package org.opendaylight.mdsal.binding.dom.codec.impl;
import com.google.common.collect.Iterables;
-import javax.annotation.concurrent.GuardedBy;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.VarHandle;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode.ChildAddressabilitySummary;
import org.opendaylight.mdsal.binding.dom.codec.impl.NodeCodecContext.CodecContextFactory;
+import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.DataRoot;
import org.opendaylight.yangtools.yang.binding.Identifiable;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.Item;
import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
-import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
+import org.opendaylight.yangtools.yang.model.api.AnydataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.AnyxmlSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.ContainerLike;
import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.model.api.TypedDataSchemaNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
-final class DataContainerCodecPrototype<T> implements NodeContextSupplier {
+final class DataContainerCodecPrototype<T extends WithStatus> implements NodeContextSupplier {
+ private static final Logger LOG = LoggerFactory.getLogger(DataContainerCodecPrototype.class);
+
+ private static final VarHandle INSTANCE;
+
+ static {
+ try {
+ INSTANCE = MethodHandles.lookup().findVarHandle(DataContainerCodecPrototype.class,
+ "instance", DataContainerCodecContext.class);
+ } catch (NoSuchFieldException | IllegalAccessException e) {
+ throw new ExceptionInInitializerError(e);
+ }
+ }
private final T schema;
private final QNameModule namespace;
private final CodecContextFactory factory;
- private final Class<?> bindingClass;
- private final InstanceIdentifier.Item<?> bindingArg;
- private final YangInstanceIdentifier.PathArgument yangArg;
- private volatile DataContainerCodecContext<?,T> instance = null;
+ private final Item<?> bindingArg;
+ private final PathArgument yangArg;
+ private final ChildAddressabilitySummary childAddressabilitySummary;
+
+ // Accessed via INSTANCE
+ @SuppressWarnings("unused")
+ private volatile DataContainerCodecContext<?, T> instance;
- @SuppressWarnings({"rawtypes", "unchecked"})
- private DataContainerCodecPrototype(final Class<?> cls, final YangInstanceIdentifier.PathArgument arg, final T nodeSchema,
+ @SuppressWarnings("unchecked")
+ private DataContainerCodecPrototype(final Class<?> cls, final PathArgument arg, final T nodeSchema,
final CodecContextFactory factory) {
- this.bindingClass = cls;
+ this(Item.of((Class<? extends DataObject>) cls), arg, nodeSchema, factory);
+ }
+
+ private DataContainerCodecPrototype(final Item<?> bindingArg, final PathArgument arg, final T nodeSchema,
+ final CodecContextFactory factory) {
+ this.bindingArg = bindingArg;
this.yangArg = arg;
this.schema = nodeSchema;
this.factory = factory;
- this.bindingArg = new InstanceIdentifier.Item(bindingClass);
if (arg instanceof AugmentationIdentifier) {
- this.namespace = Iterables.getFirst(((AugmentationIdentifier) arg).getPossibleChildNames(), null).getModule();
+ this.namespace = Iterables.getFirst(((AugmentationIdentifier) arg).getPossibleChildNames(), null)
+ .getModule();
} else {
this.namespace = arg.getNodeType().getModule();
}
+
+ this.childAddressabilitySummary = computeChildAddressabilitySummary(nodeSchema);
+ }
+
+ private static ChildAddressabilitySummary computeChildAddressabilitySummary(final WithStatus nodeSchema) {
+ if (nodeSchema instanceof DataNodeContainer) {
+ boolean haveAddressable = false;
+ boolean haveUnaddressable = false;
+ for (DataSchemaNode child : ((DataNodeContainer) nodeSchema).getChildNodes()) {
+ if (child instanceof ContainerSchemaNode || child instanceof AugmentationSchemaNode) {
