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 com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.base.Throwables;
13 import com.google.common.collect.ImmutableMap;
14 import com.google.common.collect.ImmutableMap.Builder;
15 import com.google.common.collect.ImmutableSortedMap;
16 import java.lang.invoke.MethodHandle;
17 import java.lang.invoke.MethodHandles;
18 import java.lang.invoke.MethodType;
19 import java.lang.reflect.InvocationHandler;
20 import java.lang.reflect.Method;
21 import java.lang.reflect.Proxy;
22 import java.util.Collection;
23 import java.util.Comparator;
24 import java.util.HashMap;
25 import java.util.List;
27 import java.util.Map.Entry;
28 import java.util.SortedMap;
29 import java.util.TreeMap;
30 import java.util.concurrent.ConcurrentHashMap;
31 import java.util.concurrent.ConcurrentMap;
32 import javax.annotation.Nonnull;
33 import javax.annotation.Nullable;
34 import org.opendaylight.mdsal.binding.generator.api.ClassLoadingStrategy;
35 import org.opendaylight.mdsal.binding.model.api.Type;
36 import org.opendaylight.yangtools.yang.binding.Augmentable;
37 import org.opendaylight.yangtools.yang.binding.Augmentation;
38 import org.opendaylight.yangtools.yang.binding.AugmentationHolder;
39 import org.opendaylight.yangtools.yang.binding.DataObject;
40 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
41 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
42 import org.opendaylight.yangtools.yang.common.QName;
43 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
44 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
45 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
46 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
47 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
48 import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
49 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
50 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
51 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
52 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
53 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
54 import org.opendaylight.yangtools.yang.model.api.DocumentedNode.WithStatus;
55 import org.opendaylight.yangtools.yang.model.util.SchemaNodeUtils;
56 import org.slf4j.Logger;
57 import org.slf4j.LoggerFactory;
59 abstract class DataObjectCodecContext<D extends DataObject, T extends DataNodeContainer & WithStatus>
60 extends DataContainerCodecContext<D, T> {
61 private static final Logger LOG = LoggerFactory.getLogger(DataObjectCodecContext.class);
62 private static final MethodType CONSTRUCTOR_TYPE = MethodType.methodType(void.class, InvocationHandler.class);
63 private static final MethodType DATAOBJECT_TYPE = MethodType.methodType(DataObject.class, InvocationHandler.class);
64 private static final Comparator<Method> METHOD_BY_ALPHABET = (o1, o2) -> o1.getName().compareTo(o2.getName());
66 private final ImmutableMap<String, LeafNodeCodecContext<?>> leafChild;
67 private final ImmutableMap<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYang;
68 private final ImmutableSortedMap<Method, NodeContextSupplier> byMethod;
69 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byStreamClass;
70 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClass;
71 private final ImmutableMap<AugmentationIdentifier, Type> possibleAugmentations;
72 private final MethodHandle proxyConstructor;
74 private final ConcurrentMap<YangInstanceIdentifier.PathArgument, DataContainerCodecPrototype<?>> byYangAugmented =
75 new ConcurrentHashMap<>();
76 private final ConcurrentMap<Class<?>, DataContainerCodecPrototype<?>> byStreamAugmented = new ConcurrentHashMap<>();
78 private volatile ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> mismatchedAugmented = ImmutableMap.of();
80 DataObjectCodecContext(final DataContainerCodecPrototype<T> prototype) {
83 this.leafChild = factory().getLeafNodes(getBindingClass(), getSchema());
85 final Map<Class<?>, Method> clsToMethod = BindingReflections.getChildrenClassToMethod(getBindingClass());
