1 /* 2 * Copyright (C) 2023 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.healthconnect.utils; 18 19 20 import java.io.File; 21 22 /** 23 * Class to help with the filesystem related methods. 24 * 25 * @hide 26 */ 27 public final class FilesUtil { 28 29 /** 30 * Get the health connect dir for the user to store sensitive data in a credential encrypted 31 * dir. 32 * 33 * @param environmentDataDirectory The environment data directory to use, allowing this to be 34 * overridden for tests. Should normally be {@link android.os.Environment#getDataDirectory}. 35 */ getDataSystemCeHCDirectoryForUser( File environmentDataDirectory, int userId)36 public static File getDataSystemCeHCDirectoryForUser( 37 File environmentDataDirectory, int userId) { 38 // Duplicates the implementation of Environment#getDataSystemCeDirectory 39 // TODO(b/191059409): Unhide Environment#getDataSystemCeDirectory and switch to it. 40 File systemCeDir = new File(environmentDataDirectory, "system_ce"); 41 File systemCeUserDir = new File(systemCeDir, String.valueOf(userId)); 42 return new File(systemCeUserDir, "healthconnect"); 43 } 44 45 /** Delete the dir recursively. */ deleteDir(File dir)46 public static void deleteDir(File dir) { 47 File[] files = dir.listFiles(); 48 if (files != null) { 49 for (var file : files) { 50 if (file.isDirectory()) { 51 deleteDir(file); 52 } else { 53 file.delete(); 54 } 55 } 56 } 57 dir.delete(); 58 } 59 FilesUtil()60 private FilesUtil() {} 61 } 62