/
DefaultArtifactDescriptorReader.java
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/
DefaultArtifactDescriptorReader.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.internal.impl.resolver;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Objects;
import org.apache.maven.api.Session;
import org.apache.maven.api.di.Inject;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;
import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.ModelBuilder;
import org.apache.maven.api.services.ModelBuilderException;
import org.apache.maven.api.services.ModelBuilderRequest;
import org.apache.maven.api.services.ModelProblem;
import org.apache.maven.api.services.ModelResolver;
import org.apache.maven.api.services.ModelResolverException;
import org.apache.maven.api.services.ModelSource;
import org.apache.maven.internal.impl.InternalSession;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.RepositoryException;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.RequestTrace;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.impl.ArtifactDescriptorReader;
import org.eclipse.aether.impl.ArtifactResolver;
import org.eclipse.aether.impl.RemoteRepositoryManager;
import org.eclipse.aether.impl.RepositoryEventDispatcher;
import org.eclipse.aether.impl.VersionRangeResolver;
import org.eclipse.aether.impl.VersionResolver;
import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.resolution.ArtifactDescriptorException;
import org.eclipse.aether.resolution.ArtifactDescriptorPolicy;
import org.eclipse.aether.resolution.ArtifactDescriptorPolicyRequest;
import org.eclipse.aether.resolution.ArtifactDescriptorRequest;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;
import org.eclipse.aether.resolution.ArtifactResult;
import org.eclipse.aether.resolution.VersionRequest;
import org.eclipse.aether.resolution.VersionResolutionException;
import org.eclipse.aether.resolution.VersionResult;
import org.eclipse.aether.transfer.ArtifactNotFoundException;
/**
* Default artifact descriptor reader.
*/
@Named
@Singleton
public class DefaultArtifactDescriptorReader implements ArtifactDescriptorReader {
private final RemoteRepositoryManager remoteRepositoryManager;
private final VersionResolver versionResolver;
private final VersionRangeResolver versionRangeResolver;
private final ArtifactResolver artifactResolver;
private final RepositoryEventDispatcher repositoryEventDispatcher;
private final ModelBuilder modelBuilder;
private final Map<String, MavenArtifactRelocationSource> artifactRelocationSources;
private final ArtifactDescriptorReaderDelegate delegate;
@Inject
public DefaultArtifactDescriptorReader(
RemoteRepositoryManager remoteRepositoryManager,
VersionResolver versionResolver,
VersionRangeResolver versionRangeResolver,
ArtifactResolver artifactResolver,
ModelBuilder modelBuilder,
RepositoryEventDispatcher repositoryEventDispatcher,
Map<String, MavenArtifactRelocationSource> artifactRelocationSources) {
this.remoteRepositoryManager =
Objects.requireNonNull(remoteRepositoryManager, "remoteRepositoryManager cannot be null");
this.versionResolver = Objects.requireNonNull(versionResolver, "versionResolver cannot be null");
this.versionRangeResolver = Objects.requireNonNull(versionRangeResolver, "versionRangeResolver cannot be null");
this.artifactResolver = Objects.requireNonNull(artifactResolver, "artifactResolver cannot be null");
this.modelBuilder = Objects.requireNonNull(modelBuilder, "modelBuilder cannot be null");
this.repositoryEventDispatcher =
Objects.requireNonNull(repositoryEventDispatcher, "repositoryEventDispatcher cannot be null");
this.artifactRelocationSources =
Objects.requireNonNull(artifactRelocationSources, "artifactRelocationSources cannot be null");
this.delegate = new ArtifactDescriptorReaderDelegate();
}
@Override
public ArtifactDescriptorResult readArtifactDescriptor(
RepositorySystemSession session, ArtifactDescriptorRequest request) throws ArtifactDescriptorException {
ArtifactDescriptorResult result = new ArtifactDescriptorResult(request);
Model model = loadPom(session, request, result);
if (model != null) {
Map<String, Object> config = session.getConfigProperties();
ArtifactDescriptorReaderDelegate delegate =
(ArtifactDescriptorReaderDelegate) config.get(ArtifactDescriptorReaderDelegate.class.getName());
if (delegate == null) {
delegate = this.delegate;
}
delegate.populateResult(InternalSession.from(session), result, model);
}
return result;
}
private Model loadPom(
RepositorySystemSession session, ArtifactDescriptorRequest request, ArtifactDescriptorResult result)
throws ArtifactDescriptorException {
RequestTrace trace = RequestTrace.newChild(request.getTrace(), request);
LinkedHashSet<String> visited = new LinkedHashSet<>();
for (Artifact a = request.getArtifact(); ; ) {
Artifact pomArtifact = ArtifactDescriptorUtils.toPomArtifactUnconditionally(a);
try {
VersionRequest versionRequest =
new VersionRequest(a, request.getRepositories(), request.getRequestContext());
versionRequest.setTrace(trace);
VersionResult versionResult = versionResolver.resolveVersion(session, versionRequest);
a = a.setVersion(versionResult.getVersion());
versionRequest =
new VersionRequest(pomArtifact, request.getRepositories(), request.getRequestContext());
versionRequest.setTrace(trace);
