+++ /dev/null
-/*
- * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.yangtools.yang.parser.spi.meta;
-
-import static com.google.common.base.Preconditions.checkArgument;
-import static java.util.Objects.requireNonNull;
-
-import com.google.common.base.Strings;
-import com.google.common.base.VerifyException;
-import com.google.common.collect.ImmutableList;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Optional;
-import java.util.Set;
-import java.util.function.Predicate;
-import org.eclipse.jdt.annotation.NonNull;
-import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.common.Revision;
-import org.opendaylight.yangtools.yang.common.YangVersion;
-import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
-import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
-import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
-import org.opendaylight.yangtools.yang.model.api.stmt.BelongsToStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.KeyEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.KeyStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.LeafStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.MandatoryStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.MinElementsStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.ModuleStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.PresenceEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.RevisionStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.SubmoduleStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.UnknownStatement;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
-import org.opendaylight.yangtools.yang.parser.spi.source.BelongsToPrefixToModuleName;
-import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToModuleCtx;
-import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
-import org.opendaylight.yangtools.yang.parser.spi.source.ModuleNameToModuleQName;
-import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
-
-public final class StmtContextUtils {
- private StmtContextUtils() {
- // Hidden on purpose
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> A firstAttributeOf(
- final Iterable<? extends StmtContext<?, ?, ?>> contexts, final Class<D> declaredType) {
- for (final StmtContext<?, ?, ?> ctx : contexts) {
- if (ctx.producesDeclared(declaredType)) {
- return (A) ctx.argument();
- }
- }
- return null;
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> A firstAttributeOf(final StmtContext<?, ?, ?> ctx,
- final Class<D> declaredType) {
- return ctx.producesDeclared(declaredType) ? (A) ctx.argument() : null;
- }
-
- public static <A, D extends DeclaredStatement<A>> A firstSubstatementAttributeOf(
- final StmtContext<?, ?, ?> ctx, final Class<D> declaredType) {
- return firstAttributeOf(ctx.allSubstatements(), declaredType);
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> StmtContext<A, ?, ?> findFirstDeclaredSubstatement(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> declaredType) {
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.declaredSubstatements()) {
- if (subStmtContext.producesDeclared(declaredType)) {
- return (StmtContext<A, ?, ?>) subStmtContext;
- }
- }
- return null;
- }
-
- @SafeVarargs
- @SuppressWarnings({ "rawtypes", "unchecked" })
- public static StmtContext<?, ?, ?> findFirstDeclaredSubstatement(final StmtContext<?, ?, ?> stmtContext,
- int startIndex, final Class<? extends DeclaredStatement<?>>... types) {
- if (startIndex >= types.length) {
- return null;
- }
-
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.declaredSubstatements()) {
- if (subStmtContext.producesDeclared((Class) types[startIndex])) {
- return startIndex + 1 == types.length ? subStmtContext : findFirstDeclaredSubstatement(subStmtContext,
- ++startIndex, types);
- }
- }
- return null;
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> Collection<StmtContext<A, D, ?>> findAllDeclaredSubstatements(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> declaredType) {
- final ImmutableList.Builder<StmtContext<A, D, ?>> listBuilder = ImmutableList.builder();
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.declaredSubstatements()) {
- if (subStmtContext.producesDeclared(declaredType)) {
- listBuilder.add((StmtContext<A, D, ?>) subStmtContext);
- }
- }
- return listBuilder.build();
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> Collection<StmtContext<A, D, ?>> findAllEffectiveSubstatements(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> type) {
- final ImmutableList.Builder<StmtContext<A, D, ?>> listBuilder = ImmutableList.builder();
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.effectiveSubstatements()) {
- if (subStmtContext.producesDeclared(type)) {
- listBuilder.add((StmtContext<A, D, ?>) subStmtContext);
- }
- }
- return listBuilder.build();
- }
-
- public static <A, D extends DeclaredStatement<A>> Collection<StmtContext<A, D, ?>> findAllSubstatements(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> type) {
- final ImmutableList.Builder<StmtContext<A, D, ?>> listBuilder = ImmutableList.builder();
- listBuilder.addAll(findAllDeclaredSubstatements(stmtContext, type));
- listBuilder.addAll(findAllEffectiveSubstatements(stmtContext, type));
- return listBuilder.build();
- }
-
- @SuppressWarnings("unchecked")
- public static <A, D extends DeclaredStatement<A>> StmtContext<A, ?, ?> findFirstEffectiveSubstatement(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> declaredType) {
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.effectiveSubstatements()) {
- if (subStmtContext.producesDeclared(declaredType)) {
- return (StmtContext<A, ?, ?>) subStmtContext;
- }
- }
- return null;
- }
-
- /**
- * Searches for the first substatement of the specified type in the specified statement context.
