/*
|
* Copyright (C) 2017 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;
|
|
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.res.Resources;
|
import android.os.Environment;
|
import android.os.SystemProperties;
|
import android.util.Slog;
|
import android.util.TimeUtils;
|
|
import com.android.internal.R;
|
|
import java.util.concurrent.TimeUnit;
|
|
/**
|
* {@link JobService} that marks
|
* {@link Environment#getDataPreloadsFileCacheDirectory() preloaded file cache} as expired after a
|
* pre-configured timeout.
|
*/
|
public class PreloadsFileCacheExpirationJobService extends JobService {
|
private static final boolean DEBUG = false; // Do not submit with true
|
private static final String TAG = "PreloadsFileCacheExpirationJobService";
|
|
// TODO move all JOB_IDs into a single class to avoid collisions
|
private static final int JOB_ID = 100500;
|
|
private static final String PERSIST_SYS_PRELOADS_FILE_CACHE_EXPIRED
|
= "persist.sys.preloads.file_cache_expired";
|
|
public static void schedule(Context context) {
|
int keepPreloadsMinDays = Resources.getSystem().getInteger(
|
R.integer.config_keepPreloadsMinDays); // Default is 1 week
|
long keepPreloadsMinTimeoutMs = DEBUG ? TimeUnit.MINUTES.toMillis(2)
|
: TimeUnit.DAYS.toMillis(keepPreloadsMinDays);
|
long keepPreloadsMaxTimeoutMs = DEBUG ? TimeUnit.MINUTES.toMillis(3)
|
: TimeUnit.DAYS.toMillis(keepPreloadsMinDays + 1);
|
|
if (DEBUG) {
|
StringBuilder sb = new StringBuilder("Scheduling expiration job to run in ");
|
TimeUtils.formatDuration(keepPreloadsMinTimeoutMs, sb);
|
Slog.i(TAG, sb.toString());
|
}
|
JobInfo expirationJob = new JobInfo.Builder(JOB_ID,
|
new ComponentName(context, PreloadsFileCacheExpirationJobService.class))
|
.setPersisted(true)
|
.setMinimumLatency(keepPreloadsMinTimeoutMs)
|
.setOverrideDeadline(keepPreloadsMaxTimeoutMs)
|
.build();
|
|
JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
|
jobScheduler.schedule(expirationJob);
|
}
|
|
@Override
|
public boolean onStartJob(JobParameters params) {
|
SystemProperties.set(PERSIST_SYS_PRELOADS_FILE_CACHE_EXPIRED, "1");
|
Slog.i(TAG, "Set " + PERSIST_SYS_PRELOADS_FILE_CACHE_EXPIRED + "=1");
|
return false;
|
}
|
|
@Override
|
public boolean onStopJob(JobParameters params) {
|
return false;
|
}
|
}
|