restconf/restconf-nb-rfc8040/src/main/java/org/opendaylight/restconf/nb/rfc8040/rests/services/impl/RestconfDataServiceImpl.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.restconf.nb.rfc8040.rests.services.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfDataServiceConstant.PostPutQueryParameters.INSERT;
  12 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfDataServiceConstant.PostPutQueryParameters.POINT;
  13 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.NOTIFICATION_STREAM;
  14 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.STREAMS_PATH;
  15 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.STREAM_ACCESS_PATH_PART;
  16 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.STREAM_LOCATION_PATH_PART;
  17 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.STREAM_PATH;
  18 import static org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants.STREAM_PATH_PART;
  19
  20 import java.net.URI;
  21 import java.time.Clock;
  22 import java.time.LocalDateTime;
  23 import java.time.format.DateTimeFormatter;
  24 import java.util.List;
  25 import java.util.Map.Entry;
  26 import java.util.Optional;
  27 import javax.ws.rs.Path;
  28 import javax.ws.rs.WebApplicationException;
  29 import javax.ws.rs.core.Response;
  30 import javax.ws.rs.core.UriInfo;
  31 import org.eclipse.jdt.annotation.NonNull;
  32 import org.eclipse.jdt.annotation.Nullable;
  33 import org.opendaylight.mdsal.dom.api.DOMActionResult;
  34 import org.opendaylight.mdsal.dom.api.DOMDataBroker;
  35 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
  36 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
  37 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  38 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
  39 import org.opendaylight.restconf.common.context.WriterParameters;
  40 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
  41 import org.opendaylight.restconf.common.errors.RestconfError;
  42 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
  43 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
  44 import org.opendaylight.restconf.common.patch.PatchContext;
  45 import org.opendaylight.restconf.common.patch.PatchStatusContext;
  46 import org.opendaylight.restconf.nb.rfc8040.handlers.ActionServiceHandler;
  47 import org.opendaylight.restconf.nb.rfc8040.handlers.DOMMountPointServiceHandler;
  48 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  49 import org.opendaylight.restconf.nb.rfc8040.handlers.TransactionChainHandler;
  50 import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfDataService;
  51 import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfStreamsSubscriptionService;
  52 import org.opendaylight.restconf.nb.rfc8040.rests.transactions.TransactionVarsWrapper;
  53 import org.opendaylight.restconf.nb.rfc8040.rests.utils.CreateStreamUtil;
  54 import org.opendaylight.restconf.nb.rfc8040.rests.utils.DeleteDataTransactionUtil;
  55 import org.opendaylight.restconf.nb.rfc8040.rests.utils.PatchDataTransactionUtil;
  56 import org.opendaylight.restconf.nb.rfc8040.rests.utils.PlainPatchDataTransactionUtil;
  57 import org.opendaylight.restconf.nb.rfc8040.rests.utils.PostDataTransactionUtil;
  58 import org.opendaylight.restconf.nb.rfc8040.rests.utils.PutDataTransactionUtil;
  59 import org.opendaylight.restconf.nb.rfc8040.rests.utils.ReadDataTransactionUtil;
  60 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfDataServiceConstant;
  61 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfInvokeOperationsUtil;
  62 import org.opendaylight.restconf.nb.rfc8040.streams.listeners.NotificationListenerAdapter;
  63 import org.opendaylight.restconf.nb.rfc8040.utils.RestconfConstants;
  64 import org.opendaylight.restconf.nb.rfc8040.utils.mapping.RestconfMappingNodeUtil;
  65 import org.opendaylight.restconf.nb.rfc8040.utils.parser.ParserIdentifier;
  66 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
  67 import org.opendaylight.yangtools.concepts.Immutable;
  68 import org.opendaylight.yangtools.yang.common.QName;
  69 import org.opendaylight.yangtools.yang.common.Revision;
  70 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  71 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  72 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  73 import org.opendaylight.yangtools.yang.model.api.ActionDefinition;
  74 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  75 import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
  76 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  77 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  78 import org.slf4j.Logger;
  79 import org.slf4j.LoggerFactory;
  80
  81 /**
  82  * Implementation of {@link RestconfDataService}.
