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                                                                             boolean isAssociatedResourceComponent) {
 156         if (null == DEFAULT_IMPORTS) {
 157             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 158             return Either.right(ToscaError.GENERAL_ERROR);
 159         }
 160
 161         ToscaTemplate toscaTemplate = new ToscaTemplate(TOSCA_VERSION);
 162         toscaTemplate.setImports(new ArrayList<>(DEFAULT_IMPORTS));
 163         Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
 164         Either<ToscaTemplate, ToscaError> toscaTemplateRes = convertInterfaceNodeType(new HashMap<>(), component,
 165                 toscaTemplate, nodeTypes, isAssociatedResourceComponent);
 166         if (toscaTemplateRes.isRight()) {
 167             return Either.right(toscaTemplateRes.right().value());
 168         }
 169
 170         toscaTemplate = toscaTemplateRes.left().value();
 171         ToscaRepresentation toscaRepresentation = this.createToscaRepresentation(toscaTemplate);
 172         return Either.left(toscaRepresentation);
 173     }
 174
 175     public ToscaRepresentation createToscaRepresentation(ToscaTemplate toscaTemplate) {
 176         CustomRepresenter representer = new CustomRepresenter();
 177         DumperOptions options = new DumperOptions();
 178         options.setAllowReadOnlyProperties(false);
 179         options.setPrettyFlow(true);
 180
 181         options.setDefaultFlowStyle(FlowStyle.FLOW);
 182         options.setCanonical(false);
 183
 184         representer.addClassTag(toscaTemplate.getClass(), Tag.MAP);
 185
 186         representer.setPropertyUtils(new UnsortedPropertyUtils());
 187         Yaml yaml = new Yaml(representer, options);
 188
 189         String yamlAsString = yaml.dumpAsMap(toscaTemplate);
 190
 191         StringBuilder sb = new StringBuilder();
 192         sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactHeader());
 193         sb.append(yamlAsString);
 194         sb.append(ConfigurationManager.getConfigurationManager().getConfiguration().getHeatEnvArtifactFooter());
 195
 196         ToscaRepresentation toscaRepresentation = new ToscaRepresentation();
 197         toscaRepresentation.setMainYaml(sb.toString());
 198         toscaRepresentation.setDependencies(toscaTemplate.getDependencies());
 199
 200         return toscaRepresentation;
 201     }
 202
 203     public Either<ToscaTemplate, ToscaError> getDependencies(Component component) {
 204         ToscaTemplate toscaTemplate = new ToscaTemplate(null);
 205         Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports = fillImports(component,
 206                 toscaTemplate);
 207         if (fillImports.isRight()) {
 208             return Either.right(fillImports.right().value());
 209         }
 210         return Either.left(fillImports.left().value().left);
 211     }
 212
 213     private Either<ToscaTemplate, ToscaError> convertToToscaTemplate(Component component) {
 214         if (null == DEFAULT_IMPORTS) {
 215             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 216             return Either.right(ToscaError.GENERAL_ERROR);
 217         }
 218
 219         log.trace("start tosca export for {}", component.getUniqueId());
 220         ToscaTemplate toscaTemplate = new ToscaTemplate(TOSCA_VERSION);
 221
 222         toscaTemplate.setMetadata(convertMetadata(component));
 223         toscaTemplate.setImports(new ArrayList<>(DEFAULT_IMPORTS));
 224         Map<String, ToscaNodeType> nodeTypes = new HashMap<>();
 225         if (ModelConverter.isAtomicComponent(component)) {
 226             log.trace("convert component as node type");
 227             return convertNodeType(new HashMap<>(), component, toscaTemplate, nodeTypes);
 228         } else {
 229             log.trace("convert component as topology template");
 230             return convertToscaTemplate(component, toscaTemplate);
 231         }
 232
 233     }
 234
 235     private Either<ToscaTemplate, ToscaError> convertToscaTemplate(Component component, ToscaTemplate toscaNode) {
 236
 237         Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> importsRes = fillImports(component,
 238                 toscaNode);
 239         if (importsRes.isRight()) {
 240             return Either.right(importsRes.right().value());
 241         }
 242         toscaNode = importsRes.left().value().left;
 243         Map<String, Component> componentCache = importsRes.left().value().right;
 244         Either<Map<String, ToscaNodeType>, ToscaError> nodeTypesMapEither = createProxyNodeTypes(componentCache , component );
 245         if (nodeTypesMapEither.isRight()) {
 246             log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
 247                     nodeTypesMapEither.right().value());
 248             return Either.right(nodeTypesMapEither.right().value());
 249         }
 250         Map<String, ToscaNodeType> nodeTypesMap = nodeTypesMapEither.left().value();
 251         if (nodeTypesMap != null && !nodeTypesMap.isEmpty()) {
 252             toscaNode.setNode_types(nodeTypesMap);
 253         }
 254
 255
 256         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 257         if (dataTypesEither.isRight()) {
 258             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
 259             return Either.right(ToscaError.GENERAL_ERROR);
 260         }
 261         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 262         ToscaTopolgyTemplate topologyTemplate = new ToscaTopolgyTemplate();
 263         List<InputDefinition> inputDef = component.getInputs();
 264         Map<String, ToscaProperty> inputs = inputConverter.convertInputs(inputDef, dataTypes);
 265
 266         if (!inputs.isEmpty()) {
 267             topologyTemplate.setInputs(inputs);
 268         }
 269
 270         List<ComponentInstance> componentInstances = component.getComponentInstances();
 271         Map<String, List<ComponentInstanceProperty>> componentInstancesProperties = component
 272                 .getComponentInstancesProperties();
 273         if (componentInstances != null && !componentInstances.isEmpty()) {
 274
 275             Either<Map<String, ToscaNodeTemplate>, ToscaError> nodeTemplates = convertNodeTemplates(component,
 276                     componentInstances, componentInstancesProperties, componentCache, dataTypes, topologyTemplate);
 277             if (nodeTemplates.isRight()) {
 278                 return Either.right(nodeTemplates.right().value());
 279             }
 280             log.debug("node templates converted");
 281
 282             topologyTemplate.setNode_templates(nodeTemplates.left().value());
 283         }
 284
 285
 286         addGroupsToTopologyTemplate(component, topologyTemplate);
 287
 288         try {
