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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.lib.rules.java;
import com.google.auto.value.AutoValue;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import java.util.List;
/**
* An interface for objects that provide information on how to include them in
* Java builds.
*/
@AutoValue
@Immutable
public abstract class JavaCompilationArgsProvider implements TransitiveInfoProvider {
public static JavaCompilationArgsProvider create(
JavaCompilationArgs javaCompilationArgs,
JavaCompilationArgs recursiveJavaCompilationArgs,
NestedSet<Artifact> compileTimeJavaDepArtifacts,
NestedSet<Artifact> runTimeJavaDepArtifacts) {
return new AutoValue_JavaCompilationArgsProvider(
javaCompilationArgs,
recursiveJavaCompilationArgs,
compileTimeJavaDepArtifacts,
runTimeJavaDepArtifacts);
}
public static JavaCompilationArgsProvider create(
JavaCompilationArgs javaCompilationArgs,
JavaCompilationArgs recursiveJavaCompilationArgs) {
return create(
javaCompilationArgs,
recursiveJavaCompilationArgs,
NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER),
NestedSetBuilder.<Artifact>emptySet(Order.STABLE_ORDER));
}
/**
* Returns non-recursively collected Java compilation information for
* building this target (called when strict_java_deps = 1).
*
* <p>Note that some of the parameters are still collected from the complete
* transitive closure. The non-recursive collection applies mainly to
* compile-time jars.
*/
public abstract JavaCompilationArgs getJavaCompilationArgs();
/**
* Returns recursively collected Java compilation information for building
* this target (called when strict_java_deps = 0).
*/
public abstract JavaCompilationArgs getRecursiveJavaCompilationArgs();
/**
* Returns non-recursively collected Java dependency artifacts for
* computing a restricted classpath when building this target (called when
* strict_java_deps = 1).
*
* <p>Note that dependency artifacts are needed only when non-recursive
* compilation args do not provide a safe super-set of dependencies.
* Non-strict targets such as proto_library, always collecting their
* transitive closure of deps, do not need to provide dependency artifacts.
*/
public abstract NestedSet<Artifact> getCompileTimeJavaDependencyArtifacts();
/**
* Returns Java dependency artifacts for computing a restricted run-time
* classpath (called when strict_java_deps = 1).
*/
public abstract NestedSet<Artifact> getRunTimeJavaDependencyArtifacts();
public static JavaCompilationArgsProvider merge(List<JavaCompilationArgsProvider> providers) {
if (providers.size() == 1) {
return providers.get(0);
}
JavaCompilationArgs.Builder javaCompilationArgs = JavaCompilationArgs.builder();
JavaCompilationArgs.Builder recursiveJavaCompilationArgs = JavaCompilationArgs.builder();
NestedSetBuilder<Artifact> compileTimeJavaDepArtifacts = NestedSetBuilder.stableOrder();
NestedSetBuilder<Artifact> runTimeJavaDepArtifacts = NestedSetBuilder.stableOrder();
for (JavaCompilationArgsProvider provider : providers) {
javaCompilationArgs.addTransitiveArgs(
provider.getJavaCompilationArgs(), JavaCompilationArgs.ClasspathType.BOTH);
recursiveJavaCompilationArgs.addTransitiveArgs(
provider.getRecursiveJavaCompilationArgs(), JavaCompilationArgs.ClasspathType.BOTH);
compileTimeJavaDepArtifacts.addTransitive(provider.getCompileTimeJavaDependencyArtifacts());
runTimeJavaDepArtifacts.addTransitive(provider.getRunTimeJavaDependencyArtifacts());
}
return JavaCompilationArgsProvider.create(
javaCompilationArgs.build(),
recursiveJavaCompilationArgs.build(),
compileTimeJavaDepArtifacts.build(),
runTimeJavaDepArtifacts.build());
}
}
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