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android / platform / packages / providers / MediaProvider / 948eeae9166384b32b5b3f420594fcef1f8129c9 / . / src / com / android / providers / media / MediaProvider.java
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/*
* Copyright (C) 2006 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.media;
import android.app.SearchManager;
import android.content.BroadcastReceiver;
import android.content.ContentProvider;
import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.OperationApplicationException;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.MatrixCursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.MediaScanner;
import android.media.MiniThumbFile;
import android.net.Uri;
import android.os.Binder;
import android.os.Environment;
import android.os.FileUtils;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.MemoryFile;
import android.os.Message;
import android.os.ParcelFileDescriptor;
import android.os.Process;
import android.provider.BaseColumns;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.MediaColumns;
import android.provider.MediaStore.Video;
import android.provider.MediaStore.Images.ImageColumns;
import android.text.TextUtils;
import android.util.Log;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.OutputStream;
import java.text.Collator;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Stack;
/**
* Media content provider. See {@link android.provider.MediaStore} for details.
* Separate databases are kept for each external storage card we see (using the
* card's ID as an index). The content visible at content://media/external/...
* changes with the card.
*/
public class MediaProvider extends ContentProvider {
private static final Uri MEDIA_URI = Uri.parse("content://media");
private static final Uri ALBUMART_URI = Uri.parse("content://media/external/audio/albumart");
private static final int ALBUM_THUMB = 1;
private static final int IMAGE_THUMB = 2;
private static final HashMap<String, String> sArtistAlbumsMap = new HashMap<String, String>();
private static final HashMap<String, String> sFolderArtMap = new HashMap<String, String>();
// A HashSet of paths that are pending creation of album art thumbnails.
private HashSet mPendingThumbs = new HashSet();
// A Stack of outstanding thumbnail requests.
private Stack mThumbRequestStack = new Stack();
// The lock of mMediaThumbQueue protects both mMediaThumbQueue and mCurrentThumbRequest.
private MediaThumbRequest mCurrentThumbRequest = null;
private PriorityQueue<MediaThumbRequest> mMediaThumbQueue =
new PriorityQueue<MediaThumbRequest>(MediaThumbRequest.PRIORITY_NORMAL,
MediaThumbRequest.getComparator());
// For compatibility with the approximately 0 apps that used mediaprovider search in
// releases 1.0, 1.1 or 1.5
private String[] mSearchColsLegacy = new String[] {
android.provider.BaseColumns._ID,
MediaStore.Audio.Media.MIME_TYPE,
"(CASE WHEN grouporder=1 THEN " + R.drawable.ic_search_category_music_artist +
" ELSE CASE WHEN grouporder=2 THEN " + R.drawable.ic_search_category_music_album +
" ELSE " + R.drawable.ic_search_category_music_song + " END END" +
") AS " + SearchManager.SUGGEST_COLUMN_ICON_1,
"0 AS " + SearchManager.SUGGEST_COLUMN_ICON_2,
"text1 AS " + SearchManager.SUGGEST_COLUMN_TEXT_1,
"text1 AS " + SearchManager.SUGGEST_COLUMN_QUERY,
"CASE when grouporder=1 THEN data1 ELSE artist END AS data1",
"CASE when grouporder=1 THEN data2 ELSE " +
"CASE WHEN grouporder=2 THEN NULL ELSE album END END AS data2",
"match as ar",
SearchManager.SUGGEST_COLUMN_INTENT_DATA,
"grouporder",
"NULL AS itemorder" // We should be sorting by the artist/album/title keys, but that
// column is not available here, and the list is already sorted.
};
private String[] mSearchColsFancy = new String[] {
android.provider.BaseColumns._ID,
MediaStore.Audio.Media.MIME_TYPE,
MediaStore.Audio.Artists.ARTIST,
MediaStore.Audio.Albums.ALBUM,
MediaStore.Audio.Media.TITLE,
"data1",
"data2",
};
// If this array gets changed, please update the constant below to point to the correct item.
private String[] mSearchColsBasic = new String[] {
android.provider.BaseColumns._ID,
MediaStore.Audio.Media.MIME_TYPE,
"(CASE WHEN grouporder=1 THEN " + R.drawable.ic_search_category_music_artist +
" ELSE CASE WHEN grouporder=2 THEN " + R.drawable.ic_search_category_music_album +
" ELSE " + R.drawable.ic_search_category_music_song + " END END" +
") AS " + SearchManager.SUGGEST_COLUMN_ICON_1,
"text1 AS " + SearchManager.SUGGEST_COLUMN_TEXT_1,
"text1 AS " + SearchManager.SUGGEST_COLUMN_QUERY,
"(CASE WHEN grouporder=1 THEN '%1'" + // %1 gets replaced with localized string.
" ELSE CASE WHEN grouporder=3 THEN artist || ' - ' || album" +
" ELSE CASE WHEN text2!='" + MediaStore.UNKNOWN_STRING + "' THEN text2" +
" ELSE NULL END END END) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_INTENT_DATA
};
// Position of the TEXT_2 item in the above array.
private final int SEARCH_COLUMN_BASIC_TEXT2 = 5;
private Uri mAlbumArtBaseUri = Uri.parse("content://media/external/audio/albumart");
private BroadcastReceiver mUnmountReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_MEDIA_EJECT)) {
// Remove the external volume and then notify all cursors backed by
// data on that volume
detachVolume(Uri.parse("content://media/external"));
sFolderArtMap.clear();
MiniThumbFile.reset();
}
}
};
/**
* Wrapper class for a specific database (associated with one particular
* external card, or with internal storage). Can open the actual database
* on demand, create and upgrade the schema, etc.
*/
private static final class DatabaseHelper extends SQLiteOpenHelper {
final Context mContext;
final boolean mInternal; // True if this is the internal database
// In memory caches of artist and album data.
HashMap<String, Long> mArtistCache = new HashMap<String, Long>();
HashMap<String, Long> mAlbumCache = new HashMap<String, Long>();
public DatabaseHelper(Context context, String name, boolean internal) {
super(context, name, null, DATABASE_VERSION);
mContext = context;
mInternal = internal;
}
/**
* Creates database the first time we try to open it.
*/
@Override
public void onCreate(final SQLiteDatabase db) {
updateDatabase(db, mInternal, 0, DATABASE_VERSION);
}
/**
* Updates the database format when a new content provider is used
* with an older database format.
*/
@Override
public void onUpgrade(final SQLiteDatabase db, final int oldV, final int newV) {
updateDatabase(db, mInternal, oldV, newV);
}
/**
* Touch this particular database and garbage collect old databases.
* An LRU cache system is used to clean up databases for old external
* storage volumes.
*/
@Override
public void onOpen(SQLiteDatabase db) {
if (mInternal) return; // The internal database is kept separately.
// touch the database file to show it is most recently used
File file = new File(db.getPath());
long now = System.currentTimeMillis();
file.setLastModified(now);
// delete least recently used databases if we are over the limit
String[] databases = mContext.databaseList();
int count = databases.length;
int limit = MAX_EXTERNAL_DATABASES;
// delete external databases that have not been used in the past two months
long twoMonthsAgo = now - OBSOLETE_DATABASE_DB;
for (int i = 0; i < databases.length; i++) {
File other = mContext.getDatabasePath(databases[i]);
if (INTERNAL_DATABASE_NAME.equals(databases[i]) || file.equals(other)) {
databases[i] = null;
count--;
if (file.equals(other)) {
// reduce limit to account for the existence of the database we
// are about to open, which we removed from the list.
limit--;
}
} else {
long time = other.lastModified();
if (time < twoMonthsAgo) {
if (LOCAL_LOGV) Log.v(TAG, "Deleting old database " + databases[i]);
mContext.deleteDatabase(databases[i]);
databases[i] = null;
count--;
}
}
}
// delete least recently used databases until
// we are no longer over the limit
while (count > limit) {
int lruIndex = -1;
long lruTime = 0;
for (int i = 0; i < databases.length; i++) {
if (databases[i] != null) {
long time = mContext.getDatabasePath(databases[i]).lastModified();
if (lruTime == 0 || time < lruTime) {
lruIndex = i;
lruTime = time;
}
}
}
// delete least recently used database
if (lruIndex != -1) {
if (LOCAL_LOGV) Log.v(TAG, "Deleting old database " + databases[lruIndex]);
mContext.deleteDatabase(databases[lruIndex]);
databases[lruIndex] = null;
count--;
}
}
}
}
@Override
public boolean onCreate() {
sArtistAlbumsMap.put(MediaStore.Audio.Albums._ID, "audio.album_id AS " +
MediaStore.Audio.Albums._ID);
sArtistAlbumsMap.put(MediaStore.Audio.Albums.ALBUM, "album");
sArtistAlbumsMap.put(MediaStore.Audio.Albums.ALBUM_KEY, "album_key");
sArtistAlbumsMap.put(MediaStore.Audio.Albums.FIRST_YEAR, "MIN(year) AS " +
MediaStore.Audio.Albums.FIRST_YEAR);
sArtistAlbumsMap.put(MediaStore.Audio.Albums.LAST_YEAR, "MAX(year) AS " +
MediaStore.Audio.Albums.LAST_YEAR);
sArtistAlbumsMap.put(MediaStore.Audio.Media.ARTIST, "artist");
sArtistAlbumsMap.put(MediaStore.Audio.Media.ARTIST_ID, "artist");
sArtistAlbumsMap.put(MediaStore.Audio.Media.ARTIST_KEY, "artist_key");
sArtistAlbumsMap.put(MediaStore.Audio.Albums.NUMBER_OF_SONGS, "count(*) AS " +
MediaStore.Audio.Albums.NUMBER_OF_SONGS);
sArtistAlbumsMap.put(MediaStore.Audio.Albums.ALBUM_ART, "album_art._data AS " +
MediaStore.Audio.Albums.ALBUM_ART);
mSearchColsBasic[SEARCH_COLUMN_BASIC_TEXT2] =
mSearchColsBasic[SEARCH_COLUMN_BASIC_TEXT2].replaceAll(
"%1", getContext().getString(R.string.artist_label));
mDatabases = new HashMap<String, DatabaseHelper>();
attachVolume(INTERNAL_VOLUME);
IntentFilter iFilter = new IntentFilter(Intent.ACTION_MEDIA_EJECT);
iFilter.addDataScheme("file");
getContext().registerReceiver(mUnmountReceiver, iFilter);
// open external database if external storage is mounted
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state) ||
Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
attachVolume(EXTERNAL_VOLUME);
}
HandlerThread ht = new HandlerThread("thumbs thread", Process.THREAD_PRIORITY_BACKGROUND);
ht.start();
mThumbHandler = new Handler(ht.getLooper()) {
@Override
public void handleMessage(Message msg) {
if (msg.what == IMAGE_THUMB) {
synchronized (mMediaThumbQueue) {
mCurrentThumbRequest = mMediaThumbQueue.poll();
}
if (mCurrentThumbRequest == null) {
Log.w(TAG, "Have message but no request?");
} else {
try {
File origFile = new File(mCurrentThumbRequest.mPath);
if (origFile.exists() && origFile.length() > 0) {
mCurrentThumbRequest.execute();
} else {
// original file hasn't been stored yet
synchronized (mMediaThumbQueue) {
Log.w(TAG, "original file hasn't been stored yet: " + mCurrentThumbRequest.mPath);
}
}
} catch (IOException ex) {
Log.w(TAG, ex);
} catch (UnsupportedOperationException ex) {
// This could happen if we unplug the sd card during insert/update/delete
// See getDatabaseForUri.
Log.w(TAG, ex);
} finally {
synchronized (mCurrentThumbRequest) {
mCurrentThumbRequest.mState = MediaThumbRequest.State.DONE;
mCurrentThumbRequest.notifyAll();
}
}
}
} else if (msg.what == ALBUM_THUMB) {
ThumbData d;
synchronized (mThumbRequestStack) {
d = (ThumbData)mThumbRequestStack.pop();
}
makeThumbInternal(d);
synchronized (mPendingThumbs) {
mPendingThumbs.remove(d.path);
}
}
}
};
return true;
}
/**
* This method takes care of updating all the tables in the database to the
* current version, creating them if necessary.
* This method can only update databases at schema 63 or higher, which was
* created August 1, 2008. Older database will be cleared and recreated.
* @param db Database
* @param internal True if this is the internal media database
*/
private static void updateDatabase(SQLiteDatabase db, boolean internal,
int fromVersion, int toVersion) {
// sanity checks
if (toVersion != DATABASE_VERSION) {
Log.e(TAG, "Illegal update request. Got " + toVersion + ", expected " +
DATABASE_VERSION);
throw new IllegalArgumentException();
} else if (fromVersion > toVersion) {
Log.e(TAG, "Illegal update request: can't downgrade from " + fromVersion +
" to " + toVersion + ". Did you forget to wipe data?");
throw new IllegalArgumentException();
}
// Revisions 84-86 were a failed attempt at supporting the "album artist" id3 tag
// We can't downgrade from those revisions, so start over.
// (the initial change to do this was wrong, so now we actually need to start over
// if the database version is 84-89)
if (fromVersion < 63 || (fromVersion >= 84 && fromVersion <= 89)) {
fromVersion = 63;
// Drop everything and start over.