- * First, it tries to find the substatement in the effective substatements of the statement context.
- * If it was not found, then it proceeds to search in the declared substatements. If it still was not found,
- * the method returns null.
- *
- * @param stmtContext statement context to search in
- * @param declaredType substatement type to search for
- * @param <A> statement argument type
- * @param <D> declared statement type
- * @return statement context that was searched for or null if was not found
- * @deprecated Use {@link BoundStmtCtx#findSubstatementArgument(Class)} instead.
- */
- @Deprecated(forRemoval = true)
- public static <A, D extends DeclaredStatement<A>> StmtContext<A, ?, ?> findFirstSubstatement(
- final StmtContext<?, ?, ?> stmtContext, final Class<D> declaredType) {
- final StmtContext<A, ?, ?> effectiveSubstatement = findFirstEffectiveSubstatement(stmtContext, declaredType);
- return effectiveSubstatement != null ? effectiveSubstatement : findFirstDeclaredSubstatement(stmtContext,
- declaredType);
- }
-
- public static <D extends DeclaredStatement<?>> StmtContext<?, ?, ?> findFirstDeclaredSubstatementOnSublevel(
- final StmtContext<?, ?, ?> stmtContext, final Class<? super D> declaredType, int sublevel) {
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.declaredSubstatements()) {
- if (sublevel == 1 && subStmtContext.producesDeclared(declaredType)) {
- return subStmtContext;
- }
- if (sublevel > 1) {
- final StmtContext<?, ?, ?> result = findFirstDeclaredSubstatementOnSublevel(subStmtContext,
- declaredType, --sublevel);
- if (result != null) {
- return result;
- }
- }
- }
-
- return null;
- }
-
- public static <D extends DeclaredStatement<?>> StmtContext<?, ?, ?> findDeepFirstDeclaredSubstatement(
- final StmtContext<?, ?, ?> stmtContext, final Class<? super D> declaredType) {
- for (final StmtContext<?, ?, ?> subStmtContext : stmtContext.declaredSubstatements()) {
- if (subStmtContext.producesDeclared(declaredType)) {
- return subStmtContext;
- }
-
- final StmtContext<?, ?, ?> result = findDeepFirstDeclaredSubstatement(subStmtContext, declaredType);
- if (result != null) {
- return result;
- }
- }
-
- return null;
- }
-
- public static boolean isInExtensionBody(final StmtContext<?, ?, ?> stmtCtx) {
- StmtContext<?, ?, ?> current = stmtCtx;
-
- while (true) {
- final StmtContext<?, ?, ?> parent = current.coerceParentContext();
- if (parent.getParentContext() == null) {
- return false;
- }
- if (isUnknownStatement(parent)) {
- return true;
- }
- current = parent;
- }
- }
-
- /**
- * Returns true if supplied statement context represents unknown statement,
- * otherwise returns false.
