2018-07-27 13:07:33 +00:00
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/*
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* Copyright (C) 2014 The CyanogenMod Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package code.name.monkey.retromusic.providers;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import android.provider.BaseColumns;
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import android.provider.MediaStore.Audio.AudioColumns;
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2018-08-30 09:29:30 +00:00
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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2018-07-27 13:07:33 +00:00
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import code.name.monkey.retromusic.loaders.SongLoader;
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import code.name.monkey.retromusic.model.Song;
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import java.util.ArrayList;
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import io.reactivex.Observable;
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/**
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* @author Andrew Neal, modified for Phonograph by Karim Abou Zeid
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* <p/>
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* This keeps track of the music playback and history state of the playback service
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*/
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public class MusicPlaybackQueueStore extends SQLiteOpenHelper {
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public static final String DATABASE_NAME = "music_playback_state.db";
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public static final String PLAYING_QUEUE_TABLE_NAME = "playing_queue";
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public static final String ORIGINAL_PLAYING_QUEUE_TABLE_NAME = "original_playing_queue";
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2018-11-13 03:30:08 +00:00
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private static final int VERSION = 5;
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2018-07-27 13:07:33 +00:00
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@Nullable
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private static MusicPlaybackQueueStore sInstance = null;
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/**
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* Constructor of <code>MusicPlaybackState</code>
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*
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* @param context The {@link Context} to use
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*/
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public MusicPlaybackQueueStore(final Context context) {
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super(context, DATABASE_NAME, null, VERSION);
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}
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/**
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* @param context The {@link Context} to use
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* @return A new instance of this class.
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*/
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@NonNull
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public static synchronized MusicPlaybackQueueStore getInstance(@NonNull final Context context) {
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if (sInstance == null) {
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sInstance = new MusicPlaybackQueueStore(context.getApplicationContext());
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}
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return sInstance;
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}
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@Override
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public void onCreate(@NonNull final SQLiteDatabase db) {
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createTable(db, PLAYING_QUEUE_TABLE_NAME);
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createTable(db, ORIGINAL_PLAYING_QUEUE_TABLE_NAME);
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}
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private void createTable(@NonNull final SQLiteDatabase db, final String tableName) {
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//noinspection StringBufferReplaceableByString
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StringBuilder builder = new StringBuilder();
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builder.append("CREATE TABLE IF NOT EXISTS ");
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builder.append(tableName);
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builder.append("(");
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builder.append(BaseColumns._ID);
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builder.append(" INT NOT NULL,");
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builder.append(AudioColumns.TITLE);
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builder.append(" STRING NOT NULL,");
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builder.append(AudioColumns.TRACK);
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builder.append(" INT NOT NULL,");
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builder.append(AudioColumns.YEAR);
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builder.append(" INT NOT NULL,");
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builder.append(AudioColumns.DURATION);
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builder.append(" LONG NOT NULL,");
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builder.append(AudioColumns.DATA);
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builder.append(" STRING NOT NULL,");
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builder.append(AudioColumns.DATE_MODIFIED);
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builder.append(" LONG NOT NULL,");
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builder.append(AudioColumns.ALBUM_ID);
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builder.append(" INT NOT NULL,");
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builder.append(AudioColumns.ALBUM);
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builder.append(" STRING NOT NULL,");
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builder.append(AudioColumns.ARTIST_ID);
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builder.append(" INT NOT NULL,");
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builder.append(AudioColumns.ARTIST);
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builder.append(" STRING NOT NULL);");
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db.execSQL(builder.toString());
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}
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@Override
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public void onUpgrade(@NonNull final SQLiteDatabase db, final int oldVersion, final int newVersion) {
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// not necessary yet
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db.execSQL("DROP TABLE IF EXISTS " + PLAYING_QUEUE_TABLE_NAME);
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db.execSQL("DROP TABLE IF EXISTS " + ORIGINAL_PLAYING_QUEUE_TABLE_NAME);
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onCreate(db);
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}
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@Override
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public void onDowngrade(@NonNull SQLiteDatabase db, int oldVersion, int newVersion) {
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// If we ever have downgrade, drop the table to be safe
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db.execSQL("DROP TABLE IF EXISTS " + PLAYING_QUEUE_TABLE_NAME);
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db.execSQL("DROP TABLE IF EXISTS " + ORIGINAL_PLAYING_QUEUE_TABLE_NAME);
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onCreate(db);
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}
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public synchronized void saveQueues(@NonNull final ArrayList<Song> playingQueue, @NonNull final ArrayList<Song> originalPlayingQueue) {
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saveQueue(PLAYING_QUEUE_TABLE_NAME, playingQueue);
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saveQueue(ORIGINAL_PLAYING_QUEUE_TABLE_NAME, originalPlayingQueue);
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}
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/**
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* Clears the existing database and saves the queue into the db so that when the
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* app is restarted, the tracks you were listening to is restored
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*
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* @param queue the queue to save
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*/
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private synchronized void saveQueue(final String tableName, @NonNull final ArrayList<Song> queue) {
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final SQLiteDatabase database = getWritableDatabase();
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database.beginTransaction();
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try {
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database.delete(tableName, null, null);
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database.setTransactionSuccessful();
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} finally {
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database.endTransaction();
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}
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final int NUM_PROCESS = 20;
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int position = 0;
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while (position < queue.size()) {
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database.beginTransaction();
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try {
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for (int i = position; i < queue.size() && i < position + NUM_PROCESS; i++) {
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Song song = queue.get(i);
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ContentValues values = new ContentValues(4);
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values.put(BaseColumns._ID, song.id);
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values.put(AudioColumns.TITLE, song.title);
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values.put(AudioColumns.TRACK, song.trackNumber);
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values.put(AudioColumns.YEAR, song.year);
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values.put(AudioColumns.DURATION, song.duration);
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values.put(AudioColumns.DATA, song.data);
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values.put(AudioColumns.DATE_MODIFIED, song.dateModified);
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values.put(AudioColumns.ALBUM_ID, song.albumId);
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values.put(AudioColumns.ALBUM, song.albumName);
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values.put(AudioColumns.ARTIST_ID, song.artistId);
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values.put(AudioColumns.ARTIST, song.artistName);
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database.insert(tableName, null, values);
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}
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database.setTransactionSuccessful();
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} finally {
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database.endTransaction();
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position += NUM_PROCESS;
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}
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}
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}
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@NonNull
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public Observable<ArrayList<Song>> getSavedPlayingQueue() {
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return getQueue(PLAYING_QUEUE_TABLE_NAME);
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}
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@NonNull
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public Observable<ArrayList<Song>> getSavedOriginalPlayingQueue() {
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return getQueue(ORIGINAL_PLAYING_QUEUE_TABLE_NAME);
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}
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@NonNull
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private Observable<ArrayList<Song>> getQueue(@NonNull final String tableName) {
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Cursor cursor = getReadableDatabase().query(tableName, null,
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null, null, null, null, null);
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2018-11-28 07:48:19 +00:00
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return SongLoader.Companion.getSongs(cursor);
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2018-07-27 13:07:33 +00:00
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}
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}
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