1 /* 2 * Copyright (C) 2017 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.tv.common.util; 18 19 import android.net.TrafficStats; 20 import android.support.annotation.NonNull; 21 import java.util.concurrent.Executor; 22 23 /** Constants for tagging network traffic in the Live channels app. */ 24 public final class NetworkTrafficTags { 25 26 public static final int DEFAULT_LIVE_CHANNELS = 1; 27 public static final int LOGO_FETCHER = 2; 28 public static final int HDHOMERUN = 3; 29 public static final int EPG_FETCH = 4; 30 31 /** 32 * An executor which simply wraps a provided delegate executor, but calls {@link 33 * TrafficStats#setThreadStatsTag(int)} before executing any task. 34 */ 35 public static class TrafficStatsTaggingExecutor implements Executor { 36 private final Executor delegateExecutor; 37 private final int tag; 38 39 public TrafficStatsTaggingExecutor(Executor delegateExecutor, int tag) { 40 this.delegateExecutor = delegateExecutor; 41 this.tag = tag; 42 } 43 44 @Override 45 public void execute(final @NonNull Runnable command) { 46 // TODO(b/62038127): robolectric does not support lamdas in unbundled apps 47 delegateExecutor.execute( 48 new Runnable() { 49 @Override 50 public void run() { 51 TrafficStats.setThreadStatsTag(tag); 52 try { 53 command.run(); 54 } finally { 55 TrafficStats.clearThreadStatsTag(); 56 } 57 } 58 }); 59 } 60 } 61 62 private NetworkTrafficTags() {} 63 } 64
