*/
package org.opendaylight.yangtools.yang.parser.stmt.reactor;
+import static com.google.common.base.Verify.verify;
import static java.util.Objects.requireNonNull;
+import com.google.common.base.VerifyException;
import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Streams;
import java.util.ArrayList;
import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
import java.util.List;
+import java.util.Map;
+import java.util.Objects;
import java.util.Optional;
+import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
+import org.opendaylight.yangtools.concepts.Immutable;
+import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.common.QNameModule;
import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-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.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
-import org.opendaylight.yangtools.yang.parser.spi.meta.CopyHistory;
+import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
+import org.opendaylight.yangtools.yang.parser.spi.SchemaTreeNamespace;
import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
-import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.NamespaceStorageNode;
+import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
+import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.OnDemandSchemaTreeStorageNode;
import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceBehaviour.StorageNodeType;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StatementFactory;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
* effective substatements, which are either transformed from that prototype or added by inference.
*/
final class InferredStatementContext<A, D extends DeclaredStatement<A>, E extends EffectiveStatement<A, D>>
- extends StatementContextBase<A, D, E> {
+ extends StatementContextBase<A, D, E> implements OnDemandSchemaTreeStorageNode {
+ // An effective copy view, with enough information to decide what to do next
+ private static final class EffectiveCopy implements Immutable {
+ // Original statement
+ private final ReactorStmtCtx<?, ?, ?> orig;
+ // Effective view, if the statement is to be reused it equals to orig
+ private final ReactorStmtCtx<?, ?, ?> copy;
+
+ EffectiveCopy(final ReactorStmtCtx<?, ?, ?> orig, final ReactorStmtCtx<?, ?, ?> copy) {
+ this.orig = requireNonNull(orig);
+ this.copy = requireNonNull(copy);
+ }
+
+ boolean isReused() {
+ return orig == copy;
+ }
+
+ ReactorStmtCtx<?, ?, ?> toChildContext(final @NonNull InferredStatementContext<?, ?, ?> parent) {
+ return isReused() ? orig.replicaAsChildOf(parent) : copy;
+ }
+
+ ReactorStmtCtx<?, ?, ?> toReusedChild(final @NonNull InferredStatementContext<?, ?, ?> parent) {
+ verify(isReused(), "Attempted to discard copy %s", copy);
+ return orig.replicaAsChildOf(parent);
+ }
+ }
+
private static final Logger LOG = LoggerFactory.getLogger(InferredStatementContext.class);
+ // Sentinel objects for 'substatements', String is a good enough type
+ private static final @NonNull String REUSED_SUBSTATEMENTS = "reused";
+ private static final @NonNull String SWEPT_SUBSTATEMENTS = "swept";
+
private final @NonNull StatementContextBase<A, D, E> prototype;
private final @NonNull StatementContextBase<?, ?, ?> parent;
private final @NonNull StmtContext<A, D, E> originalCtx;
+ // TODO: consider encoding this in StatementContextBase fields, there should be plenty of room
private final @NonNull CopyType childCopyType;
private final QNameModule targetModule;
private final A argument;
+ /**
+ * Effective substatements, lazily materialized. This field can have four states:
+ * <ul>
+ * <li>it can be {@code null}, in which case no materialization has taken place</li>
+ * <li>it can be a {@link HashMap}, in which case partial materialization has taken place</li>
+ * <li>it can be a {@link List}, in which case full materialization has taken place</li>
+ * <li>it can be {@link SWEPT_SUBSTATEMENTS}, in which case materialized state is no longer available</li>
+ * </ul>
+ */
+ private Object substatements;
+
private InferredStatementContext(final InferredStatementContext<A, D, E> original,
final StatementContextBase<?, ?, ?> parent) {
super(original);
this.prototype = original.prototype;
this.originalCtx = original.originalCtx;
this.argument = original.argument;
+ // Substatements are initialized here
+ this.substatements = ImmutableList.of();
}
InferredStatementContext(final StatementContextBase<?, ?, ?> parent, final StatementContextBase<A, D, E> prototype,
final CopyType myCopyType, final CopyType childCopyType, final QNameModule targetModule) {
