*/
package org.opendaylight.mdsal.binding.dom.codec.impl;
-import static com.google.common.base.Preconditions.checkState;
+import static com.google.common.base.Verify.verifyNotNull;
+import static net.bytebuddy.implementation.bytecode.member.MethodVariableAccess.loadThis;
+import static org.opendaylight.mdsal.binding.dom.codec.impl.ByteBuddyUtils.getField;
+import static org.opendaylight.mdsal.binding.dom.codec.impl.ByteBuddyUtils.putField;
+import com.google.common.base.Throwables;
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+import java.time.Instant;
+import net.bytebuddy.ByteBuddy;
+import net.bytebuddy.description.method.MethodDescription;
+import net.bytebuddy.description.method.MethodDescription.InGenericShape;
+import net.bytebuddy.description.type.TypeDefinition;
+import net.bytebuddy.description.type.TypeDescription;
+import net.bytebuddy.description.type.TypeDescription.Generic;
+import net.bytebuddy.dynamic.scaffold.InstrumentedType;
+import net.bytebuddy.dynamic.scaffold.subclass.ConstructorStrategy;
+import net.bytebuddy.implementation.Implementation;
+import net.bytebuddy.implementation.bytecode.ByteCodeAppender;
+import net.bytebuddy.implementation.bytecode.StackManipulation;
+import net.bytebuddy.implementation.bytecode.member.MethodInvocation;
+import net.bytebuddy.implementation.bytecode.member.MethodReturn;
+import net.bytebuddy.implementation.bytecode.member.MethodVariableAccess;
+import net.bytebuddy.jar.asm.Opcodes;
+import net.bytebuddy.matcher.ElementMatchers;
+import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.mdsal.binding.loader.BindingClassLoader.GeneratorResult;
+import org.opendaylight.mdsal.binding.runtime.api.NotificationRuntimeType;
+import org.opendaylight.yangtools.yang.binding.BaseNotification;
import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.Notification;
+import org.opendaylight.yangtools.yang.binding.EventInstantAware;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
-final class NotificationCodecContext<D extends DataObject & Notification>
- extends DataObjectCodecContext<D, NotificationDefinition> {
+final class NotificationCodecContext<D extends DataObject & BaseNotification>
+ extends DataObjectCodecContext<D, NotificationRuntimeType> {
+ private static final Generic EVENT_INSTANT_AWARE = TypeDefinition.Sort.describe(EventInstantAware.class);
- NotificationCodecContext(final Class<?> key, final NotificationDefinition schema,
+ private static final String EVENT_INSTANT_NAME;
+ private static final Generic EVENT_INSTANT_RETTYPE;
+
+ static {
+ final MethodDescription eventInstance = EVENT_INSTANT_AWARE.getDeclaredMethods().getOnly();
+ EVENT_INSTANT_NAME = eventInstance.getName();
+ EVENT_INSTANT_RETTYPE = eventInstance.getReturnType();
+ }
+
+ private static final Generic BB_DOCC = TypeDefinition.Sort.describe(DataObjectCodecContext.class);
+ private static final Generic BB_DCN = TypeDefinition.Sort.describe(DataContainerNode.class);
+ private static final Generic BB_I = TypeDefinition.Sort.describe(Instant.class);
+
+ private static final MethodType CONSTRUCTOR_TYPE = MethodType.methodType(void.class, DataObjectCodecContext.class,
+ DataContainerNode.class, Instant.class);
+ private static final MethodType NOTIFICATION_TYPE = MethodType.methodType(BaseNotification.class,
+ NotificationCodecContext.class, ContainerNode.class, Instant.class);
+ private static final String INSTANT_FIELD = "instant";
+
+ private final MethodHandle eventProxy;
+
+ NotificationCodecContext(final Class<?> notificationClass, final NotificationRuntimeType type,
final CodecContextFactory factory) {
- super(DataContainerCodecPrototype.from(key, schema, factory));
+ super(new Prototype<>(notificationClass, type, factory));
+ final var bindingClass = getBindingClass();
+
+ final var eventAwareClass = CodecPackage.EVENT_AWARE.generateClass(prototype().contextFactory().getLoader(),
+ bindingClass, (loader, fqcn, bindingInterface) -> {
+ final var codecImpl = CodecPackage.CODEC.getGeneratedClass(loader, bindingClass);
+
+ return GeneratorResult.of(new ByteBuddy()
