parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/AbstractDeviateStatementSupport.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.yangtools.yang.parser.rfc7950.stmt.deviate;
   9
  10 import com.google.common.collect.ImmutableList;
  11 import com.google.common.collect.ImmutableMap;
  12 import com.google.common.collect.ImmutableSet;
  13 import com.google.common.collect.Iterables;
  14 import com.google.common.collect.Maps;
  15 import com.google.common.collect.SetMultimap;
  16 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  17 import java.util.Arrays;
  18 import java.util.Collection;
  19 import java.util.List;
  20 import java.util.Objects;
  21 import java.util.Set;
  22 import org.opendaylight.yangtools.yang.common.QNameModule;
  23 import org.opendaylight.yangtools.yang.common.YangVersion;
  24 import org.opendaylight.yangtools.yang.model.api.DeviateKind;
  25 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  26 import org.opendaylight.yangtools.yang.model.api.meta.DeclarationReference;
  27 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  28 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  29 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
  30 import org.opendaylight.yangtools.yang.model.api.stmt.DeviateEffectiveStatement;
  31 import org.opendaylight.yangtools.yang.model.api.stmt.DeviateStatement;
  32 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  33 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatementDecorators;
  34 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
  35 import org.opendaylight.yangtools.yang.model.ri.stmt.EffectiveStatements;
  36 import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
  37 import org.opendaylight.yangtools.yang.parser.rfc7950.reactor.YangValidationBundles;
  38 import org.opendaylight.yangtools.yang.parser.spi.SchemaTreeNamespace;
  39 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  40 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
  41 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  42 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  43 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  44 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  45 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
  46 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  47 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  48 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  49 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  50 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
  51 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  52 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
  53 import org.opendaylight.yangtools.yang.parser.spi.source.ModulesDeviatedByModules;
  54 import org.opendaylight.yangtools.yang.parser.spi.source.ModulesDeviatedByModules.SupportedModules;
  55 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  56 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
  57 import org.slf4j.Logger;
  58 import org.slf4j.LoggerFactory;
  59
  60 abstract class AbstractDeviateStatementSupport
  61         extends AbstractStatementSupport<DeviateKind, DeviateStatement, DeviateEffectiveStatement> {
  62     private static final Logger LOG = LoggerFactory.getLogger(AbstractDeviateStatementSupport.class);
  63
  64     private static final SubstatementValidator DEVIATE_NOT_SUPPORTED_SUBSTATEMENT_VALIDATOR =
  65             SubstatementValidator.builder(YangStmtMapping.DEVIATE).build();
  66
  67     private static final SubstatementValidator DEVIATE_ADD_SUBSTATEMENT_VALIDATOR =
  68             SubstatementValidator.builder(YangStmtMapping.DEVIATE)
  69                 .addOptional(YangStmtMapping.CONFIG)
  70                 .addOptional(YangStmtMapping.DEFAULT)
  71                 .addOptional(YangStmtMapping.MANDATORY)
  72                 .addOptional(YangStmtMapping.MAX_ELEMENTS)
  73                 .addOptional(YangStmtMapping.MIN_ELEMENTS)
  74                 .addAny(YangStmtMapping.MUST)
  75                 .addAny(YangStmtMapping.UNIQUE)
  76                 .addOptional(YangStmtMapping.UNITS)
  77                 .build();
  78
  79     private static final SubstatementValidator DEVIATE_REPLACE_SUBSTATEMENT_VALIDATOR =
  80             SubstatementValidator.builder(YangStmtMapping.DEVIATE)
  81                 .addOptional(YangStmtMapping.CONFIG)
  82                 .addOptional(YangStmtMapping.DEFAULT)
  83                 .addOptional(YangStmtMapping.MANDATORY)
  84                 .addOptional(YangStmtMapping.MAX_ELEMENTS)
  85                 .addOptional(YangStmtMapping.MIN_ELEMENTS)
  86                 .addOptional(YangStmtMapping.TYPE)
  87                 .addOptional(YangStmtMapping.UNITS)
  88                 .build();
  89
  90     private static final SubstatementValidator DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR =
  91             SubstatementValidator.builder(YangStmtMapping.DEVIATE)
  92                 .addOptional(YangStmtMapping.DEFAULT)
  93                 .addAny(YangStmtMapping.MUST)
  94                 .addAny(YangStmtMapping.UNIQUE)
  95                 .addOptional(YangStmtMapping.UNITS)
  96                 .build();
  97
  98     private static final ImmutableMap<String, DeviateKind> KEYWORD_TO_DEVIATE_MAP =
  99             Maps.uniqueIndex(Arrays.asList(DeviateKind.values()), DeviateKind::getKeyword);
 100
 101     private static final ImmutableSet<YangStmtMapping> SINGLETON_STATEMENTS = ImmutableSet.of(
 102             YangStmtMapping.UNITS, YangStmtMapping.CONFIG, YangStmtMapping.MANDATORY,
 103             YangStmtMapping.MIN_ELEMENTS, YangStmtMapping.MAX_ELEMENTS);
 104
 105     private static final ImmutableSet<YangStmtMapping> IMPLICIT_STATEMENTS = ImmutableSet.of(YangStmtMapping.CONFIG,
 106             YangStmtMapping.MANDATORY, YangStmtMapping.MAX_ELEMENTS, YangStmtMapping.MIN_ELEMENTS);
 107
 108     AbstractDeviateStatementSupport(final YangParserConfiguration config) {
 109         // Note: we are performing our own validation based on deviate kind.
