2 * Copyright (c) 2021 PANTHEON.tech, s.r.o. 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.generator.impl.reactor;
10 import static com.google.common.base.Verify.verify;
11 import static com.google.common.base.Verify.verifyNotNull;
12 import static java.util.Objects.requireNonNull;
14 import com.google.common.collect.ImmutableList;
15 import java.util.Comparator;
16 import java.util.Iterator;
17 import java.util.List;
18 import java.util.function.Function;
19 import org.eclipse.jdt.annotation.NonNull;
20 import org.opendaylight.mdsal.binding.generator.impl.reactor.CollisionDomain.Member;
21 import org.opendaylight.mdsal.binding.generator.impl.rt.DefaultAugmentRuntimeType;
22 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
23 import org.opendaylight.mdsal.binding.model.api.YangSourceDefinition;
24 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilder;
25 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilderBase;
26 import org.opendaylight.mdsal.binding.model.ri.BindingTypes;
27 import org.opendaylight.mdsal.binding.runtime.api.AugmentRuntimeType;
28 import org.opendaylight.mdsal.binding.runtime.api.CaseRuntimeType;
29 import org.opendaylight.mdsal.binding.runtime.api.RuntimeType;
30 import org.opendaylight.yangtools.odlext.model.api.AugmentIdentifierEffectiveStatement;
31 import org.opendaylight.yangtools.yang.binding.contract.StatementNamespace;
32 import org.opendaylight.yangtools.yang.common.AbstractQName;
33 import org.opendaylight.yangtools.yang.common.QName;
34 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
35 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentEffectiveStatement;
36 import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceEffectiveStatement;
37 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeAwareEffectiveStatement;
38 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
39 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
42 * A generator corresponding to a {@code augment} statement. This class is further specialized for the two distinct uses
45 abstract class AbstractAugmentGenerator
46 extends AbstractCompositeGenerator<AugmentEffectiveStatement, AugmentRuntimeType> {
48 * Comparator comparing target path length. This is useful for quickly determining order the order in which two
49 * (or more) {@link AbstractAugmentGenerator}s need to be evaluated. This is necessary when augments are layered on
68 * Evaluating these in the order of increasing argument component count solves this without having to perform a full
72 * Another problem we are solving here is augmentation target stability, as the declared order in YANG text may
73 * change, which does not really change the semantics. If we only relied on length of argument, such a move would
74 * result in changing the results of {@link #createMember(CollisionDomain)} and make upgrades rather unpredictable.
75 * We solve this by using {@link QName#compareTo(QName)} to determine order.
77 static final Comparator<? super AbstractAugmentGenerator> COMPARATOR = (o1, o2) -> {
78 final Iterator<QName> thisIt = o1.statement().argument().getNodeIdentifiers().iterator();
79 final Iterator<QName> otherIt = o2.statement().argument().getNodeIdentifiers().iterator();
81 while (thisIt.hasNext()) {
82 if (!otherIt.hasNext()) {
86 final int comp = thisIt.next().compareTo(otherIt.next());
92 return otherIt.hasNext() ? -1 : 0;
95 private AbstractCompositeGenerator<?, ?> targetGen;
97 AbstractAugmentGenerator(final AugmentEffectiveStatement statement, final AbstractCompositeGenerator<?, ?> parent) {
98 super(statement, parent);
102 final StatementNamespace namespace() {
103 return StatementNamespace.AUGMENT;
107 final void pushToInference(final SchemaInferenceStack dataTree) {
108 dataTree.enterSchemaTree(statement().argument());
112 final AbstractQName localName() {
113 throw new UnsupportedOperationException();
117 ClassPlacement classPlacement() {
118 // if the target is a choice we are NOT creating an explicit augmentation, but we still need a phantom to
119 // reserve the appropriate package name
120 final AbstractCompositeGenerator<?, ?> target = targetGenerator();
