| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * 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.android.build.gradle.internal; |
| |
| import com.android.annotations.NonNull; |
| import com.android.annotations.Nullable; |
| import com.android.build.gradle.api.GroupableProductFlavor; |
| import com.android.builder.model.ProductFlavor; |
| import com.google.common.collect.ArrayListMultimap; |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ListMultimap; |
| import com.google.common.collect.Lists; |
| |
| import java.util.List; |
| |
| /** |
| * A combination of product flavors for a variant, each belonging to a different flavor dimension. |
| */ |
| public class ProductFlavorCombo { |
| private String name; |
| |
| @NonNull |
| private final List<GroupableProductFlavor> flavorList; |
| |
| /** |
| * Create a ProductFlavorGroup. |
| * @param flavors Lists of ProductFlavor. |
| */ |
| public ProductFlavorCombo(@NonNull GroupableProductFlavor... flavors) { |
| flavorList = ImmutableList.copyOf(flavors); |
| } |
| |
| public ProductFlavorCombo(@NonNull Iterable<GroupableProductFlavor> flavors) { |
| flavorList = ImmutableList.copyOf(flavors); |
| } |
| |
| @NonNull |
| public String getName() { |
| if (name == null) { |
| boolean first = true; |
| StringBuilder sb = new StringBuilder(); |
| for (ProductFlavor flavor : flavorList) { |
| if (first) { |
| sb.append(flavor.getName()); |
| first = false; |
| } else { |
| sb.append(StringHelper.capitalize(flavor.getName())); |
| } |
| } |
| name = sb.toString(); |
| } |
| return name; |
| } |
| |
| @NonNull |
| public List<GroupableProductFlavor> getFlavorList() { |
| return flavorList; |
| } |
| |
| /** |
| * Creates a list containing all combinations of ProductFlavors of the given dimensions. |
| * @param flavorDimensions The dimensions each product flavor can belong to. |
| * @param productFlavors An iterable of all ProductFlavors in the project.. |
| * @return A list of ProductFlavorGroup representing all combinations of ProductFlavors. |
| */ |
| @NonNull |
| public static List<ProductFlavorCombo> createCombinations( |
| @Nullable List<String> flavorDimensions, |
| @NonNull Iterable<? extends GroupableProductFlavor> productFlavors) { |
| |
| List <ProductFlavorCombo> result = Lists.newArrayList(); |
| if (flavorDimensions == null || flavorDimensions.isEmpty()) { |
| for (GroupableProductFlavor flavor : productFlavors) { |
| result.add(new ProductFlavorCombo(ImmutableList.of(flavor))); |
| } |
| } else { |
| // need to group the flavor per dimension. |
| // First a map of dimension -> list(ProductFlavor) |
| ArrayListMultimap<String, GroupableProductFlavor> map = ArrayListMultimap.create(); |
| for (GroupableProductFlavor flavor : productFlavors) { |
| String flavorDimension = flavor.getFlavorDimension(); |
| |
| if (flavorDimension == null) { |
| throw new RuntimeException(String.format( |
| "Flavor '%1$s' has no flavor dimension.", flavor.getName())); |
| } |
| if (!flavorDimensions.contains(flavorDimension)) { |
| throw new RuntimeException(String.format( |
| "Flavor '%1$s' has unknown dimension '%2$s'.", |
| flavor.getName(), flavor.getFlavorDimension())); |
| } |
| |
| map.put(flavorDimension, flavor); |
| } |
| |
| createProductFlavorCombinations(result, |
| new GroupableProductFlavor[flavorDimensions.size()], |
| 0, flavorDimensions, map); |
| } |
| return result; |
| } |
| |
| /** |
| * Remove all null reference from an array and create an ImmutableList it. |
| */ |
| private static ImmutableList<GroupableProductFlavor> filterNullFromArray( |
| GroupableProductFlavor[] flavors) { |
| ImmutableList.Builder<GroupableProductFlavor> builder = ImmutableList.builder(); |
| for (GroupableProductFlavor flavor : flavors) { |
| if (flavor != null) { |
| builder.add(flavor); |
| } |
| } |
| return builder.build(); |
| } |
| |
| private static void createProductFlavorCombinations( |
| List<ProductFlavorCombo> flavorGroups, |
| GroupableProductFlavor[] group, |
| int index, |
| List<String> flavorDimensionList, |
| ListMultimap<String, GroupableProductFlavor> map) { |
| if (index == flavorDimensionList.size()) { |
| flavorGroups.add(new ProductFlavorCombo(filterNullFromArray(group))); |
| return; |
| } |
| |
| // fill the array at the current index. |
| // get the dimension name that matches the index we are filling. |
| String dimension = flavorDimensionList.get(index); |
| |
| // from our map, get all the possible flavors in that dimension. |
| List<GroupableProductFlavor> flavorList = map.get(dimension); |
| |
| // loop on all the flavors to add them to the current index and recursively fill the next |
| // indices. |
| if (flavorList.isEmpty()) { |
| throw new RuntimeException(String.format( |
| "No flavor is associated with flavor dimension '%1$s'.", dimension)); |
| } else { |
| for (GroupableProductFlavor flavor : flavorList) { |
| group[index] = flavor; |
| createProductFlavorCombinations( |
| flavorGroups, group, index + 1, flavorDimensionList, map); |
| } |
| } |
| } |
| } |