*/
package org.opendaylight.mdsal.binding.runtime.api;
-import static java.util.Objects.requireNonNull;
-
import com.google.common.annotations.Beta;
-import com.google.common.base.MoreObjects;
-import com.google.common.collect.BiMap;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.Multimap;
-import java.lang.invoke.MethodHandles;
-import java.lang.invoke.VarHandle;
import java.util.Collection;
-import java.util.IdentityHashMap;
-import java.util.Map;
import java.util.Optional;
-import org.eclipse.jdt.annotation.NonNull;
import org.opendaylight.mdsal.binding.model.api.Type;
import org.opendaylight.yangtools.concepts.Immutable;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
import org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus;
-import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
import org.opendaylight.yangtools.yang.model.api.EffectiveModelContextProvider;
-import org.opendaylight.yangtools.yang.model.api.SchemaNode;
-import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Absolute;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
/**
* The result of BindingGenerator run. Contains mapping between Types and SchemaNodes.
*/
@Beta
-public final class BindingRuntimeTypes implements EffectiveModelContextProvider, Immutable {
- private static final Logger LOG = LoggerFactory.getLogger(BindingRuntimeTypes.class);
- private static final VarHandle TYPE_TO_IDENTIFIER;
-
- static {
- try {
- TYPE_TO_IDENTIFIER = MethodHandles.lookup().findVarHandle(BindingRuntimeTypes.class, "typeToIdentifier",
- ImmutableMap.class);
- } catch (NoSuchFieldException | IllegalAccessException e) {
- throw new ExceptionInInitializerError(e);
- }
- }
-
- private final @NonNull EffectiveModelContext schemaContext;
- private final ImmutableMap<Type, AugmentationSchemaNode> typeToAugmentation;
- private final ImmutableMap<Type, WithStatus> typeToSchema;
- private final ImmutableMultimap<Type, Type> choiceToCases;
- private final ImmutableMap<QName, Type> identities;
- // Not Immutable as we use two different implementations
- private final Map<WithStatus, Type> schemaToType;
-
- @SuppressWarnings("unused")
- // Accessed via TYPE_TO_IDENTIFIER
- private volatile ImmutableMap<Type, Absolute> typeToIdentifier = ImmutableMap.of();
-
- public BindingRuntimeTypes(final EffectiveModelContext schemaContext,
- final Map<Type, AugmentationSchemaNode> typeToAugmentation,
- final Map<Type, WithStatus> typeToSchema, final Map<WithStatus, Type> schemaToType,
- final Multimap<Type, Type> choiceToCases, final Map<QName, Type> identities) {
- this.schemaContext = requireNonNull(schemaContext);
- this.typeToAugmentation = ImmutableMap.copyOf(typeToAugmentation);
- this.typeToSchema = ImmutableMap.copyOf(typeToSchema);
- this.choiceToCases = ImmutableMultimap.copyOf(choiceToCases);
- this.identities = ImmutableMap.copyOf(identities);
-
- // Careful to use identity for SchemaNodes, but only if needed
- // FIXME: 8.0.0: YT should be switching to identity for equals(), so this should become unnecessary
- Map<WithStatus, Type> copy;
- try {
- copy = ImmutableMap.copyOf(schemaToType);
- } catch (IllegalArgumentException e) {
- LOG.debug("Equality-duplicates found in {}", schemaToType.keySet());
- copy = new IdentityHashMap<>(schemaToType);
- }
-
- this.schemaToType = copy;
- }
-
- public BindingRuntimeTypes(final EffectiveModelContext schemaContext,
- final Map<Type, AugmentationSchemaNode> typeToAugmentation,
- final BiMap<Type, WithStatus> typeToDefiningSchema,
- final Multimap<Type, Type> choiceToCases, final Map<QName, Type> identities) {
- this(schemaContext, typeToAugmentation, typeToDefiningSchema, typeToDefiningSchema.inverse(), choiceToCases,
- identities);
- }
-
- @Override
- public EffectiveModelContext getEffectiveModelContext() {
- return schemaContext;
- }
-
- public Optional<AugmentationSchemaNode> findAugmentation(final Type type) {
- return Optional.ofNullable(typeToAugmentation.get(type));
- }
-
- public Optional<Type> findIdentity(final QName qname) {
- return Optional.ofNullable(identities.get(qname));
- }
-
- public Optional<WithStatus> findSchema(final Type type) {
- return Optional.ofNullable(typeToSchema.get(type));
- }
-
- public Optional<Absolute> findSchemaNodeIdentifier(final Type type) {
- final ImmutableMap<Type, Absolute> local = (ImmutableMap<Type, Absolute>) TYPE_TO_IDENTIFIER.getAcquire(this);
- final Absolute existing = local.get(type);
- return existing != null ? Optional.of(existing) : loadSchemaNodeIdentifier(local, type);
- }
-
- public Optional<Type> findType(final WithStatus schema) {
- return Optional.ofNullable(schemaToType.get(schema));
- }
-
- public Multimap<Type, Type> getChoiceToCases() {
- return choiceToCases;
- }
-
- public Collection<Type> findCases(final Type choiceType) {
- return choiceToCases.get(choiceType);
- }
+public interface BindingRuntimeTypes extends EffectiveModelContextProvider, Immutable {
- @Override
- public String toString() {
- return MoreObjects.toStringHelper(this)
- .add("typeToAugmentation", typeToAugmentation)
- .add("typeToSchema", typeToSchema)
- .add("choiceToCases", choiceToCases)
- .add("identities", identities)
- .toString();
- }
+ Optional<AugmentationSchemaNode> findAugmentation(Type type);
- private Optional<Absolute> loadSchemaNodeIdentifier(final ImmutableMap<Type, Absolute> local, final Type type) {
- final WithStatus schema = typeToSchema.get(type);
- if (!(schema instanceof SchemaNode)) {
- return Optional.empty();
- }
+ Optional<Type> findIdentity(QName qname);
- // TODO: do not rely on getPath() here
- final Absolute created = Absolute.of(ImmutableList.copyOf(((SchemaNode) schema).getPath().getPathFromRoot()))
- .intern();
+ Optional<WithStatus> findSchema(Type type);
- ImmutableMap<Type, Absolute> prev = local;
- while (true) {
- // Compute next cache
- final ImmutableMap<Type, Absolute> next =
- ImmutableMap.<Type, Absolute>builderWithExpectedSize(prev.size() + 1)
- .putAll(prev)
- .put(type, created).build();
+ Optional<Type> findType(WithStatus schema);
- final Object witness = TYPE_TO_IDENTIFIER.compareAndExchangeRelease(this, prev, next);
- if (witness == prev) {
- // Cache populated successfully, we are all done now
- return Optional.of(created);
- }
+ Optional<Type> findOriginalAugmentationType(AugmentationSchemaNode augment);
- // Remember cache for next computation
- prev = (ImmutableMap<Type, Absolute>) witness;
- final Absolute raced = prev.get(type);
- if (raced != null) {
- // We have raced on this item, use it from cache
- return Optional.of(raced);
- }
+ Multimap<Type, Type> getChoiceToCases();
- // We have raced on a different item, loop around and repeat
- }
- }
+ Collection<Type> findCases(Type choiceType);
}
Code Review / mdsal.git / blobdiff