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.DataObject;
35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
36 import org.opendaylight.yangtools.yang.binding.util.BindingReflections;
37 import org.opendaylight.yangtools.yang.common.QName;
38 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
39 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
40 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
41 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
42 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
43 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
44 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
45 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
46 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
47 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
48 import org.opendaylight.yangtools.yang.model.util.SchemaNodeUtils;
49 import org.slf4j.Logger;
50 import org.slf4j.LoggerFactory;
52 abstract class DataObjectCodecContext<T extends DataNodeContainer> extends DataContainerCodecContext<T> {
53 private static final Logger LOG = LoggerFactory.getLogger(DataObjectCodecContext.class);
54 private static final Lookup LOOKUP = MethodHandles.publicLookup();
55 private static final MethodType CONSTRUCTOR_TYPE = MethodType.methodType(void.class, InvocationHandler.class);
56 private static final MethodType DATAOBJECT_TYPE = MethodType.methodType(DataObject.class, InvocationHandler.class);
57 private static final Comparator<Method> METHOD_BY_ALPHABET = new Comparator<Method>() {
59 public int compare(final Method o1, final Method o2) {
60 return o1.getName().compareTo(o2.getName());
64 private final ImmutableMap<String, LeafNodeCodecContext> leafChild;
65 private final ImmutableMap<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYang;
66 private final ImmutableSortedMap<Method, NodeContextSupplier> byMethod;
67 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byStreamClass;
68 private final ImmutableMap<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClass;
69 private final MethodHandle proxyConstructor;
71 // FIXME: this field seems to be unused
72 private final Method augmentationGetter;
74 protected DataObjectCodecContext(final DataContainerCodecPrototype<T> prototype) {
77 this.leafChild = factory().getLeafNodes(bindingClass(), schema());
79 Map<Class<?>, Method> clsToMethod = BindingReflections.getChildrenClassToMethod(bindingClass());
81 Map<YangInstanceIdentifier.PathArgument, NodeContextSupplier> byYangBuilder = new HashMap<>();
82 SortedMap<Method, NodeContextSupplier> byMethodBuilder = new TreeMap<>(METHOD_BY_ALPHABET);
83 Map<Class<?>, DataContainerCodecPrototype<?>> byStreamClassBuilder = new HashMap<>();
84 Map<Class<?>, DataContainerCodecPrototype<?>> byBindingArgClassBuilder = new HashMap<>();
86 // Adds leaves to mapping
87 for (LeafNodeCodecContext leaf : leafChild.values()) {
88 byMethodBuilder.put(leaf.getGetter(), leaf);
89 byYangBuilder.put(leaf.getDomPathArgument(), leaf);
92 for (Entry<Class<?>, Method> childDataObj : clsToMethod.entrySet()) {
93 DataContainerCodecPrototype<?> childProto = loadChildPrototype(childDataObj.getKey());
94 byMethodBuilder.put(childDataObj.getValue(), childProto);
95 byStreamClassBuilder.put(childProto.getBindingClass(), childProto);
96 byYangBuilder.put(childProto.getYangArg(), childProto);
97 if (childProto.isChoice()) {
98 ChoiceNodeCodecContext choice = (ChoiceNodeCodecContext) childProto.get();
99 for(Class<?> cazeChild : choice.getCaseChildrenClasses()) {
100 byBindingArgClassBuilder.put(cazeChild, childProto);
104 this.byMethod = ImmutableSortedMap.copyOfSorted(byMethodBuilder);
105 if (Augmentable.class.isAssignableFrom(bindingClass())) {
107 augmentationGetter = bindingClass().getMethod("getAugmentation", Class.class);
108 } catch (NoSuchMethodException | SecurityException e) {
109 throw new IllegalStateException("Could not get required method.",e);
111 ImmutableMap<AugmentationIdentifier, Type> augmentations = factory().getRuntimeContext()
112 .getAvailableAugmentationTypes(schema());
113 for (Entry<AugmentationIdentifier, Type> augment : augmentations.entrySet()) {
114 DataContainerCodecPrototype<?> augProto = getAugmentationPrototype(augment.getValue());
115 if (augProto != null) {
116 byYangBuilder.put(augProto.getYangArg(), augProto);
117 byStreamClassBuilder.put(augProto.getBindingClass(), augProto);
121 augmentationGetter = null;
124 this.byYang = ImmutableMap.copyOf(byYangBuilder);
125 this.byStreamClass = ImmutableMap.copyOf(byStreamClassBuilder);
126 byBindingArgClassBuilder.putAll(byStreamClass);
127 this.byBindingArgClass = ImmutableMap.copyOf(byBindingArgClassBuilder);
129 final Class<?> proxyClass = Proxy.getProxyClass(bindingClass().getClassLoader(), new Class[] { bindingClass() });
131 proxyConstructor = LOOKUP.findConstructor(proxyClass, CONSTRUCTOR_TYPE).asType(DATAOBJECT_TYPE);
132 } catch (NoSuchMethodException | IllegalAccessException e) {
133 throw new IllegalStateException("Failed to find contructor for class " + proxyClass);
138 protected DataContainerCodecContext<?> getStreamChild(final Class<?> childClass) {
139 DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
140 if (childProto != null) {
141 return childProto.get();
144 if (Augmentation.class.isAssignableFrom(childClass)) {
146 * It is potentially mismatched valid augmentation - we look up equivalent augmentation
147 * using reflection and walk all stream child and compare augmenations classes
148 * if they are equivalent.
