com.google.devtools.build.lib.skyframe.FilesetEntryValue.java Source code

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Here is the source code for com.google.devtools.build.lib.skyframe.FilesetEntryValue.java

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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.google.devtools.build.lib.skyframe;

import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.actions.FilesetOutputSymlink;
import com.google.devtools.build.lib.actions.FilesetTraversalParams;
import com.google.devtools.build.skyframe.SkyKey;
import com.google.devtools.build.skyframe.SkyValue;

/** Output symlinks produced by a whole FilesetEntry or by a single file in FilesetEntry.files. */
public final class FilesetEntryValue implements SkyValue {
    static final FilesetEntryValue EMPTY = new FilesetEntryValue(ImmutableSet.<FilesetOutputSymlink>of());

    private final ImmutableSet<FilesetOutputSymlink> symlinks;

    private FilesetEntryValue(ImmutableSet<FilesetOutputSymlink> symlinks) {
        this.symlinks = symlinks;
    }

    static FilesetEntryValue of(ImmutableSet<FilesetOutputSymlink> symlinks) {
        if (symlinks.isEmpty()) {
            return EMPTY;
        } else {
            return new FilesetEntryValue(symlinks);
        }
    }

    /** Returns the list of output symlinks. */
    public ImmutableSet<FilesetOutputSymlink> getSymlinks() {
        return symlinks;
    }

    public static SkyKey key(FilesetTraversalParams params) {
        return SkyKey.create(SkyFunctions.FILESET_ENTRY, params);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof FilesetEntryValue)) {
            return false;
        }
        return symlinks.equals(((FilesetEntryValue) obj).symlinks);
    }

    @Override
    public int hashCode() {
        return symlinks.hashCode();
    }
}