42bf6d8a42
The MediaStore.VOLUME_EXTERNAL volume is a merged view of all storage devices, and clients working on a specific volume need to focus on the volume they're interested in. Bug: 129840030 Test: atest --test-mapping packages/providers/MediaProvider Change-Id: I91cee6a96d7f9360e6a93a9a3c389b097b6b9967
283 lines
12 KiB
Java
283 lines
12 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.mtp;
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import android.content.ContentProviderClient;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.RemoteException;
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import android.provider.MediaStore.Audio;
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import android.provider.MediaStore.Files;
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import android.provider.MediaStore.Images;
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import android.util.Log;
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import java.util.ArrayList;
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/**
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* MtpPropertyGroup represents a list of MTP properties.
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* {@hide}
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*/
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class MtpPropertyGroup {
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private static final String TAG = MtpPropertyGroup.class.getSimpleName();
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private class Property {
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int code;
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int type;
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int column;
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Property(int code, int type, int column) {
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this.code = code;
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this.type = type;
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this.column = column;
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}
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}
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// list of all properties in this group
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private final Property[] mProperties;
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// list of columns for database query
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private String[] mColumns;
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private static final String PATH_WHERE = Files.FileColumns.DATA + "=?";
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// constructs a property group for a list of properties
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public MtpPropertyGroup(int[] properties) {
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int count = properties.length;
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ArrayList<String> columns = new ArrayList<>(count);
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columns.add(Files.FileColumns._ID);
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mProperties = new Property[count];
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for (int i = 0; i < count; i++) {
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mProperties[i] = createProperty(properties[i], columns);
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}
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count = columns.size();
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mColumns = new String[count];
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for (int i = 0; i < count; i++) {
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mColumns[i] = columns.get(i);
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}
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}
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private Property createProperty(int code, ArrayList<String> columns) {
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String column = null;
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int type;
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switch (code) {
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case MtpConstants.PROPERTY_STORAGE_ID:
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_OBJECT_FORMAT:
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_PROTECTION_STATUS:
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_OBJECT_SIZE:
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type = MtpConstants.TYPE_UINT64;
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break;
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case MtpConstants.PROPERTY_OBJECT_FILE_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DATE_MODIFIED:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DATE_ADDED:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ORIGINAL_RELEASE_DATE:
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column = Audio.AudioColumns.YEAR;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_PARENT_OBJECT:
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_PERSISTENT_UID:
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type = MtpConstants.TYPE_UINT128;
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break;
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case MtpConstants.PROPERTY_DURATION:
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column = Audio.AudioColumns.DURATION;
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_TRACK:
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column = Audio.AudioColumns.TRACK;
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_DISPLAY_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ARTIST:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ALBUM_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ALBUM_ARTIST:
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column = Audio.AudioColumns.ALBUM_ARTIST;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_COMPOSER:
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column = Audio.AudioColumns.COMPOSER;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DESCRIPTION:
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column = Images.ImageColumns.DESCRIPTION;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_AUDIO_WAVE_CODEC:
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case MtpConstants.PROPERTY_AUDIO_BITRATE:
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case MtpConstants.PROPERTY_SAMPLE_RATE:
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// these are special cased
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_BITRATE_TYPE:
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case MtpConstants.PROPERTY_NUMBER_OF_CHANNELS:
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// these are special cased
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type = MtpConstants.TYPE_UINT16;
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break;
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default:
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type = MtpConstants.TYPE_UNDEFINED;
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Log.e(TAG, "unsupported property " + code);
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break;
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}
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if (column != null) {
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columns.add(column);
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return new Property(code, type, columns.size() - 1);
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} else {
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return new Property(code, type, -1);
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}
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}
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/**
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* Gets the values of the properties represented by this property group for the given
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* object and adds them to the given property list.
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* @return Response_OK if the operation succeeded.
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*/
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public int getPropertyList(ContentProviderClient provider, String volumeName,
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MtpStorageManager.MtpObject object, MtpPropertyList list) {
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Cursor c = null;
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int id = object.getId();
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String path = object.getPath().toString();
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for (Property property : mProperties) {
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if (property.column != -1 && c == null) {
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try {
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// Look up the entry in MediaProvider only if one of those properties is needed.