+ haveAddressable = true;
+ } else if (child instanceof ListSchemaNode) {
+ if (((ListSchemaNode) child).getKeyDefinition().isEmpty()) {
+ haveUnaddressable = true;
+ } else {
+ haveAddressable = true;
+ }
+ } else if (child instanceof AnydataSchemaNode || child instanceof AnyxmlSchemaNode
+ || child instanceof TypedDataSchemaNode) {
+ haveUnaddressable = true;
+ } else if (child instanceof ChoiceSchemaNode) {
+ switch (computeChildAddressabilitySummary(child)) {
+ case ADDRESSABLE:
+ haveAddressable = true;
+ break;
+ case MIXED:
+ haveAddressable = true;
+ haveUnaddressable = true;
+ break;
+ case UNADDRESSABLE:
+ haveUnaddressable = true;
+ break;
+ default:
+ throw new IllegalStateException("Unhandled accessibility summary for " + child);
+ }
+ } else {
+ LOG.warn("Unhandled child node {}", child);
+ }
+ }
+
+ if (!haveAddressable) {
+ // Empty or all are unaddressable
+ return ChildAddressabilitySummary.UNADDRESSABLE;
+ }
+
+ return haveUnaddressable ? ChildAddressabilitySummary.MIXED : ChildAddressabilitySummary.ADDRESSABLE;
+ } else if (nodeSchema instanceof ChoiceSchemaNode) {
+ boolean haveAddressable = false;
+ boolean haveUnaddressable = false;
+ for (CaseSchemaNode child : ((ChoiceSchemaNode) nodeSchema).getCases()) {
+ switch (computeChildAddressabilitySummary(child)) {
+ case ADDRESSABLE:
+ haveAddressable = true;
+ break;
+ case UNADDRESSABLE:
+ haveUnaddressable = true;
+ break;
+ case MIXED:
+ // A child is mixed, which means we are mixed, too
+ return ChildAddressabilitySummary.MIXED;
+ default:
+ throw new IllegalStateException("Unhandled accessibility summary for " + child);
+ }
+ }
+
+ if (!haveAddressable) {
+ // Empty or all are unaddressable
+ return ChildAddressabilitySummary.UNADDRESSABLE;
+ }
+
+ return haveUnaddressable ? ChildAddressabilitySummary.MIXED : ChildAddressabilitySummary.ADDRESSABLE;
+ }
+
+ // No child nodes possible: return unaddressable
+ return ChildAddressabilitySummary.UNADDRESSABLE;
+ }
+
+ static DataContainerCodecPrototype<EffectiveModelContext> rootPrototype(final CodecContextFactory factory) {
+ final EffectiveModelContext schema = factory.getRuntimeContext().getEffectiveModelContext();
+ final NodeIdentifier arg = NodeIdentifier.create(SchemaContext.NAME);
+ return new DataContainerCodecPrototype<>(DataRoot.class, arg, schema, factory);
}
- @SuppressWarnings({ "unchecked", "rawtypes" })
static <T extends DataSchemaNode> DataContainerCodecPrototype<T> from(final Class<?> cls, final T schema,
final CodecContextFactory factory) {
- return new DataContainerCodecPrototype(cls, NodeIdentifier.create(schema.getQName()), schema, factory);
+ return new DataContainerCodecPrototype<>(cls, NodeIdentifier.create(schema.getQName()), schema, factory);
}
- static DataContainerCodecPrototype<SchemaContext> rootPrototype(final CodecContextFactory factory) {
- final SchemaContext schema = factory.getRuntimeContext().getSchemaContext();
- final NodeIdentifier arg = NodeIdentifier.create(schema.getQName());
- return new DataContainerCodecPrototype<SchemaContext>(DataRoot.class, arg, schema, factory);
+ static <T extends DataSchemaNode> DataContainerCodecPrototype<T> from(final Item<?> bindingArg, final T schema,
+ final CodecContextFactory factory) {
+ return new DataContainerCodecPrototype<>(bindingArg, NodeIdentifier.create(schema.getQName()), schema, factory);
}
-
- @SuppressWarnings({ "rawtypes", "unchecked" })
- static DataContainerCodecPrototype<?> from(final Class<?> augClass, final AugmentationIdentifier arg,
- final AugmentationSchema schema, final CodecContextFactory factory) {
- return new DataContainerCodecPrototype(augClass, arg, schema, factory);
+ static DataContainerCodecPrototype<AugmentationSchemaNode> from(final Class<?> augClass,
