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/*
* Copyright (C) 2023 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.tv.settings.device.eco;
import android.app.job.JobInfo;
import android.app.job.JobParameters;
import android.app.job.JobScheduler;
import android.app.job.JobService;
import android.content.ComponentName;
import android.content.Context;
import android.content.pm.PackageManager;
import android.os.PowerManager.LowPowerStandbyPolicy;
import android.util.ArraySet;
import android.util.Log;
import com.android.settingslib.utils.ThreadUtils;
import com.android.tv.settings.R;
import com.android.tv.settings.device.eco.EnergyModesHelper.EnergyMode;
import com.android.tv.twopanelsettings.slices.TvSettingsStatsLog;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* JobService to log available energy mode policies.
*/
public class EnergyModesStatsLogJobService extends JobService {
private static final String TAG = "EnergyModesStatsLogJobService";
private static final long WRITE_STATS_FREQUENCY_MS = TimeUnit.DAYS.toMillis(6);
/** Schedule a periodic job to log available energy mode policies. */
public static void scheduleEnergyModesStatsLog(Context context) {
final EnergyModesHelper energyModesHelper = new EnergyModesHelper(context);
if (!energyModesHelper.areEnergyModesAvailable()) {
return;
}
final JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
final ComponentName component =
new ComponentName(context, EnergyModesStatsLogJobService.class);
final JobInfo job =
new JobInfo.Builder(R.integer.job_energy_modes_stats_log, component)
.setPeriodic(WRITE_STATS_FREQUENCY_MS)
.setRequiresDeviceIdle(true)
.setPersisted(true)
.build();
final JobInfo pending = jobScheduler.getPendingJob(R.integer.job_energy_modes_stats_log);
// Don't schedule it if it already exists, to make sure it runs periodically even after
// reboot
if (pending == null && jobScheduler.schedule(job) != JobScheduler.RESULT_SUCCESS) {
Log.i(TAG, "Energy Modes stats log job service schedule failed.");
}
}
@Override
public boolean onStartJob(JobParameters params) {
ThreadUtils.postOnBackgroundThread(() -> {
writePoliciesStatsLog(getApplicationContext());
jobFinished(params, false /* wantsReschedule */);
});
return true;
}
@Override
public boolean onStopJob(JobParameters jobParameters) {
return false;
}
/** Writes available energy mode policies to stats log */
public static void writePoliciesStatsLog(Context context) {
final EnergyModesHelper energyModesHelper = new EnergyModesHelper(context);
final EnergyMode current = energyModesHelper.updateEnergyMode();
final List<EnergyMode> energyModes = energyModesHelper.getEnergyModes();
for (EnergyMode energyMode : energyModes) {
final LowPowerStandbyPolicy policy = energyModesHelper.getPolicy(energyMode);
TvSettingsStatsLog.write(
TvSettingsStatsLog.TV_LOW_POWER_STANDBY_POLICY,
policy.getIdentifier(),
getExemptPackageUids(context, policy),
policy.getAllowedReasons(),
policy.getAllowedFeatures().toArray(new String[0]),
energyMode == current
);
}
}
private static int[] getExemptPackageUids(Context context, LowPowerStandbyPolicy policy) {
final PackageManager packageManager = context.getPackageManager();
final ArraySet<Integer> exemptUids = new ArraySet<>();
for (String exemptPackage : policy.getExemptPackages()) {
try {
int uid = packageManager.getPackageUid(exemptPackage, PackageManager.MATCH_ALL);
exemptUids.add(uid);
} catch (PackageManager.NameNotFoundException e) {
}
}
final int[] exemptUidsArray = new int[exemptUids.size()];
int i = 0;
for (Integer uid : exemptUids) {
exemptUidsArray[i++] = uid;
}
Arrays.sort(exemptUidsArray);
return exemptUidsArray;
}
}
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