| /* |
| * Copyright (C) 2018 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 android.app.backup; |
| |
| import android.app.backup.FullBackup.BackupScheme.PathWithRequiredFlags; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Collection; |
| |
| /** @hide */ |
| public class BackupUtils { |
| |
| private BackupUtils() {} |
| |
| /** |
| * Returns {@code true} if {@code file} is either directly in {@code canonicalPathList} or is a |
| * file contained in a directory in the list. |
| */ |
| public static boolean isFileSpecifiedInPathList( |
| File file, Collection<PathWithRequiredFlags> canonicalPathList) throws IOException { |
| for (PathWithRequiredFlags canonical : canonicalPathList) { |
| String canonicalPath = canonical.getPath(); |
| File fileFromList = new File(canonicalPath); |
| if (fileFromList.isDirectory()) { |
| if (file.isDirectory()) { |
| // If they are both directories check exact equals. |
| if (file.equals(fileFromList)) { |
| return true; |
| } |
| } else { |
| // O/w we have to check if the file is within the directory from the list. |
| if (file.toPath().startsWith(canonicalPath)) { |
| return true; |
| } |
| } |
| } else if (file.equals(fileFromList)) { |
| // Need to check the explicit "equals" so we don't end up with substrings. |
| return true; |
| } |
| } |
| return false; |
| } |
| } |