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• RealisedMavenModuleResolveMetadata.java

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org.gradle.internal.component.external.model.maven.RealisedMavenModuleResolveMetadata Maven / Gradle / Ivy

/*
 * Copyright 2018 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.internal.component.external.model.maven;

import com.google.common.base.Objects;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import org.gradle.api.artifacts.component.ModuleComponentIdentifier;
import org.gradle.api.capabilities.CapabilitiesMetadata;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import org.gradle.api.internal.model.NamedObjectInstantiator;
import org.gradle.internal.Cast;
import org.gradle.internal.component.external.descriptor.Configuration;
import org.gradle.internal.component.external.descriptor.MavenScope;
import org.gradle.internal.component.external.model.AbstractRealisedModuleComponentResolveMetadata;
import org.gradle.internal.component.external.model.ComponentVariant;
import org.gradle.internal.component.external.model.ConfigurationBoundExternalDependencyMetadata;
import org.gradle.internal.component.external.model.DefaultModuleComponentArtifactMetadata;
import org.gradle.internal.component.external.model.ImmutableCapabilities;
import org.gradle.internal.component.external.model.LazyToRealisedModuleComponentResolveMetadataHelper;
import org.gradle.internal.component.external.model.ModuleComponentArtifactMetadata;
import org.gradle.internal.component.external.model.ModuleDependencyMetadata;
import org.gradle.internal.component.external.model.RealisedConfigurationMetadata;
import org.gradle.internal.component.external.model.VariantMetadataRules;
import org.gradle.internal.component.model.ConfigurationMetadata;
import org.gradle.internal.component.model.DefaultIvyArtifactName;
import org.gradle.internal.component.model.DependencyMetadata;
import org.gradle.internal.component.model.ExcludeMetadata;
import org.gradle.internal.component.model.ModuleSource;

import javax.annotation.Nullable;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import static org.gradle.internal.component.external.model.maven.DefaultMavenModuleResolveMetadata.JAR_PACKAGINGS;
import static org.gradle.internal.component.external.model.maven.DefaultMavenModuleResolveMetadata.POM_PACKAGING;

/**
 * {@link AbstractRealisedModuleComponentResolveMetadata Realised version} of a {@link MavenModuleResolveMetadata}.
 *
 * @see DefaultMavenModuleResolveMetadata
 */
public class RealisedMavenModuleResolveMetadata extends AbstractRealisedModuleComponentResolveMetadata implements MavenModuleResolveMetadata {

    /**
     * Factory method to transform a {@link DefaultMavenModuleResolveMetadata}, which is lazy, in a realised version.
     *
     * @param metadata the lazy metadata to transform
     * @return the realised version of the metadata
     */
    public static RealisedMavenModuleResolveMetadata transform(DefaultMavenModuleResolveMetadata metadata) {
        VariantMetadataRules variantMetadataRules = metadata.getVariantMetadataRules();
        ImmutableList variants = LazyToRealisedModuleComponentResolveMetadataHelper.realiseVariants(metadata, variantMetadataRules, metadata.getVariants());
        Map configurations = Maps.newHashMapWithExpectedSize(metadata.getConfigurationNames().size());
        List derivedVariants = ImmutableList.of();
        if (variants.isEmpty()) {
            Optional> maybeDeriveVariants = metadata.maybeDeriveVariants();
            if (maybeDeriveVariants.isPresent()) {
                ImmutableList.Builder builder = new ImmutableList.Builder<>();
                for (ConfigurationMetadata derivedVariant : maybeDeriveVariants.get()) {
                    ImmutableList dependencies = Cast.uncheckedCast(derivedVariant.getDependencies());
                    RealisedConfigurationMetadata derivedVariantMetadata = new RealisedConfigurationMetadata(
                        metadata.getId(),
                        derivedVariant.getName(),
                        derivedVariant.isTransitive(),
                        derivedVariant.isVisible(),
                        derivedVariant.getHierarchy(),
                        Cast.>uncheckedCast(derivedVariant.getArtifacts()),
                        derivedVariant.getExcludes(),
                        derivedVariant.getAttributes(),
                        (ImmutableCapabilities) derivedVariant.getCapabilities(),
                        dependencies
                    );
                    builder.add(derivedVariantMetadata);
                }
                derivedVariants = builder.build();
            }
        }
        for (String configurationName : metadata.getConfigurationNames()) {
            ImmutableMap configurationDefinitions = metadata.getConfigurationDefinitions();
            Configuration configuration = configurationDefinitions.get(configurationName);

            NameOnlyVariantResolveMetadata variant = new NameOnlyVariantResolveMetadata(configurationName);
            ImmutableAttributes variantAttributes = variantMetadataRules.applyVariantAttributeRules(variant, metadata.getAttributes());
            CapabilitiesMetadata capabilitiesMetadata = variantMetadataRules.applyCapabilitiesRules(variant, ImmutableCapabilities.EMPTY);

