2 * Copyright (c) 2015 Cisco Systems, Inc. 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.stmt.rfc6020;
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.ModelProcessingPhase.SOURCE_PRE_LINKAGE;
13 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.findFirstDeclaredSubstatement;
14 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.firstAttributeOf;
16 import com.google.common.base.MoreObjects.ToStringHelper;
17 import com.google.common.base.Verify;
19 import java.util.Collection;
20 import java.util.Date;
21 import java.util.Optional;
22 import org.opendaylight.yangtools.concepts.SemVer;
23 import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
24 import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
25 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
26 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
27 import org.opendaylight.yangtools.yang.model.api.stmt.ImportStatement;
28 import org.opendaylight.yangtools.yang.model.api.stmt.NamespaceStatement;
29 import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
30 import org.opendaylight.yangtools.yang.model.api.stmt.RevisionDateStatement;
31 import org.opendaylight.yangtools.yang.model.repo.api.RevisionSourceIdentifier;
32 import org.opendaylight.yangtools.yang.model.repo.api.SemVerSourceIdentifier;
33 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
34 import org.opendaylight.yangtools.yang.model.util.ModuleIdentifierImpl;
35 import org.opendaylight.yangtools.yang.parser.spi.ModuleNamespace;
36 import org.opendaylight.yangtools.yang.parser.spi.PreLinkageModuleNamespace;
37 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
38 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
39 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
40 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
41 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
42 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
43 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceKeyCriterion;
44 import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionModuleNamespace;
45 import org.opendaylight.yangtools.yang.parser.spi.meta.SemanticVersionNamespace;
46 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
47 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
48 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
49 import org.opendaylight.yangtools.yang.parser.spi.source.ImpPrefixToNamespace;
50 import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToModuleCtx;
51 import org.opendaylight.yangtools.yang.parser.spi.source.ImportPrefixToSemVerSourceIdentifier;
52 import org.opendaylight.yangtools.yang.parser.spi.source.ImportedModuleContext;
53 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleIdentifier;
54 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleNameToNamespace;
55 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
56 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.ImportEffectiveStatementImpl;
58 public class ImportStatementDefinition extends
59 AbstractStatementSupport<String, ImportStatement, EffectiveStatement<String, ImportStatement>> {
60 private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator
61 .builder(YangStmtMapping.IMPORT)
62 .addMandatory(YangStmtMapping.PREFIX)
63 .addOptional(YangStmtMapping.REVISION_DATE)
64 .addOptional(SupportedExtensionsMapping.OPENCONFIG_VERSION)
67 public ImportStatementDefinition() {
68 super(YangStmtMapping.IMPORT);
72 public String parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
77 public ImportStatement createDeclared(final StmtContext<String, ImportStatement, ?> ctx) {
78 return new ImportStatementImpl(ctx);
82 public EffectiveStatement<String, ImportStatement> createEffective(
83 final StmtContext<String, ImportStatement, EffectiveStatement<String, ImportStatement>> ctx) {
84 return new ImportEffectiveStatementImpl(ctx);
88 public void onPreLinkageDeclared(final Mutable<String, ImportStatement,
89 EffectiveStatement<String, ImportStatement>> stmt) {
91 * Add ModuleIdentifier of a module which is required by this module.
