2 * Copyright (c) 2016 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.repo;
10 import java.util.Collection;
12 import java.util.Optional;
13 import org.opendaylight.yangtools.concepts.SemVer;
14 import org.opendaylight.yangtools.yang.model.api.ModuleImport;
15 import org.opendaylight.yangtools.yang.model.repo.api.SemVerSourceIdentifier;
16 import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
17 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangModelDependencyInfo;
19 final class SemVerDependencyResolver extends DependencyResolver {
21 protected SemVerDependencyResolver(final Map<SourceIdentifier, YangModelDependencyInfo> depInfo) {
25 protected static SourceIdentifier findCompatibleVersion(final Iterable<SourceIdentifier> haystack,
26 final ModuleImport mi) {
27 final String requestedModuleName = mi.getModuleName();
28 for (SourceIdentifier r : haystack) {
29 if (requestedModuleName.equals(r.getName())
30 && isCompatible(((SemVerSourceIdentifier) r).getSemanticVersion(), mi.getSemanticVersion())) {
38 private static boolean isCompatible(final Optional<SemVer> moduleSemVer, final Optional<SemVer> importSemVer) {
39 if (importSemVer.isEmpty()) {
40 // Import does not care about the version
43 if (moduleSemVer.isEmpty()) {
44 // Modules which do not declare a semantic version are incompatible with imports which do
48 final SemVer modVer = moduleSemVer.get();
49 final SemVer impVer = importSemVer.get();
50 return modVer.getMajor() == impVer.getMajor() && modVer.compareTo(impVer) >= 0;
54 protected boolean isKnown(final Collection<SourceIdentifier> haystack, final ModuleImport mi) {
55 final SemVerSourceIdentifier msi = SemVerSourceIdentifier.create(mi.getModuleName(), mi.getRevision(),
56 mi.getSemanticVersion().orElse(null));
59 if (haystack.contains(msi)) {
63 // Slow revision-less walk
64 return findCompatibleVersion(haystack, mi) != null;
67 public static SemVerDependencyResolver create(final Map<SourceIdentifier, YangModelDependencyInfo> depInfo) {
68 return new SemVerDependencyResolver(depInfo);