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 java.util.Comparator;
15 import java.util.Iterator;
16 import java.util.List;
17 import org.eclipse.jdt.annotation.NonNull;
18 import org.opendaylight.mdsal.binding.generator.impl.reactor.CollisionDomain.Member;
19 import org.opendaylight.mdsal.binding.generator.impl.rt.DefaultAugmentRuntimeType;
20 import org.opendaylight.mdsal.binding.model.api.GeneratedType;
21 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilder;
22 import org.opendaylight.mdsal.binding.model.api.type.builder.GeneratedTypeBuilderBase;
23 import org.opendaylight.mdsal.binding.model.ri.BindingTypes;
24 import org.opendaylight.mdsal.binding.runtime.api.AugmentRuntimeType;
25 import org.opendaylight.mdsal.binding.runtime.api.CaseRuntimeType;
26 import org.opendaylight.mdsal.binding.runtime.api.RuntimeType;
27 import org.opendaylight.yangtools.odlext.model.api.AugmentIdentifierEffectiveStatement;
28 import org.opendaylight.yangtools.yang.common.AbstractQName;
29 import org.opendaylight.yangtools.yang.common.QName;
30 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
31 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentEffectiveStatement;
32 import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceEffectiveStatement;
33 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeAwareEffectiveStatement;
34 import org.opendaylight.yangtools.yang.model.util.SchemaInferenceStack;
37 * A generator corresponding to a {@code augment} statement. This class is further specialized for the two distinct uses
40 abstract class AbstractAugmentGenerator
41 extends AbstractCompositeGenerator<AugmentEffectiveStatement, AugmentRuntimeType> {
43 * Comparator comparing target path length. This is useful for quickly determining order the order in which two
44 * (or more) {@link AbstractAugmentGenerator}s need to be evaluated. This is necessary when augments are layered on
63 * Evaluating these in the order of increasing argument component count solves this without having to perform a full
67 * Another problem we are solving here is augmentation target stability, as the declared order in YANG text may
68 * change, which does not really change the semantics. If we only relied on length of argument, such a move would
69 * result in changing the results of {@link #createMember(CollisionDomain)} and make upgrades rather unpredictable.
70 * We solve this by using {@link QName#compareTo(QName)} to determine order.
72 static final Comparator<? super AbstractAugmentGenerator> COMPARATOR = (o1, o2) -> {
73 final Iterator<QName> thisIt = o1.statement().argument().getNodeIdentifiers().iterator();
74 final Iterator<QName> otherIt = o2.statement().argument().getNodeIdentifiers().iterator();
76 while (thisIt.hasNext()) {
77 if (!otherIt.hasNext()) {
81 final int comp = thisIt.next().compareTo(otherIt.next());
87 return otherIt.hasNext() ? -1 : 0;
90 private AbstractCompositeGenerator<?, ?> targetGen;
92 AbstractAugmentGenerator(final AugmentEffectiveStatement statement, final AbstractCompositeGenerator<?, ?> parent) {
93 super(statement, parent);
97 final void pushToInference(final SchemaInferenceStack dataTree) {
98 dataTree.enterSchemaTree(statement().argument());
102 final AbstractQName localName() {
103 throw new UnsupportedOperationException();
107 ClassPlacement classPlacement() {
108 // if the target is a choice we are NOT creating an explicit augmentation, but we still need a phantom to
109 // reserve the appropriate package name
110 final AbstractCompositeGenerator<?, ?> target = targetGenerator();
111 return target instanceof ChoiceGenerator ? ClassPlacement.PHANTOM : super.classPlacement();
115 final Member createMember(final CollisionDomain domain) {
116 final AbstractQName explicitIdentifier = statement()
117 .findFirstEffectiveSubstatementArgument(AugmentIdentifierEffectiveStatement.class).orElse(null);
118 if (explicitIdentifier != null) {
119 return domain.addPrimary(this, new CamelCaseNamingStrategy(StatementNamespace.DEFAULT, explicitIdentifier));
122 final Member target = targetGenerator().getMember();
124 for (Generator gen : getParent()) {
128 if (gen instanceof AbstractAugmentGenerator
129 && target.equalRoot(((AbstractAugmentGenerator) gen).targetGenerator().getMember())) {
134 return domain.addSecondary(this, target, String.valueOf(offset), statement().argument());
138 final GeneratedType createTypeImpl(final TypeBuilderFactory builderFactory) {
139 final GeneratedTypeBuilder builder = builderFactory.newGeneratedTypeBuilder(typeName());
141 builder.addImplementsType(BindingTypes.augmentation(targetGenerator().getGeneratedType(builderFactory)));
142 addUsesInterfaces(builder, builderFactory);
143 addConcreteInterfaceMethods(builder);
145 addGetterMethods(builder, builderFactory);
146 annotateDeprecatedIfNecessary(builder);
148 return builder.build();
151 boolean matchesInstantiated(final AugmentEffectiveStatement statement) {
152 return statement().equals(statement);
155 final void fillRuntimeCasesIn(final AugmentResolver resolver, final ChoiceEffectiveStatement stmt,
156 final List<CaseRuntimeType> toList) {
157 toList.addAll(createBuilder(effectiveIn(stmt)).populate(resolver, this).getCaseChilden());
160 final @NonNull AugmentRuntimeType runtimeTypeIn(final AugmentResolver resolver,
161 final EffectiveStatement<?, ?> stmt) {
162 verify(stmt instanceof SchemaTreeAwareEffectiveStatement, "Unexpected target statement %s", stmt);
163 return verifyNotNull(createInternalRuntimeType(resolver,
164 effectiveIn((SchemaTreeAwareEffectiveStatement<?, ?>) stmt)));
167 abstract @NonNull TargetAugmentEffectiveStatement effectiveIn(SchemaTreeAwareEffectiveStatement<?, ?> target);
170 final void addAsGetterMethod(final GeneratedTypeBuilderBase<?> builder, final TypeBuilderFactory builderFactory) {
171 // Augments are never added as getters, as they are handled via Augmentable mechanics
175 CompositeRuntimeTypeBuilder<AugmentEffectiveStatement, AugmentRuntimeType> createBuilder(
176 final AugmentEffectiveStatement statement) {
177 return new CompositeRuntimeTypeBuilder<>(statement) {
179 AugmentRuntimeType build(final GeneratedType type, final AugmentEffectiveStatement statement,
180 final List<RuntimeType> children, final List<AugmentRuntimeType> augments) {
181 // 'augment' cannot be targeted by augment
182 verify(augments.isEmpty(), "Unexpected augments %s", augments);
183 return new DefaultAugmentRuntimeType(type, statement, children);
188 final void setTargetGenerator(final AbstractCompositeGenerator<?, ?> targetGenerator) {
189 verify(targetGen == null, "Attempted to relink %s, already have target %s", this, targetGen);
190 targetGen = requireNonNull(targetGenerator);
193 final @NonNull AbstractCompositeGenerator<?, ?> targetGenerator() {
194 return verifyNotNull(targetGen, "No target for %s", this);