Log.i(TAG, "Upgrading media database from version " +
fromVersion + " to " + toVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS images");
db.execSQL("DROP TRIGGER IF EXISTS images_cleanup");
db.execSQL("DROP TABLE IF EXISTS thumbnails");
db.execSQL("DROP TRIGGER IF EXISTS thumbnails_cleanup");
db.execSQL("DROP TABLE IF EXISTS audio_meta");
db.execSQL("DROP TABLE IF EXISTS artists");
db.execSQL("DROP TABLE IF EXISTS albums");
db.execSQL("DROP TABLE IF EXISTS album_art");
db.execSQL("DROP VIEW IF EXISTS artist_info");
db.execSQL("DROP VIEW IF EXISTS album_info");
db.execSQL("DROP VIEW IF EXISTS artists_albums_map");
db.execSQL("DROP TRIGGER IF EXISTS audio_meta_cleanup");
db.execSQL("DROP TABLE IF EXISTS audio_genres");
db.execSQL("DROP TABLE IF EXISTS audio_genres_map");
db.execSQL("DROP TRIGGER IF EXISTS audio_genres_cleanup");
db.execSQL("DROP TABLE IF EXISTS audio_playlists");
db.execSQL("DROP TABLE IF EXISTS audio_playlists_map");
db.execSQL("DROP TRIGGER IF EXISTS audio_playlists_cleanup");
db.execSQL("DROP TRIGGER IF EXISTS albumart_cleanup1");
db.execSQL("DROP TRIGGER IF EXISTS albumart_cleanup2");
db.execSQL("DROP TABLE IF EXISTS video");
db.execSQL("DROP TRIGGER IF EXISTS video_cleanup");
db.execSQL("CREATE TABLE IF NOT EXISTS images (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT," +
"_size INTEGER," +
"_display_name TEXT," +
"mime_type TEXT," +
"title TEXT," +
"date_added INTEGER," +
"date_modified INTEGER," +
"description TEXT," +
"picasa_id TEXT," +
"isprivate INTEGER," +
"latitude DOUBLE," +
"longitude DOUBLE," +
"datetaken INTEGER," +
"orientation INTEGER," +
"mini_thumb_magic INTEGER," +
"bucket_id TEXT," +
"bucket_display_name TEXT" +
");");
db.execSQL("CREATE INDEX IF NOT EXISTS mini_thumb_magic_index on images(mini_thumb_magic);");
db.execSQL("CREATE TRIGGER IF NOT EXISTS images_cleanup DELETE ON images " +
"BEGIN " +
"DELETE FROM thumbnails WHERE image_id = old._id;" +
"SELECT _DELETE_FILE(old._data);" +
"END");
// create image thumbnail table
db.execSQL("CREATE TABLE IF NOT EXISTS thumbnails (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT," +
"image_id INTEGER," +
"kind INTEGER," +
"width INTEGER," +
"height INTEGER" +
");");
db.execSQL("CREATE INDEX IF NOT EXISTS image_id_index on thumbnails(image_id);");
db.execSQL("CREATE TRIGGER IF NOT EXISTS thumbnails_cleanup DELETE ON thumbnails " +
"BEGIN " +
"SELECT _DELETE_FILE(old._data);" +
"END");
// Contains meta data about audio files
db.execSQL("CREATE TABLE IF NOT EXISTS audio_meta (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT UNIQUE NOT NULL," +
"_display_name TEXT," +
"_size INTEGER," +
"mime_type TEXT," +
"date_added INTEGER," +
"date_modified INTEGER," +
"title TEXT NOT NULL," +
"title_key TEXT NOT NULL," +
"duration INTEGER," +
"artist_id INTEGER," +
"composer TEXT," +
"album_id INTEGER," +
"track INTEGER," + // track is an integer to allow proper sorting
"year INTEGER CHECK(year!=0)," +
"is_ringtone INTEGER," +
"is_music INTEGER," +
"is_alarm INTEGER," +
"is_notification INTEGER" +
");");
// Contains a sort/group "key" and the preferred display name for artists
db.execSQL("CREATE TABLE IF NOT EXISTS artists (" +
"artist_id INTEGER PRIMARY KEY," +
"artist_key TEXT NOT NULL UNIQUE," +
"artist TEXT NOT NULL" +
");");
// Contains a sort/group "key" and the preferred display name for albums
db.execSQL("CREATE TABLE IF NOT EXISTS albums (" +
"album_id INTEGER PRIMARY KEY," +
"album_key TEXT NOT NULL UNIQUE," +
"album TEXT NOT NULL" +
");");
db.execSQL("CREATE TABLE IF NOT EXISTS album_art (" +
"album_id INTEGER PRIMARY KEY," +
"_data TEXT" +
");");
recreateAudioView(db);
// Provides some extra info about artists, like the number of tracks
// and albums for this artist
db.execSQL("CREATE VIEW IF NOT EXISTS artist_info AS " +
"SELECT artist_id AS _id, artist, artist_key, " +
"COUNT(DISTINCT album) AS number_of_albums, " +
"COUNT(*) AS number_of_tracks FROM audio WHERE is_music=1 "+
"GROUP BY artist_key;");
// Provides extra info albums, such as the number of tracks
db.execSQL("CREATE VIEW IF NOT EXISTS album_info AS " +
"SELECT audio.album_id AS _id, album, album_key, " +
"MIN(year) AS minyear, " +
"MAX(year) AS maxyear, artist, artist_id, artist_key, " +
"count(*) AS " + MediaStore.Audio.Albums.NUMBER_OF_SONGS +
",album_art._data AS album_art" +
" FROM audio LEFT OUTER JOIN album_art ON audio.album_id=album_art.album_id" +
" WHERE is_music=1 GROUP BY audio.album_id;");
// For a given artist_id, provides the album_id for albums on
// which the artist appears.
db.execSQL("CREATE VIEW IF NOT EXISTS artists_albums_map AS " +
"SELECT DISTINCT artist_id, album_id FROM audio_meta;");
/*
* Only external media volumes can handle genres, playlists, etc.
*/
if (!internal) {
// Cleans up when an audio file is deleted
db.execSQL("CREATE TRIGGER IF NOT EXISTS audio_meta_cleanup DELETE ON audio_meta " +
"BEGIN " +
"DELETE FROM audio_genres_map WHERE audio_id = old._id;" +
"DELETE FROM audio_playlists_map WHERE audio_id = old._id;" +
"END");
// Contains audio genre definitions
db.execSQL("CREATE TABLE IF NOT EXISTS audio_genres (" +
"_id INTEGER PRIMARY KEY," +
"name TEXT NOT NULL" +
");");
// Contiains mappings between audio genres and audio files
db.execSQL("CREATE TABLE IF NOT EXISTS audio_genres_map (" +
"_id INTEGER PRIMARY KEY," +
"audio_id INTEGER NOT NULL," +
"genre_id INTEGER NOT NULL" +
");");
// Cleans up when an audio genre is delete
db.execSQL("CREATE TRIGGER IF NOT EXISTS audio_genres_cleanup DELETE ON audio_genres " +
"BEGIN " +
"DELETE FROM audio_genres_map WHERE genre_id = old._id;" +
"END");
// Contains audio playlist definitions
db.execSQL("CREATE TABLE IF NOT EXISTS audio_playlists (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT," + // _data is path for file based playlists, or null
"name TEXT NOT NULL," +
"date_added INTEGER," +
"date_modified INTEGER" +
");");
// Contains mappings between audio playlists and audio files
db.execSQL("CREATE TABLE IF NOT EXISTS audio_playlists_map (" +
"_id INTEGER PRIMARY KEY," +
"audio_id INTEGER NOT NULL," +
"playlist_id INTEGER NOT NULL," +
"play_order INTEGER NOT NULL" +
");");
// Cleans up when an audio playlist is deleted
db.execSQL("CREATE TRIGGER IF NOT EXISTS audio_playlists_cleanup DELETE ON audio_playlists " +
"BEGIN " +
"DELETE FROM audio_playlists_map WHERE playlist_id = old._id;" +
"SELECT _DELETE_FILE(old._data);" +
"END");
// Cleans up album_art table entry when an album is deleted
db.execSQL("CREATE TRIGGER IF NOT EXISTS albumart_cleanup1 DELETE ON albums " +
"BEGIN " +
"DELETE FROM album_art WHERE album_id = old.album_id;" +
"END");
// Cleans up album_art when an album is deleted
db.execSQL("CREATE TRIGGER IF NOT EXISTS albumart_cleanup2 DELETE ON album_art " +
"BEGIN " +
"SELECT _DELETE_FILE(old._data);" +
"END");
}
// Contains meta data about video files
db.execSQL("CREATE TABLE IF NOT EXISTS video (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT NOT NULL," +
"_display_name TEXT," +
"_size INTEGER," +
"mime_type TEXT," +
"date_added INTEGER," +
"date_modified INTEGER," +
"title TEXT," +
"duration INTEGER," +
"artist TEXT," +
"album TEXT," +
"resolution TEXT," +
"description TEXT," +
"isprivate INTEGER," + // for YouTube videos
"tags TEXT," + // for YouTube videos
"category TEXT," + // for YouTube videos
"language TEXT," + // for YouTube videos
"mini_thumb_data TEXT," +
"latitude DOUBLE," +
"longitude DOUBLE," +
"datetaken INTEGER," +
"mini_thumb_magic INTEGER" +
");");
db.execSQL("CREATE TRIGGER IF NOT EXISTS video_cleanup DELETE ON video " +
"BEGIN " +
"SELECT _DELETE_FILE(old._data);" +
"END");
}
// At this point the database is at least at schema version 63 (it was
// either created at version 63 by the code above, or was already at
// version 63 or later)
if (fromVersion < 64) {
// create the index that updates the database to schema version 64
db.execSQL("CREATE INDEX IF NOT EXISTS sort_index on images(datetaken ASC, _id ASC);");
}
/*
* Android 1.0 shipped with database version 64
*/
if (fromVersion < 65) {
// create the index that updates the database to schema version 65
db.execSQL("CREATE INDEX IF NOT EXISTS titlekey_index on audio_meta(title_key);");
}
// In version 66, originally we updateBucketNames(db, "images"),
// but we need to do it in version 89 and therefore save the update here.
if (fromVersion < 67) {
// create the indices that update the database to schema version 67
db.execSQL("CREATE INDEX IF NOT EXISTS albumkey_index on albums(album_key);");
db.execSQL("CREATE INDEX IF NOT EXISTS artistkey_index on artists(artist_key);");
}
if (fromVersion < 68) {
// Create bucket_id and bucket_display_name columns for the video table.
db.execSQL("ALTER TABLE video ADD COLUMN bucket_id TEXT;");
db.execSQL("ALTER TABLE video ADD COLUMN bucket_display_name TEXT");
// In version 68, originally we updateBucketNames(db, "video"),
// but we need to do it in version 89 and therefore save the update here.
}
if (fromVersion < 69) {
updateDisplayName(db, "images");
}
if (fromVersion < 70) {
// Create bookmark column for the video table.
db.execSQL("ALTER TABLE video ADD COLUMN bookmark INTEGER;");
}
if (fromVersion < 71) {
// There is no change to the database schema, however a code change
// fixed parsing of metadata for certain files bought from the
// iTunes music store, so we want to rescan files that might need it.
// We do this by clearing the modification date in the database for
// those files, so that the media scanner will see them as updated
// and rescan them.
db.execSQL("UPDATE audio_meta SET date_modified=0 WHERE _id IN (" +
"SELECT _id FROM audio where mime_type='audio/mp4' AND " +
"artist='" + MediaStore.UNKNOWN_STRING + "' AND " +
"album='" + MediaStore.UNKNOWN_STRING + "'" +
");");
}
if (fromVersion < 72) {
// Create is_podcast and bookmark columns for the audio table.
db.execSQL("ALTER TABLE audio_meta ADD COLUMN is_podcast INTEGER;");
db.execSQL("UPDATE audio_meta SET is_podcast=1 WHERE _data LIKE '%/podcasts/%';");
db.execSQL("UPDATE audio_meta SET is_music=0 WHERE is_podcast=1" +
" AND _data NOT LIKE '%/music/%';");
db.execSQL("ALTER TABLE audio_meta ADD COLUMN bookmark INTEGER;");
// New columns added to tables aren't visible in views on those tables
// without opening and closing the database (or using the 'vacuum' command,
// which we can't do here because all this code runs inside a transaction).
// To work around this, we drop and recreate the affected view and trigger.
recreateAudioView(db);
}
/*
* Android 1.5 shipped with database version 72
*/
if (fromVersion < 73) {
// There is no change to the database schema, but we now do case insensitive
// matching of folder names when determining whether something is music, a
// ringtone, podcast, etc, so we might need to reclassify some files.
db.execSQL("UPDATE audio_meta SET is_music=1 WHERE is_music=0 AND " +
"_data LIKE '%/music/%';");
db.execSQL("UPDATE audio_meta SET is_ringtone=1 WHERE is_ringtone=0 AND " +
"_data LIKE '%/ringtones/%';");
db.execSQL("UPDATE audio_meta SET is_notification=1 WHERE is_notification=0 AND " +
"_data LIKE '%/notifications/%';");
db.execSQL("UPDATE audio_meta SET is_alarm=1 WHERE is_alarm=0 AND " +
"_data LIKE '%/alarms/%';");
db.execSQL("UPDATE audio_meta SET is_podcast=1 WHERE is_podcast=0 AND " +
"_data LIKE '%/podcasts/%';");
}
if (fromVersion < 74) {
// This view is used instead of the audio view by the union below, to force
// sqlite to use the title_key index. This greatly reduces memory usage
// (no separate copy pass needed for sorting, which could cause errors on
// large datasets) and improves speed (by about 35% on a large dataset)
db.execSQL("CREATE VIEW IF NOT EXISTS searchhelpertitle AS SELECT * FROM audio " +
"ORDER BY title_key;");
db.execSQL("CREATE VIEW IF NOT EXISTS search AS " +
"SELECT _id," +
"'artist' AS mime_type," +
"artist," +
"NULL AS album," +
"NULL AS title," +
"artist AS text1," +
"NULL AS text2," +
"number_of_albums AS data1," +
"number_of_tracks AS data2," +
"artist_key AS match," +
"'content://media/external/audio/artists/'||_id AS suggest_intent_data," +
"1 AS grouporder " +
"FROM artist_info WHERE (artist!='" + MediaStore.UNKNOWN_STRING + "') " +
"UNION ALL " +
"SELECT _id," +
"'album' AS mime_type," +
"artist," +
"album," +
"NULL AS title," +
"album AS text1," +
"artist AS text2," +
"NULL AS data1," +
"NULL AS data2," +
"artist_key||' '||album_key AS match," +
"'content://media/external/audio/albums/'||_id AS suggest_intent_data," +
"2 AS grouporder " +
"FROM album_info WHERE (album!='" + MediaStore.UNKNOWN_STRING + "') " +
"UNION ALL " +
"SELECT searchhelpertitle._id AS _id," +
"mime_type," +
"artist," +
"album," +
"title," +
"title AS text1," +
"artist AS text2," +
"NULL AS data1," +
"NULL AS data2," +
"artist_key||' '||album_key||' '||title_key AS match," +
"'content://media/external/audio/media/'||searchhelpertitle._id AS " +
"suggest_intent_data," +
"3 AS grouporder " +
"FROM searchhelpertitle WHERE (title != '') "
);
}
if (fromVersion < 75) {
// Force a rescan of the audio entries so we can apply the new logic to
// distinguish same-named albums.