  83  */
  84 @Path("/")
  85 public class RestconfDataServiceImpl implements RestconfDataService {
  86     private static final class QueryParams implements Immutable {
  87         final @Nullable String point;
  88         final @Nullable String insert;
  89
  90         QueryParams(final @Nullable String insert, final @Nullable String point) {
  91             this.insert = insert;
  92             this.point = point;
  93         }
  94     }
  95
  96     private static final Logger LOG = LoggerFactory.getLogger(RestconfDataServiceImpl.class);
  97     private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("yyyy-MMM-dd HH:mm:ss");
  98
  99     private final RestconfStreamsSubscriptionService delegRestconfSubscrService;
 100
 101     // FIXME: evaluate thread-safety of updates (synchronized) vs. access (mostly unsynchronized) here
 102     private SchemaContextHandler schemaContextHandler;
 103     private TransactionChainHandler transactionChainHandler;
 104     private DOMMountPointServiceHandler mountPointServiceHandler;
 105     private volatile ActionServiceHandler actionServiceHandler;
 106
 107     public RestconfDataServiceImpl(final SchemaContextHandler schemaContextHandler,
 108             final TransactionChainHandler transactionChainHandler,
 109             final DOMMountPointServiceHandler mountPointServiceHandler,
 110             final RestconfStreamsSubscriptionService delegRestconfSubscrService,
 111             final ActionServiceHandler actionServiceHandler) {
 112         this.actionServiceHandler = requireNonNull(actionServiceHandler);
 113         this.schemaContextHandler = requireNonNull(schemaContextHandler);
 114         this.transactionChainHandler = requireNonNull(transactionChainHandler);
 115         this.mountPointServiceHandler = requireNonNull(mountPointServiceHandler);
 116         this.delegRestconfSubscrService = requireNonNull(delegRestconfSubscrService);
 117     }
 118
 119     @Override
 120     public synchronized void updateHandlers(final Object... handlers) {
 121         for (final Object object : handlers) {
 122             if (object instanceof SchemaContextHandler) {
 123                 schemaContextHandler = (SchemaContextHandler) object;
 124             } else if (object instanceof ActionServiceHandler) {
 125                 actionServiceHandler = (ActionServiceHandler) object;
 126             } else if (object instanceof DOMMountPointServiceHandler) {
 127                 mountPointServiceHandler = (DOMMountPointServiceHandler) object;
 128             } else if (object instanceof TransactionChainHandler) {
 129                 transactionChainHandler = (TransactionChainHandler) object;
 130             }
 131         }
 132     }
 133
 134     @Override
 135     public Response readData(final UriInfo uriInfo) {
 136         return readData(null, uriInfo);
 137     }
 138
 139     @Override
 140     public Response readData(final String identifier, final UriInfo uriInfo) {
 141         final EffectiveModelContext schemaContextRef = this.schemaContextHandler.get();
 142         final InstanceIdentifierContext<?> instanceIdentifier = ParserIdentifier.toInstanceIdentifier(
 143                 identifier, schemaContextRef, Optional.of(this.mountPointServiceHandler.get()));
 144         final WriterParameters parameters = ReadDataTransactionUtil.parseUriParameters(instanceIdentifier, uriInfo);
 145
 146         final DOMMountPoint mountPoint = instanceIdentifier.getMountPoint();
 147         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 148                 instanceIdentifier, mountPoint, getTransactionChainHandler(mountPoint));
 149         final NormalizedNode<?, ?> node = readData(identifier, parameters.getContent(),
 150                 transactionNode, parameters.getWithDefault(), schemaContextRef, uriInfo);
 151         if (identifier != null && identifier.contains(STREAM_PATH) && identifier.contains(STREAM_ACCESS_PATH_PART)
 152                 && identifier.contains(STREAM_LOCATION_PATH_PART)) {
 153             final String value = (String) node.getValue();
 154             final String streamName = value.substring(
 155                     value.indexOf(NOTIFICATION_STREAM + RestconfConstants.SLASH));
 156             this.delegRestconfSubscrService.subscribeToStream(streamName, uriInfo);
 157         }
 158         if (node == null) {
 159             throw new RestconfDocumentedException(
 160                     "Request could not be completed because the relevant data model content does not exist",
