catalog-be/src/main/java/org/openecomp/sdc/be/servlets/AbstractValidationsServlet.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  * Modifications copyright (c) 2019 Nokia
  20  * ================================================================================
  21  */
  22
  23 package org.openecomp.sdc.be.servlets;
  24
  25 import com.fasterxml.jackson.databind.ObjectMapper;
  26 import com.google.gson.Gson;
  27 import com.google.gson.JsonSyntaxException;
  28 import fj.data.Either;
  29 import java.io.File;
  30 import java.io.FileInputStream;
  31 import java.io.IOException;
  32 import java.io.InputStream;
  33 import java.lang.reflect.Type;
  34 import java.nio.charset.StandardCharsets;
  35 import java.util.Arrays;
  36 import java.util.HashMap;
  37 import java.util.List;
  38 import java.util.Map;
  39 import java.util.Optional;
  40 import java.util.function.Supplier;
  41 import javax.servlet.ServletContext;
  42 import javax.servlet.http.HttpServletRequest;
  43 import javax.ws.rs.core.Response;
  44 import org.apache.commons.codec.binary.Base64;
  45 import org.apache.commons.collections4.MapUtils;
  46 import org.apache.commons.io.IOUtils;
  47 import org.apache.commons.lang3.StringUtils;
  48 import org.apache.commons.lang3.tuple.ImmutablePair;
  49 import org.openecomp.sdc.be.components.impl.ComponentInstanceBusinessLogic;
  50 import org.openecomp.sdc.be.components.impl.CsarValidationUtils;
  51 import org.openecomp.sdc.be.components.impl.ImportUtils;
  52 import org.openecomp.sdc.be.components.impl.ImportUtils.ResultStatusEnum;
  53 import org.openecomp.sdc.be.components.impl.ImportUtils.ToscaElementTypeEnum;
  54 import org.openecomp.sdc.be.components.impl.ResourceImportManager;
  55 import org.openecomp.sdc.be.components.impl.exceptions.ByActionStatusComponentException;
  56 import org.openecomp.sdc.be.components.impl.exceptions.ByResponseFormatComponentException;
  57 import org.openecomp.sdc.be.components.impl.exceptions.ComponentException;
  58 import org.openecomp.sdc.be.config.BeEcompErrorManager;
  59 import org.openecomp.sdc.be.config.ConfigurationManager;
  60 import org.openecomp.sdc.be.dao.api.ActionStatus;
  61 import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
  62 import org.openecomp.sdc.be.datatypes.enums.ResourceTypeEnum;
  63 import org.openecomp.sdc.be.impl.ComponentsUtils;
  64 import org.openecomp.sdc.be.impl.ServletUtils;
  65 import org.openecomp.sdc.be.model.ArtifactDefinition;
  66 import org.openecomp.sdc.be.model.Resource;
  67 import org.openecomp.sdc.be.model.UploadResourceInfo;
  68 import org.openecomp.sdc.be.model.User;
  69 import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
  70 import org.openecomp.sdc.be.servlets.ResourceUploadServlet.ResourceAuthorityTypeEnum;
  71 import org.openecomp.sdc.be.user.Role;
  72 import org.openecomp.sdc.be.user.UserBusinessLogic;
  73 import org.openecomp.sdc.be.utils.TypeUtils;
  74 import org.openecomp.sdc.common.api.Constants;
  75 import org.openecomp.sdc.common.api.UploadArtifactInfo;
  76 import org.openecomp.sdc.common.datastructure.Wrapper;
  77 import org.openecomp.sdc.common.log.wrappers.Logger;
  78 import org.openecomp.sdc.common.util.GeneralUtility;
  79 import org.openecomp.sdc.common.util.YamlToObjectConverter;
  80 import org.openecomp.sdc.common.zip.ZipUtils;
  81 import org.openecomp.sdc.common.zip.exception.ZipException;
  82 import org.openecomp.sdc.exception.ResponseFormat;
  83 import org.yaml.snakeyaml.Yaml;
  84
  85 public abstract class AbstractValidationsServlet extends BeGenericServlet {
  86
  87     private static final Logger log = Logger.getLogger(AbstractValidationsServlet.class);
  88     private static final String TOSCA_SIMPLE_YAML_PREFIX = "tosca_simple_yaml_";
  89     private static final List<String> TOSCA_DEFINITION_VERSIONS = Arrays.asList(
  90         TOSCA_SIMPLE_YAML_PREFIX + "1_0_0",
  91         TOSCA_SIMPLE_YAML_PREFIX + "1_1_0",
  92         "tosca_simple_profile_for_nfv_1_0_0",
  93         TOSCA_SIMPLE_YAML_PREFIX + "1_0",
  94         TOSCA_SIMPLE_YAML_PREFIX + "1_1",
  95         TOSCA_SIMPLE_YAML_PREFIX + "1_2",
  96         TOSCA_SIMPLE_YAML_PREFIX + "1_3");
  97     private static final List<String> TOSCA_YML_CSAR_VALID_SUFFIX = Arrays.asList(".yml", ".yaml", ".csar");
  98
  99     protected ServletUtils servletUtils;
 100     protected ResourceImportManager resourceImportManager;
 101     protected final ComponentInstanceBusinessLogic componentInstanceBusinessLogic;
 102
 103
 104     public AbstractValidationsServlet(UserBusinessLogic userBusinessLogic,
 105         ComponentInstanceBusinessLogic componentInstanceBL, ComponentsUtils componentsUtils,
 106         ServletUtils servletUtils, ResourceImportManager resourceImportManager) {
 107         super(userBusinessLogic, componentsUtils);
 108         this.servletUtils = servletUtils;
 109         this.resourceImportManager = resourceImportManager;
 110         this.componentInstanceBusinessLogic = componentInstanceBL;
 111     }
 112
 113     protected void init() {
 114     }
 115
 116     protected void validateResourceDoesNotExist(Wrapper<Response> responseWrapper, User user, String resourceName) {
 117         if (resourceImportManager.isResourceExist(resourceName)) {
 118             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESOURCE_ALREADY_EXISTS);
 119             Response errorResponse = buildErrorResponse(responseFormat);
 120             getComponentsUtils().auditResource(responseFormat, user, resourceName, AuditingActionEnum.IMPORT_RESOURCE);
 121             responseWrapper.setInnerElement(errorResponse);
 122         }
 123     }
 124
 125     protected void validateUserExist(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, String userUserId) {
 126         log.debug("get user {} from DB", userUserId);
 127         // get user details
 128         if (userUserId == null) {
 129             log.info("user userId is null");
 130             Response response = returnMissingInformation(new User());
 131             responseWrapper.setInnerElement(response);
 132         }
 133
 134         else {
 135             UserBusinessLogic userAdmin = getServletUtils().getUserAdmin();
 136             try {
 137                 User user = userAdmin.getUser(userUserId);
