComponent, true, componentInstance));
 659             }
 660
 661             Either<ToscaNodeTemplate, ToscaError> capabilities = capabilityRequirementConverter
 662                     .convertComponentInstanceCapabilities(componentInstance, dataTypes, nodeTemplate);
 663             if (capabilities.isRight()) {
 664                 convertNodeTemplatesRes = Either.right(capabilities.right().value());
 665                 break;
 666             }
 667             log.debug("Component instance Capabilities converted for instance {}", instanceUniqueId);
 668
 669             nodeTemplate = capabilities.left().value();
 670             Map<String, Object> props = new HashMap<>();
 671
 672             if (originalComponent.getComponentType() == ComponentTypeEnum.RESOURCE) {
 673                 // Adds the properties of parent component to map
 674                 addPropertiesOfParentComponent(dataTypes, originalComponent, props);
 675             }
 676
 677             if (null != componentInstancesProperties && componentInstancesProperties.containsKey(instanceUniqueId)) {
 678                 addPropertiesOfComponentInstance(componentInstancesProperties, dataTypes,
 679                         instanceUniqueId, props);
 680             }
 681
 682             if (componentInstancesInputs != null && componentInstancesInputs.containsKey(instanceUniqueId)) {
 683                 addComponentInstanceInputs(dataTypes, componentInstancesInputs, instanceUniqueId,
 684                         props);
 685             }
 686             if (!props.isEmpty()) {
 687                 nodeTemplate.setProperties(props);
 688             }
 689
 690             List<GroupInstance> groupInstances = componentInstance.getGroupInstances();
 691             if (groupInstances != null) {
 692                 if (groupsMap == null) {
 693                     groupsMap = new HashMap<>();
 694                 }
 695                 for (GroupInstance groupInst : groupInstances) {
 696                     boolean addToTosca = true;
 697
 698                     List<String> artifacts = groupInst.getArtifacts();
 699                     if (artifacts == null || artifacts.isEmpty()) {
 700                         addToTosca = false;
 701                     }
 702
 703                     if (addToTosca) {
 704                         ToscaGroupTemplate toscaGroup = groupExportParser.getToscaGroupTemplate(groupInst, componentInstance.getInvariantName());
 705                         groupsMap.put(groupInst.getName(), toscaGroup);
 706                     }
 707                 }
 708             }
 709
 710             nodeTemplates.put(componentInstance.getName(), nodeTemplate);
 711         }
 712         if (groupsMap != null) {
 713             log.debug("instance groups added");
 714             topologyTemplate.addGroups(groupsMap);
 715         }
 716         if (component.getComponentType() == ComponentTypeEnum.SERVICE && isNotEmpty(((Service) component).getForwardingPaths())) {
 717             log.debug("Starting converting paths for component {}, name {}", component.getUniqueId(),
 718                     component.getName());
 719             ForwardingPathToscaUtil.addForwardingPaths((Service) component, nodeTemplates, capabilityRequirementConverter, componentCache, toscaOperationFacade);
 720             log.debug("Finished converting paths for component {}, name {}", component.getUniqueId(),
 721                     component.getName());
 722         }
 723         if (convertNodeTemplatesRes == null) {
 724             convertNodeTemplatesRes = Either.left(nodeTemplates);
 725         }
 726         log.debug("finish convert topology template for {} for type {}", component.getUniqueId(),
 727                 component.getComponentType());
 728         return convertNodeTemplatesRes;
 729     }
 730
 731     private void addComponentInstanceInputs(Map<String, DataTypeDefinition> dataTypes,
 732                                             Map<String, List<ComponentInstanceInput>> componentInstancesInputs,
 733                                             String instanceUniqueId, Map<String, Object> props) {
 734
 735         List<ComponentInstanceInput> instanceInputsList = componentInstancesInputs.get(instanceUniqueId);
 736         if (instanceInputsList != null) {
 737             instanceInputsList.forEach(input -> {
 738
