| /* |
| * Copyright (C) 2020 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.server.powerstats; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.os.BatteryManager; |
| import android.util.Slog; |
| |
| /** |
| * BatteryTrigger instantiates a BroadcastReceiver that listens for changes |
| * to the battery. When the battery level drops by 1% a message is sent to |
| * the PowerStatsLogger to log the rail energy data to on-device storage. |
| */ |
| public final class BatteryTrigger extends PowerStatsLogTrigger { |
| private static final String TAG = BatteryTrigger.class.getSimpleName(); |
| private static final boolean DEBUG = false; |
| |
| private int mBatteryLevel = 0; |
| |
| private final BroadcastReceiver mBatteryLevelReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| switch (intent.getAction()) { |
| case Intent.ACTION_BATTERY_CHANGED: |
| int newBatteryLevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); |
| |
| if (newBatteryLevel < mBatteryLevel) { |
| if (DEBUG) Slog.d(TAG, "Battery level dropped. Log rail data"); |
| logPowerStatsData(PowerStatsLogger.MSG_LOG_TO_DATA_STORAGE_BATTERY_DROP); |
| } |
| |
| mBatteryLevel = newBatteryLevel; |
| break; |
| } |
| } |
| }; |
| |
| public BatteryTrigger(Context context, PowerStatsLogger powerStatsLogger, |
| boolean triggerEnabled) { |
| super(context, powerStatsLogger); |
| |
| if (triggerEnabled) { |
| IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED); |
| Intent batteryStatus = mContext.registerReceiver(mBatteryLevelReceiver, filter); |
| mBatteryLevel = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, 0); |
| } |
| } |
| } |