plugins/netconf-client-mdsal/src/main/java/org/opendaylight/netconf/client/mdsal/impl/NetconfMessageTransformUtil.java

   1 /*
   2  * Copyright (c) 2014 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.netconf.client.mdsal.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11 import static org.opendaylight.yang.svc.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.YangModuleInfoImpl.qnameOf;
  12
  13 import com.google.common.base.Preconditions;
  14 import com.google.common.collect.ImmutableList;
  15 import java.io.IOException;
  16 import java.time.Instant;
  17 import java.time.format.DateTimeParseException;
  18 import java.util.ArrayDeque;
  19 import java.util.Collection;
  20 import java.util.Iterator;
  21 import java.util.List;
  22 import java.util.Map;
  23 import java.util.Map.Entry;
  24 import java.util.Optional;
  25 import javax.xml.stream.XMLStreamException;
  26 import javax.xml.stream.XMLStreamWriter;
  27 import javax.xml.transform.dom.DOMResult;
  28 import javax.xml.transform.dom.DOMSource;
  29 import org.eclipse.jdt.annotation.NonNull;
  30 import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
  31 import org.opendaylight.netconf.api.DocumentedException;
  32 import org.opendaylight.netconf.api.EffectiveOperation;
  33 import org.opendaylight.netconf.api.NamespaceURN;
  34 import org.opendaylight.netconf.api.messages.NetconfMessage;
  35 import org.opendaylight.netconf.api.messages.NotificationMessage;
  36 import org.opendaylight.netconf.api.messages.RpcMessage;
  37 import org.opendaylight.netconf.api.messages.RpcReplyMessage;
  38 import org.opendaylight.netconf.api.xml.XmlElement;
  39 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
  40 import org.opendaylight.netconf.api.xml.XmlUtil;
  41 import org.opendaylight.netconf.common.mdsal.NormalizedDataUtil;
  42 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.Candidate;
  43 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.CommitInput;
  44 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.CopyConfig;
  45 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.DiscardChangesInput;
  46 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.EditConfig;
  47 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.Get;
  48 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.GetConfig;
  49 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.Lock;
  50 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.Unlock;
  51 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.Validate;
  52 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.edit.config.input.EditContent;
  53 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.get.config.output.Data;
  54 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.netconf.base._1._0.rev110601.get.input.Filter;
  55 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.netconf.monitoring.rev101004.NetconfState;
  56 import org.opendaylight.yangtools.yang.common.QName;
  57 import org.opendaylight.yangtools.yang.common.YangConstants;
  58 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  59 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  60 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  61 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  62 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  63 import org.opendaylight.yangtools.yang.data.api.schema.AnyxmlNode;
  64 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  65 import org.opendaylight.yangtools.yang.data.api.schema.DOMSourceAnyxmlNode;
  66 import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
  67 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedMetadata;
  68 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  69 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
  70 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeWriter;
  71 import org.opendaylight.yangtools.yang.data.api.schema.stream.YangInstanceIdentifierWriter;
  72 import org.opendaylight.yangtools.yang.data.codec.xml.XMLStreamNormalizedNodeStreamWriter;
  73 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedMetadata;
  74 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
  75 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizationResultHolder;
  76 import org.opendaylight.yangtools.yang.data.impl.schema.SchemaOrderedNormalizedNodeWriter;
  77 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
  78 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext;