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final Uri uri = MtpDatabase.getObjectPropertiesUri(object.getFormat(),
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volumeName);
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c = provider.query(uri, mColumns,
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PATH_WHERE, new String[] {path}, null, null);
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if (c != null && !c.moveToNext()) {
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c.close();
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c = null;
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}
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} catch (IllegalArgumentException e) {
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return MtpConstants.RESPONSE_INVALID_OBJECT_PROP_CODE;
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} catch (RemoteException e) {
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Log.e(TAG, "Mediaprovider lookup failed");
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}
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}
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switch (property.code) {
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case MtpConstants.PROPERTY_PROTECTION_STATUS:
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// protection status is always 0
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list.append(id, property.code, property.type, 0);
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break;
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case MtpConstants.PROPERTY_NAME:
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case MtpConstants.PROPERTY_OBJECT_FILE_NAME:
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case MtpConstants.PROPERTY_DISPLAY_NAME:
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list.append(id, property.code, object.getName());
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break;
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case MtpConstants.PROPERTY_DATE_MODIFIED:
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case MtpConstants.PROPERTY_DATE_ADDED:
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// convert from seconds to DateTime
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list.append(id, property.code,
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format_date_time(object.getModifiedTime()));
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break;
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case MtpConstants.PROPERTY_STORAGE_ID:
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list.append(id, property.code, property.type, object.getStorageId());
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break;
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case MtpConstants.PROPERTY_OBJECT_FORMAT:
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list.append(id, property.code, property.type, object.getFormat());
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break;
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case MtpConstants.PROPERTY_OBJECT_SIZE:
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list.append(id, property.code, property.type, object.getSize());
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break;
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case MtpConstants.PROPERTY_PARENT_OBJECT:
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list.append(id, property.code, property.type,
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object.getParent().isRoot() ? 0 : object.getParent().getId());
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break;
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case MtpConstants.PROPERTY_PERSISTENT_UID:
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// The persistent uid must be unique and never reused among all objects,
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// and remain the same between sessions.
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long puid = (object.getPath().toString().hashCode() << 32)
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+ object.getModifiedTime();
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list.append(id, property.code, property.type, puid);
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break;
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case MtpConstants.PROPERTY_ORIGINAL_RELEASE_DATE:
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// release date is stored internally as just the year
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int year = 0;
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if (c != null)
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year = c.getInt(property.column);
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String dateTime = Integer.toString(year) + "0101T000000";
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list.append(id, property.code, dateTime);
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break;
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case MtpConstants.PROPERTY_TRACK:
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int track = 0;
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if (c != null)
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track = c.getInt(property.column);
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list.append(id, property.code, MtpConstants.TYPE_UINT16,
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track % 1000);
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break;
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case MtpConstants.PROPERTY_AUDIO_WAVE_CODEC:
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case MtpConstants.PROPERTY_AUDIO_BITRATE:
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case MtpConstants.PROPERTY_SAMPLE_RATE:
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// we don't have these in our database, so return 0
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list.append(id, property.code, MtpConstants.TYPE_UINT32, 0);
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break;
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case MtpConstants.PROPERTY_BITRATE_TYPE:
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case MtpConstants.PROPERTY_NUMBER_OF_CHANNELS:
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// we don't have these in our database, so return 0
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list.append(id, property.code, MtpConstants.TYPE_UINT16, 0);
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break;
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default:
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switch(property.type) {
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case MtpConstants.TYPE_UNDEFINED:
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list.append(id, property.code, property.type, 0);
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break;
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case MtpConstants.TYPE_STR:
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String value = "";
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if (c != null)
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value = c.getString(property.column);
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list.append(id, property.code, value);
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break;
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default:
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long longValue = 0L;
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if (c != null)
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longValue = c.getLong(property.column);
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list.append(id, property.code, property.type, longValue);
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}
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}
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}
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if (c != null)
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c.close();
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return MtpConstants.RESPONSE_OK;
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}
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private native String format_date_time(long seconds);
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}
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