 161                     RestconfError.ErrorType.PROTOCOL,
 162                     RestconfError.ErrorTag.DATA_MISSING);
 163         }
 164
 165         if (parameters.getContent().equals(RestconfDataServiceConstant.ReadData.ALL)
 166                     || parameters.getContent().equals(RestconfDataServiceConstant.ReadData.CONFIG)) {
 167             final QName type = node.getNodeType();
 168             return Response.status(200)
 169                     .entity(new NormalizedNodeContext(instanceIdentifier, node, parameters))
 170                     .header("ETag", '"' + type.getModule().getRevision().map(Revision::toString).orElse(null)
 171                         + type.getLocalName() + '"')
 172                     .header("Last-Modified", FORMATTER.format(LocalDateTime.now(Clock.systemUTC())))
 173                     .build();
 174         }
 175
 176         return Response.status(200).entity(new NormalizedNodeContext(instanceIdentifier, node, parameters)).build();
 177     }
 178
 179
 180     /**
 181      * Read specific type of data from data store via transaction and if identifier read data from
 182      * streams then put streams from actual schema context to datastore.
 183      *
 184      * @param identifier
 185      *             identifier of data to read
 186      * @param content
 187      *             type of data to read (config, state, all)
 188      * @param transactionNode
 189      *             {@link TransactionVarsWrapper} - wrapper for variables
 190      * @param withDefa
 191      *             vaule of with-defaults parameter
 192      * @param schemaContext
 193      *             schema context
 194      * @param uriInfo
 195      *             uri info
 196      * @return {@link NormalizedNode}
 197      */
 198     private static NormalizedNode<?, ?> readData(final String identifier, final String content,
 199                                                 final TransactionVarsWrapper transactionNode, final String withDefa,
 200                                                 final EffectiveModelContext schemaContext, final UriInfo uriInfo) {
 201         if (identifier != null && identifier.contains(STREAMS_PATH) && !identifier.contains(STREAM_PATH_PART)) {
 202             createAllYangNotificationStreams(transactionNode, schemaContext, uriInfo);
 203         }
 204         return ReadDataTransactionUtil.readData(content, transactionNode, withDefa, schemaContext);
 205     }
 206
 207     private static void createAllYangNotificationStreams(final TransactionVarsWrapper transactionNode,
 208             final EffectiveModelContext schemaContext, final UriInfo uriInfo) {
 209         final DOMDataTreeReadWriteTransaction wTx = transactionNode.getTransactionChain().newReadWriteTransaction();
 210         final boolean exist = SubscribeToStreamUtil.checkExist(schemaContext, wTx);
 211
 212         for (final NotificationDefinition notificationDefinition : schemaContext.getNotifications()) {
 213             final NotificationListenerAdapter notifiStreamXML =
 214                     CreateStreamUtil.createYangNotifiStream(notificationDefinition, schemaContext,
 215                             NotificationOutputType.XML);
 216             final NotificationListenerAdapter notifiStreamJSON =
 217                     CreateStreamUtil.createYangNotifiStream(notificationDefinition, schemaContext,
 218                             NotificationOutputType.JSON);
 219             writeNotificationStreamToDatastore(schemaContext, uriInfo, wTx, exist, notifiStreamXML);
 220             writeNotificationStreamToDatastore(schemaContext, uriInfo, wTx, exist, notifiStreamJSON);
 221         }
 222         SubscribeToStreamUtil.submitData(wTx);
 223     }
 224
 225     private static void writeNotificationStreamToDatastore(final EffectiveModelContext schemaContext,
 226             final UriInfo uriInfo, final DOMDataTreeReadWriteTransaction readWriteTransaction, final boolean exist,
 227             final NotificationListenerAdapter listener) {
 228         final URI uri = SubscribeToStreamUtil.prepareUriByStreamName(uriInfo, listener.getStreamName());
 229         final NormalizedNode<?, ?> mapToStreams =
 230                 RestconfMappingNodeUtil.mapYangNotificationStreamByIetfRestconfMonitoring(
 231                     listener.getSchemaPath().getLastComponent(), schemaContext.getNotifications(), null,
 232                     listener.getOutputType(), uri, SubscribeToStreamUtil.getMonitoringModule(schemaContext), exist);
