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.yangtools.binding.data.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.ImmutableSortedMap;
15 import java.lang.invoke.MethodHandle;
16 import java.lang.invoke.MethodHandles;
17 import java.lang.invoke.MethodHandles.Lookup;
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 org.opendaylight.yangtools.sal.binding.generator.api.ClassLoadingStrategy;
31 import org.opendaylight.yangtools.sal.binding.model.api.Type;
32 import org.opendaylight.yangtools.yang.binding.Augmentable;
33 import org.opendaylight.yangtools.yang.binding.Augmentation;
34 import org.opendaylight.yangtools.yang.binding.AugmentationHolder;
35 import org.opendaylight.yangtools.yang.binding.DataObject;
36 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
37 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
38 import org.opendaylight.yangtools.yang.common.QName;
39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
40 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
41 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
43 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
44 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
45 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
46 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
47 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
48 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
49 import org.opendaylight.yangtools.yang.model.util.SchemaNodeUtils;
50 import org.slf4j.Logger;
51 import org.slf4j.LoggerFactory;
53 abstract class DataObjectCodecContext<D extends DataObject,T extends DataNodeContainer> extends DataContainerCodecContext<D,T> {
54 private static final Logger LOG = LoggerFactory.getLogger(DataObjectCodecContext.class);
55 private static final Lookup LOOKUP = MethodHandles.publicLookup();
56 private static final MethodType CONSTRUCTOR_TYPE = MethodType.methodType(void.class, InvocationHandler.class);
57 private static final MethodType DATAOBJECT_TYPE = MethodType.methodType(DataObject.class, InvocationHandler.class);
58 private static final Comparator<Method> METHOD_BY_ALPHABET = new Comparator<Method>() {
60 public int compare(final Method o1, final Method o2) {
61 return o1.getName().compareTo(o2.getName());
65 private final ImmutableMap<String, LeafNodeCodecContext<?>> leafChild;
66 private final ImmutableMap<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYang;
67 private final ImmutableSortedMap<Method, NodeContextSupplier> byMethod;
68 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byStreamClass;
69 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClass;
70 private final MethodHandle proxyConstructor;
72 protected DataObjectCodecContext(final DataContainerCodecPrototype<T> prototype) {
75 this.leafChild = factory().getLeafNodes(getBindingClass(), schema());
77 final Map<Class<?>, Method> clsToMethod = BindingReflections.getChildrenClassToMethod(getBindingClass());
79 final Map<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYangBuilder = new HashMap<>();
80 final SortedMap<Method, NodeContextSupplier> byMethodBuilder = new TreeMap<>(METHOD_BY_ALPHABET);
81 final Map<Class<?>, DataContainerCodecPrototype<?>> byStreamClassBuilder = new HashMap<>();
82 final Map<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClassBuilder = new HashMap<>();
84 // Adds leaves to mapping
85 for (final LeafNodeCodecContext<?> leaf : leafChild.values()) {
86 byMethodBuilder.put(leaf.getGetter(), leaf);
87 byYangBuilder.put(leaf.getDomPathArgument(), leaf);
90 for (final Entry<Class<?>, Method> childDataObj : clsToMethod.entrySet()) {
91 final DataContainerCodecPrototype<?> childProto = loadChildPrototype(childDataObj.getKey());
92 byMethodBuilder.put(childDataObj.getValue(), childProto);
93 byStreamClassBuilder.put(childProto.getBindingClass(), childProto);
94 byYangBuilder.put(childProto.getYangArg(), childProto);
95 if (childProto.isChoice()) {
96 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) childProto.get();
97 for(final Class<?> cazeChild : choice.getCaseChildrenClasses()) {
98 byBindingArgClassBuilder.put(cazeChild, childProto);
102 this.byMethod = ImmutableSortedMap.copyOfSorted(byMethodBuilder);