 289              addPoliciesToTopologyTemplate(component, topologyTemplate);
 290             } catch (SdcResourceNotFoundException e) {
 291                   log.debug("Fail to add policies to topology template:",e);
 292                   Either.right(ToscaError.GENERAL_ERROR);
 293             }
 294
 295
 296         SubstitutionMapping substitutionMapping = new SubstitutionMapping();
 297         String toscaResourceName;
 298         switch (component.getComponentType()) {
 299         case RESOURCE:
 300             toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
 301                     .getMetadataDataDefinition()).getToscaResourceName();
 302             break;
 303         case SERVICE:
 304             toscaResourceName = SERVICE_NODE_TYPE_PREFIX
 305                     + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
 306             break;
 307         default:
 308             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 309             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 310         }
 311         substitutionMapping.setNode_type(toscaResourceName);
 312
 313         Either<SubstitutionMapping, ToscaError> capabilities = convertCapabilities(component, substitutionMapping, componentCache);
 314         if (capabilities.isRight()) {
 315             return Either.right(capabilities.right().value());
 316         }
 317         substitutionMapping = capabilities.left().value();
 318
 319         Either<SubstitutionMapping, ToscaError> requirements = capabilityRequirementConverter
 320                 .convertSubstitutionMappingRequirements(componentCache, component, substitutionMapping);
 321         if (requirements.isRight()) {
 322             return Either.right(requirements.right().value());
 323         }
 324         substitutionMapping = requirements.left().value();
 325
 326         topologyTemplate.setSubstitution_mappings(substitutionMapping);
 327
 328         toscaNode.setTopology_template(topologyTemplate);
 329         return Either.left(toscaNode);
 330     }
 331
 332       private void addGroupsToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate) {
 333
 334
 335             Map<String, ToscaGroupTemplate> groups = groupExportParser.getGroups(component);
 336             if(groups!= null) {
 337                   topologyTemplate.addGroups(groups);
 338             }
 339       }
 340
 341       private void addPoliciesToTopologyTemplate(Component component, ToscaTopolgyTemplate topologyTemplate)
 342                   throws SdcResourceNotFoundException {
 343             Map<String, ToscaPolicyTemplate> policies = policyExportParser.getPolicies(component);
 344             if(policies!= null) {
 345                   topologyTemplate.addPolicies(policies);
 346             }
 347       }
 348
 349     private ToscaMetadata convertMetadata(Component component) {
 350         return convertMetadata(component, false, null);
 351     }
 352
 353     private ToscaMetadata convertMetadata(Component component, boolean isInstance,
 354             ComponentInstance componentInstance) {
 355         ToscaMetadata toscaMetadata = new ToscaMetadata();
 356         toscaMetadata.setInvariantUUID(component.getInvariantUUID());
 357         toscaMetadata.setUUID(component.getUUID());
 358         toscaMetadata.setDescription(component.getDescription());
 359         toscaMetadata.setName(component.getComponentMetadataDefinition().getMetadataDataDefinition().getName());
 360
 361         List<CategoryDefinition> categories = component.getCategories();
 362         CategoryDefinition categoryDefinition = categories.get(0);
 363         toscaMetadata.setCategory(categoryDefinition.getName());
 364
 365         if (isInstance) {
 366             toscaMetadata.setVersion(component.getVersion());
 367             toscaMetadata.setCustomizationUUID(componentInstance.getCustomizationUUID());
 368             if (componentInstance.getSourceModelInvariant() != null
 369                     && !componentInstance.getSourceModelInvariant().isEmpty()) {
 370                 toscaMetadata.setVersion(componentInstance.getComponentVersion());
 371                 toscaMetadata.setSourceModelInvariant(componentInstance.getSourceModelInvariant());
 372                 toscaMetadata.setSourceModelUuid(componentInstance.getSourceModelUuid());
 373                 toscaMetadata.setSourceModelName(componentInstance.getSourceModelName());
 374                 toscaMetadata.setName(
 375                         componentInstance.getSourceModelName() + " " + OriginTypeEnum.ServiceProxy.getDisplayValue());
 376                 toscaMetadata.setDescription(componentInstance.getDescription());
 377             }
 378
 379         }
 380         switch (component.getComponentType()) {
 381         case RESOURCE:
 382             Resource resource = (Resource) component;
 383
 384             if (isInstance && componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy) {
 385                 toscaMetadata.setType(componentInstance.getOriginType().getDisplayValue());
 386             } else {
 387                 toscaMetadata.setType(resource.getResourceType().name());
 388             }
 389             toscaMetadata.setSubcategory(categoryDefinition.getSubcategories().get(0).getName());
 390             toscaMetadata.setResourceVendor(resource.getVendorName());
 391             toscaMetadata.setResourceVendorRelease(resource.getVendorRelease());
 392             toscaMetadata.setResourceVendorModelNumber(resource.getResourceVendorModelNumber());
 393             break;
 394         case SERVICE:
 395             Service service = (Service) component;
 396             toscaMetadata.setType(component.getComponentType().getValue());
 397             toscaMetadata.setServiceType(service.getServiceType());
 398             toscaMetadata.setServiceRole(service.getServiceRole());
 399             toscaMetadata.setEnvironmentContext(service.getEnvironmentContext());
 400             resolveInstantiationTypeAndSetItToToscaMetaData(toscaMetadata, service);
 401             if (!isInstance) {
 402                 // DE268546
 403                 toscaMetadata.setServiceEcompNaming(((Service) component).isEcompGeneratedNaming());
 404                 toscaMetadata.setEcompGeneratedNaming(((Service) component).isEcompGeneratedNaming());
 405                 toscaMetadata.setNamingPolicy(((Service) component).getNamingPolicy());
 406             }
 407             break;
 408         default:
 409             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 410         }
 411         return toscaMetadata;
 412     }
 413
 414       private void resolveInstantiationTypeAndSetItToToscaMetaData(ToscaMetadata toscaMetadata, Service service) {
 415             if (service.getInstantiationType() != null) {