 138                 userWrapper.setInnerElement(user);
 139             } catch (ComponentException ce) {
 140                 log.info("user is not listed. userId={}", userUserId);
 141                 User user = new User();
 142                 user.setUserId(userUserId);
 143                 Response response = returnMissingInformation(user);
 144                 responseWrapper.setInnerElement(response);
 145             }
 146         }
 147     }
 148
 149     protected Response returnMissingInformation(User user) {
 150         ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_INFORMATION);
 151         getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
 152         return buildErrorResponse(responseFormat);
 153     }
 154
 155     protected void validateDataNotNull(Wrapper<Response> responseWrapper, Object... dataParams) {
 156         for (Object dataElement : dataParams) {
 157             if (dataElement == null) {
 158                 log.info("Invalid body was received.");
 159                 Response response = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 160                 responseWrapper.setInnerElement(response);
 161                 break;
 162             }
 163         }
 164
 165     }
 166
 167     protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user) {
 168         log.debug("validate user role");
 169         if (!user.getRole().equals(Role.ADMIN.name()) && !user.getRole().equals(Role.DESIGNER.name())) {
 170             log.info("user is not in appropriate role to perform action");
 171             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
 172             log.debug("audit before sending response");
 173             getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
 174
 175             Response response = buildErrorResponse(responseFormat);
 176             errorResponseWrapper.setInnerElement(response);
 177         }
 178
 179     }
 180
 181     protected void validateZip(final Wrapper<Response> responseWrapper, final File zipFile, final String payloadName) {
 182         if (StringUtils.isEmpty(payloadName)) {
 183             log.info("Invalid JSON was received. Payload name is empty");
 184             final Response errorResponse =
 185                 buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 186             responseWrapper.setInnerElement(errorResponse);
 187             return;
 188         }
 189         final Map<String, byte[]> unzippedFolder;
 190         try {
 191             unzippedFolder = ZipUtils.readZip(zipFile, false);
 192         } catch (final ZipException e) {
 193             log.error("Could not read ZIP file '{}' for validation", zipFile.getName(), e);
 194             final Response errorResponse =
 195                 buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 196             responseWrapper.setInnerElement(errorResponse);
 197             return;
 198         }
 199         if (!unzippedFolder.containsKey(payloadName)) {
 200             log.info("Could no find payload '{}' in ZIP file '{}'", payloadName, zipFile.getName());
 201             final Response errorResponse =
 202                 buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 203             responseWrapper.setInnerElement(errorResponse);
 204         }
 205
 206
 207     }
 208
 209     protected void validateCsar(final Wrapper<Response> responseWrapper, final File csarFile, final String payloadName) {
 210         if (StringUtils.isEmpty(payloadName)) {
 211             log.info("Invalid JSON was received. Payload name is empty");
 212             Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 213             responseWrapper.setInnerElement(errorResponse);
 214             return;
 215         }
 216         final Map<String, byte[]> unzippedFolder;
 217         try {
 218             unzippedFolder = ZipUtils.readZip(csarFile, false);
 219         } catch (final ZipException e) {
 220             log.error("Could not read CSAR file '{}' for validation", csarFile.getName(), e);
 221             final Response errorResponse =
 222                 buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 223             responseWrapper.setInnerElement(errorResponse);
 224             return;
 225         }
 226         if (unzippedFolder.isEmpty()) {
 227             log.info("The CSAR file is empty");
 228             Response errorResponse = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 229             responseWrapper.setInnerElement(errorResponse);
 230         }
 231
 232     }
 233
 234     protected void fillZipContents(Wrapper<String> yamlStringWrapper, File file) throws ZipException {
 235         extractZipContents(yamlStringWrapper, file);
 236     }
 237
 238     public static void extractZipContents(Wrapper<String> yamlStringWrapper, File file) throws ZipException {
 239         final Map<String, byte[]> unzippedFolder = ZipUtils.readZip(file, false);
 240         String ymlName = unzippedFolder.keySet().iterator().next();
 241         fillToscaTemplateFromZip(yamlStringWrapper, ymlName, file);
 242     }
 243
 244     private static void fillToscaTemplateFromZip(final Wrapper<String> yamlStringWrapper, final String payloadName,
 245                                                  final File file) throws ZipException {
 246         final Map<String, byte[]> unzippedFolder = ZipUtils.readZip(file, false);
 247         final byte[] yamlFileInBytes = unzippedFolder.get(payloadName);
 248         final String yamlAsString = new String(yamlFileInBytes, StandardCharsets.UTF_8);
 249         log.debug("received yaml: {}", yamlAsString);
 250         yamlStringWrapper.setInnerElement(yamlAsString);
 251     }
 252
 253     protected void fillPayloadDataFromFile(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfoWrapper, File file)  {
 254         try(InputStream fileInputStream = new FileInputStream(file)){
 255
 256             byte [] data = new byte[(int)file.length()];
 257             if( fileInputStream.read(data) == -1){
 258                 log.info("Invalid json was received.");
 259                 ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
 260
 261                 Response errorResp = buildErrorResponse(responseFormat);