 739                 Supplier<String> supplier = () -> input.getValue() != null && !input.getValue().isEmpty()
 740                         ? input.getValue() : input.getDefaultValue();
 741                         propertyConvertor.convertAndAddValue(dataTypes, props, input, supplier);
 742             });
 743         }
 744     }
 745
 746     private void addPropertiesOfComponentInstance(
 747             Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
 748             Map<String, DataTypeDefinition> dataTypes, String instanceUniqueId,
 749             Map<String, Object> props) {
 750
 751         if (isNotEmpty(componentInstancesProperties)) {
 752             componentInstancesProperties.get(instanceUniqueId)
 753                     // Converts and adds each value to property map
 754                     .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
 755                             prop::getValue));
 756         }
 757     }
 758
 759     private void addPropertiesOfParentComponent(Map<String, DataTypeDefinition> dataTypes,
 760                                                 Component componentOfInstance, Map<String, Object> props) {
 761
 762         List<PropertyDefinition> componentProperties = ((Resource) componentOfInstance).getProperties();
 763         if (isNotEmpty(componentProperties)) {
 764             componentProperties.stream()
 765                     // Filters out properties with empty default values
 766                     .filter(prop -> isNotEmpty(prop.getDefaultValue()))
 767                     // Converts and adds each value to property map
 768                     .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
 769                             prop::getDefaultValue));
 770         }
 771     }
 772
 773     private ToscaNodeType createNodeType(Component component) {
 774         ToscaNodeType toscaNodeType = new ToscaNodeType();
 775         if (ModelConverter.isAtomicComponent(component)) {
 776             if (((Resource) component).getDerivedFrom() != null) {
 777                 toscaNodeType.setDerived_from(((Resource) component).getDerivedFrom().get(0));
 778             }
 779             toscaNodeType.setDescription(component.getDescription());
 780         } else {
 781             String derivedFrom = null != component.getDerivedFromGenericType() ? component.getDerivedFromGenericType()
 782                     : "tosca.nodes.Root";
 783             toscaNodeType.setDerived_from(derivedFrom);
 784         }
 785         return toscaNodeType;
 786     }
 787
 788     private Either<Map<String, ToscaNodeType>, ToscaError> createProxyNodeTypes(Map<String, Component> componentCache ,Component container  ) {
 789
 790         Map<String, ToscaNodeType> nodeTypesMap = new HashMap<>();
 791         Either<Map<String, ToscaNodeType>, ToscaError> res = Either.left(nodeTypesMap);
 792
 793         List<ComponentInstance> componentInstances = container.getComponentInstances();
 794
 795         if (componentInstances == null || componentInstances.isEmpty()) {
 796             return res;
 797         }
 798         Map<String, ComponentInstance> serviceProxyInstanceList = new HashMap<>();
 799         List<ComponentInstance> proxyInst = componentInstances.stream()
 800                 .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceProxy.name()))
 801                 .collect(Collectors.toList());
 802         if (proxyInst != null && !proxyInst.isEmpty()) {
 803             for (ComponentInstance inst : proxyInst) {
 804                 serviceProxyInstanceList.put(inst.getToscaComponentName(), inst);
 805             }
 806         }
 807
 808         if (serviceProxyInstanceList.isEmpty()) {
 809             return res;
 810         }
 811         ComponentParametersView filter = new ComponentParametersView(true);
 812         filter.setIgnoreCapabilities(false);
 813         filter.setIgnoreComponentInstances(false);
 814         Either<Resource, StorageOperationStatus> serviceProxyOrigin = toscaOperationFacade
 815                 .getLatestByName("serviceProxy");
 816         if (serviceProxyOrigin.isRight()) {
 817             log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
 818                     serviceProxyOrigin.right().value());
 819             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 820         }
 821         Component origComponent = serviceProxyOrigin.left().value();