87 final Map<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYangBuilder = new HashMap<>();
88 final SortedMap<Method, NodeContextSupplier> byMethodBuilder = new TreeMap<>(METHOD_BY_ALPHABET);
89 final Map<Class<?>, DataContainerCodecPrototype<?>> byStreamClassBuilder = new HashMap<>();
90 final Map<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClassBuilder = new HashMap<>();
92 // Adds leaves to mapping
93 for (final LeafNodeCodecContext<?> leaf : leafChild.values()) {
94 byMethodBuilder.put(leaf.getGetter(), leaf);
95 byYangBuilder.put(leaf.getDomPathArgument(), leaf);
98 for (final Entry<Class<?>, Method> childDataObj : clsToMethod.entrySet()) {
99 final DataContainerCodecPrototype<?> childProto = loadChildPrototype(childDataObj.getKey());
100 byMethodBuilder.put(childDataObj.getValue(), childProto);
101 byStreamClassBuilder.put(childProto.getBindingClass(), childProto);
102 byYangBuilder.put(childProto.getYangArg(), childProto);
103 if (childProto.isChoice()) {
104 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) childProto.get();
105 for (final Class<?> cazeChild : choice.getCaseChildrenClasses()) {
106 byBindingArgClassBuilder.put(cazeChild, childProto);
110 this.byMethod = ImmutableSortedMap.copyOfSorted(byMethodBuilder);
111 this.byYang = ImmutableMap.copyOf(byYangBuilder);
112 this.byStreamClass = ImmutableMap.copyOf(byStreamClassBuilder);
113 byBindingArgClassBuilder.putAll(byStreamClass);
114 this.byBindingArgClass = ImmutableMap.copyOf(byBindingArgClassBuilder);
117 if (Augmentable.class.isAssignableFrom(getBindingClass())) {
118 this.possibleAugmentations = factory().getRuntimeContext().getAvailableAugmentationTypes(getSchema());
120 this.possibleAugmentations = ImmutableMap.of();
122 reloadAllAugmentations();
124 final Class<?> proxyClass = Proxy.getProxyClass(getBindingClass().getClassLoader(), getBindingClass(),
125 AugmentationHolder.class);
127 proxyConstructor = MethodHandles.publicLookup().findConstructor(proxyClass, CONSTRUCTOR_TYPE)
128 .asType(DATAOBJECT_TYPE);
129 } catch (NoSuchMethodException | IllegalAccessException e) {
130 throw new IllegalStateException("Failed to find contructor for class " + proxyClass, e);
134 private void reloadAllAugmentations() {
135 for (final Entry<AugmentationIdentifier, Type> augment : possibleAugmentations.entrySet()) {
136 final DataContainerCodecPrototype<?> augProto = getAugmentationPrototype(augment.getValue());
137 if (augProto != null) {
138 byYangAugmented.putIfAbsent(augProto.getYangArg(), augProto);
139 byStreamAugmented.putIfAbsent(augProto.getBindingClass(), augProto);
144 @SuppressWarnings("unchecked")
146 public <C extends DataObject> DataContainerCodecContext<C, ?> streamChild(final Class<C> childClass) {
147 final DataContainerCodecPrototype<?> childProto = streamChildPrototype(childClass);
148 return (DataContainerCodecContext<C, ?>) childNonNull(childProto, childClass, " Child %s is not valid child.",
152 private DataContainerCodecPrototype<?> streamChildPrototype(final Class<?> childClass) {
153 final DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
154 if (childProto != null) {
157 if (Augmentation.class.isAssignableFrom(childClass)) {
158 return augmentationByClass(childClass);
163 @SuppressWarnings("unchecked")
165 public <C extends DataObject> Optional<DataContainerCodecContext<C, ?>> possibleStreamChild(
166 final Class<C> childClass) {
167 final DataContainerCodecPrototype<?> childProto = streamChildPrototype(childClass);
168 if (childProto != null) {
169 return Optional.of((DataContainerCodecContext<C, ?>) childProto.get());
171 return Optional.absent();
175 public DataContainerCodecContext<?,?> bindingPathArgumentChild(final InstanceIdentifier.PathArgument arg,
176 final List<YangInstanceIdentifier.PathArgument> builder) {
178 final Class<? extends DataObject> argType = arg.getType();
179 DataContainerCodecPrototype<?> ctxProto = byBindingArgClass.get(argType);
180 if (ctxProto == null && Augmentation.class.isAssignableFrom(argType)) {
181 ctxProto = augmentationByClass(argType);
183 final DataContainerCodecContext<?, ?> context =
