1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.providers.media.playlist; 18 19 import android.text.TextUtils; 20 21 import androidx.annotation.NonNull; 22 23 import java.io.BufferedReader; 24 import java.io.IOException; 25 import java.io.InputStream; 26 import java.io.InputStreamReader; 27 import java.io.OutputStream; 28 import java.io.PrintWriter; 29 import java.nio.file.FileSystem; 30 import java.nio.file.FileSystems; 31 import java.nio.file.Path; 32 import java.util.List; 33 34 public class M3uPlaylistPersister implements PlaylistPersister { 35 @Override read(@onNull InputStream in, @NonNull List<Path> items)36 public void read(@NonNull InputStream in, @NonNull List<Path> items) throws IOException { 37 final FileSystem fs = FileSystems.getDefault(); 38 try (BufferedReader reader = new BufferedReader(new InputStreamReader(in))) { 39 String line; 40 while ((line = reader.readLine()) != null) { 41 if (!TextUtils.isEmpty(line) && !line.startsWith("#")) { 42 items.add(fs.getPath(line.replace('\\', '/'))); 43 } 44 } 45 } 46 } 47 48 @Override write(@onNull OutputStream out, @NonNull List<Path> items)49 public void write(@NonNull OutputStream out, @NonNull List<Path> items) throws IOException { 50 try (PrintWriter writer = new PrintWriter(out)) { 51 writer.println("#EXTM3U"); 52 for (Path item : items) { 53 writer.println(item); 54 } 55 } 56 } 57 } 58