 822
 823         for (Entry<String, ComponentInstance> entryProxy : serviceProxyInstanceList.entrySet()) {
 824             Component serviceComponent = null;
 825             ComponentParametersView componentParametersView = new ComponentParametersView();
 826             componentParametersView.disableAll();
 827             componentParametersView.setIgnoreCategories(false);
 828             Either<Component, StorageOperationStatus> service = toscaOperationFacade
 829                     .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
 830             if (service.isRight()) {
 831                 log.debug("Failed to fetch resource with id {} for instance {}", entryProxy.getValue().getSourceModelUid(),  entryProxy.getValue().getName());
 832             } else {
 833                 serviceComponent = service.left().value();
 834             }
 835
 836             ToscaNodeType toscaNodeType = createProxyNodeType(componentCache , origComponent, serviceComponent, entryProxy.getValue());
 837             nodeTypesMap.put(entryProxy.getKey(), toscaNodeType);
 838         }
 839
 840         return Either.left(nodeTypesMap);
 841     }
 842
 843     private ToscaNodeType createProxyNodeType(Map<String, Component> componentCache , Component origComponent, Component proxyComponent,
 844             ComponentInstance instance) {
 845         ToscaNodeType toscaNodeType = new ToscaNodeType();
 846         String derivedFrom = ((Resource) origComponent).getToscaResourceName();
 847
 848         toscaNodeType.setDerived_from(derivedFrom);
 849         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 850         if (dataTypesEither.isRight()) {
 851             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
 852         }
 853         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 854         Map<String, ToscaCapability> capabilities = this.capabilityRequirementConverter
 855                 .convertProxyCapabilities( componentCache ,origComponent, proxyComponent, instance, dataTypes);
 856
 857         toscaNodeType.setCapabilities(capabilities);
 858
 859         return toscaNodeType;
 860     }
 861
 862     private Either<ToscaNodeTemplate, ToscaError> convertComponentInstanceRequirements(Component component,
 863             ComponentInstance componentInstance, List<RequirementCapabilityRelDef> relations,
 864             ToscaNodeTemplate nodeTypeTemplate, Component originComponent, Map<String, Component> componentCache) {
 865
 866         List<Map<String, ToscaTemplateRequirement>> toscaRequirements = new ArrayList<>();
 867         if (!addRequirements(component, componentInstance, relations, originComponent, toscaRequirements, componentCache)) {
 868             log.debug("Failed to convert component instance requirements for the component instance {}. ",
 869                     componentInstance.getName());
 870             return Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
 871         }
 872         if (!toscaRequirements.isEmpty()) {
 873             nodeTypeTemplate.setRequirements(toscaRequirements);
 874         }
 875         log.debug("Finished to convert requirements for the node type {} ", componentInstance.getName());
 876         return Either.left(nodeTypeTemplate);
 877     }
 878
 879     private boolean addRequirements(Component component, ComponentInstance componentInstance,
 880             List<RequirementCapabilityRelDef> relations, Component originComponent,
 881             List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Map<String, Component> componentCache) {
 882         List<RequirementCapabilityRelDef> filteredRelations = relations.stream()
 883                 .filter(p -> componentInstance.getUniqueId().equals(p.getFromNode())).collect(Collectors.toList());
 884         return isEmpty(filteredRelations) ||
 885                 filteredRelations.stream()
 886                         .allMatch(rel -> addRequirement(componentInstance, originComponent, component.getComponentInstances(), rel, toscaRequirements, componentCache));
 887     }
 888
 889     private boolean addRequirement(ComponentInstance fromInstance, Component fromOriginComponent,
 890             List<ComponentInstance> instancesList, RequirementCapabilityRelDef rel,
 891             List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Map<String, Component> componentCache) {
 892
