com.google.devtools.build.lib.analysis.CompositeRunfilesSupplier.java Source code

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Here is the source code for com.google.devtools.build.lib.analysis.CompositeRunfilesSupplier.java

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// Copyright 2015 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.analysis;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Maps;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.RunfilesSupplier;
import com.google.devtools.build.lib.util.Preconditions;
import com.google.devtools.build.lib.vfs.PathFragment;

import java.io.IOException;
import java.util.Map;

/** RunfilesSupplier implementation composing instances. */
public class CompositeRunfilesSupplier implements RunfilesSupplier {

    private final RunfilesSupplier first;
    private final RunfilesSupplier second;

    /** Create an instance with {@code first} taking precedence over {@code second}. */
    public CompositeRunfilesSupplier(RunfilesSupplier first, RunfilesSupplier second) {
        this.first = Preconditions.checkNotNull(first);
        this.second = Preconditions.checkNotNull(second);
    }

    @Override
    public Iterable<Artifact> getArtifacts() {
        ImmutableSet.Builder<Artifact> result = ImmutableSet.builder();
        result.addAll(first.getArtifacts());
        result.addAll(second.getArtifacts());
        return result.build();
    }

    @Override
    public ImmutableSet<PathFragment> getRunfilesDirs() {
        ImmutableSet.Builder<PathFragment> result = ImmutableSet.builder();
        result.addAll(first.getRunfilesDirs());
        result.addAll(second.getRunfilesDirs());
        return result.build();
    }

    @Override
    public ImmutableMap<PathFragment, Map<PathFragment, Artifact>> getMappings() throws IOException {
        Map<PathFragment, Map<PathFragment, Artifact>> result = Maps.newHashMap();
        result.putAll(second.getMappings());
        result.putAll(first.getMappings());
        return ImmutableMap.copyOf(result);
    }
}