- super(prototype.definition(), CopyHistory.of(myCopyType, prototype.getCopyHistory()));
+ super(prototype, myCopyType);
this.parent = requireNonNull(parent);
this.prototype = requireNonNull(prototype);
- this.argument = targetModule == null ? prototype.getStatementArgument()
+ this.argument = targetModule == null ? prototype.argument()
: prototype.definition().adaptArgumentValue(prototype, targetModule);
this.childCopyType = requireNonNull(childCopyType);
this.targetModule = targetModule;
this.originalCtx = prototype.getOriginalCtx().orElse(prototype);
- // FIXME: YANGTOOLS-784: instantiate these lazily
- addEffectiveSubstatements(createEffective());
+ // Mark prototype as blocking statement cleanup
+ prototype.incRef();
}
@Override
return ImmutableList.of();
}
+ @Override
+ public Collection<? extends Mutable<?, ?, ?>> mutableEffectiveSubstatements() {
+ return mutableEffectiveSubstatements(ensureEffectiveSubstatements());
+ }
+
@Override
public Iterable<? extends StmtContext<?, ?, ?>> allSubstatements() {
// No need to concat with declared
}
@Override
- public StatementSourceReference getStatementSourceReference() {
- return originalCtx.getStatementSourceReference();
+ public StatementSourceReference sourceReference() {
+ return originalCtx.sourceReference();
}
@Override
- public String rawStatementArgument() {
- return originalCtx.rawStatementArgument();
+ public String rawArgument() {
+ return originalCtx.rawArgument();
}
@Override
}
@Override
- public D buildDeclared() {
+ public D declared() {
/*
* Share original instance of declared statement between all effective statements which have been copied or
* derived from this original declared statement.
*/
- return originalCtx.buildDeclared();
+ return originalCtx.declared();
+ }
+
+ @Override
+ public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef) {
+ substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef);
+ }
+
+ @Override
+ public void removeStatementFromEffectiveSubstatements(final StatementDefinition statementDef,
+ final String statementArg) {
+ substatements = removeStatementFromEffectiveSubstatements(ensureEffectiveSubstatements(), statementDef,
+ statementArg);
+ }
+
+ @Override
+ public void addEffectiveSubstatement(final Mutable<?, ?, ?> substatement) {
+ substatements = addEffectiveSubstatement(ensureEffectiveSubstatements(), substatement);
+ }
+
+ @Override
+ void addEffectiveSubstatementsImpl(final Collection<? extends Mutable<?, ?, ?>> statements) {
+ substatements = addEffectiveSubstatementsImpl(ensureEffectiveSubstatements(), statements);
}
@Override
return new InferredStatementContext<>(this, newParent);
}
+ @Override
+ E createEffective(final StatementFactory<A, D, E> factory) {
+ // If we have not materialized we do not have a difference in effective substatements, hence we can forward
+ // towards the source of the statement.
+ accessSubstatements();
+ return substatements == null ? tryToReusePrototype(factory) : super.createEffective(factory);
+ }
+
+ private @NonNull E tryToReusePrototype(final StatementFactory<A, D, E> factory) {
+ final E origEffective = prototype.buildEffective();
+ final Collection<? extends @NonNull EffectiveStatement<?, ?>> origSubstatements =
+ origEffective.effectiveSubstatements();
+
+ // First check if we can reuse the entire prototype
+ if (!factory.canReuseCurrent(this, prototype, origSubstatements)) {
+ // FIXME: YANGTOOLS-1214: deduplicate this return
+ return tryToReuseSubstatements(factory, origEffective);
+ }
+
+ // We can reuse this statement let's see if all statements agree...
+ // ... no substatements to deal with, we can freely reuse the original
+ if (origSubstatements.isEmpty()) {
+ LOG.debug("Reusing empty: {}", origEffective);
+ substatements = ImmutableList.of();
+ prototype.decRef();
+ return origEffective;
+ }
+
+ // ... all are context independent, reuse the original
+ if (allSubstatementsContextIndependent()) {
+ LOG.debug("Reusing context-independent: {}", origEffective);
+ substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
+ prototype.decRef();
+ return origEffective;
+ }
+
+ // ... copy-sensitive check
+ final List<EffectiveCopy> declCopy = prototype.streamDeclared()
+ .map(sub -> effectiveCopy((ReactorStmtCtx<?, ?, ?>) sub))
+ .filter(Objects::nonNull)
+ .collect(Collectors.toUnmodifiableList());
+ final List<EffectiveCopy> effCopy = prototype.streamEffective()
+ .map(sub -> effectiveCopy((ReactorStmtCtx<?, ?, ?>) sub))
+ .filter(Objects::nonNull)
+ .collect(Collectors.toUnmodifiableList());
+
+ // ... are any copy-sensitive?