db.execSQL("UPDATE audio_meta SET date_modified=0;");
db.execSQL("DELETE FROM albums");
}
if (fromVersion < 76) {
// We now ignore double quotes when building the key, so we have to remove all of them
// from existing keys.
db.execSQL("UPDATE audio_meta SET title_key=" +
"REPLACE(title_key,x'081D08C29F081D',x'081D') " +
"WHERE title_key LIKE '%'||x'081D08C29F081D'||'%';");
db.execSQL("UPDATE albums SET album_key=" +
"REPLACE(album_key,x'081D08C29F081D',x'081D') " +
"WHERE album_key LIKE '%'||x'081D08C29F081D'||'%';");
db.execSQL("UPDATE artists SET artist_key=" +
"REPLACE(artist_key,x'081D08C29F081D',x'081D') " +
"WHERE artist_key LIKE '%'||x'081D08C29F081D'||'%';");
}
/*
* Android 1.6 shipped with database version 76
*/
if (fromVersion < 77) {
// create video thumbnail table
db.execSQL("CREATE TABLE IF NOT EXISTS videothumbnails (" +
"_id INTEGER PRIMARY KEY," +
"_data TEXT," +
"video_id INTEGER," +
"kind INTEGER," +
"width INTEGER," +
"height INTEGER" +
");");
db.execSQL("CREATE INDEX IF NOT EXISTS video_id_index on videothumbnails(video_id);");
db.execSQL("CREATE TRIGGER IF NOT EXISTS videothumbnails_cleanup DELETE ON videothumbnails " +
"BEGIN " +
"SELECT _DELETE_FILE(old._data);" +
"END");
}
/*
* Android 2.0 and 2.0.1 shipped with database version 77
*/
if (fromVersion < 78) {
// Force a rescan of the video entries so we can update
// latest changed DATE_TAKEN units (in milliseconds).
db.execSQL("UPDATE video SET date_modified=0;");
}
/*
* Android 2.1 shipped with database version 78
*/
if (fromVersion < 79) {
// move /sdcard/albumthumbs to
// /sdcard/Android/data/com.android.providers.media/albumthumbs,
// and update the database accordingly
String storageroot = Environment.getExternalStorageDirectory().getAbsolutePath();
String oldthumbspath = storageroot + "/albumthumbs";
String newthumbspath = storageroot + "/" + ALBUM_THUMB_FOLDER;
File thumbsfolder = new File(oldthumbspath);
if (thumbsfolder.exists()) {
// move folder to its new location
File newthumbsfolder = new File(newthumbspath);
newthumbsfolder.getParentFile().mkdirs();
if(thumbsfolder.renameTo(newthumbsfolder)) {
// update the database
db.execSQL("UPDATE album_art SET _data=REPLACE(_data, '" +
oldthumbspath + "','" + newthumbspath + "');");
}
}
}
if (fromVersion < 80) {
// Force rescan of image entries to update DATE_TAKEN as UTC timestamp.
db.execSQL("UPDATE images SET date_modified=0;");
}
if (fromVersion < 81 && !internal) {
// Delete entries starting with /mnt/sdcard. This is for the benefit
// of users running builds between 2.0.1 and 2.1 final only, since
// users updating from 2.0 or earlier will not have such entries.
// First we need to update the _data fields in the affected tables, since
// otherwise deleting the entries will also delete the underlying files
// (via a trigger), and we want to keep them.
db.execSQL("UPDATE audio_playlists SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE images SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE video SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE videothumbnails SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE thumbnails SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE album_art SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
db.execSQL("UPDATE audio_meta SET _data='////' WHERE _data LIKE '/mnt/sdcard/%';");
// Once the paths have been renamed, we can safely delete the entries
db.execSQL("DELETE FROM audio_playlists WHERE _data IS '////';");
db.execSQL("DELETE FROM images WHERE _data IS '////';");
db.execSQL("DELETE FROM video WHERE _data IS '////';");
db.execSQL("DELETE FROM videothumbnails WHERE _data IS '////';");
db.execSQL("DELETE FROM thumbnails WHERE _data IS '////';");
db.execSQL("DELETE FROM audio_meta WHERE _data IS '////';");
db.execSQL("DELETE FROM album_art WHERE _data IS '////';");
// rename existing entries starting with /sdcard to /mnt/sdcard
db.execSQL("UPDATE audio_meta" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE audio_playlists" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE images" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE video" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE videothumbnails" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE thumbnails" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
db.execSQL("UPDATE album_art" +
" SET _data='/mnt/sdcard'||SUBSTR(_data,8) WHERE _data LIKE '/sdcard/%';");
// Delete albums and artists, then clear the modification time on songs, which
// will cause the media scanner to rescan everything, rebuilding the artist and
// album tables along the way, while preserving playlists.
// We need this rescan because ICU also changed, and now generates different
// collation keys
db.execSQL("DELETE from albums");
db.execSQL("DELETE from artists");
db.execSQL("UPDATE audio_meta SET date_modified=0;");
}
if (fromVersion < 82) {
// recreate this view with the correct "group by" specifier
db.execSQL("DROP VIEW IF EXISTS artist_info");
db.execSQL("CREATE VIEW IF NOT EXISTS artist_info AS " +
"SELECT artist_id AS _id, artist, artist_key, " +
"COUNT(DISTINCT album_key) AS number_of_albums, " +
"COUNT(*) AS number_of_tracks FROM audio WHERE is_music=1 "+
"GROUP BY artist_key;");
}
/* we skipped over version 83, and reverted versions 84, 85 and 86 */
if (fromVersion < 87) {
// The fastscroll thumb needs an index on the strings being displayed,
// otherwise the queries it does to determine the correct position
// becomes really inefficient
db.execSQL("CREATE INDEX IF NOT EXISTS title_idx on audio_meta(title);");
db.execSQL("CREATE INDEX IF NOT EXISTS artist_idx on artists(artist);");
db.execSQL("CREATE INDEX IF NOT EXISTS album_idx on albums(album);");
}
if (fromVersion < 88) {
// Clean up a few more things from versions 84/85/86, and recreate
// the few things worth keeping from those changes.
db.execSQL("DROP TRIGGER IF EXISTS albums_update1;");
db.execSQL("DROP TRIGGER IF EXISTS albums_update2;");
db.execSQL("DROP TRIGGER IF EXISTS albums_update3;");
db.execSQL("DROP TRIGGER IF EXISTS albums_update4;");
db.execSQL("DROP TRIGGER IF EXISTS artist_update1;");
db.execSQL("DROP TRIGGER IF EXISTS artist_update2;");
db.execSQL("DROP TRIGGER IF EXISTS artist_update3;");
db.execSQL("DROP TRIGGER IF EXISTS artist_update4;");
db.execSQL("DROP VIEw IF EXISTS album_artists;");
db.execSQL("CREATE INDEX IF NOT EXISTS album_id_idx on audio_meta(album_id);");
db.execSQL("CREATE INDEX IF NOT EXISTS artist_id_idx on audio_meta(artist_id);");
// For a given artist_id, provides the album_id for albums on
// which the artist appears.
db.execSQL("CREATE VIEW IF NOT EXISTS artists_albums_map AS " +
"SELECT DISTINCT artist_id, album_id FROM audio_meta;");
}
if (fromVersion < 89) {
updateBucketNames(db, "images");
updateBucketNames(db, "video");
}
if (fromVersion < 91) {
// Never query by mini_thumb_magic_index
db.execSQL("DROP INDEX IF EXISTS mini_thumb_magic_index");
// sort the items by taken date in each bucket
db.execSQL("CREATE INDEX IF NOT EXISTS image_bucket_index ON images(bucket_id, datetaken)");
db.execSQL("CREATE INDEX IF NOT EXISTS video_bucket_index ON video(bucket_id, datetaken)");
}
if (fromVersion < 92) {
// Delete albums and artists, then clear the modification time on songs, which
// will cause the media scanner to rescan everything, rebuilding the artist and
// album tables along the way, while preserving playlists.
// We need this rescan because ICU also changed, and now generates different
// collation keys
db.execSQL("DELETE from albums");
db.execSQL("DELETE from artists");
db.execSQL("UPDATE audio_meta SET date_modified=0;");
} else if (fromVersion < 93) {
// the album disambiguator hash changed, so rescan songs and force
// albums to be updated. Artists are unaffected.
db.execSQL("DELETE from albums");
db.execSQL("UPDATE audio_meta SET date_modified=0;");
}
sanityCheck(db, fromVersion);
}
/**
* Perform a simple sanity check on the database. Currently this tests
* whether all the _data entries in audio_meta are unique
*/
private static void sanityCheck(SQLiteDatabase db, int fromVersion) {
Cursor c1 = db.query("audio_meta", new String[] {"count(*)"},
null, null, null, null, null);
Cursor c2 = db.query("audio_meta", new String[] {"count(distinct _data)"},
null, null, null, null, null);
c1.moveToFirst();
c2.moveToFirst();
int num1 = c1.getInt(0);
int num2 = c2.getInt(0);
c1.close();
c2.close();
if (num1 != num2) {
Log.e(TAG, "audio_meta._data column is not unique while upgrading" +
" from schema " +fromVersion + " : " + num1 +"/" + num2);
// Delete all audio_meta rows so they will be rebuilt by the media scanner
db.execSQL("DELETE FROM audio_meta;");
}
}
private static void recreateAudioView(SQLiteDatabase db) {
// Provides a unified audio/artist/album info view.
// Note that views are read-only, so we define a trigger to allow deletes.
db.execSQL("DROP VIEW IF EXISTS audio");
db.execSQL("DROP TRIGGER IF EXISTS audio_delete");
db.execSQL("CREATE VIEW IF NOT EXISTS audio as SELECT * FROM audio_meta " +
"LEFT OUTER JOIN artists ON audio_meta.artist_id=artists.artist_id " +
"LEFT OUTER JOIN albums ON audio_meta.album_id=albums.album_id;");
db.execSQL("CREATE TRIGGER IF NOT EXISTS audio_delete INSTEAD OF DELETE ON audio " +
"BEGIN " +
"DELETE from audio_meta where _id=old._id;" +
"DELETE from audio_playlists_map where audio_id=old._id;" +
"DELETE from audio_genres_map where audio_id=old._id;" +
"END");
}
/**
* Iterate through the rows of a table in a database, ensuring that the bucket_id and
* bucket_display_name columns are correct.
* @param db
* @param tableName
*/
private static void updateBucketNames(SQLiteDatabase db, String tableName) {
// Rebuild the bucket_display_name column using the natural case rather than lower case.
db.beginTransaction();
try {
String[] columns = {BaseColumns._ID, MediaColumns.DATA};
Cursor cursor = db.query(tableName, columns, null, null, null, null, null);
try {
final int idColumnIndex = cursor.getColumnIndex(BaseColumns._ID);
final int dataColumnIndex = cursor.getColumnIndex(MediaColumns.DATA);
while (cursor.moveToNext()) {
String data = cursor.getString(dataColumnIndex);
ContentValues values = new ContentValues();
computeBucketValues(data, values);
int rowId = cursor.getInt(idColumnIndex);
db.update(tableName, values, "_id=" + rowId, null);
}
} finally {
cursor.close();
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
/**
* Iterate through the rows of a table in a database, ensuring that the
* display name column has a value.
* @param db
* @param tableName
*/
private static void updateDisplayName(SQLiteDatabase db, String tableName) {
// Fill in default values for null displayName values
db.beginTransaction();
try {
String[] columns = {BaseColumns._ID, MediaColumns.DATA, MediaColumns.DISPLAY_NAME};
Cursor cursor = db.query(tableName, columns, null, null, null, null, null);
try {
final int idColumnIndex = cursor.getColumnIndex(BaseColumns._ID);
final int dataColumnIndex = cursor.getColumnIndex(MediaColumns.DATA);
final int displayNameIndex = cursor.getColumnIndex(MediaColumns.DISPLAY_NAME);
ContentValues values = new ContentValues();
while (cursor.moveToNext()) {
String displayName = cursor.getString(displayNameIndex);
if (displayName == null) {
String data = cursor.getString(dataColumnIndex);
values.clear();
computeDisplayName(data, values);
int rowId = cursor.getInt(idColumnIndex);
db.update(tableName, values, "_id=" + rowId, null);
}
}
} finally {
cursor.close();
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
/**
* @param data The input path
* @param values the content values, where the bucked id name and bucket display name are updated.
*
*/
private static void computeBucketValues(String data, ContentValues values) {
File parentFile = new File(data).getParentFile();
if (parentFile == null) {
parentFile = new File("/");
}
// Lowercase the path for hashing. This avoids duplicate buckets if the
// filepath case is changed externally.
// Keep the original case for display.
String path = parentFile.toString().toLowerCase();
String name = parentFile.getName();
// Note: the BUCKET_ID and BUCKET_DISPLAY_NAME attributes are spelled the
// same for both images and video. However, for backwards-compatibility reasons
// there is no common base class. We use the ImageColumns version here
values.put(ImageColumns.BUCKET_ID, path.hashCode());
values.put(ImageColumns.BUCKET_DISPLAY_NAME, name);
}
/**
* @param data The input path
* @param values the content values, where the display name is updated.
*
*/
private static void computeDisplayName(String data, ContentValues values) {
String s = (data == null ? "" : data.toString());
int idx = s.lastIndexOf('/');
if (idx >= 0) {
s = s.substring(idx + 1);
}
values.put("_display_name", s);
}
/**
* Copy taken time from date_modified if we lost the original value (e.g. after factory reset)
* This works for both video and image tables.
*
* @param values the content values, where taken time is updated.
*/
private static void computeTakenTime(ContentValues values) {
if (! values.containsKey(Images.Media.DATE_TAKEN)) {
// This only happens when MediaScanner finds an image file that doesn't have any useful
// reference to get this value. (e.g. GPSTimeStamp)
Long lastModified = values.getAsLong(MediaColumns.DATE_MODIFIED);
if (lastModified != null) {
values.put(Images.Media.DATE_TAKEN, lastModified * 1000);
}
}
}
/**
* This method blocks until thumbnail is ready.
