/*
* Copyright 2015 the original author or authors.
*
* Licensed 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.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact;
import com.google.common.collect.Sets;
import org.gradle.api.artifacts.ResolutionStrategy;
import org.gradle.api.artifacts.component.ProjectComponentIdentifier;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.DependencyGraphNode;
import org.gradle.internal.component.local.model.LocalConfigurationMetadata;
import org.gradle.internal.component.local.model.LocalFileDependencyMetadata;
import org.gradle.internal.component.model.ConfigurationMetadata;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import static com.google.common.collect.Maps.newLinkedHashMap;
/**
* Collects all artifacts and their build dependencies.
*/
public class DefaultResolvedArtifactsBuilder implements DependencyArtifactsVisitor {
private final boolean buildProjectDependencies;
private final ResolutionStrategy.SortOrder sortOrder;
private final Map<Long, Set<Long>> sortedNodeIds = newLinkedHashMap();
private final Map<Long, ArtifactSet> artifactSetsById = newLinkedHashMap();
private final Set<Long> buildableArtifactSets = new HashSet<Long>();
public DefaultResolvedArtifactsBuilder(boolean buildProjectDependencies, ResolutionStrategy.SortOrder sortOrder) {
this.buildProjectDependencies = buildProjectDependencies;
this.sortOrder = sortOrder;
}
@Override
public void startArtifacts(DependencyGraphNode root) {
}
@Override
public void visitNode(DependencyGraphNode node) {
sortedNodeIds.put(node.getNodeId(), Sets.<Long>newLinkedHashSet());
}
@Override
public void visitArtifacts(DependencyGraphNode from, LocalFileDependencyMetadata fileDependency, ArtifactSet artifacts) {
collectArtifactsFor(from, artifacts);
buildableArtifactSets.add(artifacts.getId());
}
@Override
public void visitArtifacts(DependencyGraphNode from, DependencyGraphNode to, ArtifactSet artifacts) {
collectArtifactsFor(to, artifacts);
// Don't collect build dependencies if not required
if (!buildProjectDependencies) {
return;
}
if (buildableArtifactSets.contains(artifacts.getId())) {
return;
}
// Collect the build dependencies in 2 steps: collect the artifact sets while traversing and at the end of traversal unpack the build dependencies for each
// We need to discard the artifact sets to avoid keeping strong references
ConfigurationMetadata configurationMetadata = to.getMetadata();
if (!(configurationMetadata instanceof LocalConfigurationMetadata)) {
return;
}
if (from.getOwner().getComponentId() instanceof ProjectComponentIdentifier) {
// This is here to attempt to leave out build dependencies that would cause a cycle in the task graph for the current build, so that the cross-build cycle detection kicks in. It's not fully correct
ProjectComponentIdentifier incomingId = (ProjectComponentIdentifier) from.getOwner().getComponentId();
if (!incomingId.getBuild().isCurrentBuild()) {
return;
}
}
buildableArtifactSets.add(artifacts.getId());
}
private void collectArtifactsFor(DependencyGraphNode node, ArtifactSet artifacts) {
artifactSetsById.put(artifacts.getId(), artifacts);
sortedNodeIds.get(node.getNodeId()).add(artifacts.getId());
}
@Override
public void finishArtifacts() {
}
public VisitedArtifactsResults complete() {
Map<Long, ArtifactSet> artifactsById = newLinkedHashMap();
for (Map.Entry<Long, ArtifactSet> entry : artifactSetsById.entrySet()) {
artifactsById.put(entry.getKey(), entry.getValue().snapshot());
}
return new DefaultVisitedArtifactResults(sortOrder, sortedNodeIds, artifactsById, buildableArtifactSets);
}
}