2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.mdsal.binding.dom.codec.impl;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static com.google.common.base.Verify.verify;
12 import static com.google.common.base.Verify.verifyNotNull;
14 import com.google.common.base.Throwables;
15 import com.google.common.collect.ImmutableList;
16 import com.google.common.collect.ImmutableMap;
17 import com.google.common.collect.ImmutableSortedMap;
18 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
19 import java.lang.invoke.MethodHandle;
20 import java.lang.invoke.MethodHandles;
21 import java.lang.invoke.MethodType;
22 import java.lang.reflect.InvocationHandler;
23 import java.lang.reflect.Method;
24 import java.lang.reflect.Proxy;
25 import java.util.Collection;
26 import java.util.Comparator;
27 import java.util.HashMap;
28 import java.util.List;
30 import java.util.Map.Entry;
31 import java.util.Optional;
32 import java.util.SortedMap;
33 import java.util.TreeMap;
34 import java.util.concurrent.ConcurrentHashMap;
35 import java.util.concurrent.ConcurrentMap;
36 import java.util.function.Function;
37 import org.eclipse.jdt.annotation.NonNull;
38 import org.eclipse.jdt.annotation.Nullable;
39 import org.opendaylight.mdsal.binding.generator.api.ClassLoadingStrategy;
40 import org.opendaylight.mdsal.binding.model.api.JavaTypeName;
41 import org.opendaylight.mdsal.binding.model.api.Type;
42 import org.opendaylight.mdsal.binding.spec.reflect.BindingReflections;
43 import org.opendaylight.yangtools.util.ClassLoaderUtils;
44 import org.opendaylight.yangtools.yang.binding.Augmentable;
45 import org.opendaylight.yangtools.yang.binding.Augmentation;
46 import org.opendaylight.yangtools.yang.binding.AugmentationHolder;
47 import org.opendaylight.yangtools.yang.binding.DataObject;
48 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
49 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.Item;
50 import org.opendaylight.yangtools.yang.common.QName;
51 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
52 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
53 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
54 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
55 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
56 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
57 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
58 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
59 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
60 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
61 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
62 import org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus;
63 import org.opendaylight.yangtools.yang.model.util.SchemaNodeUtils;
64 import org.slf4j.Logger;
65 import org.slf4j.LoggerFactory;
67 abstract class DataObjectCodecContext<D extends DataObject, T extends DataNodeContainer & WithStatus>
68 extends DataContainerCodecContext<D, T> {
69 private static final Logger LOG = LoggerFactory.getLogger(DataObjectCodecContext.class);
70 private static final MethodType CONSTRUCTOR_TYPE = MethodType.methodType(void.class, InvocationHandler.class);
71 private static final MethodType DATAOBJECT_TYPE = MethodType.methodType(DataObject.class, InvocationHandler.class);
72 private static final Comparator<Method> METHOD_BY_ALPHABET = Comparator.comparing(Method::getName);
74 private final ImmutableMap<String, LeafNodeCodecContext<?>> leafChild;
75 private final ImmutableMap<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYang;
76 private final ImmutableSortedMap<Method, NodeContextSupplier> byMethod;
77 private final ImmutableMap<Method, NodeContextSupplier> nonnullMethods;