 233         SubscribeToStreamUtil.writeDataToDS(schemaContext,
 234                 listener.getSchemaPath().getLastComponent().getLocalName(), readWriteTransaction, exist, mapToStreams);
 235     }
 236
 237     @Override
 238     public Response putData(final String identifier, final NormalizedNodeContext payload, final UriInfo uriInfo) {
 239         requireNonNull(payload);
 240
 241         final QueryParams checkedParms = checkQueryParameters(uriInfo);
 242
 243         final InstanceIdentifierContext<? extends SchemaNode> iid = payload
 244                 .getInstanceIdentifierContext();
 245
 246         PutDataTransactionUtil.validInputData(iid.getSchemaNode(), payload);
 247         PutDataTransactionUtil.validTopLevelNodeName(iid.getInstanceIdentifier(), payload);
 248         PutDataTransactionUtil.validateListKeysEqualityInPayloadAndUri(payload);
 249
 250         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
 251         final TransactionChainHandler localTransactionChainHandler;
 252         final EffectiveModelContext ref;
 253         if (mountPoint == null) {
 254             localTransactionChainHandler = this.transactionChainHandler;
 255             ref = this.schemaContextHandler.get();
 256         } else {
 257             localTransactionChainHandler = transactionChainOfMountPoint(mountPoint);
 258             ref = mountPoint.getEffectiveModelContext();
 259         }
 260
 261         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 262                 payload.getInstanceIdentifierContext(), mountPoint, localTransactionChainHandler);
 263         return PutDataTransactionUtil.putData(payload, ref, transactionNode, checkedParms.insert, checkedParms.point);
 264     }
 265
 266     private static QueryParams checkQueryParameters(final UriInfo uriInfo) {
 267         boolean insertUsed = false;
 268         boolean pointUsed = false;
 269         String insert = null;
 270         String point = null;
 271
 272         for (final Entry<String, List<String>> entry : uriInfo.getQueryParameters().entrySet()) {
 273             switch (entry.getKey()) {
 274                 case INSERT:
 275                     if (!insertUsed) {
 276                         insertUsed = true;
 277                         insert = entry.getValue().get(0);
 278                     } else {
 279                         throw new RestconfDocumentedException("Insert parameter can be used only once.",
 280                                 RestconfError.ErrorType.PROTOCOL, RestconfError.ErrorTag.BAD_ELEMENT);
 281                     }
 282                     break;
 283                 case POINT:
 284                     if (!pointUsed) {
 285                         pointUsed = true;
 286                         point = entry.getValue().get(0);
 287                     } else {
 288                         throw new RestconfDocumentedException("Point parameter can be used only once.",
 289                                 RestconfError.ErrorType.PROTOCOL, RestconfError.ErrorTag.BAD_ELEMENT);
 290                     }
 291                     break;
 292                 default:
 293                     throw new RestconfDocumentedException("Bad parameter for post: " + entry.getKey(),
 294                             RestconfError.ErrorType.PROTOCOL, RestconfError.ErrorTag.BAD_ELEMENT);
 295             }
 296         }
 297
 298         checkQueryParams(insertUsed, pointUsed, insert);
 299         return new QueryParams(insert, point);
 300     }
 301
 302     private static void checkQueryParams(final boolean insertUsed, final boolean pointUsed, final String insert) {
 303         if (pointUsed && !insertUsed) {
 304             throw new RestconfDocumentedException("Point parameter can't be used without Insert parameter.",
 305                     RestconfError.ErrorType.PROTOCOL, RestconfError.ErrorTag.BAD_ELEMENT);
 306         }
 307         if (pointUsed && (insert.equals("first") || insert.equals("last"))) {
 308             throw new RestconfDocumentedException(
 309                     "Point parameter can be used only with 'after' or 'before' values of Insert parameter.",
 310                     RestconfError.ErrorType.PROTOCOL, RestconfError.ErrorTag.BAD_ELEMENT);
 311         }
 312     }
 313
 314     @Override
 315     public Response postData(final String identifier, final NormalizedNodeContext payload, final UriInfo uriInfo) {
 316         return postData(payload, uriInfo);