*
* @param thumbUri
* @return
*/
private boolean waitForThumbnailReady(Uri origUri) {
Cursor c = this.query(origUri, new String[] { ImageColumns._ID, ImageColumns.DATA,
ImageColumns.MINI_THUMB_MAGIC}, null, null, null);
if (c == null) return false;
boolean result = false;
if (c.moveToFirst()) {
long id = c.getLong(0);
String path = c.getString(1);
long magic = c.getLong(2);
MediaThumbRequest req = requestMediaThumbnail(path, origUri,
MediaThumbRequest.PRIORITY_HIGH, magic);
if (req == null) {
return false;
}
synchronized (req) {
try {
while (req.mState == MediaThumbRequest.State.WAIT) {
req.wait();
}
} catch (InterruptedException e) {
Log.w(TAG, e);
}
if (req.mState == MediaThumbRequest.State.DONE) {
result = true;
}
}
}
c.close();
return result;
}
private boolean matchThumbRequest(MediaThumbRequest req, int pid, long id, long gid,
boolean isVideo) {
boolean cancelAllOrigId = (id == -1);
boolean cancelAllGroupId = (gid == -1);
return (req.mCallingPid == pid) &&
(cancelAllGroupId || req.mGroupId == gid) &&
(cancelAllOrigId || req.mOrigId == id) &&
(req.mIsVideo == isVideo);
}
private boolean queryThumbnail(SQLiteQueryBuilder qb, Uri uri, String table,
String column, boolean hasThumbnailId) {
qb.setTables(table);
if (hasThumbnailId) {
// For uri dispatched to this method, the 4th path segment is always
// the thumbnail id.
qb.appendWhere("_id = " + uri.getPathSegments().get(3));
// client already knows which thumbnail it wants, bypass it.
return true;
}
String origId = uri.getQueryParameter("orig_id");
// We can't query ready_flag unless we know original id
if (origId == null) {
// this could be thumbnail query for other purpose, bypass it.
return true;
}
boolean needBlocking = "1".equals(uri.getQueryParameter("blocking"));
boolean cancelRequest = "1".equals(uri.getQueryParameter("cancel"));
Uri origUri = uri.buildUpon().encodedPath(
uri.getPath().replaceFirst("thumbnails", "media"))
.appendPath(origId).build();
if (needBlocking && !waitForThumbnailReady(origUri)) {
Log.w(TAG, "original media doesn't exist or it's canceled.");
return false;
} else if (cancelRequest) {
String groupId = uri.getQueryParameter("group_id");
boolean isVideo = "video".equals(uri.getPathSegments().get(1));
int pid = Binder.getCallingPid();
long id = -1;
long gid = -1;
try {
id = Long.parseLong(origId);
gid = Long.parseLong(groupId);
} catch (NumberFormatException ex) {
// invalid cancel request
return false;
}
synchronized (mMediaThumbQueue) {
if (mCurrentThumbRequest != null &&
matchThumbRequest(mCurrentThumbRequest, pid, id, gid, isVideo)) {
synchronized (mCurrentThumbRequest) {
mCurrentThumbRequest.mState = MediaThumbRequest.State.CANCEL;
mCurrentThumbRequest.notifyAll();
}
}
for (MediaThumbRequest mtq : mMediaThumbQueue) {
if (matchThumbRequest(mtq, pid, id, gid, isVideo)) {
synchronized (mtq) {
mtq.mState = MediaThumbRequest.State.CANCEL;
mtq.notifyAll();
}
mMediaThumbQueue.remove(mtq);
}
}
}
}
if (origId != null) {
qb.appendWhere(column + " = " + origId);
}
return true;
}
@SuppressWarnings("fallthrough")
@Override
public Cursor query(Uri uri, String[] projectionIn, String selection,
String[] selectionArgs, String sort) {
int table = URI_MATCHER.match(uri);
// Log.v(TAG, "query: uri="+uri+", selection="+selection);
// handle MEDIA_SCANNER before calling getDatabaseForUri()
if (table == MEDIA_SCANNER) {
if (mMediaScannerVolume == null) {
return null;
} else {
// create a cursor to return volume currently being scanned by the media scanner
MatrixCursor c = new MatrixCursor(new String[] {MediaStore.MEDIA_SCANNER_VOLUME});
c.addRow(new String[] {mMediaScannerVolume});
return c;
}
}
// Used temporarily (until we have unique media IDs) to get an identifier
// for the current sd card, so that the music app doesn't have to use the
// non-public getFatVolumeId method
if (table == FS_ID) {
MatrixCursor c = new MatrixCursor(new String[] {"fsid"});
c.addRow(new Integer[] {mVolumeId});
return c;
}
String groupBy = null;
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
return null;
}
SQLiteDatabase db = database.getReadableDatabase();
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
String limit = uri.getQueryParameter("limit");
String filter = uri.getQueryParameter("filter");
String [] keywords = null;
if (filter != null) {
filter = Uri.decode(filter).trim();
if (!TextUtils.isEmpty(filter)) {
String [] searchWords = filter.split(" ");
keywords = new String[searchWords.length];
Collator col = Collator.getInstance();
col.setStrength(Collator.PRIMARY);
for (int i = 0; i < searchWords.length; i++) {
String key = MediaStore.Audio.keyFor(searchWords[i]);
key = key.replace("\\", "\\\\");
key = key.replace("%", "\\%");
key = key.replace("_", "\\_");
keywords[i] = key;
}
}
}
boolean hasThumbnailId = false;
switch (table) {
case IMAGES_MEDIA:
qb.setTables("images");
if (uri.getQueryParameter("distinct") != null)
qb.setDistinct(true);
// set the project map so that data dir is prepended to _data.
//qb.setProjectionMap(mImagesProjectionMap, true);
break;
case IMAGES_MEDIA_ID:
qb.setTables("images");
if (uri.getQueryParameter("distinct") != null)
qb.setDistinct(true);
// set the project map so that data dir is prepended to _data.
//qb.setProjectionMap(mImagesProjectionMap, true);
qb.appendWhere("_id = " + uri.getPathSegments().get(3));
break;
case IMAGES_THUMBNAILS_ID:
hasThumbnailId = true;
case IMAGES_THUMBNAILS:
if (!queryThumbnail(qb, uri, "thumbnails", "image_id", hasThumbnailId)) {
return null;
}
break;
case AUDIO_MEDIA:
if (projectionIn != null && projectionIn.length == 1 && selectionArgs == null
&& (selection == null || selection.equalsIgnoreCase("is_music=1")
|| selection.equalsIgnoreCase("is_podcast=1") )
&& projectionIn[0].equalsIgnoreCase("count(*)")
&& keywords != null) {
//Log.i("@@@@", "taking fast path for counting songs");
qb.setTables("audio_meta");
} else {
qb.setTables("audio");
for (int i = 0; keywords != null && i < keywords.length; i++) {
if (i > 0) {
qb.appendWhere(" AND ");
}
qb.appendWhere(MediaStore.Audio.Media.ARTIST_KEY +
"||" + MediaStore.Audio.Media.ALBUM_KEY +
"||" + MediaStore.Audio.Media.TITLE_KEY + " LIKE '%" +
keywords[i] + "%' ESCAPE '\\'");
}
}
break;
case AUDIO_MEDIA_ID:
qb.setTables("audio");
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_MEDIA_ID_GENRES:
qb.setTables("audio_genres");
qb.appendWhere("_id IN (SELECT genre_id FROM " +
"audio_genres_map WHERE audio_id = " +
uri.getPathSegments().get(3) + ")");
break;
case AUDIO_MEDIA_ID_GENRES_ID:
qb.setTables("audio_genres");
qb.appendWhere("_id=" + uri.getPathSegments().get(5));
break;
case AUDIO_MEDIA_ID_PLAYLISTS:
qb.setTables("audio_playlists");
qb.appendWhere("_id IN (SELECT playlist_id FROM " +
"audio_playlists_map WHERE audio_id = " +
uri.getPathSegments().get(3) + ")");
break;
case AUDIO_MEDIA_ID_PLAYLISTS_ID:
qb.setTables("audio_playlists");
qb.appendWhere("_id=" + uri.getPathSegments().get(5));
break;
case AUDIO_GENRES:
qb.setTables("audio_genres");
break;
case AUDIO_GENRES_ID:
qb.setTables("audio_genres");
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_GENRES_ID_MEMBERS:
qb.setTables("audio");
qb.appendWhere("_id IN (SELECT audio_id FROM " +
"audio_genres_map WHERE genre_id = " +
uri.getPathSegments().get(3) + ")");
break;
case AUDIO_GENRES_ID_MEMBERS_ID:
qb.setTables("audio");
qb.appendWhere("_id=" + uri.getPathSegments().get(5));
break;
case AUDIO_PLAYLISTS:
qb.setTables("audio_playlists");
break;
case AUDIO_PLAYLISTS_ID:
qb.setTables("audio_playlists");
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_PLAYLISTS_ID_MEMBERS:
if (projectionIn != null) {
for (int i = 0; i < projectionIn.length; i++) {
if (projectionIn[i].equals("_id")) {
projectionIn[i] = "audio_playlists_map._id AS _id";
}
}
}
qb.setTables("audio_playlists_map, audio");
qb.appendWhere("audio._id = audio_id AND playlist_id = "
+ uri.getPathSegments().get(3));
for (int i = 0; keywords != null && i < keywords.length; i++) {
qb.appendWhere(" AND ");
qb.appendWhere(MediaStore.Audio.Media.ARTIST_KEY +
"||" + MediaStore.Audio.Media.ALBUM_KEY +
"||" + MediaStore.Audio.Media.TITLE_KEY +
" LIKE '%" + keywords[i] + "%' ESCAPE '\\'");
}
break;
case AUDIO_PLAYLISTS_ID_MEMBERS_ID:
qb.setTables("audio");
qb.appendWhere("_id=" + uri.getPathSegments().get(5));
break;
case VIDEO_MEDIA:
qb.setTables("video");
if (uri.getQueryParameter("distinct") != null) {
qb.setDistinct(true);
}
break;
case VIDEO_MEDIA_ID:
qb.setTables("video");
if (uri.getQueryParameter("distinct") != null) {
qb.setDistinct(true);
}
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case VIDEO_THUMBNAILS_ID:
hasThumbnailId = true;
case VIDEO_THUMBNAILS:
if (!queryThumbnail(qb, uri, "videothumbnails", "video_id", hasThumbnailId)) {
return null;
}
break;
case AUDIO_ARTISTS:
if (projectionIn != null && projectionIn.length == 1 && selectionArgs == null
&& (selection == null || selection.length() == 0)
&& projectionIn[0].equalsIgnoreCase("count(*)")
&& keywords != null) {
//Log.i("@@@@", "taking fast path for counting artists");
qb.setTables("audio_meta");
projectionIn[0] = "count(distinct artist_id)";
qb.appendWhere("is_music=1");
} else {
qb.setTables("artist_info");
for (int i = 0; keywords != null && i < keywords.length; i++) {
if (i > 0) {
qb.appendWhere(" AND ");
}
qb.appendWhere(MediaStore.Audio.Media.ARTIST_KEY +
" LIKE '%" + keywords[i] + "%' ESCAPE '\\'");
}
}
break;
case AUDIO_ARTISTS_ID:
qb.setTables("artist_info");
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_ARTISTS_ID_ALBUMS:
String aid = uri.getPathSegments().get(3);
qb.setTables("audio LEFT OUTER JOIN album_art ON" +
" audio.album_id=album_art.album_id");
qb.appendWhere("is_music=1 AND audio.album_id IN (SELECT album_id FROM " +
"artists_albums_map WHERE artist_id = " +
aid + ")");
for (int i = 0; keywords != null && i < keywords.length; i++) {
qb.appendWhere(" AND ");
qb.appendWhere(MediaStore.Audio.Media.ARTIST_KEY +
"||" + MediaStore.Audio.Media.ALBUM_KEY +
" LIKE '%" + keywords[i] + "%' ESCAPE '\\'");
}
groupBy = "audio.album_id";
sArtistAlbumsMap.put(MediaStore.Audio.Albums.NUMBER_OF_SONGS_FOR_ARTIST,
"count(CASE WHEN artist_id==" + aid + " THEN 'foo' ELSE NULL END) AS " +
MediaStore.Audio.Albums.NUMBER_OF_SONGS_FOR_ARTIST);
qb.setProjectionMap(sArtistAlbumsMap);
break;
case AUDIO_ALBUMS:
if (projectionIn != null && projectionIn.length == 1 && selectionArgs == null
&& (selection == null || selection.length() == 0)
&& projectionIn[0].equalsIgnoreCase("count(*)")
&& keywords != null) {
//Log.i("@@@@", "taking fast path for counting albums");
qb.setTables("audio_meta");
projectionIn[0] = "count(distinct album_id)";
qb.appendWhere("is_music=1");
} else {
qb.setTables("album_info");
for (int i = 0; keywords != null && i < keywords.length; i++) {
if (i > 0) {
qb.appendWhere(" AND ");
}
qb.appendWhere(MediaStore.Audio.Media.ARTIST_KEY +
"||" + MediaStore.Audio.Media.ALBUM_KEY +
" LIKE '%" + keywords[i] + "%' ESCAPE '\\'");
}
}
break;
case AUDIO_ALBUMS_ID:
qb.setTables("album_info");
qb.appendWhere("_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_ALBUMART_ID:
qb.setTables("album_art");
qb.appendWhere("album_id=" + uri.getPathSegments().get(3));
break;
case AUDIO_SEARCH_LEGACY:
Log.w(TAG, "Legacy media search Uri used. Please update your code.");
// fall through
case AUDIO_SEARCH_FANCY:
case AUDIO_SEARCH_BASIC:
return doAudioSearch(db, qb, uri, projectionIn, selection, selectionArgs, sort,
table, limit);
default:
throw new IllegalStateException("Unknown URL: " + uri.toString());
}
// Log.v(TAG, "query = "+ qb.buildQuery(projectionIn, selection, selectionArgs, groupBy, null, sort, limit));
Cursor c = qb.query(db, projectionIn, selection,
selectionArgs, groupBy, null, sort, limit);
if (c != null) {
c.setNotificationUri(getContext().getContentResolver(), uri);
}
return c;
}
private Cursor doAudioSearch(SQLiteDatabase db, SQLiteQueryBuilder qb,
Uri uri, String[] projectionIn, String selection,
String[] selectionArgs, String sort, int mode,
String limit) {
String mSearchString = uri.getPath().endsWith("/") ? "" : uri.getLastPathSegment();
mSearchString = mSearchString.replaceAll(" ", " ").trim().toLowerCase();
String [] searchWords = mSearchString.length() > 0 ?
mSearchString.split(" ") : new String[0];
String [] wildcardWords = new String[searchWords.length];
Collator col = Collator.getInstance();
col.setStrength(Collator.PRIMARY);
int len = searchWords.length;
for (int i = 0; i < len; i++) {
// Because we match on individual words here, we need to remove words
// like 'a' and 'the' that aren't part of the keys.