78 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byStreamClass;
79 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClass;
80 private final ImmutableMap<AugmentationIdentifier, Type> possibleAugmentations;
81 private final MethodHandle proxyConstructor;
83 private final ConcurrentMap<YangInstanceIdentifier.PathArgument, DataContainerCodecPrototype<?>> byYangAugmented =
84 new ConcurrentHashMap<>();
85 private final ConcurrentMap<Class<?>, DataContainerCodecPrototype<?>> byStreamAugmented = new ConcurrentHashMap<>();
87 DataObjectCodecContext(final DataContainerCodecPrototype<T> prototype) {
90 final Class<D> bindingClass = getBindingClass();
91 this.leafChild = factory().getLeafNodes(bindingClass, getSchema());
93 final Map<Class<?>, Method> clsToMethod = BindingReflections.getChildrenClassToMethod(bindingClass);
95 final Map<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYangBuilder = new HashMap<>();
96 final SortedMap<Method, NodeContextSupplier> byMethodBuilder = new TreeMap<>(METHOD_BY_ALPHABET);
97 final Map<Class<?>, DataContainerCodecPrototype<?>> byStreamClassBuilder = new HashMap<>();
98 final Map<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClassBuilder = new HashMap<>();
100 // Adds leaves to mapping
101 for (final LeafNodeCodecContext<?> leaf : leafChild.values()) {
102 byMethodBuilder.put(leaf.getGetter(), leaf);
103 byYangBuilder.put(leaf.getDomPathArgument(), leaf);
106 for (final Entry<Class<?>, Method> childDataObj : clsToMethod.entrySet()) {
107 final Method method = childDataObj.getValue();
108 verify(!method.isDefault(), "Unexpected default method %s in %s", method, bindingClass);
109 final DataContainerCodecPrototype<?> childProto = loadChildPrototype(childDataObj.getKey());
110 byMethodBuilder.put(method, childProto);
111 byStreamClassBuilder.put(childProto.getBindingClass(), childProto);
112 byYangBuilder.put(childProto.getYangArg(), childProto);
113 if (childProto.isChoice()) {
114 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) childProto.get();
115 for (final Class<?> cazeChild : choice.getCaseChildrenClasses()) {
116 byBindingArgClassBuilder.put(cazeChild, childProto);
120 this.byMethod = ImmutableSortedMap.copyOfSorted(byMethodBuilder);
121 this.byYang = ImmutableMap.copyOf(byYangBuilder);
122 this.byStreamClass = ImmutableMap.copyOf(byStreamClassBuilder);
123 byBindingArgClassBuilder.putAll(byStreamClass);
124 this.byBindingArgClass = ImmutableMap.copyOf(byBindingArgClassBuilder);
126 final Map<Class<?>, Method> clsToNonnull = BindingReflections.getChildrenClassToNonnullMethod(bindingClass);
127 final Map<Method, NodeContextSupplier> nonnullMethodsBuilder = new HashMap<>();
128 for (final Entry<Class<?>, Method> entry : clsToNonnull.entrySet()) {
129 final Method method = entry.getValue();
130 if (!method.isDefault()) {
131 LOG.warn("Ignoring non-default method {} in {}", method, bindingClass);
134 final DataContainerCodecPrototype<?> supplier = byStreamClass.get(entry.getKey());
135 if (supplier != null) {
136 nonnullMethodsBuilder.put(method, supplier);
138 LOG.warn("Failed to look up data handler for method {}", method);
142 nonnullMethods = ImmutableMap.copyOf(nonnullMethodsBuilder);
144 if (Augmentable.class.isAssignableFrom(bindingClass)) {
145 this.possibleAugmentations = factory().getRuntimeContext().getAvailableAugmentationTypes(getSchema());
147 this.possibleAugmentations = ImmutableMap.of();
149 reloadAllAugmentations();
151 final Class<?> proxyClass = Proxy.getProxyClass(bindingClass.getClassLoader(), bindingClass,
152 AugmentationHolder.class);
154 proxyConstructor = MethodHandles.publicLookup().findConstructor(proxyClass, CONSTRUCTOR_TYPE)
155 .asType(DATAOBJECT_TYPE);
