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// Copyright 2016 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.proto;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.ConfiguredTarget;
import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
import com.google.devtools.build.lib.analysis.skylark.SkylarkRuleContext;
import com.google.devtools.build.lib.rules.java.JavaCompilationArgsProvider;
import com.google.devtools.build.lib.rules.java.JavaInfo;
import com.google.devtools.build.lib.rules.java.JavaToolchainProvider;
import com.google.devtools.build.lib.rules.proto.ProtoCompileActionBuilder;
import com.google.devtools.build.lib.rules.proto.ProtoLangToolchainProvider;
import com.google.devtools.build.lib.rules.proto.ProtoSupportDataProvider;
import com.google.devtools.build.lib.rules.proto.SupportData;
import com.google.devtools.build.lib.skylarkbuildapi.java.JavaProtoCommonApi;
import com.google.devtools.build.lib.syntax.EvalException;
/**
* A class that exposes Java common methods for proto compilation.
*/
public class JavaProtoSkylarkCommon
implements JavaProtoCommonApi<Artifact, SkylarkRuleContext, ConfiguredTarget> {
@Override
public void createProtoCompileAction(
SkylarkRuleContext skylarkRuleContext,
ConfiguredTarget target,
Artifact sourceJar,
String protoToolchainAttr,
String flavour) throws EvalException {
SupportData supportData =
checkNotNull(target.getProvider(ProtoSupportDataProvider.class).getSupportData());
ProtoCompileActionBuilder.registerActions(
skylarkRuleContext.getRuleContext(),
ImmutableList.of(
new ProtoCompileActionBuilder.ToolchainInvocation(
flavour,
getProtoToolchainProvider(skylarkRuleContext, protoToolchainAttr),
sourceJar.getExecPathString())),
supportData.getDirectProtoSources(),
supportData.getTransitiveImports(),
supportData.getProtosInDirectDeps(),
supportData.getTransitiveProtoPathFlags(),
supportData.getDirectProtoSourceRoots(),
skylarkRuleContext.getLabel(),
ImmutableList.of(sourceJar),
"JavaLite",
/* allowServices= */ true);
}
@Override
public boolean hasProtoSources(ConfiguredTarget target) {
SupportData supportData =
checkNotNull(target.getProvider(ProtoSupportDataProvider.class).getSupportData());
return supportData.hasProtoSources();
}
@Override
public JavaInfo getRuntimeToolchainProvider(
SkylarkRuleContext skylarkRuleContext, String protoToolchainAttr) throws EvalException {
TransitiveInfoCollection runtime =
getProtoToolchainProvider(skylarkRuleContext, protoToolchainAttr).runtime();
return
JavaInfo.Builder.create()
.addProvider(
JavaCompilationArgsProvider.class,
JavaInfo.getProvider(JavaCompilationArgsProvider.class, runtime))
.build();
}
@Override
// TODO(b/78512644): migrate callers to passing explicit proto javacopts or using custom
// toolchains, and delete
public ImmutableList<String> getJavacOpts(
SkylarkRuleContext skylarkRuleContext, String javaToolchainAttr) throws EvalException {
ConfiguredTarget javaToolchainConfigTarget =
(ConfiguredTarget) checkNotNull(skylarkRuleContext.getAttr().getValue(javaToolchainAttr));
JavaToolchainProvider toolchain =
checkNotNull(JavaToolchainProvider.from(javaToolchainConfigTarget));
return ProtoJavacOpts.constructJavacOpts(skylarkRuleContext.getRuleContext(), toolchain);
}
private static ProtoLangToolchainProvider getProtoToolchainProvider(
SkylarkRuleContext skylarkRuleContext, String protoToolchainAttr) throws EvalException {
ConfiguredTarget javaliteToolchain = (ConfiguredTarget) checkNotNull(
skylarkRuleContext.getAttr().getValue(protoToolchainAttr));
return checkNotNull(javaliteToolchain.getProvider(ProtoLangToolchainProvider.class));
}
}
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