 416                         toscaMetadata.setInstantiationType(service.getInstantiationType());
 417             }
 418             else {
 419                         toscaMetadata.setInstantiationType(StringUtils.EMPTY);
 420             }
 421       }
 422
 423     private Either<ImmutablePair<ToscaTemplate, Map<String, Component>>, ToscaError> fillImports(Component component,
 424             ToscaTemplate toscaTemplate) {
 425
 426         if (null == DEFAULT_IMPORTS) {
 427             log.debug(FAILED_TO_GET_DEFAULT_IMPORTS_CONFIGURATION);
 428             return Either.right(ToscaError.GENERAL_ERROR);
 429         }
 430         Map<String, Component> componentCache = new HashMap<>();
 431
 432         if (!ModelConverter.isAtomicComponent(component)) {
 433             List<ComponentInstance> componentInstances = component.getComponentInstances();
 434             if (componentInstances != null && !componentInstances.isEmpty()) {
 435
 436                 List<Map<String, Map<String, String>>> additionalImports = toscaTemplate.getImports() == null
 437                         ? new ArrayList<>(DEFAULT_IMPORTS) : new ArrayList<>(toscaTemplate.getImports());
 438
 439                 List<Triple<String, String, Component>> dependecies = new ArrayList<>();
 440
 441                 Map<String, ArtifactDefinition> toscaArtifacts = component.getToscaArtifacts();
 442                 ArtifactDefinition artifactDefinition = toscaArtifacts.get(ToscaExportHandler.ASSET_TOSCA_TEMPLATE);
 443
 444                 Map<String, Map<String, String>> importsListMember = new HashMap<>();
 445                 Map<String, String> interfaceFiles = new HashMap<>();
 446                 interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactDefinition.getArtifactName()));
 447                 StringBuilder keyNameBuilder = new StringBuilder();
 448                 keyNameBuilder.append(component.getComponentType().toString().toLowerCase());
 449                 keyNameBuilder.append("-");
 450                 keyNameBuilder.append(component.getName());
 451                 keyNameBuilder.append("-interface");
 452                 importsListMember.put(keyNameBuilder.toString(), interfaceFiles);
 453                 additionalImports.add(importsListMember);
 454
 455                 componentInstances.forEach(ci -> createDependency(componentCache, additionalImports, dependecies, ci));
 456                 toscaTemplate.setDependencies(dependecies);
 457                 toscaTemplate.setImports(additionalImports);
 458             }
 459         } else {
 460             log.debug("currently imports supported for VF and service only");
 461         }
 462         return Either.left(new ImmutablePair<>(toscaTemplate, componentCache));
 463     }
 464
 465     private void createDependency(Map<String, Component> componentCache, List<Map<String, Map<String, String>>> imports,
 466             List<Triple<String, String, Component>> dependecies, ComponentInstance ci) {
 467         Map<String, String> files = new HashMap<>();
 468         Map<String, Map<String, String>> importsListMember = new HashMap<>();
 469         StringBuilder keyNameBuilder;
 470
 471         Component componentRI = componentCache.get(ci.getComponentUid());
 472         if (componentRI == null) {
 473             // all resource must be only once!
 474             Either<Component, StorageOperationStatus> resource = toscaOperationFacade
 475                     .getToscaFullElement(ci.getComponentUid());
 476             if ((resource.isRight()) && (log.isDebugEnabled())) {
 477                 log.debug("Failed to fetch resource with id {} for instance {}",ci.getComponentUid() ,ci.getUniqueId());
 478                 return ;
 479             }
 480
 481             Component fetchedComponent = resource.left().value();
 482             componentCache.put(fetchedComponent.getUniqueId(), fetchedComponent);
 483
 484             if (ci.getOriginType() == OriginTypeEnum.ServiceProxy){
 485                 Either<Component, StorageOperationStatus> sourceService = toscaOperationFacade
 486                         .getToscaFullElement(ci.getSourceModelUid());
 487                 if (sourceService.isRight() && (log.isDebugEnabled())) {
 488                     log.debug("Failed to fetch source service with id {} for proxy {}", ci.getSourceModelUid(), ci.getUniqueId());
 489                 }
 490                 Component fetchedSource = sourceService.left().value();
 491                 componentCache.put(fetchedSource.getUniqueId(), fetchedSource);
 492             }
 493
 494             componentRI = fetchedComponent;
 495
 496             Map<String, ArtifactDefinition> toscaArtifacts = componentRI.getToscaArtifacts();
 497             ArtifactDefinition artifactDefinition = toscaArtifacts.get(ASSET_TOSCA_TEMPLATE);
 498             if (artifactDefinition != null) {
 499                 String artifactName = artifactDefinition.getArtifactName();
 500                 files.put(IMPORTS_FILE_KEY, artifactName);
 501                 keyNameBuilder = new StringBuilder();
 502                 keyNameBuilder.append(fetchedComponent.getComponentType().toString().toLowerCase());
 503                 keyNameBuilder.append("-");
 504                 keyNameBuilder.append(ci.getComponentName());
 505                 importsListMember.put(keyNameBuilder.toString(), files);
 506                 imports.add(importsListMember);
 507                 dependecies.add(new ImmutableTriple<>(artifactName,
 508                         artifactDefinition.getEsId(), fetchedComponent));
 509
 510                 if (!ModelConverter.isAtomicComponent(componentRI)) {
 511                     importsListMember = new HashMap<>();
 512                     Map<String, String> interfaceFiles = new HashMap<>();
 513                     interfaceFiles.put(IMPORTS_FILE_KEY, getInterfaceFilename(artifactName));
 514                     keyNameBuilder.append("-interface");
 515                     importsListMember.put(keyNameBuilder.toString(), interfaceFiles);
 516                     imports.add(importsListMember);
 517                 }
 518             }
 519         }
 520     }
 521
 522     public static String getInterfaceFilename(String artifactName) {
 523         return artifactName.substring(0, artifactName.lastIndexOf('.')) + ToscaExportHandler.TOSCA_INTERFACE_NAME;
 524     }
 525
 526     private Either<ToscaTemplate, ToscaError> convertNodeType(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
 527             Map<String, ToscaNodeType> nodeTypes) {
 528         log.debug("start convert node type for {}", component.getUniqueId());
 529         ToscaNodeType toscaNodeType = createNodeType(component);
 530
 531         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 532         if (dataTypesEither.isRight()) {