            List dependencies = metadata.getConfiguration(configurationName).getDependencies();
            RealisedConfigurationMetadata realisedConfiguration = createConfiguration(metadata.getId(), configurationName, configuration.isTransitive(), configuration.isVisible(),
                LazyToRealisedModuleComponentResolveMetadataHelper.constructHierarchy(configuration, configurationDefinitions), dependencies,
                variantAttributes, ImmutableCapabilities.of(capabilitiesMetadata.getCapabilities()));
            configurations.put(configurationName, realisedConfiguration);
        }
        RealisedMavenModuleResolveMetadata realisedMavenModuleResolveMetadata = new RealisedMavenModuleResolveMetadata(metadata, variants, derivedVariants, configurations);
        return realisedMavenModuleResolveMetadata;
    }

    private static RealisedConfigurationMetadata createConfiguration(ModuleComponentIdentifier componentId, String name, boolean transitive, boolean visible, ImmutableSet hierarchy, List dependencies, ImmutableAttributes attributes, ImmutableCapabilities capabilities) {
        ImmutableList artifacts = getArtifactsForConfiguration(componentId, name);
        ImmutableList asImmutable = ImmutableList.copyOf(Cast.>uncheckedCast(dependencies));
        RealisedConfigurationMetadata configuration = new RealisedConfigurationMetadata(componentId, name, transitive, visible, hierarchy, artifacts, ImmutableList.of(), attributes, capabilities, asImmutable);
        return configuration;
    }

    static ImmutableList getArtifactsForConfiguration(ModuleComponentIdentifier id, String name) {
        ImmutableList artifacts;
        if (name.equals("compile") || name.equals("runtime") || name.equals("default") || name.equals("test")) {
            artifacts = ImmutableList.of(new DefaultModuleComponentArtifactMetadata(id, new DefaultIvyArtifactName(id.getModule(), "jar", "jar")));
        } else {
            artifacts = ImmutableList.of();
        }
        return artifacts;
    }

    private static ImmutableList filterDependencies(ModuleComponentIdentifier componentId, ConfigurationMetadata config, ImmutableList dependencies) {
        ImmutableList.Builder filteredDependencies = ImmutableList.builder();
        boolean isOptionalConfiguration = "optional".equals(config.getName());

        for (MavenDependencyDescriptor dependency : dependencies) {
            if (isOptionalConfiguration && includeInOptionalConfiguration(dependency)) {
                filteredDependencies.add(new DefaultMavenModuleResolveMetadata.OptionalConfigurationDependencyMetadata(config, componentId, dependency));
            } else if (include(dependency, config.getHierarchy())) {
                filteredDependencies.add(contextualize(config, componentId, dependency));
            }
        }
        return filteredDependencies.build();
    }

    static ModuleDependencyMetadata contextualize(ConfigurationMetadata config, ModuleComponentIdentifier componentId, MavenDependencyDescriptor incoming) {
        ConfigurationBoundExternalDependencyMetadata dependency = new ConfigurationBoundExternalDependencyMetadata(config, componentId, incoming);
        dependency.alwaysUseAttributeMatching();
        return dependency;
    }

    private static boolean includeInOptionalConfiguration(MavenDependencyDescriptor dependency) {
        MavenScope dependencyScope = dependency.getScope();
        // Include all 'optional' dependencies in "optional" configuration
        return dependency.isOptional()
            && dependencyScope != MavenScope.Test
            && dependencyScope != MavenScope.System;
    }

    private static boolean include(MavenDependencyDescriptor dependency, Collection hierarchy) {
        MavenScope dependencyScope = dependency.getScope();
        if (dependency.isOptional()) {
            return false;
        }
        return hierarchy.contains(dependencyScope.getLowerName());
    }

    private final NamedObjectInstantiator objectInstantiator;

    private final ImmutableList dependencies;
    private final String packaging;
    private final boolean relocated;
    private final String snapshotTimestamp;

    private final ImmutableList derivedVariants;

    RealisedMavenModuleResolveMetadata(DefaultMavenModuleResolveMetadata metadata, ImmutableList variants,
                                       List derivedVariants, Map configurations) {
        super(metadata, variants, configurations);
        this.objectInstantiator = metadata.getObjectInstantiator();
        packaging = metadata.getPackaging();
        relocated = metadata.isRelocated();
        snapshotTimestamp = metadata.getSnapshotTimestamp();
        dependencies = metadata.getDependencies();
        this.derivedVariants = ImmutableList.copyOf(derivedVariants);
    }

    private RealisedMavenModuleResolveMetadata(RealisedMavenModuleResolveMetadata metadata, ModuleSource source) {
        super(metadata, source);
        this.objectInstantiator = metadata.objectInstantiator;
        packaging = metadata.packaging;
        relocated = metadata.relocated;
        snapshotTimestamp = metadata.snapshotTimestamp;
        dependencies = metadata.dependencies;
        this.derivedVariants = metadata.derivedVariants;
    }

    @Override
    protected Optional> maybeDeriveVariants() {
        return Optional.>of(getDerivedVariants());
    }

    ImmutableList getDerivedVariants() {
        return derivedVariants;
    }

    @Override
    public RealisedMavenModuleResolveMetadata withSource(ModuleSource source) {
        return new RealisedMavenModuleResolveMetadata(this, source);
    }

    @Override
    public MutableMavenModuleResolveMetadata asMutable() {
        return new DefaultMutableMavenModuleResolveMetadata(this, objectInstantiator);
    }

    public String getPackaging() {
        return packaging;
    }

    public boolean isRelocated() {
        return relocated;
    }

    public boolean isPomPackaging() {
        return POM_PACKAGING.equals(packaging);
    }

    public boolean isKnownJarPackaging() {
        return JAR_PACKAGINGS.contains(packaging);
    }

    @Nullable
    public String getSnapshotTimestamp() {
        return snapshotTimestamp;
    }

    @Override
    public ImmutableList getDependencies() {
        return dependencies;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        if (!super.equals(o)) {
            return false;
        }

        RealisedMavenModuleResolveMetadata that = (RealisedMavenModuleResolveMetadata) o;
        return relocated == that.relocated
            && Objects.equal(dependencies, that.dependencies)
            && Objects.equal(packaging, that.packaging)
            && Objects.equal(snapshotTimestamp, that.snapshotTimestamp);
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(super.hashCode(),
            dependencies,
            packaging,
            relocated,
            snapshotTimestamp);
    }
}