- *
- * @param stmtCtx
- * statement context to be checked
- * @return true if supplied statement context represents unknown statement,
- * otherwise false
- * @throws NullPointerException
- * if supplied statement context is null
- */
- public static boolean isUnknownStatement(final StmtContext<?, ?, ?> stmtCtx) {
- return UnknownStatement.class.isAssignableFrom(stmtCtx.publicDefinition().getDeclaredRepresentationClass());
- }
-
- public static boolean checkFeatureSupport(final StmtContext<?, ?, ?> stmtContext,
- final Set<QName> supportedFeatures) {
- boolean isSupported = false;
- boolean containsIfFeature = false;
- for (final StmtContext<?, ?, ?> stmt : stmtContext.declaredSubstatements()) {
- if (YangStmtMapping.IF_FEATURE.equals(stmt.publicDefinition())) {
- containsIfFeature = true;
- @SuppressWarnings("unchecked")
- final Predicate<Set<QName>> argument = (Predicate<Set<QName>>) stmt.getArgument();
- if (argument.test(supportedFeatures)) {
- isSupported = true;
- } else {
- isSupported = false;
- break;
- }
- }
- }
-
- return !containsIfFeature || isSupported;
- }
-
- /**
- * Checks whether statement context is a presence container or not.
- *
- * @param stmtCtx
- * statement context
- * @return true if it is a presence container
- */
- public static boolean isPresenceContainer(final StmtContext<?, ?, ?> stmtCtx) {
- return stmtCtx.publicDefinition() == YangStmtMapping.CONTAINER && containsPresenceSubStmt(stmtCtx);
- }
-
- /**
- * Checks whether statement context is a non-presence container or not.
- *
- * @param stmtCtx
- * statement context
- * @return true if it is a non-presence container
- */
- public static boolean isNonPresenceContainer(final StmtContext<?, ?, ?> stmtCtx) {
- return stmtCtx.publicDefinition() == YangStmtMapping.CONTAINER && !containsPresenceSubStmt(stmtCtx);
- }
-
- private static boolean containsPresenceSubStmt(final StmtContext<?, ?, ?> stmtCtx) {
- return stmtCtx.hasSubstatement(PresenceEffectiveStatement.class);
- }
-
- /**
- * Checks whether statement context is a mandatory leaf, choice, anyxml,
- * list or leaf-list according to RFC6020 or not.
- *
- * @param stmtCtx
- * statement context
- * @return true if it is a mandatory leaf, choice, anyxml, list or leaf-list
- * according to RFC6020.
- */
- public static boolean isMandatoryNode(final StmtContext<?, ?, ?> stmtCtx) {
- if (!(stmtCtx.publicDefinition() instanceof YangStmtMapping)) {
- return false;
- }
- switch ((YangStmtMapping) stmtCtx.publicDefinition()) {
- case LEAF:
- case CHOICE:
- case ANYXML:
- return Boolean.TRUE.equals(firstSubstatementAttributeOf(stmtCtx, MandatoryStatement.class));
- case LIST:
- case LEAF_LIST:
- final Integer minElements = firstSubstatementAttributeOf(stmtCtx, MinElementsStatement.class);
- return minElements != null && minElements > 0;
- default:
- return false;
- }
- }
-
- /**
- * Checks whether a statement context is a statement of supplied statement
- * definition and whether it is not mandatory leaf, choice, anyxml, list or
- * leaf-list according to RFC6020.
- *
- * @param stmtCtx
- * statement context
- * @param stmtDef
- * statement definition
- * @return true if supplied statement context is a statement of supplied
- * statement definition and if it is not mandatory leaf, choice,
- * anyxml, list or leaf-list according to RFC6020
- */
- public static boolean isNotMandatoryNodeOfType(final StmtContext<?, ?, ?> stmtCtx,
- final StatementDefinition stmtDef) {
- return stmtCtx.publicDefinition().equals(stmtDef) && !isMandatoryNode(stmtCtx);
- }
-
- /**
- * Checks whether at least one ancestor of a StatementContext matches one from a collection of statement
- * definitions.
- *
- * @param stmt Statement context to be checked
- * @param ancestorTypes collection of statement definitions
- * @return true if at least one ancestor of a StatementContext matches one
- * from collection of statement definitions, otherwise false.