103 if (Augmentable.class.isAssignableFrom(getBindingClass())) {
104 final ImmutableMap<AugmentationIdentifier, Type> augmentations = factory().getRuntimeContext()
105 .getAvailableAugmentationTypes(schema());
106 for (final Entry<AugmentationIdentifier, Type> augment : augmentations.entrySet()) {
107 final DataContainerCodecPrototype<?> augProto = getAugmentationPrototype(augment.getValue());
108 if (augProto != null) {
109 byYangBuilder.put(augProto.getYangArg(), augProto);
110 byStreamClassBuilder.put(augProto.getBindingClass(), augProto);
115 this.byYang = ImmutableMap.copyOf(byYangBuilder);
116 this.byStreamClass = ImmutableMap.copyOf(byStreamClassBuilder);
117 byBindingArgClassBuilder.putAll(byStreamClass);
118 this.byBindingArgClass = ImmutableMap.copyOf(byBindingArgClassBuilder);
120 final Class<?> proxyClass = Proxy.getProxyClass(getBindingClass().getClassLoader(), new Class[] { getBindingClass(), AugmentationHolder.class });
122 proxyConstructor = LOOKUP.findConstructor(proxyClass, CONSTRUCTOR_TYPE).asType(DATAOBJECT_TYPE);
123 } catch (NoSuchMethodException | IllegalAccessException e) {
124 throw new IllegalStateException("Failed to find contructor for class " + proxyClass);
129 @SuppressWarnings("unchecked")
131 public <DV extends DataObject> DataContainerCodecContext<DV, ?> streamChild(final Class<DV> childClass) {
132 DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
133 if (childProto != null) {
134 return (DataContainerCodecContext<DV,?>) childProto.get();
137 if (Augmentation.class.isAssignableFrom(childClass)) {
139 * It is potentially mismatched valid augmentation - we look up equivalent augmentation
140 * using reflection and walk all stream child and compare augmenations classes
141 * if they are equivalent.
143 * FIXME: Cache mapping of mismatched augmentation to real one, to speed up lookup.
145 @SuppressWarnings("rawtypes")
146 final Class<?> augTarget = BindingReflections.findAugmentationTarget((Class) childClass);
147 if ((getBindingClass().equals(augTarget))) {
148 for (final DataContainerCodecPrototype<?> realChild : byStreamClass.values()) {
149 if (Augmentation.class.isAssignableFrom(realChild.getBindingClass())
150 && BindingReflections.isSubstitutionFor(childClass,realChild.getBindingClass())) {
151 childProto = realChild;
157 return (DataContainerCodecContext<DV, ?>) childNonNull(childProto, childClass, " Child %s is not valid child.").get();
161 @SuppressWarnings("unchecked")
163 public <DV extends DataObject> Optional<DataContainerCodecContext<DV, ?>> possibleStreamChild(
164 final Class<DV> childClass) {
165 final DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
166 if(childProto != null) {
167 return Optional.<DataContainerCodecContext<DV,?>>of((DataContainerCodecContext<DV,?>) childProto.get());
169 return Optional.absent();
173 public DataContainerCodecContext<?,?> bindingPathArgumentChild(final InstanceIdentifier.PathArgument arg,
174 final List<YangInstanceIdentifier.PathArgument> builder) {
176 final Class<? extends DataObject> argType = arg.getType();
177 final DataContainerCodecPrototype<?> ctxProto = byBindingArgClass.get(argType);
178 final DataContainerCodecContext<?, ?> context =
179 childNonNull(ctxProto, argType, "Class %s is not valid child of %s", argType, getBindingClass()).get();
180 if (context instanceof ChoiceNodeCodecContext) {
181 final ChoiceNodeCodecContext<?> choice = (ChoiceNodeCodecContext<?>) context;
182 final DataContainerCodecContext<?, ?> caze = choice.getCazeByChildClass(arg.getType());
183 choice.addYangPathArgument(arg, builder);
184 caze.addYangPathArgument(arg, builder);
185 return caze.bindingPathArgumentChild(arg, builder);
187 context.addYangPathArgument(arg, builder);
191 @SuppressWarnings("unchecked")
193 public NodeCodecContext<D> yangPathArgumentChild(YangInstanceIdentifier.PathArgument arg) {
194 if(arg instanceof NodeIdentifierWithPredicates) {
195 arg = new NodeIdentifier(arg.getNodeType());
197 final NodeContextSupplier childSupplier = byYang.get(arg);
198 childNonNull(childSupplier != null, arg, "Argument %s is not valid child of %s", arg, schema());
199 return (NodeCodecContext<D>) childSupplier.get();
202 protected final LeafNodeCodecContext<?> getLeafChild(final String name) {