184 childNonNull(ctxProto, argType, "Class %s is not valid child of %s", argType, getBindingClass()).get();
185 if (context instanceof ChoiceNodeCodecContext) {
186 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) context;
187 final DataContainerCodecContext<?, ?> caze = choice.getCazeByChildClass(arg.getType());
188 choice.addYangPathArgument(arg, builder);
189 caze.addYangPathArgument(arg, builder);
190 return caze.bindingPathArgumentChild(arg, builder);
192 context.addYangPathArgument(arg, builder);
196 @SuppressWarnings("unchecked")
198 public NodeCodecContext<D> yangPathArgumentChild(final YangInstanceIdentifier.PathArgument arg) {
199 final NodeContextSupplier childSupplier;
200 if (arg instanceof NodeIdentifierWithPredicates) {
201 childSupplier = byYang.get(new NodeIdentifier(arg.getNodeType()));
202 } else if (arg instanceof AugmentationIdentifier) {
203 childSupplier = yangAugmentationChild((AugmentationIdentifier) arg);
205 childSupplier = byYang.get(arg);
208 return (NodeCodecContext<D>) childNonNull(childSupplier, arg,
209 "Argument %s is not valid child of %s", arg, getSchema()).get();
212 protected final LeafNodeCodecContext<?> getLeafChild(final String name) {
213 final LeafNodeCodecContext<?> value = leafChild.get(name);
214 return IncorrectNestingException.checkNonNull(value, "Leaf %s is not valid for %s", name, getBindingClass());
217 private DataContainerCodecPrototype<?> loadChildPrototype(final Class<?> childClass) {
218 final DataSchemaNode origDef = factory().getRuntimeContext().getSchemaDefinition(childClass);
219 // Direct instantiation or use in same module in which grouping
221 DataSchemaNode sameName;
223 sameName = getSchema().getDataChildByName(origDef.getQName());
224 } catch (final IllegalArgumentException e) {
227 final DataSchemaNode childSchema;
228 if (sameName != null) {
229 // Exactly same schema node
230 if (origDef.equals(sameName)) {
231 childSchema = sameName;
232 // We check if instantiated node was added via uses
233 // statement and is instantiation of same grouping
234 } else if (origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(sameName))) {
235 childSchema = sameName;
237 // Node has same name, but clearly is different
241 // We are looking for instantiation via uses in other module
242 final QName instantiedName = origDef.getQName().withModule(namespace());
243 final DataSchemaNode potential = getSchema().getDataChildByName(instantiedName);
244 // We check if it is really instantiated from same
245 // definition as class was derived
246 if (potential != null && origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(potential))) {
247 childSchema = potential;
252 final DataSchemaNode nonNullChild =
253 childNonNull(childSchema, childClass, "Node %s does not have child named %s", getSchema(), childClass);
254 return DataContainerCodecPrototype.from(childClass, nonNullChild, factory());
257 private DataContainerCodecPrototype<?> yangAugmentationChild(final AugmentationIdentifier arg) {
258 final DataContainerCodecPrototype<?> firstTry = byYangAugmented.get(arg);
259 if (firstTry != null) {
262 if (possibleAugmentations.containsKey(arg)) {
263 reloadAllAugmentations();
264 return byYangAugmented.get(arg);
270 private DataContainerCodecPrototype<?> augmentationByClass(@Nonnull final Class<?> childClass) {
271 final DataContainerCodecPrototype<?> firstTry = augmentationByClassOrEquivalentClass(childClass);
272 if (firstTry != null) {
275 reloadAllAugmentations();
276 return augmentationByClassOrEquivalentClass(childClass);
280 private DataContainerCodecPrototype<?> augmentationByClassOrEquivalentClass(@Nonnull final Class<?> childClass) {
281 final DataContainerCodecPrototype<?> childProto = byStreamAugmented.get(childClass);
282 if (childProto != null) {
287 * It is potentially mismatched valid augmentation - we look up equivalent augmentation using reflection
288 * and walk all stream child and compare augmentations classes if they are equivalent. When we find a match
289 * we'll cache it so we do not need to perform reflection operations again.