  79 import org.opendaylight.yangtools.yang.data.util.DataSchemaContext.PathMixin;
  80 import org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree;
  81 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  82 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
  83 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
  84 import org.slf4j.Logger;
  85 import org.slf4j.LoggerFactory;
  86 import org.w3c.dom.Document;
  87 import org.w3c.dom.Element;
  88
  89 public final class NetconfMessageTransformUtil {
  90     private static final Logger LOG = LoggerFactory.getLogger(NetconfMessageTransformUtil.class);
  91
  92     public static final String MESSAGE_ID_PREFIX = "m";
  93
  94     // Blank document used for creation of new DOM nodes
  95     private static final Document BLANK_DOCUMENT = XmlUtil.newDocument();
  96
  97     public static final @NonNull QName IETF_NETCONF_MONITORING =
  98             QName.create(NetconfState.QNAME, "ietf-netconf-monitoring").intern();
  99
 100     public static final @NonNull NodeIdentifier NETCONF_DATA_NODEID = NodeIdentifier.create(Data.QNAME);
 101
 102     public static final @NonNull QName NETCONF_RPC_REPLY_QNAME = qnameOf(RpcReplyMessage.ELEMENT_NAME);
 103     public static final @NonNull NodeIdentifier NETCONF_RPC_REPLY_NODEID =
 104         NodeIdentifier.create(NETCONF_RPC_REPLY_QNAME);
 105
 106     public static final @NonNull NodeIdentifier NETCONF_ERROR_OPTION_NODEID =
 107         NodeIdentifier.create(qnameOf("error-option"));
 108     public static final @NonNull NodeIdentifier NETCONF_RUNNING_NODEID = NodeIdentifier.create(qnameOf("running"));
 109     public static final @NonNull NodeIdentifier NETCONF_SOURCE_NODEID = NodeIdentifier.create(qnameOf("source"));
 110     public static final @NonNull NodeIdentifier NETCONF_CANDIDATE_NODEID = NodeIdentifier.create(Candidate.QNAME);
 111     public static final @NonNull NodeIdentifier NETCONF_TARGET_NODEID = NodeIdentifier.create(qnameOf("target"));
 112     public static final @NonNull NodeIdentifier NETCONF_CONFIG_NODEID = NodeIdentifier.create(qnameOf("config"));
 113
 114     public static final @NonNull NodeIdentifier NETCONF_VALIDATE_NODEID = NodeIdentifier.create(Validate.QNAME);
 115     public static final @NonNull NodeIdentifier NETCONF_COPY_CONFIG_NODEID = NodeIdentifier.create(CopyConfig.QNAME);
 116
 117     private static final @NonNull QName NETCONF_OPERATION_QNAME_LEGACY =
 118         QName.create(NamespaceURN.BASE, XmlNetconfConstants.OPERATION_ATTR_KEY).intern();
 119
 120     public static final @NonNull NodeIdentifier NETCONF_DEFAULT_OPERATION_NODEID =
 121         NodeIdentifier.create(qnameOf("default-operation"));
 122     public static final @NonNull NodeIdentifier NETCONF_EDIT_CONFIG_NODEID = NodeIdentifier.create(EditConfig.QNAME);
 123     public static final @NonNull NodeIdentifier NETCONF_GET_CONFIG_NODEID = NodeIdentifier.create(GetConfig.QNAME);
 124     public static final @NonNull NodeIdentifier NETCONF_GET_NODEID = NodeIdentifier.create(Get.QNAME);
 125     public static final @NonNull QName NETCONF_RPC_QNAME = qnameOf(RpcMessage.ELEMENT_NAME);
 126
 127     public static final @NonNull NodeIdentifier NETCONF_LOCK_NODEID = NodeIdentifier.create(Lock.QNAME);
 128     public static final @NonNull NodeIdentifier NETCONF_UNLOCK_NODEID = NodeIdentifier.create(Unlock.QNAME);
 129     public static final @NonNull NodeIdentifier EDIT_CONTENT_NODEID = NodeIdentifier.create(EditContent.QNAME);
 130
 131     // Discard changes message
 132     public static final @NonNull ContainerNode DISCARD_CHANGES_RPC_CONTENT = ImmutableNodes.newContainerBuilder()
 133             .withNodeIdentifier(NodeIdentifier.create(DiscardChangesInput.QNAME)).build();
 134
 135     // Commit changes message
 136     public static final @NonNull ContainerNode COMMIT_RPC_CONTENT = ImmutableNodes.newContainerBuilder()
 137             .withNodeIdentifier(NodeIdentifier.create(CommitInput.QNAME)).build();
 138
 139     // Get message
 140     public static final @NonNull ContainerNode GET_RPC_CONTENT = ImmutableNodes.newContainerBuilder()
 141             .withNodeIdentifier(NETCONF_GET_NODEID).build();
 142
 143     public static final @NonNull AnyxmlNode<?> EMPTY_FILTER = buildFilterStructure(newFilterElement());
 144
 145     private NetconfMessageTransformUtil() {
 146         // Hidden on purpose
 147     }
 148
 149     /**
 150      * Creation of the subtree filter structure using {@link YangInstanceIdentifier} path.