+ final AugmentationIdentifier arg, final AugmentationSchemaNode schema, final CodecContextFactory factory) {
+ return new DataContainerCodecPrototype<>(augClass, arg, schema, factory);
}
- static DataContainerCodecPrototype<NotificationDefinition> from(final Class<?> augClass, final NotificationDefinition schema, final CodecContextFactory factory) {
+ static DataContainerCodecPrototype<NotificationDefinition> from(final Class<?> augClass,
+ final NotificationDefinition schema, final CodecContextFactory factory) {
final PathArgument arg = NodeIdentifier.create(schema.getQName());
- return new DataContainerCodecPrototype<NotificationDefinition>(augClass,arg, schema, factory);
+ return new DataContainerCodecPrototype<>(augClass,arg, schema, factory);
}
- protected T getSchema() {
+ T getSchema() {
return schema;
}
- protected QNameModule getNamespace() {
+ ChildAddressabilitySummary getChildAddressabilitySummary() {
+ return childAddressabilitySummary;
+ }
+
+ QNameModule getNamespace() {
return namespace;
}
- protected CodecContextFactory getFactory() {
+ CodecContextFactory getFactory() {
return factory;
}
- protected Class<?> getBindingClass() {
- return bindingClass;
+ Class<?> getBindingClass() {
+ return bindingArg.getType();
}
- protected InstanceIdentifier.Item<?> getBindingArg() {
+ Item<?> getBindingArg() {
return bindingArg;
}
- protected YangInstanceIdentifier.PathArgument getYangArg() {
+ PathArgument getYangArg() {
return yangArg;
}
@Override
- public DataContainerCodecContext<?,T> get() {
- DataContainerCodecContext<?,T> tmp = instance;
- if (tmp == null) {
- synchronized (this) {
- tmp = instance;
- if (tmp == null) {
- tmp = createInstance();
- instance = tmp;
- }
- }
- }
+ public DataContainerCodecContext<?, T> get() {
+ final DataContainerCodecContext<?, T> existing = (DataContainerCodecContext<?, T>) INSTANCE.getAcquire(this);
+ return existing != null ? existing : loadInstance();
+ }
- return tmp;
+ private @NonNull DataContainerCodecContext<?, T> loadInstance() {
+ final var tmp = createInstance();
+ final var witness = (DataContainerCodecContext<?, T>) INSTANCE.compareAndExchangeRelease(this, null, tmp);
+ return witness == null ? tmp : witness;
}
- @GuardedBy("this")
@SuppressWarnings({ "rawtypes", "unchecked" })
- private DataContainerCodecContext<?,T> createInstance() {
+ // This method must allow concurrent loading, i.e. nothing in it may have effects outside of the loaded object
+ private @NonNull DataContainerCodecContext<?, T> createInstance() {
// FIXME: make protected abstract
- if (schema instanceof ContainerSchemaNode) {
+ if (schema instanceof ContainerLike) {
return new ContainerNodeCodecContext(this);
} else if (schema instanceof ListSchemaNode) {
- if (Identifiable.class.isAssignableFrom(getBindingClass())) {
- return new KeyedListNodeCodecContext(this);
- } else {
- return new ListNodeCodecContext(this);
- }
+ return Identifiable.class.isAssignableFrom(getBindingClass())
+ ? KeyedListNodeCodecContext.create((DataContainerCodecPrototype<ListSchemaNode>) this)
+ : new ListNodeCodecContext(this);
} else if (schema instanceof ChoiceSchemaNode) {
return new ChoiceNodeCodecContext(this);
- } else if (schema instanceof AugmentationSchema) {
+ } else if (schema instanceof AugmentationSchemaNode) {
return new AugmentationNodeContext(this);
- } else if (schema instanceof ChoiceCaseNode) {
+ } else if (schema instanceof CaseSchemaNode) {
return new CaseNodeCodecContext(this);
}
- throw new IllegalArgumentException("Unsupported type " + bindingClass + " " + schema);
+ throw new IllegalArgumentException("Unsupported type " + getBindingClass() + " " + schema);
}
+ // FIXME: eliminate with above createInstance() item
boolean isChoice() {
return schema instanceof ChoiceSchemaNode;
}
Code Review / mdsal.git / blobdiff