156 } catch (NoSuchMethodException | IllegalAccessException e) {
157 throw new IllegalStateException("Failed to find contructor for class " + proxyClass, e);
161 @SuppressFBWarnings("RV_RETURN_VALUE_OF_PUTIFABSENT_IGNORED")
162 private void reloadAllAugmentations() {
163 for (final Type augment : possibleAugmentations.values()) {
164 final DataContainerCodecPrototype<?> augProto = getAugmentationPrototype(augment);
165 if (augProto != null) {
166 byYangAugmented.putIfAbsent(augProto.getYangArg(), augProto);
167 byStreamAugmented.putIfAbsent(augProto.getBindingClass(), augProto);
172 @SuppressWarnings("unchecked")
174 public <C extends DataObject> DataContainerCodecContext<C, ?> streamChild(final Class<C> childClass) {
175 final DataContainerCodecPrototype<?> childProto = streamChildPrototype(childClass);
176 return (DataContainerCodecContext<C, ?>) childNonNull(childProto, childClass, " Child %s is not valid child.",
180 private DataContainerCodecPrototype<?> streamChildPrototype(final Class<?> childClass) {
181 final DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
182 if (childProto != null) {
185 if (Augmentation.class.isAssignableFrom(childClass)) {
186 return augmentationByClass(childClass);
191 @SuppressWarnings("unchecked")
193 public <C extends DataObject> Optional<DataContainerCodecContext<C, ?>> possibleStreamChild(
194 final Class<C> childClass) {
195 final DataContainerCodecPrototype<?> childProto = streamChildPrototype(childClass);
196 if (childProto != null) {
197 return Optional.of((DataContainerCodecContext<C, ?>) childProto.get());
199 return Optional.empty();
203 public DataContainerCodecContext<?,?> bindingPathArgumentChild(final InstanceIdentifier.PathArgument arg,
204 final List<YangInstanceIdentifier.PathArgument> builder) {
206 final Class<? extends DataObject> argType = arg.getType();
207 DataContainerCodecPrototype<?> ctxProto = byBindingArgClass.get(argType);
208 if (ctxProto == null && Augmentation.class.isAssignableFrom(argType)) {
209 ctxProto = augmentationByClass(argType);
211 final DataContainerCodecContext<?, ?> context =
212 childNonNull(ctxProto, argType, "Class %s is not valid child of %s", argType, getBindingClass()).get();
213 if (context instanceof ChoiceNodeCodecContext) {
214 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) context;
215 choice.addYangPathArgument(arg, builder);
217 final Optional<? extends Class<? extends DataObject>> caseType = arg.getCaseType();
218 final Class<? extends DataObject> type = arg.getType();
219 final DataContainerCodecContext<?, ?> caze;
220 if (caseType.isPresent()) {
221 // Non-ambiguous addressing this should not pose any problems
222 caze = choice.streamChild(caseType.get());
224 caze = choice.getCaseByChildClass(type);
227 caze.addYangPathArgument(arg, builder);
228 return caze.bindingPathArgumentChild(arg, builder);
230 context.addYangPathArgument(arg, builder);
234 @SuppressWarnings("unchecked")
236 public NodeCodecContext<D> yangPathArgumentChild(final YangInstanceIdentifier.PathArgument arg) {
237 final NodeContextSupplier childSupplier;
238 if (arg instanceof NodeIdentifierWithPredicates) {
239 childSupplier = byYang.get(new NodeIdentifier(arg.getNodeType()));
240 } else if (arg instanceof AugmentationIdentifier) {
241 childSupplier = yangAugmentationChild((AugmentationIdentifier) arg);
243 childSupplier = byYang.get(arg);
246 return (NodeCodecContext<D>) childNonNull(childSupplier, arg,
247 "Argument %s is not valid child of %s", arg, getSchema()).get();
250 protected final LeafNodeCodecContext<?> getLeafChild(final String name) {
251 final LeafNodeCodecContext<?> value = leafChild.get(name);
252 return IncorrectNestingException.checkNonNull(value, "Leaf %s is not valid for %s", name, getBindingClass());