 317     }
 318
 319     @Override
 320     public Response postData(final NormalizedNodeContext payload, final UriInfo uriInfo) {
 321         requireNonNull(payload);
 322         if (payload.getInstanceIdentifierContext().getSchemaNode() instanceof ActionDefinition) {
 323             return invokeAction(payload, uriInfo);
 324         }
 325
 326         final QueryParams checkedParms = checkQueryParameters(uriInfo);
 327
 328         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
 329         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 330                 payload.getInstanceIdentifierContext(), mountPoint, getTransactionChainHandler(mountPoint));
 331         return PostDataTransactionUtil.postData(uriInfo, payload, transactionNode,
 332                 getSchemaContext(mountPoint), checkedParms.insert, checkedParms.point);
 333     }
 334
 335     @Override
 336     public Response deleteData(final String identifier) {
 337         final InstanceIdentifierContext<?> instanceIdentifier = ParserIdentifier.toInstanceIdentifier(
 338                 identifier, this.schemaContextHandler.get(), Optional.of(this.mountPointServiceHandler.get()));
 339
 340         final DOMMountPoint mountPoint = instanceIdentifier.getMountPoint();
 341         final TransactionChainHandler localTransactionChainHandler;
 342         if (mountPoint == null) {
 343             localTransactionChainHandler = this.transactionChainHandler;
 344         } else {
 345             localTransactionChainHandler = transactionChainOfMountPoint(mountPoint);
 346         }
 347
 348         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(instanceIdentifier, mountPoint,
 349                 localTransactionChainHandler);
 350         return DeleteDataTransactionUtil.deleteData(transactionNode);
 351     }
 352
 353     @Override
 354     public PatchStatusContext patchData(final String identifier, final PatchContext context, final UriInfo uriInfo) {
 355         return patchData(context, uriInfo);
 356     }
 357
 358     @Override
 359     public PatchStatusContext patchData(final PatchContext context, final UriInfo uriInfo) {
 360         final DOMMountPoint mountPoint = requireNonNull(context).getInstanceIdentifierContext().getMountPoint();
 361         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 362                 context.getInstanceIdentifierContext(), mountPoint, getTransactionChainHandler(mountPoint));
 363         return PatchDataTransactionUtil.patchData(context, transactionNode, getSchemaContext(mountPoint));
 364     }
 365
 366     @Override
 367     public Response patchData(final String identifier, final NormalizedNodeContext payload, final UriInfo uriInfo) {
 368         requireNonNull(payload);
 369
 370         final InstanceIdentifierContext<? extends SchemaNode> iid = payload
 371                 .getInstanceIdentifierContext();
 372
 373         PutDataTransactionUtil.validInputData(iid.getSchemaNode(), payload);
 374         PutDataTransactionUtil.validTopLevelNodeName(iid.getInstanceIdentifier(), payload);
 375         PutDataTransactionUtil.validateListKeysEqualityInPayloadAndUri(payload);
 376
 377         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
 378         final TransactionChainHandler localTransactionChainHandler;
 379         final EffectiveModelContext ref;
 380         if (mountPoint == null) {
 381             localTransactionChainHandler = this.transactionChainHandler;
 382             ref = this.schemaContextHandler.get();
 383         } else {
 384             localTransactionChainHandler = transactionChainOfMountPoint(mountPoint);
 385             ref = mountPoint.getEffectiveModelContext();
 386         }
 387
 388         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 389                 payload.getInstanceIdentifierContext(), mountPoint, localTransactionChainHandler);
 390
 391         return PlainPatchDataTransactionUtil.patchData(payload, transactionNode, ref);
 392     }
 393
 394     private TransactionChainHandler getTransactionChainHandler(final DOMMountPoint mountPoint) {
 395         return mountPoint == null ? transactionChainHandler : transactionChainOfMountPoint(mountPoint);
 396     }
 397
 398     private EffectiveModelContext getSchemaContext(final DOMMountPoint mountPoint) {
 399         return mountPoint == null ? schemaContextHandler.get() : mountPoint.getEffectiveModelContext();
 400     }
 401
 402     /**
 403      * Prepare transaction chain to access data of mount point.