121 return target instanceof ChoiceGenerator ? ClassPlacement.PHANTOM : super.classPlacement();
125 final Member createMember(final CollisionDomain domain) {
126 final AbstractQName explicitIdentifier = statement()
127 .findFirstEffectiveSubstatementArgument(AugmentIdentifierEffectiveStatement.class).orElse(null);
128 if (explicitIdentifier != null) {
129 return domain.addPrimary(this, new CamelCaseNamingStrategy(StatementNamespace.AUGMENT, explicitIdentifier));
132 final Member target = targetGenerator().getMember();
134 for (Generator gen : getParent()) {
138 if (gen instanceof AbstractAugmentGenerator aug && target.equalRoot(aug.targetGenerator().getMember())) {
143 return domain.addSecondary(this, target, String.valueOf(offset), statement().argument());
147 final GeneratedType createTypeImpl(final TypeBuilderFactory builderFactory) {
148 final GeneratedTypeBuilder builder = builderFactory.newGeneratedTypeBuilder(typeName());
150 YangSourceDefinition.of(currentModule().statement(), statement()).ifPresent(builder::setYangSourceDefinition);
151 builder.addImplementsType(BindingTypes.augmentation(targetGenerator().getGeneratedType(builderFactory)));
152 addUsesInterfaces(builder, builderFactory);
153 addConcreteInterfaceMethods(builder);
155 addGetterMethods(builder, builderFactory);
156 annotateDeprecatedIfNecessary(builder);
158 return builder.build();
161 boolean matchesInstantiated(final AugmentEffectiveStatement statement) {
162 return statement().equals(statement);
165 final void fillRuntimeCasesIn(final AugmentResolver resolver, final ChoiceEffectiveStatement stmt,
166 final List<CaseRuntimeType> toList) {
167 toList.addAll(createBuilder(effectiveIn(stmt)).populate(resolver, this).getCaseChilden());
170 final @NonNull AugmentRuntimeType runtimeTypeIn(final AugmentResolver resolver,
171 final EffectiveStatement<?, ?> stmt) {
172 verify(stmt instanceof SchemaTreeAwareEffectiveStatement, "Unexpected target statement %s", stmt);
173 return verifyNotNull(createInternalRuntimeType(resolver,
174 effectiveIn((SchemaTreeAwareEffectiveStatement<?, ?>) stmt)));
177 abstract @NonNull TargetAugmentEffectiveStatement effectiveIn(SchemaTreeAwareEffectiveStatement<?, ?> target);
179 final @NonNull TargetAugmentEffectiveStatement effectiveIn(final SchemaTreeAwareEffectiveStatement<?, ?> target,
180 final Function<QName, QName> transform) {
181 final var augment = statement();
182 final var stmts = augment.effectiveSubstatements();
183 final var builder = ImmutableList.<EffectiveStatement<?, ?>>builderWithExpectedSize(stmts.size());
184 for (var child : stmts) {
185 if (child instanceof SchemaTreeEffectiveStatement<?> schemaTreeChild) {
186 final var qname = schemaTreeChild.argument();
187 // Note: a match in target may be missing -- for example if it was 'deviate unsupported'
188 target.findSchemaTreeNode(transform.apply(qname)).ifPresent(builder::add);
193 return new TargetAugmentEffectiveStatement(augment, target, builder.build());
197 final void addAsGetterMethod(final GeneratedTypeBuilderBase<?> builder, final TypeBuilderFactory builderFactory) {
198 // Augments are never added as getters, as they are handled via Augmentable mechanics
202 CompositeRuntimeTypeBuilder<AugmentEffectiveStatement, AugmentRuntimeType> createBuilder(
203 final AugmentEffectiveStatement statement) {
204 return new CompositeRuntimeTypeBuilder<>(statement) {
206 AugmentRuntimeType build(final GeneratedType type, final AugmentEffectiveStatement statement,
207 final List<RuntimeType> children, final List<AugmentRuntimeType> augments) {
208 // 'augment' cannot be targeted by augment
209 verify(augments.isEmpty(), "Unexpected augments %s", augments);
210 return new DefaultAugmentRuntimeType(type, statement, children);
215 final void setTargetGenerator(final AbstractCompositeGenerator<?, ?> targetGenerator) {
216 verify(targetGen == null, "Attempted to relink %s, already have target %s", this, targetGen);
217 targetGen = requireNonNull(targetGenerator);
220 final @NonNull AbstractCompositeGenerator<?, ?> targetGenerator() {
221 return verifyNotNull(targetGen, "No target for %s", this);