 893         boolean result = true;
 894         Map<String, List<RequirementDefinition>> reqMap = fromOriginComponent.getRequirements();
 895         RelationshipInfo reqAndRelationshipPair = rel.getRelationships().get(0).getRelation();
 896         Either<Component, StorageOperationStatus> getOriginRes = null;
 897         Optional<RequirementDefinition> reqOpt = Optional.empty();
 898         Component toOriginComponent = null;
 899         Optional<CapabilityDefinition> capOpt = Optional.empty();
 900
 901         ComponentInstance toInstance = instancesList.stream().filter(i -> rel.getToNode().equals(i.getUniqueId()))
 902                 .findFirst().orElse(null);
 903         if (toInstance == null) {
 904             log.debug("Failed to find a relation from the node {} to the node {}", fromInstance.getName(),
 905                     rel.getToNode());
 906             result = false;
 907         }
 908         if (result) {
 909             reqOpt = findRequirement(fromOriginComponent, reqMap, reqAndRelationshipPair, fromInstance.getUniqueId());
 910             if (!reqOpt.isPresent()) {
 911                 log.debug("Failed to find a requirement with uniqueId {} on a component with uniqueId {}",
 912                         reqAndRelationshipPair.getRequirementUid(), fromOriginComponent.getUniqueId());
 913                 result = false;
 914             }
 915         }
 916         if (result) {
 917             ComponentParametersView filter = new ComponentParametersView(true);
 918             filter.setIgnoreComponentInstances(false);
 919             filter.setIgnoreCapabilities(false);
 920             filter.setIgnoreGroups(false);
 921             getOriginRes = toscaOperationFacade.getToscaElement(toInstance.getActualComponentUid(), filter);
 922             if (getOriginRes.isRight()) {
 923                 log.debug("Failed to build substituted name for the requirement {}. Failed to get an origin component with uniqueId {}",
 924                         reqOpt.get().getName(), toInstance.getActualComponentUid());
 925                 result = false;
 926             }
 927         }
 928         if (result) {
 929             toOriginComponent = getOriginRes.left().value();
 930             capOpt = toOriginComponent.getCapabilities().get(reqOpt.get().getCapability()).stream()
 931                     .filter(c -> isCapabilityBelongToRelation(reqAndRelationshipPair, c)).findFirst();
 932             if (!capOpt.isPresent()) {
 933                 capOpt = findCapability(reqAndRelationshipPair, toOriginComponent, fromOriginComponent, reqOpt.get());
 934                 if(!capOpt.isPresent()){
 935                 result = false;
 936                 log.debug("Failed to find a capability with name {} on a component with uniqueId {}",
 937                         reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 938                 }
 939             }
 940         }
 941         if (result) {
 942             result = buildAndAddRequirement(toscaRequirements, fromOriginComponent, toOriginComponent, capOpt.get(),
 943                     reqOpt.get(), reqAndRelationshipPair, toInstance, componentCache);
 944         }
 945         return result;
 946     }
 947
 948     private boolean isCapabilityBelongToRelation(RelationshipInfo reqAndRelationshipPair, CapabilityDefinition capability) {
 949         return capability.getName().equals(reqAndRelationshipPair.getCapability()) && (capability.getOwnerId() !=null && capability.getOwnerId().equals(reqAndRelationshipPair.getCapabilityOwnerId()));
 950     }
 951
 952     private Optional<CapabilityDefinition> findCapability(RelationshipInfo reqAndRelationshipPair, Component toOriginComponent, Component fromOriginComponent, RequirementDefinition requirement) {
 953         Optional<CapabilityDefinition> cap = toOriginComponent.getCapabilities().get(requirement.getCapability()).stream().filter(c -> c.getType().equals(requirement.getCapability())).findFirst();
 954         if (!cap.isPresent()) {
 955             log.debug("Failed to find a capability with name {} on a component with uniqueId {}", reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 956         }
 957         return cap;
 958     }
 959
