-/*
- * Copyright (c) 2017 Pantheon Technologies, s.r.o. and others. All rights reserved.
- *
- * This program and the accompanying materials are made available under the
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,
- * and is available at http://www.eclipse.org/legal/epl-v10.html
- */
-package org.opendaylight.yangtools.yang.parser.rfc7950.stmt.import_;
-
-import static java.util.Objects.requireNonNull;
-import static org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase.SOURCE_LINKAGE;
-import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.firstAttributeOf;
-
-import com.google.common.base.MoreObjects.ToStringHelper;
-import java.util.Collection;
-import java.util.Optional;
-import org.opendaylight.yangtools.concepts.SemVer;
-import org.opendaylight.yangtools.yang.common.Empty;
-import org.opendaylight.yangtools.yang.common.QNameModule;
-import org.opendaylight.yangtools.yang.model.api.stmt.ImportEffectiveStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.ImportStatement;
-import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
-import org.opendaylight.yangtools.yang.model.repo.api.SemVerSourceIdentifier;
-import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
-import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.ModuleQNameToPrefix;
-import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
-import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceKeyCriterion;
-import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionModuleNamespace;
-import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionNamespace;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
-import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
-import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToModuleCtx;
-import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToSemVerSourceIdentifier;
-import org.opendaylight.yangtools.yang.parser.spi.source.ImportedModuleContext;
-import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
-import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToSourceIdentifier;
-
-final class SemanticVersionImport {
-
- private abstract static class CompatibleCriterion extends NamespaceKeyCriterion<SemVerSourceIdentifier> {
- private final String moduleName;
-
- CompatibleCriterion(final String moduleName) {
- this.moduleName = requireNonNull(moduleName);
- }
-
- @Override
- public boolean match(final SemVerSourceIdentifier key) {
- return moduleName.equals(key.getName());
- }
-
- @Override
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- return toStringHelper.add("moduleName", moduleName);
- }
- }
-
- private static final class NoVerCompatibleCriterion extends SemanticVersionImport.CompatibleCriterion {
- NoVerCompatibleCriterion(final String moduleName) {
- super(moduleName);
- }
-
- @Override
- public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
- final SemVerSourceIdentifier second) {
- // TODO Auto-generated method stub
- return null;
- }
- }
-
- private static final class SemVerCompatibleCriterion extends SemanticVersionImport.CompatibleCriterion {
- private final SemVer semVer;
-
- SemVerCompatibleCriterion(final String moduleName, final SemVer semVer) {
- super(moduleName);
- this.semVer = requireNonNull(semVer);
- }
-
- @Override
- public boolean match(final SemVerSourceIdentifier key) {
- if (!super.match(key)) {
- return false;
- }
- final Optional<SemVer> optKeyVer = key.getSemanticVersion();
- if (!optKeyVer.isPresent()) {
- return false;
- }
-
- final SemVer keyVer = optKeyVer.get();
- if (semVer.getMajor() != keyVer.getMajor()) {
- return false;
- }
- if (semVer.getMinor() > keyVer.getMinor()) {
- return false;
- }
- return semVer.getMinor() < keyVer.getMinor() || semVer.getPatch() <= keyVer.getPatch();
- }
-
- @Override
- public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
- final SemVerSourceIdentifier second) {
- return first.getSemanticVersion().get().compareTo(second.getSemanticVersion().get()) >= 0 ? first
- : second;
- }
-
- @Override
- protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
- return super.addToStringAttributes(toStringHelper).add("version", semVer);
- }
- }
-
- private SemanticVersionImport() {
- // Hidden on purpose
- }
-
- static void onLinkageDeclared(final Mutable<String, ImportStatement, ImportEffectiveStatement> stmt) {
- final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
- final String moduleName = stmt.getArgument();
- final SemVer semanticVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
- final SemanticVersionImport.CompatibleCriterion criterion = semanticVersion == null
- ? new NoVerCompatibleCriterion(moduleName)
- : new SemVerCompatibleCriterion(moduleName, semanticVersion);
-
- final Prerequisite<StmtContext<?, ?, ?>> imported = importAction.requiresCtx(stmt,
- SemanticVersionModuleNamespace.class, criterion, SOURCE_LINKAGE);
- final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(), SOURCE_LINKAGE);
-
- importAction.apply(new InferenceAction() {
- @Override
- public void apply(final InferenceContext ctx) {
- final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
- final SemVer importedVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
- final SourceIdentifier importedModuleIdentifier = importedModule.getFromNamespace(
- ModuleCtxToSourceIdentifier.class, importedModule);
- final SemVerSourceIdentifier semVerModuleIdentifier = createSemVerModuleIdentifier(
- importedModuleIdentifier, importedVersion);
- stmt.addToNs(ImportedVersionNamespace.class, Empty.value(), semVerModuleIdentifier);
-
- linkageTarget.resolve(ctx).addToNs(ImportedModuleContext.class, importedModuleIdentifier,
- importedModule);
- final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
- stmt.addToNs(ImportPrefixToModuleCtx.class, impPrefix, importedModule);
- stmt.addToNs(ImportPrefixToSemVerSourceIdentifier.class, impPrefix, semVerModuleIdentifier);
-
- final QNameModule mod = InferenceException.throwIfNull(stmt.getFromNamespace(
- ModuleCtxToModuleQName.class, importedModule), stmt, "Failed to find module of %s", importedModule);
- stmt.addToNs(ModuleQNameToPrefix.class, mod, impPrefix);
- }
-
- @Override
- public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
- if (failed.contains(imported)) {
- throw new InferenceException(stmt,
- "Unable to find module compatible with requested import [%s(%s)].", moduleName,
- getRequestedImportVersionString(stmt));
- }
- }
- });
- }
-
- private static Optional<SemVer> getRequestedImportVersion(final StmtContext<?, ?, ?> stmt) {
- return Optional.ofNullable(stmt.getFromNamespace(SemanticVersionNamespace.class, stmt));
- }
-
- private static String getRequestedImportVersionString(final StmtContext<?, ?, ?> stmt) {
- return getRequestedImportVersion(stmt).map(SemVer::toString).orElse("<any>");
- }
-
- private static SemVerSourceIdentifier createSemVerModuleIdentifier(
- final SourceIdentifier importedModuleIdentifier, final SemVer semVer) {
- return SemVerSourceIdentifier.create(importedModuleIdentifier.getName(),
- importedModuleIdentifier.getRevision(), semVer);
- }
-}