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.collect.ImmutableCollection;
12 import com.google.common.collect.ImmutableSet;
13 import java.io.IOException;
14 import java.util.List;
15 import javax.annotation.Nonnull;
16 import javax.annotation.Nullable;
17 import org.opendaylight.mdsal.binding.dom.codec.api.BindingNormalizedNodeCachingCodec;
18 import org.opendaylight.yangtools.yang.binding.BindingStreamEventWriter;
19 import org.opendaylight.yangtools.yang.binding.DataObject;
20 import org.opendaylight.yangtools.yang.binding.DataObjectSerializer;
21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.PathArgument;
22 import org.opendaylight.yangtools.yang.common.QName;
23 import org.opendaylight.yangtools.yang.common.QNameModule;
24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
25 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
26 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
27 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
28 import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
30 abstract class DataContainerCodecContext<D extends DataObject,T> extends NodeCodecContext<D> {
32 private final DataContainerCodecPrototype<T> prototype;
33 private volatile DataObjectSerializer eventStreamSerializer;
35 protected DataContainerCodecContext(final DataContainerCodecPrototype<T> prototype) {
36 this.prototype = prototype;
40 public final T getSchema() {
41 return prototype.getSchema();
44 protected final QNameModule namespace() {
45 return prototype.getNamespace();
48 protected final CodecContextFactory factory() {
49 return prototype.getFactory();
53 protected YangInstanceIdentifier.PathArgument getDomPathArgument() {
54 return prototype.getYangArg();
58 * Returns nested node context using supplied YANG Instance Identifier.
60 * @param arg Yang Instance Identifier Argument
61 * @return Context of child
62 * @throws IllegalArgumentException If supplied argument does not represent valid child.
65 public abstract NodeCodecContext<?> yangPathArgumentChild(YangInstanceIdentifier.PathArgument arg);
68 * Returns nested node context using supplied Binding Instance Identifier
69 * and adds YANG instance identifiers to supplied list.
71 * @param arg Binding Instance Identifier Argument
72 * @return Context of child or null if supplied {@code arg} does not represent valid child.
73 * @throws IllegalArgumentException If supplied argument does not represent valid child.
77 public DataContainerCodecContext<?,?> bindingPathArgumentChild(final PathArgument arg,
78 final List<YangInstanceIdentifier.PathArgument> builder) {
79 final DataContainerCodecContext<?,?> child = streamChild(arg.getType());
81 if (builder != null) {
82 child.addYangPathArgument(arg,builder);
86 throw new IllegalArgumentException("Supplied argument is not valid child");
90 * Returns deserialized Binding Path Argument from YANG instance identifier.
92 protected PathArgument getBindingPathArgument(final YangInstanceIdentifier.PathArgument domArg) {
96 protected final PathArgument bindingArg() {
97 return prototype.getBindingArg();
100 @SuppressWarnings("unchecked")
102 public final Class<D> getBindingClass() {
103 return Class.class.cast(prototype.getBindingClass());
107 * Returns child context as if it was walked by {@link BindingStreamEventWriter}. This means that to enter case, one
108 * must issue getChild(ChoiceClass).getChild(CaseClass).
110 * @param childClass child class
111 * @return Context of child node or null, if supplied class is not subtree child
112 * @throws IllegalArgumentException If supplied child class is not valid in specified context.
115 public abstract @Nullable <C extends DataObject> DataContainerCodecContext<C, ?> streamChild(Class<C> childClass);
118 * Returns child context as if it was walked by {@link BindingStreamEventWriter}. This means that to enter case, one
119 * must issue getChild(ChoiceClass).getChild(CaseClass).
121 * @param childClass child class
122 * @return Context of child or Optional absent is supplied class is not applicable in context.
125 public abstract <C extends DataObject> Optional<DataContainerCodecContext<C,?>> possibleStreamChild(
126 Class<C> childClass);
129 public String toString() {
130 return getClass().getSimpleName() + " [" + prototype.getBindingClass() + "]";
134 public BindingNormalizedNodeCachingCodec<D> createCachingCodec(
135 final ImmutableCollection<Class<? extends DataObject>> cacheSpecifier) {
136 if (cacheSpecifier.isEmpty()) {
137 return new NonCachingCodec<>(this);
139 return new CachingNormalizedNodeCodec<>(this,ImmutableSet.copyOf(cacheSpecifier));
142 BindingStreamEventWriter createWriter(final NormalizedNodeStreamWriter domWriter) {
143 return BindingToNormalizedStreamWriter.create(this, domWriter);
147 protected final <V> V childNonNull(@Nullable final V nullable, final YangInstanceIdentifier.PathArgument child,
148 final String message, final Object... args) {
149 if (nullable != null) {
152 MissingSchemaException.checkModulePresent(factory().getRuntimeContext().getSchemaContext(), child);
153 throw IncorrectNestingException.create(message, args);
157 protected final <V> V childNonNull(@Nullable final V nullable, final QName child, final String message,
158 final Object... args) {
159 if (nullable != null) {
162 MissingSchemaException.checkModulePresent(factory().getRuntimeContext().getSchemaContext(), child);
163 throw IncorrectNestingException.create(message, args);
167 protected final <V> V childNonNull(@Nullable final V nullable, final Class<?> childClass, final String message,
168 final Object... args) {
169 if (nullable != null) {
172 MissingSchemaForClassException.check(factory().getRuntimeContext(), childClass);
173 MissingClassInLoadingStrategyException.check(factory().getRuntimeContext().getStrategy(), childClass);
174 throw IncorrectNestingException.create(message, args);
177 DataObjectSerializer eventStreamSerializer() {
178 if (eventStreamSerializer == null) {
179 eventStreamSerializer = factory().getEventStreamSerializer(getBindingClass());
181 return eventStreamSerializer;
185 public NormalizedNode<?, ?> serialize(final D data) {
186 final NormalizedNodeResult result = new NormalizedNodeResult();
187 // We create DOM stream writer which produces normalized nodes
188 final NormalizedNodeStreamWriter domWriter = ImmutableNormalizedNodeStreamWriter.from(result);
189 writeAsNormalizedNode(data, domWriter);
190 return result.getResult();
194 public void writeAsNormalizedNode(final D data, final NormalizedNodeStreamWriter writer) {
196 eventStreamSerializer().serialize(data, createWriter(writer));
197 } catch (final IOException e) {
198 throw new IllegalStateException("Failed to serialize Binding DTO",e);