content: /*
   * 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 com.android.server.backup;
  
  import android.os.Environment;
  import android.os.UserHandle;
  
  import java.io.File;
  
  /** Directories used for user specific backup/restore persistent state and book-keeping. */
  final class UserBackupManagerFiles {
      // Name of the directories the service stores bookkeeping data under.
      private static final String BACKUP_PERSISTENT_DIR = "backup";
      private static final String BACKUP_STAGING_DIR = "backup_stage";
  
      private static File getBaseDir(int userId) {
          return Environment.getDataSystemCeDirectory(userId);
      }
  
      static File getBaseStateDir(int userId) {
          if (userId != UserHandle.USER_SYSTEM) {
              return new File(getBaseDir(userId), BACKUP_PERSISTENT_DIR);
          }
          // TODO (b/120424138) remove if clause above and use same logic for system user.
          // simultaneously, copy below dir to new system user dir
          return new File(Environment.getDataDirectory(), BACKUP_PERSISTENT_DIR);
      }
  
      static File getDataDir(int userId) {
          if (userId != UserHandle.USER_SYSTEM) {
              return new File(getBaseDir(userId), BACKUP_STAGING_DIR);
          }
          // TODO (b/120424138) remove if clause above and use same logic for system user. Since this
          // is a staging dir, we dont need to copy below dir to new system user dir
          return new File(Environment.getDownloadCacheDirectory(), BACKUP_STAGING_DIR);
      }
  
      /** A user specific dir within the system user's directory. */
      static File getStateDirInSystemDir(int userId) {
          return new File(getBaseStateDir(UserHandle.USER_SYSTEM), "" + userId);
      }
  
      /** Stored in a user specific dir within the system user's directory. */
      static File getStateFileInSystemDir(String filename, int userId) {
          return new File(getStateDirInSystemDir(userId), filename);
      }
  }
  