| // Copyright 2017 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.analysis.PackageSpecificationProvider; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.collect.nestedset.Depset; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSet; |
| import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable; |
| import com.google.devtools.build.lib.packages.Info; |
| import com.google.devtools.build.lib.packages.PackageSpecification.PackageGroupContents; |
| import com.google.devtools.build.lib.packages.RuleClass.ConfiguredTargetFactory.RuleErrorException; |
| import com.google.devtools.build.lib.packages.StarlarkProviderWrapper; |
| import com.google.devtools.build.lib.packages.StructImpl; |
| import net.starlark.java.eval.EvalException; |
| import net.starlark.java.eval.Sequence; |
| import net.starlark.java.eval.Starlark; |
| import net.starlark.java.eval.StarlarkValue; |
| |
| /** A provider for Java per-package configuration. */ |
| @Immutable |
| public final class JavaPackageConfigurationProvider implements StarlarkValue { |
| |
| public static final StarlarkProviderWrapper<JavaPackageConfigurationProvider> PROVIDER = |
| new Provider(); |
| |
| private final StructImpl underlying; |
| |
| private JavaPackageConfigurationProvider(StructImpl underlying) { |
| this.underlying = underlying; |
| } |
| |
| /** Package specifications for which the configuration should be applied. */ |
| private ImmutableList<PackageSpecificationProvider> packageSpecifications() |
| throws RuleErrorException { |
| try { |
| return Sequence.noneableCast( |
| underlying.getValue("package_specs"), |
| PackageSpecificationProvider.class, |
| "package_specs") |
| .getImmutableList(); |
| } catch (EvalException e) { |
| throw new RuleErrorException(e); |
| } |
| } |
| |
| ImmutableList<String> javacoptsAsList() throws RuleErrorException { |
| try { |
| return JavaHelper.tokenizeJavaOptions( |
| Depset.noneableCast(underlying.getValue("javac_opts"), String.class, "javac_opts")); |
| } catch (EvalException e) { |
| throw new RuleErrorException(e); |
| } |
| } |
| |
| NestedSet<Artifact> data() throws RuleErrorException { |
| try { |
| return Depset.noneableCast(underlying.getValue("data"), Artifact.class, "data"); |
| } catch (EvalException e) { |
| throw new RuleErrorException(e); |
| } |
| } |
| |
| /** |
| * Returns true if this configuration matches the current label: that is, if the label's package |
| * is contained by any of the {@link #packageSpecifications}. |
| */ |
| public boolean matches(Label label) throws RuleErrorException { |
| // Do not use streams here as they create excessive garbage. |
| for (PackageSpecificationProvider provider : packageSpecifications()) { |
| for (PackageGroupContents specifications : provider.getPackageSpecifications().toList()) { |
| if (specifications.containsPackage(label.getPackageIdentifier())) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| private static class Provider extends StarlarkProviderWrapper<JavaPackageConfigurationProvider> { |
| |
| private Provider() { |
| super( |
| Label.parseCanonicalUnchecked("@_builtins//:common/java/java_package_configuration.bzl"), |
| "JavaPackageConfigurationInfo"); |
| } |
| |
| @Override |
| public JavaPackageConfigurationProvider wrap(Info value) throws RuleErrorException { |
| if (value instanceof StructImpl) { |
| return new JavaPackageConfigurationProvider((StructImpl) value); |
| } else { |
| throw new RuleErrorException( |
| "expected an instance of JavaPackageConfigurationProvider, got: " |
| + Starlark.type(value)); |
| } |
| } |
| } |
| |
| static ImmutableList<JavaPackageConfigurationProvider> wrapSequence(Sequence<StructImpl> sequence) |
| throws RuleErrorException { |
| ImmutableList.Builder<JavaPackageConfigurationProvider> builder = ImmutableList.builder(); |
| for (StructImpl struct : sequence) { |
| builder.add(PROVIDER.wrap(struct)); |
| } |
| return builder.build(); |
| } |
| } |