 533             log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
 534             return Either.right(ToscaError.GENERAL_ERROR);
 535         }
 536
 537         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 538         Either<ToscaNodeType, ToscaError> properties = propertyConvertor.convertProperties(component, toscaNodeType,
 539                 dataTypes);
 540         if (properties.isRight()) {
 541             return Either.right(properties.right().value());
 542         }
 543         toscaNodeType = properties.left().value();
 544         log.debug("Properties converted for {}", component.getUniqueId());
 545
 546         // Extracted to method for code reuse
 547         return convertReqCapAndTypeName(componentsCache, component, toscaNode, nodeTypes, toscaNodeType, dataTypes);
 548     }
 549
 550     private Either<ToscaTemplate, ToscaError> convertInterfaceNodeType(Map<String, Component> componentsCache,
 551                                                                        Component component, ToscaTemplate toscaNode,
 552                                                                        Map<String, ToscaNodeType> nodeTypes,
 553                                                                        boolean isAssociatedResourceComponent) {
 554         log.debug("start convert node type for {}", component.getUniqueId());
 555         ToscaNodeType toscaNodeType = createNodeType(component);
 556         toscaNode.setInterface_types(addInterfaceTypeElement(component));
 557         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 558         if (dataTypesEither.isRight()) {
 559             log.debug("Failed to fetch all data types :", dataTypesEither.right().value());
 560             return Either.right(ToscaError.GENERAL_ERROR);
 561         }
 562
 563         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 564
 565         List<InputDefinition> inputDef = component.getInputs();
 566         Map<String, ToscaProperty> inputs = new HashMap<>();
 567         addInterfaceDefinitionElement(component, toscaNodeType, isAssociatedResourceComponent);
 568         if (inputDef != null) {
 569             inputDef.forEach(i -> {
 570                 ToscaProperty property = propertyConvertor.convertProperty(dataTypes, i, false);
 571                 inputs.put(i.getName(), property);
 572             });
 573             if (!inputs.isEmpty()) {
 574                 toscaNodeType.setProperties(inputs);
 575             }
 576         }
 577         return convertReqCapAndTypeName(componentsCache, component, toscaNode, nodeTypes, toscaNodeType, dataTypes);
 578     }
 579
 580     private Either<ToscaTemplate, ToscaError> convertReqCapAndTypeName(Map<String, Component> componentsCache, Component component, ToscaTemplate toscaNode,
 581             Map<String, ToscaNodeType> nodeTypes, ToscaNodeType toscaNodeType,
 582             Map<String, DataTypeDefinition> dataTypes) {
 583         Either<ToscaNodeType, ToscaError> capabilities = convertCapabilities(componentsCache, component, toscaNodeType, dataTypes);
 584         if (capabilities.isRight()) {
 585             return Either.right(capabilities.right().value());
 586         }
 587         toscaNodeType = capabilities.left().value();
 588         log.debug("Capabilities converted for {}", component.getUniqueId());
 589
 590         Either<ToscaNodeType, ToscaError> requirements = capabilityRequirementConverter.convertRequirements(componentsCache, component,
 591                 toscaNodeType);
 592         if (requirements.isRight()) {
 593             return Either.right(requirements.right().value());
 594         }
 595         toscaNodeType = requirements.left().value();
 596         log.debug("Requirements converted for {}", component.getUniqueId());
 597
 598         String toscaResourceName;
 599         switch (component.getComponentType()) {
 600         case RESOURCE:
 601             toscaResourceName = ((ResourceMetadataDataDefinition) component.getComponentMetadataDefinition()
 602                     .getMetadataDataDefinition()).getToscaResourceName();
 603             break;
 604         case SERVICE:
 605             toscaResourceName = SERVICE_NODE_TYPE_PREFIX
 606                     + component.getComponentMetadataDefinition().getMetadataDataDefinition().getSystemName();
 607             break;
 608         default:
 609             log.debug(NOT_SUPPORTED_COMPONENT_TYPE, component.getComponentType());
 610             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 611         }
 612
 613         nodeTypes.put(toscaResourceName, toscaNodeType);
 614         toscaNode.setNode_types(nodeTypes);
 615         log.debug("finish convert node type for {}", component.getUniqueId());
 616         return Either.left(toscaNode);
 617     }
 618
 619     private Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplates(Component component,
 620             List<ComponentInstance> componentInstances,
 621             Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
 622             Map<String, Component> componentCache, Map<String, DataTypeDefinition> dataTypes,
 623             ToscaTopolgyTemplate topologyTemplate) {
 624
 625         Either<Map<String, ToscaNodeTemplate>, ToscaError> convertNodeTemplatesRes = null;
 626         log.debug("start convert topology template for {} for type {}", component.getUniqueId(),
 627                 component.getComponentType());
 628         Map<String, ToscaNodeTemplate> nodeTemplates = new HashMap<>();
 629         Map<String, List<ComponentInstanceInput>> componentInstancesInputs = component.getComponentInstancesInputs();
 630
 631         Map<String, ToscaGroupTemplate> groupsMap = null;
 632         for (ComponentInstance componentInstance : componentInstances) {
 633             ToscaNodeTemplate nodeTemplate = new ToscaNodeTemplate();
 634             nodeTemplate.setType(componentInstance.getToscaComponentName());
 635
 636             Either<Component, Boolean> originComponentRes = capabilityRequirementConverter
 637                     .getOriginComponent(componentCache, componentInstance);
 638             if (originComponentRes.isRight()) {
 639                 convertNodeTemplatesRes = Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
 640                 break;
 641             }
 642             Either<ToscaNodeTemplate, ToscaError> requirements = convertComponentInstanceRequirements(component,
 643                     componentInstance, component.getComponentInstancesRelations(), nodeTemplate,
 644                     originComponentRes.left().value(), componentCache);
 645             if (requirements.isRight()) {
 646                 convertNodeTemplatesRes = Either.right(requirements.right().value());
 647                 break;
 648             }
