1 /* 2 * Copyright (C) 2011 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 android.mtp; 18 19 import android.compat.annotation.UnsupportedAppUsage; 20 import android.os.storage.StorageVolume; 21 import android.provider.MediaStore; 22 23 /** 24 * This class represents a storage unit on an MTP device. 25 * Used only for MTP support in USB responder mode. 26 * MtpStorageInfo is used in MTP host mode 27 * 28 * @hide 29 */ 30 public class MtpStorage { 31 private final int mStorageId; 32 private final String mPath; 33 private final String mDescription; 34 private final boolean mRemovable; 35 private final long mMaxFileSize; 36 private final String mVolumeName; 37 MtpStorage(StorageVolume volume, int storageId)38 public MtpStorage(StorageVolume volume, int storageId) { 39 mStorageId = storageId; 40 mPath = volume.getInternalPath(); 41 mDescription = volume.getDescription(null); 42 mRemovable = volume.isRemovable(); 43 mMaxFileSize = volume.getMaxFileSize(); 44 if (volume.isPrimary()) { 45 mVolumeName = MediaStore.VOLUME_EXTERNAL_PRIMARY; 46 } else { 47 mVolumeName = volume.getNormalizedUuid(); 48 } 49 } 50 51 /** 52 * Returns the storage ID for the storage unit 53 * 54 * @return the storage ID 55 */ 56 @UnsupportedAppUsage getStorageId()57 public final int getStorageId() { 58 return mStorageId; 59 } 60 61 /** 62 * Returns the file path for the storage unit's storage in the file system 63 * 64 * @return the storage file path 65 */ 66 @UnsupportedAppUsage getPath()67 public final String getPath() { 68 return mPath; 69 } 70 71 /** 72 * Returns the description string for the storage unit 73 * 74 * @return the storage unit description 75 */ getDescription()76 public final String getDescription() { 77 return mDescription; 78 } 79 80 /** 81 * Returns true if the storage is removable. 82 * 83 * @return is removable 84 */ isRemovable()85 public final boolean isRemovable() { 86 return mRemovable; 87 } 88 89 /** 90 * Returns maximum file size for the storage, or zero if it is unbounded. 91 * 92 * @return maximum file size 93 */ getMaxFileSize()94 public long getMaxFileSize() { 95 return mMaxFileSize; 96 } 97 getVolumeName()98 public String getVolumeName() { 99 return mVolumeName; 100 } 101 } 102