+ if (allReused(declCopy) && allReused(effCopy)) {
+ LOG.debug("Reusing after substatement check: {}", origEffective);
+ substatements = noRefs() ? REUSED_SUBSTATEMENTS
+ : reusePrototypeReplicas(Streams.concat(declCopy.stream(), effCopy.stream())
+ .map(copy -> copy.toReusedChild(this)));
+ prototype.decRef();
+ return origEffective;
+ }
+
+ // *sigh*, ok, heavy lifting through a shallow copy
+ final List<ReactorStmtCtx<?, ?, ?>> declared = declCopy.stream()
+ .map(copy -> copy.toChildContext(this))
+ .collect(ImmutableList.toImmutableList());
+ final List<ReactorStmtCtx<?, ?, ?>> effective = effCopy.stream()
+ .map(copy -> copy.toChildContext(this))
+ .collect(ImmutableList.toImmutableList());
+ substatements = declared.isEmpty() ? effective
+ : Streams.concat(declared.stream(), effective.stream()).collect(ImmutableList.toImmutableList());
+ prototype.decRef();
+
+ // Values are the effective copies, hence this efficiently deals with recursion.
+ // FIXME: YANGTOOLS-1214: deduplicate this return
+ return factory.createEffective(this, declared.stream(), effective.stream());
+ }
+
+ private @NonNull E tryToReuseSubstatements(final StatementFactory<A, D, E> factory, final @NonNull E original) {
+ if (allSubstatementsContextIndependent()) {
+ LOG.debug("Reusing substatements of: {}", prototype);
+ substatements = noRefs() ? REUSED_SUBSTATEMENTS : reusePrototypeReplicas();
+ prototype.decRef();
+ return factory.copyEffective(this, original);
+ }
+
+ // Fall back to full instantiation, which populates our substatements. Then check if we should be reusing
+ // the substatement list, as this operation turned out to not affect them.
+ final E effective = super.createEffective(factory);
+ // Since we have forced instantiation to deal with this case, we also need to reset the 'modified' flag
+ setUnmodified();
+
+ if (sameSubstatements(original.effectiveSubstatements(), effective)) {
+ LOG.debug("Reusing unchanged substatements of: {}", prototype);
+ return factory.copyEffective(this, original);
+ }
+ return effective;
+ }
+
+ private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas() {
+ return reusePrototypeReplicas(Streams.concat(prototype.streamDeclared(), prototype.streamEffective()));
+ }
+
+ private List<ReactorStmtCtx<?, ?, ?>> reusePrototypeReplicas(final Stream<StmtContext<?, ?, ?>> stream) {
+ return stream
+ .map(stmt -> {
+ final ReplicaStatementContext<?, ?, ?> ret = ((ReactorStmtCtx<?, ?, ?>) stmt).replicaAsChildOf(this);
+ ret.buildEffective();
+ return ret;
+ })
+ .collect(Collectors.toUnmodifiableList());
+ }
+
+ private static boolean sameSubstatements(final Collection<?> original, final EffectiveStatement<?, ?> effective) {
+ final Collection<?> copied = effective.effectiveSubstatements();
+ if (copied != effective.effectiveSubstatements() || original.size() != copied.size()) {
+ // Do not bother if result is treating substatements as transient
+ return false;
+ }
+
+ final Iterator<?> oit = original.iterator();
+ final Iterator<?> cit = copied.iterator();
+ while (oit.hasNext()) {
+ verify(cit.hasNext());
+ // Identity comparison on purpose to side-step whatever equality there might be. We want to reuse instances
+ // after all.