 151      *
 152      * @param identifier parent path / query
 153      * @param ctx        mountpoint schema context
 154      * @return created DOM structure with subtree filter
 155      */
 156     public static AnyxmlNode<?> toFilterStructure(final YangInstanceIdentifier identifier,
 157                                                        final EffectiveModelContext ctx) {
 158         final Element element = newFilterElement();
 159         try {
 160             NormalizedDataUtil.writeFilter(identifier, new DOMResult(element), ctx, null);
 161         } catch (IOException | XMLStreamException e) {
 162             throw new IllegalStateException("Unable to serialize filter element for path " + identifier, e);
 163         }
 164         return buildFilterStructure(element);
 165     }
 166
 167     /**
 168      * Creation of the subtree filter structure using list of parent {@link YangInstanceIdentifier}
 169      * and specific selection fields. Field paths are relative to parent query path.
 170      *
 171      * @param fieldsFilters list of: parent path and selection fields
 172      * @param ctx           mountpoint schema context
 173      * @return created DOM structure with subtree filter
 174      */
 175     public static AnyxmlNode<?> toFilterStructure(final List<FieldsFilter> fieldsFilters,
 176                                                   final EffectiveModelContext ctx) {
 177         Preconditions.checkState(!fieldsFilters.isEmpty(), "An empty list of subtree filters is not allowed");
 178         final Element element = newFilterElement();
 179
 180         for (final FieldsFilter filter : fieldsFilters) {
 181             try {
 182                 NormalizedDataUtil.writeFilter(filter.path(), new DOMResult(element), ctx, null, filter.fields());
 183             } catch (IOException | XMLStreamException e) {
 184                 throw new IllegalStateException(String.format(
 185                         "Unable to serialize filter element for path %s with fields: %s",
 186                         filter.path(), filter.fields()), e);
 187             }
 188         }
 189         return buildFilterStructure(element);
 190     }
 191
 192     private static Element newFilterElement() {
 193         final var element = BLANK_DOCUMENT.createElementNS(NamespaceURN.BASE, "filter");
 194         element.setAttribute("type", "subtree");
 195         return element;
 196     }
 197
 198     private static AnyxmlNode<?> buildFilterStructure(final Element element) {
 199         return ImmutableNodes.newAnyxmlBuilder(DOMSource.class)
 200             .withNodeIdentifier(new NodeIdentifier(Filter.QNAME))
 201             .withValue(new DOMSource(element))
 202             .build();
 203     }
 204
 205     public static NodeIdentifier toId(final PathArgument arg) {
 206         return arg instanceof NodeIdentifier nodeId ? nodeId : toId(arg.getNodeType());
 207     }
 208
 209     public static NodeIdentifier toId(final QName nodeType) {
 210         return new NodeIdentifier(nodeType);
 211     }
 212
 213     public static Element getDataSubtree(final Document doc) {
 214         return (Element) doc.getElementsByTagNameNS(NamespaceURN.BASE, "data").item(0);
 215     }
 216
 217     public static boolean isDataRetrievalOperation(final QName rpc) {
 218         return YangConstants.NETCONF_NAMESPACE.equals(rpc.getNamespace())
 219             && (GetConfig.QNAME.getLocalName().equals(rpc.getLocalName())
 220                 || Get.QNAME.getLocalName().equals(rpc.getLocalName()));
 221     }
 222
 223     @Deprecated
 224     public static @NonNull ContainerNode wrap(final QName name, final DataContainerChild... node) {
 225         return wrap(toId(name), node);
 226     }
 227
 228     public static @NonNull ContainerNode wrap(final NodeIdentifier name, final DataContainerChild... node) {
 229         return ImmutableNodes.newContainerBuilder()
 230             .withNodeIdentifier(name)
 231             .withValue(ImmutableList.copyOf(node))
 232             .build();
 233     }
 234
 235     /**
 236      * Create edit-config structure to invoke {@code operation} with {@code lastChildOverride} data on {@code dataPath}.
