+++ /dev/null
-/*
- * Copyright (c) 2014 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.controller.md.sal.binding.impl;
-
-import com.google.common.base.Function;
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
-import com.google.common.cache.CacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.LoadingCache;
-import com.google.common.collect.ImmutableBiMap;
-import java.lang.reflect.Method;
-import java.net.URI;
-import java.util.AbstractMap.SimpleEntry;
-import java.util.Collection;
-import java.util.Date;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-import java.util.concurrent.TimeUnit;
-import javax.annotation.Nonnull;
-import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
-import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
-import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizer;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingCodecTree;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingCodecTreeFactory;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingCodecTreeNode;
-import org.opendaylight.yangtools.binding.data.codec.api.BindingNormalizedNodeSerializer;
-import org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry;
-import org.opendaylight.yangtools.binding.data.codec.impl.MissingSchemaException;
-import org.opendaylight.yangtools.sal.binding.generator.api.ClassLoadingStrategy;
-import org.opendaylight.yangtools.sal.binding.generator.util.BindingRuntimeContext;
-import org.opendaylight.yangtools.yang.binding.BindingMapping;
-import org.opendaylight.yangtools.yang.binding.DataContainer;
-import org.opendaylight.yangtools.yang.binding.DataObject;
-import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.binding.Notification;
-import org.opendaylight.yangtools.yang.binding.RpcService;
-import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
-import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
-import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
-import org.opendaylight.yangtools.yang.model.api.Module;
-import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
-import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
-import org.opendaylight.yangtools.yang.model.api.SchemaPath;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public final class BindingToNormalizedNodeCodec implements BindingCodecTreeFactory, BindingNormalizedNodeSerializer, SchemaContextListener, AutoCloseable {
-
- private static final long WAIT_DURATION_SEC = 5;
- private static final Logger LOG = LoggerFactory.getLogger(BindingToNormalizedNodeCodec.class);
-
- private final BindingNormalizedNodeCodecRegistry codecRegistry;
-
- private final ClassLoadingStrategy classLoadingStrategy;
- private final FutureSchema futureSchema;
- private final LoadingCache<InstanceIdentifier<?>, YangInstanceIdentifier> iiCache = CacheBuilder.newBuilder()
- .softValues().build(new CacheLoader<InstanceIdentifier<?>, YangInstanceIdentifier>() {
-
- @Override
- public YangInstanceIdentifier load(final InstanceIdentifier<?> key) throws Exception {
- return toYangInstanceIdentifierBlocking(key);
- }
-
- });
-
- private DataNormalizer legacyToNormalized;
-
- public BindingToNormalizedNodeCodec(final ClassLoadingStrategy classLoadingStrategy,
- final BindingNormalizedNodeCodecRegistry codecRegistry) {
- this(classLoadingStrategy,codecRegistry,false);
-
- }
-
- public BindingToNormalizedNodeCodec(final ClassLoadingStrategy classLoadingStrategy,
- final BindingNormalizedNodeCodecRegistry codecRegistry,final boolean waitForSchema) {
- this.classLoadingStrategy = Preconditions.checkNotNull(classLoadingStrategy,"classLoadingStrategy");
- this.codecRegistry = Preconditions.checkNotNull(codecRegistry,"codecRegistry");
- this.futureSchema = new FutureSchema(WAIT_DURATION_SEC, TimeUnit.SECONDS, waitForSchema);
- }
-
- YangInstanceIdentifier toYangInstanceIdentifierBlocking(final InstanceIdentifier<? extends DataObject> binding) {
- try {
- return codecRegistry.toYangInstanceIdentifier(binding);
- } catch (final MissingSchemaException e) {
- waitForSchema(decompose(binding),e);
- return codecRegistry.toYangInstanceIdentifier(binding);
- }
- }
-
- /**
- * Translates supplied Binding Instance Identifier into NormalizedNode
- * instance identifier.