 960     private boolean buildAndAddRequirement(List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Component fromOriginComponent, Component toOriginComponent, CapabilityDefinition capability, RequirementDefinition requirement, RelationshipInfo reqAndRelationshipPair, ComponentInstance toInstance, Map<String, Component> componentCache) {
 961         List<String> reducedPath = capability.getPath();
 962         if(capability.getOwnerId() !=null){
 963             reducedPath =   capabilityRequirementConverter.getReducedPathByOwner(capability.getPath() , capability.getOwnerId() );
 964         }
 965         Either<String, Boolean> buildCapNameRes = capabilityRequirementConverter.buildSubstitutedName(componentCache,
 966                 toOriginComponent, reducedPath, reqAndRelationshipPair.getCapability(), capability.getPreviousName());
 967         if (buildCapNameRes.isRight()) {
 968             log.debug(
 969                     "Failed to build a substituted capability name for the capability with name {} on a component with uniqueId {}",
 970                     reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 971             return false;
 972         }
 973         Either<String, Boolean> buildReqNameRes  = capabilityRequirementConverter.buildSubstitutedName(componentCache, fromOriginComponent,
 974                 requirement.getPath(), reqAndRelationshipPair.getRequirement(), requirement.getPreviousName());
 975         if (buildReqNameRes.isRight()) {
 976             log.debug(
 977                     "Failed to build a substituted requirement name for the requirement with name {} on a component with uniqueId {}",
 978                     reqAndRelationshipPair.getRequirement(), fromOriginComponent.getUniqueId());
 979             return false;
 980         }
 981         ToscaTemplateRequirement toscaRequirement = new ToscaTemplateRequirement();
 982         Map<String, ToscaTemplateRequirement> toscaReqMap = new HashMap<>();
 983         toscaRequirement.setNode(toInstance.getName());
 984         toscaRequirement.setCapability(buildCapNameRes.left().value());
 985         toscaReqMap.put(buildReqNameRes.left().value(), toscaRequirement);
 986         toscaRequirements.add(toscaReqMap);
 987         return true;
 988     }
 989
 990     private Optional<RequirementDefinition> findRequirement(Component fromOriginComponent, Map<String, List<RequirementDefinition>> reqMap, RelationshipInfo reqAndRelationshipPair,  String fromInstanceId) {
 991         for(List<RequirementDefinition> reqList: reqMap.values()){
 992             Optional<RequirementDefinition> reqOpt = reqList.stream().filter(r -> isRequirementBelongToRelation(fromOriginComponent, reqAndRelationshipPair, r, fromInstanceId)).findFirst();
 993             if(reqOpt.isPresent()){
 994                 return reqOpt;
 995             }
 996         }
 997         return Optional.empty();
 998     }
 999
1000     /**
1001      * Allows detecting the requirement belonging to the received relationship
1002      * The detection logic is: A requirement belongs to a relationship IF 1.The
1003      * name of the requirement equals to the "requirement" field of the
1004      * relation; AND 2. In case of a non-atomic resource, OwnerId of the
1005      * requirement equals to requirementOwnerId of the relation OR uniqueId of
1006      * toInstance equals to capabilityOwnerId of the relation
1007      */
1008     private boolean isRequirementBelongToRelation(Component originComponent, RelationshipInfo reqAndRelationshipPair, RequirementDefinition requirement, String fromInstanceId) {
1009         if (!StringUtils.equals(requirement.getName(), reqAndRelationshipPair.getRequirement())) {
1010             log.debug("Failed to find a requirement with name {} and  reqAndRelationshipPair {}",
1011                     requirement.getName(), reqAndRelationshipPair.getRequirement());
1012             return false;
1013         }
1014         return ModelConverter.isAtomicComponent(originComponent) ||
1015                 isRequirementBelongToOwner(reqAndRelationshipPair, requirement, fromInstanceId, originComponent);
1016     }
1017
1018     private boolean isRequirementBelongToOwner(RelationshipInfo reqAndRelationshipPair, RequirementDefinition requirement, String fromInstanceId, Component originComponent) {
1019         return StringUtils.equals(requirement.getOwnerId(), reqAndRelationshipPair.getRequirementOwnerId()) || (isCvfc(originComponent) && StringUtils.equals(fromInstanceId, reqAndRelationshipPair.getRequirementOwnerId()));