 110         // TODO: perhaps we should do argumentSpecificSupport?
 111         super(YangStmtMapping.DEVIATE, StatementPolicy.contextIndependent(), config, null);
 112     }
 113
 114     @Override
 115     public final DeviateKind parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
 116         return SourceException.throwIfNull(KEYWORD_TO_DEVIATE_MAP.get(value), ctx,
 117             "String '%s' is not valid deviate argument", value);
 118     }
 119
 120     @Override
 121     public final void onFullDefinitionDeclared(
 122             final Mutable<DeviateKind, DeviateStatement, DeviateEffectiveStatement> deviateStmtCtx) {
 123         final DeviateKind deviateKind = deviateStmtCtx.argument();
 124         getSubstatementValidatorForDeviate(deviateKind).validate(deviateStmtCtx);
 125
 126         final SchemaNodeIdentifier deviationTarget =
 127                 (SchemaNodeIdentifier) deviateStmtCtx.coerceParentContext().argument();
 128
 129         if (!isDeviationSupported(deviateStmtCtx, deviationTarget)) {
 130             return;
 131         }
 132
 133         final ModelActionBuilder deviateAction = deviateStmtCtx.newInferenceAction(
 134                 ModelProcessingPhase.EFFECTIVE_MODEL);
 135
 136         final Prerequisite<StmtContext<DeviateKind, DeviateStatement,
 137             DeviateEffectiveStatement>> sourceCtxPrerequisite =
 138                 deviateAction.requiresCtx(deviateStmtCtx, ModelProcessingPhase.EFFECTIVE_MODEL);
 139
 140         final Prerequisite<Mutable<?, ?, EffectiveStatement<?, ?>>> targetCtxPrerequisite =
 141                 deviateAction.mutatesEffectiveCtxPath(deviateStmtCtx.getRoot(),
 142                     SchemaTreeNamespace.class, deviationTarget.getNodeIdentifiers());
 143
 144         deviateAction.apply(new InferenceAction() {
 145             @Override
 146             public void apply(final InferenceContext ctx) {
 147                 if (!deviateStmtCtx.isSupportedToBuildEffective()) {
 148                     // We are not building effective model, hence we should not be performing any effects
 149                     return;
 150                 }
 151
 152                 // FIXME once BUG-7760 gets fixed, there will be no need for these dirty casts
 153                 final StatementContextBase<?, ?, ?> sourceNodeStmtCtx =
 154                         (StatementContextBase<?, ?, ?>) sourceCtxPrerequisite.resolve(ctx);
 155                 final StatementContextBase<?, ?, ?> targetNodeStmtCtx =
 156                         (StatementContextBase<?, ?, ?>) targetCtxPrerequisite.resolve(ctx);
 157
 158                 switch (deviateKind) {
 159                     case NOT_SUPPORTED:
 160                         targetNodeStmtCtx.setIsSupportedToBuildEffective(false);
 161                         break;
 162                     case ADD:
 163                         performDeviateAdd(sourceNodeStmtCtx, targetNodeStmtCtx);
 164                         break;
 165                     case REPLACE:
 166                         performDeviateReplace(sourceNodeStmtCtx, targetNodeStmtCtx);
 167                         break;
 168                     case DELETE:
 169                         performDeviateDelete(sourceNodeStmtCtx, targetNodeStmtCtx);
 170                         break;
 171                     default:
 172                         throw new IllegalStateException("Unsupported deviate " + deviateKind);
 173                 }
 174             }
 175
 176             @Override
 177             public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
 178                 throw new InferenceException(deviateStmtCtx.coerceParentContext(), "Deviation target '%s' not found.",
 179                     deviationTarget);
 180             }
 181
 182             @Override
 183             public void prerequisiteUnavailable(final Prerequisite<?> unavail) {
 184                 if (targetCtxPrerequisite.equals(unavail)) {
