1 /*
2  * Copyright (C) 2022 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.server.notification;
18 
19 import static android.app.job.JobScheduler.RESULT_SUCCESS;
20 
21 import android.app.job.JobInfo;
22 import android.app.job.JobParameters;
23 import android.app.job.JobScheduler;
24 import android.app.job.JobService;
25 import android.content.ComponentName;
26 import android.content.Context;
27 import android.os.CancellationSignal;
28 import android.util.Slog;
29 
30 import com.android.internal.annotations.VisibleForTesting;
31 import com.android.server.LocalServices;
32 
33 import java.util.concurrent.TimeUnit;
34 
35 /**
36  * This service runs every twenty minutes to ensure the retention policy for notification history
37  * data.
38  */
39 public class NotificationHistoryJobService extends JobService {
40     private final static String TAG = "NotificationHistoryJob";
41     private static final long JOB_RUN_INTERVAL = TimeUnit.MINUTES.toMillis(20);
42 
43     static final int BASE_JOB_ID = 237039804;
44 
scheduleJob(Context context)45     static void scheduleJob(Context context) {
46         JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
47         if (jobScheduler.getPendingJob(BASE_JOB_ID) == null) {
48             ComponentName component =
49                     new ComponentName(context, NotificationHistoryJobService.class);
50             JobInfo newJob = new JobInfo.Builder(BASE_JOB_ID, component)
51                     .setRequiresDeviceIdle(false)
52                     .setPeriodic(JOB_RUN_INTERVAL)
53                     .build();
54             if (jobScheduler.schedule(newJob) != RESULT_SUCCESS) {
55                 Slog.w(TAG, "Failed to schedule history cleanup job");
56             }
57         }
58     }
59 
60     private CancellationSignal mSignal;
61 
62     @Override
onStartJob(JobParameters params)63     public boolean onStartJob(JobParameters params) {
64         mSignal = new CancellationSignal();
65         new Thread(() -> {
66             NotificationManagerInternal nmInternal =
67                     LocalServices.getService(NotificationManagerInternal.class);
68             nmInternal.cleanupHistoryFiles();
69             jobFinished(params, mSignal.isCanceled());
70         }).start();
71         return true;
72     }
73 
74     @Override
onStopJob(JobParameters params)75     public boolean onStopJob(JobParameters params) {
76         if (mSignal != null) {
77             mSignal.cancel();
78         }
79         return false;
80     }
81 
82     @Override
83     @VisibleForTesting
attachBaseContext(Context base)84     protected void attachBaseContext(Context base) {
85         super.attachBaseContext(base);
86     }
87 }
88 
89