com.facebook.buck.rules.ArchiveMemberSourcePath.java Source code

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

import com.facebook.buck.model.Pair;
import com.google.common.base.Preconditions;
import com.google.common.collect.ComparisonChain;

import java.nio.file.Path;

/**
 * A {@link SourcePath} that can reference a member within an archive.
 */
public final class ArchiveMemberSourcePath extends AbstractSourcePath<ArchiveMemberSourcePath> {
    private final Pair<SourcePath, Path> contents;

    public ArchiveMemberSourcePath(SourcePath archiveSourcePath, Path memberPath) {
        Preconditions.checkState(!memberPath.isAbsolute());
        this.contents = new Pair<>(archiveSourcePath, memberPath);
    }

    public SourcePath getArchiveSourcePath() {
        return contents.getFirst();
    }

    public Path getMemberPath() {
        return contents.getSecond();
    }

    @Override
    protected Object asReference() {
        return contents;
    }

    @Override
    protected int compareReferences(ArchiveMemberSourcePath o) {
        if (o == this) {
            return 0;
        }

        return ComparisonChain.start().compare(contents.getFirst(), o.contents.getFirst())
                .compare(contents.getSecond(), o.contents.getSecond()).result();
    }
}