+ if (oit.next() != cit.next()) {
+ return false;
+ }
+ }
+ verify(!cit.hasNext());
+ return true;
+ }
+
+ private static boolean allReused(final List<EffectiveCopy> entries) {
+ return entries.stream().allMatch(EffectiveCopy::isReused);
+ }
+
+ @Override
+ ReactorStmtCtx<A, D, E> unmodifiedEffectiveSource() {
+ return isModified() ? this : prototype.unmodifiedEffectiveSource();
+ }
+
+ @Override
+ boolean hasEmptySubstatements() {
+ if (substatements == null) {
+ return prototype.hasEmptySubstatements();
+ }
+ return substatements instanceof HashMap ? false : ((List<?>) substatements).isEmpty();
+ }
+
+ @Override
+ boolean noSensitiveSubstatements() {
+ accessSubstatements();
+ if (substatements == null) {
+ // No difference, defer to prototype
+ return prototype.allSubstatementsContextIndependent();
+ }
+ if (substatements instanceof List) {
+ // Fully materialized, walk all statements
+ return noSensitiveSubstatements(castEffective(substatements));
+ }
+
+ // Partially-materialized. This case has three distinct outcomes:
+ // - prototype does not have a sensitive statement (1)
+ // - protype has a sensitive substatement, and
+ // - we have not marked is as unsupported (2)
+ // - we have marked it as unsupported (3)
+ //
+ // Determining the outcome between (2) and (3) is a bother, this check errs on the side of false negative side
+ // and treats (3) as (2) -- i.e. even if we marked a sensitive statement as unsupported, we still consider it
+ // as affecting the result.
+ return prototype.allSubstatementsContextIndependent()
+ && noSensitiveSubstatements(castMaterialized(substatements).values());
+ }
+
+ @Override
+ <X, Z extends EffectiveStatement<X, ?>> @NonNull Optional<X> findSubstatementArgumentImpl(
+ final @NonNull Class<Z> type) {
+ if (substatements instanceof List) {
+ return super.findSubstatementArgumentImpl(type);
+ }
+
+ final Optional<X> templateArg = prototype.findSubstatementArgument(type);
+ if (templateArg.isEmpty()) {
+ return templateArg;
+ }
+ if (SchemaTreeEffectiveStatement.class.isAssignableFrom(type)) {
+ // X is known to be QName
+ return (Optional<X>) templateArg.map(template -> ((QName) template).bindTo(targetModule));
+ }
+ return templateArg;
+ }
+
+ @Override
+ boolean hasSubstatementImpl(final @NonNull Class<? extends EffectiveStatement<?, ?>> type) {
+ return substatements instanceof List ? super.hasSubstatementImpl(type)
+ // We do not allow deletion of partially-materialized statements, hence this is accurate
+ : prototype.hasSubstatement(type);
+ }
+
+ @Override
+ public <Y extends DeclaredStatement<QName>, Z extends SchemaTreeEffectiveStatement<Y>>
+ StmtContext<QName, Y, Z> requestSchemaTreeChild(final QName qname) {
+ if (substatements instanceof List) {
+ // We have performed materialization, hence we have triggered creation of all our schema tree child
+ // statements.
+ return null;
+ }
+
+ final QName templateQName = qname.bindTo(StmtContextUtils.getRootModuleQName(prototype));
+ LOG.debug("Materializing child {} from {}", qname, templateQName);
+
+ final StmtContext<?, ?, ?> template;
+ if (prototype instanceof InferredStatementContext) {
+ // Note: we need to access namespace here, as the target statement may have already been populated, in which
+ // case we want to obtain the statement in local namespace storage.
+ template = (StmtContext) ((InferredStatementContext<?, ?, ?>) prototype).getFromNamespace(
+ SchemaTreeNamespace.class, templateQName);
+ } else {
+ template = prototype.allSubstatementsStream()
+ .filter(stmt -> stmt.producesEffective(SchemaTreeEffectiveStatement.class)
+ && templateQName.equals(stmt.argument()))
+ .findAny()
+ .orElse(null);
+ }
+
+ if (template == null) {
+ // We do not have a template, this child does not exist. It may be added later, but that is someone else's
+ // responsibility.
+ LOG.debug("Child {} does not have a template", qname);
+ return null;
+ }
+
+ @SuppressWarnings("unchecked")
+ final Mutable<QName, Y, Z> ret = (Mutable<QName, Y, Z>) copySubstatement((Mutable<?, ?, ?>) template)
+ .orElseThrow(
+ () -> new InferenceException(this, "Failed to materialize child %s template %s", qname, template));
+ ensureCompletedPhase(ret);
+ addMaterialized(template, ret);
+
+ LOG.debug("Child {} materialized", qname);
+ return ret;
+ }
+
// Instantiate this statement's effective substatements. Note this method has side-effects in namespaces and overall
// BuildGlobalContext, hence it must be called at most once.