 404      * @param mountPoint
 405      *            mount point reference
 406      * @return {@link TransactionChainHandler}
 407      */
 408     private static TransactionChainHandler transactionChainOfMountPoint(final @NonNull DOMMountPoint mountPoint) {
 409         final Optional<DOMDataBroker> domDataBrokerService = mountPoint.getService(DOMDataBroker.class);
 410         if (domDataBrokerService.isPresent()) {
 411             return new TransactionChainHandler(domDataBrokerService.get());
 412         }
 413
 414         final String errMsg = "DOM data broker service isn't available for mount point " + mountPoint.getIdentifier();
 415         LOG.warn(errMsg);
 416         throw new RestconfDocumentedException(errMsg);
 417     }
 418
 419     /**
 420      * Invoke Action operation.
 421      *
 422      * @param payload
 423      *             {@link NormalizedNodeContext} - the body of the operation
 424      * @param uriInfo
 425      *             URI info
 426      * @return {@link NormalizedNodeContext} wrapped in {@link Response}
 427      */
 428     public Response invokeAction(final NormalizedNodeContext payload, final UriInfo uriInfo) {
 429         final InstanceIdentifierContext<?> context = payload.getInstanceIdentifierContext();
 430         final DOMMountPoint mountPoint = context.getMountPoint();
 431         final SchemaPath schemaPath = context.getSchemaNode().getPath();
 432         final YangInstanceIdentifier yangIIdContext = context.getInstanceIdentifier();
 433         final NormalizedNode<?, ?> data = payload.getData();
 434
 435         if (yangIIdContext.isEmpty() && !RestconfDataServiceConstant.NETCONF_BASE_QNAME.equals(data.getNodeType())) {
 436             throw new RestconfDocumentedException("Instance identifier need to contain at least one path argument",
 437                 ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
 438         }
 439
 440         final DOMActionResult response;
 441         final EffectiveModelContext schemaContextRef;
 442         if (mountPoint != null) {
 443             response = RestconfInvokeOperationsUtil.invokeActionViaMountPoint(mountPoint, (ContainerNode) data,
 444                 schemaPath, yangIIdContext);
 445             schemaContextRef = mountPoint.getEffectiveModelContext();
 446         } else {
 447             response = RestconfInvokeOperationsUtil.invokeAction((ContainerNode) data, schemaPath,
 448                 this.actionServiceHandler, yangIIdContext);
 449             schemaContextRef = this.schemaContextHandler.get();
 450         }
 451         final DOMActionResult result = RestconfInvokeOperationsUtil.checkActionResponse(response);
 452
 453         ActionDefinition resultNodeSchema = null;
 454         ContainerNode resultData = null;
 455         if (result != null) {
 456             final Optional<ContainerNode> optOutput = result.getOutput();
 457             if (optOutput.isPresent()) {
 458                 resultData = optOutput.get();
 459                 resultNodeSchema = (ActionDefinition) context.getSchemaNode();
 460             }
 461         }
 462
 463         if (resultData != null && resultData.getValue().isEmpty()) {
 464             throw new WebApplicationException(Response.Status.NO_CONTENT);
 465         }
 466
 467         return Response.status(200).entity(new NormalizedNodeContext(new InstanceIdentifierContext<>(yangIIdContext,
 468                 resultNodeSchema, mountPoint, schemaContextRef), resultData)).build();
 469     }
 470 }