 237      *
 238      * @param ctx {@link EffectiveModelContext} device's model context
 239      * @param dataPath {@link YangInstanceIdentifier} path to data in device's data-store
 240      * @param operation Optional of {@link EffectiveOperation} action to be invoked
 241      * @param lastChildOverride Optional of {@code NormalizedNode} data on which action will be invoked
 242      * @return {@link DOMSourceAnyxmlNode} containing edit-config structure
 243      */
 244     public static AnyxmlNode<DOMSource> createEditConfigAnyxml(final EffectiveModelContext ctx,
 245             final YangInstanceIdentifier dataPath, final Optional<EffectiveOperation> operation,
 246             final Optional<NormalizedNode> lastChildOverride) {
 247         if (dataPath.isEmpty()) {
 248             final var override = lastChildOverride.orElseThrow(() -> new IllegalArgumentException(
 249                 "Data has to be present when creating structure for top level element"));
 250             Preconditions.checkArgument(override instanceof DataContainerChild,
 251                 "Data has to be either container or a list node when creating structure for top level element, "
 252                     + "but was: %s", override);
 253         }
 254
 255         final var element = BLANK_DOCUMENT.createElementNS(NamespaceURN.BASE, XmlNetconfConstants.CONFIG_KEY);
 256         final var metadata = operation.map(o -> leafMetadata(dataPath, o)).orElse(null);
 257         try {
 258             if (lastChildOverride.isPresent()) {
 259                 // TODO do not transform this into result and then to xml, rework the whole pipeline to directly write
 260                 // into xml
 261
 262                 final var parentPath = dataPath.isEmpty() ? dataPath : dataPath.coerceParent();
 263                 var result = new NormalizationResultHolder();
 264                 try (var streamWriter = ImmutableNormalizedNodeStreamWriter.from(result)) {
 265                     try (var iidWriter = YangInstanceIdentifierWriter.open(streamWriter, ctx, parentPath);
 266                          var nnWriter = NormalizedNodeWriter.forStreamWriter(streamWriter)) {
 267                         nnWriter.write(lastChildOverride.orElseThrow());
 268                     }
 269                 }
 270                 NormalizedDataUtil.writeNormalizedNode(result.getResult().data(), metadata, new DOMResult(element), ctx,
 271                     null);
 272             } else {
 273                 NormalizedDataUtil.writeNormalizedNode(dataPath, metadata, new DOMResult(element), ctx, null);
 274             }
 275         } catch (final IOException | XMLStreamException e) {
 276             throw new IllegalStateException("Unable to serialize edit config content element for path " + dataPath, e);
 277         }
 278
 279         return ImmutableNodes.newAnyxmlBuilder(DOMSource.class)
 280             .withNodeIdentifier(NETCONF_CONFIG_NODEID)
 281             .withValue(new DOMSource(element))
 282             .build();
 283     }
 284
 285     private static NormalizedMetadata leafMetadata(final YangInstanceIdentifier path, final EffectiveOperation oper) {
 286         record BuilderAndArg(ImmutableNormalizedMetadata.Builder builder, PathArgument arg) {
 287             BuilderAndArg {
 288                 requireNonNull(builder);
 289                 requireNonNull(arg);
 290             }
 291         }
 292
 293         final var args = path.getPathArguments();
 294         final var builders = new ArrayDeque<BuilderAndArg>(args.size());
 295
 296         // Step one: open builders
 297         for (PathArgument arg : args) {
 298             builders.push(new BuilderAndArg(ImmutableNormalizedMetadata.builder(), arg));
 299         }
 300
 301         // Step two: set the top builder's metadata
 302         builders.peek().builder.withAnnotation(NETCONF_OPERATION_QNAME_LEGACY, oper.xmlValue());
 303
 304         // Step three: build the tree
 305         while (true) {
 306             final var current = builders.pop();
 307             final var currentMeta = current.builder.build();
 308             final var parent = builders.peek();
 309             if (parent != null) {
 310                 parent.builder.withChild(current.arg, currentMeta);
