| /* |
| * 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; |
| } |
| } |