255 private DataContainerCodecPrototype<?> loadChildPrototype(final Class<?> childClass) {
256 final DataSchemaNode origDef = factory().getRuntimeContext().getSchemaDefinition(childClass);
257 // Direct instantiation or use in same module in which grouping
259 DataSchemaNode sameName;
261 sameName = getSchema().getDataChildByName(origDef.getQName());
262 } catch (final IllegalArgumentException e) {
265 final DataSchemaNode childSchema;
266 if (sameName != null) {
267 // Exactly same schema node
268 if (origDef.equals(sameName)) {
269 childSchema = sameName;
270 // We check if instantiated node was added via uses
271 // statement and is instantiation of same grouping
272 } else if (origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(sameName))) {
273 childSchema = sameName;
275 // Node has same name, but clearly is different
279 // We are looking for instantiation via uses in other module
280 final QName instantiedName = origDef.getQName().withModule(namespace());
281 final DataSchemaNode potential = getSchema().getDataChildByName(instantiedName);
282 // We check if it is really instantiated from same
283 // definition as class was derived
284 if (potential != null && origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(potential))) {
285 childSchema = potential;
290 final DataSchemaNode nonNullChild =
291 childNonNull(childSchema, childClass, "Node %s does not have child named %s", getSchema(), childClass);
292 return DataContainerCodecPrototype.from(createBindingArg(childClass, nonNullChild), nonNullChild, factory());
295 @SuppressWarnings("unchecked")
296 Item<?> createBindingArg(final Class<?> childClass, final DataSchemaNode childSchema) {
297 return Item.of((Class<? extends DataObject>) childClass);
300 private DataContainerCodecPrototype<?> yangAugmentationChild(final AugmentationIdentifier arg) {
301 final DataContainerCodecPrototype<?> firstTry = byYangAugmented.get(arg);
302 if (firstTry != null) {
305 if (possibleAugmentations.containsKey(arg)) {
306 reloadAllAugmentations();
307 return byYangAugmented.get(arg);
312 private @Nullable DataContainerCodecPrototype<?> augmentationByClass(final @NonNull Class<?> childClass) {
313 DataContainerCodecPrototype<?> lookup = augmentationByClassOrEquivalentClass(childClass);
314 if (lookup != null || !isPotentialAugmentation(childClass)) {
318 // Attempt to reload all augmentations using TCCL and lookup again
319 reloadAllAugmentations();
320 lookup = augmentationByClassOrEquivalentClass(childClass);
321 if (lookup != null) {
325 // Still no result, this can be caused by TCCL not being set up properly -- try the class's ClassLoader
327 final ClassLoader loader = childClass.getClassLoader();
328 if (loader == null) {
332 LOG.debug("Class {} not loaded via TCCL, attempting to recover", childClass);
333 ClassLoaderUtils.runWithClassLoader(loader, this::reloadAllAugmentations);
334 return augmentationByClassOrEquivalentClass(childClass);
337 private boolean isPotentialAugmentation(final Class<?> childClass) {
338 final JavaTypeName name = JavaTypeName.create(childClass);
339 for (Type type : possibleAugmentations.values()) {
340 if (name.equals(type.getIdentifier())) {
347 private @Nullable DataContainerCodecPrototype<?> augmentationByClassOrEquivalentClass(
348 final @NonNull Class<?> childClass) {
349 final DataContainerCodecPrototype<?> childProto = byStreamAugmented.get(childClass);
350 if (childProto != null) {
355 * It is potentially mismatched valid augmentation - we look up equivalent augmentation
356 * using reflection and walk all stream child and compare augmenations classes if they are
359 * FIXME: Cache mapping of mismatched augmentation to real one, to speed up lookup.
