opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/util/compat/DataNormalizationOperation.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.controller.md.sal.common.impl.util.compat;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.collect.ImmutableMap;
  12 import com.google.common.collect.ImmutableSet;
  13 import com.google.common.collect.Iterables;
  14 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  15 import java.util.Collections;
  16 import java.util.HashSet;
  17 import java.util.List;
  18 import java.util.Map;
  19 import java.util.Map.Entry;
  20 import java.util.Set;
  21 import java.util.concurrent.ConcurrentHashMap;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.gaul.modernizer_maven_annotations.SuppressModernizer;
  24 import org.opendaylight.yangtools.concepts.Identifiable;
  25 import org.opendaylight.yangtools.yang.common.QName;
  26 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
  27 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  30 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  31 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  33 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  34 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
  35 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
  36 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
  37 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
  38 import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
  39 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
  40 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  41 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  42 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  43 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  44 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  45 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  46 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  47 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  48 import org.opendaylight.yangtools.yang.model.util.EffectiveAugmentationSchema;
  49
  50 @Deprecated
  51 public abstract class DataNormalizationOperation<T extends PathArgument> implements Identifiable<T> {
  52
  53     private final T identifier;
  54     private final DataSchemaNode dataSchemaNode;
  55
  56     @Override
  57     public T getIdentifier() {
  58         return identifier;
  59     }
  60
  61     protected DataNormalizationOperation(final T identifier, final SchemaNode schema) {
  62         this.identifier = identifier;
  63         dataSchemaNode = schema instanceof DataSchemaNode ? (DataSchemaNode)schema : null;
  64     }
  65
  66     public boolean isMixin() {
  67         return false;
  68     }
  69
  70
  71     public boolean isKeyedEntry() {
  72         return false;
  73     }
  74
  75     protected Set<QName> getQNameIdentifiers() {
  76         return Collections.singleton(identifier.getNodeType());
  77     }
  78
  79     public abstract DataNormalizationOperation<?> getChild(PathArgument child) throws DataNormalizationException;
  80
  81     public abstract DataNormalizationOperation<?> getChild(QName child) throws DataNormalizationException;
  82
  83     public abstract boolean isLeaf();
  84
  85     @SuppressModernizer
  86     public Optional<DataSchemaNode> getDataSchemaNode() {
  87         return Optional.fromNullable(dataSchemaNode);
  88     }
  89
  90     private abstract static class SimpleTypeNormalization<T extends PathArgument>
  91             extends DataNormalizationOperation<T> {
  92         SimpleTypeNormalization(final T identifier, final DataSchemaNode potential) {
  93             super(identifier,potential);
  94         }
  95
  96         @Override
  97         public DataNormalizationOperation<?> getChild(final PathArgument child) {
  98             return null;
  99         }
 100
 101         @Override
 102         public DataNormalizationOperation<?> getChild(final QName child) {
 103             return null;
 104         }
 105
 106         @Override
 107         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 108             return null;
 109         }
 110
 111         @Override
 112         public boolean isLeaf() {
 113             return true;
 114         }
 115     }
 116
 117     private static final class LeafNormalization extends SimpleTypeNormalization<NodeIdentifier> {
 118         LeafNormalization(final LeafSchemaNode potential) {
 119             super(new NodeIdentifier(potential.getQName()),potential);
 120         }
 121     }
 122
 123     private static final class LeafListEntryNormalization extends SimpleTypeNormalization<NodeWithValue> {
 124         LeafListEntryNormalization(final LeafListSchemaNode potential) {
 125             super(new NodeWithValue(potential.getQName(), null),potential);
 126         }
 127
 128         @Override
 129         public boolean isKeyedEntry() {
 130             return true;
 131         }
 132     }
 133
 134     private abstract static class CompositeNodeNormalizationOperation<T extends PathArgument>
 135             extends DataNormalizationOperation<T> {
 136         CompositeNodeNormalizationOperation(final T identifier, final DataSchemaNode schema) {
 137             super(identifier,schema);
 138         }
 139
 140         @Override
 141         public boolean isLeaf() {
 142             return false;
 143         }
 144     }
 145
 146     private abstract static class DataContainerNormalizationOperation<T extends PathArgument>
 147             extends CompositeNodeNormalizationOperation<T> {
 148         private final DataNodeContainer schema;
 149         private final Map<QName, DataNormalizationOperation<?>> byQName;
