2 * Copyright (c) 2017 Pantheon Technologies, 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.yangtools.yang.parser.rfc7950.stmt.import_;
10 import static java.util.Objects.requireNonNull;
11 import static org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase.SOURCE_LINKAGE;
12 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.firstAttributeOf;
14 import com.google.common.base.MoreObjects.ToStringHelper;
16 import java.util.Collection;
17 import java.util.Optional;
18 import org.opendaylight.yangtools.concepts.SemVer;
19 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
20 import org.opendaylight.yangtools.yang.model.api.stmt.ImportStatement;
21 import org.opendaylight.yangtools.yang.model.api.stmt.NamespaceStatement;
22 import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
23 import org.opendaylight.yangtools.yang.model.repo.api.SemVerSourceIdentifier;
24 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
25 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.URIStringToImportPrefix;
26 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
27 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceKeyCriterion;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionModuleNamespace;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionNamespace;
34 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
35 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
36 import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToModuleCtx;
37 import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToSemVerSourceIdentifier;
38 import org.opendaylight.yangtools.yang.parser.spi.source.ImportedModuleContext;
39 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToSourceIdentifier;
41 final class SemanticVersionImport {
43 private abstract static class CompatibleCriterion extends NamespaceKeyCriterion<SemVerSourceIdentifier> {
44 private final String moduleName;
46 CompatibleCriterion(final String moduleName) {
47 this.moduleName = requireNonNull(moduleName);
51 public boolean match(final SemVerSourceIdentifier key) {
52 return moduleName.equals(key.getName());
56 protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
57 return toStringHelper.add("moduleName", moduleName);
61 private static final class NoVerCompatibleCriterion extends SemanticVersionImport.CompatibleCriterion {
62 NoVerCompatibleCriterion(final String moduleName) {
67 public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
68 final SemVerSourceIdentifier second) {
69 // TODO Auto-generated method stub
74 private static final class SemVerCompatibleCriterion extends SemanticVersionImport.CompatibleCriterion {
75 private final SemVer semVer;
77 SemVerCompatibleCriterion(final String moduleName, final SemVer semVer) {
79 this.semVer = requireNonNull(semVer);
83 public boolean match(final SemVerSourceIdentifier key) {
84 if (!super.match(key)) {
87 final Optional<SemVer> optKeyVer = key.getSemanticVersion();
88 if (!optKeyVer.isPresent()) {
92 final SemVer keyVer = optKeyVer.get();
93 if (semVer.getMajor() != keyVer.getMajor()) {
96 if (semVer.getMinor() > keyVer.getMinor()) {
99 return semVer.getMinor() < keyVer.getMinor() || semVer.getPatch() <= keyVer.getPatch();
103 public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
104 final SemVerSourceIdentifier second) {
105 return first.getSemanticVersion().get().compareTo(second.getSemanticVersion().get()) >= 0 ? first
110 protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
111 return super.addToStringAttributes(toStringHelper).add("version", semVer);
116 private SemanticVersionImport() {
117 throw new UnsupportedOperationException("Utility class");
120 static void onLinkageDeclared(
121 final Mutable<String, ImportStatement, EffectiveStatement<String, ImportStatement>> stmt) {
122 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
123 final String moduleName = stmt.getStatementArgument();
124 final SemVer semanticVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
125 final SemanticVersionImport.CompatibleCriterion criterion = semanticVersion == null
126 ? new NoVerCompatibleCriterion(moduleName)
127 : new SemVerCompatibleCriterion(moduleName, semanticVersion);
129 final Prerequisite<StmtContext<?, ?, ?>> imported = importAction.requiresCtx(stmt,
130 SemanticVersionModuleNamespace.class, criterion, SOURCE_LINKAGE);
131 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(),
134 importAction.apply(new InferenceAction() {
136 public void apply(final InferenceContext ctx) {
137 final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
138 final SemVer importedVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
139 final SourceIdentifier importedModuleIdentifier = importedModule.getFromNamespace(
140 ModuleCtxToSourceIdentifier.class, importedModule);
141 final SemVerSourceIdentifier semVerModuleIdentifier = createSemVerModuleIdentifier(
142 importedModuleIdentifier, importedVersion);
144 linkageTarget.resolve(ctx).addToNs(ImportedModuleContext.class, importedModuleIdentifier,
146 final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
147 stmt.addToNs(ImportPrefixToModuleCtx.class, impPrefix, importedModule);
148 stmt.addToNs(ImportPrefixToSemVerSourceIdentifier.class, impPrefix, semVerModuleIdentifier);
150 final URI modNs = firstAttributeOf(importedModule.declaredSubstatements(),
151 NamespaceStatement.class);
152 stmt.addToNs(URIStringToImportPrefix.class, modNs.toString(), impPrefix);
156 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
157 if (failed.contains(imported)) {
158 throw new InferenceException(stmt.getStatementSourceReference(),
159 "Unable to find module compatible with requested import [%s(%s)].", moduleName,
160 getRequestedImportVersionString(stmt));
166 private static Optional<SemVer> getRequestedImportVersion(final StmtContext<?, ?, ?> stmt) {
167 return Optional.ofNullable(stmt.getFromNamespace(SemanticVersionNamespace.class, stmt));
170 private static String getRequestedImportVersionString(final StmtContext<?, ?, ?> stmt) {
171 return getRequestedImportVersion(stmt).map(SemVer::toString).orElse("<any>");
174 private static SemVerSourceIdentifier createSemVerModuleIdentifier(
175 final SourceIdentifier importedModuleIdentifier, final SemVer semVer) {
176 return SemVerSourceIdentifier.create(importedModuleIdentifier.getName(),
177 importedModuleIdentifier.getRevision(), semVer);