 185                     deviateStmtCtx.setIsSupportedToBuildEffective(false);
 186                 } else {
 187                     prerequisiteFailed(List.of(unavail));
 188                 }
 189             }
 190         });
 191     }
 192
 193     @Override
 194     public String internArgument(final String rawArgument) {
 195         if ("add".equals(rawArgument)) {
 196             return "add";
 197         } else if ("delete".equals(rawArgument)) {
 198             return "delete";
 199         } else if ("replace".equals(rawArgument)) {
 200             return "replace";
 201         } else if ("not-supported".equals(rawArgument)) {
 202             return "not-supported";
 203         } else {
 204             return rawArgument;
 205         }
 206     }
 207
 208     @Override
 209     protected final DeviateStatement createDeclared(final StmtContext<DeviateKind, DeviateStatement, ?> ctx,
 210             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
 211         return DeclaredStatements.createDeviate(ctx.getArgument(), substatements);
 212     }
 213
 214     @Override
 215     protected final DeviateStatement attachDeclarationReference(final DeviateStatement stmt,
 216             final DeclarationReference reference) {
 217         return DeclaredStatementDecorators.decorateDeviate(stmt, reference);
 218     }
 219
 220     @Override
 221     protected final DeviateEffectiveStatement createEffective(final Current<DeviateKind, DeviateStatement> stmt,
 222             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 223         return EffectiveStatements.createDeviate(stmt.declared(), substatements);
 224     }
 225
 226     protected SubstatementValidator getSubstatementValidatorForDeviate(final DeviateKind deviateKind) {
 227         switch (deviateKind) {
 228             case NOT_SUPPORTED:
 229                 return DEVIATE_NOT_SUPPORTED_SUBSTATEMENT_VALIDATOR;
 230             case ADD:
 231                 return DEVIATE_ADD_SUBSTATEMENT_VALIDATOR;
 232             case REPLACE:
 233                 return DEVIATE_REPLACE_SUBSTATEMENT_VALIDATOR;
 234             case DELETE:
 235                 return DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR;
 236             default:
 237                 throw new IllegalStateException(String.format(
 238                         "Substatement validator for deviate %s has not been defined.", deviateKind));
 239         }
 240     }
 241
 242     private static boolean isDeviationSupported(
 243             final Mutable<DeviateKind, DeviateStatement, DeviateEffectiveStatement> deviateStmtCtx,
 244             final SchemaNodeIdentifier deviationTarget) {
 245         final SetMultimap<QNameModule, QNameModule> modulesDeviatedByModules = deviateStmtCtx.getFromNamespace(
 246                 ModulesDeviatedByModules.class, SupportedModules.SUPPORTED_MODULES);
 247         if (modulesDeviatedByModules == null) {
 248             return true;
 249         }
 250
 251         final QNameModule currentModule = deviateStmtCtx.getFromNamespace(ModuleCtxToModuleQName.class,
 252                 deviateStmtCtx.getRoot());
 253         final QNameModule targetModule = Iterables.getLast(deviationTarget.getNodeIdentifiers()).getModule();
 254
 255         final Set<QNameModule> deviationModulesSupportedByTargetModule = modulesDeviatedByModules.get(targetModule);
 256         if (deviationModulesSupportedByTargetModule != null) {
 257             return deviationModulesSupportedByTargetModule.contains(currentModule);
 258         }
 259
 260         return false;
 261     }
 262
 263     @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
 264             justification = "https://github.com/spotbugs/spotbugs/issues/811")
 265     private static void performDeviateAdd(final StatementContextBase<?, ?, ?> deviateStmtCtx,
 266             final StatementContextBase<?, ?, ?> targetCtx) {