 150         private final Map<PathArgument, DataNormalizationOperation<?>> byArg;
 151
 152         DataContainerNormalizationOperation(final T identifier, final DataNodeContainer schema,
 153                 final DataSchemaNode node) {
 154             super(identifier,node);
 155             this.schema = schema;
 156             this.byArg = new ConcurrentHashMap<>();
 157             this.byQName = new ConcurrentHashMap<>();
 158         }
 159
 160         @Override
 161         public DataNormalizationOperation<?> getChild(final PathArgument child) throws DataNormalizationException {
 162             DataNormalizationOperation<?> potential = byArg.get(child);
 163             if (potential != null) {
 164                 return potential;
 165             }
 166             potential = fromLocalSchema(child);
 167             return register(potential);
 168         }
 169
 170         @Override
 171         public DataNormalizationOperation<?> getChild(final QName child) throws DataNormalizationException {
 172             DataNormalizationOperation<?> potential = byQName.get(child);
 173             if (potential != null) {
 174                 return potential;
 175             }
 176             potential = fromLocalSchemaAndQName(schema, child);
 177             return register(potential);
 178         }
 179
 180         private DataNormalizationOperation<?> fromLocalSchema(final PathArgument child)
 181                 throws DataNormalizationException {
 182             if (child instanceof AugmentationIdentifier) {
 183                 return fromSchemaAndQNameChecked(schema, ((AugmentationIdentifier) child).getPossibleChildNames()
 184                         .iterator().next());
 185             }
 186             return fromSchemaAndQNameChecked(schema, child.getNodeType());
 187         }
 188
 189         protected DataNormalizationOperation<?> fromLocalSchemaAndQName(final DataNodeContainer schema2,
 190                 final QName child) throws DataNormalizationException {
 191             return fromSchemaAndQNameChecked(schema2, child);
 192         }
 193
 194         private DataNormalizationOperation<?> register(final DataNormalizationOperation<?> potential) {
 195             if (potential != null) {
 196                 byArg.put(potential.getIdentifier(), potential);
 197                 for (final QName qname : potential.getQNameIdentifiers()) {
 198                     byQName.put(qname, potential);
 199                 }
 200             }
 201             return potential;
 202         }
 203
 204         private static DataNormalizationOperation<?> fromSchemaAndQNameChecked(final DataNodeContainer schema,
 205                 final QName child) throws DataNormalizationException {
 206
 207             final DataSchemaNode result = findChildSchemaNode(schema, child);
 208             if (result == null) {
 209                 throw new DataNormalizationException(String.format(
 210                         "Supplied QName %s is not valid according to schema %s, potential children nodes: %s", child,
 211                         schema,schema.getChildNodes()));
 212             }
 213
 214             // We try to look up if this node was added by augmentation
 215             if (schema instanceof DataSchemaNode && result.isAugmenting()) {
 216                 return fromAugmentation(schema, (AugmentationTarget) schema, result);
 217             }
 218             return fromDataSchemaNode(result);
 219         }
 220     }
 221
 222     private static final class ListItemNormalization extends
 223             DataContainerNormalizationOperation<NodeIdentifierWithPredicates> {
 224         ListItemNormalization(final NodeIdentifierWithPredicates identifier, final ListSchemaNode schema) {
 225             super(identifier, schema, schema);
 226         }
 227
 228         @Override
 229         @SuppressFBWarnings("BC_UNCONFIRMED_CAST")
 230         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 231             final DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> builder = Builders
 232                     .mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) currentArg);
 233             for (final Entry<QName, Object> keyValue : ((NodeIdentifierWithPredicates) currentArg).entrySet()) {
 234                 builder.addChild(Builders.leafBuilder()
 235                         //
 236                         .withNodeIdentifier(new NodeIdentifier(keyValue.getKey())).withValue(keyValue.getValue())
 237                         .build());
 238             }
 239             return builder.build();
 240         }
 241
 242         @Override
 243         public boolean isKeyedEntry() {
 244             return true;
 245         }
 246     }
 247
 248     private static final class UnkeyedListItemNormalization
 249             extends DataContainerNormalizationOperation<NodeIdentifier> {
 250         UnkeyedListItemNormalization(final ListSchemaNode schema) {
 251             super(new NodeIdentifier(schema.getQName()), schema,schema);
 252         }
 253
 254         @Override
 255         @SuppressFBWarnings("BC_UNCONFIRMED_CAST")
 256         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 257             return Builders.unkeyedListEntryBuilder().withNodeIdentifier((NodeIdentifier) currentArg).build();
 258         }
 259     }
 260
 261     private static final class ContainerNormalization extends DataContainerNormalizationOperation<NodeIdentifier> {
 262         ContainerNormalization(final ContainerSchemaNode schema) {
 263             super(new NodeIdentifier(schema.getQName()),schema, schema);
 264         }
 265
 266         @Override
 267         @SuppressFBWarnings("BC_UNCONFIRMED_CAST")
