com.facebook.buck.apple.xcode.xcodeproj.PBXVariantGroup.java Source code

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Here is the source code for com.facebook.buck.apple.xcode.xcodeproj.PBXVariantGroup.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.xcode.xcodeproj;

import com.google.common.base.Preconditions;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;

import java.util.Objects;

import javax.annotation.Nullable;

public class PBXVariantGroup extends PBXGroup {

    private final LoadingCache<VirtualNameAndSourceTreePath, PBXFileReference> variantFileReferencesByNameAndSourceTreePath;

    public PBXVariantGroup(String name, @Nullable String path, SourceTree sourceTree) {
        super(name, path, sourceTree);

        variantFileReferencesByNameAndSourceTreePath = CacheBuilder.newBuilder()
                .build(new CacheLoader<VirtualNameAndSourceTreePath, PBXFileReference>() {
                    @Override
                    public PBXFileReference load(VirtualNameAndSourceTreePath key) throws Exception {
                        PBXFileReference ref = new PBXFileReference(key.getVirtualName(),
                                key.getSourceTreePath().getPath().toString(),
                                key.getSourceTreePath().getSourceTree());
                        getChildren().add(ref);
                        return ref;
                    }
                });
    }

    public PBXFileReference getOrCreateVariantFileReferenceByNameAndSourceTreePath(String virtualName,
            SourceTreePath sourceTreePath) {
        VirtualNameAndSourceTreePath key = new VirtualNameAndSourceTreePath(virtualName, sourceTreePath);
        return variantFileReferencesByNameAndSourceTreePath.getUnchecked(key);
    }

    @Override
    public String isa() {
        return "PBXVariantGroup";
    }

    private static class VirtualNameAndSourceTreePath {
        private final String virtualName;
        private final SourceTreePath sourceTreePath;

        public VirtualNameAndSourceTreePath(String virtualName, SourceTreePath sourceTreePath) {
            this.virtualName = Preconditions.checkNotNull(virtualName);
            this.sourceTreePath = Preconditions.checkNotNull(sourceTreePath);
        }

        public String getVirtualName() {
            return virtualName;
        }

        public SourceTreePath getSourceTreePath() {
            return sourceTreePath;
        }

        @Override
        public boolean equals(Object other) {
            if (!(other instanceof VirtualNameAndSourceTreePath)) {
                return false;
            }

            VirtualNameAndSourceTreePath that = (VirtualNameAndSourceTreePath) other;
            return Objects.equals(this.virtualName, that.virtualName)
                    && Objects.equals(this.sourceTreePath, that.sourceTreePath);
        }

        @Override
        public int hashCode() {
            return Objects.hash(virtualName, sourceTreePath);
        }
    }
}