org.gradle.api.internaldsl.dependencies.PlatformSupport Maven / Gradle / Ivy
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/*
* 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.api.internal.artifacts.dsl.dependencies;
import com.google.common.base.Objects;
import com.google.common.collect.ImmutableSet;
import org.gradle.api.Action;
import org.gradle.api.attributes.AttributeContainer;
import org.gradle.api.attributes.AttributeDisambiguationRule;
import org.gradle.api.attributes.AttributeMatchingStrategy;
import org.gradle.api.attributes.AttributesSchema;
import org.gradle.api.attributes.Category;
import org.gradle.api.attributes.HasConfigurableAttributes;
import org.gradle.api.attributes.MultipleCandidatesDetails;
import org.gradle.api.internal.ReusableAction;
import org.gradle.api.internal.artifacts.repositories.metadata.MavenImmutableAttributesFactory;
import org.gradle.api.internal.model.NamedObjectInstantiator;
import org.gradle.internal.component.external.model.ComponentVariant;
import java.util.Set;
public abstract class PlatformSupport {
public static final Category REGULAR_PLATFORM = NamedObjectInstantiator.INSTANCE.named(Category.class, Category.REGULAR_PLATFORM);
public static final Category ENFORCED_PLATFORM = NamedObjectInstantiator.INSTANCE.named(Category.class, Category.ENFORCED_PLATFORM);
public static boolean isTargettingPlatform(HasConfigurableAttributes target) {
Category category = target.getAttributes().getAttribute(Category.CATEGORY_ATTRIBUTE);
return REGULAR_PLATFORM.equals(category) || ENFORCED_PLATFORM.equals(category);
}
public static void configureSchema(AttributesSchema attributesSchema) {
AttributeMatchingStrategy componentTypeMatchingStrategy = attributesSchema.attribute(Category.CATEGORY_ATTRIBUTE);
componentTypeMatchingStrategy.getDisambiguationRules().add(PlatformSupport.ComponentCategoryDisambiguationRule.class);
}
static void addPlatformAttribute(HasConfigurableAttributes dependency, final Category category) {
dependency.attributes(new Action() {
@Override
public void execute(AttributeContainer attributeContainer) {
attributeContainer.attribute(Category.CATEGORY_ATTRIBUTE, category);
}
});
}
/**
* Checks if the variant is an {@code enforced-platform} one.
*
* This method is designed to be called on parsed metadata and thus interacts with the {@code String} version of the attribute.
*
* @param variant the variant to test
* @return {@code true} if this represents an {@code enforced-platform}, {@code false} otherwise
*/
public static boolean hasForcedDependencies(ComponentVariant variant) {
return Objects.equal(variant.getAttributes().getAttribute(MavenImmutableAttributesFactory.CATEGORY_ATTRIBUTE), Category.ENFORCED_PLATFORM);
}
public static class ComponentCategoryDisambiguationRule implements AttributeDisambiguationRule, ReusableAction {
@Override
public void execute(MultipleCandidatesDetails details) {
Category consumerValue = details.getConsumerValue();
Set candidateValues = details.getCandidateValues();
if (consumerValue == null) {
// consumer expressed no preference, defaults to library
candidateValues.stream()
.filter(it -> it.getName().equals(Category.LIBRARY))
.findFirst()
.ifPresent(it -> details.closestMatch(it));
}
}
}
public static class PreferRegularPlatform implements AttributeDisambiguationRule {
private final static Set PLATFORM_TYPES = ImmutableSet.of(REGULAR_PLATFORM, ENFORCED_PLATFORM);
@Override
public void execute(MultipleCandidatesDetails details) {
if (details.getCandidateValues().equals(PLATFORM_TYPES)) {
details.closestMatch(REGULAR_PLATFORM);
}
}
}
}