- *
- * @param binding
- * Binding Instance Identifier
- * @return DOM Instance Identifier
- * @throws IllegalArgumentException
- * If supplied Instance Identifier is not valid.
- */
- public YangInstanceIdentifier toNormalized(final InstanceIdentifier<? extends DataObject> binding) {
- return codecRegistry.toYangInstanceIdentifier(binding);
- }
-
- @Override
- public YangInstanceIdentifier toYangInstanceIdentifier(final InstanceIdentifier<?> binding) {
- return codecRegistry.toYangInstanceIdentifier(binding);
- }
-
-
- YangInstanceIdentifier toYangInstanceIdentifierCached(final InstanceIdentifier<?> binding) {
- return iiCache .getUnchecked(binding);
- }
-
- @Override
- public <T extends DataObject> Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
- final InstanceIdentifier<T> path, final T data) {
- return codecRegistry.toNormalizedNode(path, data);
- }
-
- /**
- * Converts Binding Map.Entry to DOM Map.Entry
- *
- * Same as {@link #toNormalizedNode(InstanceIdentifier, DataObject)}.
- *
- * @param binding Map Entry with InstanceIdentifier as key and DataObject as value.
- * @return DOM Map Entry with {@link YangInstanceIdentifier} as key and {@link NormalizedNode}
- * as value.
- */
- @SuppressWarnings({"unchecked", "rawtypes"})
- public Entry<YangInstanceIdentifier, NormalizedNode<?, ?>> toNormalizedNode(
- final Entry<InstanceIdentifier<? extends DataObject>, DataObject> binding) {
- return toNormalizedNode((InstanceIdentifier) binding.getKey(),binding.getValue());
- }
-
- @Override
- public Entry<InstanceIdentifier<?>, DataObject> fromNormalizedNode(final YangInstanceIdentifier path,
- final NormalizedNode<?, ?> data) {
- return codecRegistry.fromNormalizedNode(path, data);
- }
-
- @Override
- public Notification fromNormalizedNodeNotification(final SchemaPath path, final ContainerNode data) {
- return codecRegistry.fromNormalizedNodeNotification(path, data);
- }
-
- @Override
- public DataObject fromNormalizedNodeRpcData(final SchemaPath path, final ContainerNode data) {
- return codecRegistry.fromNormalizedNodeRpcData(path, data);
- }
-
- @Override
- public InstanceIdentifier<?> fromYangInstanceIdentifier(final YangInstanceIdentifier dom) {
- return codecRegistry.fromYangInstanceIdentifier(dom);
- }
-
- @Override
- public ContainerNode toNormalizedNodeNotification(final Notification data) {
- return codecRegistry.toNormalizedNodeNotification(data);
- }
-
- @Override
- public ContainerNode toNormalizedNodeRpcData(final DataContainer data) {
- return codecRegistry.toNormalizedNodeRpcData(data);
- }
-
- /**
- *
- * Returns a Binding-Aware instance identifier from normalized
- * instance-identifier if it is possible to create representation.
- *
- * Returns Optional.absent for cases where target is mixin node except
- * augmentation.
- *
- */
- public Optional<InstanceIdentifier<? extends DataObject>> toBinding(final YangInstanceIdentifier normalized)
- throws DeserializationException {
- try {
- return Optional.<InstanceIdentifier<? extends DataObject>>fromNullable(codecRegistry.fromYangInstanceIdentifier(normalized));
- } catch (final IllegalArgumentException e) {
- return Optional.absent();
- }
- }
-
- public DataNormalizer getDataNormalizer() {
- return legacyToNormalized;
- }
-
- public Optional<Entry<InstanceIdentifier<? extends DataObject>, DataObject>> toBinding(
- @Nonnull final Entry<YangInstanceIdentifier, ? extends NormalizedNode<?, ?>> normalized)
- throws DeserializationException {
- try {
- /*
- * This cast is required, due to generics behaviour in openjdk / oracle javac
- *
- * InstanceIdentifier has definition InstanceIdentifier<T extends DataObject>,
- * this means '?' is always <? extends DataObject>. Eclipse compiler
- * is able to determine this relationship and treats
- * Entry<InstanceIdentifier<?>,DataObject> and Entry<InstanceIdentifier<? extends DataObject,DataObject>
- * as assignable. However openjdk / oracle javac treats this two types
- * as incompatible and issues a compile error.
