| /* |
| * 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.tools.idea.gradle.project; |
| |
| import com.android.SdkConstants; |
| import com.google.common.base.Function; |
| import com.google.common.collect.Sets; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * Looks up locations of the Gradle subprojects that are in the same parent project. |
| */ |
| public class GradleSiblingLookup implements Function<String, VirtualFile> { |
| @NotNull private final VirtualFile myImportSource; |
| @NotNull private final Project myDestination; |
| private Map<String, VirtualFile> mySiblingsMap; |
| |
| public GradleSiblingLookup(@NotNull VirtualFile importSource, @NotNull Project destination) { |
| myImportSource = importSource; |
| myDestination = destination; |
| } |
| |
| /** |
| * Recursively go up the file system tree to find parent project with settings.gradle and then obtain collection of siblings from |
| * that file. |
| */ |
| private static Map<String, VirtualFile> findSiblings(@Nullable VirtualFile directory, Project project, Set<VirtualFile> seen) { |
| if (directory == null) { |
| return Collections.emptyMap(); |
| } |
| else { |
| if (seen.contains(directory)) { |
| return findSiblings(null, project, seen); |
| } |
| seen.add(directory); |
| VirtualFile settings = directory.findChild(SdkConstants.FN_SETTINGS_GRADLE); |
| if (settings == null) { |
| return findSiblings(directory.getParent(), project, seen); |
| } |
| else { |
| return GradleModuleImporter.getSubProjects(settings, project); |
| } |
| } |
| } |
| |
| public String getPrimaryProjectName() { |
| String name = SdkConstants.GRADLE_PATH_SEPARATOR + myImportSource.getName(); |
| if (mySiblingsMap != null) { // We only do the scan if needed |
| for (Map.Entry<String, VirtualFile> entry : mySiblingsMap.entrySet()) { |
| if (myImportSource.equals(entry.getValue())) { |
| name = entry.getKey(); |
| break; |
| } |
| } |
| } |
| return name; |
| } |
| |
| @Override |
| public VirtualFile apply(String input) { |
| if (mySiblingsMap == null) { |
| mySiblingsMap = findSiblings(myImportSource, myDestination, Sets.<VirtualFile>newHashSet()); |
| } |
| return mySiblingsMap.get(input); |
| } |
| } |