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

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Here is the source code for com.facebook.buck.apple.xcode.xcodeproj.XCVersionGroup.java

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/*
 * Copyright 2013-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.facebook.buck.apple.xcode.XcodeprojSerializer;
import com.google.common.base.Optional;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import com.google.common.io.Files;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class XCVersionGroup extends PBXReference {
    private static final ImmutableMap<String, String> FILE_EXTENSION_TO_UTI = ImmutableMap.of("xcdatamodeld",
            "wrapper.xcdatamodel");

    private Optional<PBXFileReference> currentVersion;

    private final List<PBXFileReference> children;

    private final LoadingCache<SourceTreePath, PBXFileReference> fileReferencesBySourceTreePath;

    public XCVersionGroup(String name, String path, SourceTree sourceTree) {
        super(name, path, sourceTree);
        children = Lists.newArrayList();

        fileReferencesBySourceTreePath = CacheBuilder.newBuilder()
                .build(new CacheLoader<SourceTreePath, PBXFileReference>() {
                    @Override
                    public PBXFileReference load(SourceTreePath key) throws Exception {
                        PBXFileReference ref = new PBXFileReference(key.getPath().getFileName().toString(),
                                key.getPath().toString(), key.getSourceTree());
                        children.add(ref);
                        return ref;
                    }
                });

        currentVersion = Optional.absent();
    }

    /**
     * The file type of the version group, which is the type of each file. If the current version is
     * set, then this method returns the type of the item that is the current version. Otherwise, it
     * attempts to autodetect the type based on the name, or {@link Optional#absent()} if it could
     * not be autodetected.
     */
    public Optional<String> getVersionGroupType() {
        if (currentVersion.isPresent()) {
            return currentVersion.get().getExplicitFileType();
        }
        return Optional.fromNullable(FILE_EXTENSION_TO_UTI.get(Files.getFileExtension(getName())));
    }

    public Optional<PBXFileReference> getCurrentVersion() {
        return currentVersion;
    }

    public void setCurrentVersion(Optional<PBXFileReference> v) {
        currentVersion = v;
    }

    public List<PBXFileReference> getChildren() {
        return children;
    }

    public PBXFileReference getOrCreateFileReferenceBySourceTreePath(SourceTreePath sourceTreePath) {
        return fileReferencesBySourceTreePath.getUnchecked(sourceTreePath);
    }

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

    @Override
    public void serializeInto(XcodeprojSerializer s) {
        super.serializeInto(s);

        Collections.sort(children, new Comparator<PBXReference>() {
            @Override
            public int compare(PBXReference o1, PBXReference o2) {
                return o1.getName().compareTo(o2.getName());
            }
        });
        s.addField("children", children);

        if (currentVersion.isPresent()) {
            s.addField("currentVersion", currentVersion.get());
        }

        Optional<String> versionGroupType = getVersionGroupType();
        if (versionGroupType.isPresent()) {
            s.addField("versionGroupType", versionGroupType.get());
        }
    }
}