blob: b198e3c10bf04000502a893345b29be3e523ba7e [file] [log] [blame]
// 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.ImmutableSet;
import com.google.common.collect.Maps;
import java.util.Collection;
import java.util.Map;
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 Map<ActionInput, Artifact> depOwnersByInputs;
public ActionInputDepOwnerMap(Collection<ActionInput> inputsOfInterest) {
this.inputsOfInterest = ImmutableSet.copyOf(inputsOfInterest);
this.depOwnersByInputs = Maps.newHashMapWithExpectedSize(inputsOfInterest.size());
}
@Override
public boolean put(ActionInput input, FileArtifactValue metadata, @Nullable Artifact depOwner) {
if (depOwner == null || !inputsOfInterest.contains(input)) {
return false;
}
return depOwnersByInputs.put(input, depOwner) == null;
}
@Override
@Nullable
public Artifact getDepOwner(ActionInput input) {
return depOwnersByInputs.get(input);
}
}