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 java.util.Objects.requireNonNull;
11 import static org.opendaylight.mdsal.binding.spec.naming.BindingMapping.IDENTIFIABLE_KEY_NAME;
13 import com.google.common.collect.ImmutableMap;
14 import com.google.common.collect.ImmutableMap.Builder;
15 import java.lang.invoke.MethodHandle;
16 import java.lang.invoke.MethodHandles;
17 import java.lang.invoke.MethodType;
18 import java.lang.invoke.WrongMethodTypeException;
19 import java.lang.reflect.Method;
20 import java.util.Collection;
21 import java.util.List;
22 import org.eclipse.jdt.annotation.NonNull;
23 import org.opendaylight.yangtools.yang.binding.DataObject;
24 import org.opendaylight.yangtools.yang.binding.Identifiable;
25 import org.opendaylight.yangtools.yang.binding.Identifier;
26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.IdentifiableItem;
28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
30 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
31 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
32 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
34 abstract class KeyedListNodeCodecContext<D extends DataObject & Identifiable<?>> extends ListNodeCodecContext<D> {
35 private static final class Ordered<D extends DataObject & Identifiable<?>> extends KeyedListNodeCodecContext<D> {
36 Ordered(final DataContainerCodecPrototype<ListSchemaNode> prototype, final Method keyMethod,
37 final IdentifiableItemCodec codec) {
38 super(prototype, keyMethod, codec);
42 private static final class Unordered<D extends DataObject & Identifiable<?>> extends KeyedListNodeCodecContext<D> {
43 private static final MethodType KEY_TYPE = MethodType.methodType(Object.class, DataObject.class);
45 private final MethodHandle keyHandle;
47 Unordered(final DataContainerCodecPrototype<ListSchemaNode> prototype, final Method keyMethod,
48 final IdentifiableItemCodec codec) {
49 super(prototype, keyMethod, codec);
52 this.keyHandle = MethodHandles.publicLookup().unreflect(keyMethod).asType(KEY_TYPE);
53 } catch (IllegalAccessException | WrongMethodTypeException e) {
54 throw new LinkageError("Failed to acquire method " + keyMethod, e);
59 Object fromMap(final MapNode map, final Collection<MapEntryNode> value) {
60 // FIXME: Could be this lazy transformed map?
61 final Builder<Object, D> builder = ImmutableMap.builderWithExpectedSize(value.size());
62 for (MapEntryNode node : value) {
63 final D entry = fromMapEntry(node);
64 builder.put(getKey(entry), entry);
66 return builder.build();
69 @SuppressWarnings("checkstyle:illegalCatch")
70 private Object getKey(final D entry) {
72 return keyHandle.invokeExact(entry);
73 } catch (Throwable e) {
74 throw new LinkageError("Failed to extract key from " + entry, e);
79 private final IdentifiableItemCodec codec;
81 KeyedListNodeCodecContext(final DataContainerCodecPrototype<ListSchemaNode> prototype,
82 final Method keyMethod, final IdentifiableItemCodec codec) {
83 super(prototype, keyMethod);
84 this.codec = requireNonNull(codec);
87 @SuppressWarnings("rawtypes")
88 static KeyedListNodeCodecContext create(final DataContainerCodecPrototype<ListSchemaNode> prototype) {
89 final Class<?> bindingClass = prototype.getBindingClass();
90 final Method keyMethod;
92 keyMethod = bindingClass.getMethod(IDENTIFIABLE_KEY_NAME);
93 } catch (NoSuchMethodException e) {
94 throw new IllegalStateException("Required method not available", e);
97 final ListSchemaNode schema = prototype.getSchema();
98 final IdentifiableItemCodec codec = prototype.getFactory().getPathArgumentCodec(bindingClass, schema);
99 return schema.isUserOrdered() ? new Ordered<>(prototype, keyMethod, codec)
100 : new Unordered<>(prototype, keyMethod, codec);
104 protected void addYangPathArgument(final InstanceIdentifier.PathArgument arg,
105 final List<YangInstanceIdentifier.PathArgument> builder) {
107 * DOM Instance Identifier for list is always represent by two entries one for map and one for children. This
108 * is also true for wildcarded instance identifiers
110 if (builder == null) {
114 super.addYangPathArgument(arg, builder);
115 if (arg instanceof IdentifiableItem) {
116 builder.add(codec.serialize((IdentifiableItem<?, ?>) arg));
119 super.addYangPathArgument(arg, builder);
124 protected InstanceIdentifier.PathArgument getBindingPathArgument(final YangInstanceIdentifier.PathArgument domArg) {
125 if (domArg instanceof NodeIdentifierWithPredicates) {
126 return codec.deserialize((NodeIdentifierWithPredicates) domArg);
128 return super.getBindingPathArgument(domArg);
131 @SuppressWarnings({ "rawtypes", "unchecked" })
132 NodeIdentifierWithPredicates serialize(final Identifier<?> key) {
133 return codec.serialize(IdentifiableItem.of((Class)getBindingClass(), (Identifier)key));
136 @NonNull Identifier<?> deserialize(final NodeIdentifierWithPredicates arg) {
137 return codec.deserializeIdentifier(arg);
141 public YangInstanceIdentifier.PathArgument serializePathArgument(final InstanceIdentifier.PathArgument arg) {
142 if (arg instanceof IdentifiableItem) {
143 return codec.serialize((IdentifiableItem<?, ?>) arg);
145 return super.serializePathArgument(arg);
149 public InstanceIdentifier.PathArgument deserializePathArgument(final YangInstanceIdentifier.PathArgument arg) {
150 if (arg instanceof NodeIdentifierWithPredicates) {
151 return codec.deserialize((NodeIdentifierWithPredicates) arg);
153 return super.deserializePathArgument(arg);