- */
- public static boolean hasAncestorOfType(final StmtContext<?, ?, ?> stmt,
- final Collection<StatementDefinition> ancestorTypes) {
- requireNonNull(ancestorTypes);
- StmtContext<?, ?, ?> current = stmt.getParentContext();
- while (current != null) {
- if (ancestorTypes.contains(current.publicDefinition())) {
- return true;
- }
- current = current.getParentContext();
- }
- return false;
- }
-
- /**
- * Check whether all of StmtContext's {@code list} ancestors have a {@code key}.
- *
- * @param stmt EffectiveStmtCtx to be checked
- * @param name Human-friendly statement name
- * @throws SourceException if there is any keyless list ancestor
- */
- public static void validateNoKeylessListAncestorOf(final Mutable<?, ?, ?> stmt, final String name) {
- requireNonNull(stmt);
-
- // We do not expect this to by typically populated
- final List<Mutable<?, ?, ?>> incomplete = new ArrayList<>(0);
-
- Mutable<?, ?, ?> current = stmt.coerceParentContext();
- Mutable<?, ?, ?> parent = current.getParentContext();
- while (parent != null) {
- if (YangStmtMapping.LIST == current.publicDefinition()
- && !current.hasSubstatement(KeyEffectiveStatement.class)) {
- if (ModelProcessingPhase.FULL_DECLARATION.isCompletedBy(current.getCompletedPhase())) {
- throw new SourceException(stmt, "%s %s is defined within a list that has no key statement", name,
- stmt.argument());
- }
-
- // Ancestor has not completed full declaration yet missing 'key' statement may materialize later
- incomplete.add(current);
- }
-
- current = parent;
- parent = current.getParentContext();
- }
-
- // Deal with whatever incomplete ancestors we encountered
- for (Mutable<?, ?, ?> ancestor : incomplete) {
- // This check must complete during the ancestor's FULL_DECLARATION phase, i.e. the ancestor must not reach
- // EFFECTIVE_MODEL until it is done.
- final ModelActionBuilder action = ancestor.newInferenceAction(ModelProcessingPhase.FULL_DECLARATION);
- action.apply(new InferenceAction() {
- @Override
- public void apply(final InferenceContext ctx) {
- if (!ancestor.hasSubstatement(KeyEffectiveStatement.class)) {
- throw new SourceException(stmt, "%s %s is defined within a list that has no key statement",
- name, stmt.argument());
- }
- }
-
- @Override
- public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
- throw new VerifyException("Should never happen");
- }
- });
- }
- }
-
- /**
- * Checks whether the parent of StmtContext is of specified type.
- *
- * @param ctx StmtContext to be checked
- * @param parentType type of parent to check
- * @return true if the parent of StmtContext is of specified type, otherwise false
- */
- public static boolean hasParentOfType(final StmtContext<?, ?, ?> ctx, final StatementDefinition parentType) {
- requireNonNull(parentType);
- final StmtContext<?, ?, ?> parentContext = ctx.getParentContext();
- return parentContext != null && parentType.equals(parentContext.publicDefinition());
- }
-
- /**
- * Validates the specified statement context with regards to if-feature and when statement on list keys.
- * The context can either be a leaf which is defined directly in the substatements of a keyed list or a uses
- * statement defined in a keyed list (a uses statement may add leaves into the list).
- *
- * <p>
- * If one of the list keys contains an if-feature or a when statement in YANG 1.1 model, an exception is thrown.