 311             } else {
 312                 return currentMeta;
 313             }
 314         }
 315     }
 316
 317     public static DataContainerChild createEditConfigStructure(final EffectiveModelContext ctx,
 318             final YangInstanceIdentifier dataPath, final Optional<EffectiveOperation> operation,
 319             final Optional<NormalizedNode> lastChildOverride) {
 320         return ImmutableNodes.newChoiceBuilder()
 321             .withNodeIdentifier(EDIT_CONTENT_NODEID)
 322             .withChild(createEditConfigAnyxml(ctx, dataPath, operation, lastChildOverride))
 323             .build();
 324     }
 325
 326     public static @NonNull Absolute toPath(final QName rpc) {
 327         return Absolute.of(rpc);
 328     }
 329
 330     public static Map.Entry<Instant, XmlElement> stripNotification(final NetconfMessage message) {
 331         final XmlElement xmlElement = XmlElement.fromDomDocument(message.getDocument());
 332         final List<XmlElement> childElements = xmlElement.getChildElements();
 333         Preconditions.checkArgument(childElements.size() == 2, "Unable to parse notification %s, unexpected format."
 334                 + "\nExpected 2 childElements, actual childElements size is %s", message, childElements.size());
 335
 336         final XmlElement eventTimeElement;
 337         final XmlElement notificationElement;
 338
 339         if (childElements.get(0).getName().equals(XmlNetconfConstants.EVENT_TIME)) {
 340             eventTimeElement = childElements.get(0);
 341             notificationElement = childElements.get(1);
 342         } else if (childElements.get(1).getName().equals(XmlNetconfConstants.EVENT_TIME)) {
 343             eventTimeElement = childElements.get(1);
 344             notificationElement = childElements.get(0);
 345         } else {
 346             throw new IllegalArgumentException(
 347                 "Notification payload does not contain " + XmlNetconfConstants.EVENT_TIME + " " + message);
 348         }
 349
 350         try {
 351             return Map.entry(
 352                     NotificationMessage.RFC3339_DATE_PARSER.apply(eventTimeElement.getTextContent()),
 353                     notificationElement);
 354         } catch (final DocumentedException e) {
 355             throw new IllegalArgumentException(
 356                 "Notification payload does not contain " + XmlNetconfConstants.EVENT_TIME + " " + message, e);
 357         } catch (final DateTimeParseException e) {
 358             LOG.warn("Unable to parse event time from {}. Setting time to {}", eventTimeElement,
 359                 NotificationMessage.UNKNOWN_EVENT_TIME, e);
 360             return Map.entry(NotificationMessage.UNKNOWN_EVENT_TIME, notificationElement);
 361         }
 362     }
 363
 364     public static DOMResult prepareDomResultForRpcRequest(final QName rpcQName, final MessageCounter counter) {
 365         final Document document = XmlUtil.newDocument();
 366         final Element rpcNS =
 367                 document.createElementNS(NETCONF_RPC_QNAME.getNamespace().toString(), NETCONF_RPC_QNAME.getLocalName());
 368         // set msg id
 369         rpcNS.setAttribute(XmlNetconfConstants.MESSAGE_ID, counter.getNewMessageId(MESSAGE_ID_PREFIX));
 370         final Element elementNS = document.createElementNS(rpcQName.getNamespace().toString(), rpcQName.getLocalName());
 371         rpcNS.appendChild(elementNS);
 372         document.appendChild(rpcNS);
 373         return new DOMResult(elementNS);
 374     }
 375
 376     public static DOMResult prepareDomResultForActionRequest(final DataSchemaContextTree dataSchemaContextTree,
 377             final DOMDataTreeIdentifier domDataTreeIdentifier, final MessageCounter counter, final QName action) {
 378         final Document document = XmlUtil.newDocument();
 379         final Element rpcNS =
 380                 document.createElementNS(NETCONF_RPC_QNAME.getNamespace().toString(), NETCONF_RPC_QNAME.getLocalName());
 381         // set msg id
 382         rpcNS.setAttribute(XmlNetconfConstants.MESSAGE_ID, counter.getNewMessageId(MESSAGE_ID_PREFIX));
 383
 384         final Element actionNS = document.createElementNS(YangConstants.RFC6020_YANG_NAMESPACE_STRING, "action");
