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/*
* 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;
import org.gradle.api.artifacts.component.ComponentIdentifier;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ComponentResolvers;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.ErrorHandlingArtifactResolver;
import org.gradle.api.internal.artifacts.ivyservice.ivyresolve.strategy.VersionSelector;
import org.gradle.api.internal.artifacts.type.ArtifactTypeRegistry;
import org.gradle.api.internal.component.ArtifactType;
import org.gradle.internal.component.model.ComponentArtifactMetadata;
import org.gradle.internal.component.model.ComponentOverrideMetadata;
import org.gradle.internal.component.model.ComponentResolveMetadata;
import org.gradle.internal.component.model.DependencyMetadata;
import org.gradle.internal.component.model.ModuleSources;
import org.gradle.internal.model.CalculatedValueContainerFactory;
import org.gradle.internal.resolve.resolver.ArtifactResolver;
import org.gradle.internal.resolve.resolver.ArtifactSelector;
import org.gradle.internal.resolve.resolver.ComponentMetaDataResolver;
import org.gradle.internal.resolve.resolver.DefaultArtifactSelector;
import org.gradle.internal.resolve.resolver.DependencyToComponentIdResolver;
import org.gradle.internal.resolve.resolver.OriginArtifactSelector;
import org.gradle.internal.resolve.result.BuildableArtifactResolveResult;
import org.gradle.internal.resolve.result.BuildableArtifactSetResolveResult;
import org.gradle.internal.resolve.result.BuildableComponentIdResolveResult;
import org.gradle.internal.resolve.result.BuildableComponentResolveResult;
import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;
/**
* A factory for the various resolver services backed by a chain of repositories.
*/
public class ComponentResolversChain {
private final DependencyToComponentIdResolverChain dependencyToComponentIdResolver;
private final ComponentMetaDataResolverChain componentMetaDataResolver;
private final ArtifactResolver artifactResolverChain;
private final DefaultArtifactSelector artifactSelector;
public ComponentResolversChain(List providers, ArtifactTypeRegistry artifactTypeRegistry, CalculatedValueContainerFactory calculatedValueContainerFactory) {
List depToComponentIdResolvers = new ArrayList<>(providers.size());
List componentMetaDataResolvers = new ArrayList<>(1 + providers.size());
componentMetaDataResolvers.add(VirtualComponentMetadataResolver.INSTANCE);
List artifactResolvers = new ArrayList<>(providers.size());
List artifactSelectors = new ArrayList<>(providers.size());
for (ComponentResolvers provider : providers) {
depToComponentIdResolvers.add(provider.getComponentIdResolver());
componentMetaDataResolvers.add(provider.getComponentResolver());
artifactSelectors.add(provider.getArtifactSelector());
artifactResolvers.add(provider.getArtifactResolver());
}
dependencyToComponentIdResolver = new DependencyToComponentIdResolverChain(depToComponentIdResolvers);
componentMetaDataResolver = new ComponentMetaDataResolverChain(componentMetaDataResolvers);
artifactResolverChain = new ErrorHandlingArtifactResolver(new ArtifactResolverChain(artifactResolvers));
artifactSelector = new DefaultArtifactSelector(artifactSelectors, artifactResolverChain, artifactTypeRegistry, calculatedValueContainerFactory);
}
public ArtifactSelector getArtifactSelector() {
return artifactSelector;
}
public DependencyToComponentIdResolver getComponentIdResolver() {
return dependencyToComponentIdResolver;
}
public ComponentMetaDataResolver getComponentResolver() {
return componentMetaDataResolver;
}
public ArtifactResolver getArtifactResolver() {
return artifactResolverChain;
}
private static class ComponentMetaDataResolverChain implements ComponentMetaDataResolver {
private final List resolvers;
public ComponentMetaDataResolverChain(List resolvers) {
this.resolvers = resolvers;
}
@Override
public void resolve(ComponentIdentifier identifier, ComponentOverrideMetadata componentOverrideMetadata, BuildableComponentResolveResult result) {
for (ComponentMetaDataResolver resolver : resolvers) {
if (result.hasResult()) {
return;
}
resolver.resolve(identifier, componentOverrideMetadata, result);
}
}
@Override
public boolean isFetchingMetadataCheap(ComponentIdentifier identifier) {
for (ComponentMetaDataResolver resolver : resolvers) {
if (!resolver.isFetchingMetadataCheap(identifier)) {
return false;
}
}
return true;
}
}
private static class ArtifactResolverChain implements ArtifactResolver {
private final List resolvers;
private ArtifactResolverChain(List resolvers) {
this.resolvers = resolvers;
}
@Override
public void resolveArtifact(ComponentArtifactMetadata artifact, ModuleSources moduleSources, BuildableArtifactResolveResult result) {
for (ArtifactResolver resolver : resolvers) {
if (result.hasResult()) {
return;
}
resolver.resolveArtifact(artifact, moduleSources, result);
}
}
@Override
public void resolveArtifactsWithType(ComponentResolveMetadata component, ArtifactType artifactType, BuildableArtifactSetResolveResult result) {
for (ArtifactResolver resolver : resolvers) {
if (result.hasResult()) {
return;
}
resolver.resolveArtifactsWithType(component, artifactType, result);
}
}
}
private static class DependencyToComponentIdResolverChain implements DependencyToComponentIdResolver {
// Using an array here because we're going to iterate pretty often and it avoids the creation of an iterator
// that checks for concurrent modification
private final DependencyToComponentIdResolver[] resolvers;
public DependencyToComponentIdResolverChain(List resolvers) {
this.resolvers = resolvers.toArray(new DependencyToComponentIdResolver[0]);
}
@Override
public void resolve(DependencyMetadata dependency, VersionSelector acceptor, @Nullable VersionSelector rejector, BuildableComponentIdResolveResult result) {
for (DependencyToComponentIdResolver resolver : resolvers) {
if (result.hasResult()) {
return;
}
resolver.resolve(dependency, acceptor, rejector, result);
}
}
}
}