| // Copyright 2018 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.actions; |
| |
| import com.google.common.collect.HashMultimap; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Multimap; |
| import java.util.Collection; |
| import javax.annotation.Nullable; |
| |
| /** A {@link ActionInputDepOwners} which, as a {@link ActionInputMapSink}, is mutable. */ |
| public class ActionInputDepOwnerMap implements ActionInputMapSink, ActionInputDepOwners { |
| |
| private final ImmutableSet<ActionInput> inputsOfInterest; |
| private final Multimap<ActionInput, Artifact> depOwnersByInputs; |
| |
| public ActionInputDepOwnerMap(Collection<ActionInput> inputsOfInterest) { |
| this.inputsOfInterest = ImmutableSet.copyOf(inputsOfInterest); |
| this.depOwnersByInputs = |
| HashMultimap.create(/*expectedKeys=*/ inputsOfInterest.size(), /*expectedValuesPerKey=*/ 1); |
| } |
| |
| @Override |
| public boolean put(ActionInput input, FileArtifactValue metadata, @Nullable Artifact depOwner) { |
| return addOwner(input, depOwner); |
| } |
| |
| public boolean addOwner(ActionInput input, @Nullable Artifact depOwner) { |
| if (depOwner == null || !inputsOfInterest.contains(input)) { |
| return false; |
| } |
| return depOwnersByInputs.put(input, depOwner); |
| } |
| |
| @Override |
| public ImmutableSet<Artifact> getDepOwners(ActionInput input) { |
| return ImmutableSet.copyOf(depOwnersByInputs.get(input)); |
| } |
| } |