 385         final DataSchemaContext rootSchemaContextNode = dataSchemaContextTree.getRoot();
 386         final Element actionData = prepareActionData(rootSchemaContextNode, actionNS,
 387                 domDataTreeIdentifier.path().getPathArguments().iterator(), document);
 388
 389         final Element specificActionElement =
 390                 document.createElementNS(action.getNamespace().toString(), action.getLocalName());
 391         actionData.appendChild(specificActionElement);
 392         rpcNS.appendChild(actionNS);
 393         document.appendChild(rpcNS);
 394         return new DOMResult(specificActionElement);
 395     }
 396
 397     private static Element prepareActionData(final DataSchemaContext currentParentSchemaNode,
 398             final Element actionNS, final Iterator<PathArgument> iterator, final Document document) {
 399         if (iterator.hasNext()) {
 400             final PathArgument next = iterator.next();
 401
 402             final DataSchemaContext current = currentParentSchemaNode instanceof DataSchemaContext.Composite composite
 403                 ? composite.childByArg(next) : null;
 404             Preconditions.checkArgument(current != null, "Invalid input: schema for argument %s not found", next);
 405
 406             if (current instanceof PathMixin) {
 407                 return prepareActionData(current, actionNS, iterator, document);
 408             }
 409
 410             final QName actualNS = next.getNodeType();
 411             final Element actualElement = document.createElementNS(actualNS.getNamespace().toString(),
 412                     actualNS.getLocalName());
 413             if (next instanceof NodeWithValue) {
 414                 actualElement.setNodeValue(((NodeWithValue<?>) next).getValue().toString());
 415             } else if (next instanceof NodeIdentifierWithPredicates) {
 416                 for (Entry<QName, Object> entry : ((NodeIdentifierWithPredicates) next).entrySet()) {
 417                     final Element entryElement = document.createElementNS(entry.getKey().getNamespace().toString(),
 418                             entry.getKey().getLocalName());
 419                     entryElement.setTextContent(entry.getValue().toString());
 420                     entryElement.setNodeValue(entry.getValue().toString());
 421                     actualElement.appendChild(entryElement);
 422                 }
 423             }
 424             actionNS.appendChild(actualElement);
 425             return prepareActionData(current, actualElement, iterator, document);
 426         } else {
 427             return actionNS;
 428         }
 429     }
 430
 431     public static void writeNormalizedOperationInput(final ContainerNode normalized, final DOMResult result,
 432             final Absolute operationPath, final EffectiveModelContext baseNetconfCtx)
 433                 throws IOException, XMLStreamException {
 434         final var stack = SchemaInferenceStack.of(baseNetconfCtx, operationPath);
 435         stack.enterSchemaTree(YangConstants.operationInputQName(operationPath.lastNodeIdentifier().getModule()));
 436         final var inputInference = stack.toSchemaTreeInference();
 437
 438         final XMLStreamWriter writer = NormalizedDataUtil.XML_FACTORY.createXMLStreamWriter(result);
 439         try {
 440             try (NormalizedNodeStreamWriter normalizedNodeStreamWriter =
 441                     XMLStreamNormalizedNodeStreamWriter.create(writer, inputInference)) {
 442                 try (SchemaOrderedNormalizedNodeWriter normalizedNodeWriter =
 443                         new SchemaOrderedNormalizedNodeWriter(normalizedNodeStreamWriter, inputInference)) {
 444                     final Collection<DataContainerChild> value = normalized.body();
 445                     normalizedNodeWriter.write(value);
 446                     normalizedNodeWriter.flush();
 447                 }
 448             }
 449         } finally {
 450             try {
 451                 writer.close();
 452             } catch (final XMLStreamException e) {
 453                 LOG.warn("Unable to close resource properly", e);
 454             }
 455         }
 456     }
 457 }