 649             String instanceUniqueId = componentInstance.getUniqueId();
 650             log.debug("Component instance Requirements converted for instance {}", instanceUniqueId);
 651
 652             nodeTemplate = requirements.left().value();
 653
 654             Component originalComponent = componentCache.get(componentInstance.getActualComponentUid());
 655
 656             if (componentInstance.getOriginType() == OriginTypeEnum.ServiceProxy){
 657                 Component componentOfProxy = componentCache.get(componentInstance.getComponentUid());
 658                 nodeTemplate.setMetadata(convertMetadata(componentOfProxy, true, componentInstance));
 659             } else {
 660                 nodeTemplate.setMetadata(convertMetadata(originalComponent, true, componentInstance));
 661             }
 662
 663             Either<ToscaNodeTemplate, ToscaError> capabilities = capabilityRequirementConverter
 664                     .convertComponentInstanceCapabilities(componentInstance, dataTypes, nodeTemplate);
 665             if (capabilities.isRight()) {
 666                 convertNodeTemplatesRes = Either.right(capabilities.right().value());
 667                 break;
 668             }
 669             log.debug("Component instance Capabilities converted for instance {}", instanceUniqueId);
 670
 671             nodeTemplate = capabilities.left().value();
 672             Map<String, Object> props = new HashMap<>();
 673
 674             if (originalComponent.getComponentType() == ComponentTypeEnum.RESOURCE) {
 675                 // Adds the properties of parent component to map
 676                 addPropertiesOfParentComponent(dataTypes, originalComponent, props);
 677             }
 678
 679             if (null != componentInstancesProperties && componentInstancesProperties.containsKey(instanceUniqueId)) {
 680                 addPropertiesOfComponentInstance(componentInstancesProperties, dataTypes,
 681                         instanceUniqueId, props);
 682             }
 683
 684             if (componentInstancesInputs != null && componentInstancesInputs.containsKey(instanceUniqueId)) {
 685                 addComponentInstanceInputs(dataTypes, componentInstancesInputs, instanceUniqueId,
 686                         props);
 687             }
 688             if (!props.isEmpty()) {
 689                 nodeTemplate.setProperties(props);
 690             }
 691
 692             List<GroupInstance> groupInstances = componentInstance.getGroupInstances();
 693             if (groupInstances != null) {
 694                 if (groupsMap == null) {
 695                     groupsMap = new HashMap<>();
 696                 }
 697                 for (GroupInstance groupInst : groupInstances) {
 698                     boolean addToTosca = true;
 699
 700                     List<String> artifacts = groupInst.getArtifacts();
 701                     if (artifacts == null || artifacts.isEmpty()) {
 702                         addToTosca = false;
 703                     }
 704
 705                     if (addToTosca) {
 706                         ToscaGroupTemplate toscaGroup = groupExportParser.getToscaGroupTemplate(groupInst, componentInstance.getInvariantName());
 707                         groupsMap.put(groupInst.getName(), toscaGroup);
 708                     }
 709                 }
 710             }
 711
 712             nodeTemplates.put(componentInstance.getName(), nodeTemplate);
 713         }
 714         if (groupsMap != null) {
 715             log.debug("instance groups added");
 716             topologyTemplate.addGroups(groupsMap);
 717         }
 718         if (component.getComponentType() == ComponentTypeEnum.SERVICE && isNotEmpty(((Service) component).getForwardingPaths())) {
 719             log.debug("Starting converting paths for component {}, name {}", component.getUniqueId(),
 720                     component.getName());
 721             ForwardingPathToscaUtil.addForwardingPaths((Service) component, nodeTemplates, capabilityRequirementConverter, componentCache, toscaOperationFacade);
 722             log.debug("Finished converting paths for component {}, name {}", component.getUniqueId(),
 723                     component.getName());
 724         }
 725         if (convertNodeTemplatesRes == null) {
 726             convertNodeTemplatesRes = Either.left(nodeTemplates);
 727         }
 728         log.debug("finish convert topology template for {} for type {}", component.getUniqueId(),
 729                 component.getComponentType());
 730         return convertNodeTemplatesRes;
 731     }
 732
 733     private void addComponentInstanceInputs(Map<String, DataTypeDefinition> dataTypes,
 734                                             Map<String, List<ComponentInstanceInput>> componentInstancesInputs,
 735                                             String instanceUniqueId, Map<String, Object> props) {
 736
 737         List<ComponentInstanceInput> instanceInputsList = componentInstancesInputs.get(instanceUniqueId);
 738         if (instanceInputsList != null) {
 739             instanceInputsList.forEach(input -> {
 740
 741                 Supplier<String> supplier = () -> input.getValue() != null && !input.getValue().isEmpty()
 742                         ? input.getValue() : input.getDefaultValue();
 743                         propertyConvertor.convertAndAddValue(dataTypes, props, input, supplier);
 744             });
 745         }
 746     }
 747
 748     private void addPropertiesOfComponentInstance(
 749             Map<String, List<ComponentInstanceProperty>> componentInstancesProperties,
 750             Map<String, DataTypeDefinition> dataTypes, String instanceUniqueId,
 751             Map<String, Object> props) {
 752
 753         if (isNotEmpty(componentInstancesProperties)) {
 754             componentInstancesProperties.get(instanceUniqueId)
 755                     // Converts and adds each value to property map
 756                     .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
 757                             prop::getValue));
 758         }
 759     }
 760
 761     private void addPropertiesOfParentComponent(Map<String, DataTypeDefinition> dataTypes,
 762                                                 Component componentOfInstance, Map<String, Object> props) {
 763
 764         List<PropertyDefinition> componentProperties = ((Resource) componentOfInstance).getProperties();
 765         if (isNotEmpty(componentProperties)) {
 766             componentProperties.stream()
 767                     // Filters out properties with empty default values
 768                     .filter(prop -> isNotEmpty(prop.getDefaultValue()))
 769                     // Converts and adds each value to property map
 770                     .forEach(prop -> propertyConvertor.convertAndAddValue(dataTypes, props, prop,
