| /* |
| * Copyright 2019 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.car.settings.storage; |
| |
| import android.annotation.Nullable; |
| import android.os.Bundle; |
| import android.os.storage.StorageManager; |
| import android.os.storage.VolumeInfo; |
| |
| /** Utility functions for use in storage settings. */ |
| public class StorageUtils { |
| |
| private StorageUtils() { } |
| |
| /** |
| * Tries to initialize a volume with the given bundle. If it is a valid, private, and readable |
| * {@link VolumeInfo}, it is returned. If it is not valid, {@code null} is returned. |
| */ |
| @Nullable |
| public static VolumeInfo maybeInitializeVolume(StorageManager sm, @Nullable Bundle bundle) { |
| String volumeId = VolumeInfo.ID_PRIVATE_INTERNAL; |
| if (bundle != null) { |
| volumeId = bundle.getString(VolumeInfo.EXTRA_VOLUME_ID, |
| VolumeInfo.ID_PRIVATE_INTERNAL); |
| } |
| |
| VolumeInfo volume = sm.findVolumeById(volumeId); |
| return isVolumeValid(volume) ? volume : null; |
| } |
| |
| private static boolean isVolumeValid(VolumeInfo volume) { |
| return (volume != null) && (volume.getType() == VolumeInfo.TYPE_PRIVATE) |
| && volume.isMountedReadable(); |
| } |
| } |