 262                 responseWrapper.setInnerElement(errorResp);
 263             }
 264             String payloadData =  Base64.encodeBase64String(data);
 265             uploadResourceInfoWrapper.setPayloadData(payloadData);
 266
 267
 268
 269         } catch (IOException e) {
 270             log.info("Invalid json was received or Error while closing input Stream.");
 271             log.debug("Invalid json was received or Error while closing input Stream. {}", e.getMessage(), e);
 272             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
 273
 274             Response errorResp = buildErrorResponse(responseFormat);
 275             responseWrapper.setInnerElement(errorResp);
 276
 277         }
 278     }
 279
 280     protected void validateUserRole(Wrapper<Response> errorResponseWrapper, User user, ResourceAuthorityTypeEnum resourceAuthority) {
 281         log.debug("validate user role");
 282         if (resourceAuthority == ResourceAuthorityTypeEnum.NORMATIVE_TYPE_BE) {
 283             if (!user.getRole().equals(Role.ADMIN.name())) {
 284                 log.info("user is not in appropriate role to perform action");
 285                 ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.RESTRICTED_OPERATION);
 286                 log.debug("audit before sending response");
 287                 getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
 288
 289                 Response response = buildErrorResponse(responseFormat);
 290                 errorResponseWrapper.setInnerElement(response);
 291             }
 292         } else {
 293             validateUserRole(errorResponseWrapper, user);
 294         }
 295
 296     }
 297
 298     protected void validateAndFillResourceJson(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, User user, ResourceAuthorityTypeEnum resourceAuthorityEnum, String resourceInfo) {
 299         boolean isValid;
 300         try {
 301             log.debug("The received json is {}", resourceInfo);
 302             UploadResourceInfo resourceInfoObject = gson.fromJson(resourceInfo, UploadResourceInfo.class);
 303             if (resourceInfoObject == null) {
 304                 isValid = false;
 305             } else {
 306                 if (!resourceAuthorityEnum.isBackEndImport()) {
 307                     isValid = resourceInfoObject.getPayloadName() != null && !resourceInfoObject.getPayloadName().isEmpty();
 308                     //only resource name is checked
 309                 } else {
 310                     isValid = true;
 311                 }
 312                 uploadResourceInfoWrapper.setInnerElement(resourceInfoObject);
 313             }
 314
 315         } catch (JsonSyntaxException e) {
 316             log.debug("Invalid json was received. {}", e.getMessage(), e);
 317             isValid = false;
 318
 319         }
 320         if (!isValid) {
 321             log.info("Invalid json was received.");
 322             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
 323             getComponentsUtils().auditResource(responseFormat, user, "", AuditingActionEnum.IMPORT_RESOURCE);
 324             Response errorResp = buildErrorResponse(responseFormat);
 325             responseWrapper.setInnerElement(errorResp);
 326         }
 327     }
 328
 329     protected void validateAuthorityType(Wrapper<Response> responseWrapper, String authorityType) {
 330         log.debug("The received authority type is {}", authorityType);
 331         ResourceAuthorityTypeEnum authorityTypeEnum = ResourceAuthorityTypeEnum.findByUrlPath(authorityType);
 332         if (authorityTypeEnum == null) {
 333             log.info("Invalid authority type was received.");
 334             Response errorResp = buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 335             responseWrapper.setInnerElement(errorResp);
 336         }
 337     }
 338
 339     public ServletUtils getServletUtils() {
 340         return servletUtils;
 341     }
 342
 343     public Gson getGson() {
 344         return getServletUtils().getGson();
 345     }
 346
 347     public ComponentsUtils getComponentsUtils() {
 348         return getServletUtils().getComponentsUtils();
 349     }
 350
 351     protected void validatePayloadIsTosca(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user, String toscaPayload) {
 352         log.debug("checking payload is valid tosca");
 353         boolean isValid;
 354         Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
 355         Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils.findFirstToscaStringElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOSCA_VERSION);
 356
 357         if (findFirstToscaStringElement.isRight()) {
 358             isValid = false;
 359         } else {
 360             String defenitionVersionFound = findFirstToscaStringElement.left().value();
 361             if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
 362                 isValid = false;
 363             } else {
 364                 isValid = TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
 365             }
 366         }
 367
 368         if (!isValid) {
 369             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
 370             Response errorResponse = buildErrorResponse(responseFormat);
 371             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 372             responseWrapper.setInnerElement(errorResponse);
 373         }
 374
 375     }
 376
 377     protected void validatePayloadIsYml(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo, String toscaTamplatePayload) {
 378         log.debug("checking tosca template is valid yml");
 379         YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
 380         boolean isYamlValid = yamlConvertor.isValidYaml(toscaTamplatePayload.getBytes());
 381         if (!isYamlValid) {
 382             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
 383             Response errorResponse = buildErrorResponse(responseFormat);
 384             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 385             responseWrapper.setInnerElement(errorResponse);
 386         }
 387     }
 388
 389     /**
 390      * Gets the Resource type from the given node type name.
