1 /* 2 * Copyright (C) 2021 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.networkstack.metrics; 18 19 import android.stats.connectivity.NetworkQuirkEvent; 20 21 import androidx.annotation.VisibleForTesting; 22 23 /** 24 * Class to record the network Quirk event into statsd. 25 * @hide 26 */ 27 public class NetworkQuirkMetrics { 28 private final Dependencies mDependencies; 29 private final NetworkStackQuirkReported.Builder mStatsBuilder = 30 NetworkStackQuirkReported.newBuilder(); 31 /** 32 * Dependencies of {@link NetworkQuirkMetrics}, useful for testing. 33 */ 34 @VisibleForTesting 35 public static class Dependencies { 36 /** 37 * @see NetworkStackStatsLog#write. 38 */ writeStats(int event)39 public void writeStats(int event) { 40 NetworkStackStatsLog.write(NetworkStackStatsLog.NETWORK_STACK_QUIRK_REPORTED, 41 0, event); 42 } 43 } 44 45 /** 46 * Get a NetworkQuirkMetrics instance. 47 */ NetworkQuirkMetrics()48 public NetworkQuirkMetrics() { 49 this(new Dependencies()); 50 } 51 52 @VisibleForTesting NetworkQuirkMetrics(Dependencies deps)53 public NetworkQuirkMetrics(Dependencies deps) { 54 mDependencies = deps; 55 } 56 57 /** 58 * Write the network Quirk Event into mStatsBuilder. 59 */ setEvent(NetworkQuirkEvent event)60 public void setEvent(NetworkQuirkEvent event) { 61 mStatsBuilder.setEvent(event); 62 } 63 64 /** 65 * Write the NetworkStackQuirkReported proto into statsd. 66 */ statsWrite()67 public NetworkStackQuirkReported statsWrite() { 68 final NetworkStackQuirkReported stats = mStatsBuilder.build(); 69 mDependencies.writeStats(stats.getEvent().getNumber()); 70 return stats; 71 } 72 } 73