- *
- * It is safe to loose generic information and cast it to other generic signature.
- *
- */
- @SuppressWarnings("unchecked")
- final Entry<InstanceIdentifier<? extends DataObject>, DataObject> binding = Entry.class.cast(codecRegistry.fromNormalizedNode(normalized.getKey(), normalized.getValue()));
- return Optional.fromNullable(binding);
- } catch (final IllegalArgumentException e) {
- return Optional.absent();
- }
- }
-
- @Override
- public void onGlobalContextUpdated(final SchemaContext schemaContext) {
- legacyToNormalized = new DataNormalizer(schemaContext);
- BindingRuntimeContext runtimeContext = BindingRuntimeContext.create(classLoadingStrategy, schemaContext);
- codecRegistry.onBindingRuntimeContextUpdated(runtimeContext);
- futureSchema.onRuntimeContextUpdated(runtimeContext);
- }
-
- public <T extends DataObject> Function<Optional<NormalizedNode<?, ?>>, Optional<T>> deserializeFunction(final InstanceIdentifier<T> path) {
- return codecRegistry.deserializeFunction(path);
- }
-
- /**
- * Returns an default object according to YANG schema for supplied path.
- *
- * @param path DOM Path
- * @return Node with defaults set on.
- */
- public NormalizedNode<?, ?> getDefaultNodeFor(final YangInstanceIdentifier path) {
- final Iterator<PathArgument> iterator = path.getPathArguments().iterator();
- DataNormalizationOperation<?> currentOp = legacyToNormalized.getRootOperation();
- while (iterator.hasNext()) {
- final PathArgument currentArg = iterator.next();
- try {
- currentOp = currentOp.getChild(currentArg);
- } catch (final DataNormalizationException e) {
- throw new IllegalArgumentException(String.format("Invalid child encountered in path %s", path), e);
- }
- }
- return currentOp.createDefault(path.getLastPathArgument());
- }
-
- public BindingNormalizedNodeCodecRegistry getCodecRegistry() {
- return codecRegistry;
- }
-
- @Override
- public void close() {
- // NOOP Intentionally
- }
-
- public BindingNormalizedNodeCodecRegistry getCodecFactory() {
- return codecRegistry;
- }
-
- // FIXME: This should be probably part of Binding Runtime context
- public ImmutableBiMap<Method, SchemaPath> getRpcMethodToSchemaPath(final Class<? extends RpcService> key) {
- final Module module = getModuleBlocking(key);
- final ImmutableBiMap.Builder<Method, SchemaPath> ret = ImmutableBiMap.<Method, SchemaPath>builder();
- try {
- for (final RpcDefinition rpcDef : module.getRpcs()) {
- final Method method = findRpcMethod(key, rpcDef);
- ret.put(method, rpcDef.getPath());
- }
- } catch (final NoSuchMethodException e) {
- throw new IllegalStateException("Rpc defined in model does not have representation in generated class.", e);
- }
- return ret.build();
- }
-
- protected ImmutableBiMap<Method, RpcDefinition> getRpcMethodToSchema(final Class<? extends RpcService> key) {
- final Module module = getModuleBlocking(key);
- final ImmutableBiMap.Builder<Method, RpcDefinition> ret = ImmutableBiMap.builder();
- try {
- for (final RpcDefinition rpcDef : module.getRpcs()) {
- final Method method = findRpcMethod(key, rpcDef);
- ret.put(method, rpcDef);
- }
- } catch (final NoSuchMethodException e) {
- throw new IllegalStateException("Rpc defined in model does not have representation in generated class.", e);
- }
- return ret.build();
- }
-
- private Module getModuleBlocking(final Class<?> modeledClass) {