203 final LeafNodeCodecContext<?> value = leafChild.get(name);
204 return IncorrectNestingException.checkNonNull(value, "Leaf %s is not valid for %s", name, getBindingClass());
207 private DataContainerCodecPrototype<?> loadChildPrototype(final Class<?> childClass) {
208 final DataSchemaNode origDef = factory().getRuntimeContext().getSchemaDefinition(childClass);
209 // Direct instantiation or use in same module in which grouping
211 DataSchemaNode sameName;
213 sameName = schema().getDataChildByName(origDef.getQName());
214 } catch (final IllegalArgumentException e) {
217 final DataSchemaNode childSchema;
218 if (sameName != null) {
219 // Exactly same schema node
220 if (origDef.equals(sameName)) {
221 childSchema = sameName;
222 // We check if instantiated node was added via uses
223 // statement and is instantiation of same grouping
224 } else if (origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(sameName))) {
225 childSchema = sameName;
227 // Node has same name, but clearly is different
231 // We are looking for instantiation via uses in other module
232 final QName instantiedName = QName.create(namespace(), origDef.getQName().getLocalName());
233 final DataSchemaNode potential = schema().getDataChildByName(instantiedName);
234 // We check if it is really instantiated from same
235 // definition as class was derived
236 if (potential != null && origDef.equals(SchemaNodeUtils.getRootOriginalIfPossible(potential))) {
237 childSchema = potential;
242 final DataSchemaNode nonNullChild =
243 childNonNull(childSchema, childClass, "Node %s does not have child named %s", schema(), childClass);
244 return DataContainerCodecPrototype.from(childClass, nonNullChild, factory());
247 private DataContainerCodecPrototype<?> getAugmentationPrototype(final Type value) {
248 final ClassLoadingStrategy loader = factory().getRuntimeContext().getStrategy();
249 @SuppressWarnings("rawtypes")
250 final Class augClass;
252 augClass = loader.loadClass(value);
253 } catch (final ClassNotFoundException e) {
254 LOG.warn("Failed to load augmentation prototype for {}", value, e);
258 @SuppressWarnings("unchecked")
259 final Entry<AugmentationIdentifier, AugmentationSchema> augSchema = factory().getRuntimeContext()
260 .getResolvedAugmentationSchema(schema(), augClass);
261 return DataContainerCodecPrototype.from(augClass, augSchema.getKey(), augSchema.getValue(), factory());
264 @SuppressWarnings("rawtypes")
265 Object getBindingChildValue(final Method method, final NormalizedNodeContainer domData) {
266 final NodeCodecContext<?> childContext = byMethod.get(method).get();
267 @SuppressWarnings("unchecked")
268 final Optional<NormalizedNode<?, ?>> domChild = domData.getChild(childContext.getDomPathArgument());
269 if (domChild.isPresent()) {
270 return childContext.deserializeObject(domChild.get());
275 protected final D createBindingProxy(final NormalizedNodeContainer<?, ?, ?> node) {
277 return (D) proxyConstructor.invokeExact((InvocationHandler)new LazyDataObject<>(this, node));
278 } catch (final Throwable e) {
279 throw Throwables.propagate(e);
283 @SuppressWarnings("unchecked")
284 public Map<Class<? extends Augmentation<?>>, Augmentation<?>> getAllAugmentationsFrom(
285 final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data) {
287 @SuppressWarnings("rawtypes")
288 final Map map = new HashMap<>();
290 for(final DataContainerCodecPrototype<?> value : byStreamClass.values()) {
291 if(Augmentation.class.isAssignableFrom(value.getBindingClass())) {
292 final Optional<NormalizedNode<?, ?>> augData = data.getChild(value.getYangArg());
293 if(augData.isPresent()) {
294 map.put(value.getBindingClass(), value.get().deserializeObject(augData.get()));
301 public Collection<Method> getHashCodeAndEqualsMethods() {
302 // FIXME: Sort method in same order as in hashCode for generated class.
303 return byMethod.keySet();
307 public InstanceIdentifier.PathArgument deserializePathArgument(final YangInstanceIdentifier.PathArgument arg) {
308 Preconditions.checkArgument(getDomPathArgument().equals(arg));
313 public YangInstanceIdentifier.PathArgument serializePathArgument(final InstanceIdentifier.PathArgument arg) {
314 Preconditions.checkArgument(bindingArg().equals(arg));
315 return getDomPathArgument();