// Copyright 2015 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 static com.google.common.base.Preconditions.checkNotNull;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.cmdline.Label;
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.packages.SkylarkProviderIdentifier;
import com.google.devtools.build.lib.rules.SkylarkApiProvider;
import com.google.devtools.build.lib.skylarkinterface.SkylarkCallable;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModule;
import com.google.devtools.build.lib.skylarkinterface.SkylarkModuleCategory;
import javax.annotation.Nullable;
/**
* A class that exposes the Java providers to Skylark. It is intended to provide a simple and stable
* interface for Skylark users.
*/
@SkylarkModule(
name = "JavaSkylarkApiProvider",
title = "java",
category = SkylarkModuleCategory.PROVIDER,
doc =
"Provides access to information about Java rules. Every Java-related target provides "
+ "this struct, accessible as a 'java' field on a Target struct."
)
public final class JavaSkylarkApiProvider extends SkylarkApiProvider {
/** The name of the field in Skylark used to access this class. */
public static final String NAME = "java";
/** The name of the field in Skylark proto aspects used to access this class. */
public static final SkylarkProviderIdentifier PROTO_NAME =
SkylarkProviderIdentifier.forLegacy("proto_java");
private final JavaRuleOutputJarsProvider ruleOutputJarsProvider;
@Nullable private final JavaSourceJarsProvider sourceJarsProvider;
@Nullable private final JavaGenJarsProvider genJarsProvider;
@Nullable private final JavaCompilationInfoProvider compilationInfoProvider;
@Nullable private final JavaCompilationArgsProvider compilationArgsProvider;
@Nullable private final JavaExportsProvider exportsProvider;
private JavaSkylarkApiProvider(
JavaRuleOutputJarsProvider ruleOutputJarsProvider,
@Nullable JavaSourceJarsProvider sourceJarsProvider,
@Nullable JavaGenJarsProvider genJarsProvider,
@Nullable JavaCompilationInfoProvider compilationInfoProvider,
@Nullable JavaCompilationArgsProvider compilationArgsProvider,
@Nullable JavaExportsProvider exportsProvider) {
this.compilationInfoProvider = compilationInfoProvider;
this.ruleOutputJarsProvider = ruleOutputJarsProvider;
this.sourceJarsProvider = sourceJarsProvider;
this.genJarsProvider = genJarsProvider;
this.compilationArgsProvider = compilationArgsProvider;
this.exportsProvider = exportsProvider;
}
@SkylarkCallable(
name = "source_jars",
doc = "Returns the Jars containing Java source files for the target.",
structField = true
)
public NestedSet<Artifact> getSourceJars() {
if (sourceJarsProvider == null) {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
return NestedSetBuilder.wrap(Order.STABLE_ORDER, sourceJarsProvider.getSourceJars());
}
@SkylarkCallable(
name = "transitive_deps",
doc = "Returns the transitive set of Jars required to build the target.",
structField = true
)
public NestedSet<Artifact> getTransitiveDeps() {
if (compilationArgsProvider == null) {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
return compilationArgsProvider.getRecursiveJavaCompilationArgs().getCompileTimeJars();
}
@SkylarkCallable(
name = "transitive_runtime_deps",
doc = "Returns the transitive set of Jars required on the target's runtime classpath.",
structField = true
)
public NestedSet<Artifact> getTransitiveRuntimeDeps() {
if (compilationArgsProvider == null) {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
return compilationArgsProvider.getRecursiveJavaCompilationArgs().getRuntimeJars();
}
@SkylarkCallable(
name = "transitive_source_jars",
doc =
"Returns the Jars containing Java source files for the target and all of its transitive "
+ "dependencies",
structField = true
)
public NestedSet<Artifact> getTransitiveSourceJars() {
if (sourceJarsProvider == null) {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
return sourceJarsProvider.getTransitiveSourceJars();
}
@SkylarkCallable(
name = "outputs",
doc = "Returns information about outputs of this Java target.",
structField = true
)
public JavaRuleOutputJarsProvider getOutputJars() {
return ruleOutputJarsProvider;
}
@SkylarkCallable(
name = "transitive_exports",
structField = true,
doc = "Returns transitive set of labels that are being exported from this rule."
)
public NestedSet<Label> getTransitiveExports() {
if (exportsProvider != null) {
return exportsProvider.getTransitiveExports();
} else {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
}
@SkylarkCallable(
name = "annotation_processing",
structField = true,
allowReturnNones = true,
doc = "Returns information about annotation processing for this Java target."
)
public JavaGenJarsProvider getGenJarsProvider() {
return genJarsProvider;
}
@SkylarkCallable(
name = "compilation_info",
structField = true,
allowReturnNones = true,
doc = "Returns compilation information for this Java target."
)
public JavaCompilationInfoProvider getCompilationInfoProvider() {
return compilationInfoProvider;
}
public static Builder builder() {
return new Builder();
}
/** Builder for {@link JavaSkylarkApiProvider} */
public static class Builder {
private JavaRuleOutputJarsProvider ruleOutputJarsProvider;
private JavaSourceJarsProvider sourceJarsProvider;
private JavaGenJarsProvider genJarsProvider;
private JavaCompilationInfoProvider compilationInfoProvider;
private JavaCompilationArgsProvider compilationArgsProvider;
private JavaExportsProvider exportsProvider;
public Builder setRuleOutputJarsProvider(JavaRuleOutputJarsProvider ruleOutputJarsProvider) {
this.ruleOutputJarsProvider = ruleOutputJarsProvider;
return this;
}
public Builder setSourceJarsProvider(JavaSourceJarsProvider sourceJarsProvider) {
this.sourceJarsProvider = sourceJarsProvider;
return this;
}
public Builder setGenJarsProvider1(JavaGenJarsProvider genJarsProvider) {
this.genJarsProvider = genJarsProvider;
return this;
}
public Builder setCompilationInfoProvider(JavaCompilationInfoProvider compilationInfoProvider) {
this.compilationInfoProvider = compilationInfoProvider;
return this;
}
public Builder setCompilationArgsProvider(JavaCompilationArgsProvider compilationArgsProvider) {
this.compilationArgsProvider = compilationArgsProvider;
return this;
}
public Builder setExportsProvider(JavaExportsProvider exportsProvider) {
this.exportsProvider = exportsProvider;
return this;
}
public JavaSkylarkApiProvider build() {
checkNotNull(ruleOutputJarsProvider, "Must provide JavaRuleOutputJarsProvider");
return new JavaSkylarkApiProvider(
ruleOutputJarsProvider,
sourceJarsProvider,
genJarsProvider,
compilationInfoProvider,
compilationArgsProvider,
exportsProvider);
}
}
}