- private List<Mutable<?, ?, ?>> createEffective() {
+ private List<ReactorStmtCtx<?, ?, ?>> ensureEffectiveSubstatements() {
+ accessSubstatements();
+ return substatements instanceof List ? castEffective(substatements)
+ : initializeSubstatements(castMaterialized(substatements));
+ }
+
+ @Override
+ Iterable<ReactorStmtCtx<?, ?, ?>> effectiveChildrenToComplete() {
+ // When we have not initialized, there are no statements to catch up: we will catch up when we are copying
+ // from prototype (which is already at ModelProcessingPhase.EFFECTIVE_MODEL).
+ if (substatements == null) {
+ return ImmutableList.of();
+ }
+ accessSubstatements();
+ if (substatements instanceof HashMap) {
+ return castMaterialized(substatements).values();
+ } else {
+ return castEffective(substatements);
+ }
+ }
+
+ @Override
+ Stream<? extends @NonNull StmtContext<?, ?, ?>> streamDeclared() {
+ return Stream.empty();
+ }
+
+ @Override
+ Stream<? extends @NonNull StmtContext<?, ?, ?>> streamEffective() {
+ return ensureEffectiveSubstatements().stream().filter(StmtContext::isSupportedToBuildEffective);
+ }
+
+ private void accessSubstatements() {
+ if (substatements instanceof String) {
+ throw new VerifyException("Access to " + substatements + " substatements of " + this);
+ }
+ }
+
+ @Override
+ void markNoParentRef() {
+ final Object local = substatements;
+ if (local != null) {
+ markNoParentRef(castEffective(local));
+ }
+ }
+
+ @Override
+ int sweepSubstatements() {
+ final Object local = substatements;
+ substatements = SWEPT_SUBSTATEMENTS;
+ int count = 0;
+ if (local instanceof List) {
+ final List<ReactorStmtCtx<?, ?, ?>> list = castEffective(local);
+ sweep(list);
+ count = countUnswept(list);
+ }
+ return count;
+ }
+
+ private List<ReactorStmtCtx<?, ?, ?>> initializeSubstatements(
+ final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree) {
final Collection<? extends StatementContextBase<?, ?, ?>> declared = prototype.mutableDeclaredSubstatements();
final Collection<? extends Mutable<?, ?, ?>> effective = prototype.mutableEffectiveSubstatements();
- final List<Mutable<?, ?, ?>> buffer = new ArrayList<>(declared.size() + effective.size());
+ final List<Mutable<?, ?, ?>> buffer = new ArrayList<>(declared.size() + effective.size());
for (final Mutable<?, ?, ?> stmtContext : declared) {
if (stmtContext.isSupportedByFeatures()) {
- copySubstatement(stmtContext, buffer);
+ copySubstatement(stmtContext, buffer, materializedSchemaTree);
}
}
for (final Mutable<?, ?, ?> stmtContext : effective) {
- copySubstatement(stmtContext, buffer);
+ copySubstatement(stmtContext, buffer, materializedSchemaTree);
}
- return buffer;
+ final List<ReactorStmtCtx<?, ?, ?>> ret = beforeAddEffectiveStatementUnsafe(ImmutableList.of(), buffer.size());
+ ret.addAll((Collection) buffer);
+ substatements = ret;
+ setModified();
+
+ prototype.decRef();
+ return ret;
}
- // Statement copy mess starts here
//
- // FIXME: This is messy and is probably wrong in some corner case. Even if it is correct, the way how it is correct
- // relies on hard-coded maps. At the end of the day, the logic needs to be controlled by statement's
- // StatementSupport.
- // FIXME: YANGTOOLS-652: this map looks very much like UsesStatementSupport.TOP_REUSED_DEF_SET
- private static final ImmutableSet<YangStmtMapping> REUSED_DEF_SET = ImmutableSet.of(
- YangStmtMapping.TYPE,
- YangStmtMapping.TYPEDEF,
- YangStmtMapping.USES);
+ // Statement copy mess starts here. As it turns out, it's not that much of a mess, but it does make your head spin
+ // sometimes. Tread softly because you tread on my dreams.