 268         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 269             return Builders.containerBuilder().withNodeIdentifier((NodeIdentifier) currentArg).build();
 270         }
 271     }
 272
 273     private abstract static class MixinNormalizationOp<T extends PathArgument>
 274             extends CompositeNodeNormalizationOperation<T> {
 275
 276         MixinNormalizationOp(final T identifier, final DataSchemaNode schema) {
 277             super(identifier,schema);
 278         }
 279
 280         @Override
 281         public final boolean isMixin() {
 282             return true;
 283         }
 284     }
 285
 286     private static final class OrderedLeafListMixinNormalization extends UnorderedLeafListMixinNormalization {
 287         OrderedLeafListMixinNormalization(final LeafListSchemaNode potential) {
 288             super(potential);
 289         }
 290
 291         @Override
 292         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 293             return Builders.orderedLeafSetBuilder().withNodeIdentifier(getIdentifier()).build();
 294         }
 295     }
 296
 297     private static class UnorderedLeafListMixinNormalization extends MixinNormalizationOp<NodeIdentifier> {
 298
 299         private final DataNormalizationOperation<?> innerOp;
 300
 301         UnorderedLeafListMixinNormalization(final LeafListSchemaNode potential) {
 302             super(new NodeIdentifier(potential.getQName()),potential);
 303             innerOp = new LeafListEntryNormalization(potential);
 304         }
 305
 306         @Override
 307         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 308             return Builders.leafSetBuilder().withNodeIdentifier(getIdentifier()).build();
 309         }
 310
 311         @Override
 312         public DataNormalizationOperation<?> getChild(final PathArgument child) {
 313             if (child instanceof NodeWithValue) {
 314                 return innerOp;
 315             }
 316             return null;
 317         }
 318
 319         @Override
 320         public DataNormalizationOperation<?> getChild(final QName child) {
 321             if (getIdentifier().getNodeType().equals(child)) {
 322                 return innerOp;
 323             }
 324             return null;
 325         }
 326     }
 327
 328     private static final class AugmentationNormalization
 329             extends DataContainerNormalizationOperation<AugmentationIdentifier> {
 330
 331         AugmentationNormalization(final AugmentationSchemaNode augmentation, final DataNodeContainer schema) {
 332             super(augmentationIdentifierFrom(augmentation), augmentationProxy(augmentation,schema),null);
 333         }
 334
 335         private static DataNodeContainer augmentationProxy(final AugmentationSchemaNode augmentation,
 336                 final DataNodeContainer schema) {
 337             final Set<DataSchemaNode> children = new HashSet<>();
 338             for (final DataSchemaNode augNode : augmentation.getChildNodes()) {
 339                 children.add(schema.getDataChildByName(augNode.getQName()));
 340             }
 341             return new EffectiveAugmentationSchema(augmentation, children);
 342         }
 343
 344         @Override
 345         public boolean isMixin() {
 346             return true;
 347         }
 348
 349         @Override
 350         protected DataNormalizationOperation<?> fromLocalSchemaAndQName(final DataNodeContainer schema,
 351                 final QName child) {
 352             final DataSchemaNode result = findChildSchemaNode(schema, child);
 353             if (result == null) {
 354                 return null;
 355             }
 356
 357             // We try to look up if this node was added by augmentation
 358             if (schema instanceof DataSchemaNode && result.isAugmenting()) {
 359                 return fromAugmentation(schema, (AugmentationTarget) schema, result);
 360             }
 361             return fromDataSchemaNode(result);
 362         }
 363
 364         @Override
 365         protected Set<QName> getQNameIdentifiers() {
 366             return getIdentifier().getPossibleChildNames();
 367         }
 368
 369         @Override
 370         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 371             return Builders.augmentationBuilder().withNodeIdentifier(getIdentifier()).build();
 372         }
 373     }
 374
 375     private static class UnorderedMapMixinNormalization extends MixinNormalizationOp<NodeIdentifier> {
 376         private final ListItemNormalization innerNode;
 377
 378         UnorderedMapMixinNormalization(final ListSchemaNode list) {
 379             super(new NodeIdentifier(list.getQName()),list);
 380             this.innerNode = new ListItemNormalization(NodeIdentifierWithPredicates.of(list.getQName(),
 381                     Collections.<QName, Object>emptyMap()), list);
 382         }
 383
 384         @Override
 385         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 386             return Builders.mapBuilder().withNodeIdentifier(getIdentifier()).build();
 387         }
 388
 389         @Override
 390         public DataNormalizationOperation<?> getChild(final PathArgument child) {
 391             if (child.getNodeType().equals(getIdentifier().getNodeType())) {
 392                 return innerNode;
 393             }
 394             return null;
 395         }
 396
 397         @Override
 398         public DataNormalizationOperation<?> getChild(final QName child) {
 399             if (getIdentifier().getNodeType().equals(child)) {
 400                 return innerNode;
 401             }
 402             return null;
 403         }
 404     }
 405