- final QNameModule moduleName = BindingReflections.getQNameModule(modeledClass);
- final URI namespace = moduleName.getNamespace();
- final Date revision = moduleName.getRevision();
- Module module = runtimeContext().getSchemaContext().findModuleByNamespaceAndRevision(namespace, revision);
- if(module == null && futureSchema.waitForSchema(namespace,revision)) {
- module = runtimeContext().getSchemaContext().findModuleByNamespaceAndRevision(namespace, revision);
- }
- Preconditions.checkState(module != null, "Schema for %s is not available.", modeledClass);
- return module;
- }
-
- private void waitForSchema(final Collection<Class<?>> binding, final MissingSchemaException e) {
- LOG.warn("Blocking thread to wait for schema convergence updates for {} {}", futureSchema.getDuration(),
- futureSchema.getUnit());
- if(futureSchema.waitForSchema(binding)) {
- return;
- }
-
- throw e;
- }
-
- private Method findRpcMethod(final Class<? extends RpcService> key, final RpcDefinition rpcDef) throws NoSuchMethodException {
- final String methodName = BindingMapping.getMethodName(rpcDef.getQName());
- if(rpcDef.getInput() != null) {
- final Class<?> inputClz = runtimeContext().getClassForSchema(rpcDef.getInput());
- return key.getMethod(methodName, inputClz);
- }
- return key.getMethod(methodName);
- }
-
- private BindingRuntimeContext runtimeContext() {
- return futureSchema.runtimeContext();
- }
-
- @Override
- public BindingCodecTree create(final BindingRuntimeContext context) {
- return codecRegistry.create(context);
- }
-
- @Override
- public BindingCodecTree create(final SchemaContext context, final Class<?>... bindingClasses) {
- return codecRegistry.create(context, bindingClasses);
- }
-
- @Nonnull
- protected Map.Entry<InstanceIdentifier<?>, BindingCodecTreeNode<?>> getSubtreeCodec(
- final YangInstanceIdentifier domIdentifier) {
-
- final BindingCodecTree currentCodecTree = codecRegistry.getCodecContext();
- final InstanceIdentifier<?> bindingPath = codecRegistry.fromYangInstanceIdentifier(domIdentifier);
- Preconditions.checkArgument(bindingPath != null);
- /**
- * If we are able to deserialize YANG instance identifier, getSubtreeCodec must
- * return non-null value.
- */
- final BindingCodecTreeNode<?> codecContext = currentCodecTree.getSubtreeCodec(bindingPath);
- return new SimpleEntry<InstanceIdentifier<?>, BindingCodecTreeNode<?>>(bindingPath, codecContext);
- }
-
- @SuppressWarnings("unchecked")
- public Set<Class<? extends Notification>> getNotificationClasses(final Set<SchemaPath> interested) {
- final Set<Class<? extends Notification>> result = new HashSet<>();
- final Set<NotificationDefinition> knownNotifications = runtimeContext().getSchemaContext().getNotifications();
- for (final NotificationDefinition notification : knownNotifications) {
- if (interested.contains(notification.getPath())) {
- try {
- result.add((Class<? extends Notification>) runtimeContext().getClassForSchema(notification));
- } catch (final IllegalStateException e) {
- // Ignore
- LOG.warn("Class for {} is currently not known.",notification.getPath(),e);
- }
- }
- }
- return result;
- }
-
- private static Collection<Class<?>> decompose(final InstanceIdentifier<?> path) {
- final Set<Class<?>> clazzes = new HashSet<>();
- for(final InstanceIdentifier.PathArgument arg : path.getPathArguments()) {
- clazzes.add(arg.getType());
- }
- return clazzes;
- }
-
-}