| // 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.proto.ProtoCompileActionBuilder; |
| import com.google.devtools.build.lib.rules.proto.ProtoCompileActionBuilder.Exports; |
| import com.google.devtools.build.lib.rules.proto.ProtoCompileActionBuilder.Services; |
| import com.google.devtools.build.lib.rules.proto.ProtoInfo; |
| import com.google.devtools.build.lib.rules.proto.ProtoLangToolchainProvider; |
| 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 { |
| ProtoInfo protoInfo = target.get(ProtoInfo.PROVIDER); |
| ProtoCompileActionBuilder.registerActions( |
| skylarkRuleContext.getRuleContext(), |
| ImmutableList.of( |
| new ProtoCompileActionBuilder.ToolchainInvocation( |
| flavour, |
| getProtoToolchainProvider(skylarkRuleContext, protoToolchainAttr), |
| sourceJar.getExecPathString())), |
| protoInfo, |
| skylarkRuleContext.getLabel(), |
| ImmutableList.of(sourceJar), |
| "JavaLite", |
| Exports.DO_NOT_USE, |
| Services.ALLOW); |
| } |
| |
| @Override |
| public boolean hasProtoSources(ConfiguredTarget target) { |
| return !target.get(ProtoInfo.PROVIDER).getDirectProtoSources().isEmpty(); |
| } |
| |
| @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(); |
| } |
| |
| private static ProtoLangToolchainProvider getProtoToolchainProvider( |
| SkylarkRuleContext skylarkRuleContext, String protoToolchainAttr) throws EvalException { |
| ConfiguredTarget javaliteToolchain = |
| (ConfiguredTarget) checkNotNull(skylarkRuleContext.getAttr().getValue(protoToolchainAttr)); |
| return checkNotNull(javaliteToolchain.getProvider(ProtoLangToolchainProvider.class)); |
| } |
| } |