- *
- * @param ctx statement context to be validated
- */
- public static void validateIfFeatureAndWhenOnListKeys(final StmtContext<?, ?, ?> ctx) {
- if (!isRelevantForIfFeatureAndWhenOnListKeysCheck(ctx)) {
- return;
- }
-
- final StmtContext<?, ?, ?> listStmtCtx = ctx.coerceParentContext();
- final StmtContext<Set<QName>, ?, ?> keyStmtCtx = findFirstDeclaredSubstatement(listStmtCtx, KeyStatement.class);
-
- if (YangStmtMapping.LEAF.equals(ctx.publicDefinition())) {
- if (isListKey(ctx, keyStmtCtx)) {
- disallowIfFeatureAndWhenOnListKeys(ctx);
- }
- } else if (YangStmtMapping.USES.equals(ctx.publicDefinition())) {
- findAllEffectiveSubstatements(listStmtCtx, LeafStatement.class).forEach(leafStmtCtx -> {
- if (isListKey(leafStmtCtx, keyStmtCtx)) {
- disallowIfFeatureAndWhenOnListKeys(leafStmtCtx);
- }
- });
- }
- }
-
- private static boolean isRelevantForIfFeatureAndWhenOnListKeysCheck(final StmtContext<?, ?, ?> ctx) {
- return YangVersion.VERSION_1_1.equals(ctx.yangVersion()) && hasParentOfType(ctx, YangStmtMapping.LIST)
- && findFirstDeclaredSubstatement(ctx.coerceParentContext(), KeyStatement.class) != null;
- }
-
- private static boolean isListKey(final StmtContext<?, ?, ?> leafStmtCtx,
- final StmtContext<Set<QName>, ?, ?> keyStmtCtx) {
- return keyStmtCtx.getArgument().contains(leafStmtCtx.argument());
- }
-
- private static void disallowIfFeatureAndWhenOnListKeys(final StmtContext<?, ?, ?> leafStmtCtx) {
- leafStmtCtx.allSubstatements().forEach(leafSubstmtCtx -> {
- final StatementDefinition statementDef = leafSubstmtCtx.publicDefinition();
- SourceException.throwIf(YangStmtMapping.IF_FEATURE.equals(statementDef)
- || YangStmtMapping.WHEN.equals(statementDef), leafStmtCtx,
- "%s statement is not allowed in %s leaf statement which is specified as a list key.",
- statementDef.getStatementName(), leafStmtCtx.argument());
- });
- }
-
- public static @NonNull QName qnameFromArgument(StmtContext<?, ?, ?> ctx, final String value) {
- if (Strings.isNullOrEmpty(value)) {
- return ctx.publicDefinition().getStatementName();
- }
-
- String prefix;
- QNameModule qnameModule = null;
- String localName = null;
-
- final String[] namesParts = value.split(":");
- switch (namesParts.length) {
- case 1:
- localName = namesParts[0];
- qnameModule = getRootModuleQName(ctx);
- break;
- default:
- prefix = namesParts[0];
- localName = namesParts[1];
- qnameModule = getModuleQNameByPrefix(ctx, prefix);
- // in case of unknown statement argument, we're not going to parse it
- if (qnameModule == null && isUnknownStatement(ctx)) {
- localName = value;
- qnameModule = getRootModuleQName(ctx);
- }
- if (qnameModule == null && ctx.history().getLastOperation() == CopyType.ADDED_BY_AUGMENTATION) {
- ctx = ctx.getOriginalCtx().orElse(null);
- qnameModule = getModuleQNameByPrefix(ctx, prefix);
- }
- }
-
- return internedQName(ctx, InferenceException.throwIfNull(qnameModule, ctx,
- "Cannot resolve QNameModule for '%s'", value), localName);
- }
-
- /**
- * Parse a YANG identifier string in context of a statement.
- *
- * @param ctx Statement context
- * @param str String to be parsed
- * @return An interned QName
- * @throws NullPointerException if any of the arguments are null
- * @throws SourceException if the string is not a valid YANG identifier
- */
- public static @NonNull QName parseIdentifier(final StmtContext<?, ?, ?> ctx, final String str) {
- SourceException.throwIf(str.isEmpty(), ctx, "Identifier may not be an empty string");
- return internedQName(ctx, str);
- }
-
- public static @NonNull QName parseNodeIdentifier(final StmtContext<?, ?, ?> ctx, final String prefix,
- final String localName) {
- return internedQName(ctx,
- InferenceException.throwIfNull(getModuleQNameByPrefix(ctx, prefix), ctx,
- "Cannot resolve QNameModule for '%s'", prefix),
- localName);
- }
-
- /**
- * Parse a YANG node identifier string in context of a statement.
