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/*
* Copyright 2017 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.graph.builder;
import com.google.common.collect.Maps;
import org.gradle.api.artifacts.ModuleIdentifier;
import org.gradle.api.artifacts.ModuleVersionIdentifier;
import org.gradle.api.artifacts.VersionConstraint;
import org.gradle.api.artifacts.component.ComponentIdentifier;
import org.gradle.api.artifacts.component.ComponentSelector;
import org.gradle.api.artifacts.component.ModuleComponentSelector;
import org.gradle.api.internal.artifacts.ComponentSelectorConverter;
import org.gradle.api.internal.artifacts.ResolvedConfigurationIdentifier;
import org.gradle.api.internal.artifacts.ResolvedVersionConstraint;
import org.gradle.api.internal.artifacts.dependencies.DefaultResolvedVersionConstraint;
import org.gradle.api.internal.artifacts.ivyservice.dependencysubstitution.DependencySubstitutionApplicator;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.Version;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionParser;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionSelectorScheme;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.ModuleConflictResolver;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.excludes.ModuleExclusions;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.selectors.ComponentStateFactory;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.selectors.SelectorStateResolver;
import org.gradle.api.internal.attributes.AttributeDesugaring;
import org.gradle.api.internal.attributes.AttributesSchemaInternal;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import org.gradle.api.internal.attributes.ImmutableAttributesFactory;
import org.gradle.api.specs.Spec;
import org.gradle.internal.component.model.ComponentResolveMetadata;
import org.gradle.internal.component.model.ConfigurationMetadata;
import org.gradle.internal.component.model.DependencyMetadata;
import org.gradle.internal.id.IdGenerator;
import org.gradle.internal.resolve.resolver.ComponentMetaDataResolver;
import org.gradle.internal.resolve.resolver.DependencyToComponentIdResolver;
import org.gradle.internal.resolve.result.ComponentResolveResult;
import java.util.ArrayDeque;
import java.util.Collection;
import java.util.Comparator;
import java.util.Deque;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* Global resolution state.
*/
class ResolveState implements ComponentStateFactory {
private final Spec edgeFilter;
private final Map modules;
private final Map nodes;
private final Map selectors;
private final RootNode root;
private final IdGenerator idGenerator;
private final DependencyToComponentIdResolver idResolver;
private final ComponentMetaDataResolver metaDataResolver;
private final Deque queue;
private final AttributesSchemaInternal attributesSchema;
private final ModuleExclusions moduleExclusions;
private final DeselectVersionAction deselectVersionAction = new DeselectVersionAction(this);
private final ReplaceSelectionWithConflictResultAction replaceSelectionWithConflictResultAction;
private final ComponentSelectorConverter componentSelectorConverter;
private final ImmutableAttributesFactory attributesFactory;
private final DependencySubstitutionApplicator dependencySubstitutionApplicator;
private final VersionSelectorScheme versionSelectorScheme;
private final Comparator versionComparator;
private final VersionParser versionParser;
private final SelectorStateResolver selectorStateResolver;
private final ResolveOptimizations resolveOptimizations;
private final Map resolvedVersionConstraints = Maps.newHashMap();
private final AttributeDesugaring attributeDesugaring;
public ResolveState(IdGenerator idGenerator, ComponentResolveResult rootResult, String rootConfigurationName, DependencyToComponentIdResolver idResolver,
ComponentMetaDataResolver metaDataResolver, Spec edgeFilter, AttributesSchemaInternal attributesSchema,
ModuleExclusions moduleExclusions,
ComponentSelectorConverter componentSelectorConverter, ImmutableAttributesFactory attributesFactory,
DependencySubstitutionApplicator dependencySubstitutionApplicator, VersionSelectorScheme versionSelectorScheme,
Comparator versionComparator, VersionParser versionParser, ModuleConflictResolver conflictResolver,
int graphSize) {
this.idGenerator = idGenerator;
this.idResolver = idResolver;
this.metaDataResolver = metaDataResolver;
this.edgeFilter = edgeFilter;
this.attributesSchema = attributesSchema;
this.moduleExclusions = moduleExclusions;
this.componentSelectorConverter = componentSelectorConverter;
this.attributesFactory = attributesFactory;
this.dependencySubstitutionApplicator = dependencySubstitutionApplicator;
this.versionSelectorScheme = versionSelectorScheme;
this.versionComparator = versionComparator;
this.versionParser = versionParser;
this.modules = new LinkedHashMap(graphSize);
this.nodes = new LinkedHashMap(3 * graphSize / 2);
this.selectors = new LinkedHashMap(5 * graphSize / 2);
this.queue = new ArrayDeque(graphSize);
this.resolveOptimizations = new ResolveOptimizations();
this.attributeDesugaring = new AttributeDesugaring(attributesFactory);
