content: /*
   * Copyright (C) 2016 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.accounts;
  
  import android.annotation.IntRange;
  import android.annotation.NonNull;
  import android.os.RemoteCallback;
  
  /**
   * Account manager local system service interface.
   *
   * @hide Only for use within the system server.
   */
  public abstract class AccountManagerInternal {
  
      /**
       * Listener for explicit UID account access grant changes.
       */
      public interface OnAppPermissionChangeListener {
  
          /**
           * Called when the explicit grant state for a given UID to
           * access an account changes.
           *
           * @param account The account
           * @param uid The UID for which the grant changed
           */
          public void onAppPermissionChanged(Account account, int uid);
      }
  
      /**
       * Requests that a given package is given access to an account.
       * The provided callback will be invoked with a {@link android.os.Bundle}
       * containing the result which will be a boolean value mapped to the
       * {@link AccountManager#KEY_BOOLEAN_RESULT} key.
       *
       * @param account The account for which to request.
       * @param packageName The package name for which to request.
       * @param userId Concrete user id for which to request.
       * @param callback A callback for receiving the result.
       */
      public abstract void requestAccountAccess(@NonNull Account account,
              @NonNull String packageName, @IntRange(from = 0) int userId,
              @NonNull RemoteCallback callback);
  
      /**
       * Check whether the given UID has access to the account.
       *
       * @param account The account
       * @param uid The UID
       * @return Whether the UID can access the account
       */
      public abstract boolean hasAccountAccess(@NonNull Account account, @IntRange(from = 0) int uid);
  
      /**
       * Adds a listener for explicit UID account access grant changes.
       *
       * @param listener The listener
       */
      public abstract void addOnAppPermissionChangeListener(
              @NonNull OnAppPermissionChangeListener listener);
  
      /**
       * Backups the account access permissions.
       * @param userId The user for which to backup.
       * @return The backup data.
       */
      public abstract byte[] backupAccountAccessPermissions(int userId);
  
      /**
       * Restores the account access permissions.
       * @param data The restore data.
       * @param userId The user for which to restore.
       */
      public abstract void restoreAccountAccessPermissions(byte[] data, int userId);
  }
  