+ .subclass(codecImpl, ConstructorStrategy.Default.NO_CONSTRUCTORS)
+ .implement(EVENT_INSTANT_AWARE)
+ .name(fqcn)
+ .defineField(INSTANT_FIELD, BB_I, Opcodes.ACC_PRIVATE | Opcodes.ACC_FINAL | Opcodes.ACC_SYNTHETIC)
+ .defineConstructor(Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC)
+ .withParameters(BB_DOCC, BB_DCN, BB_I)
+ .intercept(ConstructorImplementation.INSTANCE)
+ .defineMethod(EVENT_INSTANT_NAME, EVENT_INSTANT_RETTYPE, Opcodes.ACC_PUBLIC | Opcodes.ACC_SYNTHETIC)
+ .intercept(EventInstantImplementation.INSTANCE)
+ .make());
+ });
+
+ final MethodHandle ctor;
+ try {
+ ctor = MethodHandles.publicLookup().findConstructor(eventAwareClass, CONSTRUCTOR_TYPE);
+ } catch (IllegalAccessException | NoSuchMethodException e) {
+ throw new LinkageError("Failed to acquire constructor", e);
+ }
+ eventProxy = ctor.asType(NOTIFICATION_TYPE);
}
@Override
- public D deserialize(final NormalizedNode<?, ?> data) {
- checkState(data instanceof ContainerNode);
- return createBindingProxy((ContainerNode) data);
+ public D deserialize(final NormalizedNode data) {
+ return createBindingProxy(checkDataArgument(ContainerNode.class, data));
}
- @Override
- protected Object deserializeObject(final NormalizedNode<?, ?> normalizedNode) {
- return deserialize(normalizedNode);
+ @SuppressWarnings("checkstyle:illegalCatch")
+ @NonNull BaseNotification deserialize(final @NonNull ContainerNode data, final @NonNull Instant eventInstant) {
+ final BaseNotification ret;
+ try {
+ ret = (BaseNotification) eventProxy.invokeExact(this, data, eventInstant);
+ } catch (final Throwable e) {
+ Throwables.throwIfUnchecked(e);
+ throw new LinkageError("Failed to instantiate notification", e);
+ }
+ return verifyNotNull(ret);
+ }
+
+ /**
+ * Prototype for a {@code notification}. This class only exists because DataContainerCodecContext requires a
+ * prototype.
+ */
+ static final class Prototype<D extends DataObject & BaseNotification>
+ extends DataObjectCodecPrototype<NotificationRuntimeType> {
+ private Prototype(final Class<?> cls, final NotificationRuntimeType type, final CodecContextFactory factory) {
+ super(cls, NodeIdentifier.create(type.statement().argument()), type, factory);
+ }
+
+ @Override
+ NotificationCodecContext<?> createInstance() {
+ throw new UnsupportedOperationException("Should never be invoked");
+ }
+ }
+
+ private enum ConstructorImplementation implements Implementation {
+ INSTANCE;
+
+ private static final StackManipulation LOAD_INSTANT_ARG = MethodVariableAccess.REFERENCE.loadFrom(3);
+ private static final StackManipulation LOAD_CTOR_ARGS;
+
+ static {
+ try {
+ LOAD_CTOR_ARGS = MethodVariableAccess.allArgumentsOf(new MethodDescription.ForLoadedConstructor(
+ AugmentableCodecDataObject.class.getDeclaredConstructor(AbstractDataObjectCodecContext.class,
+ DataContainerNode.class)));
+ } catch (NoSuchMethodException e) {
+ throw new ExceptionInInitializerError(e);
+ }
+ }
+
+ @Override
+ public InstrumentedType prepare(final InstrumentedType instrumentedType) {
+ return instrumentedType;
+ }
+
+ @Override
+ public ByteCodeAppender appender(final Target implementationTarget) {
+ final TypeDescription instrumentedType = implementationTarget.getInstrumentedType();
+ final InGenericShape superCtor = verifyNotNull(instrumentedType.getSuperClass()).getDeclaredMethods()
+ .filter(ElementMatchers.isConstructor()).getOnly();
+
+ return new ByteCodeAppender.Simple(
+ loadThis(),
+ LOAD_CTOR_ARGS,
+ MethodInvocation.invoke(superCtor),
+ loadThis(),
+ LOAD_INSTANT_ARG,
+ putField(instrumentedType, INSTANT_FIELD),
+ MethodReturn.VOID);
+ }
+ }
+
+ private enum EventInstantImplementation implements Implementation {
+ INSTANCE;
+
+ @Override
+ public InstrumentedType prepare(final InstrumentedType instrumentedType) {
+ return instrumentedType;
+ }
+
+ @Override
+ public ByteCodeAppender appender(final Target implementationTarget) {
+ return new ByteCodeAppender.Simple(
+ loadThis(),
+ getField(implementationTarget.getInstrumentedType(), INSTANT_FIELD),
+ MethodReturn.REFERENCE);
+ }
}
-}
\ No newline at end of file
+}
Code Review / mdsal.git / blobdiff