1020     }
1021
1022     private boolean isCvfc(Component component) {
1023         return component.getComponentType() == ComponentTypeEnum.RESOURCE &&
1024                 ((Resource) component).getResourceType() == ResourceTypeEnum.CVFC;
1025     }
1026
1027     private Either<SubstitutionMapping, ToscaError> convertCapabilities(Component component,
1028             SubstitutionMapping substitutionMappings, Map<String, Component> componentCache) {
1029
1030         Either<SubstitutionMapping, ToscaError> result = Either.left(substitutionMappings);
1031         Either<Map<String, String[]>, ToscaError> toscaCapabilitiesRes = capabilityRequirementConverter
1032                 .convertSubstitutionMappingCapabilities(componentCache, component);
1033         if (toscaCapabilitiesRes.isRight()) {
1034             result = Either.right(toscaCapabilitiesRes.right().value());
1035             log.debug("Failed convert capabilities for the component {}. ", component.getName());
1036         } else if (isNotEmpty(toscaCapabilitiesRes.left().value())) {
1037             substitutionMappings.setCapabilities(toscaCapabilitiesRes.left().value());
1038             log.debug("Finish convert capabilities for the component {}. ", component.getName());
1039         }
1040         log.debug("Finished to convert capabilities for the component {}. ", component.getName());
1041         return result;
1042     }
1043
1044     private Either<ToscaNodeType, ToscaError> convertCapabilities(Map<String, Component> componentsCache, Component component, ToscaNodeType nodeType,
1045             Map<String, DataTypeDefinition> dataTypes) {
1046         Map<String, ToscaCapability> toscaCapabilities = capabilityRequirementConverter.convertCapabilities(componentsCache, component,
1047                 dataTypes);
1048         if (!toscaCapabilities.isEmpty()) {
1049             nodeType.setCapabilities(toscaCapabilities);
1050         }
1051         log.debug("Finish convert Capabilities for node type");
1052
1053         return Either.left(nodeType);
1054     }
1055
1056     private static class CustomRepresenter extends Representer {
1057         public CustomRepresenter() {
1058             super();
1059             // null representer is exceptional and it is stored as an instance
1060             // variable.
1061             this.nullRepresenter = new RepresentNull();
1062
1063         }
1064
1065         @Override
1066         protected NodeTuple representJavaBeanProperty(Object javaBean, Property property, Object propertyValue,
1067                 Tag customTag) {
1068             if (propertyValue == null) {
1069                 return null;
1070             } else {
1071                 // skip not relevant for Tosca property
1072                 if ("dependencies".equals(property.getName())) {
1073                     return null;
1074                 }
1075                 NodeTuple defaultNode = super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
1076
1077                 return "_defaultp_".equals(property.getName())
1078                         ? new NodeTuple(representData("default"), defaultNode.getValueNode()) : defaultNode;
1079             }
1080         }
1081
1082         @Override
1083         protected MappingNode representJavaBean(Set<Property> properties, Object javaBean) {
1084             // remove the bean type from the output yaml (!! ...)
1085             if (!classTags.containsKey(javaBean.getClass())) {
1086                 addClassTag(javaBean.getClass(), Tag.MAP);
1087             }
1088
1089             return super.representJavaBean(properties, javaBean);
1090         }
1091
1092         private class RepresentNull implements Represent {
1093             @Override
1094             public Node representData(Object data) {
1095                 // possible values are here http://yaml.org/type/null.html
1096                 return representScalar(Tag.NULL, "");
1097             }
1098         }
1099     }
1100
1101     private static class UnsortedPropertyUtils extends PropertyUtils {
1102         @Override
1103         protected Set<Property> createPropertySet(Class type, BeanAccess bAccess)
1104                 throws IntrospectionException {
1105             Collection<Property> fields = getPropertiesMap(type, BeanAccess.FIELD).values();
1106             return new LinkedHashSet<>(fields);
1107         }
1108     }
1109
1110 }
1111