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

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

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/*
 * Copyright 2018-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.targetgraph.RawTargetNode;
import com.facebook.buck.core.model.targetgraph.TargetNode;
import com.facebook.buck.core.select.SelectorList;
import com.facebook.buck.event.PerfEventId;
import com.facebook.buck.event.SimplePerfEvent.Scope;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableMap;
import java.nio.file.Path;
import java.util.Map;
import java.util.function.Function;

/**
 * Creates {@link TargetNode} from {@link RawTargetNode} without resolving configurable attributes.
 *
 * <p>This is used to create {@link TargetNode} for targets that represent configuration rules.
 */
public class NonResolvingRawTargetNodeToTargetNodeFactory implements ParserTargetNodeFactory<RawTargetNode> {

    private final ParserTargetNodeFactory<Map<String, Object>> parserTargetNodeFactory;

    public NonResolvingRawTargetNodeToTargetNodeFactory(
            ParserTargetNodeFactory<Map<String, Object>> parserTargetNodeFactory) {
        this.parserTargetNodeFactory = parserTargetNodeFactory;
    }

    @Override
    public TargetNode<?> createTargetNode(Cell cell, Path buildFile, BuildTarget target,
            RawTargetNode rawTargetNode, Function<PerfEventId, Scope> perfEventScope) {

        return parserTargetNodeFactory.createTargetNode(cell, cell.getAbsolutePathToBuildFile(target), target,
                assertRawTargetNodeAttributesNotConfigurable(target, rawTargetNode.getAttributes().getAll()),
                perfEventScope);
    }

    private ImmutableMap<String, Object> assertRawTargetNodeAttributesNotConfigurable(BuildTarget buildTarget,
            ImmutableMap<String, Object> rawTargetNodeAttributes) {
        for (Map.Entry<String, ?> entry : rawTargetNodeAttributes.entrySet()) {
            Preconditions.checkState(!(entry.getValue() instanceof SelectorList),
                    "Attribute %s cannot be configurable in %s", entry.getKey(), buildTarget);
        }
        return rawTargetNodeAttributes;
    }
}