 771                             prop::getDefaultValue));
 772         }
 773     }
 774
 775     private ToscaNodeType createNodeType(Component component) {
 776         ToscaNodeType toscaNodeType = new ToscaNodeType();
 777         if (ModelConverter.isAtomicComponent(component)) {
 778             if (((Resource) component).getDerivedFrom() != null) {
 779                 toscaNodeType.setDerived_from(((Resource) component).getDerivedFrom().get(0));
 780             }
 781             toscaNodeType.setDescription(component.getDescription());
 782         } else {
 783             String derivedFrom = null != component.getDerivedFromGenericType() ? component.getDerivedFromGenericType()
 784                     : "tosca.nodes.Root";
 785             toscaNodeType.setDerived_from(derivedFrom);
 786         }
 787         return toscaNodeType;
 788     }
 789
 790     private Either<Map<String, ToscaNodeType>, ToscaError> createProxyNodeTypes(Map<String, Component> componentCache ,Component container  ) {
 791
 792         Map<String, ToscaNodeType> nodeTypesMap = new HashMap<>();
 793         Either<Map<String, ToscaNodeType>, ToscaError> res = Either.left(nodeTypesMap);
 794
 795         List<ComponentInstance> componentInstances = container.getComponentInstances();
 796
 797         if (componentInstances == null || componentInstances.isEmpty()) {
 798             return res;
 799         }
 800         Map<String, ComponentInstance> serviceProxyInstanceList = new HashMap<>();
 801         List<ComponentInstance> proxyInst = componentInstances.stream()
 802                 .filter(p -> p.getOriginType().name().equals(OriginTypeEnum.ServiceProxy.name()))
 803                 .collect(Collectors.toList());
 804         if (proxyInst != null && !proxyInst.isEmpty()) {
 805             for (ComponentInstance inst : proxyInst) {
 806                 serviceProxyInstanceList.put(inst.getToscaComponentName(), inst);
 807             }
 808         }
 809
 810         if (serviceProxyInstanceList.isEmpty()) {
 811             return res;
 812         }
 813         ComponentParametersView filter = new ComponentParametersView(true);
 814         filter.setIgnoreCapabilities(false);
 815         filter.setIgnoreComponentInstances(false);
 816         Either<Resource, StorageOperationStatus> serviceProxyOrigin = toscaOperationFacade
 817                 .getLatestByName("serviceProxy");
 818         if (serviceProxyOrigin.isRight()) {
 819             log.debug("Failed to fetch normative service proxy resource by tosca name, error {}",
 820                     serviceProxyOrigin.right().value());
 821             return Either.right(ToscaError.NOT_SUPPORTED_TOSCA_TYPE);
 822         }
 823         Component origComponent = serviceProxyOrigin.left().value();
 824
 825         for (Entry<String, ComponentInstance> entryProxy : serviceProxyInstanceList.entrySet()) {
 826             Component serviceComponent = null;
 827             ComponentParametersView componentParametersView = new ComponentParametersView();
 828             componentParametersView.disableAll();
 829             componentParametersView.setIgnoreCategories(false);
 830             Either<Component, StorageOperationStatus> service = toscaOperationFacade
 831                     .getToscaElement(entryProxy.getValue().getSourceModelUid(), componentParametersView);
 832             if (service.isRight()) {
 833                 log.debug("Failed to fetch resource with id {} for instance {}", entryProxy.getValue().getSourceModelUid(),  entryProxy.getValue().getName());
 834             } else {
 835                 serviceComponent = service.left().value();
 836             }
 837
 838             ToscaNodeType toscaNodeType = createProxyNodeType(componentCache , origComponent, serviceComponent, entryProxy.getValue());
 839             nodeTypesMap.put(entryProxy.getKey(), toscaNodeType);
 840         }
 841
 842         return Either.left(nodeTypesMap);
 843     }
 844
 845     private ToscaNodeType createProxyNodeType(Map<String, Component> componentCache , Component origComponent, Component proxyComponent,
 846             ComponentInstance instance) {
 847         ToscaNodeType toscaNodeType = new ToscaNodeType();
 848         String derivedFrom = ((Resource) origComponent).getToscaResourceName();
 849
 850         toscaNodeType.setDerived_from(derivedFrom);
 851         Either<Map<String, DataTypeDefinition>, TitanOperationStatus> dataTypesEither = dataTypeCache.getAll();
 852         if (dataTypesEither.isRight()) {
 853             log.debug("Failed to retrieve all data types {}", dataTypesEither.right().value());
 854         }
 855         Map<String, DataTypeDefinition> dataTypes = dataTypesEither.left().value();
 856         Map<String, ToscaCapability> capabilities = this.capabilityRequirementConverter
 857                 .convertProxyCapabilities( componentCache ,origComponent, proxyComponent, instance, dataTypes);
 858
 859         toscaNodeType.setCapabilities(capabilities);
 860
 861         return toscaNodeType;
 862     }
 863
 864     private Either<ToscaNodeTemplate, ToscaError> convertComponentInstanceRequirements(Component component,
 865             ComponentInstance componentInstance, List<RequirementCapabilityRelDef> relations,
 866             ToscaNodeTemplate nodeTypeTemplate, Component originComponent, Map<String, Component> componentCache) {
 867
 868         List<Map<String, ToscaTemplateRequirement>> toscaRequirements = new ArrayList<>();
 869         if (!addRequirements(component, componentInstance, relations, originComponent, toscaRequirements, componentCache)) {
 870             log.debug("Failed to convert component instance requirements for the component instance {}. ",
 871                     componentInstance.getName());
 872             return Either.right(ToscaError.NODE_TYPE_REQUIREMENT_ERROR);
 873         }
 874         if (!toscaRequirements.isEmpty()) {
 875             nodeTypeTemplate.setRequirements(toscaRequirements);
 876         }
 877         log.debug("Finished to convert requirements for the node type {} ", componentInstance.getName());
 878         return Either.left(nodeTypeTemplate);
 879     }
 880
 881     private boolean addRequirements(Component component, ComponentInstance componentInstance,
 882             List<RequirementCapabilityRelDef> relations, Component originComponent,
 883             List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Map<String, Component> componentCache) {
 884         List<RequirementCapabilityRelDef> filteredRelations = relations.stream()
 885                 .filter(p -> componentInstance.getUniqueId().equals(p.getFromNode())).collect(Collectors.toList());
 886         return isEmpty(filteredRelations) ||
 887                 filteredRelations.stream()