150 * FIXME: Cache mapping of mismatched augmentation to real one, to speed up lookup.
152 Class<?> augTarget = BindingReflections.findAugmentationTarget((Class) childClass);
153 if ((bindingClass().equals(augTarget))) {
154 for (DataContainerCodecPrototype<?> realChild : byStreamClass.values()) {
155 if (Augmentation.class.isAssignableFrom(realChild.getBindingClass())
156 && BindingReflections.isSubstitutionFor(childClass,realChild.getBindingClass())) {
157 childProto = realChild;
163 Preconditions.checkArgument(childProto != null, " Child %s is not valid child.",childClass);
164 return childProto.get();
168 protected Optional<DataContainerCodecContext<?>> getPossibleStreamChild(final Class<?> childClass) {
169 DataContainerCodecPrototype<?> childProto = byStreamClass.get(childClass);
170 if(childProto != null) {
171 return Optional.<DataContainerCodecContext<?>>of(childProto.get());
173 return Optional.absent();
177 protected DataContainerCodecContext<?> getIdentifierChild(final InstanceIdentifier.PathArgument arg,
178 final List<YangInstanceIdentifier.PathArgument> builder) {
180 final Class<? extends DataObject> argType = arg.getType();
181 final DataContainerCodecPrototype<?> ctxProto = byBindingArgClass.get(argType);
182 if(ctxProto != null) {
183 final DataContainerCodecContext<?> context = ctxProto.get();
184 if(context instanceof ChoiceNodeCodecContext) {
185 final ChoiceNodeCodecContext choice = (ChoiceNodeCodecContext) context;
186 final DataContainerCodecContext<?> caze = choice.getCazeByChildClass(arg.getType());
188 choice.addYangPathArgument(arg, builder);
189 caze.addYangPathArgument(arg, builder);
190 return caze.getIdentifierChild(arg, builder);
194 context.addYangPathArgument(arg, builder);
197 // Argument is not valid child.
202 protected NodeCodecContext getYangIdentifierChild(YangInstanceIdentifier.PathArgument arg) {
203 if(arg instanceof NodeIdentifierWithPredicates) {
204 arg = new NodeIdentifier(arg.getNodeType());
206 NodeContextSupplier childSupplier = byYang.get(arg);
207 Preconditions.checkArgument(childSupplier != null, "Argument %s is not valid child of %s", arg, schema());
208 return childSupplier.get();
211 protected final LeafNodeCodecContext getLeafChild(final String name) {
212 final LeafNodeCodecContext value = leafChild.get(name);
213 Preconditions.checkArgument(value != null, "Leaf %s is not valid for %s", name, bindingClass());
217 private DataContainerCodecPrototype<?> loadChildPrototype(final Class<?> childClass) {
218 DataSchemaNode origDef = factory().getRuntimeContext().getSchemaDefinition(childClass);
219 // Direct instantiation or use in same module in which grouping
221 DataSchemaNode sameName;
223 sameName = schema().getDataChildByName(origDef.getQName());
224 } catch (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 QName instantiedName = QName.create(namespace(), origDef.getQName().getLocalName());
243 DataSchemaNode potential = schema().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 Preconditions.checkArgument(childSchema != null, "Node %s does not have child named %s", schema(), childClass);
253 return DataContainerCodecPrototype.from(childClass, childSchema, factory());
256 private DataContainerCodecPrototype<?> getAugmentationPrototype(final Type value) {
257 ClassLoadingStrategy loader = factory().getRuntimeContext().getStrategy();
258 @SuppressWarnings("rawtypes")
259 final Class augClass;
261 augClass = loader.loadClass(value);
262 } catch (ClassNotFoundException e) {
263 LOG.warn("Failed to load augmentation prototype for {}", value, e);
267 Entry<AugmentationIdentifier, AugmentationSchema> augSchema = factory().getRuntimeContext()
268 .getResolvedAugmentationSchema(schema(), augClass);
269 return DataContainerCodecPrototype.from(augClass, augSchema.getKey(), augSchema.getValue(), factory());
272 @SuppressWarnings("rawtypes")
273 Object getBindingChildValue(final Method method, final NormalizedNodeContainer domData) {
274 NodeCodecContext childContext = byMethod.get(method).get();
275 Optional<NormalizedNode<?, ?>> domChild = domData.getChild(childContext.getDomPathArgument());
276 if (domChild.isPresent()) {
277 return childContext.dataFromNormalizedNode(domChild.get());
282 protected final DataObject createBindingProxy(final NormalizedNodeContainer<?, ?, ?> node) {
284 return (DataObject) proxyConstructor.invokeExact((InvocationHandler)new LazyDataObject(this, node));
285 } catch (Throwable e) {
286 throw Throwables.propagate(e);
290 public Map<Class<? extends Augmentation<?>>, Augmentation<?>> getAllAugmentationsFrom(
291 final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data) {
293 @SuppressWarnings("rawtypes")
294 Map map = new HashMap<>();
296 for(DataContainerCodecPrototype<?> value : byStreamClass.values()) {
297 if(Augmentation.class.isAssignableFrom(value.getBindingClass())) {
298 Optional<NormalizedNode<?, ?>> augData = data.getChild(value.getYangArg());
299 if(augData.isPresent()) {
300 map.put(value.getBindingClass(), value.get().dataFromNormalizedNode(augData.get()));
307 public Collection<Method> getHashCodeAndEqualsMethods() {
308 // FIXME: Sort method in same order as in hashCode for generated class.
309 return byMethod.keySet();