92 * Based on this information, required modules are searched from library
95 stmt.addRequiredSource(RevisionImport.getImportedSourceIdentifier(stmt));
97 final String moduleName = stmt.getStatementArgument();
98 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_PRE_LINKAGE);
99 final Prerequisite<StmtContext<?, ?, ?>> imported = importAction.requiresCtx(stmt,
100 PreLinkageModuleNamespace.class, moduleName, SOURCE_PRE_LINKAGE);
101 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction
102 .mutatesCtx(stmt.getRoot(), SOURCE_PRE_LINKAGE);
104 importAction.apply(new InferenceAction() {
106 public void apply(final InferenceContext ctx) {
107 final StmtContext<?, ?, ?> importedModuleContext = imported.resolve(ctx);
108 Verify.verify(moduleName.equals(importedModuleContext.getStatementArgument()));
109 final URI importedModuleNamespace = importedModuleContext.getFromNamespace(ModuleNameToNamespace.class,
111 Verify.verifyNotNull(importedModuleNamespace);
112 final String impPrefix = SourceException.throwIfNull(
113 firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class),
114 stmt.getStatementSourceReference(), "Missing prefix statement");
116 stmt.addToNs(ImpPrefixToNamespace.class, impPrefix, importedModuleNamespace);
120 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
121 InferenceException.throwIf(failed.contains(imported), stmt.getStatementSourceReference(),
122 "Imported module [%s] was not found.", moduleName);
128 public void onLinkageDeclared(
129 final Mutable<String, ImportStatement, EffectiveStatement<String, ImportStatement>> stmt) {
130 if (stmt.isEnabledSemanticVersioning()) {
131 SemanticVersionImport.onLinkageDeclared(stmt);
133 RevisionImport.onLinkageDeclared(stmt);
138 protected SubstatementValidator getSubstatementValidator() {
139 return SUBSTATEMENT_VALIDATOR;
142 private static class RevisionImport {
144 private RevisionImport() {
145 throw new UnsupportedOperationException("Utility class");
148 private static void onLinkageDeclared(
149 final Mutable<String, ImportStatement, EffectiveStatement<String, ImportStatement>> stmt) {
150 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
151 final Prerequisite<StmtContext<?, ?, ?>> imported;
152 final String moduleName = stmt.getStatementArgument();
153 final Date revision = firstAttributeOf(stmt.declaredSubstatements(), RevisionDateStatement.class);
154 if (revision == null) {
155 imported = importAction.requiresCtx(stmt, ModuleNamespace.class,
156 NamespaceKeyCriterion.latestRevisionModule(moduleName), SOURCE_LINKAGE);
158 imported = importAction.requiresCtx(stmt, ModuleNamespace.class,
159 ModuleIdentifierImpl.create(moduleName, Optional.of(revision)), SOURCE_LINKAGE);
162 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(),
165 importAction.apply(new InferenceAction() {
167 public void apply(final InferenceContext ctx) {
168 final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
170 linkageTarget.resolve(ctx).addToNs(ImportedModuleContext.class,
171 stmt.getFromNamespace(ModuleCtxToModuleIdentifier.class, importedModule), importedModule);
172 final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
173 final URI modNs = firstAttributeOf(importedModule.declaredSubstatements(),
174 NamespaceStatement.class);
175 stmt.addToNs(ImportPrefixToModuleCtx.class, impPrefix, importedModule);
176 stmt.addToNs(URIStringToImpPrefix.class, modNs.toString(), impPrefix);
180 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
181 if (failed.contains(imported)) {
182 throw new InferenceException(stmt.getStatementSourceReference(),
183 "Imported module [%s] was not found.", moduleName);
189 static SourceIdentifier getImportedSourceIdentifier(final StmtContext<String, ImportStatement, ?> stmt) {
190 final StmtContext<Date, ?, ?> revision = findFirstDeclaredSubstatement(stmt, RevisionDateStatement.class);
191 return revision == null ? RevisionSourceIdentifier.create(stmt.getStatementArgument())
192 : RevisionSourceIdentifier.create(stmt.getStatementArgument(), revision.rawStatementArgument());
196 private static class SemanticVersionImport {
198 private abstract static class CompatibleCriterion extends NamespaceKeyCriterion<SemVerSourceIdentifier> {
199 private final String moduleName;
201 CompatibleCriterion(final String moduleName) {
202 this.moduleName = requireNonNull(moduleName);
206 public boolean match(final SemVerSourceIdentifier key) {
207 return moduleName.equals(key.getName());