ComponentState rootVersion = getRevision(rootResult.getId(), rootResult.getModuleVersionId(), rootResult.getMetadata());
final ResolvedConfigurationIdentifier id = new ResolvedConfigurationIdentifier(rootVersion.getId(), rootConfigurationName);
ConfigurationMetadata configurationMetadata = rootVersion.getMetadata().getConfiguration(id.getConfiguration());
root = new RootNode(idGenerator.generateId(), rootVersion, id, this, configurationMetadata);
nodes.put(root.getResolvedConfigurationId(), root);
root.getComponent().getModule().select(root.getComponent());
this.replaceSelectionWithConflictResultAction = new ReplaceSelectionWithConflictResultAction(this);
selectorStateResolver = new SelectorStateResolver(conflictResolver, this, rootVersion, resolveOptimizations);
getModule(rootResult.getModuleVersionId().getModule()).setSelectorStateResolver(selectorStateResolver);
}
public Collection getModules() {
return modules.values();
}
Spec getEdgeFilter() {
return edgeFilter;
}
RootNode getRoot() {
return root;
}
public ModuleResolveState getModule(ModuleIdentifier id) {
return modules.computeIfAbsent(id, mid -> new ModuleResolveState(idGenerator, id, metaDataResolver, attributesFactory, versionComparator, versionParser, selectorStateResolver, resolveOptimizations));
}
@Override
public ComponentState getRevision(ComponentIdentifier componentIdentifier, ModuleVersionIdentifier id, ComponentResolveMetadata metadata) {
ComponentState componentState = getModule(id.getModule()).getVersion(id, componentIdentifier);
if (!componentState.alreadyResolved()) {
componentState.setMetadata(metadata);
}
return componentState;
}
public Collection getNodes() {
return nodes.values();
}
public int getNodeCount() {
return nodes.size();
}
public NodeState getNode(ComponentState module, ConfigurationMetadata configurationMetadata) {
ResolvedConfigurationIdentifier id = new ResolvedConfigurationIdentifier(module.getId(), configurationMetadata.getName());
return nodes.computeIfAbsent(id, rci -> new NodeState(idGenerator.generateId(), id, module, this, configurationMetadata));
}
public Collection getSelectors() {
return selectors.values();
}
public SelectorState getSelector(DependencyState dependencyState) {
SelectorState selectorState = selectors.computeIfAbsent(dependencyState.getRequested(), req -> {
ModuleIdentifier moduleIdentifier = dependencyState.getModuleIdentifier();
return new SelectorState(idGenerator.generateId(), dependencyState, idResolver, this, moduleIdentifier);
});
selectorState.update(dependencyState);
return selectorState;
}
public NodeState peek() {
return queue.isEmpty() ? null : queue.getFirst();
}
public NodeState pop() {
NodeState next = queue.removeFirst();
return next.dequeue();
}
/**
* Called when a change is made to a configuration node, such that its dependency graph may now be larger than it previously was, and the node should be visited.
*/
public void onMoreSelected(NodeState node) {
// Add to the end of the queue, so that we traverse the graph in breadth-wise order to pick up as many conflicts as
// possible before attempting to resolve them
if (node.enqueue()) {
queue.addLast(node);
}
}
/**
* Called when a change is made to a configuration node, such that its dependency graph may now be smaller than it previously was, and the node should be visited.
*/
public void onFewerSelected(NodeState node) {
// Add to the front of the queue, to flush out configurations that are no longer required.
if (node.enqueue()) {
queue.addFirst(node);
}
}
public AttributesSchemaInternal getAttributesSchema() {
return attributesSchema;
}
public ModuleExclusions getModuleExclusions() {
return moduleExclusions;
}
public DeselectVersionAction getDeselectVersionAction() {
return deselectVersionAction;
}
public ReplaceSelectionWithConflictResultAction getReplaceSelectionWithConflictResultAction() {
return replaceSelectionWithConflictResultAction;
}
public ComponentSelectorConverter getComponentSelectorConverter() {
return componentSelectorConverter;
}
public ImmutableAttributesFactory getAttributesFactory() {
return attributesFactory;
}
public DependencySubstitutionApplicator getDependencySubstitutionApplicator() {
return dependencySubstitutionApplicator;
}
PendingDependenciesVisitor newPendingDependenciesVisitor() {
return new DefaultPendingDependenciesVisitor(this);
}
ResolvedVersionConstraint resolveVersionConstraint(ComponentSelector selector) {
if (selector instanceof ModuleComponentSelector) {
VersionConstraint vc = ((ModuleComponentSelector) selector).getVersionConstraint();
return resolvedVersionConstraints.computeIfAbsent(vc, key -> new DefaultResolvedVersionConstraint(key, versionSelectorScheme));
}
return null;
}
ImmutableAttributes desugar(ImmutableAttributes attributes) {
return attributeDesugaring.desugar(attributes);
}
ComponentSelector desugarSelector(ComponentSelector requested) {
return attributeDesugaring.desugarSelector(requested);
}
AttributeDesugaring getAttributeDesugaring() {
return attributeDesugaring;
}
void virtualPlatformInUse() {
resolveOptimizations.declareVirtualPlatformInUse();
}
ResolveOptimizations getResolveOptimizations() {
return resolveOptimizations;
}
}