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 org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase.SOURCE_LINKAGE;
11 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.findFirstDeclaredSubstatement;
12 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.firstAttributeOf;
14 import java.util.Collection;
15 import java.util.Optional;
16 import org.opendaylight.yangtools.yang.common.Empty;
17 import org.opendaylight.yangtools.yang.common.QNameModule;
18 import org.opendaylight.yangtools.yang.common.Revision;
19 import org.opendaylight.yangtools.yang.common.UnresolvedQName.Unqualified;
20 import org.opendaylight.yangtools.yang.model.api.stmt.ImportEffectiveStatement;
21 import org.opendaylight.yangtools.yang.model.api.stmt.ImportStatement;
22 import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
23 import org.opendaylight.yangtools.yang.model.api.stmt.RevisionDateStatement;
24 import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
25 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
26 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.ModuleQNameToPrefix;
27 import org.opendaylight.yangtools.yang.parser.spi.ModuleNamespace;
28 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
30 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
31 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
32 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
33 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceKeyCriterion;
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.ImportedModuleContext;
38 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
39 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToSourceIdentifier;
41 final class RevisionImport {
42 private RevisionImport() {
46 static void onLinkageDeclared(final Mutable<Unqualified, ImportStatement, ImportEffectiveStatement> stmt) {
47 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
48 final Prerequisite<StmtContext<?, ?, ?>> imported;
49 final Unqualified moduleName = stmt.getArgument();
50 final Revision revision = firstAttributeOf(stmt.declaredSubstatements(), RevisionDateStatement.class);
51 if (revision == null) {
52 imported = importAction.requiresCtx(stmt, ModuleNamespace.class,
53 NamespaceKeyCriterion.latestRevisionModule(moduleName), SOURCE_LINKAGE);
55 imported = importAction.requiresCtx(stmt, ModuleNamespace.class,
56 RevisionSourceIdentifier.create(moduleName, Optional.of(revision)), SOURCE_LINKAGE);
59 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(),
62 importAction.apply(new InferenceAction() {
64 public void apply(final InferenceContext ctx) {
65 final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
67 final SourceIdentifier importedModuleIdentifier =
68 stmt.getFromNamespace(ModuleCtxToSourceIdentifier.class, importedModule);
69 stmt.addToNs(ImportedVersionNamespace.class, Empty.value(), importedModuleIdentifier);
71 final QNameModule mod = InferenceException.throwIfNull(stmt.getFromNamespace(
72 ModuleCtxToModuleQName.class, importedModule), stmt, "Failed to find module of %s", importedModule);
74 linkageTarget.resolve(ctx).addToNs(ImportedModuleContext.class,
75 importedModuleIdentifier, importedModule);
76 final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
77 stmt.addToNs(ImportPrefixToModuleCtx.class, impPrefix, importedModule);
78 stmt.addToNs(ModuleQNameToPrefix.class, mod, impPrefix);
82 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
83 if (failed.contains(imported)) {
84 throw new InferenceException(stmt, "Imported module [%s] was not found.",
85 moduleName.getLocalName());
91 static SourceIdentifier getImportedSourceIdentifier(final StmtContext<Unqualified, ImportStatement, ?> stmt) {
92 final StmtContext<Revision, ?, ?> revision = findFirstDeclaredSubstatement(stmt,
93 RevisionDateStatement.class);
94 return revision == null ? RevisionSourceIdentifier.create(stmt.argument(), Optional.empty())
95 : RevisionSourceIdentifier.create(stmt.argument(), revision.argument());