com.facebook.buck.rules.visibility.VisibilityPatternFactory.java Source code

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Here is the source code for com.facebook.buck.rules.visibility.VisibilityPatternFactory.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.rules.visibility;

import com.facebook.buck.core.cell.resolver.CellPathResolver;
import com.facebook.buck.core.exceptions.HumanReadableException;
import com.facebook.buck.core.model.BuildTarget;
import com.google.common.collect.ImmutableSet;
import java.util.List;
import javax.annotation.Nullable;

public class VisibilityPatternFactory {

    @SuppressWarnings("unchecked")
    public ImmutableSet<VisibilityPattern> createFromStringList(CellPathResolver cellNames, String paramName,
            @Nullable Object value, BuildTarget target) {
        if (value == null) {
            return ImmutableSet.of();
        }
        if (!(value instanceof List)) {
            throw new RuntimeException(String.format("Expected an array for %s but was %s", paramName, value));
        }
        ImmutableSet.Builder<VisibilityPattern> patterns = new ImmutableSet.Builder<>();
        VisibilityPatternParser parser = new VisibilityPatternParser();
        for (String visibility : (List<String>) value) {
            try {
                patterns.add(parser.parse(cellNames, visibility));
            } catch (IllegalArgumentException e) {
                throw new HumanReadableException(e,
                        "Bad visibility expression: %s listed %s in its %s argument, but only %s "
                                + "or fully qualified target patterns are allowed (i.e. those starting with "
                                + "// or a cell).",
                        target.getFullyQualifiedName(), visibility, paramName,
                        VisibilityPatternParser.VISIBILITY_PUBLIC);
            }
        }
        return patterns.build();
    }
}