 391      *
 392      * @param nodeTypeFullName - Node type Name
 393      * @return Resource Type name
 394      */
 395     private String getResourceType(final String nodeTypeFullName) {
 396
 397         final Optional<String> nodeTypeNamePrefix = getNodeTypeNamePrefix(nodeTypeFullName);
 398         if (nodeTypeNamePrefix.isPresent()) {
 399             final String nameWithouNamespacePrefix = nodeTypeFullName.substring(nodeTypeNamePrefix.get().length());
 400             final String[] findTypes = nameWithouNamespacePrefix.split("\\.");
 401             if (findTypes.length > 0) {
 402                 final ResourceTypeEnum resourceType = ResourceTypeEnum.getType(findTypes[0].toUpperCase());
 403                 if (resourceType != null) {
 404                     return resourceType.name();
 405                 }
 406             }
 407         }
 408         return ResourceTypeEnum.VFC.name();
 409     }
 410
 411     /**
 412      * Extracts the Node Type Name prefix from the given Node Type Name.
 413      * @param nodeName - Node Type Name
 414      * @return Node Type Name prefix
 415      */
 416     private Optional<String> getNodeTypeNamePrefix(final String nodeName) {
 417         final List<String> definedNodeTypeNamespaceList = ConfigurationManager.getConfigurationManager()
 418             .getConfiguration().getDefinedResourceNamespace();
 419         for (final String validNamespace : definedNodeTypeNamespaceList) {
 420             if (nodeName.startsWith(validNamespace)) {
 421                 return Optional.of(validNamespace);
 422             }
 423         }
 424         return Optional.empty();
 425     }
 426
 427     protected void validatePayloadNameSpace(final Wrapper<Response> responseWrapper,
 428                                             final UploadResourceInfo resourceInfo,
 429                                             final User user, final String toscaPayload) {
 430         boolean isValid;
 431         String namespace = "";
 432         final Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
 433         final Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.NODE_TYPES);
 434         if (toscaElement.isRight() || toscaElement.left().value().size() != 1) {
 435             isValid = false;
 436         } else {
 437             namespace = toscaElement.left().value().keySet().iterator().next();
 438             isValid = getNodeTypeNamePrefix(namespace).isPresent();
 439         }
 440         if (!isValid) {
 441             final ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_NAMESPACE);
 442             final Response errorResponse = buildErrorResponse(responseFormat);
 443             getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 444             responseWrapper.setInnerElement(errorResponse);
 445         } else {
 446             resourceInfo.setResourceType(getResourceType(namespace));
 447         }
 448     }
 449
 450     private void validatePayloadIsSingleResource(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user, String toscaPayload) {
 451         log.debug("checking payload contains single resource");
 452         boolean isValid;
 453         Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
 454         Either<Map<String, Object>, ResultStatusEnum> toscaElement = ImportUtils.findFirstToscaMapElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.NODE_TYPES);
 455         if (toscaElement.isRight()) {
 456             isValid = false;
 457         } else {
 458             isValid = toscaElement.left().value().size() == 1;
 459         }
 460
 461         if (!isValid) {
 462             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_SINGLE_RESOURCE);
 463             Response errorResponse = buildErrorResponse(responseFormat);
 464             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 465             responseWrapper.setInnerElement(errorResponse);
 466         }
 467
 468     }
 469
 470     private void validatePayloadIsNotService(Wrapper<Response> responseWrapper, User user, UploadResourceInfo uploadResourceInfo, String toscaPayload) {
 471         log.debug("checking payload is not a tosca service");
 472         Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaPayload);
 473         Either<Object, ResultStatusEnum> toscaElement = ImportUtils.findToscaElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOPOLOGY_TEMPLATE, ToscaElementTypeEnum.ALL);
 474
 475         if (toscaElement.isLeft()) {
 476             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.NOT_RESOURCE_TOSCA_TEMPLATE);
 477             Response errorResponse = buildErrorResponse(responseFormat);
 478             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 479             responseWrapper.setInnerElement(errorResponse);
 480         }
 481
 482     }
 483
 484     private void validateToscaTemplatePayloadName(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
 485         String toscaTemplatePayloadName = uploadResourceInfo.getPayloadName();
 486         boolean isValidSuffix = false;
 487         if (toscaTemplatePayloadName != null && !toscaTemplatePayloadName.isEmpty()) {
 488             for (String validSuffix : TOSCA_YML_CSAR_VALID_SUFFIX) {
 489                 isValidSuffix = isValidSuffix || toscaTemplatePayloadName.toLowerCase().endsWith(validSuffix);
 490             }
 491         }
 492         if (!isValidSuffix) {
 493             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_FILE_EXTENSION);
 494             Response errorResponse = buildErrorResponse(responseFormat);
 495             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 496             responseWrapper.setInnerElement(errorResponse);
 497         }
 498
 499     }
 500
