/*
* Copyright 2009 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;
import org.gradle.api.artifacts.Dependency;
import org.gradle.api.artifacts.LenientConfiguration;
import org.gradle.api.artifacts.ModuleVersionIdentifier;
import org.gradle.api.artifacts.ResolveException;
import org.gradle.api.artifacts.ResolvedArtifact;
import org.gradle.api.artifacts.ResolvedConfiguration;
import org.gradle.api.artifacts.ResolvedDependency;
import org.gradle.api.artifacts.UnresolvedDependency;
import org.gradle.api.artifacts.component.ComponentIdentifier;
import org.gradle.api.artifacts.result.ResolutionResult;
import org.gradle.api.internal.artifacts.ConfigurationResolver;
import org.gradle.api.internal.artifacts.ImmutableModuleIdentifierFactory;
import org.gradle.api.internal.artifacts.Module;
import org.gradle.api.internal.artifacts.ResolverResults;
import org.gradle.api.internal.artifacts.component.ComponentIdentifierFactory;
import org.gradle.api.internal.artifacts.configurations.ConfigurationInternal;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.ArtifactVisitor;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.BuildDependenciesVisitor;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.SelectedArtifactSet;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.artifact.VisitedArtifactSet;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.projectresult.ResolvedLocalComponentsResult;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.projectresult.ResolvedLocalComponentsResultGraphVisitor;
import org.gradle.api.internal.artifacts.ivyservice.resolveengine.result.DefaultResolutionResultBuilder;
import org.gradle.api.internal.attributes.AttributeContainerInternal;
import org.gradle.api.specs.Spec;
import java.io.File;
import java.util.Collections;
import java.util.Set;
public class ShortCircuitEmptyConfigurationResolver implements ConfigurationResolver {
private final ConfigurationResolver delegate;
private final ComponentIdentifierFactory componentIdentifierFactory;
private final ImmutableModuleIdentifierFactory moduleIdentifierFactory;
public ShortCircuitEmptyConfigurationResolver(ConfigurationResolver delegate, ComponentIdentifierFactory componentIdentifierFactory, ImmutableModuleIdentifierFactory moduleIdentifierFactory) {
this.delegate = delegate;
this.componentIdentifierFactory = componentIdentifierFactory;
this.moduleIdentifierFactory = moduleIdentifierFactory;
}
@Override
public void resolveBuildDependencies(ConfigurationInternal configuration, ResolverResults result) {
if (configuration.getAllDependencies().isEmpty()) {
emptyGraph(configuration, result);
} else {
delegate.resolveBuildDependencies(configuration, result);
}
}
@Override
public void resolveGraph(ConfigurationInternal configuration, ResolverResults results) throws ResolveException {
if (configuration.getAllDependencies().isEmpty()) {
emptyGraph(configuration, results);
} else {
delegate.resolveGraph(configuration, results);
}
}
private void emptyGraph(ConfigurationInternal configuration, ResolverResults results) {
Module module = configuration.getModule();
ModuleVersionIdentifier id = moduleIdentifierFactory.moduleWithVersion(module);
ComponentIdentifier componentIdentifier = componentIdentifierFactory.createComponentIdentifier(module);
ResolutionResult emptyResult = DefaultResolutionResultBuilder.empty(id, componentIdentifier);
ResolvedLocalComponentsResult emptyProjectResult = new ResolvedLocalComponentsResultGraphVisitor();
results.graphResolved(emptyResult, emptyProjectResult, new EmptyResults());
}
@Override
public void resolveArtifacts(ConfigurationInternal configuration, ResolverResults results) throws ResolveException {
if (configuration.getAllDependencies().isEmpty()) {
results.artifactsResolved(new EmptyResolvedConfiguration(), new EmptyResults());
} else {
delegate.resolveArtifacts(configuration, results);
}
}
private static class EmptyResults implements VisitedArtifactSet, SelectedArtifactSet {
@Override
public SelectedArtifactSet select(Spec<? super Dependency> dependencySpec, AttributeContainerInternal requestedAttributes, Spec<? super ComponentIdentifier> componentSpec, boolean allowNoMatchingVariant) {
return this;
}
@Override
public void collectBuildDependencies(BuildDependenciesVisitor visitor) {
}
@Override
public void visitArtifacts(ArtifactVisitor visitor) {
}
}
private static class EmptyResolvedConfiguration implements ResolvedConfiguration {
@Override
public boolean hasError() {
return false;
}
@Override
public LenientConfiguration getLenientConfiguration() {
return new LenientConfiguration() {
@Override
public Set<ResolvedDependency> getFirstLevelModuleDependencies() {
return Collections.emptySet();
}
@Override
public Set<ResolvedDependency> getFirstLevelModuleDependencies(Spec<? super Dependency> dependencySpec) {
return Collections.emptySet();
}
@Override
public Set<ResolvedDependency> getAllModuleDependencies() {
return Collections.emptySet();
}
@Override
public Set<UnresolvedDependency> getUnresolvedModuleDependencies() {
return Collections.emptySet();
}
@Override
public Set<File> getFiles() {
return Collections.emptySet();
}
@Override
public Set<File> getFiles(Spec<? super Dependency> dependencySpec) {
return Collections.emptySet();
}
@Override
public Set<ResolvedArtifact> getArtifacts() {
return Collections.emptySet();
}
@Override
public Set<ResolvedArtifact> getArtifacts(Spec<? super Dependency> dependencySpec) {
return Collections.emptySet();
}
};
}
@Override
public void rethrowFailure() throws ResolveException {
}
@Override
public Set<File> getFiles() throws ResolveException {
return Collections.emptySet();
}
@Override
public Set<File> getFiles(Spec<? super Dependency> dependencySpec) {
return Collections.emptySet();
}
@Override
public Set<ResolvedDependency> getFirstLevelModuleDependencies() {
return Collections.emptySet();
}
@Override
public Set<ResolvedDependency> getFirstLevelModuleDependencies(Spec<? super Dependency> dependencySpec) throws ResolveException {
return Collections.emptySet();
}
@Override
public Set<ResolvedArtifact> getResolvedArtifacts() {
return Collections.emptySet();
}
}
}