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JavaLibrary.java
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JavaLibrary.java
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/*
* Copyright 2012 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.java;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableSet;
import org.gradle.api.artifacts.ConfigurationContainer;
import org.gradle.api.artifacts.DependencySet;
import org.gradle.api.artifacts.ModuleDependency;
import org.gradle.api.artifacts.PublishArtifact;
import org.gradle.api.attributes.AttributeContainer;
import org.gradle.api.attributes.Usage;
import org.gradle.api.internal.attributes.DefaultImmutableAttributesFactory;
import org.gradle.api.internal.attributes.ImmutableAttributes;
import org.gradle.api.internal.attributes.ImmutableAttributesFactory;
import org.gradle.api.internal.component.SoftwareComponentInternal;
import org.gradle.api.internal.component.UsageContext;
import org.gradle.api.internal.model.DefaultObjectFactory;
import org.gradle.api.internal.model.NamedObjectInstantiator;
import org.gradle.api.model.ObjectFactory;
import org.gradle.internal.reflect.DirectInstantiator;
import javax.inject.Inject;
import java.util.LinkedHashSet;
import java.util.Set;
import static org.gradle.api.plugins.JavaPlugin.API_ELEMENTS_CONFIGURATION_NAME;
import static org.gradle.api.plugins.JavaPlugin.RUNTIME_ELEMENTS_CONFIGURATION_NAME;
/**
* A SoftwareComponent representing a library that runs on a java virtual machine.
*/
public class JavaLibrary implements SoftwareComponentInternal {
// This must ONLY be used in the deprecated constructor, for backwards compatibility
private final static ObjectFactory DEPRECATED_OBJECT_FACTORY = new DefaultObjectFactory(DirectInstantiator.INSTANCE, NamedObjectInstantiator.INSTANCE);
private final Set<PublishArtifact> artifacts = new LinkedHashSet<PublishArtifact>();
private final UsageContext runtimeUsage;
private final UsageContext compileUsage;
private final ConfigurationContainer configurations;
private final ObjectFactory objectFactory;
private final ImmutableAttributesFactory attributesFactory;
@Inject
public JavaLibrary(ObjectFactory objectFactory, ConfigurationContainer configurations, ImmutableAttributesFactory attributesFactory, PublishArtifact artifact) {
this.artifacts.add(artifact);
this.configurations = configurations;
this.objectFactory = objectFactory;
this.attributesFactory = attributesFactory;
this.runtimeUsage = new RuntimeUsageContext(Usage.JAVA_RUNTIME);
this.compileUsage = new CompileUsageContext(Usage.JAVA_API);
}
/**
* This constructor should not be used, and is maintained only for backwards
* compatibility with the widely used Shadow plugin.
*/
@Deprecated
public JavaLibrary(PublishArtifact jarArtifact, DependencySet runtimeDependencies) {
this.artifacts.add(jarArtifact);
this.objectFactory = DEPRECATED_OBJECT_FACTORY;
this.attributesFactory = new DefaultImmutableAttributesFactory(null);
this.runtimeUsage = new BackwardsCompatibilityUsageContext(Usage.JAVA_RUNTIME, runtimeDependencies);
this.compileUsage = new BackwardsCompatibilityUsageContext(Usage.JAVA_API, runtimeDependencies);
this.configurations = null;
}
@VisibleForTesting
Set<PublishArtifact> getArtifacts() {
return artifacts;
}
public String getName() {
return "java";
}
public Set<UsageContext> getUsages() {
return ImmutableSet.of(runtimeUsage, compileUsage);
}
private abstract class AbstractUsageContext implements UsageContext {
private final Usage usage;
private final ImmutableAttributes attributes;
AbstractUsageContext(String usageName) {
this.usage = objectFactory.named(Usage.class, usageName);
this.attributes = attributesFactory.of(Usage.USAGE_ATTRIBUTE, usage);
}
@Override
public AttributeContainer getAttributes() {
return attributes;
}
@Override
public Usage getUsage() {
return usage;
}
public Set<PublishArtifact> getArtifacts() {
return artifacts;
}
}
private class RuntimeUsageContext extends AbstractUsageContext {
private DependencySet dependencies;
RuntimeUsageContext(String usageName) {
super(usageName);
}
@Override
public String getName() {
return "runtime";
}
public Set<ModuleDependency> getDependencies() {
if (dependencies == null) {
dependencies = configurations.getByName(RUNTIME_ELEMENTS_CONFIGURATION_NAME).getIncoming().getDependencies();
}
return dependencies.withType(ModuleDependency.class);
}
}
private class CompileUsageContext extends AbstractUsageContext {
private DependencySet dependencies;
CompileUsageContext(String usageName) {
super(usageName);
}
@Override
public String getName() {
return "api";
}
public Set<ModuleDependency> getDependencies() {
if (dependencies == null) {
dependencies = configurations.getByName(API_ELEMENTS_CONFIGURATION_NAME).getIncoming().getDependencies();
}
return dependencies.withType(ModuleDependency.class);
}
}
private class BackwardsCompatibilityUsageContext extends AbstractUsageContext {
private final DependencySet runtimeDependencies;
private BackwardsCompatibilityUsageContext(String usageName, DependencySet runtimeDependencies) {
super(usageName);
this.runtimeDependencies = runtimeDependencies;
}
@Override
public String getName() {
return getUsage().getName();
}
@Override
public Set<ModuleDependency> getDependencies() {
return runtimeDependencies.withType(ModuleDependency.class);
}
}
}