+ //
+
+ private EffectiveCopy effectiveCopy(final ReactorStmtCtx<?, ?, ?> stmt) {
+ final ReactorStmtCtx<?, ?, ?> effective = stmt.asEffectiveChildOf(this, childCopyType, targetModule);
+ return effective == null ? null : new EffectiveCopy(stmt, effective);
+ }
+
+ private void copySubstatement(final Mutable<?, ?, ?> substatement, final Collection<Mutable<?, ?, ?>> buffer,
+ final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree) {
+ // Consult materialized substatements. We are in a copy operation and will end up throwing materialized
+ // statements away -- hence we do not perform Map.remove() to save ourselves a mutation operation.
+ //
+ // We could also perform a Map.containsKey() and perform a bulk add, but that would mean the statement order
+ // against parent would change -- and we certainly do not want that to happen.
+ final ReactorStmtCtx<?, ?, ?> materialized = findMaterialized(materializedSchemaTree, substatement);
+ if (materialized == null) {
+ copySubstatement(substatement).ifPresent(copy -> {
+ ensureCompletedPhase(copy);
+ buffer.add(copy);
+ });
+ } else {
+ buffer.add(materialized);
+ }
+ }
- private void copySubstatement(final Mutable<?, ?, ?> substatement, final Collection<Mutable<?, ?, ?>> buffer) {
- final StatementDefinition def = substatement.getPublicDefinition();
+ private Optional<? extends Mutable<?, ?, ?>> copySubstatement(final Mutable<?, ?, ?> substatement) {
+ return substatement.copyAsChildOf(this, childCopyType, targetModule);
+ }
+
+ private void addMaterialized(final StmtContext<?, ?, ?> template, final Mutable<?, ?, ?> copy) {
+ final HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree;
+ if (substatements == null) {
+ // Lazy initialization of backing map. We do not expect this to be used often or multiple times -- each hit
+ // here means an inference along schema tree, such as deviate/augment. HashMap requires power-of-two and
+ // defaults to 0.75 load factor -- we therefore size it to 4, i.e. next two inserts will not cause a
+ // resizing operation.
+ materializedSchemaTree = new HashMap<>(4);
+ substatements = materializedSchemaTree;
+ setModified();
+ } else {
+ verify(substatements instanceof HashMap, "Unexpected substatements %s", substatements);
+ materializedSchemaTree = castMaterialized(substatements);
+ }
- // FIXME: YANGTOOLS-652: formerly known as "isReusedByUses"
- if (REUSED_DEF_SET.contains(def)) {
- LOG.debug("Reusing substatement {} for {}", substatement, this);
- buffer.add(substatement);
- return;
+ final StmtContext<?, ?, ?> existing = materializedSchemaTree.put(template,
+ (StatementContextBase<?, ?, ?>) copy);
+ if (existing != null) {
+ throw new VerifyException(
+ "Unexpected duplicate request for " + copy.argument() + " previous result was " + existing);
}
+ }
+
+ private static @Nullable ReactorStmtCtx<?, ?, ?> findMaterialized(
+ final Map<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> materializedSchemaTree,
+ final StmtContext<?, ?, ?> template) {
+ return materializedSchemaTree == null ? null : materializedSchemaTree.get(template);
+ }
+
+ @SuppressWarnings("unchecked")
+ private static List<ReactorStmtCtx<?, ?, ?>> castEffective(final Object substatements) {
+ return (List<ReactorStmtCtx<?, ?, ?>>) substatements;
+ }
- substatement.copyAsChildOf(this, childCopyType, targetModule).ifPresent(buffer::add);
+ @SuppressWarnings("unchecked")
+ private static HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>> castMaterialized(final Object substatements) {
+ return (HashMap<StmtContext<?, ?, ?>, ReactorStmtCtx<?, ?, ?>>) substatements;
}
// Statement copy mess ends here
* properly updated there.
*/
@Override
- public Optional<SchemaPath> getSchemaPath() {
+ @Deprecated
+ public SchemaPath schemaPath() {
return substatementGetSchemaPath();
}
@Override
- public A getStatementArgument() {
+ public A argument() {
return argument;
}
}
@Override
- public NamespaceStorageNode getParentNamespaceStorage() {
+ public StatementContextBase<?, ?, ?> getParentNamespaceStorage() {
return parent;
}
}
@Override
- public boolean isConfiguration() {
- return isConfiguration(parent);
+ public EffectiveConfig effectiveConfig() {
+ return effectiveConfig(parent);
}
@Override
Code Review / yangtools.git / blobdiff