| // Copyright 2022 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.query2.cquery; |
| |
| import static com.google.common.collect.ImmutableMap.toImmutableMap; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.devtools.build.lib.analysis.DependencyKind; |
| import com.google.devtools.build.lib.analysis.DependencyResolver; |
| import com.google.devtools.build.lib.analysis.TargetAndConfiguration; |
| import com.google.devtools.build.lib.causes.Cause; |
| import com.google.devtools.build.lib.cmdline.Label; |
| import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder; |
| import com.google.devtools.build.lib.packages.Target; |
| import com.google.devtools.build.lib.util.OrderedSetMultimap; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.function.Function; |
| |
| /** |
| * KnownTargetsDependencyResolver is a DependencyResolver which resolves statically over a known set |
| * of targets. It can be useful when performing queries over a known pre-resolved universe of |
| * targets. This class has been extracted from TransitionsOutputFormatterCallback.java so that it |
| * can be used in both ProtoOutputFormatterCallback and TransitionsOutputFormatterCallback |
| */ |
| public class KnownTargetsDependencyResolver extends DependencyResolver { |
| |
| private final ImmutableMap<Label, Target> knownTargets; |
| |
| public KnownTargetsDependencyResolver(Map<Label, Target> knownTargets) { |
| this.knownTargets = ImmutableMap.copyOf(knownTargets); |
| } |
| |
| @Override |
| protected Map<Label, Target> getTargets( |
| OrderedSetMultimap<DependencyKind, Label> labelMap, |
| TargetAndConfiguration fromNode, |
| NestedSetBuilder<Cause> rootCauses) { |
| return labelMap.values().stream() |
| .distinct() |
| .filter(Objects::nonNull) |
| .filter(knownTargets::containsKey) |
| .collect(toImmutableMap(Function.identity(), knownTargets::get)); |
| } |
| } |