| /* |
| * Copyright (C) 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.providers.downloads; |
| |
| import android.content.ContentUris; |
| import android.net.Uri; |
| import android.provider.MediaStore; |
| |
| public class MediaStoreDownloadsHelper { |
| |
| private static final String MEDIASTORE_DOWNLOAD_FILE_PREFIX = "msf:"; |
| private static final String MEDIASTORE_DOWNLOAD_DIR_PREFIX = "msd:"; |
| |
| public static String getDocIdForMediaStoreDownload(long id, boolean isDir) { |
| return (isDir ? MEDIASTORE_DOWNLOAD_DIR_PREFIX : MEDIASTORE_DOWNLOAD_FILE_PREFIX) + id; |
| } |
| |
| public static boolean isMediaStoreDownload(String docId) { |
| return docId != null && (docId.startsWith(MEDIASTORE_DOWNLOAD_FILE_PREFIX) |
| || docId.startsWith(MEDIASTORE_DOWNLOAD_DIR_PREFIX)); |
| } |
| |
| public static long getMediaStoreId(String docId) { |
| return Long.parseLong(getMediaStoreIdString(docId)); |
| } |
| |
| |
| public static String getMediaStoreIdString(String docId) { |
| final int index = docId.indexOf(":"); |
| return docId.substring(index + 1); |
| } |
| |
| public static boolean isMediaStoreDownloadDir(String docId) { |
| return docId != null && docId.startsWith(MEDIASTORE_DOWNLOAD_DIR_PREFIX); |
| } |
| |
| /** |
| * The returned uri always appends external volume {@link MediaStore#VOLUME_EXTERNAL}. |
| * It doesn't consider the item is located on second volume. It can't be used to update |
| * or insert. |
| * @param docId the doc id |
| * @return external uri for query |
| */ |
| public static Uri getMediaStoreUriForQuery(String docId) { |
| return getMediaStoreUri(MediaStore.VOLUME_EXTERNAL, docId); |
| } |
| |
| public static Uri getMediaStoreUri(String volume, String docId) { |
| return MediaStore.Downloads.getContentUri(volume, getMediaStoreId(docId)); |
| } |
| } |