 501     private void validateMD5(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfo, HttpServletRequest request, String resourceInfoJsonString) {
 502         boolean isValid;
 503         String recievedMD5 = request.getHeader(Constants.MD5_HEADER);
 504         if (recievedMD5 == null) {
 505             isValid = false;
 506         } else {
 507             String calculateMD5 = GeneralUtility.calculateMD5Base64EncodedByString(resourceInfoJsonString);
 508             isValid = calculateMD5.equals(recievedMD5);
 509         }
 510         if (!isValid) {
 511             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_CHECKSUM);
 512             Response errorResponse = buildErrorResponse(responseFormat);
 513             getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 514             responseWrapper.setInnerElement(errorResponse);
 515         }
 516     }
 517
 518     ComponentTypeEnum validateComponentType(String componentType) {
 519         if (componentType == null) {
 520             throw new ByActionStatusComponentException(ActionStatus.UNSUPPORTED_ERROR);
 521         }
 522         if (ComponentTypeEnum.RESOURCE_PARAM_NAME.equalsIgnoreCase(componentType)) {
 523             return ComponentTypeEnum.RESOURCE;
 524         }
 525         if (ComponentTypeEnum.SERVICE_PARAM_NAME.equalsIgnoreCase(componentType)) {
 526             return ComponentTypeEnum.SERVICE;
 527         }
 528         log.debug("Invalid componentType:{}", componentType);
 529         throw new ByActionStatusComponentException(ActionStatus.UNSUPPORTED_ERROR, componentType);
 530     }
 531
 532
 533     ComponentTypeEnum convertToComponentType(String componentType) {
 534         return validateComponentType(componentType);
 535     }
 536
 537     private void fillToscaTemplateFromJson(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user, UploadResourceInfo resourceInfo) {
 538         if (resourceInfo.getPayloadData() == null || resourceInfo.getPayloadData().isEmpty()) {
 539             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_RESOURCE_PAYLOAD);
 540             Response errorResponse = buildErrorResponse(responseFormat);
 541             getComponentsUtils().auditResource(responseFormat, user, resourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 542             responseWrapper.setInnerElement(errorResponse);
 543         } else {
 544             String toscaPayload = resourceInfo.getPayloadData();
 545             String decodedPayload = new String(Base64.decodeBase64(toscaPayload));
 546             yamlStringWrapper.setInnerElement(decodedPayload);
 547         }
 548
 549     }
 550
 551     void fillPayload(Wrapper<Response> responseWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, Wrapper<String> yamlStringWrapper, User user, String resourceInfoJsonString, ResourceAuthorityTypeEnum resourceAuthorityEnum,
 552             File file) throws ZipException {
 553
 554         if (responseWrapper.isEmpty()) {
 555             if (resourceAuthorityEnum.isBackEndImport()) {
 556                 // PrePayload Validations
 557                 if (responseWrapper.isEmpty()) {
 558                     validateDataNotNull(responseWrapper, file, resourceInfoJsonString);
 559                 }
 560                 if(!resourceAuthorityEnum.equals(ResourceAuthorityTypeEnum.CSAR_TYPE_BE)){
 561                     if (responseWrapper.isEmpty()) {
 562                         validateZip(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
 563                     }
 564
 565                     // Fill PayLoad From File
 566                     if (responseWrapper.isEmpty()) {
 567                         fillToscaTemplateFromZip(yamlStringWrapper, uploadResourceInfoWrapper.getInnerElement().getPayloadName(), file);
 568                     }
 569                 }else{
 570
 571                     if (responseWrapper.isEmpty()) {
 572                         validateCsar(responseWrapper, file, uploadResourceInfoWrapper.getInnerElement().getPayloadName());
 573                     }
 574
 575                     // Fill PayLoad From File
 576                     if (responseWrapper.isEmpty()) {
 577                         fillPayloadDataFromFile(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), file);
 578                     }
 579
 580                 }
 581
 582             } else {
 583                 // Fill PayLoad From JSON
 584                 if (responseWrapper.isEmpty()) {
 585                     fillToscaTemplateFromJson(responseWrapper, yamlStringWrapper, user, uploadResourceInfoWrapper.getInnerElement());
 586                 }
 587             }
 588
 589         }
 590
 591     }
 592
 593     protected void specificResourceAuthorityValidations(final Wrapper<Response> responseWrapper,
 594                                                         final Wrapper<UploadResourceInfo> uploadResourceInfoWrapper,
 595                                                         final Wrapper<String> yamlStringWrapper, final User user,
 596                                                         final HttpServletRequest request, final String resourceInfoJsonString,
 597                                                         final ResourceAuthorityTypeEnum resourceAuthorityEnum) {
 598
 599         if (responseWrapper.isEmpty()) {
 600             // UI Only Validation
 601             if (!resourceAuthorityEnum.isBackEndImport()) {
 602                 importUIValidations(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, request, resourceInfoJsonString);
 603             }
 604
 605             // User Defined Type Resources
 606             if (resourceAuthorityEnum.isUserTypeResource()
 607                     && !CsarValidationUtils.isCsarPayloadName(uploadResourceInfoWrapper.getInnerElement().getPayloadName())