String key = MediaStore.Audio.keyFor(searchWords[i]);
key = key.replace("\\", "\\\\");
key = key.replace("%", "\\%");
key = key.replace("_", "\\_");
wildcardWords[i] =
(searchWords[i].equals("a") || searchWords[i].equals("an") ||
searchWords[i].equals("the")) ? "%" : "%" + key + "%";
}
String where = "";
for (int i = 0; i < searchWords.length; i++) {
if (i == 0) {
where = "match LIKE ? ESCAPE '\\'";
} else {
where += " AND match LIKE ? ESCAPE '\\'";
}
}
qb.setTables("search");
String [] cols;
if (mode == AUDIO_SEARCH_FANCY) {
cols = mSearchColsFancy;
} else if (mode == AUDIO_SEARCH_BASIC) {
cols = mSearchColsBasic;
} else {
cols = mSearchColsLegacy;
}
return qb.query(db, cols, where, wildcardWords, null, null, null, limit);
}
@Override
public String getType(Uri url)
{
switch (URI_MATCHER.match(url)) {
case IMAGES_MEDIA_ID:
case AUDIO_MEDIA_ID:
case AUDIO_GENRES_ID_MEMBERS_ID:
case AUDIO_PLAYLISTS_ID_MEMBERS_ID:
case VIDEO_MEDIA_ID:
Cursor c = null;
try {
c = query(url, MIME_TYPE_PROJECTION, null, null, null);
if (c != null && c.getCount() == 1) {
c.moveToFirst();
String mimeType = c.getString(1);
c.deactivate();
return mimeType;
}
} finally {
if (c != null) {
c.close();
}
}
break;
case IMAGES_MEDIA:
case IMAGES_THUMBNAILS:
return Images.Media.CONTENT_TYPE;
case IMAGES_THUMBNAILS_ID:
return "image/jpeg";
case AUDIO_MEDIA:
case AUDIO_GENRES_ID_MEMBERS:
case AUDIO_PLAYLISTS_ID_MEMBERS:
return Audio.Media.CONTENT_TYPE;
case AUDIO_GENRES:
case AUDIO_MEDIA_ID_GENRES:
return Audio.Genres.CONTENT_TYPE;
case AUDIO_GENRES_ID:
case AUDIO_MEDIA_ID_GENRES_ID:
return Audio.Genres.ENTRY_CONTENT_TYPE;
case AUDIO_PLAYLISTS:
case AUDIO_MEDIA_ID_PLAYLISTS:
return Audio.Playlists.CONTENT_TYPE;
case AUDIO_PLAYLISTS_ID:
case AUDIO_MEDIA_ID_PLAYLISTS_ID:
return Audio.Playlists.ENTRY_CONTENT_TYPE;
case VIDEO_MEDIA:
return Video.Media.CONTENT_TYPE;
}
throw new IllegalStateException("Unknown URL");
}
/**
* Ensures there is a file in the _data column of values, if one isn't
* present a new file is created.
*
* @param initialValues the values passed to insert by the caller
* @return the new values
*/
private ContentValues ensureFile(boolean internal, ContentValues initialValues,
String preferredExtension, String directoryName) {
ContentValues values;
String file = initialValues.getAsString("_data");
if (TextUtils.isEmpty(file)) {
file = generateFileName(internal, preferredExtension, directoryName);
values = new ContentValues(initialValues);
values.put("_data", file);
} else {
values = initialValues;
}
if (!ensureFileExists(file)) {
throw new IllegalStateException("Unable to create new file: " + file);
}
return values;
}
@Override
public int bulkInsert(Uri uri, ContentValues values[]) {
int match = URI_MATCHER.match(uri);
if (match == VOLUMES) {
return super.bulkInsert(uri, values);
}
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
throw new UnsupportedOperationException(
"Unknown URI: " + uri);
}
SQLiteDatabase db = database.getWritableDatabase();
if (match == AUDIO_PLAYLISTS_ID || match == AUDIO_PLAYLISTS_ID_MEMBERS) {
return playlistBulkInsert(db, uri, values);
}
db.beginTransaction();
int numInserted = 0;
try {
int len = values.length;
for (int i = 0; i < len; i++) {
insertInternal(uri, values[i]);
}
numInserted = len;
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
getContext().getContentResolver().notifyChange(uri, null);
return numInserted;
}
@Override
public Uri insert(Uri uri, ContentValues initialValues)
{
Uri newUri = insertInternal(uri, initialValues);
if (newUri != null) {
getContext().getContentResolver().notifyChange(uri, null);
}
return newUri;
}
private int playlistBulkInsert(SQLiteDatabase db, Uri uri, ContentValues values[]) {
DatabaseUtils.InsertHelper helper =
new DatabaseUtils.InsertHelper(db, "audio_playlists_map");
int audioidcolidx = helper.getColumnIndex(MediaStore.Audio.Playlists.Members.AUDIO_ID);
int playlistididx = helper.getColumnIndex(Audio.Playlists.Members.PLAYLIST_ID);
int playorderidx = helper.getColumnIndex(MediaStore.Audio.Playlists.Members.PLAY_ORDER);
long playlistId = Long.parseLong(uri.getPathSegments().get(3));
db.beginTransaction();
int numInserted = 0;
try {
int len = values.length;
for (int i = 0; i < len; i++) {
helper.prepareForInsert();
// getting the raw Object and converting it long ourselves saves
// an allocation (the alternative is ContentValues.getAsLong, which
// returns a Long object)
long audioid = ((Number) values[i].get(
MediaStore.Audio.Playlists.Members.AUDIO_ID)).longValue();
helper.bind(audioidcolidx, audioid);
helper.bind(playlistididx, playlistId);
// convert to int ourselves to save an allocation.
int playorder = ((Number) values[i].get(
MediaStore.Audio.Playlists.Members.PLAY_ORDER)).intValue();
helper.bind(playorderidx, playorder);
helper.execute();
}
numInserted = len;
db.setTransactionSuccessful();
} finally {
db.endTransaction();
helper.close();
}
getContext().getContentResolver().notifyChange(uri, null);
return numInserted;
}
private Uri insertInternal(Uri uri, ContentValues initialValues) {
long rowId;
int match = URI_MATCHER.match(uri);
// Log.v(TAG, "insertInternal: "+uri+", initValues="+initialValues);
// handle MEDIA_SCANNER before calling getDatabaseForUri()
if (match == MEDIA_SCANNER) {
mMediaScannerVolume = initialValues.getAsString(MediaStore.MEDIA_SCANNER_VOLUME);
return MediaStore.getMediaScannerUri();
}
Uri newUri = null;
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null && match != VOLUMES) {
throw new UnsupportedOperationException(
"Unknown URI: " + uri);
}
SQLiteDatabase db = (match == VOLUMES ? null : database.getWritableDatabase());
if (initialValues == null) {
initialValues = new ContentValues();
}
switch (match) {
case IMAGES_MEDIA: {
ContentValues values = ensureFile(database.mInternal, initialValues, ".jpg", "DCIM/Camera");
values.put(MediaStore.MediaColumns.DATE_ADDED, System.currentTimeMillis() / 1000);
String data = values.getAsString(MediaColumns.DATA);
if (! values.containsKey(MediaColumns.DISPLAY_NAME)) {
computeDisplayName(data, values);
}
computeBucketValues(data, values);
computeTakenTime(values);
rowId = db.insert("images", "name", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(
Images.Media.getContentUri(uri.getPathSegments().get(0)), rowId);
requestMediaThumbnail(data, newUri, MediaThumbRequest.PRIORITY_NORMAL, 0);
}
break;
}
// This will be triggered by requestMediaThumbnail (see getThumbnailUri)
case IMAGES_THUMBNAILS: {
ContentValues values = ensureFile(database.mInternal, initialValues, ".jpg",
"DCIM/.thumbnails");
rowId = db.insert("thumbnails", "name", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Images.Thumbnails.
getContentUri(uri.getPathSegments().get(0)), rowId);
}
break;
}
// This is currently only used by MICRO_KIND video thumbnail (see getThumbnailUri)
case VIDEO_THUMBNAILS: {
ContentValues values = ensureFile(database.mInternal, initialValues, ".jpg",
"DCIM/.thumbnails");
rowId = db.insert("videothumbnails", "name", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Video.Thumbnails.
getContentUri(uri.getPathSegments().get(0)), rowId);
}
break;
}
case AUDIO_MEDIA: {
// SQLite Views are read-only, so we need to deconstruct this
// insert and do inserts into the underlying tables.
// If doing this here turns out to be a performance bottleneck,
// consider moving this to native code and using triggers on
// the view.
ContentValues values = new ContentValues(initialValues);
// TODO Remove this and actually store the album_artist in the
// database. For now this is here so the media scanner can start
// sending us the album_artist, even though it's not in the db yet.
String albumartist = values.getAsString(MediaStore.Audio.Media.ALBUM_ARTIST);
values.remove(MediaStore.Audio.Media.ALBUM_ARTIST);
String compilation = values.getAsString(MediaStore.Audio.Media.COMPILATION);
values.remove(MediaStore.Audio.Media.COMPILATION);
// Insert the artist into the artist table and remove it from
// the input values
Object so = values.get("artist");
String s = (so == null ? "" : so.toString());
values.remove("artist");
long artistRowId;
HashMap<String, Long> artistCache = database.mArtistCache;
String path = values.getAsString("_data");
synchronized(artistCache) {
Long temp = artistCache.get(s);
if (temp == null) {
artistRowId = getKeyIdForName(db, "artists", "artist_key", "artist",
s, s, path, 0, null, artistCache, uri);
} else {
artistRowId = temp.longValue();
}
}
String artist = s;
// Do the same for the album field
so = values.get("album");
s = (so == null ? "" : so.toString());
values.remove("album");
long albumRowId;
HashMap<String, Long> albumCache = database.mAlbumCache;
synchronized(albumCache) {
int albumhash = 0;
if (albumartist != null) {
albumhash = albumartist.hashCode();
} else if (compilation != null && compilation.equals("1")) {
// nothing to do, hash already set
} else {
albumhash = path.substring(0, path.lastIndexOf('/')).hashCode();
}
String cacheName = s + albumhash;
Long temp = albumCache.get(cacheName);
if (temp == null) {
albumRowId = getKeyIdForName(db, "albums", "album_key", "album",
s, cacheName, path, albumhash, artist, albumCache, uri);
} else {
albumRowId = temp;
}
}
values.put("artist_id", Integer.toString((int)artistRowId));
values.put("album_id", Integer.toString((int)albumRowId));
so = values.getAsString("title");
s = (so == null ? "" : so.toString());
values.put("title_key", MediaStore.Audio.keyFor(s));
// do a final trim of the title, in case it started with the special
// "sort first" character (ascii \001)
values.remove("title");
values.put("title", s.trim());
computeDisplayName(values.getAsString("_data"), values);
values.put(MediaStore.MediaColumns.DATE_ADDED, System.currentTimeMillis() / 1000);
rowId = db.insert("audio_meta", "duration", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Audio.Media.getContentUri(uri.getPathSegments().get(0)), rowId);
}
break;
}
case AUDIO_MEDIA_ID_GENRES: {
Long audioId = Long.parseLong(uri.getPathSegments().get(2));
ContentValues values = new ContentValues(initialValues);
values.put(Audio.Genres.Members.AUDIO_ID, audioId);
rowId = db.insert("audio_genres_map", "genre_id", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(uri, rowId);
}
break;
}
case AUDIO_MEDIA_ID_PLAYLISTS: {
Long audioId = Long.parseLong(uri.getPathSegments().get(2));
ContentValues values = new ContentValues(initialValues);
values.put(Audio.Playlists.Members.AUDIO_ID, audioId);
rowId = db.insert("audio_playlists_map", "playlist_id",
values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(uri, rowId);
}
break;
}
case AUDIO_GENRES: {
rowId = db.insert("audio_genres", "audio_id", initialValues);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Audio.Genres.getContentUri(uri.getPathSegments().get(0)), rowId);
}
break;
}
case AUDIO_GENRES_ID_MEMBERS: {
Long genreId = Long.parseLong(uri.getPathSegments().get(3));
ContentValues values = new ContentValues(initialValues);
values.put(Audio.Genres.Members.GENRE_ID, genreId);
rowId = db.insert("audio_genres_map", "genre_id", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(uri, rowId);
}
break;
}
case AUDIO_PLAYLISTS: {
ContentValues values = new ContentValues(initialValues);
values.put(MediaStore.Audio.Playlists.DATE_ADDED, System.currentTimeMillis() / 1000);
rowId = db.insert("audio_playlists", "name", initialValues);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Audio.Playlists.getContentUri(uri.getPathSegments().get(0)), rowId);
}
break;
}
case AUDIO_PLAYLISTS_ID:
case AUDIO_PLAYLISTS_ID_MEMBERS: {
Long playlistId = Long.parseLong(uri.getPathSegments().get(3));
ContentValues values = new ContentValues(initialValues);
values.put(Audio.Playlists.Members.PLAYLIST_ID, playlistId);
rowId = db.insert("audio_playlists_map", "playlist_id", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(uri, rowId);
}
break;
}
case VIDEO_MEDIA: {
ContentValues values = ensureFile(database.mInternal, initialValues, ".3gp", "video");
String data = values.getAsString("_data");
computeDisplayName(data, values);
computeBucketValues(data, values);
values.put(MediaStore.MediaColumns.DATE_ADDED, System.currentTimeMillis() / 1000);
computeTakenTime(values);
rowId = db.insert("video", "artist", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(Video.Media.getContentUri(
uri.getPathSegments().get(0)), rowId);
requestMediaThumbnail(data, newUri, MediaThumbRequest.PRIORITY_NORMAL, 0);
}
break;
}
case AUDIO_ALBUMART:
if (database.mInternal) {
throw new UnsupportedOperationException("no internal album art allowed");
}
ContentValues values = null;
try {
values = ensureFile(false, initialValues, "", ALBUM_THUMB_FOLDER);
} catch (IllegalStateException ex) {
// probably no more room to store albumthumbs
values = initialValues;
}
rowId = db.insert("album_art", "_data", values);
if (rowId > 0) {
newUri = ContentUris.withAppendedId(uri, rowId);
}
break;
case VOLUMES:
return attachVolume(initialValues.getAsString("name"));
default:
throw new UnsupportedOperationException("Invalid URI " + uri);
}
return newUri;
}
@Override
public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
throws OperationApplicationException {
// The operations array provides no overall information about the URI(s) being operated
// on, so begin a transaction for ALL of the databases.
