1 /* 2 * Copyright 2016, 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.managedprovisioning.analytics; 18 19 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_COPY_ACCOUNT_TASK_MS; 20 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_CREATE_PROFILE_TASK_MS; 21 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_DOWNLOAD_PACKAGE_TASK_MS; 22 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENCRYPT_DEVICE_ACTIVITY_TIME_MS; 23 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_INSTALL_PACKAGE_TASK_MS; 24 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_PREPROVISIONING_ACTIVITY_TIME_MS; 25 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_PROVISIONING_ACTIVITY_TIME_MS; 26 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_START_PROFILE_TASK_MS; 27 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_WEB_ACTIVITY_TIME_MS; 28 import static com.android.internal.util.Preconditions.checkNotNull; 29 30 import android.annotation.IntDef; 31 import android.content.Context; 32 33 import com.android.internal.annotations.VisibleForTesting; 34 35 /** 36 * Utility class to log time. 37 */ 38 public class TimeLogger { 39 40 private final int mCategory; 41 private final Context mContext; 42 private final MetricsLoggerWrapper mMetricsLoggerWrapper; 43 private final AnalyticsUtils mAnalyticsUtils; 44 private Long mStartTime; 45 46 @IntDef({ 47 PROVISIONING_PROVISIONING_ACTIVITY_TIME_MS, 48 PROVISIONING_PREPROVISIONING_ACTIVITY_TIME_MS, 49 PROVISIONING_ENCRYPT_DEVICE_ACTIVITY_TIME_MS, 50 PROVISIONING_WEB_ACTIVITY_TIME_MS, 51 PROVISIONING_COPY_ACCOUNT_TASK_MS, 52 PROVISIONING_CREATE_PROFILE_TASK_MS, 53 PROVISIONING_START_PROFILE_TASK_MS, 54 PROVISIONING_DOWNLOAD_PACKAGE_TASK_MS, 55 PROVISIONING_INSTALL_PACKAGE_TASK_MS}) 56 public @interface TimeCategory {} 57 TimeLogger(Context context, @TimeCategory int category)58 public TimeLogger(Context context, @TimeCategory int category) { 59 this(context, category, new MetricsLoggerWrapper(), new AnalyticsUtils()); 60 } 61 62 @VisibleForTesting TimeLogger( Context context, int category, MetricsLoggerWrapper metricsLoggerWrapper, AnalyticsUtils analyticsUtils)63 TimeLogger( 64 Context context, 65 int category, 66 MetricsLoggerWrapper metricsLoggerWrapper, 67 AnalyticsUtils analyticsUtils) { 68 mContext = checkNotNull(context); 69 mCategory = checkNotNull(category); 70 mMetricsLoggerWrapper = checkNotNull(metricsLoggerWrapper); 71 mAnalyticsUtils = checkNotNull(analyticsUtils); 72 } 73 74 /** 75 * Notifies start time to logger. 76 */ start()77 public void start() { 78 mStartTime = mAnalyticsUtils.elapsedRealTime(); 79 } 80 81 /** 82 * Notifies stop time to logger. Call is ignored if there is no start time. 83 */ stop()84 public void stop() { 85 // Ignore logging time if we couldn't find start time. 86 if (mStartTime != null) { 87 // Provisioning wouldn't run for 25 days, so int should be fine. 88 final int time = (int) (mAnalyticsUtils.elapsedRealTime() - mStartTime); 89 // Clear stored start time, we shouldn't log total time twice for same start time. 90 mStartTime = null; 91 mMetricsLoggerWrapper.logAction(mContext, mCategory, time); 92 } 93 } 94 } 95