 888                         .allMatch(rel -> addRequirement(componentInstance, originComponent, component.getComponentInstances(), rel, toscaRequirements, componentCache));
 889     }
 890
 891     private boolean addRequirement(ComponentInstance fromInstance, Component fromOriginComponent,
 892             List<ComponentInstance> instancesList, RequirementCapabilityRelDef rel,
 893             List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Map<String, Component> componentCache) {
 894
 895         boolean result = true;
 896         Map<String, List<RequirementDefinition>> reqMap = fromOriginComponent.getRequirements();
 897         RelationshipInfo reqAndRelationshipPair = rel.getRelationships().get(0).getRelation();
 898         Either<Component, StorageOperationStatus> getOriginRes = null;
 899         Optional<RequirementDefinition> reqOpt = Optional.empty();
 900         Component toOriginComponent = null;
 901         Optional<CapabilityDefinition> capOpt = Optional.empty();
 902
 903         ComponentInstance toInstance = instancesList.stream().filter(i -> rel.getToNode().equals(i.getUniqueId()))
 904                 .findFirst().orElse(null);
 905         if (toInstance == null) {
 906             log.debug("Failed to find a relation from the node {} to the node {}", fromInstance.getName(),
 907                     rel.getToNode());
 908             result = false;
 909         }
 910         if (result) {
 911             reqOpt = findRequirement(fromOriginComponent, reqMap, reqAndRelationshipPair, fromInstance.getUniqueId());
 912             if (!reqOpt.isPresent()) {
 913                 log.debug("Failed to find a requirement with uniqueId {} on a component with uniqueId {}",
 914                         reqAndRelationshipPair.getRequirementUid(), fromOriginComponent.getUniqueId());
 915                 result = false;
 916             }
 917         }
 918         if (result) {
 919             ComponentParametersView filter = new ComponentParametersView(true);
 920             filter.setIgnoreComponentInstances(false);
 921             filter.setIgnoreCapabilities(false);
 922             filter.setIgnoreGroups(false);
 923             getOriginRes = toscaOperationFacade.getToscaElement(toInstance.getActualComponentUid(), filter);
 924             if (getOriginRes.isRight()) {
 925                 log.debug("Failed to build substituted name for the requirement {}. Failed to get an origin component with uniqueId {}",
 926                         reqOpt.get().getName(), toInstance.getActualComponentUid());
 927                 result = false;
 928             }
 929         }
 930         if (result) {
 931             toOriginComponent = getOriginRes.left().value();
 932             capOpt = toOriginComponent.getCapabilities().get(reqOpt.get().getCapability()).stream()
 933                     .filter(c -> isCapabilityBelongToRelation(reqAndRelationshipPair, c)).findFirst();
 934             if (!capOpt.isPresent()) {
 935                 capOpt = findCapability(reqAndRelationshipPair, toOriginComponent, fromOriginComponent, reqOpt.get());
 936                 if(!capOpt.isPresent()){
 937                 result = false;
 938                 log.debug("Failed to find a capability with name {} on a component with uniqueId {}",
 939                         reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 940                 }
 941             }
 942         }
 943         if (result) {
 944             result = buildAndAddRequirement(toscaRequirements, fromOriginComponent, toOriginComponent, capOpt.get(),
 945                     reqOpt.get(), reqAndRelationshipPair, toInstance, componentCache);
 946         }
 947         return result;
 948     }
 949
 950     private boolean isCapabilityBelongToRelation(RelationshipInfo reqAndRelationshipPair, CapabilityDefinition capability) {
 951         return capability.getName().equals(reqAndRelationshipPair.getCapability()) && (capability.getOwnerId() !=null && capability.getOwnerId().equals(reqAndRelationshipPair.getCapabilityOwnerId()));
 952     }
 953
 954     private Optional<CapabilityDefinition> findCapability(RelationshipInfo reqAndRelationshipPair, Component toOriginComponent, Component fromOriginComponent, RequirementDefinition requirement) {
 955         Optional<CapabilityDefinition> cap = toOriginComponent.getCapabilities().get(requirement.getCapability()).stream().filter(c -> c.getType().equals(requirement.getCapability())).findFirst();
 956         if (!cap.isPresent()) {
 957             log.debug("Failed to find a capability with name {} on a component with uniqueId {}", reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 958         }
 959         return cap;
 960     }
 961
 962     private boolean buildAndAddRequirement(List<Map<String, ToscaTemplateRequirement>> toscaRequirements, Component fromOriginComponent, Component toOriginComponent, CapabilityDefinition capability, RequirementDefinition requirement, RelationshipInfo reqAndRelationshipPair, ComponentInstance toInstance, Map<String, Component> componentCache) {
 963         List<String> reducedPath = capability.getPath();
 964         if(capability.getOwnerId() !=null){
 965             reducedPath =   capabilityRequirementConverter.getReducedPathByOwner(capability.getPath() , capability.getOwnerId() );
 966         }
 967         Either<String, Boolean> buildCapNameRes = capabilityRequirementConverter.buildSubstitutedName(componentCache,
 968                 toOriginComponent, reducedPath, reqAndRelationshipPair.getCapability(), capability.getPreviousName());
 969         if (buildCapNameRes.isRight()) {
 970             log.debug(
 971                     "Failed to build a substituted capability name for the capability with name {} on a component with uniqueId {}",
 972                     reqAndRelationshipPair.getCapability(), fromOriginComponent.getUniqueId());
 973             return false;
 974         }
 975         Either<String, Boolean> buildReqNameRes  = capabilityRequirementConverter.buildSubstitutedName(componentCache, fromOriginComponent,
 976                 requirement.getPath(), reqAndRelationshipPair.getRequirement(), requirement.getPreviousName());
 977         if (buildReqNameRes.isRight()) {
 978             log.debug(
 979                     "Failed to build a substituted requirement name for the requirement with name {} on a component with uniqueId {}",
 980                     reqAndRelationshipPair.getRequirement(), fromOriginComponent.getUniqueId());
 981             return false;
 982         }
 983         ToscaTemplateRequirement toscaRequirement = new ToscaTemplateRequirement();
 984         Map<String, ToscaTemplateRequirement> toscaReqMap = new HashMap<>();
 985         toscaRequirement.setNode(toInstance.getName());
 986         toscaRequirement.setCapability(buildCapNameRes.left().value());