DatabaseHelper ihelper = getDatabaseForUri(MediaStore.Audio.Media.INTERNAL_CONTENT_URI);
DatabaseHelper ehelper = getDatabaseForUri(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI);
SQLiteDatabase idb = ihelper.getWritableDatabase();
idb.beginTransaction();
SQLiteDatabase edb = null;
if (ehelper != null) {
edb = ehelper.getWritableDatabase();
edb.beginTransaction();
}
try {
ContentProviderResult[] result = super.applyBatch(operations);
idb.setTransactionSuccessful();
if (edb != null) {
edb.setTransactionSuccessful();
}
// Rather than sending targeted change notifications for every Uri
// affected by the batch operation, just invalidate the entire internal
// and external name space.
ContentResolver res = getContext().getContentResolver();
res.notifyChange(Uri.parse("content://media/"), null);
return result;
} finally {
idb.endTransaction();
if (edb != null) {
edb.endTransaction();
}
}
}
private MediaThumbRequest requestMediaThumbnail(String path, Uri uri, int priority, long magic) {
synchronized (mMediaThumbQueue) {
MediaThumbRequest req = null;
try {
req = new MediaThumbRequest(
getContext().getContentResolver(), path, uri, priority, magic);
mMediaThumbQueue.add(req);
// Trigger the handler.
Message msg = mThumbHandler.obtainMessage(IMAGE_THUMB);
msg.sendToTarget();
} catch (Throwable t) {
Log.w(TAG, t);
}
return req;
}
}
private String generateFileName(boolean internal, String preferredExtension, String directoryName)
{
// create a random file
String name = String.valueOf(System.currentTimeMillis());
if (internal) {
throw new UnsupportedOperationException("Writing to internal storage is not supported.");
// return Environment.getDataDirectory()
// + "/" + directoryName + "/" + name + preferredExtension;
} else {
return Environment.getExternalStorageDirectory()
+ "/" + directoryName + "/" + name + preferredExtension;
}
}
private boolean ensureFileExists(String path) {
File file = new File(path);
if (file.exists()) {
return true;
} else {
// we will not attempt to create the first directory in the path
// (for example, do not create /sdcard if the SD card is not mounted)
int secondSlash = path.indexOf('/', 1);
if (secondSlash < 1) return false;
String directoryPath = path.substring(0, secondSlash);
File directory = new File(directoryPath);
if (!directory.exists())
return false;
file.getParentFile().mkdirs();
try {
return file.createNewFile();
} catch(IOException ioe) {
Log.e(TAG, "File creation failed", ioe);
}
return false;
}
}
private static final class GetTableAndWhereOutParameter {
public String table;
public String where;
}
static final GetTableAndWhereOutParameter sGetTableAndWhereParam =
new GetTableAndWhereOutParameter();
private void getTableAndWhere(Uri uri, int match, String userWhere,
GetTableAndWhereOutParameter out) {
String where = null;
switch (match) {
case IMAGES_MEDIA:
out.table = "images";
break;
case IMAGES_MEDIA_ID:
out.table = "images";
where = "_id = " + uri.getPathSegments().get(3);
break;
case IMAGES_THUMBNAILS_ID:
where = "_id=" + uri.getPathSegments().get(3);
case IMAGES_THUMBNAILS:
out.table = "thumbnails";
break;
case AUDIO_MEDIA:
out.table = "audio";
break;
case AUDIO_MEDIA_ID:
out.table = "audio";
where = "_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_MEDIA_ID_GENRES:
out.table = "audio_genres";
where = "audio_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_MEDIA_ID_GENRES_ID:
out.table = "audio_genres";
where = "audio_id=" + uri.getPathSegments().get(3) +
" AND genre_id=" + uri.getPathSegments().get(5);
break;
case AUDIO_MEDIA_ID_PLAYLISTS:
out.table = "audio_playlists";
where = "audio_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_MEDIA_ID_PLAYLISTS_ID:
out.table = "audio_playlists";
where = "audio_id=" + uri.getPathSegments().get(3) +
" AND playlists_id=" + uri.getPathSegments().get(5);
break;
case AUDIO_GENRES:
out.table = "audio_genres";
break;
case AUDIO_GENRES_ID:
out.table = "audio_genres";
where = "_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_GENRES_ID_MEMBERS:
out.table = "audio_genres";
where = "genre_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_GENRES_ID_MEMBERS_ID:
out.table = "audio_genres";
where = "genre_id=" + uri.getPathSegments().get(3) +
" AND audio_id =" + uri.getPathSegments().get(5);
break;
case AUDIO_PLAYLISTS:
out.table = "audio_playlists";
break;
case AUDIO_PLAYLISTS_ID:
out.table = "audio_playlists";
where = "_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_PLAYLISTS_ID_MEMBERS:
out.table = "audio_playlists_map";
where = "playlist_id=" + uri.getPathSegments().get(3);
break;
case AUDIO_PLAYLISTS_ID_MEMBERS_ID:
out.table = "audio_playlists_map";
where = "playlist_id=" + uri.getPathSegments().get(3) +
" AND _id=" + uri.getPathSegments().get(5);
break;
case AUDIO_ALBUMART_ID:
out.table = "album_art";
where = "album_id=" + uri.getPathSegments().get(3);
break;
case VIDEO_MEDIA:
out.table = "video";
break;
case VIDEO_MEDIA_ID:
out.table = "video";
where = "_id=" + uri.getPathSegments().get(3);
break;
case VIDEO_THUMBNAILS_ID:
where = "_id=" + uri.getPathSegments().get(3);
case VIDEO_THUMBNAILS:
out.table = "videothumbnails";
break;
default:
throw new UnsupportedOperationException(
"Unknown or unsupported URL: " + uri.toString());
}
// Add in the user requested WHERE clause, if needed
if (!TextUtils.isEmpty(userWhere)) {
if (!TextUtils.isEmpty(where)) {
out.where = where + " AND (" + userWhere + ")";
} else {
out.where = userWhere;
}
} else {
out.where = where;
}
}
@Override
public int delete(Uri uri, String userWhere, String[] whereArgs) {
int count;
int match = URI_MATCHER.match(uri);
// handle MEDIA_SCANNER before calling getDatabaseForUri()
if (match == MEDIA_SCANNER) {
if (mMediaScannerVolume == null) {
return 0;
}
mMediaScannerVolume = null;
return 1;
}
if (match != VOLUMES_ID) {
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
throw new UnsupportedOperationException(
"Unknown URI: " + uri);
}
SQLiteDatabase db = database.getWritableDatabase();
synchronized (sGetTableAndWhereParam) {
getTableAndWhere(uri, match, userWhere, sGetTableAndWhereParam);
switch (match) {
case AUDIO_MEDIA:
case AUDIO_MEDIA_ID:
count = db.delete("audio_meta",
sGetTableAndWhereParam.where, whereArgs);
break;
default:
count = db.delete(sGetTableAndWhereParam.table,
sGetTableAndWhereParam.where, whereArgs);
break;
}
getContext().getContentResolver().notifyChange(uri, null);
}
} else {
detachVolume(uri);
count = 1;
}
return count;
}
@Override
public int update(Uri uri, ContentValues initialValues, String userWhere,
String[] whereArgs) {
int count;
// Log.v(TAG, "update for uri="+uri+", initValues="+initialValues);
int match = URI_MATCHER.match(uri);
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
throw new UnsupportedOperationException(
"Unknown URI: " + uri);
}
SQLiteDatabase db = database.getWritableDatabase();
synchronized (sGetTableAndWhereParam) {
getTableAndWhere(uri, match, userWhere, sGetTableAndWhereParam);
switch (match) {
case AUDIO_MEDIA:
case AUDIO_MEDIA_ID:
{
ContentValues values = new ContentValues(initialValues);
// TODO Remove this and actually store the album_artist in the
// database. For now this is here so the media scanner can start
// sending us the album_artist, even though it's not in the db yet.
String albumartist = values.getAsString(MediaStore.Audio.Media.ALBUM_ARTIST);
values.remove(MediaStore.Audio.Media.ALBUM_ARTIST);
String compilation = values.getAsString(MediaStore.Audio.Media.COMPILATION);
values.remove(MediaStore.Audio.Media.COMPILATION);
// Insert the artist into the artist table and remove it from
// the input values
String artist = values.getAsString("artist");
values.remove("artist");
if (artist != null) {
long artistRowId;
HashMap<String, Long> artistCache = database.mArtistCache;
synchronized(artistCache) {
Long temp = artistCache.get(artist);
if (temp == null) {
artistRowId = getKeyIdForName(db, "artists", "artist_key", "artist",
artist, artist, null, 0, null, artistCache, uri);
} else {
artistRowId = temp.longValue();
}
}
values.put("artist_id", Integer.toString((int)artistRowId));
}
// Do the same for the album field.
String so = values.getAsString("album");
values.remove("album");
if (so != null) {
String path = values.getAsString("_data");
int albumHash = 0;
if (albumartist != null) {
albumHash = albumartist.hashCode();
} else if (compilation != null && compilation.equals("1")) {
// nothing to do, hash already set
} else if (path == null) {
// If the path is null, we don't have a hash for the file in question.
Log.w(TAG, "Update without specified path.");
} else {
albumHash = path.substring(0, path.lastIndexOf('/')).hashCode();
}
String s = so.toString();
long albumRowId;
HashMap<String, Long> albumCache = database.mAlbumCache;
synchronized(albumCache) {
String cacheName = s + albumHash;
Long temp = albumCache.get(cacheName);
if (temp == null) {
albumRowId = getKeyIdForName(db, "albums", "album_key", "album",
s, cacheName, path, albumHash, artist, albumCache, uri);
} else {
albumRowId = temp.longValue();
}
}
values.put("album_id", Integer.toString((int)albumRowId));
}
// don't allow the title_key field to be updated directly
values.remove("title_key");
// If the title field is modified, update the title_key
so = values.getAsString("title");
if (so != null) {
String s = so.toString();
values.put("title_key", MediaStore.Audio.keyFor(s));
// do a final trim of the title, in case it started with the special
// "sort first" character (ascii \001)
values.remove("title");
values.put("title", s.trim());
}
count = db.update("audio_meta", values, sGetTableAndWhereParam.where,
whereArgs);
}
break;
case IMAGES_MEDIA:
case IMAGES_MEDIA_ID:
case VIDEO_MEDIA:
case VIDEO_MEDIA_ID:
{
ContentValues values = new ContentValues(initialValues);
// Don't allow bucket id or display name to be updated directly.
// The same names are used for both images and table columns, so
// we use the ImageColumns constants here.
values.remove(ImageColumns.BUCKET_ID);
values.remove(ImageColumns.BUCKET_DISPLAY_NAME);
// If the data is being modified update the bucket values
String data = values.getAsString(MediaColumns.DATA);
if (data != null) {
computeBucketValues(data, values);
}
computeTakenTime(values);
count = db.update(sGetTableAndWhereParam.table, values,
sGetTableAndWhereParam.where, whereArgs);
// if this is a request from MediaScanner, DATA should contains file path
// we only process update request from media scanner, otherwise the requests
// could be duplicate.
if (count > 0 && values.getAsString(MediaStore.MediaColumns.DATA) != null) {
Cursor c = db.query(sGetTableAndWhereParam.table,
READY_FLAG_PROJECTION, sGetTableAndWhereParam.where,
whereArgs, null, null, null);
if (c != null) {
try {
while (c.moveToNext()) {
long magic = c.getLong(2);
if (magic == 0) {
requestMediaThumbnail(c.getString(1), uri,
MediaThumbRequest.PRIORITY_NORMAL, 0);
}
}
} finally {
c.close();
}
}
}
}
break;
case AUDIO_PLAYLISTS_ID_MEMBERS_ID:
String moveit = uri.getQueryParameter("move");
if (moveit != null) {
String key = MediaStore.Audio.Playlists.Members.PLAY_ORDER;
if (initialValues.containsKey(key)) {
int newpos = initialValues.getAsInteger(key);
List <String> segments = uri.getPathSegments();
long playlist = Long.valueOf(segments.get(3));
int oldpos = Integer.valueOf(segments.get(5));
return movePlaylistEntry(db, playlist, oldpos, newpos);
}
throw new IllegalArgumentException("Need to specify " + key +
" when using 'move' parameter");
}
// fall through
default:
count = db.update(sGetTableAndWhereParam.table, initialValues,
sGetTableAndWhereParam.where, whereArgs);
break;
}
}
// in a transaction, the code that began the transaction should be taking
// care of notifications once it ends the transaction successfully
if (count > 0 && !db.inTransaction()) {
getContext().getContentResolver().notifyChange(uri, null);
}
return count;
}
private int movePlaylistEntry(SQLiteDatabase db, long playlist, int from, int to) {
if (from == to) {
return 0;
}
db.beginTransaction();
try {
int numlines = 0;
db.execSQL("UPDATE audio_playlists_map SET play_order=-1" +
" WHERE play_order=" + from +
" AND playlist_id=" + playlist);
// We could just run both of the next two statements, but only one of
// of them will actually do anything, so might as well skip the compile
// and execute steps.
if (from < to) {
db.execSQL("UPDATE audio_playlists_map SET play_order=play_order-1" +
" WHERE play_order<=" + to + " AND play_order>" + from +
" AND playlist_id=" + playlist);
numlines = to - from + 1;
} else {
db.execSQL("UPDATE audio_playlists_map SET play_order=play_order+1" +
" WHERE play_order>=" + to + " AND play_order<" + from +
" AND playlist_id=" + playlist);
numlines = from - to + 1;
}
db.execSQL("UPDATE audio_playlists_map SET play_order=" + to +
" WHERE play_order=-1 AND playlist_id=" + playlist);
db.setTransactionSuccessful();
Uri uri = MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI
.buildUpon().appendEncodedPath(String.valueOf(playlist)).build();
getContext().getContentResolver().notifyChange(uri, null);
return numlines;
} finally {
db.endTransaction();
}
}
private static final String[] openFileColumns = new String[] {
MediaStore.MediaColumns.DATA,
};
@Override
public ParcelFileDescriptor openFile(Uri uri, String mode)
throws FileNotFoundException {
ParcelFileDescriptor pfd = null;
if (URI_MATCHER.match(uri) == AUDIO_ALBUMART_FILE_ID) {
// get album art for the specified media file
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
throw new IllegalStateException("Couldn't open database for " + uri);
}
SQLiteDatabase db = database.getReadableDatabase();
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
int songid = Integer.parseInt(uri.getPathSegments().get(3));
qb.setTables("audio_meta");
qb.appendWhere("_id=" + songid);
Cursor c = qb.query(db,
new String [] {
MediaStore.Audio.Media.DATA,
MediaStore.Audio.Media.ALBUM_ID },
null, null, null, null, null);
if (c.moveToFirst()) {
String audiopath = c.getString(0);
int albumid = c.getInt(1);
// Try to get existing album art for this album first, which
// could possibly have been obtained from a different file.