 406     private static class UnkeyedListMixinNormalization extends MixinNormalizationOp<NodeIdentifier> {
 407         private final UnkeyedListItemNormalization innerNode;
 408
 409         UnkeyedListMixinNormalization(final ListSchemaNode list) {
 410             super(new NodeIdentifier(list.getQName()),list);
 411             this.innerNode = new UnkeyedListItemNormalization(list);
 412         }
 413
 414         @Override
 415         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 416             return Builders.unkeyedListBuilder().withNodeIdentifier(getIdentifier()).build();
 417         }
 418
 419         @Override
 420         public DataNormalizationOperation<?> getChild(final PathArgument child) {
 421             if (child.getNodeType().equals(getIdentifier().getNodeType())) {
 422                 return innerNode;
 423             }
 424             return null;
 425         }
 426
 427         @Override
 428         public DataNormalizationOperation<?> getChild(final QName child) {
 429             if (getIdentifier().getNodeType().equals(child)) {
 430                 return innerNode;
 431             }
 432             return null;
 433         }
 434     }
 435
 436     private static final class OrderedMapMixinNormalization extends UnorderedMapMixinNormalization {
 437         OrderedMapMixinNormalization(final ListSchemaNode list) {
 438             super(list);
 439         }
 440
 441         @Override
 442         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 443             return Builders.orderedMapBuilder().withNodeIdentifier(getIdentifier()).build();
 444         }
 445     }
 446
 447     private static class ChoiceNodeNormalization extends MixinNormalizationOp<NodeIdentifier> {
 448         private final ImmutableMap<QName, DataNormalizationOperation<?>> byQName;
 449         private final ImmutableMap<PathArgument, DataNormalizationOperation<?>> byArg;
 450
 451         ChoiceNodeNormalization(final ChoiceSchemaNode schema) {
 452             super(new NodeIdentifier(schema.getQName()),schema);
 453             final ImmutableMap.Builder<QName, DataNormalizationOperation<?>> byQNameBuilder = ImmutableMap.builder();
 454             final ImmutableMap.Builder<PathArgument, DataNormalizationOperation<?>> byArgBuilder =
 455                     ImmutableMap.builder();
 456
 457             for (final CaseSchemaNode caze : schema.getCases().values()) {
 458                 for (final DataSchemaNode cazeChild : caze.getChildNodes()) {
 459                     final DataNormalizationOperation<?> childOp = fromDataSchemaNode(cazeChild);
 460                     byArgBuilder.put(childOp.getIdentifier(), childOp);
 461                     for (final QName qname : childOp.getQNameIdentifiers()) {
 462                         byQNameBuilder.put(qname, childOp);
 463                     }
 464                 }
 465             }
 466             byQName = byQNameBuilder.build();
 467             byArg = byArgBuilder.build();
 468         }
 469
 470         @Override
 471         public DataNormalizationOperation<?> getChild(final PathArgument child) {
 472             return byArg.get(child);
 473         }
 474
 475         @Override
 476         public DataNormalizationOperation<?> getChild(final QName child) {
 477             return byQName.get(child);
 478         }
 479
 480         @Override
 481         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 482             return Builders.choiceBuilder().withNodeIdentifier(getIdentifier()).build();
 483         }
 484     }
 485
 486     private static class AnyXmlNormalization extends DataNormalizationOperation<NodeIdentifier> {
 487         AnyXmlNormalization(final AnyXmlSchemaNode schema) {
 488             super(new NodeIdentifier(schema.getQName()), schema);
 489         }
 490
 491         @Override
 492         public DataNormalizationOperation<?> getChild(final PathArgument child) {
 493             return null;
 494         }
 495
 496         @Override
 497         public DataNormalizationOperation<?> getChild(final QName child) {
 498             return null;
 499         }
 500
 501         @Override
 502         public boolean isLeaf() {
 503             return false;
 504         }
 505
 506         @Override
 507         public NormalizedNode<?, ?> createDefault(final PathArgument currentArg) {
 508             return null;
 509         }
 510     }
 511
 512     private static @Nullable DataSchemaNode findChildSchemaNode(final DataNodeContainer parent, final QName child) {
 513         final DataSchemaNode potential = parent.getDataChildByName(child);
 514         return potential != null ? potential : findChoice(parent, child);
 515     }
 516
 517     private static @Nullable ChoiceSchemaNode findChoice(final DataNodeContainer parent, final QName child) {
 518         for (final ChoiceSchemaNode choice : Iterables.filter(parent.getChildNodes(), ChoiceSchemaNode.class)) {
 519             for (final CaseSchemaNode caze : choice.getCases().values()) {
 520                 if (findChildSchemaNode(caze, child) != null) {
 521                     return choice;
 522                 }
 523             }
 524         }
 525         return null;
 526     }
 527
 528     public static AugmentationIdentifier augmentationIdentifierFrom(final AugmentationSchemaNode augmentation) {
 529         final ImmutableSet.Builder<QName> potentialChildren = ImmutableSet.builder();
 530         for (final DataSchemaNode child : augmentation.getChildNodes()) {
 531             potentialChildren.add(child.getQName());
 532         }
 533         return new AugmentationIdentifier(potentialChildren.build());
 534     }
 535
 536     /**
 537      * Returns a DataNormalizationOperation for provided child node.