 267         for (Mutable<?, ?, ?> originalStmtCtx : deviateStmtCtx.mutableDeclaredSubstatements()) {
 268             validateDeviationTarget(originalStmtCtx, targetCtx);
 269             addStatement(originalStmtCtx, targetCtx);
 270         }
 271     }
 272
 273     private static void addStatement(final Mutable<?, ?, ?> stmtCtxToBeAdded,
 274             final StatementContextBase<?, ?, ?> targetCtx) {
 275         if (!StmtContextUtils.isUnknownStatement(stmtCtxToBeAdded)) {
 276             final StatementDefinition stmtToBeAdded = stmtCtxToBeAdded.publicDefinition();
 277             if (SINGLETON_STATEMENTS.contains(stmtToBeAdded) || YangStmtMapping.DEFAULT.equals(stmtToBeAdded)
 278                     && YangStmtMapping.LEAF.equals(targetCtx.publicDefinition())) {
 279                 for (final StmtContext<?, ?, ?> targetCtxSubstatement : targetCtx.allSubstatements()) {
 280                     InferenceException.throwIf(stmtToBeAdded.equals(targetCtxSubstatement.publicDefinition()),
 281                         stmtCtxToBeAdded,
 282                         "Deviation cannot add substatement %s to target node %s because it is already defined "
 283                         + "in target and can appear only once.",
 284                         stmtToBeAdded.getStatementName(), targetCtx.argument());
 285                 }
 286             }
 287         }
 288
 289         copyStatement(stmtCtxToBeAdded, targetCtx);
 290     }
 291
 292     @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
 293             justification = "https://github.com/spotbugs/spotbugs/issues/811")
 294     private static void performDeviateReplace(final StatementContextBase<?, ?, ?> deviateStmtCtx,
 295             final StatementContextBase<?, ?, ?> targetCtx) {
 296         for (Mutable<?, ?, ?> originalStmtCtx : deviateStmtCtx.mutableDeclaredSubstatements()) {
 297             validateDeviationTarget(originalStmtCtx, targetCtx);
 298             replaceStatement(originalStmtCtx, targetCtx);
 299         }
 300     }
 301
 302     private static void replaceStatement(final Mutable<?, ?, ?> stmtCtxToBeReplaced,
 303             final StatementContextBase<?, ?, ?> targetCtx) {
 304         final StatementDefinition stmtToBeReplaced = stmtCtxToBeReplaced.publicDefinition();
 305
 306         if (YangStmtMapping.DEFAULT.equals(stmtToBeReplaced)
 307                 && YangStmtMapping.LEAF_LIST.equals(targetCtx.publicDefinition())) {
 308             LOG.error("Deviation cannot replace substatement {} in target leaf-list {} because a leaf-list can "
 309                     + "have multiple default statements. At line: {}", stmtToBeReplaced.getStatementName(),
 310                     targetCtx.argument(), stmtCtxToBeReplaced.sourceReference());
 311             return;
 312         }
 313
 314         for (final StmtContext<?, ?, ?> targetCtxSubstatement : targetCtx.effectiveSubstatements()) {
 315             if (stmtToBeReplaced.equals(targetCtxSubstatement.publicDefinition())) {
 316                 targetCtx.removeStatementFromEffectiveSubstatements(stmtToBeReplaced);
 317                 copyStatement(stmtCtxToBeReplaced, targetCtx);
 318                 return;
 319             }
 320         }
 321
 322         for (final Mutable<?, ?, ?> targetCtxSubstatement : targetCtx.mutableDeclaredSubstatements()) {
 323             if (stmtToBeReplaced.equals(targetCtxSubstatement.publicDefinition())) {
 324                 targetCtxSubstatement.setIsSupportedToBuildEffective(false);
 325                 copyStatement(stmtCtxToBeReplaced, targetCtx);
 326                 return;
 327             }
 328         }
 329
 330         // This is a special case when deviate replace of a config/mandatory/max/min-elements substatement targets
 331         // a node which does not contain an explicitly declared config/mandatory/max/min-elements.
 332         // However, according to RFC6020/RFC7950, these properties are always implicitly present.