// If that fails, try to get it from this specific file.
Uri newUri = ContentUris.withAppendedId(ALBUMART_URI, albumid);
try {
pfd = openFileHelper(newUri, mode);
} catch (FileNotFoundException ex) {
// That didn't work, now try to get it from the specific file
pfd = getThumb(db, audiopath, albumid, null);
}
}
c.close();
return pfd;
}
try {
pfd = openFileHelper(uri, mode);
} catch (FileNotFoundException ex) {
if (mode.contains("w")) {
// if the file couldn't be created, we shouldn't extract album art
throw ex;
}
if (URI_MATCHER.match(uri) == AUDIO_ALBUMART_ID) {
// Tried to open an album art file which does not exist. Regenerate.
DatabaseHelper database = getDatabaseForUri(uri);
if (database == null) {
throw ex;
}
SQLiteDatabase db = database.getReadableDatabase();
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
int albumid = Integer.parseInt(uri.getPathSegments().get(3));
qb.setTables("audio_meta");
qb.appendWhere("album_id=" + albumid);
Cursor c = qb.query(db,
new String [] {
MediaStore.Audio.Media.DATA },
null, null, null, null, null);
if (c.moveToFirst()) {
String audiopath = c.getString(0);
pfd = getThumb(db, audiopath, albumid, uri);
}
c.close();
}
if (pfd == null) {
throw ex;
}
}
return pfd;
}
private class ThumbData {
SQLiteDatabase db;
String path;
long album_id;
Uri albumart_uri;
}
private void makeThumbAsync(SQLiteDatabase db, String path, long album_id) {
synchronized (mPendingThumbs) {
if (mPendingThumbs.contains(path)) {
// There's already a request to make an album art thumbnail
// for this audio file in the queue.
return;
}
mPendingThumbs.add(path);
}
ThumbData d = new ThumbData();
d.db = db;
d.path = path;
d.album_id = album_id;
d.albumart_uri = ContentUris.withAppendedId(mAlbumArtBaseUri, album_id);
// Instead of processing thumbnail requests in the order they were
// received we instead process them stack-based, i.e. LIFO.
// The idea behind this is that the most recently requested thumbnails
// are most likely the ones still in the user's view, whereas those
// requested earlier may have already scrolled off.
synchronized (mThumbRequestStack) {
mThumbRequestStack.push(d);
}
// Trigger the handler.
Message msg = mThumbHandler.obtainMessage(ALBUM_THUMB);
msg.sendToTarget();
}
// Extract compressed image data from the audio file itself or, if that fails,
// look for a file "AlbumArt.jpg" in the containing directory.
private static byte[] getCompressedAlbumArt(Context context, String path) {
byte[] compressed = null;
try {
File f = new File(path);
ParcelFileDescriptor pfd = ParcelFileDescriptor.open(f,
ParcelFileDescriptor.MODE_READ_ONLY);
MediaScanner scanner = new MediaScanner(context);
compressed = scanner.extractAlbumArt(pfd.getFileDescriptor());
pfd.close();
// If no embedded art exists, look for a suitable image file in the
// same directory as the media file, except if that directory is
// is the root directory of the sd card or the download directory.
// We look for, in order of preference:
// 0 AlbumArt.jpg
// 1 AlbumArt*Large.jpg
// 2 Any other jpg image with 'albumart' anywhere in the name
// 3 Any other jpg image
// 4 any other png image
if (compressed == null && path != null) {
int lastSlash = path.lastIndexOf('/');
if (lastSlash > 0) {
String artPath = path.substring(0, lastSlash);
String sdroot = Environment.getExternalStorageDirectory().getAbsolutePath();
String dwndir = Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DOWNLOADS).getAbsolutePath();
String bestmatch = null;
synchronized (sFolderArtMap) {
if (sFolderArtMap.containsKey(artPath)) {
bestmatch = sFolderArtMap.get(artPath);
} else if (!artPath.equalsIgnoreCase(sdroot) &&
!artPath.equalsIgnoreCase(dwndir)) {
File dir = new File(artPath);
String [] entrynames = dir.list();
if (entrynames == null) {
return null;
}
bestmatch = null;
int matchlevel = 1000;
for (int i = entrynames.length - 1; i >=0; i--) {
String entry = entrynames[i].toLowerCase();
if (entry.equals("albumart.jpg")) {
bestmatch = entrynames[i];
break;
} else if (entry.startsWith("albumart")
&& entry.endsWith("large.jpg")
&& matchlevel > 1) {
bestmatch = entrynames[i];
matchlevel = 1;
} else if (entry.contains("albumart")
&& entry.endsWith(".jpg")
&& matchlevel > 2) {
bestmatch = entrynames[i];
matchlevel = 2;
} else if (entry.endsWith(".jpg") && matchlevel > 3) {
bestmatch = entrynames[i];
matchlevel = 3;
} else if (entry.endsWith(".png") && matchlevel > 4) {
bestmatch = entrynames[i];
matchlevel = 4;
}
}
// note that this may insert null if no album art was found
sFolderArtMap.put(artPath, bestmatch);
}
}
if (bestmatch != null) {
File file = new File(artPath, bestmatch);
if (file.exists()) {
compressed = new byte[(int)file.length()];
FileInputStream stream = null;
try {
stream = new FileInputStream(file);
stream.read(compressed);
} catch (IOException ex) {
compressed = null;
} finally {
if (stream != null) {
stream.close();
}
}
}
}
}
}
} catch (IOException e) {
}
return compressed;
}
// Return a URI to write the album art to and update the database as necessary.
Uri getAlbumArtOutputUri(SQLiteDatabase db, long album_id, Uri albumart_uri) {
Uri out = null;
// TODO: this could be done more efficiently with a call to db.replace(), which
// replaces or inserts as needed, making it unnecessary to query() first.
if (albumart_uri != null) {
Cursor c = query(albumart_uri, new String [] { "_data" },
null, null, null);
if (c.moveToFirst()) {
String albumart_path = c.getString(0);
if (ensureFileExists(albumart_path)) {
out = albumart_uri;
}
} else {
albumart_uri = null;
}
c.close();
}
if (albumart_uri == null){
ContentValues initialValues = new ContentValues();
initialValues.put("album_id", album_id);
try {
ContentValues values = ensureFile(false, initialValues, "", ALBUM_THUMB_FOLDER);
long rowId = db.insert("album_art", "_data", values);
if (rowId > 0) {
out = ContentUris.withAppendedId(ALBUMART_URI, rowId);
}
} catch (IllegalStateException ex) {
Log.e(TAG, "error creating album thumb file");
}
}
return out;
}
// Write out the album art to the output URI, recompresses the given Bitmap
// if necessary, otherwise writes the compressed data.
private void writeAlbumArt(
boolean need_to_recompress, Uri out, byte[] compressed, Bitmap bm) {
boolean success = false;
try {
OutputStream outstream = getContext().getContentResolver().openOutputStream(out);
if (!need_to_recompress) {
// No need to recompress here, just write out the original
// compressed data here.
outstream.write(compressed);
success = true;
} else {
success = bm.compress(Bitmap.CompressFormat.JPEG, 75, outstream);
}
outstream.close();
} catch (FileNotFoundException ex) {
Log.e(TAG, "error creating file", ex);
} catch (IOException ex) {
Log.e(TAG, "error creating file", ex);
}
if (!success) {
// the thumbnail was not written successfully, delete the entry that refers to it
getContext().getContentResolver().delete(out, null, null);
}
}
private ParcelFileDescriptor getThumb(SQLiteDatabase db, String path, long album_id,
Uri albumart_uri) {
ThumbData d = new ThumbData();
d.db = db;
d.path = path;
d.album_id = album_id;
d.albumart_uri = albumart_uri;
return makeThumbInternal(d);
}
private ParcelFileDescriptor makeThumbInternal(ThumbData d) {
byte[] compressed = getCompressedAlbumArt(getContext(), d.path);
if (compressed == null) {
return null;
}
Bitmap bm = null;
boolean need_to_recompress = true;
try {
// get the size of the bitmap
BitmapFactory.Options opts = new BitmapFactory.Options();
opts.inJustDecodeBounds = true;
opts.inSampleSize = 1;
BitmapFactory.decodeByteArray(compressed, 0, compressed.length, opts);
// request a reasonably sized output image
// TODO: don't hardcode the size
while (opts.outHeight > 320 || opts.outWidth > 320) {
opts.outHeight /= 2;
opts.outWidth /= 2;
opts.inSampleSize *= 2;
}
if (opts.inSampleSize == 1) {
// The original album art was of proper size, we won't have to
// recompress the bitmap later.
need_to_recompress = false;
} else {
// get the image for real now
opts.inJustDecodeBounds = false;
opts.inPreferredConfig = Bitmap.Config.RGB_565;
bm = BitmapFactory.decodeByteArray(compressed, 0, compressed.length, opts);
if (bm != null && bm.getConfig() == null) {
Bitmap nbm = bm.copy(Bitmap.Config.RGB_565, false);
if (nbm != null && nbm != bm) {
bm.recycle();
bm = nbm;
}
}
}
} catch (Exception e) {
}
if (need_to_recompress && bm == null) {
return null;
}
if (d.albumart_uri == null) {
// this one doesn't need to be saved (probably a song with an unknown album),
// so stick it in a memory file and return that
try {
MemoryFile file = new MemoryFile("albumthumb", compressed.length);
file.writeBytes(compressed, 0, 0, compressed.length);
file.deactivate();
return file.getParcelFileDescriptor();
} catch (IOException e) {
}
} else {
// This one needs to actually be saved on the sd card.
// This is wrapped in a transaction because there are various things
// that could go wrong while generating the thumbnail, and we only want
// to update the database when all steps succeeded.
d.db.beginTransaction();
try {
Uri out = getAlbumArtOutputUri(d.db, d.album_id, d.albumart_uri);
if (out != null) {
writeAlbumArt(need_to_recompress, out, compressed, bm);
getContext().getContentResolver().notifyChange(MEDIA_URI, null);
ParcelFileDescriptor pfd = openFileHelper(out, "r");
d.db.setTransactionSuccessful();
return pfd;
}
} catch (FileNotFoundException ex) {
// do nothing, just return null below
} catch (UnsupportedOperationException ex) {
// do nothing, just return null below
} finally {
d.db.endTransaction();
if (bm != null) {
bm.recycle();
}
}
}
return null;
}
/**
* Look up the artist or album entry for the given name, creating that entry
* if it does not already exists.
* @param db The database
* @param table The table to store the key/name pair in.
* @param keyField The name of the key-column
* @param nameField The name of the name-column
* @param rawName The name that the calling app was trying to insert into the database
* @param cacheName The string that will be inserted in to the cache
* @param path The full path to the file being inserted in to the audio table
* @param albumHash A hash to distinguish between different albums of the same name
* @param artist The name of the artist, if known
* @param cache The cache to add this entry to
* @param srcuri The Uri that prompted the call to this method, used for determining whether this is
* the internal or external database
* @return The row ID for this artist/album, or -1 if the provided name was invalid
*/
private long getKeyIdForName(SQLiteDatabase db, String table, String keyField, String nameField,
String rawName, String cacheName, String path, int albumHash,
String artist, HashMap<String, Long> cache, Uri srcuri) {
long rowId;
if (rawName == null || rawName.length() == 0) {
return -1;
}
String k = MediaStore.Audio.keyFor(rawName);
if (k == null) {
return -1;
}
boolean isAlbum = table.equals("albums");
boolean isUnknown = MediaStore.UNKNOWN_STRING.equals(rawName);
// To distinguish same-named albums, we append a hash. The hash is based
// on the "album artist" tag if present, otherwise on the "compilation" tag
// if present, otherwise on the path.
// Ideally we would also take things like CDDB ID in to account, so
// we can group files from the same album that aren't in the same
// folder, but this is a quick and easy start that works immediately
// without requiring support from the mp3, mp4 and Ogg meta data
// readers, as long as the albums are in different folders.
if (isAlbum) {
k = k + albumHash;
if (isUnknown) {
k = k + artist;
}
}
String [] selargs = { k };
Cursor c = db.query(table, null, keyField + "=?", selargs, null, null, null);
try {
switch (c.getCount()) {
case 0: {
// insert new entry into table
ContentValues otherValues = new ContentValues();
otherValues.put(keyField, k);
otherValues.put(nameField, rawName);
rowId = db.insert(table, "duration", otherValues);
if (path != null && isAlbum && ! isUnknown) {
// We just inserted a new album. Now create an album art thumbnail for it.
makeThumbAsync(db, path, rowId);
}
if (rowId > 0) {
String volume = srcuri.toString().substring(16, 24); // extract internal/external
Uri uri = Uri.parse("content://media/" + volume + "/audio/" + table + "/" + rowId);
getContext().getContentResolver().notifyChange(uri, null);
}
}
break;
case 1: {
// Use the existing entry
c.moveToFirst();
rowId = c.getLong(0);
// Determine whether the current rawName is better than what's
// currently stored in the table, and update the table if it is.
String currentFancyName = c.getString(2);
String bestName = makeBestName(rawName, currentFancyName);
if (!bestName.equals(currentFancyName)) {
// update the table with the new name
ContentValues newValues = new ContentValues();
newValues.put(nameField, bestName);
db.update(table, newValues, "rowid="+Integer.toString((int)rowId), null);
String volume = srcuri.toString().substring(16, 24); // extract internal/external
Uri uri = Uri.parse("content://media/" + volume + "/audio/" + table + "/" + rowId);
getContext().getContentResolver().notifyChange(uri, null);
}
}
break;
default:
// corrupt database
Log.e(TAG, "Multiple entries in table " + table + " for key " + k);
rowId = -1;
break;
}
} finally {
if (c != null) c.close();
}
if (cache != null && ! isUnknown) {
cache.put(cacheName, rowId);
}
return rowId;
}
/**
* Returns the best string to use for display, given two names.