 538      *
 539      * <p>
 540      * If supplied child is added by Augmentation this operation returns
 541      * a DataNormalizationOperation for augmentation,
 542      * otherwise returns a DataNormalizationOperation for child as
 543      * call for {@link #fromDataSchemaNode(DataSchemaNode)}.
 544      */
 545     @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
 546             justification = "https://github.com/spotbugs/spotbugs/issues/811")
 547     private static DataNormalizationOperation<?> fromAugmentation(final DataNodeContainer parent,
 548             final AugmentationTarget parentAug, final DataSchemaNode child) {
 549         AugmentationSchemaNode augmentation = null;
 550         for (final AugmentationSchemaNode aug : parentAug.getAvailableAugmentations()) {
 551             final DataSchemaNode potential = aug.getDataChildByName(child.getQName());
 552             if (potential != null) {
 553                 augmentation = aug;
 554                 break;
 555             }
 556
 557         }
 558         if (augmentation != null) {
 559             return new AugmentationNormalization(augmentation, parent);
 560         } else {
 561             return fromDataSchemaNode(child);
 562         }
 563     }
 564
 565     public static DataNormalizationOperation<?> fromDataSchemaNode(final DataSchemaNode potential) {
 566         if (potential instanceof ContainerSchemaNode) {
 567             return new ContainerNormalization((ContainerSchemaNode) potential);
 568         } else if (potential instanceof ListSchemaNode) {
 569
 570             return fromListSchemaNode((ListSchemaNode) potential);
 571         } else if (potential instanceof LeafSchemaNode) {
 572             return new LeafNormalization((LeafSchemaNode) potential);
 573         } else if (potential instanceof ChoiceSchemaNode) {
 574             return new ChoiceNodeNormalization((ChoiceSchemaNode) potential);
 575         } else if (potential instanceof LeafListSchemaNode) {
 576             return fromLeafListSchemaNode((LeafListSchemaNode) potential);
 577         } else if (potential instanceof AnyXmlSchemaNode) {
 578             return new AnyXmlNormalization((AnyXmlSchemaNode) potential);
 579         }
 580         return null;
 581     }
 582
 583     private static DataNormalizationOperation<?> fromListSchemaNode(final ListSchemaNode potential) {
 584         final List<QName> keyDefinition = potential.getKeyDefinition();
 585         if (keyDefinition == null || keyDefinition.isEmpty()) {
 586             return new UnkeyedListMixinNormalization(potential);
 587         }
 588         if (potential.isUserOrdered()) {
 589             return new OrderedMapMixinNormalization(potential);
 590         }
 591         return new UnorderedMapMixinNormalization(potential);
 592     }
 593
 594     private static DataNormalizationOperation<?> fromLeafListSchemaNode(final LeafListSchemaNode potential) {
 595         if (potential.isUserOrdered()) {
 596             return new OrderedLeafListMixinNormalization(potential);
 597         }
 598         return new UnorderedLeafListMixinNormalization(potential);
 599     }
 600
 601
 602     public static DataNormalizationOperation<?> from(final SchemaContext ctx) {
 603         return new ContainerNormalization(ctx);
 604     }
 605
 606     public abstract NormalizedNode<?, ?> createDefault(PathArgument currentArg);
 607 }