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/*
* Copyright (C) 2012 Andrew Neal
* Copyright (C) 2014 The CyanogenMod 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.cyanogenmod.eleven.loaders;
import android.content.Context;
import android.database.Cursor;
import android.provider.BaseColumns;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.AlbumColumns;
import android.util.Log;
import com.cyanogenmod.eleven.model.Album;
import com.cyanogenmod.eleven.utils.ApolloUtils;
import com.cyanogenmod.eleven.utils.Lists;
import com.cyanogenmod.eleven.utils.PreferenceUtils;
import java.util.ArrayList;
import java.util.List;
/**
* Used to query {@link MediaStore.Audio.Artists.Albums} and return the albums
* for a particular artist.
*
* @author Andrew Neal (andrewdneal@gmail.com)
*/
public class ArtistAlbumLoader extends WrappedAsyncTaskLoader<List<Album>> {
private static final String TAG = ArtistAlbumLoader.class.getSimpleName();
/**
* The result
*/
private final ArrayList<Album> mAlbumsList = Lists.newArrayList();
/**
* The {@link Cursor} used to run the query.
*/
private Cursor mCursor;
/**
* The Id of the artist the albums belong to.
*/
private final Long mArtistID;
/**
* Constructor of <code>ArtistAlbumHandler</code>
*
* @param context The {@link Context} to use.
* @param artistId The Id of the artist the albums belong to.
*/
public ArtistAlbumLoader(final Context context, final Long artistId) {
super(context);
mArtistID = artistId;
}
/**
* {@inheritDoc}
*/
@Override
public List<Album> loadInBackground() {
// Create the Cursor
mCursor = makeArtistAlbumCursor(getContext(), mArtistID);
// Gather the dataS
if (mCursor != null && mCursor.moveToFirst()) {
do {
// Copy the album id
final long id = mCursor.getLong(0);
// Copy the album name
final String albumName = mCursor.getString(1);
// Copy the artist name
final String artist = mCursor.getString(2);
// Copy the number of songs
final int songCount = mCursor.getInt(3);
// Copy the release year
final String year = mCursor.getString(4);
// as per designer's request, don't show unknown albums
if (MediaStore.UNKNOWN_STRING.equals(albumName)) {
continue;
}
// Create a new album
final Album album = new Album(id, albumName, artist, songCount, year);
// Add everything up
mAlbumsList.add(album);
} while (mCursor.moveToNext());
}
// Close the cursor
if (mCursor != null) {
mCursor.close();
mCursor = null;
}
return mAlbumsList;
}
/**
* @param context The {@link Context} to use.
* @param artistId The Id of the artist the albums belong to.
*/
public static final Cursor makeArtistAlbumCursor(final Context context, final Long artistId) {
try {
return context.getContentResolver().query(
MediaStore.Audio.Artists.Albums.getContentUri("external", artistId), new String[] {
/* 0 */
BaseColumns._ID,
/* 1 */
AlbumColumns.ALBUM,
/* 2 */
AlbumColumns.ARTIST,
/* 3 */
AlbumColumns.NUMBER_OF_SONGS,
/* 4 */
AlbumColumns.FIRST_YEAR
}, null, null, PreferenceUtils.getInstance(context).getArtistAlbumSortOrder());
} catch(Exception e) {
Log.e(TAG, ApolloUtils.formatException("unable to make ArtistAlbum cursor", e));
return null;
}
}
}
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