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[MRESOLVER-518] Version selector improvements (apache#450)
Version selector improvements: * introduce strategy how to select "winner" (so far it was cemented "nearest") and optionally perform some enforcements * supplier retains same behaviour as before Big fat note: this is NOT to alter Maven4 behaviour, but to make Resolver 2 more versatile for example for "diagnostic purposes" (while Maven may still benefit from these changes as well, by having some "strict version strategy" mode for example). --- https://issues.apache.org/jira/browse/MRESOLVER-518
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...src/main/java/org/apache/maven/resolver/examples/GetDependencyHierarchyWithConflicts.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.apache.maven.resolver.examples; | ||
|
|
||
| import org.apache.maven.resolver.examples.util.Booter; | ||
| import org.eclipse.aether.RepositorySystem; | ||
| import org.eclipse.aether.RepositorySystemSession.CloseableSession; | ||
| import org.eclipse.aether.RepositorySystemSession.SessionBuilder; | ||
| import org.eclipse.aether.artifact.Artifact; | ||
| import org.eclipse.aether.artifact.DefaultArtifact; | ||
| import org.eclipse.aether.collection.CollectRequest; | ||
| import org.eclipse.aether.collection.UnsolvableVersionConflictException; | ||
| import org.eclipse.aether.resolution.ArtifactDescriptorRequest; | ||
| import org.eclipse.aether.resolution.ArtifactDescriptorResult; | ||
| import org.eclipse.aether.util.graph.manager.DependencyManagerUtils; | ||
| import org.eclipse.aether.util.graph.transformer.ChainedDependencyGraphTransformer; | ||
| import org.eclipse.aether.util.graph.transformer.ConfigurableVersionSelector; | ||
| import org.eclipse.aether.util.graph.transformer.ConflictResolver; | ||
| import org.eclipse.aether.util.graph.transformer.JavaDependencyContextRefiner; | ||
| import org.eclipse.aether.util.graph.transformer.JavaScopeDeriver; | ||
| import org.eclipse.aether.util.graph.transformer.JavaScopeSelector; | ||
| import org.eclipse.aether.util.graph.transformer.SimpleOptionalitySelector; | ||
|
|
||
| /** | ||
| * Visualizes the transitive dependencies of an artifact similar to m2e's dependency hierarchy view. | ||
| */ | ||
| public class GetDependencyHierarchyWithConflicts { | ||
|
|
||
| /** | ||
| * Main. | ||
| * @param args | ||
| * @throws Exception | ||
| */ | ||
| public static void main(String[] args) throws Exception { | ||
| System.out.println("------------------------------------------------------------"); | ||
| System.out.println(GetDependencyHierarchyWithConflicts.class.getSimpleName()); | ||
|
|
||
| // incompatible versions: two incompatible versions present in graph | ||
| try (RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args))) { | ||
| SessionBuilder sessionBuilder = Booter.newRepositorySystemSession(system); | ||
| sessionBuilder.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true); | ||
| sessionBuilder.setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true); | ||
| try (CloseableSession session = sessionBuilder | ||
| .setDependencyGraphTransformer(new ChainedDependencyGraphTransformer( | ||
| new ConflictResolver( | ||
| new ConfigurableVersionSelector( | ||
| new ConfigurableVersionSelector.MajorVersionConvergence( | ||
| new ConfigurableVersionSelector.Nearest())), | ||
| new JavaScopeSelector(), | ||
| new SimpleOptionalitySelector(), | ||
| new JavaScopeDeriver()), | ||
| new JavaDependencyContextRefiner())) | ||
| .build()) { | ||
| Artifact artifact = new DefaultArtifact("org.apache.maven.shared:maven-dependency-tree:3.0.1"); | ||
|
|
||
| ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest(); | ||
| descriptorRequest.setArtifact(artifact); | ||
| descriptorRequest.setRepositories(Booter.newRepositories(system, session)); | ||
| ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest); | ||
|
|
||
| CollectRequest collectRequest = new CollectRequest(); | ||
| collectRequest.setRootArtifact(descriptorResult.getArtifact()); | ||
| collectRequest.setDependencies(descriptorResult.getDependencies()); | ||
| collectRequest.setManagedDependencies(descriptorResult.getManagedDependencies()); | ||
| collectRequest.setRepositories(descriptorRequest.getRepositories()); | ||
|
|
||
| system.collectDependencies(session, collectRequest); | ||
| throw new IllegalStateException("should fail"); | ||
| } | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| if (e.getCause() instanceof UnsolvableVersionConflictException) { | ||
| String cause = e.getCause().getMessage(); | ||
| if (!cause.contains( | ||
| "Incompatible versions for org.apache.maven:maven-core, incompatible versions: [2.0], all versions [2.0, 3.0.4]")) { | ||
| throw new IllegalStateException("should fail due incompatible versions"); | ||
| } | ||
| } else { | ||
| throw new IllegalStateException("should fail due incompatible versions"); | ||
| } | ||
| } | ||
|
|
||
| // dependency divergence: multiple versions of same GA present in graph | ||
| try (RepositorySystem system = Booter.newRepositorySystem(Booter.selectFactory(args))) { | ||
| SessionBuilder sessionBuilder = Booter.newRepositorySystemSession(system); | ||
| sessionBuilder.setConfigProperty(ConflictResolver.CONFIG_PROP_VERBOSE, true); | ||
| sessionBuilder.setConfigProperty(DependencyManagerUtils.CONFIG_PROP_VERBOSE, true); | ||
| try (CloseableSession session = sessionBuilder | ||
| .setDependencyGraphTransformer(new ChainedDependencyGraphTransformer( | ||
| new ConflictResolver( | ||
| new ConfigurableVersionSelector(new ConfigurableVersionSelector.VersionConvergence( | ||
| new ConfigurableVersionSelector.Nearest())), | ||
| new JavaScopeSelector(), | ||
| new SimpleOptionalitySelector(), | ||
| new JavaScopeDeriver()), | ||
| new JavaDependencyContextRefiner())) | ||
| .build()) { | ||
| Artifact artifact = new DefaultArtifact("org.apache.maven.shared:maven-dependency-tree:3.1.0"); | ||
|
|
||
| ArtifactDescriptorRequest descriptorRequest = new ArtifactDescriptorRequest(); | ||
| descriptorRequest.setArtifact(artifact); | ||
| descriptorRequest.setRepositories(Booter.newRepositories(system, session)); | ||
| ArtifactDescriptorResult descriptorResult = system.readArtifactDescriptor(session, descriptorRequest); | ||
|
|
||
| CollectRequest collectRequest = new CollectRequest(); | ||
| collectRequest.setRootArtifact(descriptorResult.getArtifact()); | ||
| collectRequest.setDependencies(descriptorResult.getDependencies()); | ||
| collectRequest.setManagedDependencies(descriptorResult.getManagedDependencies()); | ||
| collectRequest.setRepositories(descriptorRequest.getRepositories()); | ||
|
|
||
| system.collectDependencies(session, collectRequest); | ||
| throw new IllegalStateException("should fail"); | ||
| } | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| if (e.getCause() instanceof UnsolvableVersionConflictException) { | ||
| String cause = e.getCause().getMessage(); | ||
| if (!cause.contains( | ||
| "Convergence violated for org.codehaus.plexus:plexus-utils, versions present: [2.1, 1.5.5, 2.0.6]")) { | ||
| throw new IllegalStateException("should fail due convergence violation"); | ||
| } | ||
| } else { | ||
| throw new IllegalStateException("should fail due convergence violation"); | ||
| } | ||
| } | ||
| } | ||
| } |
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