 608                     && responseWrapper.isEmpty()) {
 609                             validatePayloadNameSpace(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), user, yamlStringWrapper.getInnerElement());
 610             }
 611         }
 612     }
 613
 614     void commonGeneralValidations(Wrapper<Response> responseWrapper, Wrapper<User> userWrapper, Wrapper<UploadResourceInfo> uploadResourceInfoWrapper, ResourceAuthorityTypeEnum resourceAuthorityEnum, String userId,
 615                                   String resourceInfoJsonString) {
 616
 617         if (responseWrapper.isEmpty()) {
 618             validateUserExist(responseWrapper, userWrapper, userId);
 619         }
 620
 621         if (responseWrapper.isEmpty()) {
 622             validateUserRole(responseWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum);
 623         }
 624
 625         if (responseWrapper.isEmpty()) {
 626             validateAndFillResourceJson(responseWrapper, uploadResourceInfoWrapper, userWrapper.getInnerElement(), resourceAuthorityEnum, resourceInfoJsonString);
 627         }
 628
 629         if (responseWrapper.isEmpty()) {
 630             validateToscaTemplatePayloadName(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
 631         }
 632         if (responseWrapper.isEmpty()) {
 633             validateResourceType(responseWrapper, uploadResourceInfoWrapper.getInnerElement(), userWrapper.getInnerElement());
 634         }
 635
 636     }
 637
 638     private void validateResourceType(Wrapper<Response> responseWrapper, UploadResourceInfo uploadResourceInfo, User user) {
 639         String resourceType = uploadResourceInfo.getResourceType();
 640         if (resourceType == null || !ResourceTypeEnum.containsName(resourceType)) {
 641             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
 642             Response errorResponse = buildErrorResponse(responseFormat);
 643             getComponentsUtils().auditResource(responseFormat, user, uploadResourceInfo.getName(), AuditingActionEnum.IMPORT_RESOURCE);
 644             responseWrapper.setInnerElement(errorResponse);
 645         }
 646     }
 647
 648     private void importUIValidations(Wrapper<Response> responseWrapper, UploadResourceInfo resourceInfo, User user, HttpServletRequest request, String resourceInfoJsonString) {
 649         if (responseWrapper.isEmpty()) {
 650             validateMD5(responseWrapper, user, resourceInfo, request, resourceInfoJsonString);
 651         }
 652         if (responseWrapper.isEmpty() && request != null && request.getMethod() != null && request.getMethod().equals("POST")) {
 653             validateResourceDoesNotExist(responseWrapper, user, resourceInfo.getName());
 654         }
 655     }
 656
 657     void commonPayloadValidations(Wrapper<Response> responseWrapper, Wrapper<String> yamlStringWrapper, User user, UploadResourceInfo uploadResourceInfo) {
 658
 659         if (responseWrapper.isEmpty()) {
 660             validatePayloadIsYml(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
 661         }
 662         if (responseWrapper.isEmpty()) {
 663             validatePayloadIsTosca(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
 664         }
 665         if (responseWrapper.isEmpty()) {
 666             validatePayloadIsNotService(responseWrapper, user, uploadResourceInfo, yamlStringWrapper.getInnerElement());
 667         }
 668         if (responseWrapper.isEmpty()) {
 669             validatePayloadIsSingleResource(responseWrapper, uploadResourceInfo, user, yamlStringWrapper.getInnerElement());
 670         }
 671     }
 672
 673
 674     void handleImport(Wrapper<Response> responseWrapper, User user, UploadResourceInfo resourceInfoObject, String yamlAsString, ResourceAuthorityTypeEnum authority, boolean createNewVersion, String resourceUniqueId) {
 675         ImmutablePair<Resource, ActionStatus> createOrUpdateResponse = null;
 676         Response response = null;
 677         Object representation = null;
 678         ImmutablePair<Resource, ActionStatus> importedResourceStatus = null;
 679         if (CsarValidationUtils.isCsarPayloadName(resourceInfoObject.getPayloadName())) {
 680             log.debug("import resource from csar");
 681             importedResourceStatus = importResourceFromUICsar(resourceInfoObject, user, resourceUniqueId);
 682         } else if (!authority.isUserTypeResource()) {
 683             log.debug("import normative type resource");
 684             createOrUpdateResponse = resourceImportManager.importNormativeResource(yamlAsString, resourceInfoObject, user, createNewVersion, true);
 685         } else {
 686             log.debug("import user resource (not normative type)");
 687             createOrUpdateResponse = resourceImportManager.importUserDefinedResource(yamlAsString, resourceInfoObject, user,  false);
 688         }
 689         if (createOrUpdateResponse!= null){
 690             importedResourceStatus = createOrUpdateResponse;
 691         }
 692         if(importedResourceStatus != null){
 693             try {
 694                 representation = RepresentationUtils.toRepresentation(importedResourceStatus.left);
 695             } catch (IOException e) {
 696                 log.debug("Error while building resource representation : {}", e.getMessage(), e);
 697             }
 698             response = buildOkResponse(getComponentsUtils().getResponseFormat(importedResourceStatus.right), representation);
 699         }
 700         responseWrapper.setInnerElement(response);
 701     }
 702
 703     private ImmutablePair<Resource, ActionStatus> importResourceFromUICsar(UploadResourceInfo resourceInfoObject, User user, String resourceUniqueId) {
 704
