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      1 /*
      2  * Copyright (C) 2018 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.settings.fuelgauge.batterytip;
     18 
     19 import android.app.job.JobInfo;
     20 import android.app.job.JobParameters;
     21 import android.app.job.JobScheduler;
     22 import android.app.job.JobService;
     23 import android.content.ComponentName;
     24 import android.content.Context;
     25 import android.support.annotation.VisibleForTesting;
     26 import android.util.Log;
     27 
     28 import com.android.settings.R;
     29 import com.android.settingslib.utils.ThreadUtils;
     30 
     31 import java.util.concurrent.TimeUnit;
     32 
     33 /** A JobService to clean up obsolete data in anomaly database */
     34 public class AnomalyCleanupJobService extends JobService {
     35     private static final String TAG = "AnomalyCleanUpJobService";
     36 
     37     @VisibleForTesting
     38     static final long CLEAN_UP_FREQUENCY_MS = TimeUnit.DAYS.toMillis(1);
     39 
     40     public static void scheduleCleanUp(Context context) {
     41         final JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
     42 
     43         final ComponentName component = new ComponentName(context, AnomalyCleanupJobService.class);
     44         final JobInfo.Builder jobBuilder =
     45                 new JobInfo.Builder(R.integer.job_anomaly_clean_up, component)
     46                         .setPeriodic(CLEAN_UP_FREQUENCY_MS)
     47                         .setRequiresDeviceIdle(true)
     48                         .setRequiresCharging(true)
     49                         .setPersisted(true);
     50         final JobInfo pending = jobScheduler.getPendingJob(R.integer.job_anomaly_clean_up);
     51 
     52         // Don't schedule it if it already exists, to make sure it runs periodically even after
     53         // reboot
     54         if (pending == null && jobScheduler.schedule(jobBuilder.build())
     55                 != JobScheduler.RESULT_SUCCESS) {
     56             Log.i(TAG, "Anomaly clean up job service schedule failed.");
     57         }
     58     }
     59 
     60     @Override
     61     public boolean onStartJob(JobParameters params) {
     62         final BatteryDatabaseManager batteryDatabaseManager = BatteryDatabaseManager
     63                 .getInstance(this);
     64         final BatteryTipPolicy policy = new BatteryTipPolicy(this);
     65         ThreadUtils.postOnBackgroundThread(() -> {
     66             batteryDatabaseManager.deleteAllAnomaliesBeforeTimeStamp(
     67                     System.currentTimeMillis() - TimeUnit.DAYS.toMillis(
     68                             policy.dataHistoryRetainDay));
     69             jobFinished(params, false /* wantsReschedule */);
     70         });
     71 
     72         return true;
     73     }
     74 
     75     @Override
     76     public boolean onStopJob(JobParameters jobParameters) {
     77         return false;
     78     }
     79 }
     80