com.facebook.buck.cli.LabelSelector.java Source code

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Here is the source code for com.facebook.buck.cli.LabelSelector.java

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/*
 * Copyright 2014-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.cli;

import com.facebook.buck.rules.Label;
import com.google.common.base.Preconditions;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableSet;

import java.util.Set;

public class LabelSelector {
    private final boolean isInclusive;
    private final Set<Label> labels;

    private static final Splitter splitter = Splitter.on(TestLabelOptions.LABEL_SEPERATOR).trimResults()
            .omitEmptyStrings();

    static LabelSelector fromString(String raw) {
        Preconditions.checkNotNull(raw);
        Preconditions.checkState(!raw.isEmpty());

        boolean isInclusive = true;
        if (raw.charAt(0) == '!') {
            isInclusive = false;
            raw = raw.substring(1);
        }

        ImmutableSet.Builder<Label> labelBuilder = new ImmutableSet.Builder<>();
        Iterable<String> labelStrings = splitter.split(raw);
        for (String labelString : labelStrings) {
            BuckConfig.validateLabelName(labelString);
            labelBuilder.add(new Label(labelString));
        }

        return new LabelSelector(isInclusive, labelBuilder.build());
    }

    LabelSelector(boolean isInclusive, Set<Label> labels) {
        this.isInclusive = isInclusive;
        this.labels = labels;
    }

    public boolean matches(Set<Label> rawLabels) {
        return rawLabels.containsAll(labels);
    }

    public boolean isInclusive() {
        return isInclusive;
    }

    public LabelSelector invert() {
        return new LabelSelector(!isInclusive, labels);
    }
}