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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.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
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;
/**
* Represents common aspects of all JVM targeting configured targets.
*/
public final class ClasspathConfiguredFragment {
private final NestedSet<Artifact> runtimeClasspath;
private final NestedSet<Artifact> compileTimeClasspath;
private final ImmutableList<Artifact> bootClasspath;
/**
* Initializes the runtime and compile time classpaths for this target. This method
* should be called during {@code initializationHook()} once a {@link JavaTargetAttributes}
* object for this target is fully initialized.
*
* @param attributes the processed attributes of this Java target
* @param isNeverLink whether to leave runtimeClasspath empty
*/
public ClasspathConfiguredFragment(JavaCompilationArtifacts javaArtifacts,
JavaTargetAttributes attributes, boolean isNeverLink) {
if (!isNeverLink) {
runtimeClasspath = getRuntimeClasspathList(attributes, javaArtifacts);
} else {
runtimeClasspath = NestedSetBuilder.emptySet(Order.NAIVE_LINK_ORDER);
}
compileTimeClasspath = attributes.getCompileTimeClassPath();
bootClasspath = attributes.getBootClassPath();
}
public ClasspathConfiguredFragment() {
runtimeClasspath = NestedSetBuilder.emptySet(Order.NAIVE_LINK_ORDER);
compileTimeClasspath = NestedSetBuilder.emptySet(Order.NAIVE_LINK_ORDER);
bootClasspath = ImmutableList.of();
}
/**
* Returns the runtime class path. It consists of the concatenation of the
* instrumentation class path, output jars and the runtime time class path of
* the transitive dependencies of this rule.
*
* @param attributes the processed attributes of this Java target
*
* @return a {@List} of artifacts that comprise the runtime class path.
*/
private NestedSet<Artifact> getRuntimeClasspathList(
JavaTargetAttributes attributes, JavaCompilationArtifacts javaArtifacts) {
NestedSetBuilder<Artifact> builder = NestedSetBuilder.naiveLinkOrder();
builder.addAll(javaArtifacts.getRuntimeJars());
builder.addTransitive(attributes.getRuntimeClassPath());
return builder.build();
}
/**
* Returns the classpath to be passed to the JVM when running a target containing this fragment.
*/
public NestedSet<Artifact> getRuntimeClasspath() {
return runtimeClasspath;
}
/**
* Returns the classpath to be passed to the Java compiler when compiling a target containing this
* fragment.
*/
public NestedSet<Artifact> getCompileTimeClasspath() {
return compileTimeClasspath;
}
/**
* Returns the classpath to be passed as a boot classpath to the Java compiler when compiling
* a target containing this fragment.
*/
public ImmutableList<Artifact> getBootClasspath() {
return bootClasspath;
}
}
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