 705         Resource newResource;
 706         ActionStatus actionStatus;
 707         Resource resource = new Resource();
 708         String payloadName = resourceInfoObject.getPayloadName();
 709         fillResourceFromResourceInfoObject(resource, resourceInfoObject);
 710
 711         Map<String, byte[]> csarUIPayload = getCsarFromPayload(resourceInfoObject);
 712         getAndValidateCsarYaml(csarUIPayload, resource, user, payloadName);
 713
 714         if (resourceUniqueId == null || resourceUniqueId.isEmpty()) {
 715             newResource = resourceImportManager.getResourceBusinessLogic().createResource(resource, AuditingActionEnum.CREATE_RESOURCE, user, csarUIPayload, payloadName);
 716             actionStatus = ActionStatus.CREATED;
 717         } else {
 718             newResource = resourceImportManager.getResourceBusinessLogic().validateAndUpdateResourceFromCsar(resource, user, csarUIPayload, payloadName, resourceUniqueId);
 719             actionStatus = ActionStatus.OK;
 720         }
 721         return new ImmutablePair<>(newResource, actionStatus);
 722     }
 723
 724     private Resource throwComponentException(ResponseFormat responseFormat) {
 725         throw new ByResponseFormatComponentException(responseFormat);
 726     }
 727
 728     private void getAndValidateCsarYaml(Map<String, byte[]> csarUIPayload, Resource resource, User user, String csarUUID) {
 729
 730         Either<ImmutablePair<String, String>, ResponseFormat> getToscaYamlRes = CsarValidationUtils.getToscaYaml(csarUIPayload, csarUUID, getComponentsUtils());
 731
 732         if (getToscaYamlRes.isRight()) {
 733             ResponseFormat responseFormat = getToscaYamlRes.right().value();
 734             log.debug("Error when try to get csar toscayamlFile with csar ID {}, error: {}", csarUUID, responseFormat);
 735             BeEcompErrorManager.getInstance().logBeDaoSystemError("Creating resource from CSAR: fetching CSAR with id " + csarUUID + " failed");
 736             getComponentsUtils().auditResource(responseFormat, user, resource, AuditingActionEnum.CREATE_RESOURCE);
 737             throwComponentException(responseFormat);
 738         }
 739         String toscaYaml = getToscaYamlRes.left().value().getValue();
 740
 741         log.debug("checking tosca template is valid yml");
 742         YamlToObjectConverter yamlConvertor = new YamlToObjectConverter();
 743         boolean isValid = yamlConvertor.isValidYaml(toscaYaml.getBytes());
 744         if (!isValid) {
 745             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_YAML_FILE);
 746             getComponentsUtils().auditResource(responseFormat, user, resource, AuditingActionEnum.IMPORT_RESOURCE);
 747             throwComponentException(responseFormat);
 748         }
 749
 750         log.debug("checking payload is valid tosca");
 751         Map<String, Object> mappedToscaTemplate = (Map<String, Object>) new Yaml().load(toscaYaml);
 752         Either<String, ResultStatusEnum> findFirstToscaStringElement = ImportUtils.findFirstToscaStringElement(mappedToscaTemplate, TypeUtils.ToscaTagNamesEnum.TOSCA_VERSION);
 753
 754         if (findFirstToscaStringElement.isRight()) {
 755             isValid = false;
 756         } else {
 757             String defenitionVersionFound = findFirstToscaStringElement.left().value();
 758             if (defenitionVersionFound == null || defenitionVersionFound.isEmpty()) {
 759                 isValid = false;
 760             } else {
 761                 isValid = TOSCA_DEFINITION_VERSIONS.contains(defenitionVersionFound);
 762             }
 763         }
 764
 765         if (!isValid) {
 766             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_TOSCA_TEMPLATE);
 767             getComponentsUtils().auditResource(responseFormat, user, resource, AuditingActionEnum.IMPORT_RESOURCE);
 768             throwComponentException(responseFormat);
 769         }
 770     }
 771
 772     private void fillResourceFromResourceInfoObject(Resource resource, UploadResourceInfo resourceInfoObject) {
 773         resourceImportManager.populateResourceMetadata(resourceInfoObject, resource);
 774         fillArtifacts(resource, resourceInfoObject);
 775
 776     }
 777
 778     private void fillArtifacts(Resource resource, UploadResourceInfo resourceInfoObject) {
 779         if (resource != null && resourceInfoObject != null) {
 780             List<UploadArtifactInfo> artifactList = resourceInfoObject.getArtifactList();
 781             if (artifactList != null) {
 782                 Map<String, ArtifactDefinition> artifactsHM = new HashMap<>();
 783                 for (UploadArtifactInfo artifact : artifactList) {
 784                     ArtifactDefinition artifactDef = new ArtifactDefinition();
 785                     artifactDef.setArtifactName(artifact.getArtifactName());
 786                     artifactDef.setArtifactType(artifact.getArtifactType().getType());
 787                     artifactDef.setDescription(artifact.getArtifactDescription());
 788                     artifactDef.setPayloadData(artifact.getArtifactData());
 789                     artifactDef.setArtifactRef(artifact.getArtifactPath());
 790                     artifactsHM.put(artifactDef.getArtifactName(), artifactDef);
 791                 }
 792                 resource.setArtifacts(artifactsHM);
 793             }
 794         }
 795     }
 796
 797     private Map<String, byte[]> getCsarFromPayload(UploadResourceInfo innerElement) {
 798         String csarUUID = innerElement.getPayloadName();
 799         String payloadData = innerElement.getPayloadData();
 800         if (payloadData == null) {
 801             log.info("Failed to decode received csar {}", csarUUID);