211 protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
212 return toStringHelper.add("moduleName", moduleName);
216 private static final class NoVerCompatibleCriterion extends CompatibleCriterion {
217 NoVerCompatibleCriterion(final String moduleName) {
222 public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
223 final SemVerSourceIdentifier second) {
224 // TODO Auto-generated method stub
229 private static final class SemVerCompatibleCriterion extends CompatibleCriterion {
230 private final SemVer semVer;
232 SemVerCompatibleCriterion(final String moduleName, final SemVer semVer) {
234 this.semVer = requireNonNull(semVer);
238 public boolean match(final SemVerSourceIdentifier key) {
239 if (!super.match(key)) {
242 final Optional<SemVer> optKeyVer = key.getSemanticVersion();
243 if (!optKeyVer.isPresent()) {
247 final SemVer keyVer = optKeyVer.get();
248 if (semVer.getMajor() != keyVer.getMajor()) {
251 if (semVer.getMinor() > keyVer.getMinor()) {
254 return semVer.getMinor() < keyVer.getMinor() || semVer.getPatch() <= keyVer.getPatch();
258 public SemVerSourceIdentifier select(final SemVerSourceIdentifier first,
259 final SemVerSourceIdentifier second) {
260 return first.getSemanticVersion().get().compareTo(second.getSemanticVersion().get()) >= 0 ? first
265 protected ToStringHelper addToStringAttributes(final ToStringHelper toStringHelper) {
266 return super.addToStringAttributes(toStringHelper).add("version", semVer);
271 private SemanticVersionImport() {
272 throw new UnsupportedOperationException("Utility class");
275 private static void onLinkageDeclared(
276 final Mutable<String, ImportStatement, EffectiveStatement<String, ImportStatement>> stmt) {
277 final ModelActionBuilder importAction = stmt.newInferenceAction(SOURCE_LINKAGE);
278 final String moduleName = stmt.getStatementArgument();
279 final SemVer semanticVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
280 final CompatibleCriterion criterion = semanticVersion == null ? new NoVerCompatibleCriterion(moduleName)
281 : new SemVerCompatibleCriterion(moduleName, semanticVersion);
283 final Prerequisite<StmtContext<?, ?, ?>> imported = importAction.requiresCtx(stmt,
284 SemanticVersionModuleNamespace.class, criterion, SOURCE_LINKAGE);
285 final Prerequisite<Mutable<?, ?, ?>> linkageTarget = importAction.mutatesCtx(stmt.getRoot(),
288 importAction.apply(new InferenceAction() {
290 public void apply(final InferenceContext ctx) {
291 final StmtContext<?, ?, ?> importedModule = imported.resolve(ctx);
292 final SemVer importedVersion = stmt.getFromNamespace(SemanticVersionNamespace.class, stmt);
293 final ModuleIdentifier importedModuleIdentifier = importedModule.getFromNamespace(
294 ModuleCtxToModuleIdentifier.class, importedModule);
295 final SemVerSourceIdentifier semVerModuleIdentifier = createSemVerModuleIdentifier(
296 importedModuleIdentifier, importedVersion);
298 linkageTarget.resolve(ctx).addToNs(ImportedModuleContext.class, importedModuleIdentifier,
300 final String impPrefix = firstAttributeOf(stmt.declaredSubstatements(), PrefixStatement.class);
301 stmt.addToNs(ImportPrefixToModuleCtx.class, impPrefix, importedModule);
302 stmt.addToNs(ImportPrefixToSemVerSourceIdentifier.class, impPrefix, semVerModuleIdentifier);
304 final URI modNs = firstAttributeOf(importedModule.declaredSubstatements(),
305 NamespaceStatement.class);
306 stmt.addToNs(URIStringToImpPrefix.class, modNs.toString(), impPrefix);
310 public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
311 if (failed.contains(imported)) {
312 throw new InferenceException(stmt.getStatementSourceReference(),
313 "Unable to find module compatible with requested import [%s(%s)].", moduleName,
314 getRequestedImportVersionString(stmt));
320 private static Optional<SemVer> getRequestedImportVersion(final StmtContext<?, ?, ?> stmt) {
321 return Optional.ofNullable(stmt.getFromNamespace(SemanticVersionNamespace.class, stmt));
324 private static String getRequestedImportVersionString(final StmtContext<?, ?, ?> stmt) {
325 return getRequestedImportVersion(stmt).map(SemVer::toString).orElse("<any>");
328 private static SemVerSourceIdentifier createSemVerModuleIdentifier(
329 final ModuleIdentifier importedModuleIdentifier, final SemVer semVer) {
330 final String formattedRevision = importedModuleIdentifier.getRevision().map(
331 date -> SimpleDateFormatUtil.getRevisionFormat().format(date))
333 return SemVerSourceIdentifier.create(importedModuleIdentifier.getName(), formattedRevision, semVer);