content: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.powermodel.component;
  
  import java.util.ArrayList;
  import java.util.List;
  import com.android.powermodel.AttributionKey;
  import com.android.powermodel.ComponentActivity;
  import com.android.powermodel.RawBatteryStats;
  import com.android.powermodel.SpecialApp;
  
  public class ModemBatteryStatsReader {
      private ModemBatteryStatsReader() {
      }
  
      public static List<ComponentActivity> createActivities(RawBatteryStats bs) {
          final List<ComponentActivity> result = new ArrayList<ComponentActivity>();
  
          // The whole system
          createGlobal(result, bs);
  
          // The apps
          createApps(result, bs);
  
          // The synthetic "cell" app.
          createRemainder(result, bs);
  
          return result;
      }
  
      private static void createGlobal(List<ComponentActivity> result, RawBatteryStats bs) {
          final ModemGlobalActivity global
                  = new ModemGlobalActivity(new AttributionKey(SpecialApp.GLOBAL));
  
          final RawBatteryStats.GlobalNetwork gn = bs.getSingle(RawBatteryStats.GlobalNetwork.class);
          final RawBatteryStats.Misc misc = bs.getSingle(RawBatteryStats.Misc.class);
  
          // Null here just means no network activity.
          if (gn != null && misc != null) {
              global.rxPacketCount = gn.mobileRxTotalPackets;
              global.txPacketCount = gn.mobileTxTotalPackets;
  
              global.totalActiveTimeMs = misc.mobileRadioActiveTimeMs;
          }
  
          result.add(global);
      }
  
      private static void createApps(List<ComponentActivity> result, RawBatteryStats bs) {
          for (AttributionKey key: bs.getApps()) {
              final int uid = key.getUid();
              final RawBatteryStats.Network network
                      = bs.getSingle(RawBatteryStats.Network.class, uid);
  
              // Null here just means no network activity.
              if (network != null) {
                  final ModemAppActivity app = new ModemAppActivity(key);
  
                  app.rxPacketCount = network.mobileRxPackets;
                  app.txPacketCount = network.mobileTxPackets;
  
                  result.add(app);
              }
          }
      }
  
      private static void createRemainder(List<ComponentActivity> result, RawBatteryStats bs) {
          final RawBatteryStats.SignalStrengthTime strength
                  = bs.getSingle(RawBatteryStats.SignalStrengthTime.class);
          final RawBatteryStats.SignalScanningTime scanning
                  = bs.getSingle(RawBatteryStats.SignalScanningTime.class);
          final RawBatteryStats.Misc misc = bs.getSingle(RawBatteryStats.Misc.class);
  
          if (strength != null && scanning != null && misc != null) {
              final ModemRemainderActivity remainder
                      = new ModemRemainderActivity(new AttributionKey(SpecialApp.REMAINDER));
  
              // Signal strength buckets
              remainder.strengthTimeMs = strength.phoneSignalStrengthTimeMs;
  
              // Time spent scanning
              remainder.scanningTimeMs = scanning.phoneSignalScanningTimeMs;
  
              // Unaccounted for active time
              final long totalActiveTimeMs = misc.mobileRadioActiveTimeMs;
              long appActiveTimeMs = 0;
              for (RawBatteryStats.Network nw: bs.getMultiple(RawBatteryStats.Network.class)) {
                  appActiveTimeMs += nw.mobileRadioActiveTimeUs / 1000;
              }
              remainder.activeTimeMs = totalActiveTimeMs - appActiveTimeMs;
  
              result.add(remainder);
          }
      }
  }
  
  