361 @SuppressWarnings("rawtypes")
362 final Class<?> augTarget = BindingReflections.findAugmentationTarget((Class) childClass);
363 if (getBindingClass().equals(augTarget)) {
364 for (final DataContainerCodecPrototype<?> realChild : byStreamAugmented.values()) {
365 if (Augmentation.class.isAssignableFrom(realChild.getBindingClass())
366 && BindingReflections.isSubstitutionFor(childClass, realChild.getBindingClass())) {
374 private DataContainerCodecPrototype<?> getAugmentationPrototype(final Type value) {
375 final ClassLoadingStrategy loader = factory().getRuntimeContext().getStrategy();
376 @SuppressWarnings("rawtypes")
377 final Class augClass;
379 augClass = loader.loadClass(value);
380 } catch (final ClassNotFoundException e) {
381 LOG.debug("Failed to load augmentation prototype for {}. Will be retried when needed.", value, e);
385 @SuppressWarnings("unchecked")
386 final Entry<AugmentationIdentifier, AugmentationSchemaNode> augSchema = factory().getRuntimeContext()
387 .getResolvedAugmentationSchema(getSchema(), augClass);
388 return DataContainerCodecPrototype.from(augClass, augSchema.getKey(), augSchema.getValue(), factory());
391 Object getBindingChildValue(final Method method, final NormalizedNodeContainer<?, ?, ?> domData) {
392 return method.isDefault() ? getBindingChildValue(nonnullMethods, method, domData, dummy -> ImmutableList.of())
393 : getBindingChildValue(byMethod, method, domData, NodeCodecContext::defaultObject);
396 @SuppressWarnings("rawtypes")
397 private static Object getBindingChildValue(final ImmutableMap<Method, NodeContextSupplier> map, final Method method,
398 final NormalizedNodeContainer domData, final Function<NodeCodecContext<?>, Object> getDefaultObject) {
399 final NodeCodecContext<?> childContext = verifyNotNull(map.get(method),
400 "Cannot find data handler for method %s", method).get();
402 @SuppressWarnings("unchecked")
403 final Optional<NormalizedNode<?, ?>> domChild = domData.getChild(childContext.getDomPathArgument());
405 // We do not want to use Optional.map() here because we do not want to invoke defaultObject() when we have
406 // normal value because defaultObject() may end up throwing an exception intentionally.
407 return domChild.isPresent() ? childContext.deserializeObject(domChild.get())
408 : getDefaultObject.apply(childContext);
411 @SuppressWarnings("checkstyle:illegalCatch")
412 protected final D createBindingProxy(final NormalizedNodeContainer<?, ?, ?> node) {
414 return (D) proxyConstructor.invokeExact((InvocationHandler)new LazyDataObject<>(this, node));
415 } catch (final Throwable e) {
416 Throwables.throwIfUnchecked(e);
417 throw new RuntimeException(e);
421 @SuppressWarnings("unchecked")
422 Map<Class<? extends Augmentation<?>>, Augmentation<?>> getAllAugmentationsFrom(
423 final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data) {
425 @SuppressWarnings("rawtypes")
426 final Map map = new HashMap<>();
428 for (final NormalizedNode<?, ?> childValue : data.getValue()) {
429 if (childValue instanceof AugmentationNode) {
430 final AugmentationNode augDomNode = (AugmentationNode) childValue;
431 final DataContainerCodecPrototype<?> codecProto = yangAugmentationChild(augDomNode.getIdentifier());
432 if (codecProto != null) {
433 final DataContainerCodecContext<?, ?> codec = codecProto.get();
434 map.put(codec.getBindingClass(), codec.deserializeObject(augDomNode));
438 for (final DataContainerCodecPrototype<?> value : byStreamAugmented.values()) {
439 final Optional<NormalizedNode<?, ?>> augData = data.getChild(value.getYangArg());
440 if (augData.isPresent()) {
441 map.put(value.getBindingClass(), value.get().deserializeObject(augData.get()));
447 Collection<Method> getHashCodeAndEqualsMethods() {
448 return byMethod.keySet();
452 public InstanceIdentifier.PathArgument deserializePathArgument(final YangInstanceIdentifier.PathArgument arg) {
453 checkArgument(getDomPathArgument().equals(arg));
458 public YangInstanceIdentifier.PathArgument serializePathArgument(final InstanceIdentifier.PathArgument arg) {
459 checkArgument(bindingArg().equals(arg));
460 return getDomPathArgument();