291 final DataContainerCodecPrototype<?> mismatched = mismatchedAugmented.get(childClass);
292 if (mismatched != null) {
296 @SuppressWarnings("rawtypes")
297 final Class<?> augTarget = BindingReflections.findAugmentationTarget((Class) childClass);
298 if (getBindingClass().equals(augTarget)) {
299 for (final DataContainerCodecPrototype<?> realChild : byStreamAugmented.values()) {
300 if (Augmentation.class.isAssignableFrom(realChild.getBindingClass())
301 && BindingReflections.isSubstitutionFor(childClass, realChild.getBindingClass())) {
302 return cacheMismatched(childClass, realChild);
309 private synchronized DataContainerCodecPrototype<?> cacheMismatched(final Class<?> childClass,
310 final DataContainerCodecPrototype<?> prototype) {
311 // Original access was unsynchronized, we need to perform additional checking
312 final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> local = mismatchedAugmented;
313 final DataContainerCodecPrototype<?> existing = local.get(childClass);
314 if (existing != null) {
318 final Builder<Class<?>, DataContainerCodecPrototype<?>> builder = ImmutableMap.builderWithExpectedSize(
320 builder.putAll(local);
321 builder.put(childClass, prototype);
323 mismatchedAugmented = builder.build();
327 private DataContainerCodecPrototype<?> getAugmentationPrototype(final Type value) {
328 final ClassLoadingStrategy loader = factory().getRuntimeContext().getStrategy();
329 @SuppressWarnings("rawtypes")
330 final Class augClass;
332 augClass = loader.loadClass(value);
333 } catch (final ClassNotFoundException e) {
334 LOG.debug("Failed to load augmentation prototype for {}. Will be retried when needed.", value, e);
338 @SuppressWarnings("unchecked")
339 final Entry<AugmentationIdentifier, AugmentationSchemaNode> augSchema = factory().getRuntimeContext()
340 .getResolvedAugmentationSchema(getSchema(), augClass);
341 return DataContainerCodecPrototype.from(augClass, augSchema.getKey(), augSchema.getValue(), factory());
344 @SuppressWarnings("rawtypes")
345 Object getBindingChildValue(final Method method, final NormalizedNodeContainer domData) {
346 final NodeCodecContext<?> childContext = byMethod.get(method).get();
347 @SuppressWarnings("unchecked")
348 final java.util.Optional<NormalizedNode<?, ?>> domChild = domData.getChild(childContext.getDomPathArgument());
349 if (domChild.isPresent()) {
350 return childContext.deserializeObject(domChild.get());
351 } else if (childContext instanceof LeafNodeCodecContext) {
352 return ((LeafNodeCodecContext)childContext).defaultObject();
358 @SuppressWarnings("checkstyle:illegalCatch")
359 protected final D createBindingProxy(final NormalizedNodeContainer<?, ?, ?> node) {
361 return (D) proxyConstructor.invokeExact((InvocationHandler)new LazyDataObject<>(this, node));
362 } catch (final Throwable e) {
363 Throwables.throwIfUnchecked(e);
364 throw new RuntimeException(e);
368 @SuppressWarnings("unchecked")
369 Map<Class<? extends Augmentation<?>>, Augmentation<?>> getAllAugmentationsFrom(
370 final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data) {
372 @SuppressWarnings("rawtypes")
373 final Map map = new HashMap<>();
375 for (final NormalizedNode<?, ?> childValue : data.getValue()) {
376 if (childValue instanceof AugmentationNode) {
377 final AugmentationNode augDomNode = (AugmentationNode) childValue;
378 final DataContainerCodecPrototype<?> codecProto = yangAugmentationChild(augDomNode.getIdentifier());
379 if (codecProto != null) {
380 final DataContainerCodecContext<?, ?> codec = codecProto.get();
381 map.put(codec.getBindingClass(), codec.deserializeObject(augDomNode));
385 for (final DataContainerCodecPrototype<?> value : byStreamAugmented.values()) {
386 final java.util.Optional<NormalizedNode<?, ?>> augData = data.getChild(value.getYangArg());
387 if (augData.isPresent()) {
388 map.put(value.getBindingClass(), value.get().deserializeObject(augData.get()));
394 Collection<Method> getHashCodeAndEqualsMethods() {
395 return byMethod.keySet();
399 public InstanceIdentifier.PathArgument deserializePathArgument(final YangInstanceIdentifier.PathArgument arg) {
400 Preconditions.checkArgument(getDomPathArgument().equals(arg));
405 public YangInstanceIdentifier.PathArgument serializePathArgument(final InstanceIdentifier.PathArgument arg) {
406 Preconditions.checkArgument(bindingArg().equals(arg));
407 return getDomPathArgument();