 802             throw new ByActionStatusComponentException(ActionStatus.CSAR_NOT_FOUND, csarUUID);
 803         }
 804
 805         byte[] decodedPayload = Base64.decodeBase64(payloadData.getBytes(StandardCharsets.UTF_8));
 806         if (decodedPayload == null) {
 807             log.info("Failed to decode received csar {}", csarUUID);
 808             throw new ByActionStatusComponentException(ActionStatus.CSAR_NOT_FOUND, csarUUID);
 809         }
 810
 811         Map<String, byte[]> csar = null;
 812         try {
 813             csar = ZipUtils.readZip(decodedPayload, false);
 814         } catch (final ZipException e) {
 815             log.info("Failed to unzip received csar {}", csarUUID, e);
 816         }
 817         return csar;
 818     }
 819
 820     void validateInputStream(final HttpServletRequest request, Wrapper<String> dataWrapper, Wrapper<ResponseFormat> errorWrapper) throws IOException {
 821         InputStream inputStream = request.getInputStream();
 822         byte[] bytes = IOUtils.toByteArray(inputStream);
 823         if (bytes == null || bytes.length == 0) {
 824             log.info("Empty body was sent.");
 825             errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 826         } else {
 827             dataWrapper.setInnerElement(new String(bytes, StandardCharsets.UTF_8));
 828         }
 829
 830     }
 831
 832     <T> void validateClassParse(String data, Wrapper<T> parsedClassWrapper, Supplier<Class<T>> classGen, Wrapper<ResponseFormat> errorWrapper) {
 833         try {
 834             T parsedClass = gson.fromJson(data, classGen.get());
 835             if (parsedClass == null) {
 836                 errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 837             } else {
 838                 parsedClassWrapper.setInnerElement(parsedClass);
 839             }
 840         } catch (JsonSyntaxException e) {
 841             log.debug("Failed to decode received {} {} to object.", classGen.get().getName(), data, e);
 842             errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT));
 843         }
 844     }
 845
 846     void validateComponentInstanceBusinessLogic(HttpServletRequest request, String containerComponentType, Wrapper<ComponentInstanceBusinessLogic> blWrapper, Wrapper<ResponseFormat> errorWrapper) {
 847         ServletContext context = request.getSession().getServletContext();
 848         ComponentInstanceBusinessLogic componentInstanceLogic = getComponentInstanceBL(context);
 849         if (componentInstanceLogic == null) {
 850             log.debug("Unsupported component type {}", containerComponentType);
 851             errorWrapper.setInnerElement(getComponentsUtils().getResponseFormat(ActionStatus.UNSUPPORTED_ERROR, containerComponentType));
 852         } else {
 853             blWrapper.setInnerElement(componentInstanceLogic);
 854         }
 855     }
 856
 857     <T> Response buildResponseFromElement(Wrapper<ResponseFormat> errorWrapper, Wrapper<T> attributeWrapper) throws IOException {
 858         Response response;
 859         if (errorWrapper.isEmpty()) {
 860             ObjectMapper mapper = new ObjectMapper();
 861             String result = mapper.writeValueAsString(attributeWrapper.getInnerElement());
 862             response = buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), result);
 863         } else {
 864             response = buildErrorResponse(errorWrapper.getInnerElement());
 865         }
 866         return response;
 867     }
 868
 869     protected void validateXECOMPInstanceIDHeader(String instanceIdHeader, Wrapper<ResponseFormat> responseWrapper) {
 870         ResponseFormat responseFormat;
 871         if(StringUtils.isEmpty(instanceIdHeader) ){
 872             log.debug("Missing X-ECOMP-InstanceID header");
 873             responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_X_ECOMP_INSTANCE_ID);
 874             responseWrapper.setInnerElement(responseFormat);
 875         }
 876     }
 877
 878     protected void validateHttpCspUserIdHeader(String header, Wrapper<ResponseFormat> responseWrapper) {
 879         ResponseFormat responseFormat;
 880         if( StringUtils.isEmpty(header)){
 881             log.debug("MissingUSER_ID");
 882             responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_USER_ID);
 883             responseWrapper.setInnerElement(responseFormat);
 884         }
 885     }
 886
 887     <T> Either<T, ResponseFormat> parseToObject(String json, Supplier<Class<T>> classSupplier) {
 888
 889         try {
 890             T object = RepresentationUtils.fromRepresentation(json, classSupplier.get());
 891             return Either.left(object);
 892         } catch (Exception e) {
 893             log.debug("Failed to parse json to {} object", classSupplier.get().getName(), e);
 894             ResponseFormat responseFormat = componentsUtils.getResponseFormat(ActionStatus.INVALID_CONTENT);
 895             return Either.right(responseFormat);
 896         }
 897     }
 898
 899     public <T> Either<List<T>, ResponseFormat> parseListOfObjects(String json, Type type) {
 900         try {
 901             List<T> listOfObjects = gson.fromJson(json, type);
 902             return Either.left(listOfObjects);
 903         } catch (Exception e) {
 904             log.debug("Failed to parse json to {} object", type.getClass().getName(), e);
 905             ResponseFormat responseFormat = getComponentsUtils().getResponseFormat(ActionStatus.INVALID_CONTENT);
 906             return Either.right(responseFormat);
 907         }
 908     }
 909     protected void validateNotEmptyBody(String data) {
 910         if (StringUtils.isEmpty(data)) {
 911             throw new ByActionStatusComponentException(ActionStatus.MISSING_BODY);
 912         }
 913     }
 914 }