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 org.opendaylight.yangtools.yang.common.Empty;
16 import org.opendaylight.yangtools.yang.common.QNameModule;
17 import org.opendaylight.yangtools.yang.common.Revision;
18 import org.opendaylight.yangtools.yang.common.UnresolvedQName.Unqualified;
19 import org.opendaylight.yangtools.yang.model.api.source.SourceIdentifier;
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.ModuleEffectiveStatement;
23 import org.opendaylight.yangtools.yang.model.api.stmt.ModuleStatement;
24 import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
25 import org.opendaylight.yangtools.yang.model.api.stmt.RevisionDateStatement;
26 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.ModuleQNameToPrefix;
27 import org.opendaylight.yangtools.yang.parser.spi.ParserNamespaces;
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;
37 final class RevisionImport {
38 private RevisionImport() {
42 static void onLinkageDeclared(final Mutable<Unqualified, ImportStatement, ImportEffectiveStatement> stmt) {
43 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
44 final Unqualified moduleName = stmt.getArgument();
45 final Revision revision = firstAttributeOf(stmt.declaredSubstatements(), RevisionDateStatement.class);
46 final Prerequisite<StmtContext<Unqualified, ModuleStatement, ModuleEffectiveStatement>> imported;
47 if (revision == null) {
48 imported = importAction.requiresCtx(stmt, ParserNamespaces.MODULE,
49 NamespaceKeyCriterion.latestRevisionModule(moduleName), SOURCE_LINKAGE);
51 imported = importAction.requiresCtx(stmt, ParserNamespaces.MODULE,
52 new SourceIdentifier(moduleName, revision), SOURCE_LINKAGE);
55 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(), SOURCE_LINKAGE);
57 importAction.apply(new InferenceAction() {
59 public void apply(final InferenceContext ctx) {
60 final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
62 final SourceIdentifier importedModuleIdentifier = stmt.namespaceItem(
63 ParserNamespaces.MODULECTX_TO_SOURCE, importedModule);
64 stmt.addToNs(ImportedVersionNamespace.INSTANCE, Empty.value(), importedModuleIdentifier);
66 final QNameModule mod = InferenceException.throwIfNull(
67 stmt.namespaceItem(ParserNamespaces.MODULECTX_TO_QNAME, importedModule), stmt,
68 "Failed to find module of %s", importedModule);
70 linkageTarget.resolve(ctx).addToNs(ParserNamespaces.IMPORTED_MODULE, importedModuleIdentifier,
72 final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
73 stmt.addToNs(ParserNamespaces.IMPORT_PREFIX_TO_MODULECTX, impPrefix, importedModule);
74 stmt.addToNs(ModuleQNameToPrefix.INSTANCE, mod, impPrefix);
78 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
79 if (failed.contains(imported)) {
80 throw new InferenceException(stmt, "Imported module [%s] was not found.",
81 moduleName.getLocalName());
87 static SourceIdentifier getImportedSourceIdentifier(final StmtContext<Unqualified, ImportStatement, ?> stmt) {
88 final var revision = findFirstDeclaredSubstatement(stmt, RevisionDateStatement.class);
89 return new SourceIdentifier(stmt.getArgument(), revision != null ? revision.getArgument() : null);