Examples with DuplicateTransformer io.fabric8.maven.DuplicateTransformer used on opensource projects

Example 1 with DuplicateTransformer

use of io.fabric8.maven.DuplicateTransformer in project fabric8 by jboss-fuse.

the class AetherBasedResolver method collectDependencies.

protected DependencyNode collectDependencies(Artifact root, String pomVersion, final Filter<Dependency> excludeDependencyFilter) throws RepositoryException, IOException {
    final DefaultRepositorySystemSession session = newSession();
    try {
        List<RemoteRepository> repos = selectRepositories();
        assignProxyAndMirrors(repos);
        ArtifactDescriptorResult artifactDescriptorResult = m_repoSystem.readArtifactDescriptor(session, new ArtifactDescriptorRequest(root, repos, null));
        repos.addAll(artifactDescriptorResult.getRepositories());
        Dependency rootDependency = new Dependency(root, null);
        List<Dependency> dependencies = artifactDescriptorResult.getDependencies();
        final DefaultDependencyNode rootNode = new DefaultDependencyNode(rootDependency);
        GenericVersionScheme versionScheme = new GenericVersionScheme();
        rootNode.setVersion(versionScheme.parseVersion(pomVersion));
        rootNode.setVersionConstraint(versionScheme.parseVersionConstraint(pomVersion));
        DependencyNode pomNode = rootNode;
        // final Filter<Dependency> shouldExclude = Filters.or(DependencyFilters.testScopeFilter, excludeDependencyFilter, new NewerVersionExistsFilter(rootNode));
        final Filter<Dependency> shouldExclude = Filters.or(Arrays.asList(DependencyFilters.testScopeFilter, excludeDependencyFilter));
        DependencySelector dependencySelector = new AndDependencySelector(new ScopeDependencySelector("test"), new ExclusionDependencySelector(), new DependencySelector() {

            @Override
            public DependencySelector deriveChildSelector(DependencyCollectionContext context) {
                return this;
            }

            @Override
            public boolean selectDependency(Dependency dependency) {
                try {
                    return !DependencyFilters.matches(dependency, shouldExclude);
                } catch (Exception e) {
                    failedToMakeDependencyTree(dependency, e);
                    return false;
                }
            }
        });
        session.setDependencySelector(dependencySelector);
        // work on the root dependency directly?
        if (true) {
            for (Dependency dependency : dependencies) {
                DependencyNode node = resolveDependencies(session, repos, pomNode, dependency, shouldExclude);
                if (node != null) {
                    pomNode.getChildren().add(node);
                }
            }
        } else {
            DependencyNode node = resolveDependencies(session, repos, pomNode, rootDependency, shouldExclude);
            if (node != null) {
                pomNode = node;
            }
        }
        // now lets transform the dependency tree to remove different versions for the same artifact
        final DependencyGraphTransformationContext tranformContext = new DependencyGraphTransformationContext() {

            Map<Object, Object> map = new HashMap<>();

            public RepositorySystemSession getSession() {
                return session;
            }

            public Object get(Object key) {
                return map.get(key);
            }

            public Object put(Object key, Object value) {
                return map.put(key, value);
            }
        };
        DependencyGraphTransformer transformer = new ReplaceConflictingVersionResolver();
        pomNode = transformer.transformGraph(pomNode, tranformContext);
        transformer = new DuplicateTransformer();
        pomNode = transformer.transformGraph(pomNode, tranformContext);
        return pomNode;
    } finally {
        releaseSession(session);
    }
}