- *
- * @param ctx Statement context
- * @param str String to be parsed
- * @return An interned QName
- * @throws NullPointerException if any of the arguments are null
- * @throws SourceException if the string is not a valid YANG node identifier
- */
- public static @NonNull QName parseNodeIdentifier(final StmtContext<?, ?, ?> ctx, final String str) {
- SourceException.throwIf(str.isEmpty(), ctx, "Node identifier may not be an empty string");
-
- final int colon = str.indexOf(':');
- if (colon == -1) {
- return internedQName(ctx, str);
- }
-
- final String prefix = str.substring(0, colon);
- SourceException.throwIf(prefix.isEmpty(), ctx, "String '%s' has an empty prefix", str);
- final String localName = str.substring(colon + 1);
- SourceException.throwIf(localName.isEmpty(), ctx, "String '%s' has an empty identifier", str);
-
- return parseNodeIdentifier(ctx, prefix, localName);
- }
-
- private static @NonNull QName internedQName(final StmtContext<?, ?, ?> ctx, final String localName) {
- return internedQName(ctx, getRootModuleQName(ctx), localName);
- }
-
- private static @NonNull QName internedQName(final CommonStmtCtx ctx, final QNameModule module,
- final String localName) {
- final QName template;
- try {
- template = QName.create(module, localName);
- } catch (IllegalArgumentException e) {
- throw new SourceException(ctx, e, "Invalid identifier '%s'", localName);
- }
- return template.intern();
- }
-
- public static QNameModule getRootModuleQName(final StmtContext<?, ?, ?> ctx) {
- if (ctx == null) {
- return null;
- }
-
- final StmtContext<?, ?, ?> rootCtx = ctx.getRoot();
- final QNameModule qnameModule;
-
- if (rootCtx.producesDeclared(ModuleStatement.class)) {
- qnameModule = rootCtx.getFromNamespace(ModuleCtxToModuleQName.class, rootCtx);
- } else if (rootCtx.producesDeclared(SubmoduleStatement.class)) {
- final String belongsToModuleName = firstAttributeOf(rootCtx.declaredSubstatements(),
- BelongsToStatement.class);
- qnameModule = rootCtx.getFromNamespace(ModuleNameToModuleQName.class, belongsToModuleName);
- } else {
- qnameModule = null;
- }
-
- checkArgument(qnameModule != null, "Failed to look up root QNameModule for %s", ctx);
- return qnameModule;
- }
-
- public static QNameModule getModuleQNameByPrefix(final StmtContext<?, ?, ?> ctx, final String prefix) {
- final StmtContext<?, ?, ?> root = ctx.getRoot();
- final StmtContext<?, ?, ?> importedModule = root.getFromNamespace(ImportPrefixToModuleCtx.class, prefix);
- final QNameModule qnameModule = ctx.getFromNamespace(ModuleCtxToModuleQName.class, importedModule);
- if (qnameModule != null) {
- return qnameModule;
- }
-
- if (root.producesDeclared(SubmoduleStatement.class)) {
- final String moduleName = root.getFromNamespace(BelongsToPrefixToModuleName.class, prefix);
- return ctx.getFromNamespace(ModuleNameToModuleQName.class, moduleName);
- }
-
- return null;
- }
-
- public static Optional<Revision> getLatestRevision(final Iterable<? extends StmtContext<?, ?, ?>> subStmts) {
- Revision revision = null;
- for (final StmtContext<?, ?, ?> subStmt : subStmts) {
- if (subStmt.producesDeclared(RevisionStatement.class)) {
- if (revision == null && subStmt.argument() != null) {
- revision = (Revision) subStmt.argument();
- } else {
- final Revision subArg = (Revision) subStmt.argument();
- if (subArg != null && subArg.compareTo(revision) > 0) {
- revision = subArg;
- }
- }
- }
- }
- return Optional.ofNullable(revision);
- }
-}
Code Review / yangtools.git / blobdiff