 987         toscaReqMap.put(buildReqNameRes.left().value(), toscaRequirement);
 988         toscaRequirements.add(toscaReqMap);
 989         return true;
 990     }
 991
 992     private Optional<RequirementDefinition> findRequirement(Component fromOriginComponent, Map<String, List<RequirementDefinition>> reqMap, RelationshipInfo reqAndRelationshipPair,  String fromInstanceId) {
 993         for(List<RequirementDefinition> reqList: reqMap.values()){
 994             Optional<RequirementDefinition> reqOpt = reqList.stream().filter(r -> isRequirementBelongToRelation(fromOriginComponent, reqAndRelationshipPair, r, fromInstanceId)).findFirst();
 995             if(reqOpt.isPresent()){
 996                 return reqOpt;
 997             }
 998         }
 999         return Optional.empty();
1000     }
1001
1002     /**
1003      * Allows detecting the requirement belonging to the received relationship
1004      * The detection logic is: A requirement belongs to a relationship IF 1.The
1005      * name of the requirement equals to the "requirement" field of the
1006      * relation; AND 2. In case of a non-atomic resource, OwnerId of the
1007      * requirement equals to requirementOwnerId of the relation OR uniqueId of
1008      * toInstance equals to capabilityOwnerId of the relation
1009      */
1010     private boolean isRequirementBelongToRelation(Component originComponent, RelationshipInfo reqAndRelationshipPair, RequirementDefinition requirement, String fromInstanceId) {
1011         if (!StringUtils.equals(requirement.getName(), reqAndRelationshipPair.getRequirement())) {
1012             log.debug("Failed to find a requirement with name {} and  reqAndRelationshipPair {}",
1013                     requirement.getName(), reqAndRelationshipPair.getRequirement());
1014             return false;
1015         }
1016         return ModelConverter.isAtomicComponent(originComponent) ||
1017                 isRequirementBelongToOwner(reqAndRelationshipPair, requirement, fromInstanceId, originComponent);
1018     }
1019
1020     private boolean isRequirementBelongToOwner(RelationshipInfo reqAndRelationshipPair, RequirementDefinition requirement, String fromInstanceId, Component originComponent) {
1021         return StringUtils.equals(requirement.getOwnerId(), reqAndRelationshipPair.getRequirementOwnerId()) || (isCvfc(originComponent) && StringUtils.equals(fromInstanceId, reqAndRelationshipPair.getRequirementOwnerId()));
1022     }
1023
1024     private boolean isCvfc(Component component) {
1025         return component.getComponentType() == ComponentTypeEnum.RESOURCE &&
1026                 ((Resource) component).getResourceType() == ResourceTypeEnum.CVFC;
1027     }
1028
1029     private Either<SubstitutionMapping, ToscaError> convertCapabilities(Component component,
1030             SubstitutionMapping substitutionMappings, Map<String, Component> componentCache) {
1031
1032         Either<SubstitutionMapping, ToscaError> result = Either.left(substitutionMappings);
1033         Either<Map<String, String[]>, ToscaError> toscaCapabilitiesRes = capabilityRequirementConverter
1034                 .convertSubstitutionMappingCapabilities(componentCache, component);
1035         if (toscaCapabilitiesRes.isRight()) {
1036             result = Either.right(toscaCapabilitiesRes.right().value());
1037             log.debug("Failed convert capabilities for the component {}. ", component.getName());
1038         } else if (isNotEmpty(toscaCapabilitiesRes.left().value())) {
1039             substitutionMappings.setCapabilities(toscaCapabilitiesRes.left().value());
1040             log.debug("Finish convert capabilities for the component {}. ", component.getName());
1041         }
1042         log.debug("Finished to convert capabilities for the component {}. ", component.getName());
1043         return result;
1044     }
1045
1046     private Either<ToscaNodeType, ToscaError> convertCapabilities(Map<String, Component> componentsCache, Component component, ToscaNodeType nodeType,
1047             Map<String, DataTypeDefinition> dataTypes) {
1048         Map<String, ToscaCapability> toscaCapabilities = capabilityRequirementConverter.convertCapabilities(componentsCache, component,
1049                 dataTypes);
1050         if (!toscaCapabilities.isEmpty()) {
1051             nodeType.setCapabilities(toscaCapabilities);
1052         }
1053         log.debug("Finish convert Capabilities for node type");
1054
1055         return Either.left(nodeType);
1056     }
1057
1058     private static class CustomRepresenter extends Representer {
1059         public CustomRepresenter() {
1060             super();
1061             // null representer is exceptional and it is stored as an instance
1062             // variable.
1063             this.nullRepresenter = new RepresentNull();
1064
1065         }
1066
1067         @Override
1068         protected NodeTuple representJavaBeanProperty(Object javaBean, Property property, Object propertyValue,
1069                 Tag customTag) {
1070             if (propertyValue == null) {
1071                 return null;
1072             } else {
1073                 // skip not relevant for Tosca property
1074                 if ("dependencies".equals(property.getName())) {
1075                     return null;
1076                 }
1077                 NodeTuple defaultNode = super.representJavaBeanProperty(javaBean, property, propertyValue, customTag);
1078
1079                 return "_defaultp_".equals(property.getName())
1080                         ? new NodeTuple(representData("default"), defaultNode.getValueNode()) : defaultNode;
1081             }
1082         }
1083
1084         @Override
1085         protected MappingNode representJavaBean(Set<Property> properties, Object javaBean) {
1086             // remove the bean type from the output yaml (!! ...)
1087             if (!classTags.containsKey(javaBean.getClass())) {
1088                 addClassTag(javaBean.getClass(), Tag.MAP);
1089             }
1090
1091             return super.representJavaBean(properties, javaBean);
1092         }
1093
1094         private class RepresentNull implements Represent {
1095             @Override
1096             public Node representData(Object data) {
1097                 // possible values are here http://yaml.org/type/null.html
1098                 return representScalar(Tag.NULL, "");
1099             }
1100         }
1101     }
1102
1103     private static class UnsortedPropertyUtils extends PropertyUtils {
1104         @Override
1105         protected Set<Property> createPropertySet(Class type, BeanAccess bAccess)
1106                 throws IntrospectionException {
1107             Collection<Property> fields = getPropertiesMap(type, BeanAccess.FIELD).values();
1108             return new LinkedHashSet<>(fields);
1109         }
1110     }
1111
1112 }
1113