com.facebook.buck.apple.AppleDependenciesCache.java Source code

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Here is the source code for com.facebook.buck.apple.AppleDependenciesCache.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.apple;

import com.facebook.buck.rules.TargetGraph;
import com.facebook.buck.rules.TargetNode;

import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableSortedSet;

public class AppleDependenciesCache {
    private class CacheItem {
        private final ImmutableSortedSet<TargetNode<?, ?>> defaultDeps;
        private final ImmutableSortedSet<TargetNode<?, ?>> exportedDeps;

        CacheItem(ImmutableSortedSet<TargetNode<?, ?>> defaultDeps,
                ImmutableSortedSet<TargetNode<?, ?>> exportedDeps) {
            this.defaultDeps = defaultDeps;
            this.exportedDeps = exportedDeps;
        }

        public ImmutableSortedSet<TargetNode<?, ?>> getDefaultDeps() {
            return defaultDeps;
        }

        public ImmutableSortedSet<TargetNode<?, ?>> getExportedDeps() {
            return exportedDeps;
        }
    }

    private final LoadingCache<TargetNode<?, ?>, CacheItem> depsCache;

    public AppleDependenciesCache(TargetGraph projectGraph) {
        this.depsCache = CacheBuilder.newBuilder().build(CacheLoader.from(node -> {
            ImmutableSortedSet.Builder<TargetNode<?, ?>> defaultDepsBuilder = ImmutableSortedSet.naturalOrder();
            ImmutableSortedSet.Builder<TargetNode<?, ?>> exportedDepsBuilder = ImmutableSortedSet.naturalOrder();
            AppleBuildRules.addDirectAndExportedDeps(projectGraph, node, defaultDepsBuilder, exportedDepsBuilder);
            return new CacheItem(defaultDepsBuilder.build(), exportedDepsBuilder.build());
        }));
    }

    ImmutableSortedSet<TargetNode<?, ?>> getDefaultDeps(TargetNode<?, ?> node) {
        return depsCache.getUnchecked(node).getDefaultDeps();
    }

    ImmutableSortedSet<TargetNode<?, ?>> getExportedDeps(TargetNode<?, ?> node) {
        return depsCache.getUnchecked(node).getExportedDeps();
    }
}