versionResult = versionResolver.resolveVersion(session, versionRequest);
pomArtifact = pomArtifact.setVersion(versionResult.getVersion());
} catch (VersionResolutionException e) {
result.addException(e);
throw new ArtifactDescriptorException(result);
}
if (!visited.add(a.getGroupId() + ':' + a.getArtifactId() + ':' + a.getBaseVersion())) {
RepositoryException exception =
new RepositoryException("Artifact relocations form a cycle: " + visited);
invalidDescriptor(session, trace, a, exception);
if ((getPolicy(session, a, request) & ArtifactDescriptorPolicy.IGNORE_INVALID) != 0) {
return null;
}
result.addException(exception);
throw new ArtifactDescriptorException(result);
}
ArtifactResult resolveResult;
try {
ArtifactRequest resolveRequest =
new ArtifactRequest(pomArtifact, request.getRepositories(), request.getRequestContext());
resolveRequest.setTrace(trace);
resolveResult = artifactResolver.resolveArtifact(session, resolveRequest);
pomArtifact = resolveResult.getArtifact();
result.setRepository(resolveResult.getRepository());
} catch (ArtifactResolutionException e) {
if (e.getCause() instanceof ArtifactNotFoundException) {
missingDescriptor(session, trace, a, (Exception) e.getCause());
if ((getPolicy(session, a, request) & ArtifactDescriptorPolicy.IGNORE_MISSING) != 0) {
return null;
}
}
result.addException(e);
throw new ArtifactDescriptorException(result);
}
Model model;
// TODO hack: don't rebuild model if it was already loaded during reactor resolution
final WorkspaceReader workspace = session.getWorkspaceReader();
if (workspace instanceof MavenWorkspaceReader) {
model = ((MavenWorkspaceReader) workspace).findModel(pomArtifact);
if (model != null) {
return model;
}
}
try {
Session iSession = InternalSession.from(session);
String gav =
pomArtifact.getGroupId() + ":" + pomArtifact.getArtifactId() + ":" + pomArtifact.getVersion();
ModelResolver modelResolver =
new DefaultModelResolver(remoteRepositoryManager, request.getRepositories());
ModelBuilderRequest modelRequest = ModelBuilderRequest.builder()
.session(iSession)
.projectBuild(true)
.processPlugins(false)
.twoPhaseBuilding(false)
.source(ModelSource.fromPath(pomArtifact.getPath(), gav))
// This merge is on purpose because otherwise user properties would override model
// properties in dependencies the user does not know. See MNG-7563 for details.
.systemProperties(toProperties(session.getUserProperties(), session.getSystemProperties()))
.userProperties(Map.of())
.modelResolver(modelResolver)
.build();
model = modelBuilder.build(modelRequest).getEffectiveModel();
} catch (ModelBuilderException e) {
for (ModelProblem problem : e.getResult().getProblems()) {
if (problem.getException() instanceof ModelResolverException) {
result.addException(problem.getException());
throw new ArtifactDescriptorException(result);
}
}
invalidDescriptor(session, trace, a, e);
if ((getPolicy(session, a, request) & ArtifactDescriptorPolicy.IGNORE_INVALID) != 0) {
return null;
}
result.addException(e);
throw new ArtifactDescriptorException(result);
}
Artifact relocatedArtifact = getRelocation(session, result, model);
if (relocatedArtifact != null) {
if (withinSameGav(relocatedArtifact, a)) {
result.setArtifact(relocatedArtifact);
return model; // they share same model
} else {
result.addRelocation(a);
a = relocatedArtifact;
result.setArtifact(a);
}
} else {
return model;
}
}
}
private boolean withinSameGav(Artifact a1, Artifact a2) {
return Objects.equals(a1.getGroupId(), a2.getGroupId())
&& Objects.equals(a1.getArtifactId(), a2.getArtifactId())
&& Objects.equals(a1.getVersion(), a2.getVersion());
}
private Map<String, String> toProperties(Map<String, String> dominant, Map<String, String> recessive) {
Map<String, String> props = new HashMap<>();
if (recessive != null) {
props.putAll(recessive);
}
if (dominant != null) {
props.putAll(dominant);
}
return props;
}
private Artifact getRelocation(
RepositorySystemSession session, ArtifactDescriptorResult artifactDescriptorResult, Model model)
throws ArtifactDescriptorException {
Artifact result = null;
for (MavenArtifactRelocationSource source : artifactRelocationSources.values()) {
result = source.relocatedTarget(session, artifactDescriptorResult, model);
if (result != null) {
break;
}
}
return result;
}
private void missingDescriptor(
RepositorySystemSession session, RequestTrace trace, Artifact artifact, Exception exception) {
RepositoryEvent.Builder event = new RepositoryEvent.Builder(session, EventType.ARTIFACT_DESCRIPTOR_MISSING);
event.setTrace(trace);
event.setArtifact(artifact);
event.setException(exception);
repositoryEventDispatcher.dispatch(event.build());
}
private void invalidDescriptor(
RepositorySystemSession session, RequestTrace trace, Artifact artifact, Exception exception) {
RepositoryEvent.Builder event = new RepositoryEvent.Builder(session, EventType.ARTIFACT_DESCRIPTOR_INVALID);
event.setTrace(trace);
event.setArtifact(artifact);
event.setException(exception);
repositoryEventDispatcher.dispatch(event.build());
}
private int getPolicy(RepositorySystemSession session, Artifact a, ArtifactDescriptorRequest request) {
ArtifactDescriptorPolicy policy = session.getArtifactDescriptorPolicy();
if (policy == null) {
return ArtifactDescriptorPolicy.STRICT;
}
return policy.getPolicy(session, new ArtifactDescriptorPolicyRequest(a, request.getRequestContext()));
}
}