 333         if (IMPLICIT_STATEMENTS.contains(stmtToBeReplaced)) {
 334             addStatement(stmtCtxToBeReplaced, targetCtx);
 335             return;
 336         }
 337
 338         throw new InferenceException(stmtCtxToBeReplaced,
 339             "Deviation cannot replace substatement %s in target node %s because it does not exist in target node.",
 340             stmtToBeReplaced.getStatementName(), targetCtx.argument());
 341     }
 342
 343     @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
 344             justification = "https://github.com/spotbugs/spotbugs/issues/811")
 345     private static void performDeviateDelete(final StatementContextBase<?, ?, ?> deviateStmtCtx,
 346             final StatementContextBase<?, ?, ?> targetCtx) {
 347         for (Mutable<?, ?, ?> originalStmtCtx : deviateStmtCtx.mutableDeclaredSubstatements()) {
 348             validateDeviationTarget(originalStmtCtx, targetCtx);
 349             deleteStatement(originalStmtCtx, targetCtx);
 350         }
 351     }
 352
 353     private static void deleteStatement(final StmtContext<?, ?, ?> stmtCtxToBeDeleted,
 354             final StatementContextBase<?, ?, ?> targetCtx) {
 355         final StatementDefinition stmtToBeDeleted = stmtCtxToBeDeleted.publicDefinition();
 356         final String stmtArgument = stmtCtxToBeDeleted.rawArgument();
 357
 358         for (final Mutable<?, ?, ?> targetCtxSubstatement : targetCtx.mutableEffectiveSubstatements()) {
 359             if (statementsAreEqual(stmtToBeDeleted, stmtArgument, targetCtxSubstatement.publicDefinition(),
 360                     targetCtxSubstatement.rawArgument())) {
 361                 targetCtx.removeStatementFromEffectiveSubstatements(stmtToBeDeleted, stmtArgument);
 362                 return;
 363             }
 364         }
 365
 366         for (final Mutable<?, ?, ?> targetCtxSubstatement : targetCtx.mutableDeclaredSubstatements()) {
 367             if (statementsAreEqual(stmtToBeDeleted, stmtArgument, targetCtxSubstatement.publicDefinition(),
 368                     targetCtxSubstatement.rawArgument())) {
 369                 targetCtxSubstatement.setIsSupportedToBuildEffective(false);
 370                 return;
 371             }
 372         }
 373
 374         LOG.error("Deviation cannot delete substatement {} with argument '{}' in target node {} because it does "
 375                 + "not exist in the target node. At line: {}", stmtToBeDeleted.getStatementName(), stmtArgument,
 376                 targetCtx.argument(), stmtCtxToBeDeleted.sourceReference());
 377     }
 378
 379     private static void copyStatement(final Mutable<?, ?, ?> stmtCtxToBeCopied,
 380             final StatementContextBase<?, ?, ?> targetCtx) {
 381         // we need to make a copy of the statement context only if it is an unknown statement, otherwise
 382         // we can reuse the original statement context
 383         if (!StmtContextUtils.isUnknownStatement(stmtCtxToBeCopied)) {
 384             targetCtx.addEffectiveSubstatement(stmtCtxToBeCopied.replicaAsChildOf(targetCtx));
 385         } else {
 386             targetCtx.addEffectiveSubstatement(targetCtx.childCopyOf(stmtCtxToBeCopied, CopyType.ORIGINAL));
 387         }
 388     }
 389
 390     private static boolean statementsAreEqual(final StatementDefinition firstStmtDef, final String firstStmtArg,
 391             final StatementDefinition secondStmtDef, final String secondStmtArg) {
 392         return firstStmtDef.equals(secondStmtDef) && Objects.equals(firstStmtArg, secondStmtArg);
 393     }
 394
 395     private static void validateDeviationTarget(final StmtContext<?, ?, ?> deviateSubStmtCtx,
 396             final StmtContext<?, ?, ?> targetCtx) {
 397         InferenceException.throwIf(!isSupportedDeviationTarget(deviateSubStmtCtx, targetCtx,
 398             targetCtx.yangVersion()), deviateSubStmtCtx,
 399             "%s is not a valid deviation target for substatement %s.", targetCtx.argument(),
 400             deviateSubStmtCtx.publicDefinition().getStatementName());
 401     }
 402
 403     private static boolean isSupportedDeviationTarget(final StmtContext<?, ?, ?> deviateSubstatementCtx,
 404             final StmtContext<?, ?, ?> deviateTargetCtx, final YangVersion yangVersion) {
 405         Set<StatementDefinition> supportedDeviationTargets =
 406                 YangValidationBundles.SUPPORTED_DEVIATION_TARGETS.get(yangVersion,
 407                         deviateSubstatementCtx.publicDefinition());
 408
 409         if (supportedDeviationTargets == null) {
 410             supportedDeviationTargets = YangValidationBundles.SUPPORTED_DEVIATION_TARGETS.get(YangVersion.VERSION_1,
 411                     deviateSubstatementCtx.publicDefinition());
 412         }
 413
 414         // if supportedDeviationTargets is null, it means that the deviate substatement is an unknown statement
 415         return supportedDeviationTargets == null || supportedDeviationTargets.contains(
 416                 deviateTargetCtx.publicDefinition());
 417     }
 418 }