com.facebook.buck.parser.BuildTargetRawNodeParsePipeline.java Source code

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Here is the source code for com.facebook.buck.parser.BuildTargetRawNodeParsePipeline.java

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/*
 * Copyright 2016-present Facebook, Inc.
 *
 * 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.facebook.buck.parser;

import com.facebook.buck.core.cell.Cell;
import com.facebook.buck.core.model.BuildTarget;
import com.facebook.buck.core.model.UnconfiguredBuildTarget;
import com.facebook.buck.parser.exceptions.BuildTargetException;
import com.facebook.buck.parser.exceptions.NoSuchBuildTargetException;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import java.util.Map;

/** A pipeline that provides access to a raw node by its {@link BuildTarget}. */
public class BuildTargetRawNodeParsePipeline implements BuildTargetParsePipeline<Map<String, Object>> {

    private final ListeningExecutorService executorService;
    private final BuildFileRawNodeParsePipeline buildFileRawNodeParsePipeline;

    public BuildTargetRawNodeParsePipeline(ListeningExecutorService executorService,
            BuildFileRawNodeParsePipeline buildFileRawNodeParsePipeline) {
        this.executorService = executorService;
        this.buildFileRawNodeParsePipeline = buildFileRawNodeParsePipeline;
    }

    @Override
    public ListenableFuture<Map<String, Object>> getNodeJob(Cell cell, UnconfiguredBuildTarget buildTarget)
            throws BuildTargetException {
        return Futures.transformAsync(
                buildFileRawNodeParsePipeline.getAllNodesJob(cell, cell.getAbsolutePathToBuildFile(buildTarget)),
                input -> {
                    if (!input.getTargets().containsKey(buildTarget.getShortName())) {
                        throw NoSuchBuildTargetException.createForMissingBuildRule(buildTarget,
                                cell.getAbsolutePathToBuildFile(buildTarget));
                    }
                    return Futures.immediateFuture(input.getTargets().get(buildTarget.getShortName()));
                }, executorService);
    }

    @Override
    public void close() {
        buildFileRawNodeParsePipeline.close();
    }
}