* Note that this function does not necessarily return either one
* of the provided names; it may decide to return a better alternative
* (for example, specifying the inputs "Police" and "Police, The" will
* return "The Police")
*
* The basic assumptions are:
* - longer is better ("The police" is better than "Police")
* - prefix is better ("The Police" is better than "Police, The")
* - accents are better ("Mot&ouml;rhead" is better than "Motorhead")
*
* @param one The first of the two names to consider
* @param two The last of the two names to consider
* @return The actual name to use
*/
String makeBestName(String one, String two) {
String name;
// Longer names are usually better.
if (one.length() > two.length()) {
name = one;
} else {
// Names with accents are usually better, and conveniently sort later
if (one.toLowerCase().compareTo(two.toLowerCase()) > 0) {
name = one;
} else {
name = two;
}
}
// Prefixes are better than postfixes.
if (name.endsWith(", the") || name.endsWith(",the") ||
name.endsWith(", an") || name.endsWith(",an") ||
name.endsWith(", a") || name.endsWith(",a")) {
String fix = name.substring(1 + name.lastIndexOf(','));
name = fix.trim() + " " + name.substring(0, name.lastIndexOf(','));
}
// TODO: word-capitalize the resulting name
return name;
}
/**
* Looks up the database based on the given URI.
*
* @param uri The requested URI
* @returns the database for the given URI
*/
private DatabaseHelper getDatabaseForUri(Uri uri) {
synchronized (mDatabases) {
if (uri.getPathSegments().size() > 1) {
return mDatabases.get(uri.getPathSegments().get(0));
}
}
return null;
}
/**
* Attach the database for a volume (internal or external).
* Does nothing if the volume is already attached, otherwise
* checks the volume ID and sets up the corresponding database.
*
* @param volume to attach, either {@link #INTERNAL_VOLUME} or {@link #EXTERNAL_VOLUME}.
* @return the content URI of the attached volume.
*/
private Uri attachVolume(String volume) {
if (Process.supportsProcesses() && Binder.getCallingPid() != Process.myPid()) {
throw new SecurityException(
"Opening and closing databases not allowed.");
}
synchronized (mDatabases) {
if (mDatabases.get(volume) != null) { // Already attached
return Uri.parse("content://media/" + volume);
}
DatabaseHelper db;
if (INTERNAL_VOLUME.equals(volume)) {
db = new DatabaseHelper(getContext(), INTERNAL_DATABASE_NAME, true);
} else if (EXTERNAL_VOLUME.equals(volume)) {
String path = Environment.getExternalStorageDirectory().getPath();
int volumeID = FileUtils.getFatVolumeId(path);
if (LOCAL_LOGV) Log.v(TAG, path + " volume ID: " + volumeID);
// generate database name based on volume ID
String dbName = "external-" + Integer.toHexString(volumeID) + ".db";
db = new DatabaseHelper(getContext(), dbName, false);
mVolumeId = volumeID;
} else {
throw new IllegalArgumentException("There is no volume named " + volume);
}
mDatabases.put(volume, db);
if (!db.mInternal) {
// clean up stray album art files: delete every file not in the database
File[] files = new File(
Environment.getExternalStorageDirectory(),
ALBUM_THUMB_FOLDER).listFiles();
HashSet<String> fileSet = new HashSet();
for (int i = 0; files != null && i < files.length; i++) {
fileSet.add(files[i].getPath());
}
Cursor cursor = query(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
new String[] { MediaStore.Audio.Albums.ALBUM_ART }, null, null, null);
try {
while (cursor != null && cursor.moveToNext()) {
fileSet.remove(cursor.getString(0));
}
} finally {
if (cursor != null) cursor.close();
}
Iterator<String> iterator = fileSet.iterator();
while (iterator.hasNext()) {
String filename = iterator.next();
if (LOCAL_LOGV) Log.v(TAG, "deleting obsolete album art " + filename);
new File(filename).delete();
}
}
}
if (LOCAL_LOGV) Log.v(TAG, "Attached volume: " + volume);
return Uri.parse("content://media/" + volume);
}
/**
* Detach the database for a volume (must be external).
* Does nothing if the volume is already detached, otherwise
* closes the database and sends a notification to listeners.
*
* @param uri The content URI of the volume, as returned by {@link #attachVolume}
*/
private void detachVolume(Uri uri) {
if (Process.supportsProcesses() && Binder.getCallingPid() != Process.myPid()) {
throw new SecurityException(
"Opening and closing databases not allowed.");
}
String volume = uri.getPathSegments().get(0);
if (INTERNAL_VOLUME.equals(volume)) {
throw new UnsupportedOperationException(
"Deleting the internal volume is not allowed");
} else if (!EXTERNAL_VOLUME.equals(volume)) {
throw new IllegalArgumentException(
"There is no volume named " + volume);
}
synchronized (mDatabases) {
DatabaseHelper database = mDatabases.get(volume);
if (database == null) return;
try {
// touch the database file to show it is most recently used
File file = new File(database.getReadableDatabase().getPath());
file.setLastModified(System.currentTimeMillis());
} catch (SQLException e) {
Log.e(TAG, "Can't touch database file", e);
}
mDatabases.remove(volume);
database.close();
}
getContext().getContentResolver().notifyChange(uri, null);
if (LOCAL_LOGV) Log.v(TAG, "Detached volume: " + volume);
}
private static String TAG = "MediaProvider";
private static final boolean LOCAL_LOGV = true;
private static final int DATABASE_VERSION = 93;
private static final String INTERNAL_DATABASE_NAME = "internal.db";
// maximum number of cached external databases to keep
private static final int MAX_EXTERNAL_DATABASES = 3;
// Delete databases that have not been used in two months
// 60 days in milliseconds (1000 * 60 * 60 * 24 * 60)
private static final long OBSOLETE_DATABASE_DB = 5184000000L;
private HashMap<String, DatabaseHelper> mDatabases;
private Handler mThumbHandler;
// name of the volume currently being scanned by the media scanner (or null)
private String mMediaScannerVolume;
// current FAT volume ID
private int mVolumeId;
static final String INTERNAL_VOLUME = "internal";
static final String EXTERNAL_VOLUME = "external";
static final String ALBUM_THUMB_FOLDER = "Android/data/com.android.providers.media/albumthumbs";
// path for writing contents of in memory temp database
private String mTempDatabasePath;
private static final int IMAGES_MEDIA = 1;
private static final int IMAGES_MEDIA_ID = 2;
private static final int IMAGES_THUMBNAILS = 3;
private static final int IMAGES_THUMBNAILS_ID = 4;
private static final int AUDIO_MEDIA = 100;
private static final int AUDIO_MEDIA_ID = 101;
private static final int AUDIO_MEDIA_ID_GENRES = 102;
private static final int AUDIO_MEDIA_ID_GENRES_ID = 103;
private static final int AUDIO_MEDIA_ID_PLAYLISTS = 104;
private static final int AUDIO_MEDIA_ID_PLAYLISTS_ID = 105;
private static final int AUDIO_GENRES = 106;
private static final int AUDIO_GENRES_ID = 107;
private static final int AUDIO_GENRES_ID_MEMBERS = 108;
private static final int AUDIO_GENRES_ID_MEMBERS_ID = 109;
private static final int AUDIO_PLAYLISTS = 110;
private static final int AUDIO_PLAYLISTS_ID = 111;
private static final int AUDIO_PLAYLISTS_ID_MEMBERS = 112;
private static final int AUDIO_PLAYLISTS_ID_MEMBERS_ID = 113;
private static final int AUDIO_ARTISTS = 114;
private static final int AUDIO_ARTISTS_ID = 115;
private static final int AUDIO_ALBUMS = 116;
private static final int AUDIO_ALBUMS_ID = 117;
private static final int AUDIO_ARTISTS_ID_ALBUMS = 118;
private static final int AUDIO_ALBUMART = 119;
private static final int AUDIO_ALBUMART_ID = 120;
private static final int AUDIO_ALBUMART_FILE_ID = 121;
private static final int VIDEO_MEDIA = 200;
private static final int VIDEO_MEDIA_ID = 201;
private static final int VIDEO_THUMBNAILS = 202;
private static final int VIDEO_THUMBNAILS_ID = 203;
private static final int VOLUMES = 300;
private static final int VOLUMES_ID = 301;
private static final int AUDIO_SEARCH_LEGACY = 400;
private static final int AUDIO_SEARCH_BASIC = 401;
private static final int AUDIO_SEARCH_FANCY = 402;
private static final int MEDIA_SCANNER = 500;
private static final int FS_ID = 600;
private static final UriMatcher URI_MATCHER =
new UriMatcher(UriMatcher.NO_MATCH);
private static final String[] ID_PROJECTION = new String[] {
MediaStore.MediaColumns._ID
};
private static final String[] MIME_TYPE_PROJECTION = new String[] {
MediaStore.MediaColumns._ID, // 0
MediaStore.MediaColumns.MIME_TYPE, // 1
};
private static final String[] READY_FLAG_PROJECTION = new String[] {
MediaStore.MediaColumns._ID,
MediaStore.MediaColumns.DATA,
Images.Media.MINI_THUMB_MAGIC
};
private static final String[] EXTERNAL_DATABASE_TABLES = new String[] {
"images",
"thumbnails",
"audio_meta",
"artists",
"albums",
"audio_genres",
"audio_genres_map",
"audio_playlists",
"audio_playlists_map",
"video",
};
static
{
URI_MATCHER.addURI("media", "*/images/media", IMAGES_MEDIA);
URI_MATCHER.addURI("media", "*/images/media/#", IMAGES_MEDIA_ID);
URI_MATCHER.addURI("media", "*/images/thumbnails", IMAGES_THUMBNAILS);
URI_MATCHER.addURI("media", "*/images/thumbnails/#", IMAGES_THUMBNAILS_ID);
URI_MATCHER.addURI("media", "*/audio/media", AUDIO_MEDIA);
URI_MATCHER.addURI("media", "*/audio/media/#", AUDIO_MEDIA_ID);
URI_MATCHER.addURI("media", "*/audio/media/#/genres", AUDIO_MEDIA_ID_GENRES);
URI_MATCHER.addURI("media", "*/audio/media/#/genres/#", AUDIO_MEDIA_ID_GENRES_ID);
URI_MATCHER.addURI("media", "*/audio/media/#/playlists", AUDIO_MEDIA_ID_PLAYLISTS);
URI_MATCHER.addURI("media", "*/audio/media/#/playlists/#", AUDIO_MEDIA_ID_PLAYLISTS_ID);
URI_MATCHER.addURI("media", "*/audio/genres", AUDIO_GENRES);
URI_MATCHER.addURI("media", "*/audio/genres/#", AUDIO_GENRES_ID);
URI_MATCHER.addURI("media", "*/audio/genres/#/members", AUDIO_GENRES_ID_MEMBERS);
URI_MATCHER.addURI("media", "*/audio/genres/#/members/#", AUDIO_GENRES_ID_MEMBERS_ID);
URI_MATCHER.addURI("media", "*/audio/playlists", AUDIO_PLAYLISTS);
URI_MATCHER.addURI("media", "*/audio/playlists/#", AUDIO_PLAYLISTS_ID);
URI_MATCHER.addURI("media", "*/audio/playlists/#/members", AUDIO_PLAYLISTS_ID_MEMBERS);
URI_MATCHER.addURI("media", "*/audio/playlists/#/members/#", AUDIO_PLAYLISTS_ID_MEMBERS_ID);
URI_MATCHER.addURI("media", "*/audio/artists", AUDIO_ARTISTS);
URI_MATCHER.addURI("media", "*/audio/artists/#", AUDIO_ARTISTS_ID);
URI_MATCHER.addURI("media", "*/audio/artists/#/albums", AUDIO_ARTISTS_ID_ALBUMS);
URI_MATCHER.addURI("media", "*/audio/albums", AUDIO_ALBUMS);
URI_MATCHER.addURI("media", "*/audio/albums/#", AUDIO_ALBUMS_ID);
URI_MATCHER.addURI("media", "*/audio/albumart", AUDIO_ALBUMART);
URI_MATCHER.addURI("media", "*/audio/albumart/#", AUDIO_ALBUMART_ID);
URI_MATCHER.addURI("media", "*/audio/media/#/albumart", AUDIO_ALBUMART_FILE_ID);
URI_MATCHER.addURI("media", "*/video/media", VIDEO_MEDIA);
URI_MATCHER.addURI("media", "*/video/media/#", VIDEO_MEDIA_ID);
URI_MATCHER.addURI("media", "*/video/thumbnails", VIDEO_THUMBNAILS);
URI_MATCHER.addURI("media", "*/video/thumbnails/#", VIDEO_THUMBNAILS_ID);
URI_MATCHER.addURI("media", "*/media_scanner", MEDIA_SCANNER);
URI_MATCHER.addURI("media", "*/fs_id", FS_ID);
URI_MATCHER.addURI("media", "*", VOLUMES_ID);
URI_MATCHER.addURI("media", null, VOLUMES);
/**
* @deprecated use the 'basic' or 'fancy' search Uris instead
*/
URI_MATCHER.addURI("media", "*/audio/" + SearchManager.SUGGEST_URI_PATH_QUERY,
AUDIO_SEARCH_LEGACY);
URI_MATCHER.addURI("media", "*/audio/" + SearchManager.SUGGEST_URI_PATH_QUERY + "/*",
AUDIO_SEARCH_LEGACY);
// used for search suggestions
URI_MATCHER.addURI("media", "*/audio/search/" + SearchManager.SUGGEST_URI_PATH_QUERY,
AUDIO_SEARCH_BASIC);
URI_MATCHER.addURI("media", "*/audio/search/" + SearchManager.SUGGEST_URI_PATH_QUERY +
"/*", AUDIO_SEARCH_BASIC);
// used by the music app's search activity
URI_MATCHER.addURI("media", "*/audio/search/fancy", AUDIO_SEARCH_FANCY);
URI_MATCHER.addURI("media", "*/audio/search/fancy/*", AUDIO_SEARCH_FANCY);
}
}